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Author SHA1 Message Date
Al Viro
5f60d5f6bb move asm/unaligned.h to linux/unaligned.h 
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
 2024-10-02 17:23:23 -04:00
Andrey Shumilin
9cf14f5a27 fbdev: sisfb: Fix strbuf array overflow 
The values of the variables xres and yres are placed in strbuf.
These variables are obtained from strbuf1.
The strbuf1 array contains digit characters
and a space if the array contains non-digit characters.
Then, when executing sprintf(strbuf, "%ux%ux8", xres, yres);
more than 16 bytes will be written to strbuf.
It is suggested to increase the size of the strbuf array to 24.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Andrey Shumilin <shum.sdl@nppct.ru>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-28 00:42:11 +02:00
Qianqiang Liu
2555906fd5 fbcon: break earlier in search_fb_in_map and search_for_mapped_con 
Break the for loop immediately upon finding the target, making the
process more efficient.

Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-26 18:25:12 +02:00
Markus Elfring
f1ebbe4cd0 fbdev: omapfb: Call of_node_put(ep) only once in omapdss_of_find_source_for_first_ep() 
An of_node_put(ep) call was immediately used after a pointer check
for a of_graph_get_remote_port() call in this function implementation.
Thus call such a function only once instead directly before the check.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-26 18:20:27 +02:00
Qianqiang Liu
5b97eebcce fbcon: Fix a NULL pointer dereference issue in fbcon_putcs 
syzbot has found a NULL pointer dereference bug in fbcon.
Here is the simplified C reproducer:

struct param {
	uint8_t type;
	struct tiocl_selection ts;
};

int main()
{
	struct fb_con2fbmap con2fb;
	struct param param;

	int fd = open("/dev/fb1", 0, 0);

	con2fb.console = 0x19;
	con2fb.framebuffer = 0;
	ioctl(fd, FBIOPUT_CON2FBMAP, &con2fb);

	param.type = 2;
	param.ts.xs = 0; param.ts.ys = 0;
	param.ts.xe = 0; param.ts.ye = 0;
	param.ts.sel_mode = 0;

	int fd1 = open("/dev/tty1", O_RDWR, 0);
	ioctl(fd1, TIOCLINUX, &param);

	con2fb.console = 1;
	con2fb.framebuffer = 0;
	ioctl(fd, FBIOPUT_CON2FBMAP, &con2fb);

	return 0;
}

After calling ioctl(fd1, TIOCLINUX, &param), the subsequent ioctl(fd, FBIOPUT_CON2FBMAP, &con2fb)
causes the kernel to follow a different execution path:

 set_con2fb_map
  -> con2fb_init_display
   -> fbcon_set_disp
    -> redraw_screen
     -> hide_cursor
      -> clear_selection
       -> highlight
        -> invert_screen
         -> do_update_region
          -> fbcon_putcs
           -> ops->putcs

Since ops->putcs is a NULL pointer, this leads to a kernel panic.
To prevent this, we need to call set_blitting_type() within set_con2fb_map()
to properly initialize ops->putcs.

Reported-by: syzbot+3d613ae53c031502687a@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=3d613ae53c031502687a
Tested-by: syzbot+3d613ae53c031502687a@syzkaller.appspotmail.com
Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-26 18:20:27 +02:00
Linus Torvalds
20d9ba738b - Added a check for the return value of spi_setup() in the l4f00242t03 driver to catch errors. 
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Merge tag 'backlight-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight update from Lee Jones:

 - Added a check for the return value of spi_setup() in the l4f00242t03
   driver to catch errors

* tag 'backlight-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: l4f00242t03: Add check for spi_setup
 2024-09-23 14:29:11 -07:00
Linus Torvalds
de848da12f drm next for 6.12-rc1 
string:
 - add mem_is_zero()
 
 core:
 - support more device numbers
 - use XArray for minor ids
 - add backlight constants
 - Split dma fence array creation into alloc and arm
 
 fbdev:
 - remove usage of old fbdev hooks
 
 kms:
 - Add might_fault() to drm_modeset_lock priming
 - Add dynamic per-crtc vblank configuration support
 
 dma-buf:
 - docs cleanup
 
 buddy:
 - Add start address support for trim function
 
 printk:
 - pass description to kmsg_dump
 
 scheduler;
 - Remove full_recover from drm_sched_start
 
 ttm:
 - Make LRU walk restartable after dropping locks
 - Allow direct reclaim to allocate local memory
 
 panic:
 - add display QR code (in rust)
 
 displayport:
 - mst: GUID improvements
 
 bridge:
 - Silence error message on -EPROBE_DEFER
 - analogix: Clean aup
 - bridge-connector: Fix double free
 - lt6505: Disable interrupt when powered off
 - tc358767: Make default DP port preemphasis configurable
 - lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
 - anx7625: simplify OF array handling
 - dw-hdmi: simplify clock handling
 - lontium-lt8912b: fix mode validation
 - nwl-dsi: fix mode vsync/hsync polarity
 
 xe:
 - Enable LunarLake and Battlemage support
 - Introducing Xe2 ccs modifiers for integrated and discrete graphics
 - rename xe perf to xe observation
 - use wb caching on DGFX for system memory
 - add fence timeouts
 - Lunar Lake graphics/media/display workarounds
 - Battlemage workarounds
 - Battlemage GSC support
 - GSC and HuC fw updates for LL/BM
 - use dma_fence_chain_free
 - refactor hw engine lookup and mmio access
 - enable priority mem read for Xe2
 - Add first GuC BMG fw
 - fix dma-resv lock
 - Fix DGFX display suspend/resume
 - Use xe_managed for kernel BOs
 - Use reserved copy engine for user binds on faulting devices
 - Allow mixing dma-fence jobs and long-running faulting jobs
 - fix media TLB invalidation
 - fix rpm in TTM swapout path
 - track resources and VF state by PF
 
 i915:
 - Type-C programming fix for MTL+
 - FBC cleanup
 - Calc vblank delay more accurately
 - On DP MST, Enable LT fallback for UHBR<->non-UHBR rates
 - Fix DP LTTPR detection
 - limit relocations to INT_MAX
 - fix long hangs in buddy allocator on DG2/A380
 
 amdgpu:
 - Per-queue reset support
 - SDMA devcoredump support
 - DCN 4.0.1 updates
 - GFX12/VCN4/JPEG4 updates
 - Convert vbios embedded EDID to drm_edid
 - GFX9.3/9.4 devcoredump support
 - process isolation framework for GFX 9.4.3/4
 - take IOMMU mappings into account for P2P DMA
 
 amdkfd:
 - CRIU fixes
 - HMM fix
 - Enable process isolation support for GFX 9.4.3/4
 - Allow users to target recommended SDMA engines
 - KFD support for targetting queues on recommended SDMA engines
 
 radeon:
 - remove .load and drm_dev_alloc
 - Fix vbios embedded EDID size handling
 - Convert vbios embedded EDID to drm_edid
 - Use GEM references instead of TTM
 - r100 cp init cleanup
 - Fix potential overflows in evergreen CS offset tracking
 
 msm:
 - DPU:
 - implement DP/PHY mapping on SC8180X
 - Enable writeback on SM8150, SC8180X, SM6125, SM6350
 - DP:
 - Enable widebus on all relevant chipsets
 - MSM8998 HDMI support
 - GPU:
 - A642L speedbin support
 - A615/A306/A621 support
 - A7xx devcoredump support
 
 ast:
 - astdp: Support AST2600 with VGA
 - Clean up HPD
 - Fix timeout loop for DP link training
 - reorganize output code by type (VGA, DP, etc)
 - convert to struct drm_edid
 - fix BMC handling for all outputs
 
 exynos:
 - drop stale MAINTAINERS pattern
 - constify struct
 
 loongson:
 - use GEM refcount over TTM
 
 mgag200:
 - Improve BMC handling
 - Support VBLANK intterupts
 - transparently support BMC outputs
 
 nouveau:
 - Refactor and clean up internals
 - Use GEM refcount over TTM's
 
 gm12u320:
 - convert to struct drm_edid
 
 gma500:
 - update i2c terms
 
 lcdif:
 - pixel clock fix
 
 host1x:
 - fix syncpoint IRQ during resume
 - use iommu_paging_domain_alloc()
 
 imx:
 - ipuv3: convert to struct drm_edid
 
 omapdrm:
 - improve error handling
 - use common helper for_each_endpoint_of_node()
 
 panel:
 - add support for BOE TV101WUM-LL2 plus DT bindings
 - novatek-nt35950: improve error handling
 - nv3051d: improve error handling
 - panel-edp: add support for BOE NE140WUM-N6G; revert support for
   SDC ATNA45AF01
 - visionox-vtdr6130: improve error handling; use
   devm_regulator_bulk_get_const()
 - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
   DT; Fix porch parameter
 - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
   BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
   CMN N116BCP-EA2, CSW MNB601LS1-4
 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
 - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
 - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
   for code sharing
 - panel-edp: fix name for HKC MB116AN01
 - jd9365da: fix "exit sleep" commands
 - jdi-fhd-r63452: simplify error handling with DSI multi-style
   helpers
 - mantix-mlaf057we51: simplify error handling with DSI multi-style
   helpers
 - simple:
   support Innolux G070ACE-LH3 plus DT bindings
   support On Tat Industrial Company KD50G21-40NT-A1 plus DT bindings
 - st7701:
   decouple DSI and DRM code
   add SPI support
   support Anbernic RG28XX plus DT bindings
 
 mediatek:
 - support alpha blending
 - remove cl in struct cmdq_pkt
 - ovl adaptor fix
 - add power domain binding for mediatek DPI controller
 
 renesas:
 - rz-du: add support for RZ/G2UL plus DT bindings
 
 rockchip:
 - Improve DP sink-capability reporting
 - dw_hdmi: Support 4k@60Hz
 - vop: Support RGB display on Rockchip RK3066; Support 4096px width
 
 sti:
 - convert to struct drm_edid
 
 stm:
 - Avoid UAF wih managed plane and CRTC helpers
 - Fix module owner
 - Fix error handling in probe
 - Depend on COMMON_CLK
 - ltdc: Fix transparency after disabling plane; Remove unused interrupt
 
 tegra:
 - gr3d: improve PM domain handling
 - convert to struct drm_edid
 - Call drm_atomic_helper_shutdown()
 
 vc4:
 - fix PM during detect
 - replace DRM_ERROR() with drm_error()
 - v3d: simplify clock retrieval
 
 v3d:
 - Clean up perfmon
 
 virtio:
 - add DRM capset
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Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "This adds a couple of patches outside the drm core, all should be
  acked appropriately, the string and pstore ones are the main ones that
  come to mind.

  Otherwise it's the usual drivers, xe is getting enabled by default on
  some new hardware, we've changed the device number handling to allow
  more devices, and we added some optional rust code to create QR codes
  in the panic handler, an idea first suggested I think 10 years ago :-)

  string:
   - add mem_is_zero()

  core:
   - support more device numbers
   - use XArray for minor ids
   - add backlight constants
   - Split dma fence array creation into alloc and arm

  fbdev:
   - remove usage of old fbdev hooks

  kms:
   - Add might_fault() to drm_modeset_lock priming
   - Add dynamic per-crtc vblank configuration support

  dma-buf:
   - docs cleanup

  buddy:
   - Add start address support for trim function

  printk:
   - pass description to kmsg_dump

  scheduler:
   - Remove full_recover from drm_sched_start

  ttm:
   - Make LRU walk restartable after dropping locks
   - Allow direct reclaim to allocate local memory

  panic:
   - add display QR code (in rust)

  displayport:
   - mst: GUID improvements

  bridge:
   - Silence error message on -EPROBE_DEFER
   - analogix: Clean aup
   - bridge-connector: Fix double free
   - lt6505: Disable interrupt when powered off
   - tc358767: Make default DP port preemphasis configurable
   - lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
   - anx7625: simplify OF array handling
   - dw-hdmi: simplify clock handling
   - lontium-lt8912b: fix mode validation
   - nwl-dsi: fix mode vsync/hsync polarity

  xe:
   - Enable LunarLake and Battlemage support
   - Introducing Xe2 ccs modifiers for integrated and discrete graphics
   - rename xe perf to xe observation
   - use wb caching on DGFX for system memory
   - add fence timeouts
   - Lunar Lake graphics/media/display workarounds
   - Battlemage workarounds
   - Battlemage GSC support
   - GSC and HuC fw updates for LL/BM
   - use dma_fence_chain_free
   - refactor hw engine lookup and mmio access
   - enable priority mem read for Xe2
   - Add first GuC BMG fw
   - fix dma-resv lock
   - Fix DGFX display suspend/resume
   - Use xe_managed for kernel BOs
   - Use reserved copy engine for user binds on faulting devices
   - Allow mixing dma-fence jobs and long-running faulting jobs
   - fix media TLB invalidation
   - fix rpm in TTM swapout path
   - track resources and VF state by PF

  i915:
   - Type-C programming fix for MTL+
   - FBC cleanup
   - Calc vblank delay more accurately
   - On DP MST, Enable LT fallback for UHBR<->non-UHBR rates
   - Fix DP LTTPR detection
   - limit relocations to INT_MAX
   - fix long hangs in buddy allocator on DG2/A380

  amdgpu:
   - Per-queue reset support
   - SDMA devcoredump support
   - DCN 4.0.1 updates
   - GFX12/VCN4/JPEG4 updates
   - Convert vbios embedded EDID to drm_edid
   - GFX9.3/9.4 devcoredump support
   - process isolation framework for GFX 9.4.3/4
   - take IOMMU mappings into account for P2P DMA

  amdkfd:
   - CRIU fixes
   - HMM fix
   - Enable process isolation support for GFX 9.4.3/4
   - Allow users to target recommended SDMA engines
   - KFD support for targetting queues on recommended SDMA engines

  radeon:
   - remove .load and drm_dev_alloc
   - Fix vbios embedded EDID size handling
   - Convert vbios embedded EDID to drm_edid
   - Use GEM references instead of TTM
   - r100 cp init cleanup
   - Fix potential overflows in evergreen CS offset tracking

  msm:
   - DPU:
      - implement DP/PHY mapping on SC8180X
      - Enable writeback on SM8150, SC8180X, SM6125, SM6350
   - DP:
      - Enable widebus on all relevant chipsets
      - MSM8998 HDMI support
   - GPU:
      - A642L speedbin support
      - A615/A306/A621 support
      - A7xx devcoredump support

  ast:
   - astdp: Support AST2600 with VGA
   - Clean up HPD
   - Fix timeout loop for DP link training
   - reorganize output code by type (VGA, DP, etc)
   - convert to struct drm_edid
   - fix BMC handling for all outputs

  exynos:
   - drop stale MAINTAINERS pattern
   - constify struct

  loongson:
   - use GEM refcount over TTM

  mgag200:
   - Improve BMC handling
   - Support VBLANK intterupts
   - transparently support BMC outputs

  nouveau:
   - Refactor and clean up internals
   - Use GEM refcount over TTM's

  gm12u320:
   - convert to struct drm_edid

  gma500:
   - update i2c terms

  lcdif:
   - pixel clock fix

  host1x:
   - fix syncpoint IRQ during resume
   - use iommu_paging_domain_alloc()

  imx:
   - ipuv3: convert to struct drm_edid

  omapdrm:
   - improve error handling
   - use common helper for_each_endpoint_of_node()

  panel:
   - add support for BOE TV101WUM-LL2 plus DT bindings
   - novatek-nt35950: improve error handling
   - nv3051d: improve error handling
   - panel-edp:
      - add support for BOE NE140WUM-N6G
      - revert support for SDC ATNA45AF01
   - visionox-vtdr6130:
      - improve error handling
      - use devm_regulator_bulk_get_const()
   - boe-th101mb31ig002:
      - Support for starry-er88577 MIPI-DSI panel plus DT
      - Fix porch parameter
   - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1, BOE
     NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
     CMN N116BCP-EA2, CSW MNB601LS1-4
   - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
   - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
   - jd9365da:
      - Support Melfas lmfbx101117480 MIPI-DSI panel plus DT
      - Refactor for code sharing
   - panel-edp: fix name for HKC MB116AN01
   - jd9365da: fix "exit sleep" commands
   - jdi-fhd-r63452: simplify error handling with DSI multi-style
     helpers
   - mantix-mlaf057we51: simplify error handling with DSI multi-style
     helpers
   - simple:
      - support Innolux G070ACE-LH3 plus DT bindings
      - support On Tat Industrial Company KD50G21-40NT-A1 plus DT
        bindings
   - st7701:
      - decouple DSI and DRM code
      - add SPI support
      - support Anbernic RG28XX plus DT bindings

  mediatek:
   - support alpha blending
   - remove cl in struct cmdq_pkt
   - ovl adaptor fix
   - add power domain binding for mediatek DPI controller

  renesas:
   - rz-du: add support for RZ/G2UL plus DT bindings

  rockchip:
   - Improve DP sink-capability reporting
   - dw_hdmi: Support 4k@60Hz
   - vop:
      - Support RGB display on Rockchip RK3066
      - Support 4096px width

  sti:
   - convert to struct drm_edid

  stm:
   - Avoid UAF wih managed plane and CRTC helpers
   - Fix module owner
   - Fix error handling in probe
   - Depend on COMMON_CLK
   - ltdc:
      - Fix transparency after disabling plane
      - Remove unused interrupt

  tegra:
   - gr3d: improve PM domain handling
   - convert to struct drm_edid
   - Call drm_atomic_helper_shutdown()

  vc4:
   - fix PM during detect
   - replace DRM_ERROR() with drm_error()
   - v3d: simplify clock retrieval

  v3d:
   - Clean up perfmon

  virtio:
   - add DRM capset"

* tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel: (1326 commits)
  drm/xe: Fix missing conversion to xe_display_pm_runtime_resume
  drm/xe/xe2hpg: Add Wa_15016589081
  drm/xe: Don't keep stale pointer to bo->ggtt_node
  drm/xe: fix missing 'xe_vm_put'
  drm/xe: fix build warning with CONFIG_PM=n
  drm/xe: Suppress missing outer rpm protection warning
  drm/xe: prevent potential UAF in pf_provision_vf_ggtt()
  drm/amd/display: Add all planes on CRTC to state for overlay cursor
  drm/i915/bios: fix printk format width
  drm/i915/display: Fix BMG CCS modifiers
  drm/amdgpu: get rid of bogus includes of fdtable.h
  drm/amdkfd: CRIU fixes
  drm/amdgpu: fix a race in kfd_mem_export_dmabuf()
  drm: new helper: drm_gem_prime_handle_to_dmabuf()
  drm/amdgpu/atomfirmware: Silence UBSAN warning
  drm/amdgpu: Fix kdoc entry in 'amdgpu_vm_cpu_prepare'
  drm/amd/amdgpu: apply command submission parser for JPEG v1
  drm/amd/amdgpu: apply command submission parser for JPEG v2+
  drm/amd/pm: fix the pp_dpm_pcie issue on smu v14.0.2/3
  drm/amd/pm: update the features set on smu v14.0.2/3
  ...
 2024-09-19 10:18:15 +02:00
Linus Torvalds
f4960b002c fbdev fixes and updates for 6.12-rc1: 
- video: Reduce code when CONFIG_HAS_IOPORT=n
 - xenfb: Fix crash by assigning fb_info->device
 - pxafb: Fix possible use after free in pxafb_task()
 - efifb: Introduce and use new devm_register_framebuffer() function
 - mmpfb: Utilize devm_clk_get_enabled() helpers
 - various typo fixes and code cleanups
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Merge tag 'fbdev-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 - video: Reduce code when CONFIG_HAS_IOPORT=n
 - xenfb: Fix crash by assigning fb_info->device
 - pxafb: Fix possible use after free in pxafb_task()
 - efifb: Introduce and use new devm_register_framebuffer() function
 - mmpfb: Utilize devm_clk_get_enabled() helpers
 - various typo fixes and code cleanups

* tag 'fbdev-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: omapfb: Fix typo in comment
  fbdev: pxafb: Fix possible use after free in pxafb_task()
  fbdev: xen-fbfront: Assign fb_info->device
  fbdev: hyperv_fb: Convert comma to semicolon
  fbdev: imsttfb: convert comma to semicolon
  fbdev: pxa3xx-gcu: Convert comma to semicolon
  fbdev: efifb: Use driver-private screen_info for sysfs
  fbdev: efifb: Use devm_register_framebuffer()
  fbdev: efifb: Register sysfs groups through driver core
  fbdev: Introduce devm_register_framebuffer()
  fbdev: omapfb: Use sysfs_emit_at() to simplify code
  fbdev: omapfb: panel-sony-acx565akm: Simplify show_cabc_available_modes()
  fbdev: mmp: Use devm_clk_get_enabled() helpers
  fbdev: hpfb: Fix an error handling path in hpfb_dio_probe()
  video: Handle HAS_IOPORT dependencies
 2024-09-18 12:53:22 +02:00
Andrew Kreimer
de5e89b665 fbdev: omapfb: Fix typo in comment 
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Kreimer <algonell@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-11 20:53:04 +02:00
Kaixin Wang
4a6921095e fbdev: pxafb: Fix possible use after free in pxafb_task() 
In the pxafb_probe function, it calls the pxafb_init_fbinfo function,
after which &fbi->task is associated with pxafb_task. Moreover,
within this pxafb_init_fbinfo function, the pxafb_blank function
within the &pxafb_ops struct is capable of scheduling work.

If we remove the module which will call pxafb_remove to make cleanup,
it will call unregister_framebuffer function which can call
do_unregister_framebuffer to free fbi->fb through
put_fb_info(fb_info), while the work mentioned above will be used.
The sequence of operations that may lead to a UAF bug is as follows:

CPU0                                                CPU1

                                   | pxafb_task
pxafb_remove                       |
unregister_framebuffer(info)       |
do_unregister_framebuffer(fb_info) |
put_fb_info(fb_info)               |
// free fbi->fb                    | set_ctrlr_state(fbi, state)
                                   | __pxafb_lcd_power(fbi, 0)
                                   | fbi->lcd_power(on, &fbi->fb.var)
                                   | //use fbi->fb

Fix it by ensuring that the work is canceled before proceeding
with the cleanup in pxafb_remove.

Note that only root user can remove the driver at runtime.

Signed-off-by: Kaixin Wang <kxwang23@m.fudan.edu.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-11 19:36:29 +02:00
Simona Vetter
b615b9c36c Linux 6.11-rc7 
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Merge v6.11-rc7 into drm-next

Thomas needs 5a498d4d06 ("drm/fbdev-dma: Only install deferred I/O
if necessary") in drm-misc, so start the backmerge cascade.

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
 2024-09-11 09:18:15 +02:00
Jason Andryuk
c2af2a4556 fbdev: xen-fbfront: Assign fb_info->device 
Probing xen-fbfront faults in video_is_primary_device().  The passed-in
struct device is NULL since xen-fbfront doesn't assign it and the
memory is kzalloc()-ed.  Assign fb_info->device to avoid this.

This was exposed by the conversion of fb_is_primary_device() to
video_is_primary_device() which dropped a NULL check for struct device.

Fixes: f178e96de7 ("arch: Remove struct fb_info from video helpers")
Reported-by: Arthur Borsboom <arthurborsboom@gmail.com>
Closes: https://lore.kernel.org/xen-devel/CALUcmUncX=LkXWeiSiTKsDY-cOe8QksWhFvcCneOKfrKd0ZajA@mail.gmail.com/
Tested-by: Arthur Borsboom <arthurborsboom@gmail.com>
CC: stable@vger.kernel.org
Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-11 07:58:18 +02:00
Chen Ni
27f22f8970 fbdev: hyperv_fb: Convert comma to semicolon 
Replace a comma between expression statements by a semicolon.

Fixes: d786e00d19 ("drivers: hv, hyperv_fb: Untangle and refactor Hyper-V panic notifiers")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-02 13:54:57 +02:00
Chen Ni
18b0327310 fbdev: imsttfb: convert comma to semicolon 
Replace a comma between expression statements by a semicolon.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-02 13:54:26 +02:00
Chen Ni
2ff86df2b6 fbdev: pxa3xx-gcu: Convert comma to semicolon 
Replace a comma between expression statements by a semicolon.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-09-02 13:54:25 +02:00
Thomas Weißschuh
bd97615a33 fbdev: efifb: Use driver-private screen_info for sysfs 
Since commit b9cfd1d271 ("fbdev/efifb: Use screen_info pointer from device")
efifb uses a local copy of screen_info and applies its modifications
there. Adapt the sysfs attributes to also work with the custom copy
instead of the unmodified platform data.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Thomas Weißschuh
077091721a fbdev: efifb: Use devm_register_framebuffer() 
This simplifies the error handling.
Also the drvdata slot is now unused and can be used for other usecases.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Thomas Weißschuh
95cdd538e0 fbdev: efifb: Register sysfs groups through driver core 
The driver core can register and cleanup sysfs groups already.
Make use of that functionality to simplify the error handling and
cleanup.

Also avoid a UAF race during unregistering where the sysctl attributes
were usable after the info struct was freed.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Thomas Weißschuh
929c81ade6 fbdev: Introduce devm_register_framebuffer() 
Introduce a device-managed variant of register_framebuffer() which
automatically unregisters the framebuffer on device destruction.
This can simplify the error handling and resource management in drivers.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Christophe JAILLET
2451a285ee fbdev: omapfb: Use sysfs_emit_at() to simplify code 
This file already uses sysfs_emit(). So be consistent and also use
sysfs_emit_at().

Moreover, size is always < PAGE_SIZE because scnprintf() (and now
sysfs_emit_at()) returns the number of characters written not including the
trailing '\0'. So some tests can be removed.

This slightly simplifies the code and makes it more readable.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Christophe JAILLET
33ae421ad2 fbdev: omapfb: panel-sony-acx565akm: Simplify show_cabc_available_modes() 
Use sysfs_emit_at() instead of snprintf() + custom logic.
Using sysfs_emit_at() is much more simple.

Also, sysfs_emit() is already used in this function, so using
sysfs_emit_at() is more consistent.

Also simplify the logic:
  - always add a space after an entry
  - change the last space into a '\n'

Finally it is easy to see that, given the size of cabc_modes, PAGE_SIZE
can not be reached.
So better keep everything simple (and correct).

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
ying zuxin
5ee70bec79 fbdev: mmp: Use devm_clk_get_enabled() helpers 
The devm_clk_get_enabled() helpers:
    - call devm_clk_get()
    - call clk_prepare_enable() and register what is needed in order to
     call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code and avoids the calls to clk_disable_unprepare().

Signed-off-by: ying zuxin <yingzuxin@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Christophe JAILLET
aa578e8975 fbdev: hpfb: Fix an error handling path in hpfb_dio_probe() 
If an error occurs after request_mem_region(), a corresponding
release_mem_region() should be called, as already done in the remove
function.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-08-30 18:42:38 +02:00
Alex Deucher
b49420d6a1 video/aperture: optionally match the device in sysfb_disable() 
In aperture_remove_conflicting_pci_devices(), we currently only
call sysfb_disable() on vga class devices.  This leads to the
following problem when the pimary device is not VGA compatible:

1. A PCI device with a non-VGA class is the boot display
2. That device is probed first and it is not a VGA device so
   sysfb_disable() is not called, but the device resources
   are freed by aperture_detach_platform_device()
3. Non-primary GPU has a VGA class and it ends up calling sysfb_disable()
4. NULL pointer dereference via sysfb_disable() since the resources
   have already been freed by aperture_detach_platform_device() when
   it was called by the other device.

Fix this by passing a device pointer to sysfb_disable() and checking
the device to determine if we should execute it or not.

v2: Fix build when CONFIG_SCREEN_INFO is not set
v3: Move device check into the mutex
    Drop primary variable in aperture_remove_conflicting_pci_devices()
    Drop __init on pci sysfb_pci_dev_is_enabled()

Fixes: 5ae3716cfd ("video/aperture: Only remove sysfb on the default vga pci device")
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Helge Deller <deller@gmx.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240821191135.829765-1-alexander.deucher@amd.com
 2024-08-26 19:14:48 -04:00
Daniel Vetter
91dae758bd drm-misc-next for v6.12: 
UAPI Changes:
 
 virtio:
 - Define DRM capset
 
 Cross-subsystem Changes:
 
 dma-buf:
 - heaps: Clean up documentation
 
 printk:
 - Pass description to kmsg_dump()
 
 Core Changes:
 
 CI:
 - Update IGT tests
 - Point upstream repo to GitLab instance
 
 modesetting:
 - Introduce Power Saving Policy property for connectors
 - Add might_fault() to drm_modeset_lock priming
 - Add dynamic per-crtc vblank configuration support
 
 panic:
 - Avoid build-time interference with framebuffer console
 
 docs:
 - Document Colorspace property
 
 scheduler:
 - Remove full_recover from drm_sched_start
 
 TTM:
 - Make LRU walk restartable after dropping locks
 - Allow direct reclaim to allocate local memory
 
 Driver Changes:
 
 amdgpu:
 - Support Power Saving Policy connector property
 
 ast:
 - astdp: Support AST2600 with VGA; Clean up HPD
 
 bridge:
 - Silence error message on -EPROBE_DEFER
 - analogix: Clean aup
 - bridge-connector: Fix double free
 - lt6505: Disable interrupt when powered off
 - tc358767: Make default DP port preemphasis configurable
 
 gma500:
 - Update i2c terminology
 
 ivpu:
 - Add MODULE_FIRMWARE()
 
 lcdif:
 - Fix pixel clock
 
 loongson:
 - Use GEM refcount over TTM's
 
 mgag200:
 - Improve BMC handling
 - Support VBLANK intterupts
 
 nouveau:
 - Refactor and clean up internals
 - Use GEM refcount over TTM's
 
 panel:
 - Shutdown fixes plus documentation
 - Refactor several drivers for better code sharing
 - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
   DT; Fix porch parameter
 - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
   BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
   CMN N116BCP-EA2, CSW MNB601LS1-4
 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
 - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
 - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
   for code sharing
 
 sti:
 - Fix module owner
 
 stm:
 - Avoid UAF wih managed plane and CRTC helpers
 - Fix module owner
 - Fix error handling in probe
 - Depend on COMMON_CLK
 - ltdc: Fix transparency after disabling plane; Remove unused interrupt
 
 tegra:
 - Call drm_atomic_helper_shutdown()
 
 v3d:
 - Clean up perfmon
 
 vkms:
 - Clean up
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Merge tag 'drm-misc-next-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.12:

UAPI Changes:

virtio:
- Define DRM capset

Cross-subsystem Changes:

dma-buf:
- heaps: Clean up documentation

printk:
- Pass description to kmsg_dump()

Core Changes:

CI:
- Update IGT tests
- Point upstream repo to GitLab instance

modesetting:
- Introduce Power Saving Policy property for connectors
- Add might_fault() to drm_modeset_lock priming
- Add dynamic per-crtc vblank configuration support

panic:
- Avoid build-time interference with framebuffer console

docs:
- Document Colorspace property

scheduler:
- Remove full_recover from drm_sched_start

TTM:
- Make LRU walk restartable after dropping locks
- Allow direct reclaim to allocate local memory

Driver Changes:

amdgpu:
- Support Power Saving Policy connector property

ast:
- astdp: Support AST2600 with VGA; Clean up HPD

bridge:
- Silence error message on -EPROBE_DEFER
- analogix: Clean aup
- bridge-connector: Fix double free
- lt6505: Disable interrupt when powered off
- tc358767: Make default DP port preemphasis configurable

gma500:
- Update i2c terminology

ivpu:
- Add MODULE_FIRMWARE()

lcdif:
- Fix pixel clock

loongson:
- Use GEM refcount over TTM's

mgag200:
- Improve BMC handling
- Support VBLANK intterupts

nouveau:
- Refactor and clean up internals
- Use GEM refcount over TTM's

panel:
- Shutdown fixes plus documentation
- Refactor several drivers for better code sharing
- boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
  DT; Fix porch parameter
- edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
  BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
  CMN N116BCP-EA2, CSW MNB601LS1-4
- himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
- ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
- jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
  for code sharing

sti:
- Fix module owner

stm:
- Avoid UAF wih managed plane and CRTC helpers
- Fix module owner
- Fix error handling in probe
- Depend on COMMON_CLK
- ltdc: Fix transparency after disabling plane; Remove unused interrupt

tegra:
- Call drm_atomic_helper_shutdown()

v3d:
- Clean up perfmon

vkms:
- Clean up

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801121406.GA102996@linux.fritz.box
 2024-08-08 18:58:46 +02:00
Chen Ni
fea88a13a5 backlight: l4f00242t03: Add check for spi_setup 
Add check for the return value of spi_setup() and return the error
if it fails in order to catch the error.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240705092800.3221159-1-nichen@iscas.ac.cn
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-08-01 13:40:14 +01:00
Jocelyn Falempe
1c1ed27ee1 fbcon: Use oops_in_progress instead of panic_cpu 
Panic_cpu is not exported, so it can't be used if fbcon is used as
a module. Use oops_in_progress in this case, but non-fatal oops won't
be printed.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407210203.2ISiIC9m-lkp@intel.com/
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240722114800.174558-1-jfalempe@redhat.com
 2024-07-22 17:51:29 +02:00
Linus Torvalds
fbc90c042c - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 
walkers") is known to cause a performance regression
   (https://lore.kernel.org/all/3acefad9-96e5-4681-8014-827d6be71c7a@linux.ibm.com/T/#mfa809800a7862fb5bdf834c6f71a3a5113eb83ff).
   Yu has a fix which I'll send along later via the hotfixes branch.
 
 - In the series "mm: Avoid possible overflows in dirty throttling" Jan
   Kara addresses a couple of issues in the writeback throttling code.
   These fixes are also targetted at -stable kernels.
 
 - Ryusuke Konishi's series "nilfs2: fix potential issues related to
   reserved inodes" does that.  This should actually be in the
   mm-nonmm-stable tree, along with the many other nilfs2 patches.  My bad.
 
 - More folio conversions from Kefeng Wang in the series "mm: convert to
   folio_alloc_mpol()"
 
 - Kemeng Shi has sent some cleanups to the writeback code in the series
   "Add helper functions to remove repeated code and improve readability of
   cgroup writeback"
 
 - Kairui Song has made the swap code a little smaller and a little
   faster in the series "mm/swap: clean up and optimize swap cache index".
 
 - In the series "mm/memory: cleanly support zeropage in
   vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
   Hildenbrand has reworked the rather sketchy handling of the use of the
   zeropage in MAP_SHARED mappings.  I don't see any runtime effects here -
   more a cleanup/understandability/maintainablity thing.
 
 - Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling of
   higher addresses, for aarch64.  The (poorly named) series is
   "Restructure va_high_addr_switch".
 
 - The core TLB handling code gets some cleanups and possible slight
   optimizations in Bang Li's series "Add update_mmu_tlb_range() to
   simplify code".
 
 - Jane Chu has improved the handling of our
   fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in the
   series "Enhance soft hwpoison handling and injection".
 
 - Jeff Johnson has sent a billion patches everywhere to add
   MODULE_DESCRIPTION() to everything.  Some landed in this pull.
 
 - In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang has
   simplified migration's use of hardware-offload memory copying.
 
 - Yosry Ahmed performs more folio API conversions in his series "mm:
   zswap: trivial folio conversions".
 
 - In the series "large folios swap-in: handle refault cases first",
   Chuanhua Han inches us forward in the handling of large pages in the
   swap code.  This is a cleanup and optimization, working toward the end
   objective of full support of large folio swapin/out.
 
 - In the series "mm,swap: cleanup VMA based swap readahead window
   calculation", Huang Ying has contributed some cleanups and a possible
   fixlet to his VMA based swap readahead code.
 
 - In the series "add mTHP support for anonymous shmem" Baolin Wang has
   taught anonymous shmem mappings to use multisize THP.  By default this
   is a no-op - users must opt in vis sysfs controls.  Dramatic
   improvements in pagefault latency are realized.
 
 - David Hildenbrand has some cleanups to our remaining use of
   page_mapcount() in the series "fs/proc: move page_mapcount() to
   fs/proc/internal.h".
 
 - David also has some highmem accounting cleanups in the series
   "mm/highmem: don't track highmem pages manually".
 
 - Build-time fixes and cleanups from John Hubbard in the series
   "cleanups, fixes, and progress towards avoiding "make headers"".
 
 - Cleanups and consolidation of the core pagemap handling from Barry
   Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
   and utilize them".
 
 - Lance Yang's series "Reclaim lazyfree THP without splitting" has
   reduced the latency of the reclaim of pmd-mapped THPs under fairly
   common circumstances.  A 10x speedup is seen in a microbenchmark.
 
   It does this by punting to aother CPU but I guess that's a win unless
   all CPUs are pegged.
 
 - hugetlb_cgroup cleanups from Xiu Jianfeng in the series
   "mm/hugetlb_cgroup: rework on cftypes".
 
 - Miaohe Lin's series "Some cleanups for memory-failure" does just that
   thing.
 
 - Is anyone reading this stuff?  If so, email me!
 
 - Someone other than SeongJae has developed a DAMON feature in Honggyu
   Kim's series "DAMON based tiered memory management for CXL memory".
   This adds DAMON features which may be used to help determine the
   efficiency of our placement of CXL/PCIe attached DRAM.
 
 - DAMON user API centralization and simplificatio work in SeongJae
   Park's series "mm/damon: introduce DAMON parameters online commit
   function".
 
 - In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
   David Hildenbrand does some maintenance work on zsmalloc - partially
   modernizing its use of pageframe fields.
 
 - Kefeng Wang provides more folio conversions in the series "mm: remove
   page_maybe_dma_pinned() and page_mkclean()".
 
 - More cleanup from David Hildenbrand, this time in the series
   "mm/memory_hotplug: use PageOffline() instead of PageReserved() for
   !ZONE_DEVICE".  It "enlightens memory hotplug more about PageOffline()
   pages" and permits the removal of some virtio-mem hacks.
 
 - Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
   __folio_add_anon_rmap()" is a cleanup to the anon folio handling in
   preparation for mTHP (multisize THP) swapin.
 
 - Kefeng Wang's series "mm: improve clear and copy user folio"
   implements more folio conversions, this time in the area of large folio
   userspace copying.
 
 - The series "Docs/mm/damon/maintaier-profile: document a mailing tool
   and community meetup series" tells people how to get better involved
   with other DAMON developers.  From SeongJae Park.
 
 - A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
   that.
 
 - David Hildenbrand sends along more cleanups, this time against the
   migration code.  The series is "mm/migrate: move NUMA hinting fault
   folio isolation + checks under PTL".
 
 - Jan Kara has found quite a lot of strangenesses and minor errors in
   the readahead code.  He addresses this in the series "mm: Fix various
   readahead quirks".
 
 - SeongJae Park's series "selftests/damon: test DAMOS tried regions and
   {min,max}_nr_regions" adds features and addresses errors in DAMON's self
   testing code.
 
 - Gavin Shan has found a userspace-triggerable WARN in the pagecache
   code.  The series "mm/filemap: Limit page cache size to that supported
   by xarray" addresses this.  The series is marked cc:stable.
 
 - Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
   and cleanup" cleans up and slightly optimizes KSM.
 
 - Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
   code motion.  The series (which also makes the memcg-v1 code
   Kconfigurable) are
 
   "mm: memcg: separate legacy cgroup v1 code and put under config
   option" and
   "mm: memcg: put cgroup v1-specific memcg data under CONFIG_MEMCG_V1"
 
 - Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
   adds an additional feature to this cgroup-v2 control file.
 
 - The series "Userspace controls soft-offline pages" from Jiaqi Yan
   permits userspace to stop the kernel's automatic treatment of excessive
   correctable memory errors.  In order to permit userspace to monitor and
   handle this situation.
 
 - Kefeng Wang's series "mm: migrate: support poison recover from migrate
   folio" teaches the kernel to appropriately handle migration from
   poisoned source folios rather than simply panicing.
 
 - SeongJae Park's series "Docs/damon: minor fixups and improvements"
   does those things.
 
 - In the series "mm/zsmalloc: change back to per-size_class lock"
   Chengming Zhou improves zsmalloc's scalability and memory utilization.
 
 - Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
   pinning memfd folios" makes the GUP code use FOLL_PIN rather than bare
   refcount increments.  So these paes can first be moved aside if they
   reside in the movable zone or a CMA block.
 
 - Andrii Nakryiko has added a binary ioctl()-based API to /proc/pid/maps
   for much faster reading of vma information.  The series is "query VMAs
   from /proc/<pid>/maps".
 
 - In the series "mm: introduce per-order mTHP split counters" Lance Yang
   improves the kernel's presentation of developer information related to
   multisize THP splitting.
 
 - Michael Ellerman has developed the series "Reimplement huge pages
   without hugepd on powerpc (8xx, e500, book3s/64)".  This permits
   userspace to use all available huge page sizes.
 
 - In the series "revert unconditional slab and page allocator fault
   injection calls" Vlastimil Babka removes a performance-affecting and not
   very useful feature from slab fault injection.
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Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - In the series "mm: Avoid possible overflows in dirty throttling" Jan
   Kara addresses a couple of issues in the writeback throttling code.
   These fixes are also targetted at -stable kernels.

 - Ryusuke Konishi's series "nilfs2: fix potential issues related to
   reserved inodes" does that. This should actually be in the
   mm-nonmm-stable tree, along with the many other nilfs2 patches. My
   bad.

 - More folio conversions from Kefeng Wang in the series "mm: convert to
   folio_alloc_mpol()"

 - Kemeng Shi has sent some cleanups to the writeback code in the series
   "Add helper functions to remove repeated code and improve readability
   of cgroup writeback"

 - Kairui Song has made the swap code a little smaller and a little
   faster in the series "mm/swap: clean up and optimize swap cache
   index".

 - In the series "mm/memory: cleanly support zeropage in
   vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
   Hildenbrand has reworked the rather sketchy handling of the use of
   the zeropage in MAP_SHARED mappings. I don't see any runtime effects
   here - more a cleanup/understandability/maintainablity thing.

 - Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling
   of higher addresses, for aarch64. The (poorly named) series is
   "Restructure va_high_addr_switch".

 - The core TLB handling code gets some cleanups and possible slight
   optimizations in Bang Li's series "Add update_mmu_tlb_range() to
   simplify code".

 - Jane Chu has improved the handling of our
   fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in
   the series "Enhance soft hwpoison handling and injection".

 - Jeff Johnson has sent a billion patches everywhere to add
   MODULE_DESCRIPTION() to everything. Some landed in this pull.

 - In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang
   has simplified migration's use of hardware-offload memory copying.

 - Yosry Ahmed performs more folio API conversions in his series "mm:
   zswap: trivial folio conversions".

 - In the series "large folios swap-in: handle refault cases first",
   Chuanhua Han inches us forward in the handling of large pages in the
   swap code. This is a cleanup and optimization, working toward the end
   objective of full support of large folio swapin/out.

 - In the series "mm,swap: cleanup VMA based swap readahead window
   calculation", Huang Ying has contributed some cleanups and a possible
   fixlet to his VMA based swap readahead code.

 - In the series "add mTHP support for anonymous shmem" Baolin Wang has
   taught anonymous shmem mappings to use multisize THP. By default this
   is a no-op - users must opt in vis sysfs controls. Dramatic
   improvements in pagefault latency are realized.

 - David Hildenbrand has some cleanups to our remaining use of
   page_mapcount() in the series "fs/proc: move page_mapcount() to
   fs/proc/internal.h".

 - David also has some highmem accounting cleanups in the series
   "mm/highmem: don't track highmem pages manually".

 - Build-time fixes and cleanups from John Hubbard in the series
   "cleanups, fixes, and progress towards avoiding "make headers"".

 - Cleanups and consolidation of the core pagemap handling from Barry
   Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
   and utilize them".

 - Lance Yang's series "Reclaim lazyfree THP without splitting" has
   reduced the latency of the reclaim of pmd-mapped THPs under fairly
   common circumstances. A 10x speedup is seen in a microbenchmark.

   It does this by punting to aother CPU but I guess that's a win unless
   all CPUs are pegged.

 - hugetlb_cgroup cleanups from Xiu Jianfeng in the series
   "mm/hugetlb_cgroup: rework on cftypes".

 - Miaohe Lin's series "Some cleanups for memory-failure" does just that
   thing.

 - Someone other than SeongJae has developed a DAMON feature in Honggyu
   Kim's series "DAMON based tiered memory management for CXL memory".
   This adds DAMON features which may be used to help determine the
   efficiency of our placement of CXL/PCIe attached DRAM.

 - DAMON user API centralization and simplificatio work in SeongJae
   Park's series "mm/damon: introduce DAMON parameters online commit
   function".

 - In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
   David Hildenbrand does some maintenance work on zsmalloc - partially
   modernizing its use of pageframe fields.

 - Kefeng Wang provides more folio conversions in the series "mm: remove
   page_maybe_dma_pinned() and page_mkclean()".

 - More cleanup from David Hildenbrand, this time in the series
   "mm/memory_hotplug: use PageOffline() instead of PageReserved() for
   !ZONE_DEVICE". It "enlightens memory hotplug more about PageOffline()
   pages" and permits the removal of some virtio-mem hacks.

 - Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
   __folio_add_anon_rmap()" is a cleanup to the anon folio handling in
   preparation for mTHP (multisize THP) swapin.

 - Kefeng Wang's series "mm: improve clear and copy user folio"
   implements more folio conversions, this time in the area of large
   folio userspace copying.

 - The series "Docs/mm/damon/maintaier-profile: document a mailing tool
   and community meetup series" tells people how to get better involved
   with other DAMON developers. From SeongJae Park.

 - A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
   that.

 - David Hildenbrand sends along more cleanups, this time against the
   migration code. The series is "mm/migrate: move NUMA hinting fault
   folio isolation + checks under PTL".

 - Jan Kara has found quite a lot of strangenesses and minor errors in
   the readahead code. He addresses this in the series "mm: Fix various
   readahead quirks".

 - SeongJae Park's series "selftests/damon: test DAMOS tried regions and
   {min,max}_nr_regions" adds features and addresses errors in DAMON's
   self testing code.

 - Gavin Shan has found a userspace-triggerable WARN in the pagecache
   code. The series "mm/filemap: Limit page cache size to that supported
   by xarray" addresses this. The series is marked cc:stable.

 - Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
   and cleanup" cleans up and slightly optimizes KSM.

 - Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
   code motion. The series (which also makes the memcg-v1 code
   Kconfigurable) are "mm: memcg: separate legacy cgroup v1 code and put
   under config option" and "mm: memcg: put cgroup v1-specific memcg
   data under CONFIG_MEMCG_V1"

 - Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
   adds an additional feature to this cgroup-v2 control file.

 - The series "Userspace controls soft-offline pages" from Jiaqi Yan
   permits userspace to stop the kernel's automatic treatment of
   excessive correctable memory errors. In order to permit userspace to
   monitor and handle this situation.

 - Kefeng Wang's series "mm: migrate: support poison recover from
   migrate folio" teaches the kernel to appropriately handle migration
   from poisoned source folios rather than simply panicing.

 - SeongJae Park's series "Docs/damon: minor fixups and improvements"
   does those things.

 - In the series "mm/zsmalloc: change back to per-size_class lock"
   Chengming Zhou improves zsmalloc's scalability and memory
   utilization.

 - Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
   pinning memfd folios" makes the GUP code use FOLL_PIN rather than
   bare refcount increments. So these paes can first be moved aside if
   they reside in the movable zone or a CMA block.

 - Andrii Nakryiko has added a binary ioctl()-based API to
   /proc/pid/maps for much faster reading of vma information. The series
   is "query VMAs from /proc/<pid>/maps".

 - In the series "mm: introduce per-order mTHP split counters" Lance
   Yang improves the kernel's presentation of developer information
   related to multisize THP splitting.

 - Michael Ellerman has developed the series "Reimplement huge pages
   without hugepd on powerpc (8xx, e500, book3s/64)". This permits
   userspace to use all available huge page sizes.

 - In the series "revert unconditional slab and page allocator fault
   injection calls" Vlastimil Babka removes a performance-affecting and
   not very useful feature from slab fault injection.

* tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (411 commits)
  mm/mglru: fix ineffective protection calculation
  mm/zswap: fix a white space issue
  mm/hugetlb: fix kernel NULL pointer dereference when migrating hugetlb folio
  mm/hugetlb: fix possible recursive locking detected warning
  mm/gup: clear the LRU flag of a page before adding to LRU batch
  mm/numa_balancing: teach mpol_to_str about the balancing mode
  mm: memcg1: convert charge move flags to unsigned long long
  alloc_tag: fix page_ext_get/page_ext_put sequence during page splitting
  lib: reuse page_ext_data() to obtain codetag_ref
  lib: add missing newline character in the warning message
  mm/mglru: fix overshooting shrinker memory
  mm/mglru: fix div-by-zero in vmpressure_calc_level()
  mm/kmemleak: replace strncpy() with strscpy()
  mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC
  mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB
  mm: ignore data-race in __swap_writepage
  hugetlbfs: ensure generic_hugetlb_get_unmapped_area() returns higher address than mmap_min_addr
  mm: shmem: rename mTHP shmem counters
  mm: swap_state: use folio_alloc_mpol() in __read_swap_cache_async()
  mm/migrate: putback split folios when numa hint migration fails
  ...
 2024-07-21 17:15:46 -07:00
Jocelyn Falempe
d20a9f568f fbcon: Add an option to disable fbcon in panic 
This is required to avoid conflict between DRM_PANIC, and fbcon. If
a drm device already handle panic with drm_panic, it should set
the skip_panic field in fb_info, so that fbcon will stay quiet, and
not overwrite the panic_screen.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240717090102.968152-3-jfalempe@redhat.com
 2024-07-19 11:38:23 +02:00
Linus Torvalds
cb273eb7c8 fbdev fixes and cleanups for 6.11-rc1: 
- Detect VGA compatibility from VESA attributes [Thomas Zimmermann]
 - Make I2C terminology more inclusive in smscufx and viafb [Easwar Hariharan]
 - Add lots of missing MODULE_DESCRIPTION() macros [Jeff Johnson]
 - Logo code cleanups [Geert Uytterhoeven]
 - Minor fixes by Chen Ni, Kuninori Morimoto, Uwe Kleine-König and Christophe Jaillett
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Merge tag 'fbdev-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:

 - Detect VGA compatibility from VESA attributes (Thomas Zimmermann)

 - Make I2C terminology more inclusive in smscufx and viafb (Easwar
   Hariharan)

 - Add lots of missing MODULE_DESCRIPTION() macros (Jeff Johnson)

 - Logo code cleanups (Geert Uytterhoeven)

 - Minor fixes by Chen Ni, Kuninori Morimoto, Uwe Kleine-König and
   Christophe Jaillett

* tag 'fbdev-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (21 commits)
  fbdev: viafb: Make I2C terminology more inclusive
  fbdev: smscufx: Make I2C terminology more inclusive
  fbdev: omap2: Return clk_prepare_enable to transfer the error
  fbdev: mmp: Constify struct mmp_overlay_ops
  fbdev: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  video: agp: add remaining missing MODULE_DESCRIPTION() macros
  video: console: add missing MODULE_DESCRIPTION() macros
  fbdev: amifb: add missing MODULE_DESCRIPTION() macro
  fbdev: c2p_planar: add missing MODULE_DESCRIPTION() macro
  fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes
  fbdev: omapfb: use of_graph_get_remote_port()
  fbdev: omapdss: use for_each_endpoint_of_node()
  fbdev: offb: add missing MODULE_DESCRIPTION() macro
  fbdev: vfb: add missing MODULE_DESCRIPTION() macro
  fbdev: macmodes: add missing MODULE_DESCRIPTION() macro
  fbdev: goldfishfb: add missing MODULE_DESCRIPTION() macro
  fbdev: kyro: add missing MODULE_DESCRIPTION() macro
  fbdev: viafb: add missing MODULE_DESCRIPTION() macro
  fbdev: matroxfb: add missing MODULE_DESCRIPTION() macros
  video/logo: Remove linux_serial_image comments
  ...
 2024-07-18 11:47:14 -07:00
Linus Torvalds
b3ce7a3084 drm next for 6.11-rc1: 
core:
 - deprecate DRM data and return 0 date
 - connector: Create a set of helpers to help with HDMI support
 - Remove driver owner assignments
 - Allow more drivers to compile with COMPILE_TEST
 - Conversions to drm_edid
 - Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
 - Remove drm_mm_replace_node
 - print: Add a drm prefix to warn level messages too, remove
          ___drm_dbg, consolidate prefix handling
 - New monochrome TV mode variant
 
 ttm:
 - improve number of page faults on some platforms
 - fix test builds under PREEMPT_RT
 - more test coverage
 
 ci:
 - Require a more recent version of mesa,
 - improve farm setup and test generation
 
 dma-buf:
 - warn if reserving 0 fence slots
 - internal API heap enhancements
 
 fbdev:
 - Create memory manager optimized fbdev emulation
 
 panic:
 - Allow to select fonts,
 - improve drm_fb_dma_get_scanout_buffer
 - Allow to dump kmsg to the screen
 
 bridge:
 - Remove redundant checks on bridge->encoder
 - Remove drm_bridge_chain_mode_fixup
 - bridge-connector: Plumb in the new HDMI helper
 - analogix_dp: Various improvements, handle AUX transfers timeout
 - samsung-dsim: Fix timings calculation
 - tc358767: Plenty of small fixes, fix no connector attach, fix clocks
 - sii902x: state validation improvements
 
 panels:
 - Switch panels from register table initialization to proper code
 - Now that the panel code tracks the panel state, remove every
   ad-hoc implementation in the panel drivers
 - More cleanup of prepare / enable state tracking in drivers
 - edp: Drop legacy panel compatibles
 - simple-bridge: Switch to devm_drm_bridge_add
 - New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
   13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0, BOE
   nv110wum-l60, IVO t109nw41, WL-355608-A8, PrimeView PM070WL4,
   Lincoln Technologies LCD197, Ortustech COM35H3P70ULC,
   AUO G104STN01, K&d kd101ne3-40ti
 
 amdgpu:
 - DCN 4.0.x support
 - GC 12.0 support
 - GMC 12.0 support
 - SDMA 7.0 support
 - MES12 support
 - MMHUB 4.1 support
 - GFX12 modifier and DCC support
 - lots of IP fixes/updates
 
 amdkfd:
 - Contiguous VRAM allocations
 - GC 12.0 support
 - SDMA 7.0 support
 - SR-IOV fixes
 - KFD GFX ALU exceptions
 
 i915:
 - Battlemage Xe2 HPD display enablement
 - Panel Replay enabling
 - DP AUX-less ALPM/LOBF
 - Enable link training failure fallback for DP MST links
 - CMRR (Content Match Refresh Rate) enabling
 - Increase ADL-S/ADL-P/DG2+ max TMDS bitrate to 6 Gbps
 - Enable eDP AUX based HDR backlight
 - Support replaying GPU hangs with captured context image
 - Automate CCS Mode setting during engine resets
 - lots of refactoring
 - Support replaying GPU hangs with captured context image
 - Increase FLR timeout from 3s to 9s
 - Enable w/a 16021333562 for DG2, MTL and ARL [guc]
 
 xe:
 - update MAINATINERS
 - New uapi adding OA functionality to Xe
 - expose l3 bank mask
 - fix display detect on ADL-N
 - runtime PM Fixes
 - Fix silent backmerge issues
 - More prep for SR-IOV
 - HWmon additions
 - per client usage info
 - Rework GPU page fault handling
 - Drop EXEC_QUEUE_FLAG_BANNED
 - Add BMG PCI IDs
 - Scheduler fixes and improvements
 - Rename xe_exec_queue::compute to xe_exec_queue::lr
 - Use ttm_uncached for BO with NEEDS_UC flag
 - Rename xe perf layer as xe observation layer
 - lots of refactoring
 
 radeon:
 - Backlight workaround for iMac
 - Silence UBSAN flex array warnings
 
 msm:
 - Validate registers XML description against schema in CI
 - core/dpu: SM7150 support
 - mdp5: Add support for MSM8937
 - gpu: Add param for userspace to know if raytracing is supported
 - gpu: X185 support (aka gpu in X1 laptop chips)
 - gpu: a505 support
 
 ivpu:
 - hardware scheduler support
 - profiling support
 - improvements to the platform support layer
 - firmware handling improvements
 - clocks/power mgmt improvements
 - scheduler/logging improvements
 
 habanalabs:
 - Gradual sleep in polling memory macro.
 - Reduce Gaudi2 MSI-X interrupt count to 128.
 - Add Gaudi2-D revision support.
 - Add timestamp to CPLD info.
 - Gaudi2: Assume hard-reset by firmware upon MC SEI severe error.
 - Align Gaudi2 interrupt names.
 - Check for errors after preboot is ready.
 - Change habanalabs maintainer and git repo path.
 
 mgag200:
 - refactoring and improvements
 - Add BMC output
 - enable polling
 
 nouveau:
 - add registry command line
 
 v3d:
 - perf counters improvements
 
 zynqmp:
 - irq and debugfs improvements
 
 atmel-hlcdc:
 - Support XLCDC in sam9x7
 
 mipi-dbi:
 - Remove mipi_dbi_machine_little_endian
 - make SPI bits per word configurable
 - support RGB888
 - allow pixel formats to be specified in the DT
 
 sun4i:
 - Rework the blender setup for DE2
 
 panfrost:
 - Enable MT8188 support
 
 vc4:
 - Monochrome TV support
 
 exynos:
 - fix fallback mode regression
 - fix memory leak
 - Use drm_edid_duplicate() instead of kmemdup()
 
 etnaviv:
 - fix i.MX8MP NPU clock gating
 - workaround FE register cdc issues on some cores
 - fix DMA sync handling for cached buffers
 - fix job timeout handling
 - keep TS enabled on MMUv2 cores for improved performance
 
 mediatek:
 - Convert to platform remove callback returning void-
 - Drop chain_mode_fixup call in mode_valid()
 - Fixes the errors of MediaTek display driver found by IGT.
 - Add display support for the MT8365-EVK board
 - Fix bit depth overwritten for mtk_ovl_set bit_depth()
 - Fix possible_crtcs calculation
 - Fix spurious kfree()
 
 ast:
 - refactor mode setting code
 
 stm:
 - Add LVDS support
 - DSI PHY updates
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Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "There's a lot of stuff in here, amd, i915 and xe have new platform
  work, lots of core rework around EDID handling, some new COMPILE_TEST
  options, maintainer changes and a lots of other stuff. Summary:

  core:
   - deprecate DRM data and return 0 date
   - connector: Create a set of helpers to help with HDMI support
   - Remove driver owner assignments
   - Allow more drivers to compile with COMPILE_TEST
   - Conversions to drm_edid
   - Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
   - Remove drm_mm_replace_node
   - print: Add a drm prefix to warn level messages too, remove
            ___drm_dbg, consolidate prefix handling
   - New monochrome TV mode variant

  ttm:
   - improve number of page faults on some platforms
   - fix test builds under PREEMPT_RT
   - more test coverage

  ci:
   - Require a more recent version of mesa
   - improve farm setup and test generation

  dma-buf:
   - warn if reserving 0 fence slots
   - internal API heap enhancements

  fbdev:
   - Create memory manager optimized fbdev emulation

  panic:
   - Allow to select fonts
   - improve drm_fb_dma_get_scanout_buffer
   - Allow to dump kmsg to the screen

  bridge:
   - Remove redundant checks on bridge->encoder
   - Remove drm_bridge_chain_mode_fixup
   - bridge-connector: Plumb in the new HDMI helper
   - analogix_dp: Various improvements, handle AUX transfers timeout
   - samsung-dsim: Fix timings calculation
   - tc358767: Plenty of small fixes, fix no connector attach, fix
               clocks
   - sii902x: state validation improvements

  panels:
   - Switch panels from register table initialization to proper code
   - Now that the panel code tracks the panel state, remove every ad-hoc
     implementation in the panel drivers
   - More cleanup of prepare / enable state tracking in drivers
   - edp: Drop legacy panel compatibles
   - simple-bridge: Switch to devm_drm_bridge_add
   - New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
                 13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0,
                 BOE nv110wum-l60, IVO t109nw41, WL-355608-A8, PrimeView
                 PM070WL4, Lincoln Technologies LCD197, Ortustech
                 COM35H3P70ULC, AUO G104STN01, K&d kd101ne3-40ti

  amdgpu:
   - DCN 4.0.x support
   - GC 12.0 support
   - GMC 12.0 support
   - SDMA 7.0 support
   - MES12 support
   - MMHUB 4.1 support
   - GFX12 modifier and DCC support
   - lots of IP fixes/updates

  amdkfd:
   - Contiguous VRAM allocations
   - GC 12.0 support
   - SDMA 7.0 support
   - SR-IOV fixes
   - KFD GFX ALU exceptions

  i915:
   - Battlemage Xe2 HPD display enablement
   - Panel Replay enabling
   - DP AUX-less ALPM/LOBF
   - Enable link training failure fallback for DP MST links
   - CMRR (Content Match Refresh Rate) enabling
   - Increase ADL-S/ADL-P/DG2+ max TMDS bitrate to 6 Gbps
   - Enable eDP AUX based HDR backlight
   - Support replaying GPU hangs with captured context image
   - Automate CCS Mode setting during engine resets
   - lots of refactoring
   - Support replaying GPU hangs with captured context image
   - Increase FLR timeout from 3s to 9s
   - Enable w/a 16021333562 for DG2, MTL and ARL [guc]

  xe:
   - update MAINATINERS
   - New uapi adding OA functionality to Xe
   - expose l3 bank mask
   - fix display detect on ADL-N
   - runtime PM Fixes
   - Fix silent backmerge issues
   - More prep for SR-IOV
   - HWmon additions
   - per client usage info
   - Rework GPU page fault handling
   - Drop EXEC_QUEUE_FLAG_BANNED
   - Add BMG PCI IDs
   - Scheduler fixes and improvements
   - Rename xe_exec_queue::compute to xe_exec_queue::lr
   - Use ttm_uncached for BO with NEEDS_UC flag
   - Rename xe perf layer as xe observation layer
   - lots of refactoring

  radeon:
   - Backlight workaround for iMac
   - Silence UBSAN flex array warnings

  msm:
   - Validate registers XML description against schema in CI
   - core/dpu: SM7150 support
   - mdp5: Add support for MSM8937
   - gpu: Add param for userspace to know if raytracing is supported
   - gpu: X185 support (aka gpu in X1 laptop chips)
   - gpu: a505 support

  ivpu:
   - hardware scheduler support
   - profiling support
   - improvements to the platform support layer
   - firmware handling improvements
   - clocks/power mgmt improvements
   - scheduler/logging improvements

  habanalabs:
   - Gradual sleep in polling memory macro
   - Reduce Gaudi2 MSI-X interrupt count to 128
   - Add Gaudi2-D revision support
   - Add timestamp to CPLD info
   - Gaudi2: Assume hard-reset by firmware upon MC SEI severe error
   - Align Gaudi2 interrupt names
   - Check for errors after preboot is ready
   - Change habanalabs maintainer and git repo path

  mgag200:
   - refactoring and improvements
   - Add BMC output
   - enable polling

  nouveau:
   - add registry command line

  v3d:
   - perf counters improvements

  zynqmp:
   - irq and debugfs improvements

  atmel-hlcdc:
   - Support XLCDC in sam9x7

  mipi-dbi:
   - Remove mipi_dbi_machine_little_endian
   - make SPI bits per word configurable
   - support RGB888
   - allow pixel formats to be specified in the DT

  sun4i:
   - Rework the blender setup for DE2

  panfrost:
   - Enable MT8188 support

  vc4:
   - Monochrome TV support

  exynos:
   - fix fallback mode regression
   - fix memory leak
   - Use drm_edid_duplicate() instead of kmemdup()

  etnaviv:
   - fix i.MX8MP NPU clock gating
   - workaround FE register cdc issues on some cores
   - fix DMA sync handling for cached buffers
   - fix job timeout handling
   - keep TS enabled on MMUv2 cores for improved performance

  mediatek:
   - Convert to platform remove callback returning void-
   - Drop chain_mode_fixup call in mode_valid()
   - Fixes the errors of MediaTek display driver found by IGT
   - Add display support for the MT8365-EVK board
   - Fix bit depth overwritten for mtk_ovl_set bit_depth()
   - Fix possible_crtcs calculation
   - Fix spurious kfree()

  ast:
   - refactor mode setting code

  stm:
   - Add LVDS support
   - DSI PHY updates"

* tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel: (2501 commits)
  drm/amdgpu/mes12: add missing opcode string
  drm/amdgpu/mes11: update opcode strings
  Revert "drm/amd/display: Reset freesync config before update new state"
  drm/omap: Restrict compile testing to PAGE_SIZE less than 64KB
  drm/xe: Drop trace_xe_hw_fence_free
  drm/xe/uapi: Rename xe perf layer as xe observation layer
  drm/amdgpu: remove exp hw support check for gfx12
  drm/amdgpu: timely save bad pages to eeprom after gpu ras reset is completed
  drm/amdgpu: flush all cached ras bad pages to eeprom
  drm/amdgpu: select compute ME engines dynamically
  drm/amd/display: Allow display DCC for DCN401
  drm/amdgpu: select compute ME engines dynamically
  drm/amdgpu/job: Replace DRM_INFO/ERROR logging
  drm/amdgpu: select compute ME engines dynamically
  drm/amd/pm: Ignore initial value in smu response register
  drm/amdgpu: Initialize VF partition mode
  drm/amd/amdgpu: fix SDMA IRQ client ID <-> req mapping
  MAINTAINERS: fix Xinhui's name
  MAINTAINERS: update powerplay and swsmu
  drm/qxl: Pin buffer objects for internal mappings
  ...
 2024-07-18 09:34:02 -07:00
Easwar Hariharan
8b5ea9029b fbdev: viafb: Make I2C terminology more inclusive 
I2C v7, SMBus 3.2, and I3C 1.1.1 specifications have replaced "master/slave"
with more appropriate terms. Inspired by Wolfram's series to fix drivers/i2c/,
fix the terminology for users of I2C_ALGOBIT bitbanging interface, now that
the approved verbiage exists in the specification.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-07-11 12:07:48 +02:00
Easwar Hariharan
3cf12cabc3 fbdev: smscufx: Make I2C terminology more inclusive 
I2C v7, SMBus 3.2, and I3C 1.1.1 specifications have replaced "master/slave"
with more appropriate terms. Inspired by Wolfram's series to fix drivers/i2c/,
fix the terminology for users of I2C_ALGOBIT bitbanging interface, now that
the approved verbiage exists in the specification.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Signed-off-by: Helge Deller <deller@gmx.de>
 2024-07-11 12:07:48 +02:00
Thomas Zimmermann
1df5aa3754 backlight: sky81452-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-18-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
22f8a85ef0 backlight: rave-sp-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-17-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
eb1c4b6ddd backlight: pwm-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-16-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
eca6b3ddfc backlight: pcf50633-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-15-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
d4db2f1934 backlight: pandora-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-14-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
c2d9c4934b backlight: mp3309c: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-13-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
761c83910b backlight: lm3533-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-12-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
814d3e8200 backlight: led-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-11-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
def5831f09 backlight: ktd253-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-10-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
cebc25971f backlight: kb3886-bl: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-9-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
6910d19bb8 backlight: journada_bl: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-8-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
b6675c5947 backlight: ipaq-micro-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-7-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
ef51815c5f backlight: gpio-backlight: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-6-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
e263c05191 backlight: corgi-lcd: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Only change the driver's backlight device, but leave the LCD
device as-is.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-5-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
1adf98242e backlight: ams369fb06: Use backlight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-4-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Thomas Zimmermann
26dcf62333 backlight: aat2870-backlight: Use blacklight power constants 
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240624152033.25016-3-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2024-07-04 16:45:25 +01:00
Kefeng Wang
a929e0d10f mm: remove page_mkclean() 
There are no more users of page_mkclean(), remove it and update the
document and comment.

Link: https://lkml.kernel.org/r/20240604114822.2089819-5-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2024-07-03 19:30:17 -07:00