diff options
| author | Dave Airlie <airlied@redhat.com> | 2021-07-23 11:31:50 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2021-07-23 11:32:43 +1000 |
| commit | 8da49a33dda7294c1af508f8aa81cd638d0afd62 (patch) | |
| tree | 03327c42b220f70e102d73d7990e04f3f2bb47b1 /drivers | |
| parent | 588b3eee528873d73bf777f329d35b2e65e24777 (diff) | |
| parent | 474596fc749ca8c87520fbd3529ff89464a94430 (diff) | |
Merge tag 'drm-misc-next-2021-07-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.15-rc1:
UAPI Changes:
- Remove sysfs stats for dma-buf attachments, as it causes a performance regression.
Previous merge is not in a rc kernel yet, so no userspace regression possible.
Cross-subsystem Changes:
- Sanitize user input in kyro's viewport ioctl.
- Use refcount_t in fb_info->count
- Assorted fixes to dma-buf.
- Extend x86 efifb handling to all archs.
- Fix neofb divide by 0.
- Document corpro,gm7123 bridge dt bindings.
Core Changes:
- Slightly rework drm master handling.
- Cleanup vgaarb handling.
- Assorted fixes.
Driver Changes:
- Add support for ws2401 panel.
- Assorted fixes to stm, ast, bochs.
- Demidlayer ingenic irq.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2d0d2fe8-01fc-e216-c3fd-38db9e69944e@linux.intel.com
Diffstat (limited to 'drivers')
45 files changed, 1686 insertions, 433 deletions
diff --git a/drivers/dma-buf/dma-buf-sysfs-stats.c b/drivers/dma-buf/dma-buf-sysfs-stats.c index a2638e84199c..053baadcada9 100644 --- a/drivers/dma-buf/dma-buf-sysfs-stats.c +++ b/drivers/dma-buf/dma-buf-sysfs-stats.c @@ -40,14 +40,11 @@ * * * ``/sys/kernel/dmabuf/buffers/<inode_number>/exporter_name`` * * ``/sys/kernel/dmabuf/buffers/<inode_number>/size`` - * * ``/sys/kernel/dmabuf/buffers/<inode_number>/attachments/<attach_uid>/device`` - * * ``/sys/kernel/dmabuf/buffers/<inode_number>/attachments/<attach_uid>/map_counter`` * - * The information in the interface can also be used to derive per-exporter and - * per-device usage statistics. The data from the interface can be gathered - * on error conditions or other important events to provide a snapshot of - * DMA-BUF usage. It can also be collected periodically by telemetry to monitor - * various metrics. + * The information in the interface can also be used to derive per-exporter + * statistics. The data from the interface can be gathered on error conditions + * or other important events to provide a snapshot of DMA-BUF usage. + * It can also be collected periodically by telemetry to monitor various metrics. * * Detailed documentation about the interface is present in * Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers. @@ -121,120 +118,6 @@ static struct kobj_type dma_buf_ktype = { .default_groups = dma_buf_stats_default_groups, }; -#define to_dma_buf_attach_entry_from_kobj(x) container_of(x, struct dma_buf_attach_sysfs_entry, kobj) - -struct dma_buf_attach_stats_attribute { - struct attribute attr; - ssize_t (*show)(struct dma_buf_attach_sysfs_entry *sysfs_entry, - struct dma_buf_attach_stats_attribute *attr, char *buf); -}; -#define to_dma_buf_attach_stats_attr(x) container_of(x, struct dma_buf_attach_stats_attribute, attr) - -static ssize_t dma_buf_attach_stats_attribute_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct dma_buf_attach_stats_attribute *attribute; - struct dma_buf_attach_sysfs_entry *sysfs_entry; - - attribute = to_dma_buf_attach_stats_attr(attr); - sysfs_entry = to_dma_buf_attach_entry_from_kobj(kobj); - - if (!attribute->show) - return -EIO; - - return attribute->show(sysfs_entry, attribute, buf); -} - -static const struct sysfs_ops dma_buf_attach_stats_sysfs_ops = { - .show = dma_buf_attach_stats_attribute_show, -}; - -static ssize_t map_counter_show(struct dma_buf_attach_sysfs_entry *sysfs_entry, - struct dma_buf_attach_stats_attribute *attr, - char *buf) -{ - return sysfs_emit(buf, "%u\n", sysfs_entry->map_counter); -} - -static struct dma_buf_attach_stats_attribute map_counter_attribute = - __ATTR_RO(map_counter); - -static struct attribute *dma_buf_attach_stats_default_attrs[] = { - &map_counter_attribute.attr, - NULL, -}; -ATTRIBUTE_GROUPS(dma_buf_attach_stats_default); - -static void dma_buf_attach_sysfs_release(struct kobject *kobj) -{ - struct dma_buf_attach_sysfs_entry *sysfs_entry; - - sysfs_entry = to_dma_buf_attach_entry_from_kobj(kobj); - kfree(sysfs_entry); -} - -static struct kobj_type dma_buf_attach_ktype = { - .sysfs_ops = &dma_buf_attach_stats_sysfs_ops, - .release = dma_buf_attach_sysfs_release, - .default_groups = dma_buf_attach_stats_default_groups, -}; - -void dma_buf_attach_stats_teardown(struct dma_buf_attachment *attach) -{ - struct dma_buf_attach_sysfs_entry *sysfs_entry; - - sysfs_entry = attach->sysfs_entry; - if (!sysfs_entry) - return; - - sysfs_delete_link(&sysfs_entry->kobj, &attach->dev->kobj, "device"); - - kobject_del(&sysfs_entry->kobj); - kobject_put(&sysfs_entry->kobj); -} - -int dma_buf_attach_stats_setup(struct dma_buf_attachment *attach, - unsigned int uid) -{ - struct dma_buf_attach_sysfs_entry *sysfs_entry; - int ret; - struct dma_buf *dmabuf; - - if (!attach) - return -EINVAL; - - dmabuf = attach->dmabuf; - - sysfs_entry = kzalloc(sizeof(struct dma_buf_attach_sysfs_entry), - GFP_KERNEL); - if (!sysfs_entry) - return -ENOMEM; - - sysfs_entry->kobj.kset = dmabuf->sysfs_entry->attach_stats_kset; - - attach->sysfs_entry = sysfs_entry; - - ret = kobject_init_and_add(&sysfs_entry->kobj, &dma_buf_attach_ktype, - NULL, "%u", uid); - if (ret) - goto kobj_err; - - ret = sysfs_create_link(&sysfs_entry->kobj, &attach->dev->kobj, - "device"); - if (ret) - goto link_err; - - return 0; - -link_err: - kobject_del(&sysfs_entry->kobj); -kobj_err: - kobject_put(&sysfs_entry->kobj); - attach->sysfs_entry = NULL; - - return ret; -} void dma_buf_stats_teardown(struct dma_buf *dmabuf) { struct dma_buf_sysfs_entry *sysfs_entry; @@ -243,7 +126,6 @@ void dma_buf_stats_teardown(struct dma_buf *dmabuf) if (!sysfs_entry) return; - kset_unregister(sysfs_entry->attach_stats_kset); kobject_del(&sysfs_entry->kobj); kobject_put(&sysfs_entry->kobj); } @@ -290,7 +172,6 @@ int dma_buf_stats_setup(struct dma_buf *dmabuf) { struct dma_buf_sysfs_entry *sysfs_entry; int ret; - struct kset *attach_stats_kset; if (!dmabuf || !dmabuf->file) return -EINVAL; @@ -315,21 +196,8 @@ int dma_buf_stats_setup(struct dma_buf *dmabuf) if (ret) goto err_sysfs_dmabuf; - /* create the directory for attachment stats */ - attach_stats_kset = kset_create_and_add("attachments", - &dmabuf_sysfs_no_uevent_ops, - &sysfs_entry->kobj); - if (!attach_stats_kset) { - ret = -ENOMEM; - goto err_sysfs_attach; - } - - sysfs_entry->attach_stats_kset = attach_stats_kset; - return 0; -err_sysfs_attach: - kobject_del(&sysfs_entry->kobj); err_sysfs_dmabuf: kobject_put(&sysfs_entry->kobj); dmabuf->sysfs_entry = NULL; diff --git a/drivers/dma-buf/dma-buf-sysfs-stats.h b/drivers/dma-buf/dma-buf-sysfs-stats.h index 5f4703249117..a49c6e2650cc 100644 --- a/drivers/dma-buf/dma-buf-sysfs-stats.h +++ b/drivers/dma-buf/dma-buf-sysfs-stats.h @@ -14,23 +14,8 @@ int dma_buf_init_sysfs_statistics(void); void dma_buf_uninit_sysfs_statistics(void); int dma_buf_stats_setup(struct dma_buf *dmabuf); -int dma_buf_attach_stats_setup(struct dma_buf_attachment *attach, - unsigned int uid); -static inline void dma_buf_update_attachment_map_count(struct dma_buf_attachment *attach, - int delta) -{ - struct dma_buf_attach_sysfs_entry *entry = attach->sysfs_entry; - entry->map_counter += delta; -} void dma_buf_stats_teardown(struct dma_buf *dmabuf); -void dma_buf_attach_stats_teardown(struct dma_buf_attachment *attach); -static inline unsigned int dma_buf_update_attach_uid(struct dma_buf *dmabuf) -{ - struct dma_buf_sysfs_entry *entry = dmabuf->sysfs_entry; - - return entry->attachment_uid++; -} #else static inline int dma_buf_init_sysfs_statistics(void) @@ -44,19 +29,7 @@ static inline int dma_buf_stats_setup(struct dma_buf *dmabuf) { return 0; } -static inline int dma_buf_attach_stats_setup(struct dma_buf_attachment *attach, - unsigned int uid) -{ - return 0; -} static inline void dma_buf_stats_teardown(struct dma_buf *dmabuf) {} -static inline void dma_buf_attach_stats_teardown(struct dma_buf_attachment *attach) {} -static inline void dma_buf_update_attachment_map_count(struct dma_buf_attachment *attach, - int delta) {} -static inline unsigned int dma_buf_update_attach_uid(struct dma_buf *dmabuf) -{ - return 0; -} #endif #endif // _DMA_BUF_SYSFS_STATS_H diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 510b42771974..63d32261b63f 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -76,12 +76,12 @@ static void dma_buf_release(struct dentry *dentry) */ BUG_ON(dmabuf->cb_shared.active || dmabuf->cb_excl.active); + dma_buf_stats_teardown(dmabuf); dmabuf->ops->release(dmabuf); if (dmabuf->resv == (struct dma_resv *)&dmabuf[1]) dma_resv_fini(dmabuf->resv); - dma_buf_stats_teardown(dmabuf); module_put(dmabuf->owner); kfree(dmabuf->name); kfree(dmabuf); @@ -738,7 +738,6 @@ dma_buf_dynamic_attach(struct dma_buf *dmabuf, struct device *dev, { struct dma_buf_attachment *attach; int ret; - unsigned int attach_uid; if (WARN_ON(!dmabuf || !dev)) return ERR_PTR(-EINVAL); @@ -764,13 +763,8 @@ dma_buf_dynamic_attach(struct dma_buf *dmabuf, struct device *dev, } dma_resv_lock(dmabuf->resv, NULL); list_add(&attach->node, &dmabuf->attachments); - attach_uid = dma_buf_update_attach_uid(dmabuf); dma_resv_unlock(dmabuf->resv); - ret = dma_buf_attach_stats_setup(attach, attach_uid); - if (ret) - goto err_sysfs; - /* When either the importer or the exporter can't handle dynamic * mappings we cache the mapping here to avoid issues with the * reservation object lock. @@ -797,7 +791,6 @@ dma_buf_dynamic_attach(struct dma_buf *dmabuf, struct device *dev, dma_resv_unlock(attach->dmabuf->resv); attach->sgt = sgt; attach->dir = DMA_BIDIRECTIONAL; - dma_buf_update_attachment_map_count(attach, 1 /* delta */); } return attach; @@ -814,7 +807,6 @@ err_unlock: if (dma_buf_is_dynamic(attach->dmabuf)) dma_resv_unlock(attach->dmabuf->resv); -err_sysfs: dma_buf_detach(dmabuf, attach); return ERR_PTR(ret); } @@ -864,7 +856,6 @@ void dma_buf_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach) dma_resv_lock(attach->dmabuf->resv, NULL); __unmap_dma_buf(attach, attach->sgt, attach->dir); - dma_buf_update_attachment_map_count(attach, -1 /* delta */); if (dma_buf_is_dynamic(attach->dmabuf)) { dmabuf->ops->unpin(attach); @@ -878,7 +869,6 @@ void dma_buf_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach) if (dmabuf->ops->detach) dmabuf->ops->detach(dmabuf, attach); - dma_buf_attach_stats_teardown(attach); kfree(attach); } EXPORT_SYMBOL_GPL(dma_buf_detach); @@ -1020,10 +1010,6 @@ struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *attach, } } #endif /* CONFIG_DMA_API_DEBUG */ - - if (!IS_ERR(sg_table)) - dma_buf_update_attachment_map_count(attach, 1 /* delta */); - return sg_table; } EXPORT_SYMBOL_GPL(dma_buf_map_attachment); @@ -1061,8 +1047,6 @@ void dma_buf_unmap_attachment(struct dma_buf_attachment *attach, if (dma_buf_is_dynamic(attach->dmabuf) && !IS_ENABLED(CONFIG_DMABUF_MOVE_NOTIFY)) dma_buf_unpin(attach); - - dma_buf_update_attachment_map_count(attach, -1 /* delta */); } EXPORT_SYMBOL_GPL(dma_buf_unmap_attachment); diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 1db738d5b301..6822727a5e98 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -251,6 +251,38 @@ config QCOM_SCM_DOWNLOAD_MODE_DEFAULT Say Y here to enable "download mode" by default. +config SYSFB + bool + default y + depends on X86 || ARM || ARM64 || RISCV || COMPILE_TEST + +config SYSFB_SIMPLEFB + bool "Mark VGA/VBE/EFI FB as generic system framebuffer" + depends on SYSFB + help + Firmwares often provide initial graphics framebuffers so the BIOS, + bootloader or kernel can show basic video-output during boot for + user-guidance and debugging. Historically, x86 used the VESA BIOS + Extensions and EFI-framebuffers for this, which are mostly limited + to x86 BIOS or EFI systems. + This option, if enabled, marks VGA/VBE/EFI framebuffers as generic + framebuffers so the new generic system-framebuffer drivers can be + used instead. If the framebuffer is not compatible with the generic + modes, it is advertised as fallback platform framebuffer so legacy + drivers like efifb, vesafb and uvesafb can pick it up. + If this option is not selected, all system framebuffers are always + marked as fallback platform framebuffers as usual. + + Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will + not be able to pick up generic system framebuffers if this option + is selected. You are highly encouraged to enable simplefb as + replacement if you select this option. simplefb can correctly deal + with generic system framebuffers. But you should still keep vesafb + and others enabled as fallback if a system framebuffer is + incompatible with simplefb. + + If unsure, say Y. + config TI_SCI_PROTOCOL tristate "TI System Control Interface (TISCI) Message Protocol" depends on TI_MESSAGE_MANAGER diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile index 546ac8e7f6d0..705fabe88156 100644 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@ -18,6 +18,8 @@ obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o obj-$(CONFIG_RASPBERRYPI_FIRMWARE) += raspberrypi.o obj-$(CONFIG_FW_CFG_SYSFS) += qemu_fw_cfg.o obj-$(CONFIG_QCOM_SCM) += qcom_scm.o qcom_scm-smc.o qcom_scm-legacy.o +obj-$(CONFIG_SYSFB) += sysfb.o +obj-$(CONFIG_SYSFB_SIMPLEFB) += sysfb_simplefb.o obj-$(CONFIG_TI_SCI_PROTOCOL) += ti_sci.o obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o obj-$(CONFIG_TURRIS_MOX_RWTM) += turris-mox-rwtm.o diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index 467e94259679..c02ff25dd477 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -36,6 +36,8 @@ obj-$(CONFIG_LOAD_UEFI_KEYS) += mokvar-table.o fake_map-y += fake_mem.o fake_map-$(CONFIG_X86) += x86_fake_mem.o +obj-$(CONFIG_SYSFB) += sysfb_efi.o + arm-obj-$(CONFIG_EFI) := efi-init.o arm-runtime.o obj-$(CONFIG_ARM) += $(arm-obj-y) obj-$(CONFIG_ARM64) += $(arm-obj-y) diff --git a/drivers/firmware/efi/efi-init.c b/drivers/firmware/efi/efi-init.c index a552a08a1741..b19ce1a83f91 100644 --- a/drivers/firmware/efi/efi-init.c +++ b/drivers/firmware/efi/efi-init.c @@ -275,93 +275,3 @@ void __init efi_init(void) } #endif } - -static bool efifb_overlaps_pci_range(const struct of_pci_range *range) -{ - u64 fb_base = screen_info.lfb_base; - - if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) - fb_base |= (u64)(unsigned long)screen_info.ext_lfb_base << 32; - - return fb_base >= range->cpu_addr && - fb_base < (range->cpu_addr + range->size); -} - -static struct device_node *find_pci_overlap_node(void) -{ - struct device_node *np; - - for_each_node_by_type(np, "pci") { - struct of_pci_range_parser parser; - struct of_pci_range range; - int err; - - err = of_pci_range_parser_init(&parser, np); - if (err) { - pr_warn("of_pci_range_parser_init() failed: %d\n", err); - continue; - } - - for_each_of_pci_range(&parser, &range) - if (efifb_overlaps_pci_range(&range)) - return np; - } - return NULL; -} - -/* - * If the efifb framebuffer is backed by a PCI graphics controller, we have - * to ensure that this relation is expressed using a device link when - * running in DT mode, or the probe order may be reversed, resulting in a - * resource reservation conflict on the memory window that the efifb - * framebuffer steals from the PCIe host bridge. - */ -static int efifb_add_links(struct fwnode_handle *fwnode) -{ - struct device_node *sup_np; - - sup_np = find_pci_overlap_node(); - - /* - * If there's no PCI graphics controller backing the efifb, we are - * done here. - */ - if (!sup_np) - return 0; - - fwnode_link_add(fwnode, of_fwnode_handle(sup_np)); - of_node_put(sup_np); - - return 0; -} - -static const struct fwnode_operations efifb_fwnode_ops = { - .add_links = efifb_add_links, -}; - -static struct fwnode_handle efifb_fwnode; - -static int __init register_gop_device(void) -{ - struct platform_device *pd; - int err; - - if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) - return 0; - - pd = platform_device_alloc("efi-framebuffer", 0); - if (!pd) - return -ENOMEM; - - if (IS_ENABLED(CONFIG_PCI)) { - fwnode_init(&efifb_fwnode, &efifb_fwnode_ops); - pd->dev.fwnode = &efifb_fwnode; - } - - err = platform_device_add_data(pd, &screen_info, sizeof(screen_info)); - if (err) - return err; - - return platform_device_add(pd); -} -subsys_initcall(register_gop_device); diff --git a/drivers/firmware/efi/sysfb_efi.c b/drivers/firmware/efi/sysfb_efi.c new file mode 100644 index 000000000000..f51865e1b876 --- /dev/null +++ b/drivers/firmware/efi/sysfb_efi.c @@ -0,0 +1,356 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Generic System Framebuffers + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + * + * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com> + */ + +/* + * EFI Quirks + * Several EFI systems do not correctly advertise their boot framebuffers. + * Hence, we use this static table of known broken machines and fix up the + * information so framebuffer drivers can load correctly. + */ + +#include <linux/dmi.h> +#include <linux/err.h> +#include <linux/efi.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/of_address.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/screen_info.h> +#include <linux/sysfb.h> +#include <video/vga.h> + +#include <asm/efi.h> + +enum { + OVERRIDE_NONE = 0x0, + OVERRIDE_BASE = 0x1, + OVERRIDE_STRIDE = 0x2, + OVERRIDE_HEIGHT = 0x4, + OVERRIDE_WIDTH = 0x8, +}; + +struct efifb_dmi_info efifb_dmi_list[] = { + [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */ + [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, + [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */ + [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE }, + [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE }, + [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE }, + [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE }, + [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + /* 11" Macbook Air 3,1 passes the wrong stride */ + [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE }, + [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */ + [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE }, + [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } +}; + +void efifb_setup_from_dmi(struct screen_info *si, const char *opt) +{ + int i; + + for (i = 0; i < M_UNKNOWN; i++) { + if (efifb_dmi_list[i].base != 0 && + !strcmp(opt, efifb_dmi_list[i].optname)) { + si->lfb_base = efifb_dmi_list[i].base; + si->lfb_linelength = efifb_dmi_list[i].stride; + si->lfb_width = efifb_dmi_list[i].width; + si->lfb_height = efifb_dmi_list[i].height; + } + } +} + +#define choose_value(dmivalue, fwvalue, field, flags) ({ \ + typeof(fwvalue) _ret_ = fwvalue; \ + if ((flags) & (field)) \ + _ret_ = dmivalue; \ + else if ((fwvalue) == 0) \ + _ret_ = dmivalue; \ + _ret_; \ + }) + +static int __init efifb_set_system(const struct dmi_system_id *id) +{ + struct efifb_dmi_info *info = id->driver_data; + + if (info->base == 0 && info->height == 0 && info->width == 0 && + info->stride == 0) + return 0; + + /* Trust the bootloader over the DMI tables */ + if (screen_info.lfb_base == 0) { +#if defined(CONFIG_PCI) + struct pci_dev *dev = NULL; + int found_bar = 0; +#endif + if (info->base) { + screen_info.lfb_base = choose_value(info->base, + screen_info.lfb_base, OVERRIDE_BASE, + info->flags); + +#if defined(CONFIG_PCI) + /* make sure that the address in the table is actually + * on a VGA device's PCI BAR */ + + for_each_pci_dev(dev) { + int i; + if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) + continue; + for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + resource_size_t start, end; + unsigned long flags; + + flags = pci_resource_flags(dev, i); + if (!(flags & IORESOURCE_MEM)) + continue; + + if (flags & IORESOURCE_UNSET) + continue; + + if (pci_resource_len(dev, i) == 0) + continue; + + start = pci_resource_start(dev, i); + end = pci_resource_end(dev, i); + if (screen_info.lfb_base >= start && + screen_info.lfb_base < end) { + found_bar = 1; + break; + } + } + } + if (!found_bar) + screen_info.lfb_base = 0; +#endif + } + } + if (screen_info.lfb_base) { + screen_info.lfb_linelength = choose_value(info->stride, + screen_info.lfb_linelength, OVERRIDE_STRIDE, + info->flags); + screen_info.lfb_width = choose_value(info->width, + screen_info.lfb_width, OVERRIDE_WIDTH, + info->flags); + screen_info.lfb_height = choose_value(info->height, + screen_info.lfb_height, OVERRIDE_HEIGHT, + info->flags); + if (screen_info.orig_video_isVGA == 0) + screen_info.orig_video_isVGA = VIDEO_TYPE_EFI; + } else { + screen_info.lfb_linelength = 0; + screen_info.lfb_width = 0; + screen_info.lfb_height = 0; + screen_info.orig_video_isVGA = 0; + return 0; + } + + printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x " + "(%dx%d, stride %d)\n", id->ident, + screen_info.lfb_base, screen_info.lfb_width, + screen_info.lfb_height, screen_info.lfb_linelength); + + return 1; +} + +#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \ + { \ + efifb_set_system, \ + name, \ + { \ + DMI_MATCH(DMI_BIOS_VENDOR, vendor), \ + DMI_MATCH(DMI_PRODUCT_NAME, name) \ + }, \ + &efifb_dmi_list[enumid] \ + } + +static const struct dmi_system_id efifb_dmi_system_table[] __initconst = { + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2), + {}, +}; + +/* + * Some devices have a portrait LCD but advertise a landscape resolution (and + * pitch). We simply swap width and height for these devices so that we can + * correctly deal with some of them coming with multiple resolutions. + */ +static const struct dmi_system_id efifb_dmi_swap_width_height[] __initconst = { + { + /* + * Lenovo MIIX310-10ICR, only some batches have the troublesome + * 800x1280 portrait screen. Luckily the portrait version has + * its own BIOS version, so we match on that. + */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), + DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1HCN44WW"), + }, + }, + { + /* Lenovo MIIX 320-10ICR with 800x1280 portrait screen */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, + "Lenovo MIIX 320-10ICR"), + }, + }, + { + /* Lenovo D330 with 800x1280 or 1200x1920 portrait screen */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, + "Lenovo ideapad D330-10IGM"), + }, + }, + {}, +}; + +static bool efifb_overlaps_pci_range(const struct of_pci_range *range) +{ + u64 fb_base = screen_info.lfb_base; + + if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) + fb_base |= (u64)(unsigned long)screen_info.ext_lfb_base << 32; + + return fb_base >= range->cpu_addr && + fb_base < (range->cpu_addr + range->size); +} + +static struct device_node *find_pci_overlap_node(void) +{ + struct device_node *np; + + for_each_node_by_type(np, "pci") { + struct of_pci_range_parser parser; + struct of_pci_range range; + int err; + + err = of_pci_range_parser_init(&parser, np); + if (err) { + pr_warn("of_pci_range_parser_init() failed: %d\n", err); + continue; + } + + for_each_of_pci_range(&parser, &range) + if (efifb_overlaps_pci_range(&range)) + return np; + } + return NULL; +} + +/* + * If the efifb framebuffer is backed by a PCI graphics controller, we have + * to ensure that this relation is expressed using a device link when + * running in DT mode, or the probe order may be reversed, resulting in a + * resource reservation conflict on the memory window that the efifb + * framebuffer steals from the PCIe host bridge. + */ +static int efifb_add_links(struct fwnode_handle *fwnode) +{ + struct device_node *sup_np; + + sup_np = find_pci_overlap_node(); + + /* + * If there's no PCI graphics controller backing the efifb, we are + * done here. + */ + if (!sup_np) + return 0; + + fwnode_link_add(fwnode, of_fwnode_handle(sup_np)); + of_node_put(sup_np); + + return 0; +} + +static const struct fwnode_operations efifb_fwnode_ops = { + .add_links = efifb_add_links, +}; + +static struct fwnode_handle efifb_fwnode; + +__init void sysfb_apply_efi_quirks(struct platform_device *pd) +{ + if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || + !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS)) + dmi_check_system(efifb_dmi_system_table); + + if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI && + dmi_check_system(efifb_dmi_swap_width_height)) { + u16 temp = screen_info.lfb_width; + + screen_info.lfb_width = screen_info.lfb_height; + screen_info.lfb_height = temp; + screen_info.lfb_linelength = 4 * screen_info.lfb_width; + } + + if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI && IS_ENABLED(CONFIG_PCI)) { + fwnode_init(&efifb_fwnode, &efifb_fwnode_ops); + pd->dev.fwnode = &efifb_fwnode; + } +} diff --git a/drivers/firmware/sysfb.c b/drivers/firmware/sysfb.c new file mode 100644 index 000000000000..2bfbb05f7d89 --- /dev/null +++ b/drivers/firmware/sysfb.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Generic System Framebuffers + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + */ + +/* + * Simple-Framebuffer support + * Create a platform-device for any available boot framebuffer. The + * simple-framebuffer platform device is already available on DT systems, so + * this module parses the global "screen_info" object and creates a suitable + * platform device compatible with the "simple-framebuffer" DT object. If + * the framebuffer is incompatible, we instead create a legacy + * "vesa-framebuffer", "efi-framebuffer" or "platform-framebuffer" device and + * pass the screen_info as platform_data. This allows legacy drivers + * to pick these devices up without messing with simple-framebuffer drivers. + * The global "screen_info" is still valid at all times. + * + * If CONFIG_SYSFB_SIMPLEFB is not selected, never register "simple-framebuffer" + * platform devices, but only use legacy framebuffer devices for + * backwards compatibility. + * + * TODO: We set the dev_id field of all platform-devices to 0. This allows + * other OF/DT parsers to create such devices, too. However, they must + * start at offset 1 for this to work. + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/platform_data/simplefb.h> +#include <linux/platform_device.h> +#include <linux/screen_info.h> +#include <linux/sysfb.h> + +static __init int sysfb_init(void) +{ + struct screen_info *si = &screen_info; + struct simplefb_platform_data mode; + struct platform_device *pd; + const char *name; + bool compatible; + int ret; + + /* try to create a simple-framebuffer device */ + compatible = sysfb_parse_mode(si, &mode); + if (compatible) { + ret = sysfb_create_simplefb(si, &mode); + if (!ret) + return 0; + } + + /* if the FB is incompatible, create a legacy framebuffer device */ + if (si->orig_video_isVGA == VIDEO_TYPE_EFI) + name = "efi-framebuffer"; + else if (si->orig_video_isVGA == VIDEO_TYPE_VLFB) + name = "vesa-framebuffer"; + else + name = "platform-framebuffer"; + + pd = platform_device_alloc(name, 0); + if (!pd) + return -ENOMEM; + + sysfb_apply_efi_quirks(pd); + + ret = platform_device_add_data(pd, si, sizeof(*si)); + if (ret) + goto err; + + ret = platform_device_add(pd); + if (ret) + goto err; + + return 0; +err: + platform_device_put(pd); + return ret; +} + +/* must execute after PCI subsystem for EFI quirks */ +device_initcall(sysfb_init); diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c new file mode 100644 index 000000000000..b86761904949 --- /dev/null +++ b/drivers/firmware/sysfb_simplefb.c @@ -0,0 +1,124 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Generic System Framebuffers + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + */ + +/* + * simple-framebuffer probing + * Try to convert "screen_info" into a "simple-framebuffer" compatible mode. + * If the mode is incompatible, we return "false" and let the caller create + * legacy nodes instead. + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/platform_data/simplefb.h> +#include <linux/platform_device.h> +#include <linux/screen_info.h> +#include <linux/sysfb.h> + +static const char simplefb_resname[] = "BOOTFB"; +static const struct simplefb_format formats[] = SIMPLEFB_FORMATS; + +/* try parsing screen_info into a simple-framebuffer mode struct */ +__init bool sysfb_parse_mode(const struct screen_info *si, + struct simplefb_platform_data *mode) +{ + const struct simplefb_format *f; + __u8 type; + unsigned int i; + + type = si->orig_video_isVGA; + if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI) + return false; + + for (i = 0; i < ARRAY_SIZE(formats); ++i) { + f = &formats[i]; + if (si->lfb_depth == f->bits_per_pixel && + si->red_size == f->red.length && + si->red_pos == f->red.offset && + si->green_size == f->green.length && + si->green_pos == f->green.offset && + si->blue_size == f->blue.length && + si->blue_pos == f->blue.offset && + si->rsvd_size == f->transp.length && + si->rsvd_pos == f->transp.offset) { + mode->format = f->name; + mode->width = si->lfb_width; + mode->height = si->lfb_height; + mode->stride = si->lfb_linelength; + return true; + } + } + + return false; +} + +__init int sysfb_create_simplefb(const struct screen_info *si, + const struct simplefb_platform_data *mode) +{ + struct platform_device *pd; + struct resource res; + u64 base, size; + u32 length; + int ret; + + /* + * If the 64BIT_BASE capability is set, ext_lfb_base will contain the + * upper half of the base address. Assemble the address, then make sure + * it is valid and we can actually access it. + */ + base = si->lfb_base; + if (si->capabilities & VIDEO_CAPABILITY_64BIT_BASE) + base |= (u64)si->ext_lfb_base << 32; + if (!base || (u64)(resource_size_t)base != base) { + printk(KERN_DEBUG "sysfb: inaccessible VRAM base\n"); + return -EINVAL; + } + + /* + * Don't use lfb_size as IORESOURCE size, since it may contain the + * entire VMEM, and thus require huge mappings. Use just the part we + * need, that is, the part where the framebuffer is located. But verify + * that it does not exceed the advertised VMEM. + * Note that in case of VBE, the lfb_size is shifted by 16 bits for + * historical reasons. + */ + size = si->lfb_size; + if (si->orig_video_isVGA == VIDEO_TYPE_VLFB) + size <<= 16; + length = mode->height * mode->stride; + if (length > size) { + printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n"); + return -EINVAL; + } + length = PAGE_ALIGN(length); + + /* setup IORESOURCE_MEM as framebuffer memory */ + memset(&res, 0, sizeof(res)); + res.flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res.name = simplefb_resname; + res.start = base; + res.end = res.start + length - 1; + if (res.end <= res.start) + return -EINVAL; + + pd = platform_device_alloc("simple-framebuffer", 0); + if (!pd) + return -ENOMEM; + + sysfb_apply_efi_quirks(pd); + + ret = platform_device_add_resources(pd, &res, 1); + if (ret) + return ret; + + ret = platform_device_add_data(pd, mode, sizeof(*mode)); + if (ret) + return ret; + + return platform_device_add(pd); +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d303e88e3c23..8398daa0c06a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1266,15 +1266,16 @@ bool amdgpu_device_need_post(struct amdgpu_device *adev) /** * amdgpu_device_vga_set_decode - enable/disable vga decode * - * @cookie: amdgpu_device pointer + * @pdev: PCI device pointer * @state: enable/disable vga decode * * Enable/disable vga decode (all asics). * Returns VGA resource flags. */ -static unsigned int amdgpu_device_vga_set_decode(void *cookie, bool state) +static unsigned int amdgpu_device_vga_set_decode(struct pci_dev *pdev, + bool state) { - struct amdgpu_device *adev = cookie; + struct amdgpu_device *adev = drm_to_adev(pci_get_drvdata(pdev)); amdgpu_asic_set_vga_state(adev, state); if (state) return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM | @@ -3715,7 +3716,7 @@ fence_driver_init: /* this will fail for cards that aren't VGA class devices, just * ignore it */ if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) - vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode); + vga_client_register(adev->pdev, amdgpu_device_vga_set_decode); if (amdgpu_device_supports_px(ddev)) { px = true; @@ -3838,7 +3839,7 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev) vga_switcheroo_fini_domain_pm_ops(adev->dev); } if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) - vga_client_register(adev->pdev, NULL, NULL, NULL); + vga_client_unregister(adev->pdev); if (IS_ENABLED(CONFIG_PERF_EVENTS)) amdgpu_pmu_fini(adev); diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 911f9f414774..39ca338eb80b 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -337,6 +337,11 @@ int ast_mode_config_init(struct ast_private *ast); #define AST_DP501_LINKRATE 0xf014 #define AST_DP501_EDID_DATA 0xf020 +/* Define for Soc scratched reg */ +#define AST_VRAM_INIT_STATUS_MASK GENMASK(7, 6) +//#define AST_VRAM_INIT_BY_BMC BIT(7) +//#define AST_VRAM_INIT_READY BIT(6) + int ast_mm_init(struct ast_private *ast); /* ast post */ @@ -346,6 +351,7 @@ bool ast_is_vga_enabled(struct drm_device *dev); void ast_post_gpu(struct drm_device *dev); u32 ast_mindwm(struct ast_private *ast, u32 r); void ast_moutdwm(struct ast_private *ast, u32 r, u32 v); +void ast_patch_ahb_2500(struct ast_private *ast); /* ast dp501 */ void ast_set_dp501_video_output(struct drm_device *dev, u8 mode); bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size); diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 2aff2e6cf450..79a361867955 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -97,6 +97,11 @@ static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev) jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) { + /* Patch AST2500 */ + if (((pdev->revision & 0xF0) == 0x40) + && ((jregd0 & AST_VRAM_INIT_STATUS_MASK) == 0)) + ast_patch_ahb_2500(ast); + /* Double check it's actually working */ data = ast_read32(ast, 0xf004); if ((data != 0xFFFFFFFF) && (data != 0x00)) { diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index f5d58c3088fe..f32da620a123 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -1298,7 +1298,7 @@ static enum drm_connector_status ast_connector_detect(struct drm_connector int r; r = ast_get_modes(connector); - if (r < 0) + if (r <= 0) return connector_status_disconnected; return connector_status_connected; diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c index 0607658dde51..b5d92f652fd8 100644 --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -2028,6 +2028,40 @@ static bool ast_dram_init_2500(struct ast_private *ast) return true; } +void ast_patch_ahb_2500(struct ast_private *ast) +{ + u32 data; + + /* Clear bus lock condition */ + ast_moutdwm(ast, 0x1e600000, 0xAEED1A03); + ast_moutdwm(ast, 0x1e600084, 0x00010000); + ast_moutdwm(ast, 0x1e600088, 0x00000000); + ast_moutdwm(ast, 0x1e6e2000, 0x1688A8A8); + data = ast_mindwm(ast, 0x1e6e2070); + if (data & 0x08000000) { /* check fast reset */ + /* + * If "Fast restet" is enabled for ARM-ICE debugger, + * then WDT needs to enable, that + * WDT04 is WDT#1 Reload reg. + * WDT08 is WDT#1 counter restart reg to avoid system deadlock + * WDT0C is WDT#1 control reg + * [6:5]:= 01:Full chip + * [4]:= 1:1MHz clock source + * [1]:= 1:WDT will be cleeared and disabled after timeout occurs + * [0]:= 1:WDT enable + */ + ast_moutdwm(ast, 0x1E785004, 0x00000010); + ast_moutdwm(ast, 0x1E785008, 0x00004755); + ast_moutdwm(ast, 0x1E78500c, 0x00000033); + udelay(1000); + } + do { + ast_moutdwm(ast, 0x1e6e2000, 0x1688A8A8); + data = ast_mindwm(ast, 0x1e6e2000); + } while (data != 1); + ast_moutdwm(ast, 0x1e6e207c, 0x08000000); /* clear fast reset */ +} + void ast_post_chip_2500(struct drm_device *dev) { struct ast_private *ast = to_ast_private(dev); @@ -2035,39 +2069,44 @@ void ast_post_chip_2500(struct drm_device *dev) u8 reg; reg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); - if ((reg & 0x80) == 0) {/* vga only */ + if ((reg & AST_VRAM_INIT_STATUS_MASK) == 0) {/* vga only */ /* Clear bus lock condition */ - ast_moutdwm(ast, 0x1e600000, 0xAEED1A03); - ast_moutdwm(ast, 0x1e600084, 0x00010000); - ast_moutdwm(ast, 0x1e600088, 0x00000000); - ast_moutdwm(ast, 0x1e6e2000, 0x1688A8A8); - ast_write32(ast, 0xf004, 0x1e6e0000); - ast_write32(ast, 0xf000, 0x1); - ast_write32(ast, 0x12000, 0x1688a8a8); - while (ast_read32(ast, 0x12000) != 0x1) - ; - - ast_write32(ast, 0x10000, 0xfc600309); - while (ast_read32(ast, 0x10000) != 0x1) - ; + ast_patch_ahb_2500(ast); + + /* Disable watchdog */ + ast_moutdwm(ast, 0x1E78502C, 0x00000000); + ast_moutdwm(ast, 0x1E78504C, 0x00000000); + + /* + * Reset USB port to patch USB unknown device issue + * SCU90 is Multi-function Pin Control #5 + * [29]:= 1:Enable USB2.0 Host port#1 (that the mutually shared USB2.0 Hub + * port). + * SCU94 is Multi-function Pin Control #6 + * [14:13]:= 1x:USB2.0 Host2 controller + * SCU70 is Hardware Strap reg + * [23]:= 1:CLKIN is 25MHz and USBCK1 = 24/48 MHz (determined by + * [18]: 0(24)/1(48) MHz) + * SCU7C is Write clear reg to SCU70 + * [23]:= write 1 and then SCU70[23] will be clear as 0b. + */ + ast_moutdwm(ast, 0x1E6E2090, 0x20000000); + ast_moutdwm(ast, 0x1E6E2094, 0x00004000); + if (ast_mindwm(ast, 0x1E6E2070) & 0x00800000) { + ast_moutdwm(ast, 0x1E6E207C, 0x00800000); + mdelay(100); + ast_moutdwm(ast, 0x1E6E2070, 0x00800000); + } + /* Modify eSPI reset pin */ + temp = ast_mindwm(ast, 0x1E6E2070); + if (temp & 0x02000000) + ast_moutdwm(ast, 0x1E6E207C, 0x00004000); /* Slow down CPU/AHB CLK in VGA only mode */ temp = ast_read32(ast, 0x12008); temp |= 0x73; ast_write32(ast, 0x12008, temp); - /* Reset USB port to patch USB unknown device issue */ - ast_moutdwm(ast, 0x1e6e2090, 0x20000000); - temp = ast_mindwm(ast, 0x1e6e2094); - temp |= 0x00004000; - ast_moutdwm(ast, 0x1e6e2094, temp); - temp = ast_mindwm(ast, 0x1e6e2070); - if (temp & 0x00800000) { - ast_moutdwm(ast, 0x1e6e207c, 0x00800000); - mdelay(100); - ast_moutdwm(ast, 0x1e6e2070, 0x00800000); - } - if (!ast_dram_init_2500(ast)) drm_err(dev, "DRAM init failed !\n"); diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index b59b26a71ad5..3a64a6a79ade 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -61,6 +61,35 @@ * trusted clients. */ +static bool drm_is_current_master_locked(struct drm_file *fpriv) +{ + lockdep_assert_held_once(&fpriv->minor->dev->master_mutex); + + return fpriv->is_master && drm_lease_owner(fpriv->master) == fpriv->minor->dev->master; +} + +/** + * drm_is_current_master - checks whether @priv is the current master + * @fpriv: DRM file private + * + * Checks whether @fpriv is current master on its device. This decides whether a + * client is allowed to run DRM_MASTER IOCTLs. + * + * Most of the modern IOCTL which require DRM_MASTER are for kernel modesetting + * - the current master is assumed to own the non-shareable display hardware. + */ +bool drm_is_current_master(struct drm_file *fpriv) +{ + bool ret; + + mutex_lock(&fpriv->minor->dev->master_mutex); + ret = drm_is_current_master_locked(fpriv); + mutex_unlock(&fpriv->minor->dev->master_mutex); + + return ret; +} +EXPORT_SYMBOL(drm_is_current_master); + int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_auth *auth = data; @@ -135,16 +164,18 @@ static void drm_set_master(struct drm_device *dev, struct drm_file *fpriv, static int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv) { struct drm_master *old_master; + struct drm_master *new_master; lockdep_assert_held_once(&dev->master_mutex); WARN_ON(fpriv->is_master); old_master = fpriv->master; - fpriv->master = drm_master_create(dev); - if (!fpriv->master) { - fpriv->master = old_master; + new_master = drm_master_create(dev); + if (!new_master) return -ENOMEM; - } + spin_lock(&fpriv->master_lookup_lock); + fpriv->master = new_master; + spin_unlock(&fpriv->master_lookup_lock); fpriv->is_master = 1; fpriv->authenticated = 1; @@ -223,7 +254,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, if (ret) goto out_unlock; - if (drm_is_current_master(file_priv)) + if (drm_is_current_master_locked(file_priv)) goto out_unlock; if (dev->master) { @@ -272,7 +303,7 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data, if (ret) goto out_unlock; - if (!drm_is_current_master(file_priv)) { + if (!drm_is_current_master_locked(file_priv)) { ret = -EINVAL; goto out_unlock; } @@ -303,10 +334,13 @@ int drm_master_open(struct drm_file *file_priv) * any master object for render clients */ mutex_lock(&dev->master_mutex); - if (!dev->master) + if (!dev->master) { ret = drm_new_set_master(dev, file_priv); - else + } else { + spin_lock(&file_priv->master_lookup_lock); file_priv->master = drm_master_get(dev->master); + spin_unlock(&file_priv->master_lookup_lock); + } mutex_unlock(&dev->master_mutex); return ret; @@ -322,7 +356,7 @@ void drm_master_release(struct drm_file *file_priv) if (file_priv->magic) idr_remove(&file_priv->master->magic_map, file_priv->magic); - if (!drm_is_current_master(file_priv)) + if (!drm_is_current_master_locked(file_priv)) goto out; drm_legacy_lock_master_cleanup(dev, master); @@ -344,22 +378,6 @@ out: } /** - * drm_is_current_master - checks whether @priv is the current master - * @fpriv: DRM file private - * - * Checks whether @fpriv is current master on its device. This decides whether a - * client is allowed to run DRM_MASTER IOCTLs. - * - * Most of the modern IOCTL which require DRM_MASTER are for kernel modesetting - * - the current master is assumed to own the non-shareable display hardware. - */ -bool drm_is_current_master(struct drm_file *fpriv) -{ - return fpriv->is_master && drm_lease_owner(fpriv->master) == fpriv->minor->dev->master; -} -EXPORT_SYMBOL(drm_is_current_master); - -/** * drm_master_get - reference a master pointer * @master: &struct drm_master * @@ -372,6 +390,31 @@ struct drm_master *drm_master_get(struct drm_master *master) } EXPORT_SYMBOL(drm_master_get); +/** + * drm_file_get_master - reference &drm_file.master of @file_priv + * @file_priv: DRM file private + * + * Increments the reference count of @file_priv's &drm_file.master and returns + * the &drm_file.master. If @file_priv has no &drm_file.master, returns NULL. + * + * Master pointers returned from this function should be unreferenced using + * drm_master_put(). + */ +struct drm_master *drm_file_get_master(struct drm_file *file_priv) +{ + struct drm_master *master = NULL; + + spin_lock(&file_priv->master_lookup_lock); + if (!file_priv->master) + goto unlock; + master = drm_master_get(file_priv->master); + +unlock: + spin_unlock(&file_priv->master_lookup_lock); + return master; +} +EXPORT_SYMBOL(drm_file_get_master); + static void drm_master_destroy(struct kref *kref) { struct drm_master *master = container_of(kref, struct drm_master, refcount); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index da39e7ff6965..2ba257b1ae20 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2414,6 +2414,7 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, struct drm_mode_modeinfo u_mode; struct drm_mode_modeinfo __user *mode_ptr; uint32_t __user *encoder_ptr; + bool is_current_master; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EOPNOTSUPP; @@ -2444,9 +2445,11 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, out_resp->connector_type = connector->connector_type; out_resp->connector_type_id = connector->connector_type_id; + is_current_master = drm_is_current_master(file_priv); + mutex_lock(&dev->mode_config.mutex); if (out_resp->count_modes == 0) { - if (drm_is_current_master(file_priv)) + if (is_current_master) connector->funcs->fill_modes(connector, dev->mode_config.max_width, dev->mode_config.max_height); diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 3d7182001004..b0a826489488 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -91,6 +91,7 @@ static int drm_clients_info(struct seq_file *m, void *data) mutex_lock(&dev->filelist_mutex); list_for_each_entry_reverse(priv, &dev->filelist, lhead) { struct task_struct *task; + bool is_current_master = drm_is_current_master(priv); rcu_read_lock(); /* locks pid_task()->comm */ task = pid_task(priv->pid, PIDTYPE_PID); @@ -99,7 +100,7 @@ static int drm_clients_info(struct seq_file *m, void *data) task ? task->comm : "<unknown>", pid_vnr(priv->pid), priv->minor->index, - drm_is_current_master(priv) ? 'y' : 'n', + is_current_master ? 'y' : 'n', priv->authenticated ? 'y' : 'n', from_kuid_munged(seq_user_ns(m), uid), priv->magic); diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index d4f0bac6f8f8..ceb1a9723855 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -176,6 +176,7 @@ struct drm_file *drm_file_alloc(struct drm_minor *minor) init_waitqueue_head(&file->event_wait); file->event_space = 4096; /* set aside 4k for event buffer */ + spin_lock_init(&file->master_lookup_lock); mutex_init(&file->event_read_lock); if (drm_core_check_feature(dev, DRIVER_GEM)) diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 945dd82e2ea3..201eae4bba6c 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -136,7 +136,7 @@ int drm_irq_install(struct drm_device *dev, int irq) if (ret < 0) { dev->irq_enabled = false; if (drm_core_check_feature(dev, DRIVER_LEGACY)) - vga_client_register(to_pci_dev(dev->dev), NULL, NULL, NULL); + vga_client_unregister(to_pci_dev(dev->dev)); free_irq(irq, dev); } else { dev->irq = irq; @@ -198,7 +198,7 @@ int drm_irq_uninstall(struct drm_device *dev) DRM_DEBUG("irq=%d\n", dev->irq); if (drm_core_check_feature(dev, DRIVER_LEGACY)) - vga_client_register(to_pci_dev(dev->dev), NULL, NULL, NULL); + vga_client_unregister(to_pci_dev(dev->dev)); if (dev->driver->irq_uninstall) dev->driver->irq_uninstall(dev); diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c index 00fb433bcef1..92eac73d9001 100644 --- a/drivers/gpu/drm/drm_lease.c +++ b/drivers/gpu/drm/drm_lease.c @@ -106,10 +106,19 @@ static bool _drm_has_leased(struct drm_master *master, int id) */ bool _drm_lease_held(struct drm_file *file_priv, int id) { - if (!file_priv || !file_priv->master) + bool ret; + struct drm_master *master; + + if (!file_priv) return true; - return _drm_lease_held_master(file_priv->master, id); + master = drm_file_get_master(file_priv); + if (!master) + return true; + ret = _drm_lease_held_master(master, id); + drm_master_put(&master); + + return ret; } /** @@ -128,13 +137,22 @@ bool drm_lease_held(struct drm_file *file_priv, int id) struct drm_master *master; bool ret; - if (!file_priv || !file_priv->master || !file_priv->master->lessor) + if (!file_priv) return true; - master = file_priv->master; + master = drm_file_get_master(file_priv); + if (!master) + return true; + if (!master->lessor) { + ret = true; + goto out; + } mutex_lock(&master->dev->mode_config.idr_mutex); ret = _drm_lease_held_master(master, id); mutex_unlock(&master->dev->mode_config.idr_mutex); + +out: + drm_master_put(&master); return ret; } @@ -154,10 +172,16 @@ uint32_t drm_lease_filter_crtcs(struct drm_file *file_priv, uint32_t crtcs_in) int count_in, count_out; uint32_t crtcs_out = 0; - if (!file_priv || !file_priv->master || !file_priv->master->lessor) + if (!file_priv) return crtcs_in; - master = file_priv->master; + master = drm_file_get_master(file_priv); + if (!master) + return crtcs_in; + if (!master->lessor) { + crtcs_out = crtcs_in; + goto out; + } dev = master->dev; count_in = count_out = 0; @@ -176,6 +200,9 @@ uint32_t drm_lease_filter_crtcs(struct drm_file *file_priv, uint32_t crtcs_in) count_in++; } mutex_unlock(&master->dev->mode_config.idr_mutex); + +out: + drm_master_put(&master); return crtcs_out; } @@ -489,7 +516,7 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, size_t object_count; int ret = 0; struct idr leases; - struct drm_master *lessor = lessor_priv->master; + struct drm_master *lessor; struct drm_master *lessee = NULL; struct file *lessee_file = NULL; struct file *lessor_file = lessor_priv->filp; @@ -501,12 +528,6 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EOPNOTSUPP; - /* Do not allow sub-leases */ - if (lessor->lessor) { - DRM_DEBUG_LEASE("recursive leasing not allowed\n"); - return -EINVAL; - } - /* need some objects */ if (cl->object_count == 0) { DRM_DEBUG_LEASE("no objects in lease\n"); @@ -518,12 +539,22 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, return -EINVAL; } + lessor = drm_file_get_master(lessor_priv); + /* Do not allow sub-leases */ + if (lessor->lessor) { + DRM_DEBUG_LEASE("recursive leasing not allowed\n"); + ret = -EINVAL; + goto out_lessor; + } + object_count = cl->object_count; object_ids = memdup_user(u64_to_user_ptr(cl->object_ids), array_size(object_count, sizeof(__u32))); - if (IS_ERR(object_ids)) - return PTR_ERR(object_ids); + if (IS_ERR(object_ids)) { + ret = PTR_ERR(object_ids); + goto out_lessor; + } idr_init(&leases); @@ -534,14 +565,15 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, if (ret) { DRM_DEBUG_LEASE("lease object lookup failed: %i\n", ret); idr_destroy(&leases); - return ret; + goto out_lessor; } /* Allocate a file descriptor for the lease */ fd = get_unused_fd_flags(cl->flags & (O_CLOEXEC | O_NONBLOCK)); if (fd < 0) { idr_destroy(&leases); - return fd; + ret = fd; + goto out_lessor; } DRM_DEBUG_LEASE("Creating lease\n"); @@ -577,6 +609,7 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, /* Hook up the fd */ fd_install(fd, lessee_file); + drm_master_put(&lessor); DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl succeeded\n"); return 0; @@ -586,6 +619,8 @@ out_lessee: out_leases: put_unused_fd(fd); +out_lessor: + drm_master_put(&lessor); DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl failed: %d\n", ret); return ret; } @@ -608,7 +643,7 @@ int drm_mode_list_lessees_ioctl(struct drm_device *dev, struct drm_mode_list_lessees *arg = data; __u32 __user *lessee_ids = (__u32 __user *) (uintptr_t) (arg->lessees_ptr); __u32 count_lessees = arg->count_lessees; - struct drm_master *lessor = lessor_priv->master, *lessee; + struct drm_master *lessor, *lessee; int count; int ret = 0; @@ -619,6 +654,7 @@ int drm_mode_list_lessees_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EOPNOTSUPP; + lessor = drm_file_get_master(lessor_priv); DRM_DEBUG_LEASE("List lessees for %d\n", lessor->lessee_id); mutex_lock(&dev->mode_config.idr_mutex); @@ -642,6 +678,7 @@ int drm_mode_list_lessees_ioctl(struct drm_device *dev, arg->count_lessees = count; mutex_unlock(&dev->mode_config.idr_mutex); + drm_master_put(&lessor); return ret; } @@ -661,7 +698,7 @@ int drm_mode_get_lease_ioctl(struct drm_device *dev, struct drm_mode_get_lease *arg = data; __u32 __user *object_ids = (__u32 __user *) (uintptr_t) (arg->objects_ptr); __u32 count_objects = arg->count_objects; - struct drm_master *lessee = lessee_priv->master; + struct drm_master *lessee; struct idr *object_idr; int count; void *entry; @@ -675,6 +712,7 @@ int drm_mode_get_lease_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EOPNOTSUPP; + lessee = drm_file_get_master(lessee_priv); DRM_DEBUG_LEASE("get lease for %d\n", lessee->lessee_id); mutex_lock(&dev->mode_config.idr_mutex); @@ -702,6 +740,7 @@ int drm_mode_get_lease_ioctl(struct drm_device *dev, arg->count_objects = count; mutex_unlock(&dev->mode_config.idr_mutex); + drm_master_put(&lessee); return ret; } @@ -720,7 +759,7 @@ int drm_mode_revoke_lease_ioctl(struct drm_device *dev, void *data, struct drm_file *lessor_priv) { struct drm_mode_revoke_lease *arg = data; - struct drm_master *lessor = lessor_priv->master; + struct drm_master *lessor; struct drm_master *lessee; int ret = 0; @@ -730,6 +769,7 @@ int drm_mode_revoke_lease_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EOPNOTSUPP; + lessor = drm_file_get_master(lessor_priv); mutex_lock(&dev->mode_config.idr_mutex); lessee = _drm_find_lessee(lessor, arg->lessee_id); @@ -750,6 +790,7 @@ int drm_mode_revoke_lease_ioctl(struct drm_device *dev, fail: mutex_unlock(&dev->mode_config.idr_mutex); + drm_master_put(&lessor); return ret; } diff --git a/drivers/gpu/drm/i915/display/intel_vga.c b/drivers/gpu/drm/i915/display/intel_vga.c index 3385b45ecd4b..fa779f7ea415 100644 --- a/drivers/gpu/drm/i915/display/intel_vga.c +++ b/drivers/gpu/drm/i915/display/intel_vga.c @@ -124,9 +124,9 @@ intel_vga_set_state(struct drm_i915_private *i915, bool enable_decode) } static unsigned int -intel_vga_set_decode(void *cookie, bool enable_decode) +intel_vga_set_decode(struct pci_dev *pdev, bool enable_decode) { - struct drm_i915_private *i915 = cookie; + struct drm_i915_private *i915 = pdev_to_i915(pdev); intel_vga_set_state(i915, enable_decode); @@ -139,6 +139,7 @@ intel_vga_set_decode(void *cookie, bool enable_decode) int intel_vga_register(struct drm_i915_private *i915) { + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); int ret; @@ -150,7 +151,7 @@ int intel_vga_register(struct drm_i915_private *i915) * then we do not take part in VGA arbitration and the * vga_client_register() fails with -ENODEV. */ - ret = vga_client_register(pdev, i915, NULL, intel_vga_set_decode); + ret = vga_client_register(pdev, intel_vga_set_decode); if (ret && ret != -ENODEV) return ret; @@ -161,5 +162,5 @@ void intel_vga_unregister(struct drm_i915_private *i915) { struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - vga_client_register(pdev, NULL, NULL, NULL); + vga_client_unregister(pdev); } diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index c296472164d9..857ed070b21b 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -33,7 +33,6 @@ #include <drm/drm_fourcc.h> #include <drm/drm_gem_atomic_helper.h> #include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_irq.h> #include <drm/drm_managed.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> @@ -799,8 +798,6 @@ static const struct drm_driver ingenic_drm_driver_data = { .fops = &ingenic_drm_fops, .gem_create_object = ingenic_drm_gem_create_object, DRM_GEM_CMA_DRIVER_OPS, - - .irq_handler = ingenic_drm_irq_handler, }; static const struct drm_plane_funcs ingenic_drm_primary_plane_funcs = { @@ -1098,7 +1095,7 @@ static int ingenic_drm_bind(struct device *dev, bool has_components) encoder->possible_clones = clone_mask; } - ret = drm_irq_install(drm, irq); + ret = devm_request_irq(dev, irq, ingenic_drm_irq_handler, 0, drm->driver->name, drm); if (ret) { dev_err(dev, "Unable to install IRQ handler\n"); return ret; diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c index 7c4b374b3eca..60cd8c0463df 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c @@ -11,9 +11,9 @@ #include "nouveau_vga.h" static unsigned int -nouveau_vga_set_decode(void *priv, bool state) +nouveau_vga_set_decode(struct pci_dev *pdev, bool state) { - struct nouveau_drm *drm = nouveau_drm(priv); + struct nouveau_drm *drm = nouveau_drm(pci_get_drvdata(pdev)); struct nvif_object *device = &drm->client.device.object; if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE && @@ -94,7 +94,7 @@ nouveau_vga_init(struct nouveau_drm *drm) return; pdev = to_pci_dev(dev->dev); - vga_client_register(pdev, dev, NULL, nouveau_vga_set_decode); + vga_client_register(pdev, nouveau_vga_set_decode); /* don't register Thunderbolt eGPU with vga_switcheroo */ if (pci_is_thunderbolt_attached(pdev)) @@ -118,7 +118,7 @@ nouveau_vga_fini(struct nouveau_drm *drm) return; pdev = to_pci_dev(dev->dev); - vga_client_register(pdev, NULL, NULL, NULL); + vga_client_unregister(pdev); if (pci_is_thunderbolt_attached(pdev)) return; diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index bfc6c23b2509..6b3eb041182c 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -574,6 +574,16 @@ config DRM_PANEL_VISIONOX_RM69299 Say Y here if you want to enable support for Visionox RM69299 DSI Video Mode panel. +config DRM_PANEL_WIDECHIPS_WS2401 + tristate "Widechips WS2401 DPI panel driver" + depends on SPI && GPIOLIB + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DBI + help + Say Y here if you want to enable support for the Widechips WS2401 DPI + 480x800 display controller used in panels such as Samsung LMS380KF01. + This display is used in the Samsung Galaxy Ace 2 GT-I8160 (Codina). + config DRM_PANEL_XINPENG_XPP055C272 tristate "Xinpeng XPP055C272 panel driver" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 1b865e8ea7c9..08debae9b314 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -60,4 +60,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o +obj-$(CONFIG_DRM_PANEL_WIDECHIPS_WS2401) += panel-widechips-ws2401.o obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o diff --git a/drivers/gpu/drm/panel/panel-widechips-ws2401.c b/drivers/gpu/drm/panel/panel-widechips-ws2401.c new file mode 100644 index 000000000000..8bc976f54b80 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-widechips-ws2401.c @@ -0,0 +1,441 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Panel driver for the WideChips WS2401 480x800 DPI RGB panel, used in + * the Samsung Mobile Display (SMD) LMS380KF01. + * Found in the Samsung Galaxy Ace 2 GT-I8160 mobile phone. + * Linus Walleij <linus.walleij@linaro.org> + * Inspired by code and know-how in the vendor driver by Gareth Phillips. + */ +#include <drm/drm_mipi_dbi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/media-bus-format.h> +#include <linux/module.h> +#include <linux/regulator/consumer.h> +#include <linux/spi/spi.h> + +#include <video/mipi_display.h> + +#define WS2401_RESCTL 0xb8 /* Resolution select control */ +#define WS2401_PSMPS 0xbd /* SMPS positive control */ +#define WS2401_NSMPS 0xbe /* SMPS negative control */ +#define WS2401_SMPS 0xbf +#define WS2401_BCMODE 0xc1 /* Backlight control mode */ +#define WS2401_WRBLCTL 0xc3 /* Backlight control */ +#define WS2401_WRDISBV 0xc4 /* Write manual brightness */ +#define WS2401_WRCTRLD 0xc6 /* Write BL control */ +#define WS2401_WRMIE 0xc7 /* Write MIE mode */ +#define WS2401_READ_ID1 0xda /* Read panel ID 1 */ +#define WS2401_READ_ID2 0xdb /* Read panel ID 2 */ +#define WS2401_READ_ID3 0xdc /* Read panel ID 3 */ +#define WS2401_GAMMA_R1 0xe7 /* Gamma red 1 */ +#define WS2401_GAMMA_G1 0xe8 /* Gamma green 1 */ +#define WS2401_GAMMA_B1 0xe9 /* Gamma blue 1 */ +#define WS2401_GAMMA_R2 0xea /* Gamma red 2 */ +#define WS2401_GAMMA_G2 0xeb /* Gamma green 2 */ +#define WS2401_GAMMA_B2 0xec /* Gamma blue 2 */ +#define WS2401_PASSWD1 0xf0 /* Password command for level 2 */ +#define WS2401_DISCTL 0xf2 /* Display control */ +#define WS2401_PWRCTL 0xf3 /* Power control */ +#define WS2401_VCOMCTL 0xf4 /* VCOM control */ +#define WS2401_SRCCTL 0xf5 /* Source control */ +#define WS2401_PANELCTL 0xf6 /* Panel control */ + +static const u8 ws2401_dbi_read_commands[] = { + WS2401_READ_ID1, + WS2401_READ_ID2, + WS2401_READ_ID3, + 0, /* sentinel */ +}; + +/** + * struct ws2401 - state container for a panel controlled by the WS2401 + * controller + */ +struct ws2401 { + /** @dev: the container device */ + struct device *dev; + /** @dbi: the DBI bus abstraction handle */ + struct mipi_dbi dbi; + /** @panel: the DRM panel instance for this device */ + struct drm_panel panel; + /** @width: the width of this panel in mm */ + u32 width; + /** @height: the height of this panel in mm */ + u32 height; + /** @reset: reset GPIO line */ + struct gpio_desc *reset; + /** @regulators: VCCIO and VIO supply regulators */ + struct regulator_bulk_data regulators[2]; + /** @internal_bl: If using internal backlight */ + bool internal_bl; +}; + +static const struct drm_display_mode lms380kf01_480_800_mode = { + /* + * The vendor driver states that the "SMD panel" has a clock + * frequency of 49920000 Hz / 2 = 24960000 Hz. + */ + .clock = 24960, + .hdisplay = 480, + .hsync_start = 480 + 8, + .hsync_end = 480 + 8 + 10, + .htotal = 480 + 8 + 10 + 8, + .vdisplay = 800, + .vsync_start = 800 + 8, + .vsync_end = 800 + 8 + 2, + .vtotal = 800 + 8 + 2 + 18, + .width_mm = 50, + .height_mm = 84, + .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, +}; + +static inline struct ws2401 *to_ws2401(struct drm_panel *panel) +{ + return container_of(panel, struct ws2401, panel); +} + +static void ws2401_read_mtp_id(struct ws2401 *ws) +{ + struct mipi_dbi *dbi = &ws->dbi; + u8 id1, id2, id3; + int ret; + + ret = mipi_dbi_command_read(dbi, WS2401_READ_ID1, &id1); + if (ret) { + dev_err(ws->dev, "unable to read MTP ID 1\n"); + return; + } + ret = mipi_dbi_command_read(dbi, WS2401_READ_ID2, &id2); + if (ret) { + dev_err(ws->dev, "unable to read MTP ID 2\n"); + return; + } + ret = mipi_dbi_command_read(dbi, WS2401_READ_ID3, &id3); + if (ret) { + dev_err(ws->dev, "unable to read MTP ID 3\n"); + return; + } + dev_info(ws->dev, "MTP ID: %02x %02x %02x\n", id1, id2, id3); +} + +static int ws2401_power_on(struct ws2401 *ws) +{ + struct mipi_dbi *dbi = &ws->dbi; + int ret; + + /* Power up */ + ret = regulator_bulk_enable(ARRAY_SIZE(ws->regulators), + ws->regulators); + if (ret) { + dev_err(ws->dev, "failed to enable regulators: %d\n", ret); + return ret; + } + msleep(10); + + /* Assert reset >=1 ms */ + gpiod_set_value_cansleep(ws->reset, 1); + usleep_range(1000, 5000); + /* De-assert reset */ + gpiod_set_value_cansleep(ws->reset, 0); + /* Wait >= 10 ms */ + msleep(10); + dev_dbg(ws->dev, "de-asserted RESET\n"); + + /* + * Exit sleep mode and initialize display - some hammering is + * necessary. + */ + mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); + mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); + msleep(50); + + /* Magic to unlock level 2 control of the display */ + mipi_dbi_command(dbi, WS2401_PASSWD1, 0x5a, 0x5a); + /* Configure resolution to 480RGBx800 */ + mipi_dbi_command(dbi, WS2401_RESCTL, 0x12); + /* Set addressing mode Flip V(d0), Flip H(d1) RGB/BGR(d3) */ + mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, 0x01); + /* Set pixel format: 24 bpp */ + mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, 0x70); + mipi_dbi_command(dbi, WS2401_SMPS, 0x00, 0x0f); + mipi_dbi_command(dbi, WS2401_PSMPS, 0x06, 0x03, /* DDVDH: 4.6v */ + 0x7e, 0x03, 0x12, 0x37); + mipi_dbi_command(dbi, WS2401_NSMPS, 0x06, 0x03, /* DDVDH: -4.6v */ + 0x7e, 0x02, 0x15, 0x37); + mipi_dbi_command(dbi, WS2401_SMPS, 0x02, 0x0f); + mipi_dbi_command(dbi, WS2401_PWRCTL, 0x10, 0xA9, 0x00, 0x01, 0x44, + 0xb4, /* VGH:16.1v, VGL:-13.8v */ + 0x50, /* GREFP:4.2v (default) */ + 0x50, /* GREFN:-4.2v (default) */ + 0x00, + 0x44); /* VOUTL:-10v (default) */ + mipi_dbi_command(dbi, WS2401_DISCTL, 0x01, 0x00, 0x00, 0x00, 0x14, + 0x16); + mipi_dbi_command(dbi, WS2401_VCOMCTL, 0x30, 0x53, 0x53); + mipi_dbi_command(dbi, WS2401_SRCCTL, 0x03, 0x0C, 0x00, 0x00, 0x00, + 0x01, /* 2 dot inversion */ + 0x01, 0x06, 0x03); + mipi_dbi_command(dbi, WS2401_PANELCTL, 0x14, 0x00, 0x80, 0x00); + mipi_dbi_command(dbi, WS2401_WRMIE, 0x01); + + /* Set up gamma, probably these are P-gamma and N-gamma for each color */ + mipi_dbi_command(dbi, WS2401_GAMMA_R1, 0x00, + 0x5b, 0x42, 0x41, 0x3f, 0x42, 0x3d, 0x38, 0x2e, + 0x2b, 0x2a, 0x27, 0x22, 0x27, 0x0f, 0x00, 0x00); + mipi_dbi_command(dbi, WS2401_GAMMA_R2, 0x00, + 0x5b, 0x42, 0x41, 0x3f, 0x42, 0x3d, 0x38, 0x2e, + 0x2b, 0x2a, 0x27, 0x22, 0x27, 0x0f, 0x00, 0x00); + mipi_dbi_command(dbi, WS2401_GAMMA_G1, 0x00, + 0x59, 0x40, 0x3f, 0x3e, 0x41, 0x3d, 0x39, 0x2f, + 0x2c, 0x2b, 0x29, 0x25, 0x29, 0x19, 0x08, 0x00); + mipi_dbi_command(dbi, WS2401_GAMMA_G2, 0x00, + 0x59, 0x40, 0x3f, 0x3e, 0x41, 0x3d, 0x39, 0x2f, + 0x2c, 0x2b, 0x29, 0x25, 0x29, 0x19, 0x08, 0x00); + mipi_dbi_command(dbi, WS2401_GAMMA_B1, 0x00, + 0x57, 0x3b, 0x3a, 0x3b, 0x3f, 0x3b, 0x38, 0x27, + 0x38, 0x2a, 0x26, 0x22, 0x34, 0x0c, 0x09, 0x00); + mipi_dbi_command(dbi, WS2401_GAMMA_B2, 0x00, + 0x57, 0x3b, 0x3a, 0x3b, 0x3f, 0x3b, 0x38, 0x27, + 0x38, 0x2a, 0x26, 0x22, 0x34, 0x0c, 0x09, 0x00); + + if (ws->internal_bl) { + mipi_dbi_command(dbi, WS2401_WRCTRLD, 0x2c); + } else { + mipi_dbi_command(dbi, WS2401_WRCTRLD, 0x00); + /* + * When not using internal backlight we do not need any further + * L2 accesses to the panel so we close the door on our way out. + * Otherwise we need to leave the L2 door open. + */ + mipi_dbi_command(dbi, WS2401_PASSWD1, 0xa5, 0xa5); + } + + return 0; +} + +static int ws2401_power_off(struct ws2401 *ws) +{ + /* Go into RESET and disable regulators */ + gpiod_set_value_cansleep(ws->reset, 1); + return regulator_bulk_disable(ARRAY_SIZE(ws->regulators), + ws->regulators); +} + +static int ws2401_unprepare(struct drm_panel *panel) +{ + struct ws2401 *ws = to_ws2401(panel); + struct mipi_dbi *dbi = &ws->dbi; + + /* Make sure we disable backlight, if any */ + if (ws->internal_bl) + mipi_dbi_command(dbi, WS2401_WRCTRLD, 0x00); + mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE); + msleep(120); + return ws2401_power_off(to_ws2401(panel)); +} + +static int ws2401_disable(struct drm_panel *panel) +{ + struct ws2401 *ws = to_ws2401(panel); + struct mipi_dbi *dbi = &ws->dbi; + + mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF); + msleep(25); + + return 0; +} + +static int ws2401_prepare(struct drm_panel *panel) +{ + return ws2401_power_on(to_ws2401(panel)); +} + +static int ws2401_enable(struct drm_panel *panel) +{ + struct ws2401 *ws = to_ws2401(panel); + struct mipi_dbi *dbi = &ws->dbi; + + mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON); + + return 0; +} + +/** + * ws2401_get_modes() - return the mode + * @panel: the panel to get the mode for + * @connector: reference to the central DRM connector control structure + */ +static int ws2401_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct ws2401 *ws = to_ws2401(panel); + struct drm_display_mode *mode; + static const u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24; + + /* + * We just support the LMS380KF01 so far, if we implement more panels + * this mode, the following connector display_info settings and + * probably the custom DCS sequences needs to selected based on what + * the target panel needs. + */ + mode = drm_mode_duplicate(connector->dev, &lms380kf01_480_800_mode); + if (!mode) { + dev_err(ws->dev, "failed to add mode\n"); + return -ENOMEM; + } + + connector->display_info.bpc = 8; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + connector->display_info.bus_flags = + DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE; + drm_display_info_set_bus_formats(&connector->display_info, + &bus_format, 1); + + drm_mode_set_name(mode); + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs ws2401_drm_funcs = { + .disable = ws2401_disable, + .unprepare = ws2401_unprepare, + .prepare = ws2401_prepare, + .enable = ws2401_enable, + .get_modes = ws2401_get_modes, +}; + +static int ws2401_set_brightness(struct backlight_device *bl) +{ + struct ws2401 *ws = bl_get_data(bl); + struct mipi_dbi *dbi = &ws->dbi; + u8 brightness = backlight_get_brightness(bl); + + if (backlight_is_blank(bl)) { + mipi_dbi_command(dbi, WS2401_WRCTRLD, 0x00); + } else { + mipi_dbi_command(dbi, WS2401_WRCTRLD, 0x2c); + mipi_dbi_command(dbi, WS2401_WRDISBV, brightness); + } + + return 0; +} + +static const struct backlight_ops ws2401_bl_ops = { + .update_status = ws2401_set_brightness, +}; + +static const struct backlight_properties ws2401_bl_props = { + .type = BACKLIGHT_PLATFORM, + .brightness = 120, + .max_brightness = U8_MAX, +}; + +static int ws2401_probe(struct spi_device *spi) +{ + struct device *dev = &spi->dev; + struct ws2401 *ws; + int ret; + + ws = devm_kzalloc(dev, sizeof(*ws), GFP_KERNEL); + if (!ws) + return -ENOMEM; + ws->dev = dev; + + /* + * VCI is the analog voltage supply + * VCCIO is the digital I/O voltage supply + */ + ws->regulators[0].supply = "vci"; + ws->regulators[1].supply = "vccio"; + ret = devm_regulator_bulk_get(dev, + ARRAY_SIZE(ws->regulators), + ws->regulators); + if (ret) + return dev_err_probe(dev, ret, "failed to get regulators\n"); + + ws->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ws->reset)) { + ret = PTR_ERR(ws->reset); + return dev_err_probe(dev, ret, "no RESET GPIO\n"); + } + + ret = mipi_dbi_spi_init(spi, &ws->dbi, NULL); + if (ret) + return dev_err_probe(dev, ret, "MIPI DBI init failed\n"); + ws->dbi.read_commands = ws2401_dbi_read_commands; + + ws2401_power_on(ws); + ws2401_read_mtp_id(ws); + ws2401_power_off(ws); + + drm_panel_init(&ws->panel, dev, &ws2401_drm_funcs, + DRM_MODE_CONNECTOR_DPI); + + ret = drm_panel_of_backlight(&ws->panel); + if (ret) + return dev_err_probe(dev, ret, + "failed to get external backlight device\n"); + + if (!ws->panel.backlight) { + dev_dbg(dev, "no external backlight, using internal backlight\n"); + ws->panel.backlight = + devm_backlight_device_register(dev, "ws2401", dev, ws, + &ws2401_bl_ops, &ws2401_bl_props); + if (IS_ERR(ws->panel.backlight)) + return dev_err_probe(dev, PTR_ERR(ws->panel.backlight), + "failed to register backlight device\n"); + } else { + dev_dbg(dev, "using external backlight\n"); + } + + spi_set_drvdata(spi, ws); + + drm_panel_add(&ws->panel); + dev_dbg(dev, "added panel\n"); + + return 0; +} + +static int ws2401_remove(struct spi_device *spi) +{ + struct ws2401 *ws = spi_get_drvdata(spi); + + drm_panel_remove(&ws->panel); + return 0; +} + +/* + * Samsung LMS380KF01 is the one instance of this display controller that we + * know about, but if more are found, the controller can be parameterized + * here and used for other configurations. + */ +static const struct of_device_id ws2401_match[] = { + { .compatible = "samsung,lms380kf01", }, + {}, +}; +MODULE_DEVICE_TABLE(of, ws2401_match); + +static struct spi_driver ws2401_driver = { + .probe = ws2401_probe, + .remove = ws2401_remove, + .driver = { + .name = "ws2401-panel", + .of_match_table = ws2401_match, + }, +}; +module_spi_driver(ws2401_driver); + +MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>"); +MODULE_DESCRIPTION("Samsung WS2401 panel driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 46eea01950cb..cec03238e14d 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1067,15 +1067,16 @@ void radeon_combios_fini(struct radeon_device *rdev) /** * radeon_vga_set_decode - enable/disable vga decode * - * @cookie: radeon_device pointer + * @pdev: PCI device * @state: enable/disable vga decode * * Enable/disable vga decode (all asics). * Returns VGA resource flags. */ -static unsigned int radeon_vga_set_decode(void *cookie, bool state) +static unsigned int radeon_vga_set_decode(struct pci_dev *pdev, bool state) { - struct radeon_device *rdev = cookie; + struct drm_device *dev = pci_get_drvdata(pdev); + struct radeon_device *rdev = dev->dev_private; radeon_vga_set_state(rdev, state); if (state) return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM | @@ -1434,7 +1435,7 @@ int radeon_device_init(struct radeon_device *rdev, /* if we have > 1 VGA cards, then disable the radeon VGA resources */ /* this will fail for cards that aren't VGA class devices, just * ignore it */ - vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode); + vga_client_register(rdev->pdev, radeon_vga_set_decode); if (rdev->flags & RADEON_IS_PX) runtime = true; @@ -1530,7 +1531,7 @@ void radeon_device_fini(struct radeon_device *rdev) vga_switcheroo_unregister_client(rdev->pdev); if (rdev->flags & RADEON_IS_PX) vga_switcheroo_fini_domain_pm_ops(rdev->dev); - vga_client_register(rdev->pdev, NULL, NULL, NULL); + vga_client_unregister(rdev->pdev); if (rdev->rio_mem) pci_iounmap(rdev->pdev, rdev->rio_mem); rdev->rio_mem = NULL; diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index 8399d337589d..32cb41b2202f 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -309,14 +309,23 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode, return 0; } +#define DSI_PHY_DELAY(fp, vp, mbps) DIV_ROUND_UP((fp) * (mbps) + 1000 * (vp), 8000) + static int dw_mipi_dsi_phy_get_timing(void *priv_data, unsigned int lane_mbps, struct dw_mipi_dsi_dphy_timing *timing) { - timing->clk_hs2lp = 0x40; - timing->clk_lp2hs = 0x40; - timing->data_hs2lp = 0x40; - timing->data_lp2hs = 0x40; + /* + * From STM32MP157 datasheet, valid for STM32F469, STM32F7x9, STM32H747 + * phy_clkhs2lp_time = (272+136*UI)/(8*UI) + * phy_clklp2hs_time = (512+40*UI)/(8*UI) + * phy_hs2lp_time = (192+64*UI)/(8*UI) + * phy_lp2hs_time = (256+32*UI)/(8*UI) + */ + timing->clk_hs2lp = DSI_PHY_DELAY(272, 136, lane_mbps); + timing->clk_lp2hs = DSI_PHY_DELAY(512, 40, lane_mbps); + timing->data_hs2lp = DSI_PHY_DELAY(192, 64, lane_mbps); + timing->data_lp2hs = DSI_PHY_DELAY(256, 32, lane_mbps); return 0; } diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 1f9392fb58e1..195de30eb90c 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1121,8 +1121,9 @@ static int ltdc_encoder_init(struct drm_device *ddev, struct drm_bridge *bridge) ret = drm_bridge_attach(encoder, bridge, NULL, 0); if (ret) { - drm_encoder_cleanup(encoder); - return -EINVAL; + if (ret != -EPROBE_DEFER) + drm_encoder_cleanup(encoder); + return ret; } DRM_DEBUG_DRIVER("Bridge encoder:%d created\n", encoder->base.id); @@ -1265,7 +1266,8 @@ int ltdc_load(struct drm_device *ddev) if (bridge) { ret = ltdc_encoder_init(ddev, bridge); if (ret) { - DRM_ERROR("init encoder endpoint %d\n", i); + if (ret != -EPROBE_DEFER) + DRM_ERROR("init encoder endpoint %d\n", i); goto err; } } diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig index 5593128eeff9..d31be274a2bd 100644 --- a/drivers/gpu/drm/tiny/Kconfig +++ b/drivers/gpu/drm/tiny/Kconfig @@ -64,8 +64,8 @@ config DRM_SIMPLEDRM buffer, size, and display format must be provided via device tree, UEFI, VESA, etc. - On x86 and compatible, you should also select CONFIG_X86_SYSFB to - use UEFI and VESA framebuffers. + On x86 BIOS or UEFI systems, you should also select SYSFB_SIMPLEFB + to use UEFI and VESA framebuffers. config TINYDRM_HX8357D tristate "DRM support for HX8357D display panels" diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c index a2cfecfa8556..73415fa9ae0f 100644 --- a/drivers/gpu/drm/tiny/bochs.c +++ b/drivers/gpu/drm/tiny/bochs.c @@ -648,7 +648,7 @@ static int bochs_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent if (IS_ERR(dev)) return PTR_ERR(dev); - ret = pci_enable_device(pdev); + ret = pcim_enable_device(pdev); if (ret) goto err_free_dev; diff --git a/drivers/gpu/drm/v3d/Makefile b/drivers/gpu/drm/v3d/Makefile index db4cfc155821..e8b314137020 100644 --- a/drivers/gpu/drm/v3d/Makefile +++ b/drivers/gpu/drm/v3d/Makefile @@ -9,6 +9,7 @@ v3d-y := \ v3d_gem.o \ v3d_irq.o \ v3d_mmu.o \ + v3d_perfmon.o \ v3d_trace_points.o \ v3d_sched.o diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c index 99e22beea90b..9403c3b36aca 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.c +++ b/drivers/gpu/drm/v3d/v3d_drv.c @@ -94,6 +94,9 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data, case DRM_V3D_PARAM_SUPPORTS_CACHE_FLUSH: args->value = 1; return 0; + case DRM_V3D_PARAM_SUPPORTS_PERFMON: + args->value = (v3d->ver >= 40); + return 0; default: DRM_DEBUG("Unknown parameter %d\n", args->param); return -EINVAL; @@ -121,6 +124,7 @@ v3d_open(struct drm_device *dev, struct drm_file *file) 1, NULL); } + v3d_perfmon_open_file(v3d_priv); file->driver_priv = v3d_priv; return 0; @@ -136,6 +140,7 @@ v3d_postclose(struct drm_device *dev, struct drm_file *file) drm_sched_entity_destroy(&v3d_priv->sched_entity[q]); } + v3d_perfmon_close_file(v3d_priv); kfree(v3d_priv); } @@ -156,6 +161,9 @@ static const struct drm_ioctl_desc v3d_drm_ioctls[] = { DRM_IOCTL_DEF_DRV(V3D_GET_BO_OFFSET, v3d_get_bo_offset_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(V3D_SUBMIT_TFU, v3d_submit_tfu_ioctl, DRM_RENDER_ALLOW | DRM_AUTH), DRM_IOCTL_DEF_DRV(V3D_SUBMIT_CSD, v3d_submit_csd_ioctl, DRM_RENDER_ALLOW | DRM_AUTH), + DRM_IOCTL_DEF_DRV(V3D_PERFMON_CREATE, v3d_perfmon_create_ioctl, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(V3D_PERFMON_DESTROY, v3d_perfmon_destroy_ioctl, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(V3D_PERFMON_GET_VALUES, v3d_perfmon_get_values_ioctl, DRM_RENDER_ALLOW), }; static const struct drm_driver v3d_drm_driver = { diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 8a390738d65b..270134779073 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -37,6 +37,40 @@ struct v3d_queue_state { u64 emit_seqno; }; +/* Performance monitor object. The perform lifetime is controlled by userspace + * using perfmon related ioctls. A perfmon can be attached to a submit_cl + * request, and when this is the case, HW perf counters will be activated just + * before the submit_cl is submitted to the GPU and disabled when the job is + * done. This way, only events related to a specific job will be counted. + */ +struct v3d_perfmon { + /* Tracks the number of users of the perfmon, when this counter reaches + * zero the perfmon is destroyed. + */ + refcount_t refcnt; + + /* Protects perfmon stop, as it can be invoked from multiple places. */ + struct mutex lock; + + /* Number of counters activated in this perfmon instance + * (should be less than DRM_V3D_MAX_PERF_COUNTERS). + */ + u8 ncounters; + + /* Events counted by the HW perf counters. */ + u8 counters[DRM_V3D_MAX_PERF_COUNTERS]; + + /* Storage for counter values. Counters are incremented by the + * HW perf counter values every time the perfmon is attached + * to a GPU job. This way, perfmon users don't have to + * retrieve the results after each job if they want to track + * events covering several submissions. Note that counter + * values can't be reset, but you can fake a reset by + * destroying the perfmon and creating a new one. + */ + u64 values[]; +}; + struct v3d_dev { struct drm_device drm; @@ -89,6 +123,9 @@ struct v3d_dev { */ spinlock_t job_lock; + /* Used to track the active perfmon if any. */ + struct v3d_perfmon *active_perfmon; + /* Protects bo_stats */ struct mutex bo_lock; @@ -133,6 +170,11 @@ v3d_has_csd(struct v3d_dev *v3d) struct v3d_file_priv { struct v3d_dev *v3d; + struct { + struct idr idr; + struct mutex lock; + } perfmon; + struct drm_sched_entity sched_entity[V3D_MAX_QUEUES]; }; @@ -205,6 +247,11 @@ struct v3d_job { */ struct dma_fence *done_fence; + /* Pointer to a performance monitor object if the user requested it, + * NULL otherwise. + */ + struct v3d_perfmon *perfmon; + /* Callback for the freeing of the job on refcount going to 0. */ void (*free)(struct kref *ref); }; @@ -353,3 +400,19 @@ void v3d_mmu_remove_ptes(struct v3d_bo *bo); /* v3d_sched.c */ int v3d_sched_init(struct v3d_dev *v3d); void v3d_sched_fini(struct v3d_dev *v3d); + +/* v3d_perfmon.c */ +void v3d_perfmon_get(struct v3d_perfmon *perfmon); +void v3d_perfmon_put(struct v3d_perfmon *perfmon); +void v3d_perfmon_start(struct v3d_dev *v3d, struct v3d_perfmon *perfmon); +void v3d_perfmon_stop(struct v3d_dev *v3d, struct v3d_perfmon *perfmon, + bool capture); +struct v3d_perfmon *v3d_perfmon_find(struct v3d_file_priv *v3d_priv, int id); +void v3d_perfmon_open_file(struct v3d_file_priv *v3d_priv); +void v3d_perfmon_close_file(struct v3d_file_priv *v3d_priv); +int v3d_perfmon_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_get_values_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 4eb354226972..5689da118197 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -126,6 +126,8 @@ v3d_reset(struct v3d_dev *v3d) v3d_mmu_set_page_table(v3d); v3d_irq_reset(v3d); + v3d_perfmon_stop(v3d, v3d->active_perfmon, false); + trace_v3d_reset_end(dev); } @@ -375,6 +377,9 @@ v3d_job_free(struct kref *ref) pm_runtime_mark_last_busy(job->v3d->drm.dev); pm_runtime_put_autosuspend(job->v3d->drm.dev); + if (job->perfmon) + v3d_perfmon_put(job->perfmon); + kfree(job); } @@ -539,6 +544,9 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data, trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end); + if (args->pad != 0) + return -EINVAL; + if (args->flags != 0 && args->flags != DRM_V3D_SUBMIT_CL_FLUSH_CACHE) { DRM_INFO("invalid flags: %d\n", args->flags); @@ -611,8 +619,20 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data, if (ret) goto fail; + if (args->perfmon_id) { + render->base.perfmon = v3d_perfmon_find(v3d_priv, + args->perfmon_id); + + if (!render->base.perfmon) { + ret = -ENOENT; + goto fail; + } + } + mutex_lock(&v3d->sched_lock); if (bin) { + bin->base.perfmon = render->base.perfmon; + v3d_perfmon_get(bin->base.perfmon); ret = v3d_push_job(v3d_priv, &bin->base, V3D_BIN); if (ret) goto fail_unreserve; @@ -633,6 +653,8 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data, ret = drm_gem_fence_array_add(&clean_job->deps, render_fence); if (ret) goto fail_unreserve; + clean_job->perfmon = render->base.perfmon; + v3d_perfmon_get(clean_job->perfmon); ret = v3d_push_job(v3d_priv, clean_job, V3D_CACHE_CLEAN); if (ret) goto fail_unreserve; @@ -827,6 +849,15 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data, if (ret) goto fail; + if (args->perfmon_id) { + job->base.perfmon = v3d_perfmon_find(v3d_priv, + args->perfmon_id); + if (!job->base.perfmon) { + ret = -ENOENT; + goto fail; + } + } + mutex_lock(&v3d->sched_lock); ret = v3d_push_job(v3d_priv, &job->base, V3D_CSD); if (ret) diff --git a/drivers/gpu/drm/v3d/v3d_perfmon.c b/drivers/gpu/drm/v3d/v3d_perfmon.c new file mode 100644 index 000000000000..0288ef063513 --- /dev/null +++ b/drivers/gpu/drm/v3d/v3d_perfmon.c @@ -0,0 +1,213 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2021 Raspberry Pi + */ + +#include "v3d_drv.h" +#include "v3d_regs.h" + +#define V3D_PERFMONID_MIN 1 +#define V3D_PERFMONID_MAX U32_MAX + +void v3d_perfmon_get(struct v3d_perfmon *perfmon) +{ + if (perfmon) + refcount_inc(&perfmon->refcnt); +} + +void v3d_perfmon_put(struct v3d_perfmon *perfmon) +{ + if (perfmon && refcount_dec_and_test(&perfmon->refcnt)) + kfree(perfmon); +} + +void v3d_perfmon_start(struct v3d_dev *v3d, struct v3d_perfmon *perfmon) +{ + unsigned int i; + u32 mask; + u8 ncounters = perfmon->ncounters; + + if (WARN_ON_ONCE(!perfmon || v3d->active_perfmon)) + return; + + mask = GENMASK(ncounters - 1, 0); + + for (i = 0; i < ncounters; i++) { + u32 source = i / 4; + u32 channel = V3D_SET_FIELD(perfmon->counters[i], V3D_PCTR_S0); + + i++; + channel |= V3D_SET_FIELD(i < ncounters ? perfmon->counters[i] : 0, + V3D_PCTR_S1); + i++; + channel |= V3D_SET_FIELD(i < ncounters ? perfmon->counters[i] : 0, + V3D_PCTR_S2); + i++; + channel |= V3D_SET_FIELD(i < ncounters ? perfmon->counters[i] : 0, + V3D_PCTR_S3); + V3D_CORE_WRITE(0, V3D_V4_PCTR_0_SRC_X(source), channel); + } + + V3D_CORE_WRITE(0, V3D_V4_PCTR_0_CLR, mask); + V3D_CORE_WRITE(0, V3D_PCTR_0_OVERFLOW, mask); + V3D_CORE_WRITE(0, V3D_V4_PCTR_0_EN, mask); + + v3d->active_perfmon = perfmon; +} + +void v3d_perfmon_stop(struct v3d_dev *v3d, struct v3d_perfmon *perfmon, + bool capture) +{ + unsigned int i; + + if (!perfmon || !v3d->active_perfmon) + return; + + mutex_lock(&perfmon->lock); + if (perfmon != v3d->active_perfmon) { + mutex_unlock(&perfmon->lock); + return; + } + + if (capture) + for (i = 0; i < perfmon->ncounters; i++) + perfmon->values[i] += V3D_CORE_READ(0, V3D_PCTR_0_PCTRX(i)); + + V3D_CORE_WRITE(0, V3D_V4_PCTR_0_EN, 0); + + v3d->active_perfmon = NULL; + mutex_unlock(&perfmon->lock); +} + +struct v3d_perfmon *v3d_perfmon_find(struct v3d_file_priv *v3d_priv, int id) +{ + struct v3d_perfmon *perfmon; + + mutex_lock(&v3d_priv->perfmon.lock); + perfmon = idr_find(&v3d_priv->perfmon.idr, id); + v3d_perfmon_get(perfmon); + mutex_unlock(&v3d_priv->perfmon.lock); + + return perfmon; +} + +void v3d_perfmon_open_file(struct v3d_file_priv *v3d_priv) +{ + mutex_init(&v3d_priv->perfmon.lock); + idr_init(&v3d_priv->perfmon.idr); +} + +static int v3d_perfmon_idr_del(int id, void *elem, void *data) +{ + struct v3d_perfmon *perfmon = elem; + + v3d_perfmon_put(perfmon); + + return 0; +} + +void v3d_perfmon_close_file(struct v3d_file_priv *v3d_priv) +{ + mutex_lock(&v3d_priv->perfmon.lock); + idr_for_each(&v3d_priv->perfmon.idr, v3d_perfmon_idr_del, NULL); + idr_destroy(&v3d_priv->perfmon.idr); + mutex_unlock(&v3d_priv->perfmon.lock); +} + +int v3d_perfmon_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct v3d_file_priv *v3d_priv = file_priv->driver_priv; + struct drm_v3d_perfmon_create *req = data; + struct v3d_perfmon *perfmon; + unsigned int i; + int ret; + + /* Number of monitored counters cannot exceed HW limits. */ + if (req->ncounters > DRM_V3D_MAX_PERF_COUNTERS || + !req->ncounters) + return -EINVAL; + + /* Make sure all counters are valid. */ + for (i = 0; i < req->ncounters; i++) { + if (req->counters[i] >= V3D_PERFCNT_NUM) + return -EINVAL; + } + + perfmon = kzalloc(struct_size(perfmon, values, req->ncounters), + GFP_KERNEL); + if (!perfmon) + return -ENOMEM; + + for (i = 0; i < req->ncounters; i++) + perfmon->counters[i] = req->counters[i]; + + perfmon->ncounters = req->ncounters; + + refcount_set(&perfmon->refcnt, 1); + mutex_init(&perfmon->lock); + + mutex_lock(&v3d_priv->perfmon.lock); + ret = idr_alloc(&v3d_priv->perfmon.idr, perfmon, V3D_PERFMONID_MIN, + V3D_PERFMONID_MAX, GFP_KERNEL); + mutex_unlock(&v3d_priv->perfmon.lock); + + if (ret < 0) { + kfree(perfmon); + return ret; + } + + req->id = ret; + + return 0; +} + +int v3d_perfmon_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct v3d_file_priv *v3d_priv = file_priv->driver_priv; + struct drm_v3d_perfmon_destroy *req = data; + struct v3d_perfmon *perfmon; + + mutex_lock(&v3d_priv->perfmon.lock); + perfmon = idr_remove(&v3d_priv->perfmon.idr, req->id); + mutex_unlock(&v3d_priv->perfmon.lock); + + if (!perfmon) + return -EINVAL; + + v3d_perfmon_put(perfmon); + + return 0; +} + +int v3d_perfmon_get_values_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct v3d_dev *v3d = to_v3d_dev(dev); + struct v3d_file_priv *v3d_priv = file_priv->driver_priv; + struct drm_v3d_perfmon_get_values *req = data; + struct v3d_perfmon *perfmon; + int ret = 0; + + if (req->pad != 0) + return -EINVAL; + + mutex_lock(&v3d_priv->perfmon.lock); + perfmon = idr_find(&v3d_priv->perfmon.idr, req->id); + v3d_perfmon_get(perfmon); + mutex_unlock(&v3d_priv->perfmon.lock); + + if (!perfmon) + return -EINVAL; + + v3d_perfmon_stop(v3d, perfmon, true); + + if (copy_to_user(u64_to_user_ptr(req->values_ptr), perfmon->values, + perfmon->ncounters * sizeof(u64))) + ret = -EFAULT; + + v3d_perfmon_put(perfmon); + + return ret; +} diff --git a/drivers/gpu/drm/v3d/v3d_regs.h b/drivers/gpu/drm/v3d/v3d_regs.h index 9bcb57781d31..3663e0d6bf76 100644 --- a/drivers/gpu/drm/v3d/v3d_regs.h +++ b/drivers/gpu/drm/v3d/v3d_regs.h @@ -347,6 +347,8 @@ /* Each src reg muxes four counters each. */ #define V3D_V4_PCTR_0_SRC_0_3 0x00660 #define V3D_V4_PCTR_0_SRC_28_31 0x0067c +#define V3D_V4_PCTR_0_SRC_X(x) (V3D_V4_PCTR_0_SRC_0_3 + \ + 4 * (x)) # define V3D_PCTR_S0_MASK V3D_MASK(6, 0) # define V3D_PCTR_S0_SHIFT 0 # define V3D_PCTR_S1_MASK V3D_MASK(14, 8) diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c index a39bdd5cfc4f..dd7fcc36d726 100644 --- a/drivers/gpu/drm/v3d/v3d_sched.c +++ b/drivers/gpu/drm/v3d/v3d_sched.c @@ -63,6 +63,16 @@ v3d_job_free(struct drm_sched_job *sched_job) v3d_job_put(job); } +static void +v3d_switch_perfmon(struct v3d_dev *v3d, struct v3d_job *job) +{ + if (job->perfmon != v3d->active_perfmon) + v3d_perfmon_stop(v3d, v3d->active_perfmon, true); + + if (job->perfmon && v3d->active_perfmon != job->perfmon) + v3d_perfmon_start(v3d, job->perfmon); +} + /* * Returns the fences that the job depends on, one by one. * @@ -120,6 +130,8 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_cl(dev, false, to_v3d_fence(fence)->seqno, job->start, job->end); + v3d_switch_perfmon(v3d, &job->base); + /* Set the current and end address of the control list. * Writing the end register is what starts the job. */ @@ -169,6 +181,8 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_cl(dev, true, to_v3d_fence(fence)->seqno, job->start, job->end); + v3d_switch_perfmon(v3d, &job->base); + /* XXX: Set the QCFG */ /* Set the current and end address of the control list. @@ -240,6 +254,8 @@ v3d_csd_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_csd(dev, to_v3d_fence(fence)->seqno); + v3d_switch_perfmon(v3d, &job->base); + for (i = 1; i <= 6; i++) V3D_CORE_WRITE(0, V3D_CSD_QUEUED_CFG0 + 4 * i, job->args.cfg[i]); /* CFG0 write kicks off the job. */ diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 949fde433ea2..569930552957 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -72,10 +72,7 @@ struct vga_device { unsigned int io_norm_cnt; /* normal IO count */ unsigned int mem_norm_cnt; /* normal MEM count */ bool bridge_has_one_vga; - /* allow IRQ enable/disable hook */ - void *cookie; - void (*irq_set_state)(void *cookie, bool enable); - unsigned int (*set_vga_decode)(void *cookie, bool decode); + unsigned int (*set_decode)(struct pci_dev *pdev, bool decode); }; static LIST_HEAD(vga_list); @@ -218,13 +215,6 @@ int vga_remove_vgacon(struct pci_dev *pdev) #endif EXPORT_SYMBOL(vga_remove_vgacon); -static inline void vga_irq_set_state(struct vga_device *vgadev, bool state) -{ - if (vgadev->irq_set_state) - vgadev->irq_set_state(vgadev->cookie, state); -} - - /* If we don't ever use VGA arb we should avoid turning off anything anywhere due to old X servers getting confused about the boot device not being VGA */ @@ -284,12 +274,6 @@ static struct vga_device *__vga_tryget(struct vga_device *vgadev, if (vgadev == conflict) continue; - /* Check if the architecture allows a conflict between those - * 2 devices or if they are on separate domains - */ - if (!vga_conflicts(vgadev->pdev, conflict->pdev)) - continue; - /* We have a possible conflict. before we go further, we must * check if we sit on the same bus as the conflicting device. * if we don't, then we must tie both IO and MEM resources @@ -331,10 +315,8 @@ static struct vga_device *__vga_tryget(struct vga_device *vgadev, if ((match & conflict->decodes) & VGA_RSRC_LEGACY_IO) pci_bits |= PCI_COMMAND_IO; - if (pci_bits) { - vga_irq_set_state(conflict, false); + if (pci_bits) flags |= PCI_VGA_STATE_CHANGE_DECODES; - } } if (change_bridge) @@ -371,9 +353,6 @@ enable_them: pci_set_vga_state(vgadev->pdev, true, pci_bits, flags); - if (!vgadev->bridge_has_one_vga) - vga_irq_set_state(vgadev, true); - vgadev->owns |= wants; lock_them: vgadev->locks |= (rsrc & VGA_RSRC_LEGACY_MASK); @@ -826,7 +805,7 @@ static void __vga_set_legacy_decoding(struct pci_dev *pdev, goto bail; /* don't let userspace futz with kernel driver decodes */ - if (userspace && vgadev->set_vga_decode) + if (userspace && vgadev->set_decode) goto bail; /* update the device decodes + counter */ @@ -840,6 +819,17 @@ bail: spin_unlock_irqrestore(&vga_lock, flags); } +/** + * vga_set_legacy_decoding + * @pdev: pci device of the VGA card + * @decodes: bit mask of what legacy regions the card decodes + * + * Indicates to the arbiter if the card decodes legacy VGA IOs, legacy VGA + * Memory, both, or none. All cards default to both, the card driver (fbdev for + * example) should tell the arbiter if it has disabled legacy decoding, so the + * card can be left out of the arbitration process (and can be safe to take + * interrupts at any time. + */ void vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes) { __vga_set_legacy_decoding(pdev, decodes, false); @@ -849,17 +839,11 @@ EXPORT_SYMBOL(vga_set_legacy_decoding); /** * vga_client_register - register or unregister a VGA arbitration client * @pdev: pci device of the VGA client - * @cookie: client cookie to be used in callbacks - * @irq_set_state: irq state change callback - * @set_vga_decode: vga decode change callback + * @set_decode: vga decode change callback * * Clients have two callback mechanisms they can use. * - * @irq_set_state callback: If a client can't disable its GPUs VGA - * resources, then we need to be able to ask it to turn off its irqs when we - * turn off its mem and io decoding. - * - * @set_vga_decode callback: If a client can disable its GPU VGA resource, it + * @set_decode callback: If a client can disable its GPU VGA resource, it * will get a callback from this to set the encode/decode state. * * Rationale: we cannot disable VGA decode resources unconditionally some single @@ -872,15 +856,12 @@ EXPORT_SYMBOL(vga_set_legacy_decoding); * This function does not check whether a client for @pdev has been registered * already. * - * To unregister just call this function with @irq_set_state and @set_vga_decode - * both set to NULL for the same @pdev as originally used to register them. + * To unregister just call vga_client_unregister(). * * Returns: 0 on success, -1 on failure */ -int vga_client_register(struct pci_dev *pdev, void *cookie, - void (*irq_set_state)(void *cookie, bool state), - unsigned int (*set_vga_decode)(void *cookie, - bool decode)) +int vga_client_register(struct pci_dev *pdev, + unsigned int (*set_decode)(struct pci_dev *pdev, bool decode)) { int ret = -ENODEV; struct vga_device *vgadev; @@ -891,9 +872,7 @@ int vga_client_register(struct pci_dev *pdev, void *cookie, if (!vgadev) goto bail; - vgadev->irq_set_state = irq_set_state; - vgadev->set_vga_decode = set_vga_decode; - vgadev->cookie = cookie; + vgadev->set_decode = set_decode; ret = 0; bail: @@ -1403,9 +1382,9 @@ static void vga_arbiter_notify_clients(void) new_state = false; else new_state = true; - if (vgadev->set_vga_decode) { - new_decodes = vgadev->set_vga_decode(vgadev->cookie, - new_state); + if (vgadev->set_decode) { + new_decodes = vgadev->set_decode(vgadev->pdev, + new_state); vga_update_device_decodes(vgadev, new_decodes); } } diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 318864d52837..cf27df8048db 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -119,10 +119,9 @@ static bool vfio_pci_is_denylisted(struct pci_dev *pdev) * has no way to get to it and routing can be disabled externally at the * bridge. */ -static unsigned int vfio_pci_set_vga_decode(void *opaque, bool single_vga) +static unsigned int vfio_pci_set_decode(struct pci_dev *pdev, bool single_vga) { - struct vfio_pci_device *vdev = opaque; - struct pci_dev *tmp = NULL, *pdev = vdev->pdev; + struct pci_dev *tmp = NULL; unsigned char max_busnr; unsigned int decodes; @@ -1954,10 +1953,10 @@ static int vfio_pci_vga_init(struct vfio_pci_device *vdev) if (!vfio_pci_is_vga(pdev)) return 0; - ret = vga_client_register(pdev, vdev, NULL, vfio_pci_set_vga_decode); + ret = vga_client_register(pdev, vfio_pci_set_decode); if (ret) return ret; - vga_set_legacy_decoding(pdev, vfio_pci_set_vga_decode(vdev, false)); + vga_set_legacy_decoding(pdev, vfio_pci_set_decode(pdev, false)); return 0; } @@ -1967,7 +1966,7 @@ static void vfio_pci_vga_uninit(struct vfio_pci_device *vdev) if (!vfio_pci_is_vga(pdev)) return; - vga_client_register(pdev, NULL, NULL, NULL); + vga_client_unregister(pdev); vga_set_legacy_decoding(pdev, VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM | VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM); diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c index 1447324ed0b6..45e64016db32 100644 --- a/drivers/video/fbdev/arcfb.c +++ b/drivers/video/fbdev/arcfb.c @@ -446,7 +446,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf, /* modded from epson 1355 */ unsigned long p; - int err=-EINVAL; + int err; unsigned int fbmemlength,x,y,w,h, bitppos, startpos, endpos, bitcount; struct arcfb_par *par; unsigned int xres; diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 1c855145711b..71fb710f1ce3 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -67,7 +67,7 @@ static struct fb_info *get_fb_info(unsigned int idx) mutex_lock(®istration_lock); fb_info = registered_fb[idx]; if (fb_info) - atomic_inc(&fb_info->count); + refcount_inc(&fb_info->count); mutex_unlock(®istration_lock); return fb_info; @@ -75,7 +75,7 @@ static struct fb_info *get_fb_info(unsigned int idx) static void put_fb_info(struct fb_info *fb_info) { - if (!atomic_dec_and_test(&fb_info->count)) + if (!refcount_dec_and_test(&fb_info->count)) return; if (fb_info->fbops->fb_destroy) fb_info->fbops->fb_destroy(fb_info); @@ -1592,7 +1592,7 @@ static int do_register_framebuffer(struct fb_info *fb_info) if (!registered_fb[i]) break; fb_info->node = i; - atomic_set(&fb_info->count, 1); + refcount_set(&fb_info->count, 1); mutex_init(&fb_info->lock); mutex_init(&fb_info->mm_lock); diff --git a/drivers/video/fbdev/kyro/fbdev.c b/drivers/video/fbdev/kyro/fbdev.c index 8fbde92ae8b9..4b8c7c16b1df 100644 --- a/drivers/video/fbdev/kyro/fbdev.c +++ b/drivers/video/fbdev/kyro/fbdev.c @@ -372,6 +372,11 @@ static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight /* probably haven't called CreateOverlay yet */ return -EINVAL; + if (ulWidth == 0 || ulWidth == 0xffffffff || + ulHeight == 0 || ulHeight == 0xffffffff || + (x < 2 && ulWidth + 2 == 0)) + return -EINVAL; + /* Stop Ramdac Output */ DisableRamdacOutput(deviceInfo.pSTGReg); diff --git a/drivers/video/fbdev/neofb.c b/drivers/video/fbdev/neofb.c index c0f4f402da3f..966df2a07360 100644 --- a/drivers/video/fbdev/neofb.c +++ b/drivers/video/fbdev/neofb.c @@ -585,7 +585,7 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) DBG("neofb_check_var"); - if (PICOS2KHZ(var->pixclock) > par->maxClock) + if (var->pixclock && PICOS2KHZ(var->pixclock) > par->maxClock) return -EINVAL; /* Is the mode larger than the LCD panel? */ |