diff options
Diffstat (limited to 'drivers/gpu/drm/amd/include/amd_acpi.h')
| -rw-r--r-- | drivers/gpu/drm/amd/include/amd_acpi.h | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/include/amd_acpi.h b/drivers/gpu/drm/amd/include/amd_acpi.h new file mode 100644 index 000000000000..496360eb3fba --- /dev/null +++ b/drivers/gpu/drm/amd/include/amd_acpi.h @@ -0,0 +1,494 @@ +/* + * Copyright 2012 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef AMD_ACPI_H +#define AMD_ACPI_H + +#define ACPI_AC_CLASS "ac_adapter" + +struct atif_verify_interface { + u16 size; /* structure size in bytes (includes size field) */ + u16 version; /* version */ + u32 notification_mask; /* supported notifications mask */ + u32 function_bits; /* supported functions bit vector */ +} __packed; + +struct atif_system_params { + u16 size; /* structure size in bytes (includes size field) */ + u32 valid_mask; /* valid flags mask */ + u32 flags; /* flags */ + u8 command_code; /* notify command code */ +} __packed; + +struct atif_sbios_requests { + u16 size; /* structure size in bytes (includes size field) */ + u32 pending; /* pending sbios requests */ + u8 panel_exp_mode; /* panel expansion mode */ + u8 thermal_gfx; /* thermal state: target gfx controller */ + u8 thermal_state; /* thermal state: state id (0: exit state, non-0: state) */ + u8 forced_power_gfx; /* forced power state: target gfx controller */ + u8 forced_power_state; /* forced power state: state id */ + u8 system_power_src; /* system power source */ + u8 backlight_level; /* panel backlight level (0-255) */ +} __packed; + +#define ATIF_NOTIFY_MASK 0x3 +#define ATIF_NOTIFY_NONE 0 +#define ATIF_NOTIFY_81 1 +#define ATIF_NOTIFY_N 2 + +struct atcs_verify_interface { + u16 size; /* structure size in bytes (includes size field) */ + u16 version; /* version */ + u32 function_bits; /* supported functions bit vector */ +} __packed; + +#define ATCS_VALID_FLAGS_MASK 0x3 + +struct atcs_pref_req_input { + u16 size; /* structure size in bytes (includes size field) */ + u16 client_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ + u16 valid_flags_mask; /* valid flags mask */ + u16 flags; /* flags */ + u8 req_type; /* request type */ + u8 perf_req; /* performance request */ +} __packed; + +struct atcs_pref_req_output { + u16 size; /* structure size in bytes (includes size field) */ + u8 ret_val; /* return value */ +} __packed; + +/* AMD hw uses four ACPI control methods: + * 1. ATIF + * ARG0: (ACPI_INTEGER) function code + * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes + * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes + * ATIF provides an entry point for the gfx driver to interact with the sbios. + * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom + * notification. Which notification is used as indicated by the ATIF Control + * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or + * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS + * to identify pending System BIOS requests and associated parameters. For + * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver + * will perform display device detection and invoke ATIF Control Method + * SELECT_ACTIVE_DISPLAYS. + * + * 2. ATPX + * ARG0: (ACPI_INTEGER) function code + * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes + * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes + * ATPX methods are used on PowerXpress systems to handle mux switching and + * discrete GPU power control. + * + * 3. ATRM + * ARG0: (ACPI_INTEGER) offset of vbios rom data + * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K). + * OUTPUT: (ACPI_BUFFER) output buffer + * ATRM provides an interfacess to access the discrete GPU vbios image on + * PowerXpress systems with multiple GPUs. + * + * 4. ATCS + * ARG0: (ACPI_INTEGER) function code + * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes + * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes + * ATCS provides an interface to AMD chipset specific functionality. + * + */ +/* ATIF */ +#define ATIF_FUNCTION_VERIFY_INTERFACE 0x0 +/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * WORD - version + * DWORD - supported notifications mask + * DWORD - supported functions bit vector + */ +/* Notifications mask */ +# define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0) +# define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1) +# define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2) +# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3) +# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4) +# define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5) +# define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6) +# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7) +# define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8) +/* supported functions vector */ +# define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0) +# define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1) +# define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2) +# define ATIF_GET_LID_STATE_SUPPORTED (1 << 3) +# define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4) +# define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5) +# define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6) +# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7) +# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12) +# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14) +#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1 +/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * DWORD - valid flags mask + * DWORD - flags + * + * OR + * + * WORD - structure size in bytes (includes size field) + * DWORD - valid flags mask + * DWORD - flags + * BYTE - notify command code + * + * flags + * bits 1:0: + * 0 - Notify(VGA, 0x81) is not used for notification + * 1 - Notify(VGA, 0x81) is used for notification + * 2 - Notify(VGA, n) is used for notification where + * n (0xd0-0xd9) is specified in notify command code. + * bit 2: + * 1 - lid changes not reported though int10 + */ +#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2 +/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * DWORD - pending sbios requests + * BYTE - panel expansion mode + * BYTE - thermal state: target gfx controller + * BYTE - thermal state: state id (0: exit state, non-0: state) + * BYTE - forced power state: target gfx controller + * BYTE - forced power state: state id + * BYTE - system power source + * BYTE - panel backlight level (0-255) + */ +/* pending sbios requests */ +# define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0) +# define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1) +# define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2) +# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3) +# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4) +# define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5) +# define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6) +# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7) +# define ATIF_DGPU_DISPLAY_EVENT (1 << 8) +/* panel expansion mode */ +# define ATIF_PANEL_EXPANSION_DISABLE 0 +# define ATIF_PANEL_EXPANSION_FULL 1 +# define ATIF_PANEL_EXPANSION_ASPECT 2 +/* target gfx controller */ +# define ATIF_TARGET_GFX_SINGLE 0 +# define ATIF_TARGET_GFX_PX_IGPU 1 +# define ATIF_TARGET_GFX_PX_DGPU 2 +/* system power source */ +# define ATIF_POWER_SOURCE_AC 1 +# define ATIF_POWER_SOURCE_DC 2 +# define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3 +# define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4 +#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3 +/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - selected displays + * WORD - connected displays + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * WORD - selected displays + */ +# define ATIF_LCD1 (1 << 0) +# define ATIF_CRT1 (1 << 1) +# define ATIF_TV (1 << 2) +# define ATIF_DFP1 (1 << 3) +# define ATIF_CRT2 (1 << 4) +# define ATIF_LCD2 (1 << 5) +# define ATIF_DFP2 (1 << 7) +# define ATIF_CV (1 << 8) +# define ATIF_DFP3 (1 << 9) +# define ATIF_DFP4 (1 << 10) +# define ATIF_DFP5 (1 << 11) +# define ATIF_DFP6 (1 << 12) +#define ATIF_FUNCTION_GET_LID_STATE 0x4 +/* ARG0: ATIF_FUNCTION_GET_LID_STATE + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * BYTE - lid state (0: open, 1: closed) + * + * GET_LID_STATE only works at boot and resume, for general lid + * status, use the kernel provided status + */ +#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5 +/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * BYTE - 0 + * BYTE - TV standard + */ +# define ATIF_TV_STD_NTSC 0 +# define ATIF_TV_STD_PAL 1 +# define ATIF_TV_STD_PALM 2 +# define ATIF_TV_STD_PAL60 3 +# define ATIF_TV_STD_NTSCJ 4 +# define ATIF_TV_STD_PALCN 5 +# define ATIF_TV_STD_PALN 6 +# define ATIF_TV_STD_SCART_RGB 9 +#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6 +/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS + * ARG1: + * WORD - structure size in bytes (includes size field) + * BYTE - 0 + * BYTE - TV standard + * OUTPUT: none + */ +#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7 +/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * BYTE - panel expansion mode + */ +#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8 +/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS + * ARG1: + * WORD - structure size in bytes (includes size field) + * BYTE - panel expansion mode + * OUTPUT: none + */ +#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD +/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - gfx controller id + * BYTE - current temperature (degress Celsius) + * OUTPUT: none + */ +#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF +/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES + * ARG1: none + * OUTPUT: + * WORD - number of gfx devices + * WORD - device structure size in bytes (excludes device size field) + * DWORD - flags \ + * WORD - bus number } repeated structure + * WORD - device number / + */ +/* flags */ +# define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0) +# define ATIF_XGP_PORT (1 << 1) +# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2) +# define ATIF_XGP_PORT_IN_DOCK (1 << 3) + +/* ATPX */ +#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0 +/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * WORD - version + * DWORD - supported functions bit vector + */ +/* supported functions vector */ +# define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0) +# define ATPX_POWER_CONTROL_SUPPORTED (1 << 1) +# define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2) +# define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3) +# define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4) +# define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5) +# define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7) +# define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8) +#define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1 +/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * DWORD - valid flags mask + * DWORD - flags + */ +/* flags */ +# define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0) +# define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1) +# define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2) +# define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3) +# define ATPX_TV_SIGNAL_MUXED (1 << 4) +# define ATPX_DFP_SIGNAL_MUXED (1 << 5) +# define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6) +# define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7) +# define ATPX_ACF_NOT_SUPPORTED (1 << 8) +# define ATPX_FIXED_NOT_SUPPORTED (1 << 9) +# define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10) +# define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11) +#define ATPX_FUNCTION_POWER_CONTROL 0x2 +/* ARG0: ATPX_FUNCTION_POWER_CONTROL + * ARG1: + * WORD - structure size in bytes (includes size field) + * BYTE - dGPU power state (0: power off, 1: power on) + * OUTPUT: none + */ +#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3 +/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - display mux control (0: iGPU, 1: dGPU) + * OUTPUT: none + */ +# define ATPX_INTEGRATED_GPU 0 +# define ATPX_DISCRETE_GPU 1 +#define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4 +/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU) + * OUTPUT: none + */ +#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5 +/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - target gpu (0: iGPU, 1: dGPU) + * OUTPUT: none + */ +#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6 +/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - target gpu (0: iGPU, 1: dGPU) + * OUTPUT: none + */ +#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8 +/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING + * ARG1: none + * OUTPUT: + * WORD - number of display connectors + * WORD - connector structure size in bytes (excludes connector size field) + * BYTE - flags \ + * BYTE - ATIF display vector bit position } repeated + * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure + * WORD - connector ACPI id / + */ +/* flags */ +# define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0) +# define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1) +# define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2) +#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9 +/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS + * ARG1: none + * OUTPUT: + * WORD - number of HPD/DDC ports + * WORD - port structure size in bytes (excludes port size field) + * BYTE - ATIF display vector bit position \ + * BYTE - hpd id } reapeated structure + * BYTE - ddc id / + * + * available on A+A systems only + */ +/* hpd id */ +# define ATPX_HPD_NONE 0 +# define ATPX_HPD1 1 +# define ATPX_HPD2 2 +# define ATPX_HPD3 3 +# define ATPX_HPD4 4 +# define ATPX_HPD5 5 +# define ATPX_HPD6 6 +/* ddc id */ +# define ATPX_DDC_NONE 0 +# define ATPX_DDC1 1 +# define ATPX_DDC2 2 +# define ATPX_DDC3 3 +# define ATPX_DDC4 4 +# define ATPX_DDC5 5 +# define ATPX_DDC6 6 +# define ATPX_DDC7 7 +# define ATPX_DDC8 8 + +/* ATCS */ +#define ATCS_FUNCTION_VERIFY_INTERFACE 0x0 +/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * WORD - version + * DWORD - supported functions bit vector + */ +/* supported functions vector */ +# define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0) +# define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1) +# define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2) +# define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3) +#define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1 +/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE + * ARG1: none + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * DWORD - valid flags mask + * DWORD - flags (0: undocked, 1: docked) + */ +/* flags */ +# define ATCS_DOCKED (1 << 0) +#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2 +/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) + * WORD - valid flags mask + * WORD - flags + * BYTE - request type + * BYTE - performance request + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * BYTE - return value + */ +/* flags */ +# define ATCS_ADVERTISE_CAPS (1 << 0) +# define ATCS_WAIT_FOR_COMPLETION (1 << 1) +/* request type */ +# define ATCS_PCIE_LINK_SPEED 1 +/* performance request */ +# define ATCS_REMOVE 0 +# define ATCS_FORCE_LOW_POWER 1 +# define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */ +# define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */ +# define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */ +/* return value */ +# define ATCS_REQUEST_REFUSED 1 +# define ATCS_REQUEST_COMPLETE 2 +# define ATCS_REQUEST_IN_PROGRESS 3 +#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3 +/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION + * ARG1: none + * OUTPUT: none + */ +#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4 +/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH + * ARG1: + * WORD - structure size in bytes (includes size field) + * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) + * BYTE - number of active lanes + * OUTPUT: + * WORD - structure size in bytes (includes size field) + * BYTE - number of active lanes + */ + +#endif |