From a210080195c95ebca2a517ee3057d71607aa65e0 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 16 Sep 2010 00:30:43 +0200 Subject: ACPI / ACPICA: Defer enabling of runtime GPEs (v3) The current ACPI GPEs initialization code has a problem that it enables some GPEs pointed to by device _PRW methods, generally intended for signaling wakeup events (system or device wakeup). These GPEs are then almost immediately disabled by the ACPI namespace scanning code with the help of acpi_gpe_can_wake(), but it would be better not to enable them at all until really necessary. Modify the initialization of GPEs so that the ones that have associated _Lxx or _Exx methods and are not pointed to by any _PRW methods will be enabled after the namespace scan is complete. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/acpica/acevents.h | 5 ++-- drivers/acpi/acpica/acglobal.h | 1 + drivers/acpi/acpica/aclocal.h | 3 +- drivers/acpi/acpica/evevent.c | 41 --------------------------- drivers/acpi/acpica/evgpeblk.c | 47 ++++++++++++++----------------- drivers/acpi/acpica/evgpeinit.c | 31 +-------------------- drivers/acpi/acpica/evxface.c | 19 +++++++------ drivers/acpi/acpica/evxfevnt.c | 61 +++++++++++++++++++++++++++++------------ drivers/acpi/acpica/utglobal.c | 1 + drivers/acpi/acpica/utxface.c | 13 --------- drivers/acpi/dock.c | 1 + drivers/acpi/scan.c | 9 +++++- 12 files changed, 92 insertions(+), 140 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 36867cd70eac..a6f99cc37a19 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -105,8 +105,9 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, struct acpi_gpe_block_info **return_gpe_block); acpi_status -acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_gpe_block_info *gpe_block); +acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *ignored); acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 1d192142c691..c1a6a6744aea 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -364,6 +364,7 @@ ACPI_EXTERN struct acpi_fixed_event_handler ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; ACPI_EXTERN struct acpi_gpe_block_info *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; +ACPI_EXTERN u8 acpi_all_gpes_initialized; /***************************************************************************** * diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index df85b53a674f..5e0449106091 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -413,6 +413,7 @@ struct acpi_handler_info { void *context; /* Context to be passed to handler */ struct acpi_namespace_node *method_node; /* Method node for this GPE level (saved) */ u8 orig_flags; /* Original misc info about this GPE */ + u8 orig_enabled; /* Set if the GPE was originally enabled */ }; union acpi_gpe_dispatch_info { @@ -457,6 +458,7 @@ struct acpi_gpe_block_info { u32 register_count; /* Number of register pairs in block */ u16 gpe_count; /* Number of individual GPEs in block */ u8 block_base_number; /* Base GPE number for this block */ + u8 initialized; /* If set, the GPE block has been initialized */ }; /* Information about GPE interrupt handlers, one per each interrupt level used for GPEs */ @@ -473,7 +475,6 @@ struct acpi_gpe_walk_info { struct acpi_gpe_block_info *gpe_block; u16 count; acpi_owner_id owner_id; - u8 enable_this_gpe; u8 execute_by_owner_id; }; diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c index 303618889da0..c61c3039c31a 100644 --- a/drivers/acpi/acpica/evevent.c +++ b/drivers/acpi/acpica/evevent.c @@ -93,47 +93,6 @@ acpi_status acpi_ev_initialize_events(void) return_ACPI_STATUS(status); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_install_fadt_gpes - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks - * (0 and 1). The HW must be fully initialized at this point, - * including global lock support. - * - ******************************************************************************/ - -acpi_status acpi_ev_install_fadt_gpes(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_install_fadt_gpes); - - /* Namespace must be locked */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* FADT GPE Block 0 */ - - (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, - acpi_gbl_gpe_fadt_blocks[0]); - - /* FADT GPE Block 1 */ - - (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device, - acpi_gbl_gpe_fadt_blocks[1]); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(AE_OK); -} - /******************************************************************************* * * FUNCTION: acpi_ev_install_xrupt_handlers diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 85445fb5844e..020add3eee1c 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -363,6 +363,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH); gpe_block->register_count = register_count; gpe_block->block_base_number = gpe_block_base_number; + gpe_block->initialized = FALSE; ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address, sizeof(struct acpi_generic_address)); @@ -385,11 +386,12 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, return_ACPI_STATUS(status); } + acpi_all_gpes_initialized = FALSE; + /* Find all GPE methods (_Lxx or_Exx) for this block */ walk_info.gpe_block = gpe_block; walk_info.gpe_device = gpe_device; - walk_info.enable_this_gpe = FALSE; walk_info.execute_by_owner_id = FALSE; status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, @@ -434,35 +436,34 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, ******************************************************************************/ acpi_status -acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_gpe_block_info *gpe_block) +acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *ignored) { acpi_status status; struct acpi_gpe_event_info *gpe_event_info; u32 gpe_enabled_count; u32 gpe_index; - u32 gpe_number; u32 i; u32 j; ACPI_FUNCTION_TRACE(ev_initialize_gpe_block); - /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */ - - if (!gpe_block) { + /* + * Ignore a null GPE block (e.g., if no GPE block 1 exists) and + * GPE blocks that have been initialized already. + */ + if (!gpe_block || gpe_block->initialized) { return_ACPI_STATUS(AE_OK); } /* - * Enable all GPEs that have a corresponding method. Any other GPEs - * within this block must be enabled via the acpi_enable_gpe interface. + * Enable all GPEs that have a corresponding method and have the + * ACPI_GPE_CAN_WAKE flag unset. Any other GPEs within this block must + * be enabled via the acpi_enable_gpe() interface. */ gpe_enabled_count = 0; - if (gpe_device == acpi_gbl_fadt_gpe_device) { - gpe_device = NULL; - } - for (i = 0; i < gpe_block->register_count; i++) { for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { @@ -470,27 +471,19 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; gpe_event_info = &gpe_block->event_info[gpe_index]; - gpe_number = gpe_index + gpe_block->block_base_number; /* Ignore GPEs that have no corresponding _Lxx/_Exx method */ - if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)) { + if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD) + || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { continue; } - /* - * If the GPE has already been enabled for runtime - * signaling, make sure it remains enabled, but do not - * increment its reference counter. - */ - status = gpe_event_info->runtime_count ? - acpi_ev_enable_gpe(gpe_event_info) : - acpi_enable_gpe(gpe_device, gpe_number); - + status = acpi_raw_enable_gpe(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Could not enable GPE 0x%02X", - gpe_number)); + "Could not enable GPE 0x%02X", + gpe_index + gpe_block->block_base_number)); continue; } @@ -504,5 +497,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, gpe_enabled_count)); } + gpe_block->initialized = TRUE; + return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index 3084c5de1bba..2c7def95f721 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -210,8 +210,7 @@ acpi_status acpi_ev_gpe_initialize(void) * * DESCRIPTION: Check for new GPE methods (_Lxx/_Exx) made available as a * result of a Load() or load_table() operation. If new GPE - * methods have been installed, register the new methods and - * enable and runtime GPEs that are associated with them. + * methods have been installed, register the new methods. * ******************************************************************************/ @@ -239,7 +238,6 @@ void acpi_ev_update_gpes(acpi_owner_id table_owner_id) walk_info.owner_id = table_owner_id; walk_info.execute_by_owner_id = TRUE; walk_info.count = 0; - walk_info.enable_this_gpe = TRUE; /* Walk the interrupt level descriptor list */ @@ -301,8 +299,6 @@ void acpi_ev_update_gpes(acpi_owner_id table_owner_id) * * If walk_info->execute_by_owner_id is TRUE, we only execute examine GPE methods * with that owner. - * If walk_info->enable_this_gpe is TRUE, the GPE that is referred to by a GPE - * method is immediately enabled (Used for Load/load_table operators) * ******************************************************************************/ @@ -315,8 +311,6 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, struct acpi_gpe_walk_info *walk_info = ACPI_CAST_PTR(struct acpi_gpe_walk_info, context); struct acpi_gpe_event_info *gpe_event_info; - struct acpi_namespace_node *gpe_device; - acpi_status status; u32 gpe_number; char name[ACPI_NAME_SIZE + 1]; u8 type; @@ -421,29 +415,6 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, gpe_event_info->flags |= (u8)(type | ACPI_GPE_DISPATCH_METHOD); gpe_event_info->dispatch.method_node = method_node; - /* - * Enable this GPE if requested. This only happens when during the - * execution of a Load or load_table operator. We have found a new - * GPE method and want to immediately enable the GPE if it is a - * runtime GPE. - */ - if (walk_info->enable_this_gpe) { - - walk_info->count++; - gpe_device = walk_info->gpe_device; - - if (gpe_device == acpi_gbl_fadt_gpe_device) { - gpe_device = NULL; - } - - status = acpi_enable_gpe(gpe_device, gpe_number); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not enable GPE 0x%02X", - gpe_number)); - } - } - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Registered GPE method %s as GPE number 0x%.2X\n", name, gpe_number)); diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 14e48add32fa..36af222cac65 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -726,15 +726,16 @@ acpi_install_gpe_handler(acpi_handle gpe_device, (ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* - * If the GPE is associated with a method and it cannot wake up the - * system from sleep states, it was enabled automatically during - * initialization, so it has to be disabled now to avoid spurious - * execution of the handler. + * If the GPE is associated with a method, it might have been enabled + * automatically during initialization, in which case it has to be + * disabled now to avoid spurious execution of the handler. */ if ((handler->orig_flags & ACPI_GPE_DISPATCH_METHOD) - && !(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) + && gpe_event_info->runtime_count) { + handler->orig_enabled = 1; (void)acpi_raw_disable_gpe(gpe_event_info); + } /* Install the handler */ @@ -837,13 +838,13 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, gpe_event_info->flags |= handler->orig_flags; /* - * If the GPE was previously associated with a method and it cannot wake - * up the system from sleep states, it should be enabled at this point - * to restore the post-initialization configuration. + * If the GPE was previously associated with a method and it was + * enabled, it should be enabled at this point to restore the + * post-initialization configuration. */ if ((handler->orig_flags & ACPI_GPE_DISPATCH_METHOD) - && !(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) + && handler->orig_enabled) (void)acpi_raw_enable_gpe(gpe_event_info); /* Now we can free the handler object */ diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index 304825528d48..a1dabe3fd8ae 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -379,21 +379,12 @@ acpi_status acpi_gpe_can_wake(acpi_handle gpe_device, u32 gpe_number) /* Ensure that we have a valid GPE number */ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (!gpe_event_info) { + if (gpe_event_info) { + gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; + } else { status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) { - goto unlock_and_exit; } - gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; - if (gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD) { - (void)acpi_raw_disable_gpe(gpe_event_info); - } - -unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } @@ -651,7 +642,7 @@ acpi_install_gpe_block(acpi_handle gpe_device, struct acpi_generic_address *gpe_block_address, u32 register_count, u32 interrupt_number) { - acpi_status status; + acpi_status status = AE_OK; union acpi_operand_object *obj_desc; struct acpi_namespace_node *node; struct acpi_gpe_block_info *gpe_block; @@ -715,10 +706,6 @@ acpi_install_gpe_block(acpi_handle gpe_device, obj_desc->device.gpe_block = gpe_block; - /* Enable the runtime GPEs in the new block */ - - status = acpi_ev_initialize_gpe_block(node, gpe_block); - unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); @@ -924,3 +911,43 @@ acpi_status acpi_enable_all_runtime_gpes(void) return_ACPI_STATUS(status); } + +/****************************************************************************** + * + * FUNCTION: acpi_update_gpes + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Enable all GPEs that have associated _Lxx or _Exx methods and + * are not pointed to by any device _PRW methods indicating that + * these GPEs are generally intended for system or device wakeup + * (such GPEs have to be enabled directly when the devices whose + * _PRW methods point to them are set up for wakeup signaling). + * + ******************************************************************************/ + +acpi_status acpi_update_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_update_gpes); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } else if (acpi_all_gpes_initialized) { + goto unlock; + } + + status = acpi_ev_walk_gpe_list(acpi_ev_initialize_gpe_block, NULL); + if (ACPI_SUCCESS(status)) { + acpi_all_gpes_initialized = TRUE; + } + +unlock: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 0558747579ef..75faf6790e5e 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -766,6 +766,7 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_gpe_fadt_blocks[0] = NULL; acpi_gbl_gpe_fadt_blocks[1] = NULL; acpi_current_gpe_count = 0; + acpi_all_gpes_initialized = FALSE; /* Global handlers */ diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 7f8cefcb2b32..16cc48c2744b 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -289,19 +289,6 @@ acpi_status acpi_initialize_objects(u32 flags) } } - /* - * Complete the GPE initialization for the GPE blocks defined in the FADT - * (GPE block 0 and 1). - * - * NOTE: Currently, there seems to be no need to run the _REG methods - * before enabling the GPEs. - */ - if (!(flags & ACPI_NO_EVENT_INIT)) { - status = acpi_ev_install_fadt_gpes(); - if (ACPI_FAILURE(status)) - return (status); - } - /* * Empty the caches (delete the cached objects) on the assumption that * the table load filled them up more than they will be at runtime -- diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 3fe29e992be8..44f99bd83741 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -725,6 +725,7 @@ static void dock_notify(acpi_handle handle, u32 event, void *data) complete_dock(ds); dock_event(ds, event, DOCK_EVENT); dock_lock(ds, 1); + acpi_update_gpes(); break; } if (dock_present(ds) || dock_in_progress(ds)) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index b23825ecfa37..f87f04603b68 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1431,6 +1431,7 @@ EXPORT_SYMBOL(acpi_bus_add); int acpi_bus_start(struct acpi_device *device) { struct acpi_bus_ops ops; + int result; if (!device) return -EINVAL; @@ -1438,7 +1439,11 @@ int acpi_bus_start(struct acpi_device *device) memset(&ops, 0, sizeof(ops)); ops.acpi_op_start = 1; - return acpi_bus_scan(device->handle, &ops, NULL); + result = acpi_bus_scan(device->handle, &ops, NULL); + + acpi_update_gpes(); + + return result; } EXPORT_SYMBOL(acpi_bus_start); @@ -1552,6 +1557,8 @@ int __init acpi_scan_init(void) if (result) acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL); + else + acpi_update_gpes(); return result; } -- cgit v1.2.3-70-g09d2 From c5f0231ee6b0441e4c45f461f2b6652b10195494 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 6 Aug 2010 08:57:53 +0800 Subject: ACPICA: Fix acpi_os_read_pci_configuration prototype Prototype in acpiosxf.h had the output value pointer as a (u32 *). Should be a (u64 *). Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/exregion.c | 4 +--- drivers/acpi/osl.c | 8 +++++--- include/acpi/acpiosxf.h | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c index 8819d2ac5aee..de17e10da0ed 100644 --- a/drivers/acpi/acpica/exregion.c +++ b/drivers/acpi/acpica/exregion.c @@ -353,7 +353,6 @@ acpi_ex_pci_config_space_handler(u32 function, acpi_status status = AE_OK; struct acpi_pci_id *pci_id; u16 pci_register; - u32 value32; ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); @@ -381,8 +380,7 @@ acpi_ex_pci_config_space_handler(u32 function, case ACPI_READ: status = acpi_os_read_pci_configuration(pci_id, pci_register, - &value32, bit_width); - *value = value32; + value, bit_width); break; case ACPI_WRITE: diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 65b25a303b86..a351291496ff 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -547,9 +547,10 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) acpi_status acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, - u32 *value, u32 width) + u64 *value, u32 width) { int result, size; + u32 value32; if (!value) return AE_BAD_PARAMETER; @@ -570,7 +571,8 @@ acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, result = raw_pci_read(pci_id->segment, pci_id->bus, PCI_DEVFN(pci_id->device, pci_id->function), - reg, size, value); + reg, size, &value32); + *value = value32; return (result ? AE_ERROR : AE_OK); } @@ -626,7 +628,7 @@ static void acpi_os_derive_pci_id_2(acpi_handle rhandle, /* upper bound */ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &temp); if (ACPI_SUCCESS(status)) { - u32 val; + u64 val; pci_id->device = ACPI_HIWORD(ACPI_LODWORD(temp)); pci_id->function = ACPI_LOWORD(ACPI_LODWORD(temp)); diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 29bf945143e8..5e2257796448 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -223,7 +223,7 @@ acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width); */ acpi_status acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id, - u32 reg, u32 *value, u32 width); + u32 reg, u64 *value, u32 width); acpi_status acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id, -- cgit v1.2.3-70-g09d2 From 09387b43153953006471dbb06ece6bf779d10937 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 6 Aug 2010 09:09:33 +0800 Subject: ACPICA: Revert "Revert "Enable multi-byte EC transfers This reverts commit f23b9c7(http://git.moblin.org/cgit.cgi/acpica/commit/?id=f23b9c7) The problem with this change was determined to be a problem with the FreeBSD host OSL (OS services layer), not with this patch itself. Therefore, re-introducing this change into the main ACPICA code. See ACPICA bugzilla 863. http://www.acpica.org/bugzilla/show_bug.cgi?id=863 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/acobject.h | 2 +- drivers/acpi/acpica/exfldio.c | 75 ++++++++++++++++++++++++++++-------------- drivers/acpi/acpica/exprep.c | 45 +++++++++++++------------ 3 files changed, 73 insertions(+), 49 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index 54857fa87aaf..bdbfaf22bd14 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -248,7 +248,7 @@ ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO}; u32 base_byte_offset; /* Byte offset within containing object */\ u32 value; /* Value to store into the Bank or Index register */\ u8 start_field_bit_offset;/* Bit offset within first field datum (0-63) */\ - u8 access_bit_width; /* Read/Write size in bits (8-64) */ + struct acpi_object_field_common { /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */ diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index 047217303a4b..38293fd3e088 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -119,8 +119,8 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } /* - * Exit now for SMBus or IPMI address space, it has a non-linear address space - * and the request cannot be directly validated + * Exit now for SMBus or IPMI address space, it has a non-linear + * address space and the request cannot be directly validated */ if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS || rgn_desc->region.space_id == ACPI_ADR_SPACE_IPMI) { @@ -147,8 +147,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * (Region length is specified in bytes) */ if (rgn_desc->region.length < - (obj_desc->common_field.base_byte_offset + - field_datum_byte_offset + + (obj_desc->common_field.base_byte_offset + field_datum_byte_offset + obj_desc->common_field.access_byte_width)) { if (acpi_gbl_enable_interpreter_slack) { /* @@ -680,6 +679,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, u32 buffer_tail_bits; u32 datum_count; u32 field_datum_count; + u32 access_bit_width; u32 i; ACPI_FUNCTION_TRACE(ex_extract_from_field); @@ -694,16 +694,36 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, return_ACPI_STATUS(AE_BUFFER_OVERFLOW); } + ACPI_MEMSET(buffer, 0, buffer_length); + access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width); + + /* Handle the simple case here */ + + if ((obj_desc->common_field.start_field_bit_offset == 0) && + (obj_desc->common_field.bit_length == access_bit_width)) { + status = acpi_ex_field_datum_io(obj_desc, 0, buffer, ACPI_READ); + return_ACPI_STATUS(status); + } + +/* TBD: Move to common setup code */ + + /* Field algorithm is limited to sizeof(u64), truncate if needed */ + + if (obj_desc->common_field.access_byte_width > sizeof(u64)) { + obj_desc->common_field.access_byte_width = sizeof(u64); + access_bit_width = sizeof(u64) * 8; + } /* Compute the number of datums (access width data items) */ - datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); + datum_count = + ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + access_bit_width); + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + obj_desc->common_field. start_field_bit_offset, - obj_desc->common_field. access_bit_width); /* Priming read from the field */ @@ -738,12 +758,11 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, * This avoids the differences in behavior between different compilers * concerning shift values larger than the target data width. */ - if ((obj_desc->common_field.access_bit_width - - obj_desc->common_field.start_field_bit_offset) < + if (access_bit_width - + obj_desc->common_field.start_field_bit_offset < ACPI_INTEGER_BIT_SIZE) { merged_datum |= - raw_datum << (obj_desc->common_field. - access_bit_width - + raw_datum << (access_bit_width - obj_desc->common_field. start_field_bit_offset); } @@ -765,8 +784,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, /* Mask off any extra bits in the last datum */ - buffer_tail_bits = obj_desc->common_field.bit_length % - obj_desc->common_field.access_bit_width; + buffer_tail_bits = obj_desc->common_field.bit_length % access_bit_width; if (buffer_tail_bits) { merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); } @@ -798,6 +816,7 @@ acpi_status acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, void *buffer, u32 buffer_length) { + void *new_buffer; acpi_status status; u64 mask; u64 width_mask; @@ -808,9 +827,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, u32 buffer_tail_bits; u32 datum_count; u32 field_datum_count; - u32 i; + u32 access_bit_width; u32 required_length; - void *new_buffer; + u32 i; ACPI_FUNCTION_TRACE(ex_insert_into_field); @@ -844,17 +863,24 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, buffer_length = required_length; } +/* TBD: Move to common setup code */ + + /* Algo is limited to sizeof(u64), so cut the access_byte_width */ + if (obj_desc->common_field.access_byte_width > sizeof(u64)) { + obj_desc->common_field.access_byte_width = sizeof(u64); + } + + access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width); + /* * Create the bitmasks used for bit insertion. * Note: This if/else is used to bypass compiler differences with the * shift operator */ - if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) { + if (access_bit_width == ACPI_INTEGER_BIT_SIZE) { width_mask = ACPI_UINT64_MAX; } else { - width_mask = - ACPI_MASK_BITS_ABOVE(obj_desc->common_field. - access_bit_width); + width_mask = ACPI_MASK_BITS_ABOVE(access_bit_width); } mask = width_mask & @@ -863,12 +889,11 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Compute the number of datums (access width data items) */ datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); + access_bit_width); field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + obj_desc->common_field. start_field_bit_offset, - obj_desc->common_field. access_bit_width); /* Get initial Datum from the input buffer */ @@ -905,12 +930,11 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, * This avoids the differences in behavior between different compilers * concerning shift values larger than the target data width. */ - if ((obj_desc->common_field.access_bit_width - + if ((access_bit_width - obj_desc->common_field.start_field_bit_offset) < ACPI_INTEGER_BIT_SIZE) { merged_datum = - raw_datum >> (obj_desc->common_field. - access_bit_width - + raw_datum >> (access_bit_width - obj_desc->common_field. start_field_bit_offset); } else { @@ -929,6 +953,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset, ACPI_MIN(obj_desc->common_field.access_byte_width, buffer_length - buffer_offset)); + merged_datum |= raw_datum << obj_desc->common_field.start_field_bit_offset; } @@ -937,7 +962,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, buffer_tail_bits = (obj_desc->common_field.bit_length + obj_desc->common_field.start_field_bit_offset) % - obj_desc->common_field.access_bit_width; + access_bit_width; if (buffer_tail_bits) { mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); } diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c index 98a331d2249b..7aae29f73d3f 100644 --- a/drivers/acpi/acpica/exprep.c +++ b/drivers/acpi/acpica/exprep.c @@ -355,12 +355,10 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc, return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } - /* Setup width (access granularity) fields */ + /* Setup width (access granularity) fields (values are: 1, 2, 4, 8) */ obj_desc->common_field.access_byte_width = (u8) - ACPI_DIV_8(access_bit_width); /* 1, 2, 4, 8 */ - - obj_desc->common_field.access_bit_width = (u8) access_bit_width; + ACPI_DIV_8(access_bit_width); /* * base_byte_offset is the address of the start of the field within the @@ -405,8 +403,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) { union acpi_operand_object *obj_desc; union acpi_operand_object *second_desc = NULL; - u32 type; acpi_status status; + u32 access_byte_width; + u32 type; ACPI_FUNCTION_TRACE(ex_prep_field_value); @@ -421,8 +420,8 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) type = acpi_ns_get_type(info->region_node); if (type != ACPI_TYPE_REGION) { ACPI_ERROR((AE_INFO, - "Needed Region, found type 0x%X (%s)", - type, acpi_ut_get_type_name(type))); + "Needed Region, found type 0x%X (%s)", type, + acpi_ut_get_type_name(type))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } @@ -438,7 +437,8 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) /* Initialize areas of the object that are common to all fields */ obj_desc->common_field.node = info->field_node; - status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags, + status = acpi_ex_prep_common_field_object(obj_desc, + info->field_flags, info->attribute, info->field_bit_position, info->field_bit_length); @@ -455,26 +455,25 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) obj_desc->field.region_obj = acpi_ns_get_attached_object(info->region_node); - /* An additional reference for the container */ + /* Allow full data read from EC address space */ - acpi_ut_add_reference(obj_desc->field.region_obj); + if ((obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_EC) + && (obj_desc->common_field.bit_length > 8)) { + access_byte_width = + ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field. + bit_length); + + /* Maximum byte width supported is 255 */ - /* allow full data read from EC address space */ - if (obj_desc->field.region_obj->region.space_id == - ACPI_ADR_SPACE_EC) { - if (obj_desc->common_field.bit_length > 8) { - unsigned width = - ACPI_ROUND_BITS_UP_TO_BYTES( - obj_desc->common_field.bit_length); - // access_bit_width is u8, don't overflow it - if (width > 8) - width = 8; + if (access_byte_width < 256) { obj_desc->common_field.access_byte_width = - width; - obj_desc->common_field.access_bit_width = - 8 * width; + (u8)access_byte_width; } } + /* An additional reference for the container */ + + acpi_ut_add_reference(obj_desc->field.region_obj); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", -- cgit v1.2.3-70-g09d2 From b0ed7a915abac309fcb5a51bccd3782e3daa7417 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Fri, 6 Aug 2010 09:35:51 +0800 Subject: ACPICA/ACPI: Add new host interfaces for _OSI support Adds install/remove interfaces so that the host can dynamically alter the global _OSI table. Also adds support for _OSI handlers. Additional support: new debugger command (osi), and test support in the acpiexec utility. Adds new file, utilities/utosi.c. ACPICA bugzilla 836. The Linux OSL _OSI code is also changed. acpi_osi_setup can't call acpi_install/remove_interface because ACPICA is not initialized yet at this early time. So we just save the osi string in acpi_osi_setup and will handle it later in a new function acpi_osi_setup_late. http://www.acpica.org/bugzilla/show_bug.cgi?id=836 Signed-off-by: Lin Ming Signed-off-by: Bob Moore --- drivers/acpi/acpica/Makefile | 3 +- drivers/acpi/acpica/acdebug.h | 2 + drivers/acpi/acpica/acglobal.h | 6 + drivers/acpi/acpica/aclocal.h | 5 + drivers/acpi/acpica/acutils.h | 17 +- drivers/acpi/acpica/uteval.c | 147 ---------------- drivers/acpi/acpica/utglobal.c | 2 + drivers/acpi/acpica/utinit.c | 4 + drivers/acpi/acpica/utmutex.c | 8 + drivers/acpi/acpica/utosi.c | 379 +++++++++++++++++++++++++++++++++++++++++ drivers/acpi/acpica/utxface.c | 125 +++++++++++++- drivers/acpi/osl.c | 88 +++++----- include/acpi/acpiosxf.h | 3 - include/acpi/acpixf.h | 6 + include/acpi/actypes.h | 3 + 15 files changed, 602 insertions(+), 196 deletions(-) create mode 100644 drivers/acpi/acpica/utosi.c (limited to 'drivers') diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index d93cc06f4bf8..262903e98196 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -44,4 +44,5 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ - utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o + utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o \ + utosi.o diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index 48faf3eba9fb..72e9d5eb083c 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -105,6 +105,8 @@ void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg); acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg); +void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg); + acpi_status acpi_db_find_name_in_namespace(char *name_arg); void acpi_db_set_scope(char *name); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 1d192142c691..fe50f57d4e42 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -187,6 +187,10 @@ ACPI_EXTERN u8 acpi_gbl_integer_bit_width; ACPI_EXTERN u8 acpi_gbl_integer_byte_width; ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; +/* Mutex for _OSI support */ + +ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex; + /* Reader/Writer lock is used for namespace walk and dynamic table unload */ ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; @@ -255,6 +259,7 @@ ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler; ACPI_EXTERN void *acpi_gbl_table_handler_context; ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; +ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; /* Owner ID support */ @@ -275,6 +280,7 @@ ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; ACPI_EXTERN u8 acpi_gbl_events_initialized; ACPI_EXTERN u8 acpi_gbl_system_awake_and_running; ACPI_EXTERN u8 acpi_gbl_osi_data; +ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; #ifndef DEFINE_ACPI_GLOBALS diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index df85b53a674f..53f7512b060f 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -914,9 +914,14 @@ struct acpi_bit_register_info { struct acpi_interface_info { char *name; + struct acpi_interface_info *next; + u8 flags; u8 value; }; +#define ACPI_OSI_INVALID 0x01 +#define ACPI_OSI_DYNAMIC 0x02 + struct acpi_port_info { char *name; u16 start; diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 35df755251ce..78e01211c7a1 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -312,8 +312,6 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list); /* * uteval - object evaluation */ -acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state); - acpi_status acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, char *path, @@ -394,6 +392,21 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size); acpi_status acpi_ut_get_object_size(union acpi_operand_object *obj, acpi_size * obj_length); +/* + * utosi - Support for the _OSI predefined control method + */ +acpi_status acpi_ut_initialize_interfaces(void); + +void acpi_ut_interface_terminate(void); + +acpi_status acpi_ut_install_interface(acpi_string interface_name); + +acpi_status acpi_ut_remove_interface(acpi_string interface_name); + +struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name); + +acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state); + /* * utstate - Generic state creation/cache routines */ diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index 6dfdeb653490..22f59ef604e0 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -48,153 +48,6 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("uteval") -/* - * Strings supported by the _OSI predefined (internal) method. - * - * March 2009: Removed "Linux" as this host no longer wants to respond true - * for this string. Basically, the only safe OS strings are windows-related - * and in many or most cases represent the only test path within the - * BIOS-provided ASL code. - * - * The second element of each entry is used to track the newest version of - * Windows that the BIOS has requested. - */ -static struct acpi_interface_info acpi_interfaces_supported[] = { - /* Operating System Vendor Strings */ - - {"Windows 2000", ACPI_OSI_WIN_2000}, /* Windows 2000 */ - {"Windows 2001", ACPI_OSI_WIN_XP}, /* Windows XP */ - {"Windows 2001 SP1", ACPI_OSI_WIN_XP_SP1}, /* Windows XP SP1 */ - {"Windows 2001.1", ACPI_OSI_WINSRV_2003}, /* Windows Server 2003 */ - {"Windows 2001 SP2", ACPI_OSI_WIN_XP_SP2}, /* Windows XP SP2 */ - {"Windows 2001.1 SP1", ACPI_OSI_WINSRV_2003_SP1}, /* Windows Server 2003 SP1 - Added 03/2006 */ - {"Windows 2006", ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */ - {"Windows 2006.1", ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */ - {"Windows 2006 SP1", ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */ - {"Windows 2009", ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ - - /* Feature Group Strings */ - - {"Extended Address Space Descriptor", 0} - - /* - * All "optional" feature group strings (features that are implemented - * by the host) should be implemented in the host version of - * acpi_os_validate_interface and should not be added here. - */ -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_osi_implementation - * - * PARAMETERS: walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Implementation of the _OSI predefined control method - * - ******************************************************************************/ - -acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *string_desc; - union acpi_operand_object *return_desc; - u32 return_value; - u32 i; - - ACPI_FUNCTION_TRACE(ut_osi_implementation); - - /* Validate the string input argument */ - - string_desc = walk_state->arguments[0].object; - if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) { - return_ACPI_STATUS(AE_TYPE); - } - - /* Create a return object */ - - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!return_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Default return value is 0, NOT SUPPORTED */ - - return_value = 0; - - /* Compare input string to static table of supported interfaces */ - - for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { - if (!ACPI_STRCMP(string_desc->string.pointer, - acpi_interfaces_supported[i].name)) { - /* - * The interface is supported. - * Update the osi_data if necessary. We keep track of the latest - * version of Windows that has been requested by the BIOS. - */ - if (acpi_interfaces_supported[i].value > - acpi_gbl_osi_data) { - acpi_gbl_osi_data = - acpi_interfaces_supported[i].value; - } - - return_value = ACPI_UINT32_MAX; - goto exit; - } - } - - /* - * Did not match the string in the static table, call the host OSL to - * check for a match with one of the optional strings (such as - * "Module Device", "3.0 Thermal Model", etc.) - */ - status = acpi_os_validate_interface(string_desc->string.pointer); - if (ACPI_SUCCESS(status)) { - - /* The interface is supported */ - - return_value = ACPI_UINT32_MAX; - } - -exit: - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, - "ACPI: BIOS _OSI(%s) is %ssupported\n", - string_desc->string.pointer, return_value == 0 ? "not " : "")); - - /* Complete the return value */ - - return_desc->integer.value = return_value; - walk_state->return_desc = return_desc; - return_ACPI_STATUS (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_osi_invalidate - * - * PARAMETERS: interface_string - * - * RETURN: Status - * - * DESCRIPTION: invalidate string in pre-defiend _OSI string list - * - ******************************************************************************/ - -acpi_status acpi_osi_invalidate(char *interface) -{ - int i; - - for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { - if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i].name)) { - *acpi_interfaces_supported[i].name = '\0'; - return AE_OK; - } - } - return AE_NOT_FOUND; -} - /******************************************************************************* * * FUNCTION: acpi_ut_evaluate_object diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 0558747579ef..45f63340ca5f 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -774,6 +774,7 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_exception_handler = NULL; acpi_gbl_init_handler = NULL; acpi_gbl_table_handler = NULL; + acpi_gbl_interface_handler = NULL; /* Global Lock support */ @@ -800,6 +801,7 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_debugger_configuration = DEBUGGER_THREADING; acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; acpi_gbl_osi_data = 0; + acpi_gbl_osi_mutex = NULL; /* Hardware oriented */ diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index a39c93dac719..c1b1c803ea9b 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -117,6 +117,10 @@ void acpi_ut_subsystem_shutdown(void) /* Close the acpi_event Handling */ acpi_ev_terminate(); + + /* Delete any dynamic _OSI interfaces */ + + acpi_ut_interface_terminate(); #endif /* Close the Namespace */ diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index f5cca3a1300c..b07b425e2113 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -86,6 +86,12 @@ acpi_status acpi_ut_mutex_initialize(void) spin_lock_init(acpi_gbl_gpe_lock); spin_lock_init(acpi_gbl_hardware_lock); + /* Mutex for _OSI support */ + status = acpi_os_create_mutex(&acpi_gbl_osi_mutex); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + /* Create the reader/writer lock for namespace access */ status = acpi_ut_create_rw_lock(&acpi_gbl_namespace_rw_lock); @@ -117,6 +123,8 @@ void acpi_ut_mutex_terminate(void) acpi_ut_delete_mutex(i); } + acpi_os_delete_mutex(acpi_gbl_osi_mutex); + /* Delete the spinlocks */ acpi_os_delete_lock(acpi_gbl_gpe_lock); diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c new file mode 100644 index 000000000000..0a37950c96aa --- /dev/null +++ b/drivers/acpi/acpica/utosi.c @@ -0,0 +1,379 @@ +/****************************************************************************** + * + * Module Name: utosi - Support for the _OSI predefined control method + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include "accommon.h" + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utosi") + +/* + * Strings supported by the _OSI predefined control method (which is + * implemented internally within this module.) + * + * March 2009: Removed "Linux" as this host no longer wants to respond true + * for this string. Basically, the only safe OS strings are windows-related + * and in many or most cases represent the only test path within the + * BIOS-provided ASL code. + * + * The last element of each entry is used to track the newest version of + * Windows that the BIOS has requested. + */ +static struct acpi_interface_info acpi_default_supported_interfaces[] = { + /* Operating System Vendor Strings */ + + {"Windows 2000", NULL, 0, ACPI_OSI_WIN_2000}, /* Windows 2000 */ + {"Windows 2001", NULL, 0, ACPI_OSI_WIN_XP}, /* Windows XP */ + {"Windows 2001 SP1", NULL, 0, ACPI_OSI_WIN_XP_SP1}, /* Windows XP SP1 */ + {"Windows 2001.1", NULL, 0, ACPI_OSI_WINSRV_2003}, /* Windows Server 2003 */ + {"Windows 2001 SP2", NULL, 0, ACPI_OSI_WIN_XP_SP2}, /* Windows XP SP2 */ + {"Windows 2001.1 SP1", NULL, 0, ACPI_OSI_WINSRV_2003_SP1}, /* Windows Server 2003 SP1 - Added 03/2006 */ + {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */ + {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */ + {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */ + {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ + + /* Feature Group Strings */ + + {"Extended Address Space Descriptor", NULL, 0, 0} + + /* + * All "optional" feature group strings (features that are implemented + * by the host) should be dynamically added by the host via + * acpi_install_interface and should not be manually added here. + * + * Examples of optional feature group strings: + * + * "Module Device" + * "Processor Device" + * "3.0 Thermal Model" + * "3.0 _SCP Extensions" + * "Processor Aggregator Device" + */ +}; + +/******************************************************************************* + * + * FUNCTION: acpi_ut_initialize_interfaces + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Initialize the global _OSI supported interfaces list + * + ******************************************************************************/ + +acpi_status acpi_ut_initialize_interfaces(void) +{ + u32 i; + + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + acpi_gbl_supported_interfaces = acpi_default_supported_interfaces; + + /* Link the static list of supported interfaces */ + + for (i = 0; + i < (ACPI_ARRAY_LENGTH(acpi_default_supported_interfaces) - 1); + i++) { + acpi_default_supported_interfaces[i].next = + &acpi_default_supported_interfaces[(acpi_size) i + 1]; + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_interface_terminate + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Delete all interfaces in the global list. Sets + * acpi_gbl_supported_interfaces to NULL. + * + ******************************************************************************/ + +void acpi_ut_interface_terminate(void) +{ + struct acpi_interface_info *next_interface; + + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + next_interface = acpi_gbl_supported_interfaces; + + while (next_interface) { + acpi_gbl_supported_interfaces = next_interface->next; + + /* Only interfaces added at runtime can be freed */ + + if (next_interface->flags & ACPI_OSI_DYNAMIC) { + ACPI_FREE(next_interface->name); + ACPI_FREE(next_interface); + } + + next_interface = acpi_gbl_supported_interfaces; + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_install_interface + * + * PARAMETERS: interface_name - The interface to install + * + * RETURN: Status + * + * DESCRIPTION: Install the interface into the global interface list. + * Caller MUST hold acpi_gbl_osi_mutex + * + ******************************************************************************/ + +acpi_status acpi_ut_install_interface(acpi_string interface_name) +{ + struct acpi_interface_info *interface_info; + + /* Allocate info block and space for the name string */ + + interface_info = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_interface_info)); + if (!interface_info) { + return (AE_NO_MEMORY); + } + + interface_info->name = + ACPI_ALLOCATE_ZEROED(ACPI_STRLEN(interface_name) + 1); + if (!interface_info->name) { + ACPI_FREE(interface_info); + return (AE_NO_MEMORY); + } + + /* Initialize new info and insert at the head of the global list */ + + ACPI_STRCPY(interface_info->name, interface_name); + interface_info->flags = ACPI_OSI_DYNAMIC; + interface_info->next = acpi_gbl_supported_interfaces; + + acpi_gbl_supported_interfaces = interface_info; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_remove_interface + * + * PARAMETERS: interface_name - The interface to remove + * + * RETURN: Status + * + * DESCRIPTION: Remove the interface from the global interface list. + * Caller MUST hold acpi_gbl_osi_mutex + * + ******************************************************************************/ + +acpi_status acpi_ut_remove_interface(acpi_string interface_name) +{ + struct acpi_interface_info *previous_interface; + struct acpi_interface_info *next_interface; + + previous_interface = next_interface = acpi_gbl_supported_interfaces; + while (next_interface) { + if (!ACPI_STRCMP(interface_name, next_interface->name)) { + + /* Found: name is in either the static list or was added at runtime */ + + if (next_interface->flags & ACPI_OSI_DYNAMIC) { + + /* Interface was added dynamically, remove and free it */ + + if (previous_interface == next_interface) { + acpi_gbl_supported_interfaces = + next_interface->next; + } else { + previous_interface->next = + next_interface->next; + } + + ACPI_FREE(next_interface->name); + ACPI_FREE(next_interface); + } else { + /* + * Interface is in static list. If marked invalid, then it + * does not actually exist. Else, mark it invalid. + */ + if (next_interface->flags & ACPI_OSI_INVALID) { + return (AE_NOT_EXIST); + } + + next_interface->flags |= ACPI_OSI_INVALID; + } + + return (AE_OK); + } + + previous_interface = next_interface; + next_interface = next_interface->next; + } + + /* Interface was not found */ + + return (AE_NOT_EXIST); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_get_interface + * + * PARAMETERS: interface_name - The interface to find + * + * RETURN: struct acpi_interface_info if found. NULL if not found. + * + * DESCRIPTION: Search for the specified interface name in the global list. + * Caller MUST hold acpi_gbl_osi_mutex + * + ******************************************************************************/ + +struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name) +{ + struct acpi_interface_info *next_interface; + + next_interface = acpi_gbl_supported_interfaces; + while (next_interface) { + if (!ACPI_STRCMP(interface_name, next_interface->name)) { + return (next_interface); + } + + next_interface = next_interface->next; + } + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_osi_implementation + * + * PARAMETERS: walk_state - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Implementation of the _OSI predefined control method. When + * an invocation of _OSI is encountered in the system AML, + * control is transferred to this function. + * + ******************************************************************************/ + +acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state) +{ + union acpi_operand_object *string_desc; + union acpi_operand_object *return_desc; + struct acpi_interface_info *interface_info; + acpi_interface_handler interface_handler; + u32 return_value; + + ACPI_FUNCTION_TRACE(ut_osi_implementation); + + /* Validate the string input argument (from the AML caller) */ + + string_desc = walk_state->arguments[0].object; + if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) { + return_ACPI_STATUS(AE_TYPE); + } + + /* Create a return object */ + + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!return_desc) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Default return value is 0, NOT SUPPORTED */ + + return_value = 0; + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + + /* Lookup the interface in the global _OSI list */ + + interface_info = acpi_ut_get_interface(string_desc->string.pointer); + if (interface_info && !(interface_info->flags & ACPI_OSI_INVALID)) { + /* + * The interface is supported. + * Update the osi_data if necessary. We keep track of the latest + * version of Windows that has been requested by the BIOS. + */ + if (interface_info->value > acpi_gbl_osi_data) { + acpi_gbl_osi_data = interface_info->value; + } + + return_value = ACPI_UINT32_MAX; + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + + /* + * Invoke an optional _OSI interface handler. The host OS may wish + * to do some interface-specific handling. For example, warn about + * certain interfaces or override the true/false support value. + */ + interface_handler = acpi_gbl_interface_handler; + if (interface_handler) { + return_value = + interface_handler(string_desc->string.pointer, + return_value); + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO, + "ACPI: BIOS _OSI(\"%s\") is %ssupported\n", + string_desc->string.pointer, + return_value == 0 ? "not " : "")); + + /* Complete the return object */ + + return_desc->integer.value = return_value; + walk_state->return_desc = return_desc; + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 7f8cefcb2b32..c2da90f5fbe9 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -110,6 +110,15 @@ acpi_status __init acpi_initialize_subsystem(void) return_ACPI_STATUS(status); } + /* Initialize the global OSI interfaces list with the static names */ + + status = acpi_ut_initialize_interfaces(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During OSI interfaces initialization")); + return_ACPI_STATUS(status); + } + /* If configured, initialize the AML debugger */ ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); @@ -506,6 +515,7 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function) ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) #endif /* ACPI_FUTURE_USAGE */ + /***************************************************************************** * * FUNCTION: acpi_purge_cached_objects @@ -529,4 +539,117 @@ acpi_status acpi_purge_cached_objects(void) } ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) -#endif + +/***************************************************************************** + * + * FUNCTION: acpi_install_interface + * + * PARAMETERS: interface_name - The interface to install + * + * RETURN: Status + * + * DESCRIPTION: Install an _OSI interface to the global list + * + ****************************************************************************/ +acpi_status acpi_install_interface(acpi_string interface_name) +{ + acpi_status status; + struct acpi_interface_info *interface_info; + + /* Parameter validation */ + + if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) { + return (AE_BAD_PARAMETER); + } + + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + + /* Check if the interface name is already in the global list */ + + interface_info = acpi_ut_get_interface(interface_name); + if (interface_info) { + /* + * The interface already exists in the list. This is OK if the + * interface has been marked invalid -- just clear the bit. + */ + if (interface_info->flags & ACPI_OSI_INVALID) { + interface_info->flags &= ~ACPI_OSI_INVALID; + status = AE_OK; + } else { + status = AE_ALREADY_EXISTS; + } + } else { + /* New interface name, install into the global list */ + + status = acpi_ut_install_interface(interface_name); + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_interface) + +/***************************************************************************** + * + * FUNCTION: acpi_remove_interface + * + * PARAMETERS: interface_name - The interface to remove + * + * RETURN: Status + * + * DESCRIPTION: Remove an _OSI interface from the global list + * + ****************************************************************************/ +acpi_status acpi_remove_interface(acpi_string interface_name) +{ + acpi_status status; + + /* Parameter validation */ + + if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) { + return (AE_BAD_PARAMETER); + } + + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + + status = acpi_ut_remove_interface(interface_name); + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_remove_interface) + +/***************************************************************************** + * + * FUNCTION: acpi_install_interface_handler + * + * PARAMETERS: Handler - The _OSI interface handler to install + * NULL means "remove existing handler" + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for the predefined _OSI ACPI method. + * invoked during execution of the internal implementation of + * _OSI. A NULL handler simply removes any existing handler. + * + ****************************************************************************/ +acpi_status acpi_install_interface_handler(acpi_interface_handler handler) +{ + acpi_status status = AE_OK; + + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + + if (handler && acpi_gbl_interface_handler) { + status = AE_ALREADY_EXISTS; + } else { + acpi_gbl_interface_handler = handler; + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_interface_handler) +#endif /* !ACPI_ASL_COMPILER */ diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index a351291496ff..6652c4929391 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -96,7 +96,9 @@ static LIST_HEAD(resource_list_head); static DEFINE_SPINLOCK(acpi_res_lock); #define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ -static char osi_additional_string[OSI_STRING_LENGTH_MAX]; +static char osi_setup_string[OSI_STRING_LENGTH_MAX]; + +static void __init acpi_osi_setup_late(void); /* * The story of _OSI(Linux) @@ -138,6 +140,20 @@ static struct osi_linux { unsigned int known:1; } osi_linux = { 0, 0, 0, 0}; +static u32 acpi_osi_handler(acpi_string interface, u32 supported) +{ + if (!strcmp("Linux", interface)) { + + printk(KERN_NOTICE PREFIX + "BIOS _OSI(Linux) query %s%s\n", + osi_linux.enable ? "honored" : "ignored", + osi_linux.cmdline ? " via cmdline" : + osi_linux.dmi ? " via DMI" : ""); + } + + return supported; +} + static void __init acpi_request_region (struct acpi_generic_address *addr, unsigned int length, char *desc) { @@ -198,6 +214,8 @@ acpi_status acpi_os_initialize1(void) BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); + acpi_install_interface_handler(acpi_osi_handler); + acpi_osi_setup_late(); return AE_OK; } @@ -979,6 +997,12 @@ static void __init set_osi_linux(unsigned int enable) printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n", enable ? "Add": "Delet"); } + + if (osi_linux.enable) + acpi_osi_setup("Linux"); + else + acpi_osi_setup("!Linux"); + return; } @@ -1013,21 +1037,33 @@ void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) * string starting with '!' disables that string * otherwise string is added to list, augmenting built-in strings */ -int __init acpi_osi_setup(char *str) +static void __init acpi_osi_setup_late(void) { - if (str == NULL || *str == '\0') { - printk(KERN_INFO PREFIX "_OSI method disabled\n"); - acpi_gbl_create_osi_method = FALSE; - } else if (!strcmp("!Linux", str)) { + char *str = osi_setup_string; + + if (*str == '\0') + return; + + if (!strcmp("!Linux", str)) { acpi_cmdline_osi_linux(0); /* !enable */ } else if (*str == '!') { - if (acpi_osi_invalidate(++str) == AE_OK) + if (acpi_remove_interface(++str) == AE_OK) printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); } else if (!strcmp("Linux", str)) { acpi_cmdline_osi_linux(1); /* enable */ - } else if (*osi_additional_string == '\0') { - strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX); - printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); + } else { + if (acpi_install_interface(str) == AE_OK) + printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); + } +} + +int __init acpi_osi_setup(char *str) +{ + if (str == NULL || *str == '\0') { + printk(KERN_INFO PREFIX "_OSI method disabled\n"); + acpi_gbl_create_osi_method = FALSE; + } else { + strncpy(osi_setup_string, str, OSI_STRING_LENGTH_MAX); } return 1; @@ -1284,38 +1320,6 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) return (AE_OK); } -/****************************************************************************** - * - * FUNCTION: acpi_os_validate_interface - * - * PARAMETERS: interface - Requested interface to be validated - * - * RETURN: AE_OK if interface is supported, AE_SUPPORT otherwise - * - * DESCRIPTION: Match an interface string to the interfaces supported by the - * host. Strings originate from an AML call to the _OSI method. - * - *****************************************************************************/ - -acpi_status -acpi_os_validate_interface (char *interface) -{ - if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX)) - return AE_OK; - if (!strcmp("Linux", interface)) { - - printk(KERN_NOTICE PREFIX - "BIOS _OSI(Linux) query %s%s\n", - osi_linux.enable ? "honored" : "ignored", - osi_linux.cmdline ? " via cmdline" : - osi_linux.dmi ? " via DMI" : ""); - - if (osi_linux.enable) - return AE_OK; - } - return AE_SUPPORT; -} - static inline int acpi_res_list_add(struct acpi_res_list *res) { struct acpi_res_list *res_list_elem; diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 5e2257796448..c29b0afc651a 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -239,9 +239,6 @@ acpi_os_derive_pci_id(acpi_handle device, /* * Miscellaneous */ -acpi_status acpi_os_validate_interface(char *interface); -acpi_status acpi_osi_invalidate(char* interface); - acpi_status acpi_os_validate_address(u8 space_id, acpi_physical_address address, acpi_size length, char *name); diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index c0786d446a00..e4d6cc8074e4 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -105,6 +105,10 @@ const char *acpi_format_exception(acpi_status exception); acpi_status acpi_purge_cached_objects(void); +acpi_status acpi_install_interface(acpi_string interface_name); + +acpi_status acpi_remove_interface(acpi_string interface_name); + /* * ACPI Memory management */ @@ -263,6 +267,8 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, acpi_status acpi_install_exception_handler(acpi_exception_handler handler); #endif +acpi_status acpi_install_interface_handler(acpi_interface_handler handler); + /* * Event interfaces */ diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 5db8f472fec9..332d076f3f10 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -950,6 +950,9 @@ acpi_status(*acpi_walk_callback) (acpi_handle object, u32 nesting_level, void *context, void **return_value); +typedef +u32 (*acpi_interface_handler) (acpi_string interface_name, u32 supported); + /* Interrupt handler return values */ #define ACPI_INTERRUPT_NOT_HANDLED 0x00 -- cgit v1.2.3-70-g09d2 From 95abccb576c44bc593e05fa1245d0ad26ce6107b Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 15 Sep 2010 13:22:46 +0800 Subject: ACPICA: Obsolete the acpi_os_derive_pci_id OSL interface This function is not OS-dependent and has been replaced by acpi_hw_derive_pci_id, which is now in the ACPICA core code. Local implementations of acpi_os_derive_pci_id are no longer necessary and are removed. ACPICA BZ 857. http://www.acpica.org/bugzilla/show_bug.cgi?id=857 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/Makefile | 2 +- drivers/acpi/acpica/achware.h | 7 + drivers/acpi/acpica/evrgnini.c | 14 +- drivers/acpi/acpica/hwpci.c | 412 +++++++++++++++++++++++++++++++++++++++++ drivers/acpi/osl.c | 68 ------- include/acpi/acpiosxf.h | 7 - 6 files changed, 430 insertions(+), 80 deletions(-) create mode 100644 drivers/acpi/acpica/hwpci.c (limited to 'drivers') diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 262903e98196..4fdcfdb1618b 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -21,7 +21,7 @@ acpi-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\ excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \ exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o exdebug.o -acpi-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o hwvalid.o +acpi-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o hwvalid.o hwpci.o acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 120b3af56596..e7c5545d8597 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -122,6 +122,13 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, void *context); #ifdef ACPI_FUTURE_USAGE +/* + * hwpci - PCI configuration support + */ +acpi_status +acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, + acpi_handle root_pci_device, acpi_handle pci_region); + /* * hwtimer - ACPI Timer prototypes */ diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index f40d271bf568..0b47a6dc9290 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -289,8 +289,8 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, } /* - * Get the PCI device and function numbers from the _ADR object contained - * in the parent's scope. + * Get the PCI device and function numbers from the _ADR object + * contained in the parent's scope. */ status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node, &pci_value); @@ -320,9 +320,15 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, pci_id->bus = ACPI_LOWORD(pci_value); } - /* Complete this device's pci_id */ + /* Complete/update the PCI ID for this device */ - acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id); + status = + acpi_hw_derive_pci_id(pci_id, pci_root_node, + region_obj->region.node); + if (ACPI_FAILURE(status)) { + ACPI_FREE(pci_id); + return_ACPI_STATUS(status); + } *region_context = pci_id; return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c new file mode 100644 index 000000000000..ad21c7d8bf4f --- /dev/null +++ b/drivers/acpi/acpica/hwpci.c @@ -0,0 +1,412 @@ +/******************************************************************************* + * + * Module Name: hwpci - Obtain PCI bus, device, and function numbers + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include "accommon.h" + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("hwpci") + +/* PCI configuration space values */ +#define PCI_CFG_HEADER_TYPE_REG 0x0E +#define PCI_CFG_PRIMARY_BUS_NUMBER_REG 0x18 +#define PCI_CFG_SECONDARY_BUS_NUMBER_REG 0x19 +/* PCI header values */ +#define PCI_HEADER_TYPE_MASK 0x7F +#define PCI_TYPE_BRIDGE 0x01 +#define PCI_TYPE_CARDBUS_BRIDGE 0x02 +typedef struct acpi_pci_device { + acpi_handle device; + struct acpi_pci_device *next; + +} acpi_pci_device; + +/* Local prototypes */ + +static acpi_status +acpi_hw_build_pci_list(acpi_handle root_pci_device, + acpi_handle pci_region, + struct acpi_pci_device **return_list_head); + +static acpi_status +acpi_hw_process_pci_list(struct acpi_pci_id *pci_id, + struct acpi_pci_device *list_head); + +static void acpi_hw_delete_pci_list(struct acpi_pci_device *list_head); + +static acpi_status +acpi_hw_get_pci_device_info(struct acpi_pci_id *pci_id, + acpi_handle pci_device, + u16 *bus_number, u8 *is_bridge); + +/******************************************************************************* + * + * FUNCTION: acpi_hw_derive_pci_id + * + * PARAMETERS: pci_id - Initial values for the PCI ID. May be + * modified by this function. + * root_pci_device - A handle to a PCI device object. This + * object must be a PCI Root Bridge having a + * _HID value of either PNP0A03 or PNP0A08 + * pci_region - A handle to a PCI configuration space + * Operation Region being initialized + * + * RETURN: Status + * + * DESCRIPTION: This function derives a full PCI ID for a PCI device, + * consisting of a Segment number, Bus number, Device number, + * and function code. + * + * The PCI hardware dynamically configures PCI bus numbers + * depending on the bus topology discovered during system + * initialization. This function is invoked during configuration + * of a PCI_Config Operation Region in order to (possibly) update + * the Bus/Device/Function numbers in the pci_id with the actual + * values as determined by the hardware and operating system + * configuration. + * + * The pci_id parameter is initially populated during the Operation + * Region initialization. This function is then called, and is + * will make any necessary modifications to the Bus, Device, or + * Function number PCI ID subfields as appropriate for the + * current hardware and OS configuration. + * + * NOTE: Created 08/2010. Replaces the previous OSL acpi_os_derive_pci_id + * interface since this feature is OS-independent. This module + * specifically avoids any use of recursion by building a local + * temporary device list. + * + ******************************************************************************/ + +acpi_status +acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, + acpi_handle root_pci_device, acpi_handle pci_region) +{ + acpi_status status; + struct acpi_pci_device *list_head = NULL; + + ACPI_FUNCTION_TRACE(hw_derive_pci_id); + + if (!pci_id) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Build a list of PCI devices, from pci_region up to root_pci_device */ + + status = + acpi_hw_build_pci_list(root_pci_device, pci_region, &list_head); + if (ACPI_SUCCESS(status)) { + + /* Walk the list, updating the PCI device/function/bus numbers */ + + status = acpi_hw_process_pci_list(pci_id, list_head); + } + + /* Always delete the list */ + + acpi_hw_delete_pci_list(list_head); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_build_pci_list + * + * PARAMETERS: root_pci_device - A handle to a PCI device object. This + * object is guaranteed to be a PCI Root + * Bridge having a _HID value of either + * PNP0A03 or PNP0A08 + * pci_region - A handle to the PCI configuration space + * Operation Region + * return_list_head - Where the PCI device list is returned + * + * RETURN: Status + * + * DESCRIPTION: Builds a list of devices from the input PCI region up to the + * Root PCI device for this namespace subtree. + * + ******************************************************************************/ + +static acpi_status +acpi_hw_build_pci_list(acpi_handle root_pci_device, + acpi_handle pci_region, + struct acpi_pci_device **return_list_head) +{ + acpi_handle current_device; + acpi_handle parent_device; + acpi_status status; + struct acpi_pci_device *list_element; + struct acpi_pci_device *list_head = NULL; + + /* + * Ascend namespace branch until the root_pci_device is reached, building + * a list of device nodes. Loop will exit when either the PCI device is + * found, or the root of the namespace is reached. + */ + current_device = pci_region; + while (1) { + status = acpi_get_parent(current_device, &parent_device); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Finished when we reach the PCI root device (PNP0A03 or PNP0A08) */ + + if (parent_device == root_pci_device) { + *return_list_head = list_head; + return (AE_OK); + } + + list_element = ACPI_ALLOCATE(sizeof(struct acpi_pci_device)); + if (!list_element) { + return (AE_NO_MEMORY); + } + + /* Put new element at the head of the list */ + + list_element->next = list_head; + list_element->device = parent_device; + list_head = list_element; + + current_device = parent_device; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_process_pci_list + * + * PARAMETERS: pci_id - Initial values for the PCI ID. May be + * modified by this function. + * list_head - Device list created by + * acpi_hw_build_pci_list + * + * RETURN: Status + * + * DESCRIPTION: Walk downward through the PCI device list, getting the device + * info for each, via the PCI configuration space and updating + * the PCI ID as necessary. Deletes the list during traversal. + * + ******************************************************************************/ + +static acpi_status +acpi_hw_process_pci_list(struct acpi_pci_id *pci_id, + struct acpi_pci_device *list_head) +{ + acpi_status status = AE_OK; + struct acpi_pci_device *info; + u16 bus_number; + u8 is_bridge = TRUE; + + ACPI_FUNCTION_NAME(hw_process_pci_list); + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Input PciId: Seg %4.4X Bus %4.4X Dev %4.4X Func %4.4X\n", + pci_id->segment, pci_id->bus, pci_id->device, + pci_id->function)); + + bus_number = pci_id->bus; + + /* + * Descend down the namespace tree, collecting PCI device, function, + * and bus numbers. bus_number is only important for PCI bridges. + * Algorithm: As we descend the tree, use the last valid PCI device, + * function, and bus numbers that are discovered, and assign them + * to the PCI ID for the target device. + */ + info = list_head; + while (info) { + status = acpi_hw_get_pci_device_info(pci_id, info->device, + &bus_number, &is_bridge); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + info = info->next; + } + + ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, + "Output PciId: Seg %4.4X Bus %4.4X Dev %4.4X Func %4.4X " + "Status %X BusNumber %X IsBridge %X\n", + pci_id->segment, pci_id->bus, pci_id->device, + pci_id->function, status, bus_number, is_bridge)); + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_delete_pci_list + * + * PARAMETERS: list_head - Device list created by + * acpi_hw_build_pci_list + * + * RETURN: None + * + * DESCRIPTION: Free the entire PCI list. + * + ******************************************************************************/ + +static void acpi_hw_delete_pci_list(struct acpi_pci_device *list_head) +{ + struct acpi_pci_device *next; + struct acpi_pci_device *previous; + + next = list_head; + while (next) { + previous = next; + next = previous->next; + ACPI_FREE(previous); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_hw_get_pci_device_info + * + * PARAMETERS: pci_id - Initial values for the PCI ID. May be + * modified by this function. + * pci_device - Handle for the PCI device object + * bus_number - Where a PCI bridge bus number is returned + * is_bridge - Return value, indicates if this PCI + * device is a PCI bridge + * + * RETURN: Status + * + * DESCRIPTION: Get the device info for a single PCI device object. Get the + * _ADR (contains PCI device and function numbers), and for PCI + * bridge devices, get the bus number from PCI configuration + * space. + * + ******************************************************************************/ + +static acpi_status +acpi_hw_get_pci_device_info(struct acpi_pci_id *pci_id, + acpi_handle pci_device, + u16 *bus_number, u8 *is_bridge) +{ + acpi_status status; + acpi_object_type object_type; + u64 return_value; + u64 pci_value; + + /* We only care about objects of type Device */ + + status = acpi_get_type(pci_device, &object_type); + if (ACPI_FAILURE(status)) { + return (status); + } + + if (object_type != ACPI_TYPE_DEVICE) { + return (AE_OK); + } + + /* We need an _ADR. Ignore device if not present */ + + status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, + pci_device, &return_value); + if (ACPI_FAILURE(status)) { + return (AE_OK); + } + + /* + * From _ADR, get the PCI Device and Function and + * update the PCI ID. + */ + pci_id->device = ACPI_HIWORD(ACPI_LODWORD(return_value)); + pci_id->function = ACPI_LOWORD(ACPI_LODWORD(return_value)); + + /* + * If the previous device was a bridge, use the previous + * device bus number + */ + if (*is_bridge) { + pci_id->bus = *bus_number; + } + + /* + * Get the bus numbers from PCI Config space: + * + * First, get the PCI header_type + */ + *is_bridge = FALSE; + status = acpi_os_read_pci_configuration(pci_id, + PCI_CFG_HEADER_TYPE_REG, + &pci_value, 8); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* We only care about bridges (1=pci_bridge, 2=card_bus_bridge) */ + + pci_value &= PCI_HEADER_TYPE_MASK; + + if ((pci_value != PCI_TYPE_BRIDGE) && + (pci_value != PCI_TYPE_CARDBUS_BRIDGE)) { + return (AE_OK); + } + + /* Bridge: Get the Primary bus_number */ + + status = acpi_os_read_pci_configuration(pci_id, + PCI_CFG_PRIMARY_BUS_NUMBER_REG, + &pci_value, 8); + if (ACPI_FAILURE(status)) { + return (status); + } + + *is_bridge = TRUE; + pci_id->bus = (u16)pci_value; + + /* Bridge: Get the Secondary bus_number */ + + status = acpi_os_read_pci_configuration(pci_id, + PCI_CFG_SECONDARY_BUS_NUMBER_REG, + &pci_value, 8); + if (ACPI_FAILURE(status)) { + return (status); + } + + *bus_number = (u16)pci_value; + return (AE_OK); +} diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 6652c4929391..90a8e86e86f5 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -622,74 +622,6 @@ acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, return (result ? AE_ERROR : AE_OK); } -/* TODO: Change code to take advantage of driver model more */ -static void acpi_os_derive_pci_id_2(acpi_handle rhandle, /* upper bound */ - acpi_handle chandle, /* current node */ - struct acpi_pci_id **id, - int *is_bridge, u8 * bus_number) -{ - acpi_handle handle; - struct acpi_pci_id *pci_id = *id; - acpi_status status; - unsigned long long temp; - acpi_object_type type; - - acpi_get_parent(chandle, &handle); - if (handle != rhandle) { - acpi_os_derive_pci_id_2(rhandle, handle, &pci_id, is_bridge, - bus_number); - - status = acpi_get_type(handle, &type); - if ((ACPI_FAILURE(status)) || (type != ACPI_TYPE_DEVICE)) - return; - - status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, - &temp); - if (ACPI_SUCCESS(status)) { - u64 val; - pci_id->device = ACPI_HIWORD(ACPI_LODWORD(temp)); - pci_id->function = ACPI_LOWORD(ACPI_LODWORD(temp)); - - if (*is_bridge) - pci_id->bus = *bus_number; - - /* any nicer way to get bus number of bridge ? */ - status = - acpi_os_read_pci_configuration(pci_id, 0x0e, &val, - 8); - if (ACPI_SUCCESS(status) - && ((val & 0x7f) == 1 || (val & 0x7f) == 2)) { - status = - acpi_os_read_pci_configuration(pci_id, 0x18, - &val, 8); - if (!ACPI_SUCCESS(status)) { - /* Certainly broken... FIX ME */ - return; - } - *is_bridge = 1; - pci_id->bus = val; - status = - acpi_os_read_pci_configuration(pci_id, 0x19, - &val, 8); - if (ACPI_SUCCESS(status)) { - *bus_number = val; - } - } else - *is_bridge = 0; - } - } -} - -void acpi_os_derive_pci_id(acpi_handle rhandle, /* upper bound */ - acpi_handle chandle, /* current node */ - struct acpi_pci_id **id) -{ - int is_bridge = 1; - u8 bus_number = (*id)->bus; - - acpi_os_derive_pci_id_2(rhandle, chandle, id, &is_bridge, &bus_number); -} - static void acpi_os_execute_deferred(struct work_struct *work) { struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index c29b0afc651a..43027432a055 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -229,13 +229,6 @@ acpi_status acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id, u32 reg, u64 value, u32 width); -/* - * Interim function needed for PCI IRQ routing - */ -void -acpi_os_derive_pci_id(acpi_handle device, - acpi_handle region, struct acpi_pci_id **pci_id); - /* * Miscellaneous */ -- cgit v1.2.3-70-g09d2 From 8f40f171a29d0d2ae1ca8bd4a0c3fc9f514d1e20 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Wed, 15 Sep 2010 13:36:55 +0800 Subject: ACPICA: Add ACPI_INLINE configuration parameter The C inline keyword is not standardized, ACPI_INLINE allows this to be configured on a per-compiler basis. Signed-off-by: Lin Ming Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/acpica/tbfadt.c | 4 ++-- include/acpi/platform/acenv.h | 6 ++++++ include/acpi/platform/acgcc.h | 2 ++ 3 files changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 1728cb9bf600..d2ff4325c427 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -49,7 +49,7 @@ ACPI_MODULE_NAME("tbfadt") /* Local prototypes */ -static inline void +static ACPI_INLINE void acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, u8 space_id, u8 byte_width, u64 address); @@ -181,7 +181,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = { * ******************************************************************************/ -static inline void +static ACPI_INLINE void acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, u8 space_id, u8 byte_width, u64 address) { diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h index c05aeba9e8f0..a3e334ab1119 100644 --- a/include/acpi/platform/acenv.h +++ b/include/acpi/platform/acenv.h @@ -193,6 +193,12 @@ #define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE #endif +/* "inline" keywords - configurable since inline is not standardized */ + +#ifndef ACPI_INLINE +#define ACPI_INLINE +#endif + /* * Debugger threading model * Use single threaded if the entire subsystem is contained in an application diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h index 0cd53e3cd1a3..5dcb9537343c 100644 --- a/include/acpi/platform/acgcc.h +++ b/include/acpi/platform/acgcc.h @@ -44,6 +44,8 @@ #ifndef __ACGCC_H__ #define __ACGCC_H__ +#define ACPI_INLINE __inline__ + /* Function name is used for debug output. Non-ANSI, compiler-dependent */ #define ACPI_GET_FUNCTION_NAME __func__ -- cgit v1.2.3-70-g09d2 From 28eb3fcf8762a3b52f4fef5af29dce50d23c7151 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Wed, 15 Sep 2010 13:55:13 +0800 Subject: ACPICA: Make acpi_thread_id no longer configurable, always u64 Change definition of acpi_thread_id to always be a u64. This simplifies the code, especially any printf output. u64 is the only common data type for all thread_id types across all operating systems. We now force the OSL to cast the native thread_id type to u64 before returning the value to ACPICA (via acpi_os_get_thread_id). Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/achware.h | 2 +- drivers/acpi/acpica/aclocal.h | 2 +- drivers/acpi/acpica/dsmethod.c | 2 +- drivers/acpi/acpica/evmisc.c | 2 +- drivers/acpi/acpica/exmutex.c | 10 +++++----- drivers/acpi/acpica/utdebug.c | 7 +++---- drivers/acpi/acpica/utmutex.c | 29 ++++++++++++++++------------- include/acpi/actypes.h | 17 ++++++++++------- include/acpi/platform/aclinux.h | 7 +++---- 9 files changed, 41 insertions(+), 37 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index e7c5545d8597..167470ad2d21 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -121,7 +121,6 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); -#ifdef ACPI_FUTURE_USAGE /* * hwpci - PCI configuration support */ @@ -129,6 +128,7 @@ acpi_status acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device, acpi_handle pci_region); +#ifdef ACPI_FUTURE_USAGE /* * hwtimer - ACPI Timer prototypes */ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 53f7512b060f..04ce32272546 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -1001,7 +1001,7 @@ struct acpi_port_info { struct acpi_db_method_info { acpi_handle main_thread_gate; acpi_handle thread_complete_gate; - u32 *threads; + acpi_thread_id *threads; u32 num_threads; u32 num_created; u32 num_completed; diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 64750ee96e20..d94dd8974b55 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -573,7 +573,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, acpi_os_release_mutex(method_desc->method. mutex->mutex.os_mutex); - method_desc->method.mutex->mutex.thread_id = NULL; + method_desc->method.mutex->mutex.thread_id = 0; } } diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index df0aea9a8cfd..fcaed9fb44ff 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -553,7 +553,7 @@ acpi_status acpi_ev_release_global_lock(void) acpi_gbl_global_lock_acquired = FALSE; /* Release the local GL mutex */ - acpi_ev_global_lock_thread_id = NULL; + acpi_ev_global_lock_thread_id = 0; acpi_ev_global_lock_acquired = 0; acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex); return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index f73be97043c0..6af14e43f839 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c @@ -336,7 +336,7 @@ acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc) /* Clear mutex info */ - obj_desc->mutex.thread_id = NULL; + obj_desc->mutex.thread_id = 0; return_ACPI_STATUS(status); } @@ -393,10 +393,10 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, if ((owner_thread->thread_id != walk_state->thread->thread_id) && (obj_desc != acpi_gbl_global_lock_mutex)) { ACPI_ERROR((AE_INFO, - "Thread %p cannot release Mutex [%4.4s] acquired by thread %p", - ACPI_CAST_PTR(void, walk_state->thread->thread_id), + "Thread %u cannot release Mutex [%4.4s] acquired by thread %u", + (u32)walk_state->thread->thread_id, acpi_ut_get_node_name(obj_desc->mutex.node), - ACPI_CAST_PTR(void, owner_thread->thread_id))); + (u32)owner_thread->thread_id)); return_ACPI_STATUS(AE_AML_NOT_OWNER); } @@ -488,7 +488,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) /* Mark mutex unowned */ obj_desc->mutex.owner_thread = NULL; - obj_desc->mutex.thread_id = NULL; + obj_desc->mutex.thread_id = 0; /* Update Thread sync_level (Last mutex is the important one) */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 983510640059..f21c486929a5 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -179,9 +179,8 @@ acpi_debug_print(u32 requested_debug_level, if (thread_id != acpi_gbl_prev_thread_id) { if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf - ("\n**** Context Switch from TID %p to TID %p ****\n\n", - ACPI_CAST_PTR(void, acpi_gbl_prev_thread_id), - ACPI_CAST_PTR(void, thread_id)); + ("\n**** Context Switch from TID %u to TID %u ****\n\n", + (u32)acpi_gbl_prev_thread_id, (u32)thread_id); } acpi_gbl_prev_thread_id = thread_id; @@ -194,7 +193,7 @@ acpi_debug_print(u32 requested_debug_level, acpi_os_printf("%8s-%04ld ", module_name, line_number); if (ACPI_LV_THREADS & acpi_dbg_level) { - acpi_os_printf("[%p] ", ACPI_CAST_PTR(void, thread_id)); + acpi_os_printf("[%u] ", (u32)thread_id); } acpi_os_printf("[%02ld] %-22.22s: ", diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index b07b425e2113..d9efa495b433 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -228,18 +228,17 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { if (i == mutex_id) { ACPI_ERROR((AE_INFO, - "Mutex [%s] already acquired by this thread [%p]", + "Mutex [%s] already acquired by this thread [%u]", acpi_ut_get_mutex_name (mutex_id), - ACPI_CAST_PTR(void, - this_thread_id))); + (u32)this_thread_id)); return (AE_ALREADY_ACQUIRED); } ACPI_ERROR((AE_INFO, - "Invalid acquire order: Thread %p owns [%s], wants [%s]", - ACPI_CAST_PTR(void, this_thread_id), + "Invalid acquire order: Thread %u owns [%s], wants [%s]", + (u32)this_thread_id, acpi_ut_get_mutex_name(i), acpi_ut_get_mutex_name(mutex_id))); @@ -250,24 +249,24 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) #endif ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, - "Thread %p attempting to acquire Mutex [%s]\n", - ACPI_CAST_PTR(void, this_thread_id), + "Thread %u attempting to acquire Mutex [%s]\n", + (u32)this_thread_id, acpi_ut_get_mutex_name(mutex_id))); status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex, ACPI_WAIT_FOREVER); if (ACPI_SUCCESS(status)) { ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, - "Thread %p acquired Mutex [%s]\n", - ACPI_CAST_PTR(void, this_thread_id), + "Thread %u acquired Mutex [%s]\n", + (u32)this_thread_id, acpi_ut_get_mutex_name(mutex_id))); acpi_gbl_mutex_info[mutex_id].use_count++; acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id; } else { ACPI_EXCEPTION((AE_INFO, status, - "Thread %p could not acquire Mutex [0x%X]", - ACPI_CAST_PTR(void, this_thread_id), mutex_id)); + "Thread %u could not acquire Mutex [0x%X]", + (u32)this_thread_id, mutex_id)); } return (status); @@ -287,10 +286,14 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) { + acpi_thread_id this_thread_id; + ACPI_FUNCTION_NAME(ut_release_mutex); - ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %p releasing Mutex [%s]\n", - ACPI_CAST_PTR(void, acpi_os_get_thread_id()), + this_thread_id = acpi_os_get_thread_id(); + + ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %u releasing Mutex [%s]\n", + (u32)this_thread_id, acpi_ut_get_mutex_name(mutex_id))); if (mutex_id > ACPI_MAX_MUTEX) { diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 332d076f3f10..864cfae337f3 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -115,7 +115,6 @@ * * ACPI_SIZE 16/32/64-bit unsigned value * ACPI_NATIVE_INT 16/32/64-bit signed value - * */ /******************************************************************************* @@ -132,6 +131,16 @@ typedef COMPILER_DEPENDENT_INT64 INT64; /*! [End] no source code translation !*/ +/* + * Value returned by acpi_os_get_thread_id. There is no standard "thread_id" + * across operating systems or even the various UNIX systems. Since ACPICA + * only needs the thread ID as a unique thread identifier, we use a u64 + * as the only common data type - it will accommodate any type of pointer or + * any type of integer. It is up to the host-dependent OSL to cast the + * native thread ID type to a u64 (in acpi_os_get_thread_id). + */ +#define acpi_thread_id u64 + /******************************************************************************* * * Types specific to 64-bit targets @@ -211,12 +220,6 @@ typedef u32 acpi_physical_address; * ******************************************************************************/ -/* Value returned by acpi_os_get_thread_id */ - -#ifndef acpi_thread_id -#define acpi_thread_id acpi_size -#endif - /* Flags for acpi_os_acquire_lock/acpi_os_release_lock */ #ifndef acpi_cpu_flags diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 103f08aca764..572189e37133 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -75,7 +75,6 @@ #define acpi_cache_t struct kmem_cache #define acpi_spinlock spinlock_t * #define acpi_cpu_flags unsigned long -#define acpi_thread_id struct task_struct * #else /* !__KERNEL__ */ @@ -88,7 +87,7 @@ /* Host-dependent types and defines for user-space ACPICA */ #define ACPI_FLUSH_CPU_CACHE() -#define acpi_thread_id pthread_t +#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread)) #if defined(__ia64__) || defined(__x86_64__) #define ACPI_MACHINE_WIDTH 64 @@ -113,12 +112,13 @@ #ifdef __KERNEL__ +#include /* * Overrides for in-kernel ACPICA */ static inline acpi_thread_id acpi_os_get_thread_id(void) { - return current; + return (acpi_thread_id)(unsigned long)current; } /* @@ -127,7 +127,6 @@ static inline acpi_thread_id acpi_os_get_thread_id(void) * However, boot has (system_state != SYSTEM_RUNNING) * to quiet __might_sleep() in kmalloc() and resume does not. */ -#include static inline void *acpi_os_allocate(acpi_size size) { return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); -- cgit v1.2.3-70-g09d2 From e786db75406b30fa74dea095c571c8c164a2f3dd Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 15 Sep 2010 14:00:53 +0800 Subject: ACPICA: Update math module; no functional change Move the 64-bit overlay structures to the utmath module since they are used nowhere else. Update module comment. ACPICA BZ 829. http://www.acpica.org/bugzilla/show_bug.cgi?id=829 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/utmath.c | 23 ++++++++++++++++++++--- include/acpi/actypes.h | 10 ---------- 2 files changed, 20 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c index 35059a14eb72..49cf7b7fd816 100644 --- a/drivers/acpi/acpica/utmath.c +++ b/drivers/acpi/acpica/utmath.c @@ -48,11 +48,27 @@ ACPI_MODULE_NAME("utmath") /* - * Support for double-precision integer divide. This code is included here - * in order to support kernel environments where the double-precision math - * library is not available. + * Optional support for 64-bit double-precision integer divide. This code + * is configurable and is implemented in order to support 32-bit kernel + * environments where a 64-bit double-precision math library is not available. + * + * Support for a more normal 64-bit divide/modulo (with check for a divide- + * by-zero) appears after this optional section of code. */ #ifndef ACPI_USE_NATIVE_DIVIDE +/* Structures used only for 64-bit divide */ +typedef struct uint64_struct { + u32 lo; + u32 hi; + +} uint64_struct; + +typedef union uint64_overlay { + u64 full; + struct uint64_struct part; + +} uint64_overlay; + /******************************************************************************* * * FUNCTION: acpi_ut_short_divide @@ -69,6 +85,7 @@ ACPI_MODULE_NAME("utmath") * 32-bit remainder. * ******************************************************************************/ + acpi_status acpi_ut_short_divide(u64 dividend, u32 divisor, u64 *out_quotient, u32 *out_remainder) diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 864cfae337f3..2b134b691e34 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -378,16 +378,6 @@ typedef void *acpi_handle; /* Actually a ptr to a NS Node */ typedef u8 acpi_owner_id; #define ACPI_OWNER_ID_MAX 0xFF -struct uint64_struct { - u32 lo; - u32 hi; -}; - -union uint64_overlay { - u64 full; - struct uint64_struct part; -}; - #define ACPI_INTEGER_BIT_SIZE 64 #define ACPI_MAX_DECIMAL_DIGITS 20 /* 2^64 = 18,446,744,073,709,551,616 */ -- cgit v1.2.3-70-g09d2 From 31b3d4c3b3c599a2329c3e66ffab7a045b169c85 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 15 Sep 2010 14:02:56 +0800 Subject: ACPICA: Make acpi_gbl_system_awake_and_running publically available Added extern for this boolean in acpixf.h. Some hosts utilize this value during suspend/restore operations. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/acglobal.h | 2 +- include/acpi/acpixf.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index fe50f57d4e42..b8dbb9bd6962 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -132,6 +132,7 @@ struct acpi_table_fadt acpi_gbl_FADT; u32 acpi_current_gpe_count; u32 acpi_gbl_trace_flags; acpi_name acpi_gbl_trace_method_name; +u8 acpi_gbl_system_awake_and_running; #endif @@ -278,7 +279,6 @@ ACPI_EXTERN u8 acpi_gbl_debugger_configuration; ACPI_EXTERN u8 acpi_gbl_step_to_next_call; ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; ACPI_EXTERN u8 acpi_gbl_events_initialized; -ACPI_EXTERN u8 acpi_gbl_system_awake_and_running; ACPI_EXTERN u8 acpi_gbl_osi_data; ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index bfa252ba110b..c156e5ec388d 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -72,6 +72,7 @@ extern u8 acpi_gbl_truncate_io_addresses; extern u32 acpi_current_gpe_count; extern struct acpi_table_fadt acpi_gbl_FADT; +extern u8 acpi_gbl_system_awake_and_running; extern u32 acpi_rsdt_forced; /* -- cgit v1.2.3-70-g09d2 From cc84e262b71bab53c3b2be2e71209c85b88b4b4d Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 15 Sep 2010 14:09:14 +0800 Subject: ACPICA: iASL/Disassembler: Write ACPI errors to stderr instead of output file This keeps the output files clean of random error messages that may originate from within the namespace/interpreter code. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/Makefile | 2 +- drivers/acpi/acpica/acmacros.h | 4 +- drivers/acpi/acpica/acnamesp.h | 12 -- drivers/acpi/acpica/acutils.h | 39 ++-- drivers/acpi/acpica/nsutils.c | 98 ---------- drivers/acpi/acpica/utmisc.c | 162 ---------------- drivers/acpi/acpica/utxferror.c | 415 ++++++++++++++++++++++++++++++++++++++++ 7 files changed, 445 insertions(+), 287 deletions(-) create mode 100644 drivers/acpi/acpica/utxferror.c (limited to 'drivers') diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 4fdcfdb1618b..a7e1d1aa4107 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -45,4 +45,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o \ - utosi.o + utosi.o utxferror.o diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 9894929a2abb..8d5c9e0a495f 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -338,8 +338,8 @@ * the plist contains a set of parens to allow variable-length lists. * These macros are used for both the debug and non-debug versions of the code. */ -#define ACPI_ERROR_NAMESPACE(s, e) acpi_ns_report_error (AE_INFO, s, e); -#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ns_report_method_error (AE_INFO, s, n, p, e); +#define ACPI_ERROR_NAMESPACE(s, e) acpi_ut_namespace_error (AE_INFO, s, e); +#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ut_method_error (AE_INFO, s, n, p, e); #define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist #define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 9f60ff002203..d44d3bc5b847 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -338,18 +338,6 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node); u32 acpi_ns_local(acpi_object_type type); -void -acpi_ns_report_error(const char *module_name, - u32 line_number, - const char *internal_name, acpi_status lookup_status); - -void -acpi_ns_report_method_error(const char *module_name, - u32 line_number, - const char *message, - struct acpi_namespace_node *node, - const char *path, acpi_status lookup_status); - void acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg); diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 78e01211c7a1..72e4183c1937 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -486,17 +486,6 @@ u8 acpi_ut_valid_acpi_char(char character, u32 position); acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer); -void ACPI_INTERNAL_VAR_XFACE -acpi_ut_predefined_warning(const char *module_name, - u32 line_number, - char *pathname, - u8 node_flags, const char *format, ...); - -void ACPI_INTERNAL_VAR_XFACE -acpi_ut_predefined_info(const char *module_name, - u32 line_number, - char *pathname, u8 node_flags, const char *format, ...); - /* Values for Base above (16=Hex, 10=Decimal) */ #define ACPI_ANY_BASE 0 @@ -587,6 +576,32 @@ acpi_status acpi_ut_create_list(char *list_name, u16 object_size, struct acpi_memory_list **return_cache); -#endif +#endif /* ACPI_DBG_TRACK_ALLOCATIONS */ + +/* + * utxferror - various error/warning output functions + */ +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_warning(const char *module_name, + u32 line_number, + char *pathname, + u8 node_flags, const char *format, ...); + +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_info(const char *module_name, + u32 line_number, + char *pathname, u8 node_flags, const char *format, ...); + +void +acpi_ut_namespace_error(const char *module_name, + u32 line_number, + const char *internal_name, acpi_status lookup_status); + +void +acpi_ut_method_error(const char *module_name, + u32 line_number, + const char *message, + struct acpi_namespace_node *node, + const char *path, acpi_status lookup_status); #endif /* _ACUTILS_H */ diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index e1add3491b04..a7d6ad9c111b 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -58,104 +58,6 @@ static u8 acpi_ns_valid_path_separator(char sep); acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search); #endif -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * internal_name - Name or path of the namespace node - * lookup_status - Exception code from NS lookup - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_error(const char *module_name, - u32 line_number, - const char *internal_name, acpi_status lookup_status) -{ - acpi_status status; - u32 bad_name; - char *name = NULL; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (lookup_status == AE_BAD_CHARACTER) { - - /* There is a non-ascii character in the name */ - - ACPI_MOVE_32_TO_32(&bad_name, - ACPI_CAST_PTR(u32, internal_name)); - acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); - } else { - /* Convert path to external format */ - - status = acpi_ns_externalize_name(ACPI_UINT32_MAX, - internal_name, NULL, &name); - - /* Print target name */ - - if (ACPI_SUCCESS(status)) { - acpi_os_printf("[%s]", name); - } else { - acpi_os_printf("[COULD NOT EXTERNALIZE NAME]"); - } - - if (name) { - ACPI_FREE(name); - } - } - - acpi_os_printf(" Namespace lookup failure, %s\n", - acpi_format_exception(lookup_status)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_method_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Message - Error message to use on failure - * prefix_node - Prefix relative to the path - * Path - Path to the node (optional) - * method_status - Execution status - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_method_error(const char *module_name, - u32 line_number, - const char *message, - struct acpi_namespace_node *prefix_node, - const char *path, acpi_status method_status) -{ - acpi_status status; - struct acpi_namespace_node *node = prefix_node; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (path) { - status = - acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, - &node); - if (ACPI_FAILURE(status)) { - acpi_os_printf("[Could not get node by pathname]"); - } - } - - acpi_ns_print_node_pathname(node, message); - acpi_os_printf(", %s\n", acpi_format_exception(method_status)); -} - /******************************************************************************* * * FUNCTION: acpi_ns_print_node_pathname diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index e8d0724ee403..c7d0e05ef5a4 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -50,11 +50,6 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utmisc") -/* - * Common suffix for messages - */ -#define ACPI_COMMON_MSG_SUFFIX \ - acpi_os_printf(" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number) /******************************************************************************* * * FUNCTION: acpi_ut_validate_exception @@ -1044,160 +1039,3 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object, return_ACPI_STATUS(AE_AML_INTERNAL); } - -/******************************************************************************* - * - * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Format - Printf format string + additional args - * - * RETURN: None - * - * DESCRIPTION: Print message with module/line/version info - * - ******************************************************************************/ - -void ACPI_INTERNAL_VAR_XFACE -acpi_error(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Error: "); - - va_start(args, format); - acpi_os_vprintf(format, args); - ACPI_COMMON_MSG_SUFFIX; - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_exception(const char *module_name, - u32 line_number, acpi_status status, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Exception: %s, ", acpi_format_exception(status)); - - va_start(args, format); - acpi_os_vprintf(format, args); - ACPI_COMMON_MSG_SUFFIX; - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_warning(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI Warning: "); - - va_start(args, format); - acpi_os_vprintf(format, args); - ACPI_COMMON_MSG_SUFFIX; - va_end(args); -} - -void ACPI_INTERNAL_VAR_XFACE -acpi_info(const char *module_name, u32 line_number, const char *format, ...) -{ - va_list args; - - acpi_os_printf("ACPI: "); - - va_start(args, format); - acpi_os_vprintf(format, args); - acpi_os_printf("\n"); - va_end(args); -} - -ACPI_EXPORT_SYMBOL(acpi_error) -ACPI_EXPORT_SYMBOL(acpi_exception) -ACPI_EXPORT_SYMBOL(acpi_warning) -ACPI_EXPORT_SYMBOL(acpi_info) - -/******************************************************************************* - * - * FUNCTION: acpi_ut_predefined_warning - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Pathname - Full pathname to the node - * node_flags - From Namespace node for the method/object - * Format - Printf format string + additional args - * - * RETURN: None - * - * DESCRIPTION: Warnings for the predefined validation module. Messages are - * only emitted the first time a problem with a particular - * method/object is detected. This prevents a flood of error - * messages for methods that are repeatedly evaluated. - * -******************************************************************************/ - -void ACPI_INTERNAL_VAR_XFACE -acpi_ut_predefined_warning(const char *module_name, - u32 line_number, - char *pathname, - u8 node_flags, const char *format, ...) -{ - va_list args; - - /* - * Warning messages for this method/object will be disabled after the - * first time a validation fails or an object is successfully repaired. - */ - if (node_flags & ANOBJ_EVALUATED) { - return; - } - - acpi_os_printf("ACPI Warning for %s: ", pathname); - - va_start(args, format); - acpi_os_vprintf(format, args); - ACPI_COMMON_MSG_SUFFIX; - va_end(args); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_predefined_info - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Pathname - Full pathname to the node - * node_flags - From Namespace node for the method/object - * Format - Printf format string + additional args - * - * RETURN: None - * - * DESCRIPTION: Info messages for the predefined validation module. Messages - * are only emitted the first time a problem with a particular - * method/object is detected. This prevents a flood of - * messages for methods that are repeatedly evaluated. - * - ******************************************************************************/ - -void ACPI_INTERNAL_VAR_XFACE -acpi_ut_predefined_info(const char *module_name, - u32 line_number, - char *pathname, u8 node_flags, const char *format, ...) -{ - va_list args; - - /* - * Warning messages for this method/object will be disabled after the - * first time a validation fails or an object is successfully repaired. - */ - if (node_flags & ANOBJ_EVALUATED) { - return; - } - - acpi_os_printf("ACPI Info for %s: ", pathname); - - va_start(args, format); - acpi_os_vprintf(format, args); - ACPI_COMMON_MSG_SUFFIX; - va_end(args); -} diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c new file mode 100644 index 000000000000..bf679c4885fd --- /dev/null +++ b/drivers/acpi/acpica/utxferror.c @@ -0,0 +1,415 @@ +/******************************************************************************* + * + * Module Name: utxferror - Various error/warning output functions + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include +#include "accommon.h" +#include "acnamesp.h" + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utxferror") + +/* + * This module is used for the in-kernel ACPICA as well as the ACPICA + * tools/applications. + * + * For the i_aSL compiler case, the output is redirected to stderr so that + * any of the various ACPI errors and warnings do not appear in the output + * files, for either the compiler or disassembler portions of the tool. + */ +#ifdef ACPI_ASL_COMPILER +#include +extern FILE *acpi_gbl_output_file; + +#define ACPI_MSG_REDIRECT_BEGIN \ + FILE *output_file = acpi_gbl_output_file; \ + acpi_os_redirect_output (stderr); + +#define ACPI_MSG_REDIRECT_END \ + acpi_os_redirect_output (output_file); + +#else +/* + * non-i_aSL case - no redirection, nothing to do + */ +#define ACPI_MSG_REDIRECT_BEGIN +#define ACPI_MSG_REDIRECT_END +#endif +/* + * Common message prefixes + */ +#define ACPI_MSG_ERROR "ACPI Error: " +#define ACPI_MSG_EXCEPTION "ACPI Exception: " +#define ACPI_MSG_WARNING "ACPI Warning: " +#define ACPI_MSG_INFO "ACPI: " +/* + * Common message suffix + */ +#define ACPI_MSG_SUFFIX \ + acpi_os_printf (" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number) +/******************************************************************************* + * + * FUNCTION: acpi_error + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Print "ACPI Error" message with module/line/version info + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_error(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list arg_list; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_ERROR); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + ACPI_MSG_SUFFIX; + va_end(arg_list); + + ACPI_MSG_REDIRECT_END; +} + +ACPI_EXPORT_SYMBOL(acpi_error) + +/******************************************************************************* + * + * FUNCTION: acpi_exception + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Status - Status to be formatted + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Print "ACPI Exception" message with module/line/version info + * and decoded acpi_status. + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_exception(const char *module_name, + u32 line_number, acpi_status status, const char *format, ...) +{ + va_list arg_list; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_EXCEPTION "%s, ", + acpi_format_exception(status)); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + ACPI_MSG_SUFFIX; + va_end(arg_list); + + ACPI_MSG_REDIRECT_END; +} + +ACPI_EXPORT_SYMBOL(acpi_exception) + +/******************************************************************************* + * + * FUNCTION: acpi_warning + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Print "ACPI Warning" message with module/line/version info + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_warning(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list arg_list; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_WARNING); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + ACPI_MSG_SUFFIX; + va_end(arg_list); + + ACPI_MSG_REDIRECT_END; +} + +ACPI_EXPORT_SYMBOL(acpi_warning) + +/******************************************************************************* + * + * FUNCTION: acpi_info + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Print generic "ACPI:" information message. There is no + * module/line/version info in order to keep the message simple. + * + * TBD: module_name and line_number args are not needed, should be removed. + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_info(const char *module_name, u32 line_number, const char *format, ...) +{ + va_list arg_list; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_INFO); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + acpi_os_printf("\n"); + va_end(arg_list); + + ACPI_MSG_REDIRECT_END; +} + +ACPI_EXPORT_SYMBOL(acpi_info) + +/* + * The remainder of this module contains internal error functions that may + * be configured out. + */ +#ifndef ACPI_NO_ERROR_MESSAGES +/******************************************************************************* + * + * FUNCTION: acpi_ut_predefined_warning + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Pathname - Full pathname to the node + * node_flags - From Namespace node for the method/object + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Warnings for the predefined validation module. Messages are + * only emitted the first time a problem with a particular + * method/object is detected. This prevents a flood of error + * messages for methods that are repeatedly evaluated. + * + ******************************************************************************/ +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_warning(const char *module_name, + u32 line_number, + char *pathname, + u8 node_flags, const char *format, ...) +{ + va_list arg_list; + + /* + * Warning messages for this method/object will be disabled after the + * first time a validation fails or an object is successfully repaired. + */ + if (node_flags & ANOBJ_EVALUATED) { + return; + } + + acpi_os_printf(ACPI_MSG_WARNING "For %s: ", pathname); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + ACPI_MSG_SUFFIX; + va_end(arg_list); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_predefined_info + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Pathname - Full pathname to the node + * node_flags - From Namespace node for the method/object + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Info messages for the predefined validation module. Messages + * are only emitted the first time a problem with a particular + * method/object is detected. This prevents a flood of + * messages for methods that are repeatedly evaluated. + * + ******************************************************************************/ + +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_info(const char *module_name, + u32 line_number, + char *pathname, u8 node_flags, const char *format, ...) +{ + va_list arg_list; + + /* + * Warning messages for this method/object will be disabled after the + * first time a validation fails or an object is successfully repaired. + */ + if (node_flags & ANOBJ_EVALUATED) { + return; + } + + acpi_os_printf(ACPI_MSG_INFO "For %s: ", pathname); + + va_start(arg_list, format); + acpi_os_vprintf(format, arg_list); + ACPI_MSG_SUFFIX; + va_end(arg_list); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_namespace_error + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * internal_name - Name or path of the namespace node + * lookup_status - Exception code from NS lookup + * + * RETURN: None + * + * DESCRIPTION: Print error message with the full pathname for the NS node. + * + ******************************************************************************/ + +void +acpi_ut_namespace_error(const char *module_name, + u32 line_number, + const char *internal_name, acpi_status lookup_status) +{ + acpi_status status; + u32 bad_name; + char *name = NULL; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_ERROR); + + if (lookup_status == AE_BAD_CHARACTER) { + + /* There is a non-ascii character in the name */ + + ACPI_MOVE_32_TO_32(&bad_name, + ACPI_CAST_PTR(u32, internal_name)); + acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); + } else { + /* Convert path to external format */ + + status = acpi_ns_externalize_name(ACPI_UINT32_MAX, + internal_name, NULL, &name); + + /* Print target name */ + + if (ACPI_SUCCESS(status)) { + acpi_os_printf("[%s]", name); + } else { + acpi_os_printf("[COULD NOT EXTERNALIZE NAME]"); + } + + if (name) { + ACPI_FREE(name); + } + } + + acpi_os_printf(" Namespace lookup failure, %s", + acpi_format_exception(lookup_status)); + + ACPI_MSG_SUFFIX; + ACPI_MSG_REDIRECT_END; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_method_error + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Message - Error message to use on failure + * prefix_node - Prefix relative to the path + * Path - Path to the node (optional) + * method_status - Execution status + * + * RETURN: None + * + * DESCRIPTION: Print error message with the full pathname for the method. + * + ******************************************************************************/ + +void +acpi_ut_method_error(const char *module_name, + u32 line_number, + const char *message, + struct acpi_namespace_node *prefix_node, + const char *path, acpi_status method_status) +{ + acpi_status status; + struct acpi_namespace_node *node = prefix_node; + + ACPI_MSG_REDIRECT_BEGIN; + acpi_os_printf(ACPI_MSG_ERROR); + + if (path) { + status = + acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, + &node); + if (ACPI_FAILURE(status)) { + acpi_os_printf("[Could not get node by pathname]"); + } + } + + acpi_ns_print_node_pathname(node, message); + acpi_os_printf(", %s", acpi_format_exception(method_status)); + + ACPI_MSG_SUFFIX; + ACPI_MSG_REDIRECT_END; +} + +#endif /* ACPI_NO_ERROR_MESSAGES */ -- cgit v1.2.3-70-g09d2 From 77b23f712bc40a65160e7d02b045f1562bb43ff1 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 15 Sep 2010 14:11:02 +0800 Subject: ACPICA: Add repair for _HID and _CID strings This dynamic repair will fix these problems: 1) Remove a leading asterisk in the string 2) Uppercase the entire string Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/nsrepair2.c | 163 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 163 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index 4009498fbabd..4ef9f43ea926 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -73,10 +73,18 @@ static acpi_status acpi_ns_repair_ALR(struct acpi_predefined_data *data, union acpi_operand_object **return_object_ptr); +static acpi_status +acpi_ns_repair_CID(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + static acpi_status acpi_ns_repair_FDE(struct acpi_predefined_data *data, union acpi_operand_object **return_object_ptr); +static acpi_status +acpi_ns_repair_HID(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + static acpi_status acpi_ns_repair_PSS(struct acpi_predefined_data *data, union acpi_operand_object **return_object_ptr); @@ -108,8 +116,10 @@ acpi_ns_sort_list(union acpi_operand_object **elements, * As necessary: * * _ALR: Sort the list ascending by ambient_illuminance + * _CID: Strings: uppercase all, remove any leading asterisk * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs + * _HID: Strings: uppercase all, remove any leading asterisk * _PSS: Sort the list descending by Power * _TSS: Sort the list descending by Power * @@ -122,8 +132,10 @@ acpi_ns_sort_list(union acpi_operand_object **elements, */ static const struct acpi_repair_info acpi_ns_repairable_names[] = { {"_ALR", acpi_ns_repair_ALR}, + {"_CID", acpi_ns_repair_CID}, {"_FDE", acpi_ns_repair_FDE}, {"_GTM", acpi_ns_repair_FDE}, /* _GTM has same repair as _FDE */ + {"_HID", acpi_ns_repair_HID}, {"_PSS", acpi_ns_repair_PSS}, {"_TSS", acpi_ns_repair_TSS}, {{0, 0, 0, 0}, NULL} /* Table terminator */ @@ -319,6 +331,157 @@ acpi_ns_repair_FDE(struct acpi_predefined_data *data, return (AE_OK); } +/****************************************************************************** + * + * FUNCTION: acpi_ns_repair_CID + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if object is OK or was repaired successfully + * + * DESCRIPTION: Repair for the _CID object. If a string, ensure that all + * letters are uppercase and that there is no leading asterisk. + * If a Package, ensure same for all string elements. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_repair_CID(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) +{ + acpi_status status; + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object **element_ptr; + union acpi_operand_object *original_element; + u16 original_ref_count; + u32 i; + + /* Check for _CID as a simple string */ + + if (return_object->common.type == ACPI_TYPE_STRING) { + status = acpi_ns_repair_HID(data, return_object_ptr); + return (status); + } + + /* Exit if not a Package */ + + if (return_object->common.type != ACPI_TYPE_PACKAGE) { + return (AE_OK); + } + + /* Examine each element of the _CID package */ + + element_ptr = return_object->package.elements; + for (i = 0; i < return_object->package.count; i++) { + original_element = *element_ptr; + original_ref_count = original_element->common.reference_count; + + status = acpi_ns_repair_HID(data, element_ptr); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Take care with reference counts */ + + if (original_element != *element_ptr) { + + /* Element was replaced */ + + (*element_ptr)->common.reference_count = + original_ref_count; + + acpi_ut_remove_reference(original_element); + } + + element_ptr++; + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_repair_HID + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if object is OK or was repaired successfully + * + * DESCRIPTION: Repair for the _HID object. If a string, ensure that all + * letters are uppercase and that there is no leading asterisk. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_repair_HID(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object *new_string; + char *source; + char *dest; + + ACPI_FUNCTION_NAME(ns_repair_HID); + + /* We only care about string _HID objects (not integers) */ + + if (return_object->common.type != ACPI_TYPE_STRING) { + return (AE_OK); + } + + if (return_object->string.length == 0) { + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Invalid zero-length _HID or _CID string")); + + /* Return AE_OK anyway, let driver handle it */ + + data->flags |= ACPI_OBJECT_REPAIRED; + return (AE_OK); + } + + /* It is simplest to always create a new string object */ + + new_string = acpi_ut_create_string_object(return_object->string.length); + if (!new_string) { + return (AE_NO_MEMORY); + } + + /* + * Remove a leading asterisk if present. For some unknown reason, there + * are many machines in the field that contains IDs like this. + * + * Examples: "*PNP0C03", "*ACPI0003" + */ + source = return_object->string.pointer; + if (*source == '*') { + source++; + new_string->string.length--; + + ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, + "%s: Removed invalid leading asterisk\n", + data->pathname)); + } + + /* + * Copy and uppercase the string. From the ACPI specification: + * + * A valid PNP ID must be of the form "AAA####" where A is an uppercase + * letter and # is a hex digit. A valid ACPI ID must be of the form + * "ACPI####" where # is a hex digit. + */ + for (dest = new_string->string.pointer; *source; dest++, source++) { + *dest = (char)ACPI_TOUPPER(*source); + } + + acpi_ut_remove_reference(return_object); + *return_object_ptr = new_string; + return (AE_OK); +} + /****************************************************************************** * * FUNCTION: acpi_ns_repair_TSS -- cgit v1.2.3-70-g09d2 From 75434a2ae37b78887b7a1d70d0a23bbd5e09fb01 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 17 Sep 2010 08:14:01 +0800 Subject: ACPICA: Increase configurability of error messages Update to utxferror.c Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/utxferror.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c index bf679c4885fd..6f12e314fbae 100644 --- a/drivers/acpi/acpica/utxferror.c +++ b/drivers/acpi/acpica/utxferror.c @@ -221,7 +221,7 @@ ACPI_EXPORT_SYMBOL(acpi_info) * The remainder of this module contains internal error functions that may * be configured out. */ -#ifndef ACPI_NO_ERROR_MESSAGES +#if !defined (ACPI_NO_ERROR_MESSAGES) && !defined (ACPI_BIN_APP) /******************************************************************************* * * FUNCTION: acpi_ut_predefined_warning -- cgit v1.2.3-70-g09d2 From c1f3f2819667a238585c65bba96c8b16af39a442 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 29 Sep 2010 12:24:23 -0600 Subject: PNP: log PNP resources, as we do for PCI ACPI devices are often involved in address space conflicts with PCI devices, so I think it's worth logging the resources they use. Otherwise we have to depend on lspnp or groping around in sysfs to find them. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/pnp/core.c | 5 +++-- drivers/pnp/resource.c | 10 +++++----- 2 files changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c index 88b3cde52596..53a8f33e649c 100644 --- a/drivers/pnp/core.c +++ b/drivers/pnp/core.c @@ -194,8 +194,9 @@ int pnp_add_device(struct pnp_dev *dev) for (id = dev->id; id; id = id->next) len += scnprintf(buf + len, sizeof(buf) - len, " %s", id->id); - pnp_dbg(&dev->dev, "%s device, IDs%s (%s)\n", - dev->protocol->name, buf, dev->active ? "active" : "disabled"); + dev_printk(KERN_DEBUG, &dev->dev, "%s device, IDs%s (%s)\n", + dev->protocol->name, buf, + dev->active ? "active" : "disabled"); return 0; } diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index e3446ab8b563..a925e6b63d72 100644 --- a/drivers/pnp/resource.c +++ b/drivers/pnp/resource.c @@ -523,7 +523,7 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq, res->start = irq; res->end = irq; - pnp_dbg(&dev->dev, " add %pr\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); return pnp_res; } @@ -544,7 +544,7 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, res->start = dma; res->end = dma; - pnp_dbg(&dev->dev, " add %pr\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); return pnp_res; } @@ -568,7 +568,7 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, res->start = start; res->end = end; - pnp_dbg(&dev->dev, " add %pr\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); return pnp_res; } @@ -592,7 +592,7 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev, res->start = start; res->end = end; - pnp_dbg(&dev->dev, " add %pr\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); return pnp_res; } @@ -616,7 +616,7 @@ struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev, res->start = start; res->end = end; - pnp_dbg(&dev->dev, " add %pr\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); return pnp_res; } -- cgit v1.2.3-70-g09d2 From 420a0f66378c84b00b0e603e4d38210102dbe367 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sat, 18 Sep 2010 10:11:09 -0700 Subject: PNPACPI: cope with invalid device IDs If primary ID (HID) is invalid try locating first valid ID on compatible ID list before giving up. This helps, for example, to recognize i8042 AUX port on Sony Vaio VPCZ1 which uses SNYSYN0003 as HID. Without the patch users are forced to boot with i8042.nopnp to make use of their touchpads. Tested-by: Jan-Hendrik Zab Signed-off-by: Dmitry Torokhov Signed-off-by: Len Brown --- drivers/pnp/pnpacpi/core.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index dc4e32e031e9..0d943eea1c2d 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -28,7 +28,7 @@ #include "../base.h" #include "pnpacpi.h" -static int num = 0; +static int num; /* We need only to blacklist devices that have already an acpi driver that * can't use pnp layer. We don't need to blacklist device that are directly @@ -180,11 +180,24 @@ struct pnp_protocol pnpacpi_protocol = { }; EXPORT_SYMBOL(pnpacpi_protocol); +static char *pnpacpi_get_id(struct acpi_device *device) +{ + struct acpi_hardware_id *id; + + list_for_each_entry(id, &device->pnp.ids, list) { + if (ispnpidacpi(id->id)) + return id->id; + } + + return NULL; +} + static int __init pnpacpi_add_device(struct acpi_device *device) { acpi_handle temp = NULL; acpi_status status; struct pnp_dev *dev; + char *pnpid; struct acpi_hardware_id *id; /* @@ -192,11 +205,17 @@ static int __init pnpacpi_add_device(struct acpi_device *device) * driver should not be loaded. */ status = acpi_get_handle(device->handle, "_CRS", &temp); - if (ACPI_FAILURE(status) || !ispnpidacpi(acpi_device_hid(device)) || - is_exclusive_device(device) || (!device->status.present)) + if (ACPI_FAILURE(status)) + return 0; + + pnpid = pnpacpi_get_id(device); + if (!pnpid) + return 0; + + if (is_exclusive_device(device) || !device->status.present) return 0; - dev = pnp_alloc_dev(&pnpacpi_protocol, num, acpi_device_hid(device)); + dev = pnp_alloc_dev(&pnpacpi_protocol, num, pnpid); if (!dev) return -ENOMEM; @@ -227,7 +246,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device) pnpacpi_parse_resource_option_data(dev); list_for_each_entry(id, &device->pnp.ids, list) { - if (!strcmp(id->id, acpi_device_hid(device))) + if (!strcmp(id->id, pnpid)) continue; if (!ispnpidacpi(id->id)) continue; -- cgit v1.2.3-70-g09d2 From eaeca2e9a7dbd8f05a8a47e66e3e1de105426f0b Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Fri, 1 Oct 2010 10:54:53 +0200 Subject: ACPI: Remove unused #define ACPI_PROCESSOR_FILE_POWER Looks like a left over from /proc/acpi/processor/*/power which got removed Signed-off-by: Thomas Renninger Signed-off-by: Len Brown --- drivers/acpi/processor_idle.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f4428e82b352..175c89a5ca90 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -64,7 +64,6 @@ #define ACPI_PROCESSOR_CLASS "processor" #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_idle"); -#define ACPI_PROCESSOR_FILE_POWER "power" #define PM_TIMER_TICK_NS (1000000000ULL/PM_TIMER_FREQUENCY) #define C2_OVERHEAD 1 /* 1us */ #define C3_OVERHEAD 1 /* 1us */ -- cgit v1.2.3-70-g09d2 From 2b2ae7c7f8e25043793042eb9df88aa875b4cff8 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Fri, 1 Oct 2010 10:53:59 +0200 Subject: ACPI: Do not export hid/modalias sysfs file for ACPI objects without a HID Boot and compile tested. The fact that pnp.ids can now be empty needs testing on some further machines, though. This should handle a "modprobe is wrongly called by udev" issue: https://bugzilla.kernel.org/show_bug.cgi?id=19162 Modaliase files in /sys/devices/LNXSYSTM:00/ went down from 113 to 71 on my tested system. This is a sysfs change, but userspace must already be able to handle it. Also do not fill up pnp.ids list with a "struct hid" entry. This comment: * This generic ID isn't useful for driver binding, but it provides * the useful property that "every acpi_device has an ID." is still half way true: Best you never touch pnp.ids list directly or make sure it can be empty, instead use: char *acpi_device_hid() which always returns a value ("device" as a dummy if the object has no hid). Signed-off-by: Thomas Renninger CC: Zhang Rui CC: kay.sievers@vrfy.org CC: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/scan.c | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index b23825ecfa37..81aec8d66fd0 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -26,6 +26,9 @@ extern struct acpi_device *acpi_root; #define ACPI_IS_ROOT_DEVICE(device) (!(device)->parent) +/* Should be const */ +static char* dummy_hid = "device"; + static LIST_HEAD(acpi_device_list); static LIST_HEAD(acpi_bus_id_list); DEFINE_MUTEX(acpi_device_lock); @@ -49,6 +52,9 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, int count; struct acpi_hardware_id *id; + if (list_empty(&acpi_dev->pnp.ids)) + return 0; + len = snprintf(modalias, size, "acpi:"); size -= len; @@ -202,13 +208,15 @@ static int acpi_device_setup_files(struct acpi_device *dev) goto end; } - result = device_create_file(&dev->dev, &dev_attr_hid); - if (result) - goto end; + if (!list_empty(&dev->pnp.ids)) { + result = device_create_file(&dev->dev, &dev_attr_hid); + if (result) + goto end; - result = device_create_file(&dev->dev, &dev_attr_modalias); - if (result) - goto end; + result = device_create_file(&dev->dev, &dev_attr_modalias); + if (result) + goto end; + } /* * If device has _EJ0, 'eject' file is created that is used to trigger @@ -316,6 +324,9 @@ static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) struct acpi_device *acpi_dev = to_acpi_device(dev); int len; + if (list_empty(&acpi_dev->pnp.ids)) + return 0; + if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], @@ -1014,6 +1025,9 @@ char *acpi_device_hid(struct acpi_device *device) { struct acpi_hardware_id *hid; + if (list_empty(&device->pnp.ids)) + return dummy_hid; + hid = list_first_entry(&device->pnp.ids, struct acpi_hardware_id, list); return hid->id; } @@ -1142,16 +1156,6 @@ static void acpi_device_set_id(struct acpi_device *device) acpi_add_id(device, ACPI_BUTTON_HID_SLEEPF); break; } - - /* - * We build acpi_devices for some objects that don't have _HID or _CID, - * e.g., PCI bridges and slots. Drivers can't bind to these objects, - * but we do use them indirectly by traversing the acpi_device tree. - * This generic ID isn't useful for driver binding, but it provides - * the useful property that "every acpi_device has an ID." - */ - if (list_empty(&device->pnp.ids)) - acpi_add_id(device, "device"); } static int acpi_device_set_context(struct acpi_device *device) -- cgit v1.2.3-70-g09d2 From 620e112cfe1c9281c176de8ad1a7691c4eb4950d Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Fri, 1 Oct 2010 10:54:00 +0200 Subject: ACPI/PNP: A HID value of an object never changes -> make it const Signed-off-by: Thomas Renninger Signed-off-by: Len Brown --- drivers/acpi/button.c | 4 ++-- drivers/acpi/scan.c | 5 ++--- drivers/pnp/base.h | 5 +++-- drivers/pnp/core.c | 3 ++- drivers/pnp/driver.c | 2 +- drivers/pnp/pnpacpi/core.c | 2 +- include/acpi/acpi_bus.h | 2 +- 7 files changed, 12 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 1575a9b51f1d..71ef9cd0735f 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -338,7 +338,8 @@ static int acpi_button_add(struct acpi_device *device) { struct acpi_button *button; struct input_dev *input; - char *hid, *name, *class; + const char *hid = acpi_device_hid(device); + char *name, *class; int error; button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL); @@ -353,7 +354,6 @@ static int acpi_button_add(struct acpi_device *device) goto err_free_button; } - hid = acpi_device_hid(device); name = acpi_device_name(device); class = acpi_device_class(device); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 81aec8d66fd0..6155eeb2e89a 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -26,8 +26,7 @@ extern struct acpi_device *acpi_root; #define ACPI_IS_ROOT_DEVICE(device) (!(device)->parent) -/* Should be const */ -static char* dummy_hid = "device"; +static const char *dummy_hid = "device"; static LIST_HEAD(acpi_device_list); static LIST_HEAD(acpi_bus_id_list); @@ -1021,7 +1020,7 @@ static int acpi_dock_match(struct acpi_device *device) return acpi_get_handle(device->handle, "_DCK", &tmp); } -char *acpi_device_hid(struct acpi_device *device) +const char *acpi_device_hid(struct acpi_device *device) { struct acpi_hardware_id *hid; diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h index 0bab84ebb15d..19bc73695475 100644 --- a/drivers/pnp/base.h +++ b/drivers/pnp/base.h @@ -12,11 +12,12 @@ void pnp_unregister_protocol(struct pnp_protocol *protocol); #define PNP_EISA_ID_MASK 0x7fffffff void pnp_eisa_id_to_string(u32 id, char *str); -struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id, char *pnpid); +struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id, + const char *pnpid); struct pnp_card *pnp_alloc_card(struct pnp_protocol *, int id, char *pnpid); int pnp_add_device(struct pnp_dev *dev); -struct pnp_id *pnp_add_id(struct pnp_dev *dev, char *id); +struct pnp_id *pnp_add_id(struct pnp_dev *dev, const char *id); int pnp_add_card(struct pnp_card *card); void pnp_remove_card(struct pnp_card *card); diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c index 88b3cde52596..c79ee1ded68d 100644 --- a/drivers/pnp/core.c +++ b/drivers/pnp/core.c @@ -124,7 +124,8 @@ static void pnp_release_device(struct device *dmdev) kfree(dev); } -struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *protocol, int id, char *pnpid) +struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *protocol, int id, + const char *pnpid) { struct pnp_dev *dev; struct pnp_id *dev_id; diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c index cd11b113494f..d1dbb9df53fa 100644 --- a/drivers/pnp/driver.c +++ b/drivers/pnp/driver.c @@ -236,7 +236,7 @@ void pnp_unregister_driver(struct pnp_driver *drv) * @dev: pointer to the desired device * @id: pointer to an EISA id string */ -struct pnp_id *pnp_add_id(struct pnp_dev *dev, char *id) +struct pnp_id *pnp_add_id(struct pnp_dev *dev, const char *id) { struct pnp_id *dev_id, *ptr; diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index dc4e32e031e9..4aafcf89b03b 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -59,7 +59,7 @@ static inline int __init is_exclusive_device(struct acpi_device *dev) #define TEST_ALPHA(c) \ if (!('@' <= (c) || (c) <= 'Z')) \ return 0 -static int __init ispnpidacpi(char *id) +static int __init ispnpidacpi(const char *id) { TEST_ALPHA(id[0]); TEST_ALPHA(id[1]); diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 4de84ce3a927..a47bb908ddcd 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -184,7 +184,7 @@ struct acpi_device_pnp { #define acpi_device_bid(d) ((d)->pnp.bus_id) #define acpi_device_adr(d) ((d)->pnp.bus_address) -char *acpi_device_hid(struct acpi_device *device); +const char *acpi_device_hid(struct acpi_device *device); #define acpi_device_name(d) ((d)->pnp.device_name) #define acpi_device_class(d) ((d)->pnp.device_class) -- cgit v1.2.3-70-g09d2 From 761afb869f649ea23e2dea7bfe9b550d3a1b7631 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 14 Oct 2010 23:24:13 +0200 Subject: ACPI / PM: Fix problems with acpi_pm_device_sleep_state() There is a number of problems with acpi_pm_device_sleep_state() now. First, if _S0W is not defined, it prevents devices from being put into D3 by PCI runtime PM, which shouldn't happen. Second, it shouldn't use adev->wakeup.state.enabled, because if it's set, it only means that either the device is permanently enabled to wake up the system, or that it has been enabled to do that through /proc/acpi/wakeup. Finally, it should be compiled if CONFIG_PM_SLEEP is not set, so that PCI runtime PM works correctly in that case. Fix these problems. Reported-by: Matthew Garrett Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/sleep.c | 16 ++++++++++------ include/acpi/acpi_bus.h | 12 ++++++++---- 2 files changed, 18 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 4754ff6e70e6..e807f4196f89 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -27,6 +27,8 @@ u8 sleep_states[ACPI_S_STATE_COUNT]; +static u32 acpi_target_sleep_state = ACPI_STATE_S0; + static void acpi_sleep_tts_switch(u32 acpi_state) { union acpi_object in_arg = { ACPI_TYPE_INTEGER }; @@ -79,8 +81,6 @@ static int acpi_sleep_prepare(u32 acpi_state) } #ifdef CONFIG_ACPI_SLEEP -static u32 acpi_target_sleep_state = ACPI_STATE_S0; - /* * The ACPI specification wants us to save NVS memory regions during hibernation * and to restore them during the subsequent resume. Windows does that also for @@ -562,7 +562,7 @@ int acpi_suspend(u32 acpi_state) return -EINVAL; } -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM_OPS /** * acpi_pm_device_sleep_state - return preferred power state of ACPI device * in the system sleep state given by %acpi_target_sleep_state @@ -624,7 +624,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) * can wake the system. _S0W may be valid, too. */ if (acpi_target_sleep_state == ACPI_STATE_S0 || - (device_may_wakeup(dev) && adev->wakeup.state.enabled && + (device_may_wakeup(dev) && adev->wakeup.sleep_state <= acpi_target_sleep_state)) { acpi_status status; @@ -632,7 +632,9 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) status = acpi_evaluate_integer(handle, acpi_method, NULL, &d_max); if (ACPI_FAILURE(status)) { - d_max = d_min; + if (acpi_target_sleep_state != ACPI_STATE_S0 || + status != AE_NOT_FOUND) + d_max = d_min; } else if (d_max < d_min) { /* Warn the user of the broken DSDT */ printk(KERN_WARNING "ACPI: Wrong value from %s\n", @@ -646,7 +648,9 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) *d_min_p = d_min; return d_max; } +#endif /* CONFIG_PM_OPS */ +#ifdef CONFIG_PM_SLEEP /** * acpi_pm_device_sleep_wake - enable or disable the system wake-up * capability of given device @@ -677,7 +681,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) return error; } -#endif +#endif /* CONFIG_PM_SLEEP */ static void acpi_power_off_prepare(void) { diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 4de84ce3a927..8ef68a16aa03 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -389,21 +389,25 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); int acpi_disable_wakeup_device_power(struct acpi_device *dev); -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM_OPS int acpi_pm_device_sleep_state(struct device *, int *); -int acpi_pm_device_sleep_wake(struct device *, bool); -#else /* !CONFIG_PM_SLEEP */ +#else static inline int acpi_pm_device_sleep_state(struct device *d, int *p) { if (p) *p = ACPI_STATE_D0; return ACPI_STATE_D3; } +#endif + +#ifdef CONFIG_PM_SLEEP +int acpi_pm_device_sleep_wake(struct device *, bool); +#else static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) { return -ENODEV; } -#endif /* !CONFIG_PM_SLEEP */ +#endif #endif /* CONFIG_ACPI */ -- cgit v1.2.3-70-g09d2 From 3af283e1141474925b33383425bbe038e75fd03a Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 15 Oct 2010 21:38:57 -0400 Subject: ACPI: add FW_BUG to OSI(Linux) message Linux-2.6.22 initiated a dmesg complaint when it saw BIOS that invoked OSI(Linux). Linux-2.6.23 continued that complaint and started our policy of ignoring the bogus BIOS request. Past-time for Linux to label that complaint with FW_BUG. Signed-off-by: Len Brown --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 90a8e86e86f5..d3bed219c442 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -144,7 +144,7 @@ static u32 acpi_osi_handler(acpi_string interface, u32 supported) { if (!strcmp("Linux", interface)) { - printk(KERN_NOTICE PREFIX + printk(KERN_NOTICE FW_BUG PREFIX "BIOS _OSI(Linux) query %s%s\n", osi_linux.enable ? "honored" : "ignored", osi_linux.cmdline ? " via cmdline" : -- cgit v1.2.3-70-g09d2 From 1b3d4c3b9a597e216c08bff2c59a8de872ef2d09 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:54:57 +0800 Subject: ACPI ac/battery/sbs: sysfs I/F always built in, procfs I/F disabled by default ACPI AC/Battery/SBS driver has different kernel option for procfs and sysfs I/F. This patch, 1. Change CONFIG_ACPI_PROCFS_POWER to 'n' by default so that we can remove it in the next release or two. 2. Remove CONFIG_ACPI_SYSFS_POWER and always build in the sysfs I/F of these drivers. Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 11 +++-------- drivers/acpi/ac.c | 14 -------------- drivers/acpi/battery.c | 21 --------------------- drivers/acpi/sbs.c | 25 ------------------------- 4 files changed, 3 insertions(+), 68 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 88681aca88c5..0f9de2b44c0c 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -66,7 +66,6 @@ config ACPI_PROCFS config ACPI_PROCFS_POWER bool "Deprecated power /proc/acpi directories" depends on PROC_FS - default y help For backwards compatibility, this option allows deprecated power /proc/acpi/ directories to exist, even when @@ -90,13 +89,6 @@ config ACPI_POWER_METER To compile this driver as a module, choose M here: the module will be called power-meter. -config ACPI_SYSFS_POWER - bool "Future power /sys interface" - select POWER_SUPPLY - default y - help - Say N to disable power /sys interface - config ACPI_EC_DEBUGFS tristate "EC read/write access through /sys/kernel/debug/ec" default n @@ -136,6 +128,7 @@ config ACPI_PROC_EVENT config ACPI_AC tristate "AC Adapter" depends on X86 + select POWER_SUPPLY default y help This driver supports the AC Adapter object, which indicates @@ -148,6 +141,7 @@ config ACPI_AC config ACPI_BATTERY tristate "Battery" depends on X86 + select POWER_SUPPLY default y help This driver adds support for battery information through @@ -364,6 +358,7 @@ config ACPI_HOTPLUG_MEMORY config ACPI_SBS tristate "Smart Battery System" depends on X86 + select POWER_SUPPLY help This driver supports the Smart Battery System, another type of access to battery information, found on some laptops. diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 56205a0b85df..ba9afeaa23ac 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -32,9 +32,7 @@ #include #include #endif -#ifdef CONFIG_ACPI_SYSFS_POWER #include -#endif #include #include @@ -86,9 +84,7 @@ static struct acpi_driver acpi_ac_driver = { }; struct acpi_ac { -#ifdef CONFIG_ACPI_SYSFS_POWER struct power_supply charger; -#endif struct acpi_device * device; unsigned long long state; }; @@ -104,7 +100,6 @@ static const struct file_operations acpi_ac_fops = { .release = single_release, }; #endif -#ifdef CONFIG_ACPI_SYSFS_POWER static int get_ac_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -123,7 +118,6 @@ static int get_ac_property(struct power_supply *psy, static enum power_supply_property ac_props[] = { POWER_SUPPLY_PROP_ONLINE, }; -#endif /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ @@ -247,9 +241,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event) dev_name(&device->dev), event, (u32) ac->state); acpi_notifier_call_chain(device, event, (u32) ac->state); -#ifdef CONFIG_ACPI_SYSFS_POWER kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); -#endif } return; @@ -282,14 +274,12 @@ static int acpi_ac_add(struct acpi_device *device) #endif if (result) goto end; -#ifdef CONFIG_ACPI_SYSFS_POWER ac->charger.name = acpi_device_bid(device); ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; power_supply_register(&ac->device->dev, &ac->charger); -#endif printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), @@ -316,10 +306,8 @@ static int acpi_ac_resume(struct acpi_device *device) old_state = ac->state; if (acpi_ac_get_state(ac)) return 0; -#ifdef CONFIG_ACPI_SYSFS_POWER if (old_state != ac->state) kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); -#endif return 0; } @@ -333,10 +321,8 @@ static int acpi_ac_remove(struct acpi_device *device, int type) ac = acpi_driver_data(device); -#ifdef CONFIG_ACPI_SYSFS_POWER if (ac->charger.dev) power_supply_unregister(&ac->charger); -#endif #ifdef CONFIG_ACPI_PROCFS_POWER acpi_ac_remove_fs(device); #endif diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 98417201e9ce..7b8787b490f6 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -42,10 +42,7 @@ #include #include - -#ifdef CONFIG_ACPI_SYSFS_POWER #include -#endif #define PREFIX "ACPI: " @@ -102,9 +99,7 @@ enum { struct acpi_battery { struct mutex lock; -#ifdef CONFIG_ACPI_SYSFS_POWER struct power_supply bat; -#endif struct acpi_device *device; unsigned long update_time; int rate_now; @@ -141,7 +136,6 @@ inline int acpi_battery_present(struct acpi_battery *battery) return battery->device->status.battery_present; } -#ifdef CONFIG_ACPI_SYSFS_POWER static int acpi_battery_technology(struct acpi_battery *battery) { if (!strcasecmp("NiCd", battery->type)) @@ -281,7 +275,6 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, }; -#endif #ifdef CONFIG_ACPI_PROCFS_POWER inline char *acpi_battery_units(struct acpi_battery *battery) @@ -492,7 +485,6 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery) return acpi_battery_set_alarm(battery); } -#ifdef CONFIG_ACPI_SYSFS_POWER static ssize_t acpi_battery_alarm_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -552,7 +544,6 @@ static void sysfs_remove_battery(struct acpi_battery *battery) power_supply_unregister(&battery->bat); battery->bat.dev = NULL; } -#endif static void acpi_battery_quirks(struct acpi_battery *battery) { @@ -568,9 +559,7 @@ static int acpi_battery_update(struct acpi_battery *battery) if (result) return result; if (!acpi_battery_present(battery)) { -#ifdef CONFIG_ACPI_SYSFS_POWER sysfs_remove_battery(battery); -#endif battery->update_time = 0; return 0; } @@ -582,10 +571,8 @@ static int acpi_battery_update(struct acpi_battery *battery) acpi_battery_quirks(battery); acpi_battery_init_alarm(battery); } -#ifdef CONFIG_ACPI_SYSFS_POWER if (!battery->bat.dev) sysfs_add_battery(battery); -#endif return acpi_battery_get_state(battery); } @@ -867,26 +854,20 @@ static void acpi_battery_remove_fs(struct acpi_device *device) static void acpi_battery_notify(struct acpi_device *device, u32 event) { struct acpi_battery *battery = acpi_driver_data(device); -#ifdef CONFIG_ACPI_SYSFS_POWER struct device *old; -#endif if (!battery) return; -#ifdef CONFIG_ACPI_SYSFS_POWER old = battery->bat.dev; -#endif acpi_battery_update(battery); acpi_bus_generate_proc_event(device, event, acpi_battery_present(battery)); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, acpi_battery_present(battery)); -#ifdef CONFIG_ACPI_SYSFS_POWER /* acpi_battery_update could remove power_supply object */ if (old && battery->bat.dev) power_supply_changed(&battery->bat); -#endif } static int acpi_battery_add(struct acpi_device *device) @@ -934,9 +915,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type) #ifdef CONFIG_ACPI_PROCFS_POWER acpi_battery_remove_fs(device); #endif -#ifdef CONFIG_ACPI_SYSFS_POWER sysfs_remove_battery(battery); -#endif mutex_destroy(&battery->lock); kfree(battery); return 0; diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 4ff76e8174eb..e5dbedb16bbf 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -40,10 +40,7 @@ #include #include #include - -#ifdef CONFIG_ACPI_SYSFS_POWER #include -#endif #include "sbshc.h" @@ -85,9 +82,7 @@ static const struct acpi_device_id sbs_device_ids[] = { MODULE_DEVICE_TABLE(acpi, sbs_device_ids); struct acpi_battery { -#ifdef CONFIG_ACPI_SYSFS_POWER struct power_supply bat; -#endif struct acpi_sbs *sbs; #ifdef CONFIG_ACPI_PROCFS_POWER struct proc_dir_entry *proc_entry; @@ -120,9 +115,7 @@ struct acpi_battery { #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); struct acpi_sbs { -#ifdef CONFIG_ACPI_SYSFS_POWER struct power_supply charger; -#endif struct acpi_device *device; struct acpi_smb_hc *hc; struct mutex lock; @@ -166,7 +159,6 @@ static inline int acpi_battery_scale(struct acpi_battery *battery) acpi_battery_ipscale(battery); } -#ifdef CONFIG_ACPI_SYSFS_POWER static int sbs_get_ac_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -313,7 +305,6 @@ static enum power_supply_property sbs_energy_battery_props[] = { POWER_SUPPLY_PROP_MANUFACTURER, }; -#endif /* -------------------------------------------------------------------------- Smart Battery System Management @@ -449,7 +440,6 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs) return result; } -#ifdef CONFIG_ACPI_SYSFS_POWER static ssize_t acpi_battery_alarm_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -479,7 +469,6 @@ static struct device_attribute alarm_attr = { .show = acpi_battery_alarm_show, .store = acpi_battery_alarm_store, }; -#endif /* -------------------------------------------------------------------------- FS Interface (/proc/acpi) @@ -798,7 +787,6 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) &acpi_battery_state_fops, &acpi_battery_alarm_fops, battery); #endif -#ifdef CONFIG_ACPI_SYSFS_POWER battery->bat.name = battery->name; battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; if (!acpi_battery_mode(battery)) { @@ -819,7 +807,6 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) goto end; battery->have_sysfs_alarm = 1; end: -#endif printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), battery->name, battery->present ? "present" : "absent"); @@ -828,17 +815,13 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) static void acpi_battery_remove(struct acpi_sbs *sbs, int id) { -#if defined(CONFIG_ACPI_SYSFS_POWER) || defined(CONFIG_ACPI_PROCFS_POWER) struct acpi_battery *battery = &sbs->battery[id]; -#endif -#ifdef CONFIG_ACPI_SYSFS_POWER if (battery->bat.dev) { if (battery->have_sysfs_alarm) device_remove_file(battery->bat.dev, &alarm_attr); power_supply_unregister(&battery->bat); } -#endif #ifdef CONFIG_ACPI_PROCFS_POWER if (battery->proc_entry) acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir); @@ -859,14 +842,12 @@ static int acpi_charger_add(struct acpi_sbs *sbs) if (result) goto end; #endif -#ifdef CONFIG_ACPI_SYSFS_POWER sbs->charger.name = "sbs-charger"; sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; sbs->charger.properties = sbs_ac_props; sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props); sbs->charger.get_property = sbs_get_ac_property; power_supply_register(&sbs->device->dev, &sbs->charger); -#endif printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line"); @@ -876,10 +857,8 @@ static int acpi_charger_add(struct acpi_sbs *sbs) static void acpi_charger_remove(struct acpi_sbs *sbs) { -#ifdef CONFIG_ACPI_SYSFS_POWER if (sbs->charger.dev) power_supply_unregister(&sbs->charger); -#endif #ifdef CONFIG_ACPI_PROCFS_POWER if (sbs->charger_entry) acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir); @@ -900,9 +879,7 @@ static void acpi_sbs_callback(void *context) ACPI_SBS_NOTIFY_STATUS, sbs->charger_present); #endif -#ifdef CONFIG_ACPI_SYSFS_POWER kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); -#endif } if (sbs->manager_present) { for (id = 0; id < MAX_SBS_BAT; ++id) { @@ -919,9 +896,7 @@ static void acpi_sbs_callback(void *context) ACPI_SBS_NOTIFY_STATUS, bat->present); #endif -#ifdef CONFIG_ACPI_SYSFS_POWER kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); -#endif } } } -- cgit v1.2.3-70-g09d2 From b2a44989c1dbfae409035eaffad4292c27fc7cb8 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:55:03 +0800 Subject: ACPI fan: remove deprecated procfs I/F Remove deprecated ACPI Fan driver procfs interface. The ACPI fan driver (CONFIG_ACPI_FAN) selects the generic thermal sysfs driver (CONFIG_THERMAL) since 2.6.26, so new sysfs I/F is available at /sys/class/thermal/cooling_devicecX/ Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/fan.c | 139 +---------------------------------------------------- 1 file changed, 1 insertion(+), 138 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index d94d2953c974..60049080c869 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -27,8 +27,6 @@ #include #include #include -#include -#include #include #include #include @@ -118,122 +116,6 @@ static struct thermal_cooling_device_ops fan_cooling_ops = { .set_cur_state = fan_set_cur_state, }; -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ -#ifdef CONFIG_ACPI_PROCFS - -static struct proc_dir_entry *acpi_fan_dir; - -static int acpi_fan_read_state(struct seq_file *seq, void *offset) -{ - struct acpi_device *device = seq->private; - int state = 0; - - - if (device) { - if (acpi_bus_get_power(device->handle, &state)) - seq_printf(seq, "status: ERROR\n"); - else - seq_printf(seq, "status: %s\n", - !state ? "on" : "off"); - } - return 0; -} - -static int acpi_fan_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_fan_read_state, PDE(inode)->data); -} - -static ssize_t -acpi_fan_write_state(struct file *file, const char __user * buffer, - size_t count, loff_t * ppos) -{ - int result = 0; - struct seq_file *m = file->private_data; - struct acpi_device *device = m->private; - char state_string[3] = { '\0' }; - - if (count > sizeof(state_string) - 1) - return -EINVAL; - - if (copy_from_user(state_string, buffer, count)) - return -EFAULT; - - state_string[count] = '\0'; - if ((state_string[0] < '0') || (state_string[0] > '3')) - return -EINVAL; - if (state_string[1] == '\n') - state_string[1] = '\0'; - if (state_string[1] != '\0') - return -EINVAL; - - result = acpi_bus_set_power(device->handle, - simple_strtoul(state_string, NULL, 0)); - if (result) - return result; - - return count; -} - -static const struct file_operations acpi_fan_state_ops = { - .open = acpi_fan_state_open_fs, - .read = seq_read, - .write = acpi_fan_write_state, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int acpi_fan_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - - - if (!device) - return -EINVAL; - - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_fan_dir); - if (!acpi_device_dir(device)) - return -ENODEV; - } - - /* 'status' [R/W] */ - entry = proc_create_data(ACPI_FAN_FILE_STATE, - S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), - &acpi_fan_state_ops, - device); - if (!entry) - return -ENODEV; - return 0; -} - -static int acpi_fan_remove_fs(struct acpi_device *device) -{ - - if (acpi_device_dir(device)) { - remove_proc_entry(ACPI_FAN_FILE_STATE, acpi_device_dir(device)); - remove_proc_entry(acpi_device_bid(device), acpi_fan_dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} -#else -static int acpi_fan_add_fs(struct acpi_device *device) -{ - return 0; -} - -static int acpi_fan_remove_fs(struct acpi_device *device) -{ - return 0; -} -#endif /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -284,10 +166,6 @@ static int acpi_fan_add(struct acpi_device *device) dev_err(&device->dev, "Failed to create sysfs link " "'device'\n"); - result = acpi_fan_add_fs(device); - if (result) - goto end; - printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); @@ -303,7 +181,6 @@ static int acpi_fan_remove(struct acpi_device *device, int type) if (!device || !cdev) return -EINVAL; - acpi_fan_remove_fs(device); sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); sysfs_remove_link(&cdev->device.kobj, "device"); thermal_cooling_device_unregister(cdev); @@ -347,19 +224,9 @@ static int __init acpi_fan_init(void) { int result = 0; -#ifdef CONFIG_ACPI_PROCFS - acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir); - if (!acpi_fan_dir) - return -ENODEV; -#endif - result = acpi_bus_register_driver(&acpi_fan_driver); - if (result < 0) { -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); -#endif + if (result < 0) return -ENODEV; - } return 0; } @@ -369,10 +236,6 @@ static void __exit acpi_fan_exit(void) acpi_bus_unregister_driver(&acpi_fan_driver); -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); -#endif - return; } -- cgit v1.2.3-70-g09d2 From c57b62f5b1e6dd69ff8c96f6db7f86ea31c0e21f Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:55:06 +0800 Subject: ACPI thermal: remove deprecated procfs I/F Remove the deprecated ACPI thermal driver procfs I/F, as stated in the changelog of commit 43d9f87b79804f2d75d9d8a81c862b179f055a15 sysfs I/F is available at /sys/class/thermal/thermal_zoneX/ Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/thermal.c | 436 +------------------------------------------------ 1 file changed, 1 insertion(+), 435 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 2f8f17131d9f..5a27b0a31315 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -37,12 +37,6 @@ #include #include #include - -#ifdef CONFIG_ACPI_PROCFS -#include -#include -#endif - #include #include #include @@ -195,61 +189,6 @@ struct acpi_thermal { struct mutex lock; }; -#ifdef CONFIG_ACPI_PROCFS -static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file); -static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file); -static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file); -static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_thermal_write_cooling_mode(struct file *, - const char __user *, size_t, - loff_t *); -static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_thermal_write_polling(struct file *, const char __user *, - size_t, loff_t *); - -static const struct file_operations acpi_thermal_state_fops = { - .owner = THIS_MODULE, - .open = acpi_thermal_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations acpi_thermal_temp_fops = { - .owner = THIS_MODULE, - .open = acpi_thermal_temp_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations acpi_thermal_trip_fops = { - .owner = THIS_MODULE, - .open = acpi_thermal_trip_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations acpi_thermal_cooling_fops = { - .owner = THIS_MODULE, - .open = acpi_thermal_cooling_open_fs, - .read = seq_read, - .write = acpi_thermal_write_cooling_mode, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations acpi_thermal_polling_fops = { - .owner = THIS_MODULE, - .open = acpi_thermal_polling_open_fs, - .read = seq_read, - .write = acpi_thermal_write_polling, - .llseek = seq_lseek, - .release = single_release, -}; -#endif /* CONFIG_ACPI_PROCFS*/ - /* -------------------------------------------------------------------------- Thermal Zone Management -------------------------------------------------------------------------- */ @@ -957,358 +896,6 @@ static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz) } -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ -#ifdef CONFIG_ACPI_PROCFS -static struct proc_dir_entry *acpi_thermal_dir; - -static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_thermal *tz = seq->private; - - - if (!tz) - goto end; - - seq_puts(seq, "state: "); - - if (!tz->state.critical && !tz->state.hot && !tz->state.passive - && !tz->state.active) - seq_puts(seq, "ok\n"); - else { - if (tz->state.critical) - seq_puts(seq, "critical "); - if (tz->state.hot) - seq_puts(seq, "hot "); - if (tz->state.passive) - seq_puts(seq, "passive "); - if (tz->state.active) - seq_printf(seq, "active[%d]", tz->state.active_index); - seq_puts(seq, "\n"); - } - - end: - return 0; -} - -static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_thermal_state_seq_show, PDE(inode)->data); -} - -static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset) -{ - int result = 0; - struct acpi_thermal *tz = seq->private; - - - if (!tz) - goto end; - - result = acpi_thermal_get_temperature(tz); - if (result) - goto end; - - seq_printf(seq, "temperature: %ld C\n", - KELVIN_TO_CELSIUS(tz->temperature)); - - end: - return 0; -} - -static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_thermal_temp_seq_show, PDE(inode)->data); -} - -static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_thermal *tz = seq->private; - struct acpi_device *device; - acpi_status status; - - int i = 0; - int j = 0; - - - if (!tz) - goto end; - - if (tz->trips.critical.flags.valid) - seq_printf(seq, "critical (S5): %ld C%s", - KELVIN_TO_CELSIUS(tz->trips.critical.temperature), - nocrt ? " \n" : "\n"); - - if (tz->trips.hot.flags.valid) - seq_printf(seq, "hot (S4): %ld C%s", - KELVIN_TO_CELSIUS(tz->trips.hot.temperature), - nocrt ? " \n" : "\n"); - - if (tz->trips.passive.flags.valid) { - seq_printf(seq, - "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=", - KELVIN_TO_CELSIUS(tz->trips.passive.temperature), - tz->trips.passive.tc1, tz->trips.passive.tc2, - tz->trips.passive.tsp); - for (j = 0; j < tz->trips.passive.devices.count; j++) { - status = acpi_bus_get_device(tz->trips.passive.devices. - handles[j], &device); - seq_printf(seq, "%4.4s ", status ? "" : - acpi_device_bid(device)); - } - seq_puts(seq, "\n"); - } else { - seq_printf(seq, "passive (forced):"); - if (tz->thermal_zone->forced_passive) - seq_printf(seq, " %i C\n", - tz->thermal_zone->forced_passive / 1000); - else - seq_printf(seq, "\n"); - } - - for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) { - if (!(tz->trips.active[i].flags.valid)) - break; - seq_printf(seq, "active[%d]: %ld C: devices=", - i, - KELVIN_TO_CELSIUS(tz->trips.active[i].temperature)); - for (j = 0; j < tz->trips.active[i].devices.count; j++){ - status = acpi_bus_get_device(tz->trips.active[i]. - devices.handles[j], - &device); - seq_printf(seq, "%4.4s ", status ? "" : - acpi_device_bid(device)); - } - seq_puts(seq, "\n"); - } - - end: - return 0; -} - -static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_thermal_trip_seq_show, PDE(inode)->data); -} - -static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_thermal *tz = seq->private; - - - if (!tz) - goto end; - - if (!tz->flags.cooling_mode) - seq_puts(seq, "\n"); - else - seq_puts(seq, "0 - Active; 1 - Passive\n"); - - end: - return 0; -} - -static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_thermal_cooling_seq_show, - PDE(inode)->data); -} - -static ssize_t -acpi_thermal_write_cooling_mode(struct file *file, - const char __user * buffer, - size_t count, loff_t * ppos) -{ - struct seq_file *m = file->private_data; - struct acpi_thermal *tz = m->private; - int result = 0; - char mode_string[12] = { '\0' }; - - - if (!tz || (count > sizeof(mode_string) - 1)) - return -EINVAL; - - if (!tz->flags.cooling_mode) - return -ENODEV; - - if (copy_from_user(mode_string, buffer, count)) - return -EFAULT; - - mode_string[count] = '\0'; - - result = acpi_thermal_set_cooling_mode(tz, - simple_strtoul(mode_string, NULL, - 0)); - if (result) - return result; - - acpi_thermal_check(tz); - - return count; -} - -static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_thermal *tz = seq->private; - - - if (!tz) - goto end; - - if (!tz->thermal_zone->polling_delay) { - seq_puts(seq, "\n"); - goto end; - } - - seq_printf(seq, "polling frequency: %d seconds\n", - (tz->thermal_zone->polling_delay / 1000)); - - end: - return 0; -} - -static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_thermal_polling_seq_show, - PDE(inode)->data); -} - -static int acpi_thermal_set_polling(struct acpi_thermal *tz, int seconds) -{ - if (!tz) - return -EINVAL; - - /* Convert value to deci-seconds */ - tz->polling_frequency = seconds * 10; - - tz->thermal_zone->polling_delay = seconds * 1000; - - if (tz->tz_enabled) - thermal_zone_device_update(tz->thermal_zone); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Polling frequency set to %lu seconds\n", - tz->polling_frequency/10)); - - return 0; -} - -static ssize_t -acpi_thermal_write_polling(struct file *file, - const char __user * buffer, - size_t count, loff_t * ppos) -{ - struct seq_file *m = file->private_data; - struct acpi_thermal *tz = m->private; - int result = 0; - char polling_string[12] = { '\0' }; - int seconds = 0; - - - if (!tz || (count > sizeof(polling_string) - 1)) - return -EINVAL; - - if (copy_from_user(polling_string, buffer, count)) - return -EFAULT; - - polling_string[count] = '\0'; - - seconds = simple_strtoul(polling_string, NULL, 0); - - result = acpi_thermal_set_polling(tz, seconds); - if (result) - return result; - - acpi_thermal_check(tz); - - return count; -} - -static int acpi_thermal_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - - - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_thermal_dir); - if (!acpi_device_dir(device)) - return -ENODEV; - } - - /* 'state' [R] */ - entry = proc_create_data(ACPI_THERMAL_FILE_STATE, - S_IRUGO, acpi_device_dir(device), - &acpi_thermal_state_fops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - - /* 'temperature' [R] */ - entry = proc_create_data(ACPI_THERMAL_FILE_TEMPERATURE, - S_IRUGO, acpi_device_dir(device), - &acpi_thermal_temp_fops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - - /* 'trip_points' [R] */ - entry = proc_create_data(ACPI_THERMAL_FILE_TRIP_POINTS, - S_IRUGO, - acpi_device_dir(device), - &acpi_thermal_trip_fops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - - /* 'cooling_mode' [R/W] */ - entry = proc_create_data(ACPI_THERMAL_FILE_COOLING_MODE, - S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), - &acpi_thermal_cooling_fops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - - /* 'polling_frequency' [R/W] */ - entry = proc_create_data(ACPI_THERMAL_FILE_POLLING_FREQ, - S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), - &acpi_thermal_polling_fops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - return 0; -} - -static int acpi_thermal_remove_fs(struct acpi_device *device) -{ - - if (acpi_device_dir(device)) { - remove_proc_entry(ACPI_THERMAL_FILE_POLLING_FREQ, - acpi_device_dir(device)); - remove_proc_entry(ACPI_THERMAL_FILE_COOLING_MODE, - acpi_device_dir(device)); - remove_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS, - acpi_device_dir(device)); - remove_proc_entry(ACPI_THERMAL_FILE_TEMPERATURE, - acpi_device_dir(device)); - remove_proc_entry(ACPI_THERMAL_FILE_STATE, - acpi_device_dir(device)); - remove_proc_entry(acpi_device_bid(device), acpi_thermal_dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} -#else -static inline int acpi_thermal_add_fs(struct acpi_device *device) { return 0; } -static inline int acpi_thermal_remove_fs(struct acpi_device *device) -{ - return 0; -} -#endif /* CONFIG_ACPI_PROCFS */ /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -1428,17 +1015,11 @@ static int acpi_thermal_add(struct acpi_device *device) if (result) goto free_memory; - result = acpi_thermal_add_fs(device); - if (result) - goto unregister_thermal_zone; - printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device), acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature)); goto end; -unregister_thermal_zone: - thermal_zone_device_unregister(tz->thermal_zone); free_memory: kfree(tz); end: @@ -1454,7 +1035,6 @@ static int acpi_thermal_remove(struct acpi_device *device, int type) tz = acpi_driver_data(device); - acpi_thermal_remove_fs(device); acpi_thermal_unregister_thermal_zone(tz); mutex_destroy(&tz->lock); kfree(tz); @@ -1580,19 +1160,9 @@ static int __init acpi_thermal_init(void) return -ENODEV; } -#ifdef CONFIG_ACPI_PROCFS - acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir); - if (!acpi_thermal_dir) - return -ENODEV; -#endif - result = acpi_bus_register_driver(&acpi_thermal_driver); - if (result < 0) { -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir); -#endif + if (result < 0) return -ENODEV; - } return 0; } @@ -1602,10 +1172,6 @@ static void __exit acpi_thermal_exit(void) acpi_bus_unregister_driver(&acpi_thermal_driver); -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir); -#endif - return; } -- cgit v1.2.3-70-g09d2 From 39fe394d05be43481ceac8b3db19dfd5189097f6 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:55:11 +0800 Subject: ACPI video: remove deprecated procfs I/F Remove the deprecated ACPI video driver procfs I/F, as stated in the changelog of commit 6e37c658aefa57c472b2dbf1de88dbd3c67cdb52 New sysfs I/F is available at /sys/class/backlight/ Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/video.c | 771 +-------------------------------------------------- 1 file changed, 1 insertion(+), 770 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 67dec0c675aa..5cd0228d2daa 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -30,8 +30,6 @@ #include #include #include -#include -#include #include #include #include @@ -152,9 +150,6 @@ struct acpi_video_bus { struct acpi_video_bus_flags flags; struct list_head video_device_list; struct mutex device_list_lock; /* protects video_device_list */ -#ifdef CONFIG_ACPI_PROCFS - struct proc_dir_entry *dir; -#endif struct input_dev *input; char phys[32]; /* for input device */ struct notifier_block pm_nb; @@ -210,108 +205,6 @@ struct acpi_video_device { struct output_device *output_dev; }; -#ifdef CONFIG_ACPI_PROCFS -/* bus */ -static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); -static const struct file_operations acpi_video_bus_info_fops = { - .owner = THIS_MODULE, - .open = acpi_video_bus_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); -static const struct file_operations acpi_video_bus_ROM_fops = { - .owner = THIS_MODULE, - .open = acpi_video_bus_ROM_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_bus_POST_info_open_fs(struct inode *inode, - struct file *file); -static const struct file_operations acpi_video_bus_POST_info_fops = { - .owner = THIS_MODULE, - .open = acpi_video_bus_POST_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_video_bus_write_POST(struct file *file, - const char __user *buffer, size_t count, loff_t *data); -static const struct file_operations acpi_video_bus_POST_fops = { - .owner = THIS_MODULE, - .open = acpi_video_bus_POST_open_fs, - .read = seq_read, - .write = acpi_video_bus_write_POST, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_video_bus_write_DOS(struct file *file, - const char __user *buffer, size_t count, loff_t *data); -static const struct file_operations acpi_video_bus_DOS_fops = { - .owner = THIS_MODULE, - .open = acpi_video_bus_DOS_open_fs, - .read = seq_read, - .write = acpi_video_bus_write_DOS, - .llseek = seq_lseek, - .release = single_release, -}; - -/* device */ -static int acpi_video_device_info_open_fs(struct inode *inode, - struct file *file); -static const struct file_operations acpi_video_device_info_fops = { - .owner = THIS_MODULE, - .open = acpi_video_device_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_device_state_open_fs(struct inode *inode, - struct file *file); -static ssize_t acpi_video_device_write_state(struct file *file, - const char __user *buffer, size_t count, loff_t *data); -static const struct file_operations acpi_video_device_state_fops = { - .owner = THIS_MODULE, - .open = acpi_video_device_state_open_fs, - .read = seq_read, - .write = acpi_video_device_write_state, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_device_brightness_open_fs(struct inode *inode, - struct file *file); -static ssize_t acpi_video_device_write_brightness(struct file *file, - const char __user *buffer, size_t count, loff_t *data); -static const struct file_operations acpi_video_device_brightness_fops = { - .owner = THIS_MODULE, - .open = acpi_video_device_brightness_open_fs, - .read = seq_read, - .write = acpi_video_device_write_brightness, - .llseek = seq_lseek, - .release = single_release, -}; - -static int acpi_video_device_EDID_open_fs(struct inode *inode, - struct file *file); -static const struct file_operations acpi_video_device_EDID_fops = { - .owner = THIS_MODULE, - .open = acpi_video_device_EDID_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif /* CONFIG_ACPI_PROCFS */ - static const char device_decode[][30] = { "motherboard VGA device", "PCI VGA device", @@ -1110,646 +1003,6 @@ static int acpi_video_bus_check(struct acpi_video_bus *video) return status; } -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ -#ifdef CONFIG_ACPI_PROCFS - -static struct proc_dir_entry *acpi_video_dir; - -/* video devices */ - -static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_device *dev = seq->private; - - - if (!dev) - goto end; - - seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); - seq_printf(seq, "type: "); - if (dev->flags.crt) - seq_printf(seq, "CRT\n"); - else if (dev->flags.lcd) - seq_printf(seq, "LCD\n"); - else if (dev->flags.tvout) - seq_printf(seq, "TVOUT\n"); - else if (dev->flags.dvi) - seq_printf(seq, "DVI\n"); - else - seq_printf(seq, "UNKNOWN\n"); - - seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); - - end: - return 0; -} - -static int -acpi_video_device_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_device_info_seq_show, - PDE(inode)->data); -} - -static int -acpi_video_device_query(struct acpi_video_device *device, - unsigned long long *state) -{ - int status; - - status = acpi_evaluate_integer(device->dev->handle, "_DGS", - NULL, state); - - return status; -} - -static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) -{ - int status; - struct acpi_video_device *dev = seq->private; - unsigned long long state; - - - if (!dev) - goto end; - - status = acpi_video_device_get_state(dev, &state); - seq_printf(seq, "state: "); - if (ACPI_SUCCESS(status)) - seq_printf(seq, "0x%02llx\n", state); - else - seq_printf(seq, "\n"); - - status = acpi_video_device_query(dev, &state); - seq_printf(seq, "query: "); - if (ACPI_SUCCESS(status)) - seq_printf(seq, "0x%02llx\n", state); - else - seq_printf(seq, "\n"); - - end: - return 0; -} - -static int -acpi_video_device_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_device_state_seq_show, - PDE(inode)->data); -} - -static ssize_t -acpi_video_device_write_state(struct file *file, - const char __user * buffer, - size_t count, loff_t * data) -{ - int status; - struct seq_file *m = file->private_data; - struct acpi_video_device *dev = m->private; - char str[12] = { 0 }; - u32 state = 0; - - - if (!dev || count >= sizeof(str)) - return -EINVAL; - - if (copy_from_user(str, buffer, count)) - return -EFAULT; - - str[count] = 0; - state = simple_strtoul(str, NULL, 0); - state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); - - status = acpi_video_device_set_state(dev, state); - - if (status) - return -EFAULT; - - return count; -} - -static int -acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_device *dev = seq->private; - int i; - - - if (!dev || !dev->brightness) { - seq_printf(seq, "\n"); - return 0; - } - - seq_printf(seq, "levels: "); - for (i = 2; i < dev->brightness->count; i++) - seq_printf(seq, " %d", dev->brightness->levels[i]); - seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); - - return 0; -} - -static int -acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_device_brightness_seq_show, - PDE(inode)->data); -} - -static ssize_t -acpi_video_device_write_brightness(struct file *file, - const char __user * buffer, - size_t count, loff_t * data) -{ - struct seq_file *m = file->private_data; - struct acpi_video_device *dev = m->private; - char str[5] = { 0 }; - unsigned int level = 0; - int i; - - - if (!dev || !dev->brightness || count >= sizeof(str)) - return -EINVAL; - - if (copy_from_user(str, buffer, count)) - return -EFAULT; - - str[count] = 0; - level = simple_strtoul(str, NULL, 0); - - if (level > 100) - return -EFAULT; - - /* validate through the list of available levels */ - for (i = 2; i < dev->brightness->count; i++) - if (level == dev->brightness->levels[i]) { - if (!acpi_video_device_lcd_set_level(dev, level)) - return count; - break; - } - - return -EINVAL; -} - -static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_device *dev = seq->private; - int status; - int i; - union acpi_object *edid = NULL; - - - if (!dev) - goto out; - - status = acpi_video_device_EDID(dev, &edid, 128); - if (ACPI_FAILURE(status)) { - status = acpi_video_device_EDID(dev, &edid, 256); - } - - if (ACPI_FAILURE(status)) { - goto out; - } - - if (edid && edid->type == ACPI_TYPE_BUFFER) { - for (i = 0; i < edid->buffer.length; i++) - seq_putc(seq, edid->buffer.pointer[i]); - } - - out: - if (!edid) - seq_printf(seq, "\n"); - else - kfree(edid); - - return 0; -} - -static int -acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_device_EDID_seq_show, - PDE(inode)->data); -} - -static int acpi_video_device_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry, *device_dir; - struct acpi_video_device *vid_dev; - - vid_dev = acpi_driver_data(device); - if (!vid_dev) - return -ENODEV; - - device_dir = proc_mkdir(acpi_device_bid(device), - vid_dev->video->dir); - if (!device_dir) - return -ENOMEM; - - /* 'info' [R] */ - entry = proc_create_data("info", S_IRUGO, device_dir, - &acpi_video_device_info_fops, acpi_driver_data(device)); - if (!entry) - goto err_remove_dir; - - /* 'state' [R/W] */ - entry = proc_create_data("state", S_IFREG | S_IRUGO | S_IWUSR, - device_dir, - &acpi_video_device_state_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_info; - - /* 'brightness' [R/W] */ - entry = proc_create_data("brightness", S_IFREG | S_IRUGO | S_IWUSR, - device_dir, - &acpi_video_device_brightness_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_state; - - /* 'EDID' [R] */ - entry = proc_create_data("EDID", S_IRUGO, device_dir, - &acpi_video_device_EDID_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_brightness; - - acpi_device_dir(device) = device_dir; - - return 0; - - err_remove_brightness: - remove_proc_entry("brightness", device_dir); - err_remove_state: - remove_proc_entry("state", device_dir); - err_remove_info: - remove_proc_entry("info", device_dir); - err_remove_dir: - remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); - return -ENOMEM; -} - -static int acpi_video_device_remove_fs(struct acpi_device *device) -{ - struct acpi_video_device *vid_dev; - struct proc_dir_entry *device_dir; - - vid_dev = acpi_driver_data(device); - if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) - return -ENODEV; - - device_dir = acpi_device_dir(device); - if (device_dir) { - remove_proc_entry("info", device_dir); - remove_proc_entry("state", device_dir); - remove_proc_entry("brightness", device_dir); - remove_proc_entry("EDID", device_dir); - remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} - -/* video bus */ -static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_bus *video = seq->private; - - - if (!video) - goto end; - - seq_printf(seq, "Switching heads: %s\n", - video->flags.multihead ? "yes" : "no"); - seq_printf(seq, "Video ROM: %s\n", - video->flags.rom ? "yes" : "no"); - seq_printf(seq, "Device to be POSTed on boot: %s\n", - video->flags.post ? "yes" : "no"); - - end: - return 0; -} - -static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_bus_info_seq_show, - PDE(inode)->data); -} - -static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_bus *video = seq->private; - - - if (!video) - goto end; - - printk(KERN_INFO PREFIX "Please implement %s\n", __func__); - seq_printf(seq, "\n"); - - end: - return 0; -} - -static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); -} - -static int -acpi_video_bus_POST_options(struct acpi_video_bus *video, - unsigned long long *options) -{ - int status; - - status = acpi_evaluate_integer(video->device->handle, "_VPO", - NULL, options); - *options &= 3; - - return status; -} - -static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_bus *video = seq->private; - unsigned long long options; - int status; - - - if (!video) - goto end; - - status = acpi_video_bus_POST_options(video, &options); - if (ACPI_SUCCESS(status)) { - if (!(options & 1)) { - printk(KERN_WARNING PREFIX - "The motherboard VGA device is not listed as a possible POST device.\n"); - printk(KERN_WARNING PREFIX - "This indicates a BIOS bug. Please contact the manufacturer.\n"); - } - printk(KERN_WARNING "%llx\n", options); - seq_printf(seq, "can POST: "); - if (options & 2) - seq_printf(seq, " "); - if (options & 4) - seq_printf(seq, " "); - seq_putc(seq, '\n'); - } else - seq_printf(seq, "\n"); - end: - return 0; -} - -static int -acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_bus_POST_info_seq_show, - PDE(inode)->data); -} - -static int -acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long long *id) -{ - int status; - - status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); - - return status; -} - -static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_bus *video = seq->private; - int status; - unsigned long long id; - - - if (!video) - goto end; - - status = acpi_video_bus_get_POST(video, &id); - if (!ACPI_SUCCESS(status)) { - seq_printf(seq, "\n"); - goto end; - } - seq_printf(seq, "device POSTed is <%s>\n", device_decode[id & 3]); - - end: - return 0; -} - -static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_video_bus *video = seq->private; - - - seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); - - return 0; -} - -static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_bus_POST_seq_show, - PDE(inode)->data); -} - -static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); -} - -static int -acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) -{ - int status; - unsigned long long tmp; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - - - arg0.integer.value = option; - - status = acpi_evaluate_integer(video->device->handle, "_SPD", - &args, &tmp); - if (ACPI_SUCCESS(status)) - status = tmp ? (-EINVAL) : (AE_OK); - - return status; -} - -static ssize_t -acpi_video_bus_write_POST(struct file *file, - const char __user * buffer, - size_t count, loff_t * data) -{ - int status; - struct seq_file *m = file->private_data; - struct acpi_video_bus *video = m->private; - char str[12] = { 0 }; - unsigned long long opt, options; - - - if (!video || count >= sizeof(str)) - return -EINVAL; - - status = acpi_video_bus_POST_options(video, &options); - if (!ACPI_SUCCESS(status)) - return -EINVAL; - - if (copy_from_user(str, buffer, count)) - return -EFAULT; - - str[count] = 0; - opt = strtoul(str, NULL, 0); - if (opt > 3) - return -EFAULT; - - /* just in case an OEM 'forgot' the motherboard... */ - options |= 1; - - if (options & (1ul << opt)) { - status = acpi_video_bus_set_POST(video, opt); - if (!ACPI_SUCCESS(status)) - return -EFAULT; - - } - - return count; -} - -static ssize_t -acpi_video_bus_write_DOS(struct file *file, - const char __user * buffer, - size_t count, loff_t * data) -{ - int status; - struct seq_file *m = file->private_data; - struct acpi_video_bus *video = m->private; - char str[12] = { 0 }; - unsigned long opt; - - - if (!video || count >= sizeof(str)) - return -EINVAL; - - if (copy_from_user(str, buffer, count)) - return -EFAULT; - - str[count] = 0; - opt = strtoul(str, NULL, 0); - if (opt > 7) - return -EFAULT; - - status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); - - if (!ACPI_SUCCESS(status)) - return -EFAULT; - - return count; -} - -static int acpi_video_bus_add_fs(struct acpi_device *device) -{ - struct acpi_video_bus *video = acpi_driver_data(device); - struct proc_dir_entry *device_dir; - struct proc_dir_entry *entry; - - device_dir = proc_mkdir(acpi_device_bid(device), acpi_video_dir); - if (!device_dir) - return -ENOMEM; - - /* 'info' [R] */ - entry = proc_create_data("info", S_IRUGO, device_dir, - &acpi_video_bus_info_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_dir; - - /* 'ROM' [R] */ - entry = proc_create_data("ROM", S_IRUGO, device_dir, - &acpi_video_bus_ROM_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_info; - - /* 'POST_info' [R] */ - entry = proc_create_data("POST_info", S_IRUGO, device_dir, - &acpi_video_bus_POST_info_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_rom; - - /* 'POST' [R/W] */ - entry = proc_create_data("POST", S_IFREG | S_IRUGO | S_IWUSR, - device_dir, - &acpi_video_bus_POST_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_post_info; - - /* 'DOS' [R/W] */ - entry = proc_create_data("DOS", S_IFREG | S_IRUGO | S_IWUSR, - device_dir, - &acpi_video_bus_DOS_fops, - acpi_driver_data(device)); - if (!entry) - goto err_remove_post; - - video->dir = acpi_device_dir(device) = device_dir; - return 0; - - err_remove_post: - remove_proc_entry("POST", device_dir); - err_remove_post_info: - remove_proc_entry("POST_info", device_dir); - err_remove_rom: - remove_proc_entry("ROM", device_dir); - err_remove_info: - remove_proc_entry("info", device_dir); - err_remove_dir: - remove_proc_entry(acpi_device_bid(device), acpi_video_dir); - return -ENOMEM; -} - -static int acpi_video_bus_remove_fs(struct acpi_device *device) -{ - struct proc_dir_entry *device_dir = acpi_device_dir(device); - - if (device_dir) { - remove_proc_entry("info", device_dir); - remove_proc_entry("ROM", device_dir); - remove_proc_entry("POST_info", device_dir); - remove_proc_entry("POST", device_dir); - remove_proc_entry("DOS", device_dir); - remove_proc_entry(acpi_device_bid(device), acpi_video_dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} -#else -static inline int acpi_video_device_add_fs(struct acpi_device *device) -{ - return 0; -} -static inline int acpi_video_device_remove_fs(struct acpi_device *device) -{ - return 0; -} -static inline int acpi_video_bus_add_fs(struct acpi_device *device) -{ - return 0; -} -static inline int acpi_video_bus_remove_fs(struct acpi_device *device) -{ - return 0; -} -#endif /* CONFIG_ACPI_PROCFS */ - /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -1877,8 +1130,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device, list_add_tail(&data->entry, &video->video_device_list); mutex_unlock(&video->device_list_lock); - acpi_video_device_add_fs(device); - return 0; } @@ -2181,8 +1432,6 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) if (!device || !device->video) return -ENOENT; - acpi_video_device_remove_fs(device->dev); - status = acpi_remove_notify_handler(device->dev->handle, ACPI_DEVICE_NOTIFY, acpi_video_device_notify); @@ -2466,10 +1715,6 @@ static int acpi_video_bus_add(struct acpi_device *device) if (error) goto err_free_video; - error = acpi_video_bus_add_fs(device); - if (error) - goto err_free_video; - mutex_init(&video->device_list_lock); INIT_LIST_HEAD(&video->video_device_list); @@ -2522,7 +1767,6 @@ static int acpi_video_bus_add(struct acpi_device *device) acpi_video_bus_stop_devices(video); acpi_video_bus_put_devices(video); kfree(video->attached_array); - acpi_video_bus_remove_fs(device); err_free_video: kfree(video); device->driver_data = NULL; @@ -2544,7 +1788,6 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type) acpi_video_bus_stop_devices(video); acpi_video_bus_put_devices(video); - acpi_video_bus_remove_fs(device); input_unregister_device(video->input); kfree(video->attached_array); @@ -2584,17 +1827,9 @@ int acpi_video_register(void) return 0; } -#ifdef CONFIG_ACPI_PROCFS - acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); - if (!acpi_video_dir) - return -ENODEV; -#endif - result = acpi_bus_register_driver(&acpi_video_bus); - if (result < 0) { - remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); + if (result < 0) return -ENODEV; - } /* * When the acpi_video_bus is loaded successfully, increase @@ -2617,10 +1852,6 @@ void acpi_video_unregister(void) } acpi_bus_unregister_driver(&acpi_video_bus); -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); -#endif - register_count = 0; return; -- cgit v1.2.3-70-g09d2 From d5c6887c7fbaf7a149c3bf441338fa833c529fb4 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:55:15 +0800 Subject: ACPI processor: make /proc/acpi/processor/*/throttle depends on CONFIG_ACPI_PROCFS As a feature that would only be used when system is overheating, the processor t-state control should not be exported to user space. Make /proc/acpi/processor/*/throttle depends on CONFIG_ACPI_PROCFS, which is cleared by default. And we will remove this I/F in 2.6.38. Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/processor_driver.c | 20 +++++++++++++++++++- drivers/acpi/processor_throttling.c | 4 ++++ 2 files changed, 23 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 347eb21b2353..356c320bdd08 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -40,8 +40,10 @@ #include #include #include +#ifdef CONFIG_ACPI_PROCFS #include #include +#endif #include #include #include @@ -244,6 +246,7 @@ static int acpi_processor_errata(struct acpi_processor *pr) return result; } +#ifdef CONFIG_ACPI_PROCFS static struct proc_dir_entry *acpi_processor_dir = NULL; static int __cpuinit acpi_processor_add_fs(struct acpi_device *device) @@ -280,7 +283,16 @@ static int acpi_processor_remove_fs(struct acpi_device *device) return 0; } - +#else +static inline int acpi_processor_add_fs(struct acpi_device *device) +{ + return 0; +} +static inline int acpi_processor_remove_fs(struct acpi_device *device) +{ + return 0; +} +#endif /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -842,9 +854,11 @@ static int __init acpi_processor_init(void) memset(&errata, 0, sizeof(errata)); +#ifdef CONFIG_ACPI_PROCFS acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir); if (!acpi_processor_dir) return -ENOMEM; +#endif if (!cpuidle_register_driver(&acpi_idle_driver)) { printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n", @@ -871,7 +885,9 @@ static int __init acpi_processor_init(void) out_cpuidle: cpuidle_unregister_driver(&acpi_idle_driver); +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); +#endif return result; } @@ -891,7 +907,9 @@ static void __exit acpi_processor_exit(void) cpuidle_unregister_driver(&acpi_idle_driver); +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); +#endif return; } diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 730863855ed5..ff3632717c51 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -32,8 +32,10 @@ #include #include #include +#ifdef CONFIG_ACPI_PROCFS #include #include +#endif #include #include @@ -1214,6 +1216,7 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) return result; } +#ifdef CONFIG_ACPI_PROCFS /* proc interface */ static int acpi_processor_throttling_seq_show(struct seq_file *seq, void *offset) @@ -1322,3 +1325,4 @@ const struct file_operations acpi_processor_throttling_fops = { .llseek = seq_lseek, .release = single_release, }; +#endif -- cgit v1.2.3-70-g09d2 From 03e7c3432d40d067476eaf49ede29128b637998f Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 8 Oct 2010 13:55:17 +0800 Subject: ACPI: remove unused declaration of proc_fs.h Remove unused declaration of proc_fs.h. Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/pci_irq.c | 1 - drivers/acpi/pci_link.c | 1 - drivers/acpi/pci_root.c | 1 - 3 files changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index e4804fb05e23..f907cfbfa13c 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 8d47a5846aeb..9ff80a7e9f6a 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -34,7 +34,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 3ba8d1f44a73..96668ad09622 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3-70-g09d2 From 3989170f8e3c1bd71d8f7ec6e3d52e46815ee096 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 18 Oct 2010 08:43:13 +0800 Subject: ACPICA: Comment update; no functional change Add a usage note to InstallAddressSpaceHandler. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/evxfregn.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 541cbc1544d5..ce9314f79451 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -64,6 +64,12 @@ ACPI_MODULE_NAME("evxfregn") * * DESCRIPTION: Install a handler for all op_regions of a given space_id. * + * NOTE: This function should only be called after acpi_enable_subsystem has + * been called. This is because any _REG methods associated with the Space ID + * are executed here, and these methods can only be safely executed after + * the default handlers have been installed and the hardware has been + * initialized (via acpi_enable_subsystem.) + * ******************************************************************************/ acpi_status acpi_install_address_space_handler(acpi_handle device, -- cgit v1.2.3-70-g09d2 From 81256669aaaa8b06a617f8d0613cb7fb24f8b910 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 18 Oct 2010 08:44:34 +0800 Subject: ACPICA: Change type of _TZ from ThermalZone to Device The type of ThermalZone was confusing hosts as they process the various ThermalZone objects. ACPICA BZ 876. http://www.acpica.org/bugzilla/show_bug.cgi?id=876 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/utglobal.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 45f63340ca5f..4a5dcaa268de 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -154,14 +154,16 @@ ACPI_EXPORT_SYMBOL(acpi_format_exception) * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run * during the initialization sequence. * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to - * perform a Notify() operation on it. + * perform a Notify() operation on it. 09/2010: Changed to type Device. + * This still allows notifies, but does not confuse host code that + * searches for valid thermal_zone objects. */ const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = { {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL}, {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL}, {"_SB_", ACPI_TYPE_DEVICE, NULL}, {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL}, - {"_TZ_", ACPI_TYPE_THERMAL, NULL}, + {"_TZ_", ACPI_TYPE_DEVICE, NULL}, {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL}, {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME}, {"_GL_", ACPI_TYPE_MUTEX, (char *)1}, -- cgit v1.2.3-70-g09d2 From 34cf66e724a2bf0a406d59b18f5bfeed746d7979 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 18 Oct 2010 08:47:16 +0800 Subject: ACPICA: Eliminate duplicate code in acpi_ut_execute_* functions Now that the nsrepair code automatically repairs _HID-related strings, this type of code is no longer needed in acpi_ut_execute_HID, acpi_ut_execute_CID, and acpi_ut_execute_UID. ACPICA BZ 878. http://www.acpica.org/bugzilla/show_bug.cgi?id=878 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/utids.c | 45 ++++----------------------------------------- 1 file changed, 4 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c index 1397fadd0d4b..d2906328535d 100644 --- a/drivers/acpi/acpica/utids.c +++ b/drivers/acpi/acpica/utids.c @@ -48,42 +48,6 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utids") -/* Local prototypes */ -static void acpi_ut_copy_id_string(char *destination, char *source); - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_id_string - * - * PARAMETERS: Destination - Where to copy the string - * Source - Source string - * - * RETURN: None - * - * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods. - * Performs removal of a leading asterisk if present -- workaround - * for a known issue on a bunch of machines. - * - ******************************************************************************/ - -static void acpi_ut_copy_id_string(char *destination, char *source) -{ - - /* - * Workaround for ID strings that have a leading asterisk. This construct - * is not allowed by the ACPI specification (ID strings must be - * alphanumeric), but enough existing machines have this embedded in their - * ID strings that the following code is useful. - */ - if (*source == '*') { - source++; - } - - /* Do the actual copy */ - - ACPI_STRCPY(destination, source); -} - /******************************************************************************* * * FUNCTION: acpi_ut_execute_HID @@ -101,7 +65,6 @@ static void acpi_ut_copy_id_string(char *destination, char *source) * NOTE: Internal function, no parameter validation * ******************************************************************************/ - acpi_status acpi_ut_execute_HID(struct acpi_namespace_node *device_node, struct acpica_device_id **return_id) @@ -147,7 +110,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node, if (obj_desc->common.type == ACPI_TYPE_INTEGER) { acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value); } else { - acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer); + ACPI_STRCPY(hid->string, obj_desc->string.pointer); } hid->length = length; @@ -224,7 +187,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node, if (obj_desc->common.type == ACPI_TYPE_INTEGER) { acpi_ex_integer_to_string(uid->string, obj_desc->integer.value); } else { - acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer); + ACPI_STRCPY(uid->string, obj_desc->string.pointer); } uid->length = length; @@ -357,8 +320,8 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node, /* Copy the String CID from the returned object */ - acpi_ut_copy_id_string(next_id_string, - cid_objects[i]->string.pointer); + ACPI_STRCPY(next_id_string, + cid_objects[i]->string.pointer); length = cid_objects[i]->string.length + 1; } -- cgit v1.2.3-70-g09d2 From 23ebbf07068f84b7ed119a0bef4a3f0ebb82c894 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 18 Oct 2010 08:50:47 +0800 Subject: ACPICA: Add Vista SP2 to supported _OSI strings Added "Windows 2006 SP2" for Vista SP2. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/aclocal.h | 3 ++- drivers/acpi/acpica/utosi.c | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 04ce32272546..1bb18c0d0881 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -908,7 +908,8 @@ struct acpi_bit_register_info { #define ACPI_OSI_WIN_VISTA 0x07 #define ACPI_OSI_WINSRV_2008 0x08 #define ACPI_OSI_WIN_VISTA_SP1 0x09 -#define ACPI_OSI_WIN_7 0x0A +#define ACPI_OSI_WIN_VISTA_SP2 0x0A +#define ACPI_OSI_WIN_7 0x0B #define ACPI_ALWAYS_ILLEGAL 0x00 diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 0a37950c96aa..18c59a85fdca 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -71,6 +71,7 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = { {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */ {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */ {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */ + {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */ {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ /* Feature Group Strings */ -- cgit v1.2.3-70-g09d2 From 49b3c1e04e1dd3cd9a428b0d8367193b73e472c1 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 18 Oct 2010 09:38:36 +0800 Subject: ACPICA: Clear PCIEXP_WAKE_STS when clearing ACPI events When clearing status bits via acpi_hw_clear_acpi_status, also clear the PCIEXP_WAKE_STS bit. Original change from Colin King. ACPICA BZ 880. http://www.acpica.org/bugzilla/show_bug.cgi?id=880 http://bugs.launchpad.net/bugs/613381 Signed-off-by: Colin Ian King Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/aclocal.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 1bb18c0d0881..8acf1e8e479f 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -854,6 +854,7 @@ struct acpi_bit_register_info { ACPI_BITMASK_POWER_BUTTON_STATUS | \ ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ ACPI_BITMASK_RT_CLOCK_STATUS | \ + ACPI_BITMASK_PCIEXP_WAKE_STATUS | \ ACPI_BITMASK_WAKE_STATUS) #define ACPI_BITMASK_TIMER_ENABLE 0x0001 -- cgit v1.2.3-70-g09d2 From a4084c147bd06ecc13d787eec626ff1faf8f5851 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 10 Oct 2010 14:54:52 +0200 Subject: ACPI: Only processor needs CPU_IDLE ACPI support itself doesn't need CPU_IDLE, only ACPI_PROCESSOR does, so only ACPI_PROCESSOR should select CPU_IDLE. Signed-off-by: Jean Delvare Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 88681aca88c5..79f4178c4719 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -9,7 +9,6 @@ menuconfig ACPI depends on PCI depends on PM select PNP - select CPU_IDLE default y help Advanced Configuration and Power Interface (ACPI) support for @@ -206,6 +205,7 @@ config ACPI_DOCK config ACPI_PROCESSOR tristate "Processor" select THERMAL + select CPU_IDLE default y help This driver installs ACPI as the idle handler for Linux and uses -- cgit v1.2.3-70-g09d2 From 5ba8b1c6fe40c314a02e28553c25552d8f1442e7 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 18 Oct 2010 08:42:48 -0700 Subject: ACPI: remove dead code Found by running make namespacecheck on linux-next Signed-off-by: Stephen Hemminger Signed-off-by: Len Brown --- drivers/acpi/osl.c | 25 --------- drivers/acpi/processor_driver.c | 2 - drivers/acpi/processor_thermal.c | 107 --------------------------------------- include/acpi/acpi_drivers.h | 2 - include/acpi/acpiosxf.h | 2 - include/linux/acpi.h | 8 --- 6 files changed, 146 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 65b25a303b86..82097fd5a75b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -779,16 +779,6 @@ void acpi_os_wait_events_complete(void *context) EXPORT_SYMBOL(acpi_os_wait_events_complete); -/* - * Allocate the memory for a spinlock and initialize it. - */ -acpi_status acpi_os_create_lock(acpi_spinlock * handle) -{ - spin_lock_init(*handle); - - return AE_OK; -} - /* * Deallocate the memory for a spinlock. */ @@ -1152,21 +1142,6 @@ int acpi_check_region(resource_size_t start, resource_size_t n, } EXPORT_SYMBOL(acpi_check_region); -int acpi_check_mem_region(resource_size_t start, resource_size_t n, - const char *name) -{ - struct resource res = { - .start = start, - .end = start + n - 1, - .name = name, - .flags = IORESOURCE_MEM, - }; - - return acpi_check_resource_conflict(&res); - -} -EXPORT_SYMBOL(acpi_check_mem_region); - /* * Let drivers know whether the resource checks are effective */ diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 347eb21b2353..8d924a8e4e0b 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -899,6 +899,4 @@ static void __exit acpi_processor_exit(void) module_init(acpi_processor_init); module_exit(acpi_processor_exit); -EXPORT_SYMBOL(acpi_processor_set_thermal_limit); - MODULE_ALIAS("processor"); diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index 953b25fb9869..419f651b63f3 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -238,113 +238,6 @@ static int acpi_thermal_cpufreq_decrease(unsigned int cpu) #endif -int acpi_processor_set_thermal_limit(acpi_handle handle, int type) -{ - int result = 0; - struct acpi_processor *pr = NULL; - struct acpi_device *device = NULL; - int tx = 0, max_tx_px = 0; - - - if ((type < ACPI_PROCESSOR_LIMIT_NONE) - || (type > ACPI_PROCESSOR_LIMIT_DECREMENT)) - return -EINVAL; - - result = acpi_bus_get_device(handle, &device); - if (result) - return result; - - pr = acpi_driver_data(device); - if (!pr) - return -ENODEV; - - /* Thermal limits are always relative to the current Px/Tx state. */ - if (pr->flags.throttling) - pr->limit.thermal.tx = pr->throttling.state; - - /* - * Our default policy is to only use throttling at the lowest - * performance state. - */ - - tx = pr->limit.thermal.tx; - - switch (type) { - - case ACPI_PROCESSOR_LIMIT_NONE: - do { - result = acpi_thermal_cpufreq_decrease(pr->id); - } while (!result); - tx = 0; - break; - - case ACPI_PROCESSOR_LIMIT_INCREMENT: - /* if going up: P-states first, T-states later */ - - result = acpi_thermal_cpufreq_increase(pr->id); - if (!result) - goto end; - else if (result == -ERANGE) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "At maximum performance state\n")); - - if (pr->flags.throttling) { - if (tx == (pr->throttling.state_count - 1)) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "At maximum throttling state\n")); - else - tx++; - } - break; - - case ACPI_PROCESSOR_LIMIT_DECREMENT: - /* if going down: T-states first, P-states later */ - - if (pr->flags.throttling) { - if (tx == 0) { - max_tx_px = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "At minimum throttling state\n")); - } else { - tx--; - goto end; - } - } - - result = acpi_thermal_cpufreq_decrease(pr->id); - if (result) { - /* - * We only could get -ERANGE, 1 or 0. - * In the first two cases we reached max freq again. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "At minimum performance state\n")); - max_tx_px = 1; - } else - max_tx_px = 0; - - break; - } - - end: - if (pr->flags.throttling) { - pr->limit.thermal.px = 0; - pr->limit.thermal.tx = tx; - - result = acpi_processor_apply_limit(pr); - if (result) - printk(KERN_ERR PREFIX "Unable to set thermal limit\n"); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Thermal limit now (P%d:T%d)\n", - pr->limit.thermal.px, pr->limit.thermal.tx)); - } else - result = 0; - if (max_tx_px) - return 1; - else - return result; -} - int acpi_processor_get_limit_info(struct acpi_processor *pr) { diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h index 23d78b4d088b..3090471b2a5e 100644 --- a/include/acpi/acpi_drivers.h +++ b/include/acpi/acpi_drivers.h @@ -115,8 +115,6 @@ void pci_acpi_crs_quirks(void); #define ACPI_PROCESSOR_LIMIT_INCREMENT 0x01 #define ACPI_PROCESSOR_LIMIT_DECREMENT 0x02 -int acpi_processor_set_thermal_limit(acpi_handle handle, int type); - /*-------------------------------------------------------------------------- Dock Station -------------------------------------------------------------------------- */ diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 29bf945143e8..782acdf0286d 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -98,8 +98,6 @@ acpi_os_table_override(struct acpi_table_header *existing_table, /* * Spinlock primitives */ -acpi_status acpi_os_create_lock(acpi_spinlock * out_handle); - void acpi_os_delete_lock(acpi_spinlock handle); acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c227757feb06..659c743b63e3 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -245,8 +245,6 @@ int acpi_check_resource_conflict(const struct resource *res); int acpi_check_region(resource_size_t start, resource_size_t n, const char *name); -int acpi_check_mem_region(resource_size_t start, resource_size_t n, - const char *name); int acpi_resources_are_enforced(void); @@ -344,12 +342,6 @@ static inline int acpi_check_region(resource_size_t start, resource_size_t n, return 0; } -static inline int acpi_check_mem_region(resource_size_t start, - resource_size_t n, const char *name) -{ - return 0; -} - struct acpi_table_header; static inline int acpi_table_parse(char *id, int (*handler)(struct acpi_table_header *)) -- cgit v1.2.3-70-g09d2 From 01eac60bccdb0ce49a2937d59da1e4749697a9aa Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 18 Oct 2010 18:47:25 -0700 Subject: ACPI: static sleep_states[] and acpi_gts_bfs_check Only used in one file so should be static. Signed-off-by: Stephen Hemminger Signed-off-by: Len Brown --- drivers/acpi/sleep.c | 4 ++-- drivers/acpi/sleep.h | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 4754ff6e70e6..b9af2c2ff926 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -25,7 +25,7 @@ #include "internal.h" #include "sleep.h" -u8 sleep_states[ACPI_S_STATE_COUNT]; +static u8 sleep_states[ACPI_S_STATE_COUNT]; static void acpi_sleep_tts_switch(u32 acpi_state) { @@ -702,7 +702,7 @@ static void acpi_power_off(void) * paths through the BIOS, so disable _GTS and _BFS by default, * but do speak up and offer the option to enable them. */ -void __init acpi_gts_bfs_check(void) +static void __init acpi_gts_bfs_check(void) { acpi_handle dummy; diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h index d8821805c3bc..74d59c8f4678 100644 --- a/drivers/acpi/sleep.h +++ b/drivers/acpi/sleep.h @@ -1,5 +1,4 @@ -extern u8 sleep_states[]; extern int acpi_suspend(u32 state); extern void acpi_enable_wakeup_devices(u8 sleep_state); -- cgit v1.2.3-70-g09d2 From ab7c13c4a5a22335b0cfc6f364ee77abed66503c Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 19 Oct 2010 13:58:34 -0400 Subject: ACPI: thermal: remove unused limit code acpi_processor_apply_limit() acpi_thermal_cpufreq_increase() acpi_thermal_cpufreq_decrease() Signed-off-by: Len Brown --- drivers/acpi/processor_thermal.c | 71 ---------------------------------------- 1 file changed, 71 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index 419f651b63f3..fde49b9b1d99 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -44,47 +44,6 @@ #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_thermal"); -/* -------------------------------------------------------------------------- - Limit Interface - -------------------------------------------------------------------------- */ -static int acpi_processor_apply_limit(struct acpi_processor *pr) -{ - int result = 0; - u16 px = 0; - u16 tx = 0; - - - if (!pr) - return -EINVAL; - - if (!pr->flags.limit) - return -ENODEV; - - if (pr->flags.throttling) { - if (pr->limit.user.tx > tx) - tx = pr->limit.user.tx; - if (pr->limit.thermal.tx > tx) - tx = pr->limit.thermal.tx; - - result = acpi_processor_set_throttling(pr, tx, false); - if (result) - goto end; - } - - pr->limit.state.px = px; - pr->limit.state.tx = tx; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Processor [%d] limit set to (P%d:T%d)\n", pr->id, - pr->limit.state.px, pr->limit.state.tx)); - - end: - if (result) - printk(KERN_ERR PREFIX "Unable to set limit\n"); - - return result; -} - #ifdef CONFIG_CPU_FREQ /* If a passive cooling situation is detected, primarily CPUfreq is used, as it @@ -107,36 +66,6 @@ static int cpu_has_cpufreq(unsigned int cpu) return 1; } -static int acpi_thermal_cpufreq_increase(unsigned int cpu) -{ - if (!cpu_has_cpufreq(cpu)) - return -ENODEV; - - if (per_cpu(cpufreq_thermal_reduction_pctg, cpu) < - CPUFREQ_THERMAL_MAX_STEP) { - per_cpu(cpufreq_thermal_reduction_pctg, cpu)++; - cpufreq_update_policy(cpu); - return 0; - } - - return -ERANGE; -} - -static int acpi_thermal_cpufreq_decrease(unsigned int cpu) -{ - if (!cpu_has_cpufreq(cpu)) - return -ENODEV; - - if (per_cpu(cpufreq_thermal_reduction_pctg, cpu) > - (CPUFREQ_THERMAL_MIN_STEP + 1)) - per_cpu(cpufreq_thermal_reduction_pctg, cpu)--; - else - per_cpu(cpufreq_thermal_reduction_pctg, cpu) = 0; - cpufreq_update_policy(cpu); - /* We reached max freq again and can leave passive mode */ - return !per_cpu(cpufreq_thermal_reduction_pctg, cpu); -} - static int acpi_thermal_cpufreq_notifier(struct notifier_block *nb, unsigned long event, void *data) { -- cgit v1.2.3-70-g09d2 From d38a5edf812c2f715242aa20b6beb785939a0096 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Tue, 19 Oct 2010 09:13:39 +0200 Subject: ACPI dock: move some functions to .init.text MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit find_dock and find_bay are only called by dock_init which lives in .init.text dock_add is only called by find_dock and find_bay. So all three functions can be moved to .init.text, too. This fixes: WARNING: vmlinux.o(.text+0x2134b7): Section mismatch in reference from the function dock_add() to the function .init.text:platform_device_register_resndata() The function dock_add() references the function __init platform_device_register_resndata(). This is often because dock_add lacks a __init annotation or the annotation of platform_device_register_resndata is wrong. for a build with unset CONFIG_MODULES. Signed-off-by: Uwe Kleine-König Acked-by: Greg Kroah-Hartman Signed-off-by: Len Brown --- drivers/acpi/dock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 3fe29e992be8..2b1656322ee2 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -929,7 +929,7 @@ static struct attribute_group dock_attribute_group = { * allocated and initialize a new dock station device. Find all devices * that are on the dock station, and register for dock event notifications. */ -static int dock_add(acpi_handle handle) +static int __init dock_add(acpi_handle handle) { int ret, id; struct dock_station ds, *dock_station; @@ -1023,7 +1023,7 @@ static int dock_remove(struct dock_station *ds) * * This is called by acpi_walk_namespace to look for dock stations. */ -static acpi_status +static __init acpi_status find_dock(acpi_handle handle, u32 lvl, void *context, void **rv) { if (is_dock(handle)) @@ -1032,7 +1032,7 @@ find_dock(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } -static acpi_status +static __init acpi_status find_bay(acpi_handle handle, u32 lvl, void *context, void **rv) { /* If bay is a dock, it's already handled */ -- cgit v1.2.3-70-g09d2 From 7a18e96dcbdec3c96876444ae2c7e36ce458e151 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Thu, 21 Oct 2010 18:24:57 +0200 Subject: ACPI: Make Embedded Controller command timeout delay configurable Here and then there show up machines which need higher timeout values. Finding this on affected machines can be cumbersome, because ACPI_EC_DELAY is a compile option -> make it configurable via boot param. This can even be provided writable at runtime via: /sys/modules/acpi/parameters/ec_delay Known machines where this helps: Some HP machines where for whatever reasons specific EC accesses take very long at resume from S3 (in _WAK function). The AE_TIME error is passed upwards and the ACPI interpreter will not execute the rest of the _WAK function which results in not properly initialized devices/variables with different side-effects. Afaik, on some MSI machines this helped as well. If this param is needed there probably are underlying problems like: - EC firmware bug - A kernel EC driver bug - An ACPI interpreter behavior (e.g. timings when specific EC accesses happen and how) which the EC does not like - ... which should get evaluated further, but often are nasty or impossible to fix from OS side. Signed-off-by: Thomas Renninger Signed-off-by: Len Brown --- drivers/acpi/ec.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index f31291ba94d0..372ff80b7b0c 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -83,6 +83,11 @@ enum { EC_FLAGS_BLOCKED, /* Transactions are blocked */ }; +/* ec.c is compiled in acpi namespace so this shows up as acpi.ec_delay param */ +static unsigned int ec_delay __read_mostly = ACPI_EC_DELAY; +module_param(ec_delay, uint, 0644); +MODULE_PARM_DESC(ec_delay, "Timeout(ms) waited until an EC command completes"); + /* If we find an EC via the ECDT, we need to keep a ptr to its context */ /* External interfaces use first EC only, so remember */ typedef int (*acpi_ec_query_func) (void *data); @@ -210,7 +215,7 @@ static int ec_poll(struct acpi_ec *ec) int repeat = 2; /* number of command restarts */ while (repeat--) { unsigned long delay = jiffies + - msecs_to_jiffies(ACPI_EC_DELAY); + msecs_to_jiffies(ec_delay); do { /* don't sleep with disabled interrupts */ if (EC_FLAGS_MSI || irqs_disabled()) { @@ -265,7 +270,7 @@ static int ec_check_ibf0(struct acpi_ec *ec) static int ec_wait_ibf0(struct acpi_ec *ec) { - unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY); + unsigned long delay = jiffies + msecs_to_jiffies(ec_delay); /* interrupt wait manually if GPE mode is not active */ while (time_before(jiffies, delay)) if (wait_event_timeout(ec->wait, ec_check_ibf0(ec), -- cgit v1.2.3-70-g09d2 From 557d58687dcdee6bc00c1a8f1fd4e0eac8fefce9 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Fri, 22 Oct 2010 10:02:06 +0800 Subject: ACPI battery: support percentage battery remaining capacity According to the ACPI spec, some kinds of primary battery can report percentage battery remaining capacity directly to OS. In this case, it reports the LastFullChargedCapacity == 100, BatteryPresentRate = 0xFFFFFFFF, and BatteryRemaingCapacity a percentage value, which actually means RemainingBatteryPercentage. Now we found some battery follows this rule even if it's a rechargeable. https://bugzilla.kernel.org/show_bug.cgi?id=15979 Handle these batteries correctly in ACPI battery driver so that they won't break userspace. Signed-off-by: Zhang Rui Tested-by: Sitsofe Wheeler Signed-off-by: Len Brown --- drivers/acpi/battery.c | 38 +++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 7b8787b490f6..0b2707ee094b 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -95,6 +95,7 @@ enum { * due to bad math. */ ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, + ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, }; struct acpi_battery { @@ -405,6 +406,8 @@ static int acpi_battery_get_info(struct acpi_battery *battery) result = extract_package(battery, buffer.pointer, info_offsets, ARRAY_SIZE(info_offsets)); kfree(buffer.pointer); + if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)) + battery->full_charge_capacity = battery->design_capacity; return result; } @@ -441,6 +444,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery) battery->rate_now != -1) battery->rate_now = abs((s16)battery->rate_now); + if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags) + && battery->capacity_now >= 0 && battery->capacity_now <= 100) + battery->capacity_now = (battery->capacity_now * + battery->full_charge_capacity) / 100; return result; } @@ -552,6 +559,33 @@ static void acpi_battery_quirks(struct acpi_battery *battery) } } +/* + * According to the ACPI spec, some kinds of primary batteries can + * report percentage battery remaining capacity directly to OS. + * In this case, it reports the Last Full Charged Capacity == 100 + * and BatteryPresentRate == 0xFFFFFFFF. + * + * Now we found some battery reports percentage remaining capacity + * even if it's rechargeable. + * https://bugzilla.kernel.org/show_bug.cgi?id=15979 + * + * Handle this correctly so that they won't break userspace. + */ +static void acpi_battery_quirks2(struct acpi_battery *battery) +{ + if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)) + return ; + + if (battery->full_charge_capacity == 100 && + battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN && + battery->capacity_now >=0 && battery->capacity_now <= 100) { + set_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags); + battery->full_charge_capacity = battery->design_capacity; + battery->capacity_now = (battery->capacity_now * + battery->full_charge_capacity) / 100; + } +} + static int acpi_battery_update(struct acpi_battery *battery) { int result, old_present = acpi_battery_present(battery); @@ -573,7 +607,9 @@ static int acpi_battery_update(struct acpi_battery *battery) } if (!battery->bat.dev) sysfs_add_battery(battery); - return acpi_battery_get_state(battery); + result = acpi_battery_get_state(battery); + acpi_battery_quirks2(battery); + return result; } /* -------------------------------------------------------------------------- -- cgit v1.2.3-70-g09d2 From 8df3fc981dc12d9fdcaef4100a2193b605024d7a Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Sat, 23 Oct 2010 01:36:40 -0400 Subject: Subject: [PATCH] ACPICA: Fix Scope() op in module level code Some Panasonic Toughbooks create nodes in module level code. Module level code is the executable AML code outside of control method, for example, below AML code creates a node \_SB.PCI0.GFX0.DD02.CUBL If (\_OSI ("Windows 2006")) { Scope (\_SB.PCI0.GFX0.DD02) { Name (CUBL, Ones) ... } } Scope() op does not actually create a new object, it refers to an existing object(\_SB.PCI0.GFX0.DD02 in above example). However, for Scope(), we want to indeed open a new scope, so the child nodes(CUBL in above example) can be created correctly under it. https://bugzilla.kernel.org/show_bug.cgi?id=19462 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/dswexec.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index d555b374e314..6b0b5d08d97a 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -300,10 +300,25 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, * we must enter this object into the namespace. The created * object is temporary and will be deleted upon completion of * the execution of this method. + * + * Note 10/2010: Except for the Scope() op. This opcode does + * not actually create a new object, it refers to an existing + * object. However, for Scope(), we want to indeed open a + * new scope. */ - status = acpi_ds_load2_begin_op(walk_state, NULL); + if (op->common.aml_opcode != AML_SCOPE_OP) { + status = + acpi_ds_load2_begin_op(walk_state, NULL); + } else { + status = + acpi_ds_scope_stack_push(op->named.node, + op->named.node-> + type, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } } - break; case AML_CLASS_EXECUTE: -- cgit v1.2.3-70-g09d2 From 3e384ee6c687cb397581ee8f9440fc8220cfac80 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 22 Oct 2010 02:35:54 +0200 Subject: ACPI / PM: Fix reference counting of power resources The reference counting of ACPI power resources is currently broken for a few reasons. First, instead of using a simple reference counter per power resource it uses a list of objects representing refereces to the given power resource from devices. This leads to the second breakage, because it prevents power resources from being referenced more than once by one device, which is necessary if the device is configured to signal wakeup. Namely, when putting the device into a low power state we first call acpi_enable_wakeup_device_power() that should reference count power resources needed for signaling wakeup and then we call acpi_power_transition() to power off the device. The latter call drops references to the device's power resources, possibly including the ones added by acpi_enable_wakeup_device_power(), so the device can't signal wakeup as a result. Apart from this, the locking in acpi_power_on() and acpi_power_off_device() doesn't prevent all possible races from happening, which may be problematic for runtime PM and asynchronous suspend and resume. Fix the problem by using a counter for power resources reference counting and putting the evaluation of ACPI _ON and _OFF methods under the power resource mutex. Reported-by: Matthew Garrett Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/power.c | 167 +++++++++++++++++++++------------------------------ 1 file changed, 70 insertions(+), 97 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 844c155aeb0f..67dedeed144c 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -80,18 +80,13 @@ static struct acpi_driver acpi_power_driver = { }, }; -struct acpi_power_reference { - struct list_head node; - struct acpi_device *device; -}; - struct acpi_power_resource { struct acpi_device * device; acpi_bus_id name; u32 system_level; u32 order; + unsigned int ref_count; struct mutex resource_lock; - struct list_head reference; }; static struct list_head acpi_power_resource_list; @@ -184,101 +179,89 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state) return result; } -static int acpi_power_on(acpi_handle handle, struct acpi_device *dev) +static int __acpi_power_on(struct acpi_power_resource *resource) { - int result = 0; - int found = 0; acpi_status status = AE_OK; - struct acpi_power_resource *resource = NULL; - struct list_head *node, *next; - struct acpi_power_reference *ref; + status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL); + if (ACPI_FAILURE(status)) + return -ENODEV; + + /* Update the power resource's _device_ power state */ + resource->device->power.state = ACPI_STATE_D0; + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n", + resource->name)); + + return 0; +} + +static int acpi_power_on(acpi_handle handle) +{ + int result = 0; + struct acpi_power_resource *resource = NULL; result = acpi_power_get_context(handle, &resource); if (result) return result; mutex_lock(&resource->resource_lock); - list_for_each_safe(node, next, &resource->reference) { - ref = container_of(node, struct acpi_power_reference, node); - if (dev->handle == ref->device->handle) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] already referenced by resource [%s]\n", - dev->pnp.bus_id, resource->name)); - found = 1; - break; - } - } - if (!found) { - ref = kmalloc(sizeof (struct acpi_power_reference), - irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); - if (!ref) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "kmalloc() failed\n")); - mutex_unlock(&resource->resource_lock); - return -ENOMEM; - } - list_add_tail(&ref->node, &resource->reference); - ref->device = dev; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] added to resource [%s] references\n", - dev->pnp.bus_id, resource->name)); + if (resource->ref_count++) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Power resource [%s] already on", + resource->name)); + } else { + result = __acpi_power_on(resource); } - mutex_unlock(&resource->resource_lock); - status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL); - if (ACPI_FAILURE(status)) - return -ENODEV; - - /* Update the power resource's _device_ power state */ - resource->device->power.state = ACPI_STATE_D0; + mutex_unlock(&resource->resource_lock); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned on\n", - resource->name)); return 0; } -static int acpi_power_off_device(acpi_handle handle, struct acpi_device *dev) +static int acpi_power_off_device(acpi_handle handle) { int result = 0; acpi_status status = AE_OK; struct acpi_power_resource *resource = NULL; - struct list_head *node, *next; - struct acpi_power_reference *ref; result = acpi_power_get_context(handle, &resource); if (result) return result; mutex_lock(&resource->resource_lock); - list_for_each_safe(node, next, &resource->reference) { - ref = container_of(node, struct acpi_power_reference, node); - if (dev->handle == ref->device->handle) { - list_del(&ref->node); - kfree(ref); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] removed from resource [%s] references\n", - dev->pnp.bus_id, resource->name)); - break; - } + + if (!resource->ref_count) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Power resource [%s] already off", + resource->name)); + goto unlock; } - if (!list_empty(&resource->reference)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cannot turn resource [%s] off - resource is in use\n", - resource->name)); - mutex_unlock(&resource->resource_lock); - return 0; + if (--resource->ref_count) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Power resource [%s] still in use\n", + resource->name)); + goto unlock; } - mutex_unlock(&resource->resource_lock); status = acpi_evaluate_object(resource->device->handle, "_OFF", NULL, NULL); - if (ACPI_FAILURE(status)) - return -ENODEV; + if (ACPI_FAILURE(status)) { + result = -ENODEV; + } else { + /* Update the power resource's _device_ power state */ + resource->device->power.state = ACPI_STATE_D3; - /* Update the power resource's _device_ power state */ - resource->device->power.state = ACPI_STATE_D3; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Power resource [%s] turned off\n", + resource->name)); + } - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n", - resource->name)); + unlock: + mutex_unlock(&resource->resource_lock); - return 0; + return result; } /** @@ -364,7 +347,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) /* Open power resource */ for (i = 0; i < dev->wakeup.resources.count; i++) { - int ret = acpi_power_on(dev->wakeup.resources.handles[i], dev); + int ret = acpi_power_on(dev->wakeup.resources.handles[i]); if (ret) { printk(KERN_ERR PREFIX "Transition power state\n"); dev->wakeup.flags.valid = 0; @@ -420,7 +403,7 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev) /* Close power resource */ for (i = 0; i < dev->wakeup.resources.count; i++) { int ret = acpi_power_off_device( - dev->wakeup.resources.handles[i], dev); + dev->wakeup.resources.handles[i]); if (ret) { printk(KERN_ERR PREFIX "Transition power state\n"); dev->wakeup.flags.valid = 0; @@ -500,7 +483,7 @@ int acpi_power_transition(struct acpi_device *device, int state) * (e.g. so the device doesn't lose power while transitioning). */ for (i = 0; i < tl->count; i++) { - result = acpi_power_on(tl->handles[i], device); + result = acpi_power_on(tl->handles[i]); if (result) goto end; } @@ -513,7 +496,7 @@ int acpi_power_transition(struct acpi_device *device, int state) * Then we dereference all power resources used in the current list. */ for (i = 0; i < cl->count; i++) { - result = acpi_power_off_device(cl->handles[i], device); + result = acpi_power_off_device(cl->handles[i]); if (result) goto end; } @@ -551,7 +534,6 @@ static int acpi_power_add(struct acpi_device *device) resource->device = device; mutex_init(&resource->resource_lock); - INIT_LIST_HEAD(&resource->reference); strcpy(resource->name, device->pnp.bus_id); strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_POWER_CLASS); @@ -594,22 +576,14 @@ static int acpi_power_add(struct acpi_device *device) static int acpi_power_remove(struct acpi_device *device, int type) { - struct acpi_power_resource *resource = NULL; - struct list_head *node, *next; + struct acpi_power_resource *resource; - - if (!device || !acpi_driver_data(device)) + if (!device) return -EINVAL; resource = acpi_driver_data(device); - - mutex_lock(&resource->resource_lock); - list_for_each_safe(node, next, &resource->reference) { - struct acpi_power_reference *ref = container_of(node, struct acpi_power_reference, node); - list_del(&ref->node); - kfree(ref); - } - mutex_unlock(&resource->resource_lock); + if (!resource) + return -EINVAL; kfree(resource); @@ -619,29 +593,28 @@ static int acpi_power_remove(struct acpi_device *device, int type) static int acpi_power_resume(struct acpi_device *device) { int result = 0, state; - struct acpi_power_resource *resource = NULL; - struct acpi_power_reference *ref; + struct acpi_power_resource *resource; - if (!device || !acpi_driver_data(device)) + if (!device) return -EINVAL; resource = acpi_driver_data(device); + if (!resource) + return -EINVAL; + + mutex_lock(&resource->resource_lock); result = acpi_power_get_state(device->handle, &state); if (result) - return result; + goto unlock; - mutex_lock(&resource->resource_lock); - if (state == ACPI_POWER_RESOURCE_STATE_OFF && - !list_empty(&resource->reference)) { - ref = container_of(resource->reference.next, struct acpi_power_reference, node); - mutex_unlock(&resource->resource_lock); - result = acpi_power_on(device->handle, ref->device); - return result; - } + if (state == ACPI_POWER_RESOURCE_STATE_OFF && resource->ref_count) + result = __acpi_power_on(resource); + unlock: mutex_unlock(&resource->resource_lock); - return 0; + + return result; } int __init acpi_power_init(void) -- cgit v1.2.3-70-g09d2 From a1b4bd694a803eba49d637de32bb249638ceadb4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 23 Oct 2010 19:35:15 +0200 Subject: ACPI / Battery: Return -ENODEV for unknown values in get_property() The function acpi_battery_get_property() is called by the power supply framework's function power_supply_show_property() implementing the sysfs interface for power supply devices as the ACPI battery driver's ->get_property() callback. Thus it is supposed to return error code if the value of the given property is unknown. Unfortunately, however, it returns 0 in those cases and puts a wrong (negative) value into the intval field of the union power_supply_propval object provided by power_supply_show_property(). In consequence, wrong negative values are read by user space from the battery's sysfs files. Fix this by making acpi_battery_get_property() return -ENODEV for properties with unknown values (-ENODEV is returned, because power_supply_uevent() returns with error for any other error code returned by power_supply_show_property()). Reported-and-tested-by: Sitsofe Wheeler Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/battery.c | 35 +++++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 98417201e9ce..ac74a7ddaaa4 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -186,6 +186,7 @@ static int acpi_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { + int ret = 0; struct acpi_battery *battery = to_acpi_battery(psy); if (acpi_battery_present(battery)) { @@ -214,26 +215,44 @@ static int acpi_battery_get_property(struct power_supply *psy, val->intval = battery->cycle_count; break; case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: - val->intval = battery->design_voltage * 1000; + if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->design_voltage * 1000; break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: - val->intval = battery->voltage_now * 1000; + if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->voltage_now * 1000; break; case POWER_SUPPLY_PROP_CURRENT_NOW: case POWER_SUPPLY_PROP_POWER_NOW: - val->intval = battery->rate_now * 1000; + if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->rate_now * 1000; break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: - val->intval = battery->design_capacity * 1000; + if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->design_capacity * 1000; break; case POWER_SUPPLY_PROP_CHARGE_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL: - val->intval = battery->full_charge_capacity * 1000; + if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->full_charge_capacity * 1000; break; case POWER_SUPPLY_PROP_CHARGE_NOW: case POWER_SUPPLY_PROP_ENERGY_NOW: - val->intval = battery->capacity_now * 1000; + if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; + else + val->intval = battery->capacity_now * 1000; break; case POWER_SUPPLY_PROP_MODEL_NAME: val->strval = battery->model_number; @@ -245,9 +264,9 @@ static int acpi_battery_get_property(struct power_supply *psy, val->strval = battery->serial_number; break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + return ret; } static enum power_supply_property charge_battery_props[] = { -- cgit v1.2.3-70-g09d2 From b3ba1efec2a58f4dc0647f4c0099c27d6ab92595 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:23:48 -0600 Subject: ACPI: Fix ioremap size for MMIO reads and writes The size used for I/O remapping MMIO read and write accesses has not accounted for the basis of ACPI's Generic Address Structure (GAS) 'Register Bit Width' field which is bits, not bytes. This patch adjusts the ioremap() 'size' argument accordingly. ACPI "Generic Register" reference: ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address Structure". Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 65b25a303b86..58842fb9fd90 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -496,7 +496,7 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) u32 dummy; void __iomem *virt_addr; - virt_addr = ioremap(phys_addr, width); + virt_addr = ioremap(phys_addr, width / 8); if (!value) value = &dummy; @@ -524,7 +524,7 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; - virt_addr = ioremap(phys_addr, width); + virt_addr = ioremap(phys_addr, width / 8); switch (width) { case 8: -- cgit v1.2.3-70-g09d2 From 620242ae8c3d9c0b1a77451744fb2d855d1e7342 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:23:53 -0600 Subject: ACPI: Maintain a list of ACPI memory mapped I/O remappings For memory mapped I/O (MMIO) remappings, add a list to maintain the remappings and augment the corresponding mapping and unmapping interface routines (acpi_os_map_memory() and acpi_os_unmap_memory()) to dynamically add to, and delete from, the list. The current ACPI I/O accessing methods - acpi_read() and acpi_write() - end up calling ioremap() when accessing MMIO. This prevents use of these methods within interrupt context (IRQ and/or NMI), since ioremap() may block to allocate memory. Maintaining a list of MMIO remappings enables accesses to such areas from within interrupt context provided they have been pre-mapped. Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 128 ++++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 113 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 58842fb9fd90..bd72129e35f2 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -95,6 +95,20 @@ struct acpi_res_list { static LIST_HEAD(resource_list_head); static DEFINE_SPINLOCK(acpi_res_lock); +/* + * This list of permanent mappings is for memory that may be accessed from + * interrupt context, where we can't do the ioremap(). + */ +struct acpi_ioremap { + struct list_head list; + void __iomem *virt; + acpi_physical_address phys; + acpi_size size; +}; + +static LIST_HEAD(acpi_ioremaps); +static DEFINE_SPINLOCK(acpi_ioremap_lock); + #define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ static char osi_additional_string[OSI_STRING_LENGTH_MAX]; @@ -260,29 +274,95 @@ acpi_physical_address __init acpi_os_get_root_pointer(void) } } +/* Must be called with 'acpi_ioremap_lock' lock held. */ +static void __iomem * +acpi_map_vaddr_lookup(acpi_physical_address phys, acpi_size size) +{ + struct acpi_ioremap *map; + + list_for_each_entry(map, &acpi_ioremaps, list) + if (map->phys <= phys && + phys + size <= map->phys + map->size) + return map->virt + (phys - map->phys); + + return NULL; +} + +/* Must be called with 'acpi_ioremap_lock' lock held. */ +static struct acpi_ioremap * +acpi_map_lookup_virt(void __iomem *virt, acpi_size size) +{ + struct acpi_ioremap *map; + + list_for_each_entry(map, &acpi_ioremaps, list) + if (map->virt == virt && map->size == size) + return map; + + return NULL; +} + void __iomem *__init_refok acpi_os_map_memory(acpi_physical_address phys, acpi_size size) { + struct acpi_ioremap *map; + unsigned long flags; + void __iomem *virt; + if (phys > ULONG_MAX) { printk(KERN_ERR PREFIX "Cannot map memory that high\n"); return NULL; } - if (acpi_gbl_permanent_mmap) - /* - * ioremap checks to ensure this is in reserved space - */ - return ioremap((unsigned long)phys, size); - else + + if (!acpi_gbl_permanent_mmap) return __acpi_map_table((unsigned long)phys, size); + + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (!map) + return NULL; + + virt = ioremap(phys, size); + if (!virt) { + kfree(map); + return NULL; + } + + INIT_LIST_HEAD(&map->list); + map->virt = virt; + map->phys = phys; + map->size = size; + + spin_lock_irqsave(&acpi_ioremap_lock, flags); + list_add_tail(&map->list, &acpi_ioremaps); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + + return virt; } EXPORT_SYMBOL_GPL(acpi_os_map_memory); void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) { - if (acpi_gbl_permanent_mmap) - iounmap(virt); - else + struct acpi_ioremap *map; + unsigned long flags; + + if (!acpi_gbl_permanent_mmap) { __acpi_unmap_table(virt, size); + return; + } + + spin_lock_irqsave(&acpi_ioremap_lock, flags); + map = acpi_map_lookup_virt(virt, size); + if (!map) { + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + printk(KERN_ERR PREFIX "%s: bad address %p\n", __func__, virt); + dump_stack(); + return; + } + + list_del(&map->list); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + + iounmap(map->virt); + kfree(map); } EXPORT_SYMBOL_GPL(acpi_os_unmap_memory); @@ -495,8 +575,16 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) { u32 dummy; void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width / 8); + int size = width / 8, unmap = 0; + unsigned long flags; + + spin_lock_irqsave(&acpi_ioremap_lock, flags); + virt_addr = acpi_map_vaddr_lookup(phys_addr, size); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + if (!virt_addr) { + virt_addr = ioremap(phys_addr, size); + unmap = 1; + } if (!value) value = &dummy; @@ -514,7 +602,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) BUG(); } - iounmap(virt_addr); + if (unmap) + iounmap(virt_addr); return AE_OK; } @@ -523,8 +612,16 @@ acpi_status acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width / 8); + int size = width / 8, unmap = 0; + unsigned long flags; + + spin_lock_irqsave(&acpi_ioremap_lock, flags); + virt_addr = acpi_map_vaddr_lookup(phys_addr, size); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + if (!virt_addr) { + virt_addr = ioremap(phys_addr, size); + unmap = 1; + } switch (width) { case 8: @@ -540,7 +637,8 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) BUG(); } - iounmap(virt_addr); + if (unmap) + iounmap(virt_addr); return AE_OK; } -- cgit v1.2.3-70-g09d2 From 29718521237a1b1607ea05b49243100ea2044337 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:23:59 -0600 Subject: ACPI: Add interfaces for ioremapping/iounmapping ACPI registers Add remapping and unmapping interfaces for ACPI registers that are backed by memory mapped I/O (MMIO). These interfaces, along with the MMIO remapping list, enable accesses of such registers from within interrupt context. ACPI Generic Address Structure (GAS) reference (ACPI's fixed/generic hardware registers use the GAS format): ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address Structure". Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 38 ++++++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 3 +++ 2 files changed, 41 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index bd72129e35f2..fc6c5d21c3eb 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -372,6 +372,44 @@ void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size) __acpi_unmap_table(virt, size); } +int acpi_os_map_generic_address(struct acpi_generic_address *addr) +{ + void __iomem *virt; + + if (addr->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) + return 0; + + if (!addr->address || !addr->bit_width) + return -EINVAL; + + virt = acpi_os_map_memory(addr->address, addr->bit_width / 8); + if (!virt) + return -EIO; + + return 0; +} +EXPORT_SYMBOL_GPL(acpi_os_map_generic_address); + +void acpi_os_unmap_generic_address(struct acpi_generic_address *addr) +{ + void __iomem *virt; + unsigned long flags; + acpi_size size = addr->bit_width / 8; + + if (addr->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) + return; + + if (!addr->address || !addr->bit_width) + return; + + spin_lock_irqsave(&acpi_ioremap_lock, flags); + virt = acpi_map_vaddr_lookup(addr->address, size); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + + acpi_os_unmap_memory(virt, size); +} +EXPORT_SYMBOL_GPL(acpi_os_unmap_generic_address); + #ifdef ACPI_FUTURE_USAGE acpi_status acpi_os_get_physical_address(void *virt, acpi_physical_address * phys) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c227757feb06..7774e6d8fddd 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -308,6 +308,9 @@ extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req); extern void acpi_early_init(void); +int acpi_os_map_generic_address(struct acpi_generic_address *addr); +void acpi_os_unmap_generic_address(struct acpi_generic_address *addr); + #else /* !CONFIG_ACPI */ #define acpi_disabled 1 -- cgit v1.2.3-70-g09d2 From d362edaf5386acedad4319a6721bb1540b74dcf7 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:24:04 -0600 Subject: ACPI: Pre-map 'system event' related register blocks During ACPI initialization, pre-map fixed hardware registers that are accessed during ACPI's 'system event' related IRQ handing. ACPI's 'system event' handing accesses specific fixed hardware registers; namely PM1a event, PM1b event, GPE0, and GPE1 register blocks which are declared within the FADT. If these registers are backed by MMIO, as opposed to I/O port space, accessing them within interrupt context will cause a panic as acpi_os_read_memory() depends on ioremap() in such cases - BZ 18012. By utilizing the functionality provided in the previous two patches - ACPI: Maintain a list of ACPI memory mapped I/O remappings, and, ACPI: Add interfaces for ioremapping/iounmapping ACPI registers - accesses to ACPI MMIO areas will now be safe from within interrupt contexts (IRQ and/or NMI) provided the area was pre-mapped. This solves BZ 18012. ACPI "System Event" reference(s): ACPI Specification, Revision 4.0, Section 3 "ACPI Overview", 3.8 "System Events", 5.6 "ACPI Event Programming Model". Reference: https://bugzilla.kernel.org/show_bug.cgi?id=18012 Reported-by: Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 71 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 40 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index fc6c5d21c3eb..c63d4cb37dab 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -199,36 +199,6 @@ static int __init acpi_reserve_resources(void) } device_initcall(acpi_reserve_resources); -acpi_status __init acpi_os_initialize(void) -{ - return AE_OK; -} - -acpi_status acpi_os_initialize1(void) -{ - kacpid_wq = create_workqueue("kacpid"); - kacpi_notify_wq = create_workqueue("kacpi_notify"); - kacpi_hotplug_wq = create_workqueue("kacpi_hotplug"); - BUG_ON(!kacpid_wq); - BUG_ON(!kacpi_notify_wq); - BUG_ON(!kacpi_hotplug_wq); - return AE_OK; -} - -acpi_status acpi_os_terminate(void) -{ - if (acpi_irq_handler) { - acpi_os_remove_interrupt_handler(acpi_irq_irq, - acpi_irq_handler); - } - - destroy_workqueue(kacpid_wq); - destroy_workqueue(kacpi_notify_wq); - destroy_workqueue(kacpi_hotplug_wq); - - return AE_OK; -} - void acpi_os_printf(const char *fmt, ...) { va_list args; @@ -1598,5 +1568,44 @@ acpi_os_validate_address ( } return AE_OK; } - #endif + +acpi_status __init acpi_os_initialize(void) +{ + acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1a_event_block); + acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1b_event_block); + acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe0_block); + acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe1_block); + + return AE_OK; +} + +acpi_status acpi_os_initialize1(void) +{ + kacpid_wq = create_workqueue("kacpid"); + kacpi_notify_wq = create_workqueue("kacpi_notify"); + kacpi_hotplug_wq = create_workqueue("kacpi_hotplug"); + BUG_ON(!kacpid_wq); + BUG_ON(!kacpi_notify_wq); + BUG_ON(!kacpi_hotplug_wq); + return AE_OK; +} + +acpi_status acpi_os_terminate(void) +{ + if (acpi_irq_handler) { + acpi_os_remove_interrupt_handler(acpi_irq_irq, + acpi_irq_handler); + } + + acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe1_block); + acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe0_block); + acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1b_event_block); + acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1a_event_block); + + destroy_workqueue(kacpid_wq); + destroy_workqueue(kacpi_notify_wq); + destroy_workqueue(kacpi_hotplug_wq); + + return AE_OK; +} -- cgit v1.2.3-70-g09d2 From 78cdb3ed4053798c894899b15d2255fb880edad4 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:24:09 -0600 Subject: ACPI: Convert simple locking to RCU based locking Convert the simple locking introduced earlier for the ACPI MMIO remappings list to an RCU based locking scheme. Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index c63d4cb37dab..32826893c2e6 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -244,13 +244,13 @@ acpi_physical_address __init acpi_os_get_root_pointer(void) } } -/* Must be called with 'acpi_ioremap_lock' lock held. */ +/* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ static void __iomem * acpi_map_vaddr_lookup(acpi_physical_address phys, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list) if (map->phys <= phys && phys + size <= map->phys + map->size) return map->virt + (phys - map->phys); @@ -258,13 +258,13 @@ acpi_map_vaddr_lookup(acpi_physical_address phys, acpi_size size) return NULL; } -/* Must be called with 'acpi_ioremap_lock' lock held. */ +/* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ static struct acpi_ioremap * acpi_map_lookup_virt(void __iomem *virt, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list) if (map->virt == virt && map->size == size) return map; @@ -302,7 +302,7 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size) map->size = size; spin_lock_irqsave(&acpi_ioremap_lock, flags); - list_add_tail(&map->list, &acpi_ioremaps); + list_add_tail_rcu(&map->list, &acpi_ioremaps); spin_unlock_irqrestore(&acpi_ioremap_lock, flags); return virt; @@ -328,9 +328,10 @@ void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) return; } - list_del(&map->list); + list_del_rcu(&map->list); spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + synchronize_rcu(); iounmap(map->virt); kfree(map); } @@ -584,11 +585,10 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) u32 dummy; void __iomem *virt_addr; int size = width / 8, unmap = 0; - unsigned long flags; - spin_lock_irqsave(&acpi_ioremap_lock, flags); + rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + rcu_read_unlock(); if (!virt_addr) { virt_addr = ioremap(phys_addr, size); unmap = 1; @@ -621,11 +621,10 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; int size = width / 8, unmap = 0; - unsigned long flags; - spin_lock_irqsave(&acpi_ioremap_lock, flags); + rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + rcu_read_unlock(); if (!virt_addr) { virt_addr = ioremap(phys_addr, size); unmap = 1; -- cgit v1.2.3-70-g09d2 From 4a3cba5e72a5232842ff7c1ca691ec3450af64b9 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 21 Oct 2010 14:24:14 -0600 Subject: ACPI: Page based coalescing of I/O remappings optimization This patch optimizes ACPI MMIO remappings by keeping track of the remappings on a PAGE_SIZE granularity. When an ioremap() occurs, the underlying infrastructure works on a 'page' based granularity. As such, an ioremap() request for 1 byte for example, will end up mapping in an entire (PAGE_SIZE) page. Huang Ying took advantage of this in commit 15651291a2f8c11e7e6a42d8bfde7a213ff13262 by checking if subsequent ioremap() requests reside within any of the list's existing remappings still in place, and if so, incrementing a reference count on the existing mapping as opposed to performing another ioremap(). Signed-off-by: Myron Stowe Signed-off-by: Len Brown --- drivers/acpi/osl.c | 62 ++++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 51 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 32826893c2e6..885e222bcabd 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -104,6 +104,7 @@ struct acpi_ioremap { void __iomem *virt; acpi_physical_address phys; acpi_size size; + struct kref ref; }; static LIST_HEAD(acpi_ioremaps); @@ -245,15 +246,28 @@ acpi_physical_address __init acpi_os_get_root_pointer(void) } /* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ -static void __iomem * -acpi_map_vaddr_lookup(acpi_physical_address phys, acpi_size size) +static struct acpi_ioremap * +acpi_map_lookup(acpi_physical_address phys, acpi_size size) { struct acpi_ioremap *map; list_for_each_entry_rcu(map, &acpi_ioremaps, list) if (map->phys <= phys && phys + size <= map->phys + map->size) - return map->virt + (phys - map->phys); + return map; + + return NULL; +} + +/* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ +static void __iomem * +acpi_map_vaddr_lookup(acpi_physical_address phys, unsigned int size) +{ + struct acpi_ioremap *map; + + map = acpi_map_lookup(phys, size); + if (map) + return map->virt + (phys - map->phys); return NULL; } @@ -265,7 +279,8 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size) struct acpi_ioremap *map; list_for_each_entry_rcu(map, &acpi_ioremaps, list) - if (map->virt == virt && map->size == size) + if (map->virt <= virt && + virt + size <= map->virt + map->size) return map; return NULL; @@ -274,9 +289,10 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size) void __iomem *__init_refok acpi_os_map_memory(acpi_physical_address phys, acpi_size size) { - struct acpi_ioremap *map; - unsigned long flags; + struct acpi_ioremap *map, *tmp_map; + unsigned long flags, pg_sz; void __iomem *virt; + phys_addr_t pg_off; if (phys > ULONG_MAX) { printk(KERN_ERR PREFIX "Cannot map memory that high\n"); @@ -290,7 +306,9 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size) if (!map) return NULL; - virt = ioremap(phys, size); + pg_off = round_down(phys, PAGE_SIZE); + pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off; + virt = ioremap(pg_off, pg_sz); if (!virt) { kfree(map); return NULL; @@ -298,21 +316,40 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size) INIT_LIST_HEAD(&map->list); map->virt = virt; - map->phys = phys; - map->size = size; + map->phys = pg_off; + map->size = pg_sz; + kref_init(&map->ref); spin_lock_irqsave(&acpi_ioremap_lock, flags); + /* Check if page has already been mapped. */ + tmp_map = acpi_map_lookup(phys, size); + if (tmp_map) { + kref_get(&tmp_map->ref); + spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + iounmap(map->virt); + kfree(map); + return tmp_map->virt + (phys - tmp_map->phys); + } list_add_tail_rcu(&map->list, &acpi_ioremaps); spin_unlock_irqrestore(&acpi_ioremap_lock, flags); - return virt; + return map->virt + (phys - map->phys); } EXPORT_SYMBOL_GPL(acpi_os_map_memory); +static void acpi_kref_del_iomap(struct kref *ref) +{ + struct acpi_ioremap *map; + + map = container_of(ref, struct acpi_ioremap, ref); + list_del_rcu(&map->list); +} + void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) { struct acpi_ioremap *map; unsigned long flags; + int del; if (!acpi_gbl_permanent_mmap) { __acpi_unmap_table(virt, size); @@ -328,9 +365,12 @@ void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) return; } - list_del_rcu(&map->list); + del = kref_put(&map->ref, acpi_kref_del_iomap); spin_unlock_irqrestore(&acpi_ioremap_lock, flags); + if (!del) + return; + synchronize_rcu(); iounmap(map->virt); kfree(map); -- cgit v1.2.3-70-g09d2 From af48931c4863ced64cc52c58757be6e254437f9a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 17 Oct 2010 21:01:21 +0200 Subject: ACPI / PM: Blacklist another machine that needs acpi_sleep=nonvs Sony Vaio VPCEB1Z1E is reported to require acpi_sleep=nonvs for suspend/resume to work on it correctly, so blacklist it. Reported-by: Emanuele Bigiarini Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/sleep.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index b9af2c2ff926..05dc42c2a46b 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -419,6 +419,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Everex StepNote Series"), }, }, + { + .callback = init_nvs_nosave, + .ident = "Sony Vaio VPCEB1Z1E", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"), + }, + }, {}, }; #endif /* CONFIG_SUSPEND */ -- cgit v1.2.3-70-g09d2 From b1d248d96c71665c79befb81207f38f894c7c082 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 26 Oct 2010 10:06:54 +0800 Subject: ACPI: install ACPI table handler before any dynamic tables being loaded ACPI table sysfs I/F is broken by commit 78f1699659963fff97975df44db6d5dbe7218e55 Author: Alex Chiang Date: Sun Dec 20 12:19:09 2009 -0700 ACPI: processor: call _PDC early because dynamic SSDT tables may be loaded in _PDC, before installing the ACPI table handler. As a result, the sysfs I/F of these dynamic tables are located at /sys/firmware/acpi/tables instead of /sys/firmware/acpi/tables/dynamic, which is not true. Invoke acpi_sysfs_init() before acpi_early_processor_set_pdc(), so that the table handler is installed before any dynamic tables loaded. https://bugzilla.kernel.org/show_bug.cgi?id=21142 CC: Dennis Jansen CC: Alex Chiang Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/bus.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 310e3b9749cb..d68bd61072bb 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -935,6 +935,12 @@ static int __init acpi_bus_init(void) goto error1; } + /* + * _PDC control method may load dynamic SSDT tables, + * and we need to install the table handler before that. + */ + acpi_sysfs_init(); + acpi_early_processor_set_pdc(); /* @@ -1026,7 +1032,6 @@ static int __init acpi_init(void) acpi_scan_init(); acpi_ec_init(); acpi_power_init(); - acpi_sysfs_init(); acpi_debugfs_init(); acpi_sleep_proc_init(); acpi_wakeup_device_init(); -- cgit v1.2.3-70-g09d2