linux.git/drivers/gpu/drm, branch master Linux kernel source tree Merge tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 2026-08-19T02:40:29+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-08-19T02:40:29+00:00 368cf60c36a3a311474de08e52dc6314df3b06ce Pull SoC driver updates from Arnd Bergmann: "The SoC driver changes once more consist of many small fixes and cleanups, that are to a large part the result of automated testing. On platform specific drivers, this includes SoC specific code for xilinx, freescale/nxp, qualcomm, TI, aspeed, omap, tegra, samsung, rockchip, renesas, ixp4xx. In firmware drivers, we see a similar picture for SCMI and qcomtee. Aside from these, we see actual new hardware support in a few areas: - The Apple platform gets a new driver for low power states - Updates to Qualcomm platform drivers add several new hardware specific features and additional SoCs. - Amlogic SoC support for A1 and T7 is added - The Mediatek MMSYS driver is refactored as a cleanup" * tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (157 commits) soc: qcom: make QCOM_PDR_MSG selectable soc: qcom: ubwc: Fix missing include soc: qcom: ubwc: Fix link error when QCOM_SMEM=n media: iris: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM drm/msm: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM dt-bindings: arm: qcom,ids: Add SoC ID for Snapdragon SDM 850 firmware: xilinx: Clear firmware notifiers across kexec transitions firmware: xilinx: Release all peripheral devices from firmware firmware: xilinx: Add support to clear EL3 PM state firmware: xilinx: Propagate actual error from feature check firmware: xilinx: Use TF-A feature check for TF-A-specific APIs bus: fsl-mc: drop unused assignment of acpi_device_id::driver_data soc: fsl: qe: check platform_driver_register() in qe_ic_of_init() phy: lynx-10g: use RCW override procedure for dynamic protocol change soc: fsl: guts: implement the RCW override procedure dt-bindings: fsl: layerscape-dcfg: define DCFG_DCSR region soc: fsl: guts: make fsl_soc_data available after fsl_guts_init() soc: fsl: guts: make it easier to determine on which SoC we are running soc: fsl: guts: add a central fsl_guts_read() function soc: fsl: guts: add a global structure to hold state ... 
Pull SoC driver updates from Arnd Bergmann:
 "The SoC driver changes once more consist of many small fixes and
  cleanups, that are to a large part the result of automated testing.

  On platform specific drivers, this includes SoC specific code for
  xilinx, freescale/nxp, qualcomm, TI, aspeed, omap, tegra, samsung,
  rockchip, renesas, ixp4xx. In firmware drivers, we see a similar
  picture for SCMI and qcomtee.

  Aside from these, we see actual new hardware support in a few areas:

   - The Apple platform gets a new driver for low power states

   - Updates to Qualcomm platform drivers add several new hardware
     specific features and additional SoCs.

   - Amlogic SoC support for A1 and T7 is added

   - The Mediatek MMSYS driver is refactored as a cleanup"

* tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (157 commits)
  soc: qcom: make QCOM_PDR_MSG selectable
  soc: qcom: ubwc: Fix missing include
  soc: qcom: ubwc: Fix link error when QCOM_SMEM=n
  media: iris: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  drm/msm: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  dt-bindings: arm: qcom,ids: Add SoC ID for Snapdragon SDM 850
  firmware: xilinx: Clear firmware notifiers across kexec transitions
  firmware: xilinx: Release all peripheral devices from firmware
  firmware: xilinx: Add support to clear EL3 PM state
  firmware: xilinx: Propagate actual error from feature check
  firmware: xilinx: Use TF-A feature check for TF-A-specific APIs
  bus: fsl-mc: drop unused assignment of acpi_device_id::driver_data
  soc: fsl: qe: check platform_driver_register() in qe_ic_of_init()
  phy: lynx-10g: use RCW override procedure for dynamic protocol change
  soc: fsl: guts: implement the RCW override procedure
  dt-bindings: fsl: layerscape-dcfg: define DCFG_DCSR region
  soc: fsl: guts: make fsl_soc_data available after fsl_guts_init()
  soc: fsl: guts: make it easier to determine on which SoC we are running
  soc: fsl: guts: add a central fsl_guts_read() function
  soc: fsl: guts: add a global structure to hold state
  ...
Merge tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2026-08-19T02:09:42+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-08-19T02:09:42+00:00 5808ac188949d7b49ed9e51f1ffcd096cac57006 Pull x86 cpuid updates from Borislav Petkov: - Get rid of static_cpu_has() - one less API to care about testing CPU features - Unify the handling of CPU core types (performance, efficient, etc) by mapping the vendor-specific types to Linux ones - Continuation of the work of Ahmed Darwish to centralize CPUID leaf representation * tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/CPU: Rename struct cpuid_read_output to struct cpuid_output x86/cpu/scattered: Sort it properly x86/cpu: Use parsed CPUID(0x1) x86/lib: Add CPUID(0x1) family and model calculation x86/cpu: Use parsed CPUID(0x0) x86/cpu/transmeta: Rescan CPUID(0x1) after modifying capabilities x86/topology: Add TOPO_CPU_TYPE_LOW_POWER x86/topology: Name the AMD core-type values x86/topo: Map vendor CPU types to generic Linux such types x86/bugs: Don't use cpu-type matching in cpu_vuln_blacklist x86/cpu: Hide and rename static_cpu_has() 
Pull x86 cpuid updates from Borislav Petkov:

 - Get rid of static_cpu_has() - one less API to care about testing CPU
   features

 - Unify the handling of CPU core types (performance, efficient, etc) by
   mapping the vendor-specific types to Linux ones

 - Continuation of the work of Ahmed Darwish to centralize CPUID leaf
   representation

* tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU: Rename struct cpuid_read_output to struct cpuid_output
  x86/cpu/scattered: Sort it properly
  x86/cpu: Use parsed CPUID(0x1)
  x86/lib: Add CPUID(0x1) family and model calculation
  x86/cpu: Use parsed CPUID(0x0)
  x86/cpu/transmeta: Rescan CPUID(0x1) after modifying capabilities
  x86/topology: Add TOPO_CPU_TYPE_LOW_POWER
  x86/topology: Name the AMD core-type values
  x86/topo: Map vendor CPU types to generic Linux such types
  x86/bugs: Don't use cpu-type matching in cpu_vuln_blacklist
  x86/cpu: Hide and rename static_cpu_has()
drm/msm: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM 2026-08-18T09:17:45+00:00 Daniel Baluta daniel.baluta@nxp.com 2026-08-17T12:35:38+00:00 a1ee4bb25b3bd97c1f46fe2968263b54f0be3c19 QCOM_UBWC_CONFIG is about to depend on QCOM_SMEM. Guard the DRM_MSM select with 'if ARCH_QCOM && QCOM_SMEM', and add 'depends on QCOM_SMEM || QCOM_SMEM=n' so a built-in driver is never selected against a missing or modular SMEM. Fixes: 1b445022d1d0 ("soc: qcom: ubwc: Get HBB from SMEM") Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Tested-by: Nathan Chancellor <nathan@kernel.org> # build Signed-off-by: Arnd Bergmann <arnd@arndb.de> 
QCOM_UBWC_CONFIG is about to depend on QCOM_SMEM. Guard the DRM_MSM
select with 'if ARCH_QCOM && QCOM_SMEM', and add
'depends on QCOM_SMEM || QCOM_SMEM=n' so a built-in driver is never
selected against a missing or modular SMEM.

Fixes: 1b445022d1d0 ("soc: qcom: ubwc: Get HBB from SMEM")
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Merge tag 'drm-xe-fixes-2026-08-13' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes 2026-08-14T05:41:40+00:00 Dave Airlie airlied@redhat.com 2026-08-14T04:24:11+00:00 b2601e783a2e54f6963d65f0d94f96d96c146a3a Driver Changes: - Fix DPT Allocation paths (Maarten) - Fixes around UM queue BO (Jia) - Order ring writes before ring tail updates (Matthew Brost) - Add termination on resume for PXP (Daniele) - Document Sentinel and make CTX_TIMESTAMP read TOCTOU-safe (Gajendra) - Fix sync entry leak on OA config emit failure (Linmao Li) - Check managed mutex initilization errors (Linmao Li) - Fix min frequency setting (Vinay) - Fix xe_device_probe error path (Raag) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com> Link: https://patch.msgid.link/an4ZogmPqP2Xtfx3@fedora 
Driver Changes:
- Fix DPT Allocation paths (Maarten)
- Fixes around UM queue BO (Jia)
- Order ring writes before ring tail updates (Matthew Brost)
- Add termination on resume for PXP (Daniele)
- Document Sentinel and make CTX_TIMESTAMP read TOCTOU-safe (Gajendra)
- Fix sync entry leak on OA config emit failure (Linmao Li)
- Check managed mutex initilization errors (Linmao Li)
- Fix min frequency setting (Vinay)
- Fix xe_device_probe error path (Raag)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/an4ZogmPqP2Xtfx3@fedora
Merge tag 'drm-misc-fixes-2026-08-13' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes 2026-08-14T03:19:08+00:00 Dave Airlie airlied@redhat.com 2026-08-14T03:19:02+00:00 7581e7c73e8fbea7c885583146fbe09a8462a25d drm-misc-fixes for v7.3: - Revert fair scheduler patches and mark fair policy as experimental due to reported regressions. - Fix OOB read in connector/hdmi infoframe. - Handle invalid scaling parameters and empty messages in log target. - Skip attempting to populate unmapped pages in amdxdna. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/a9b38792-bdd0-42da-a46a-7a048c26c0c2@linux.intel.com 
drm-misc-fixes for v7.3:
- Revert fair scheduler patches and mark fair policy as experimental due
  to reported regressions.
- Fix OOB read in connector/hdmi infoframe.
- Handle invalid scaling parameters and empty messages in log target.
- Skip attempting to populate unmapped pages in amdxdna.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/a9b38792-bdd0-42da-a46a-7a048c26c0c2@linux.intel.com
drm/log: Fix infinite loop when scale is too large for display 2026-08-13T13:49:40+00:00 Shixiong Ou oushixiong@kylinos.cn 2026-07-29T08:48:15+00:00 f4f2bba28df9b9aaa00262a462139dbbcdc38d9f When scale is large enough that scaled_font exceeds the display dimensions, rows or columns become 0. A columns value of 0 causes an infinite loop in drm_log_draw_kmsg_record() because the loop never decrements len. Check for zero rows/columns in drm_log_setup_modeset() and return an error, cleaning up the already allocated buffer to avoid a leak. Fixes: 8a4b913df427 ("drm/log: Add integer scaling support") Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20260729084815.692944-1-oushixiong1025@163.com Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> 
When scale is large enough that scaled_font exceeds the display
dimensions, rows or columns become 0. A columns value of 0 causes
an infinite loop in drm_log_draw_kmsg_record() because the loop
never decrements len.

Check for zero rows/columns in drm_log_setup_modeset() and return
an error, cleaning up the already allocated buffer to avoid a leak.

Fixes: 8a4b913df427 ("drm/log: Add integer scaling support")
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260729084815.692944-1-oushixiong1025@163.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
drm/log: Fix out-of-bounds read on empty message length 2026-08-13T13:47:50+00:00 Shixiong Ou oushixiong@kylinos.cn 2026-07-29T08:45:17+00:00 60baa179ed1333535f6e2da4133511db55278ee4 drm_log_draw_kmsg_record() accesses s[len - 1] to strip the trailing newline, but len is unsigned int. If len is 0, the subtraction wraps to UINT_MAX, causing an out-of-bounds read. Add an early return when len is 0. Fixes: 25e2c2a3eff5 ("drm/log: Color the timestamp, to improve readability") Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20260729084520.688087-1-oushixiong1025@163.com Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> 
drm_log_draw_kmsg_record() accesses s[len - 1] to strip the trailing
newline, but len is unsigned int. If len is 0, the subtraction wraps
to UINT_MAX, causing an out-of-bounds read.

Add an early return when len is 0.

Fixes: 25e2c2a3eff5 ("drm/log: Color the timestamp, to improve readability")
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260729084520.688087-1-oushixiong1025@163.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
drm/log: Fix division by zero when scale module parameter is 0 2026-08-13T13:46:50+00:00 Shixiong Ou oushixiong@kylinos.cn 2026-07-30T01:44:40+00:00 921ac6cb066d09b5765db892d0db0ffaffa98767 The scale module parameter can be set to 0 via kernel command line. When scale is 0, scaled_font_h and scaled_font_w become 0, causing a division by zero in the rows/columns calculation. Since the scale module parameter is read-only (0444 permissions), it cannot be changed at runtime via sysfs. Clamp it to 1 once in drm_log_register(). Fixes: 8a4b913df427 ("drm/log: Add integer scaling support") Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20260730014440.66323-1-oushixiong1025@163.com Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> 
The scale module parameter can be set to 0 via kernel command line.
When scale is 0, scaled_font_h and scaled_font_w become 0, causing
a division by zero in the rows/columns calculation.

Since the scale module parameter is read-only (0444 permissions), it
cannot be changed at runtime via sysfs. Clamp it to 1 once in
drm_log_register().

Fixes: 8a4b913df427 ("drm/log: Add integer scaling support")
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260730014440.66323-1-oushixiong1025@163.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
drm/xe: Fix xe_device_probe() failure 2026-08-13T12:56:34+00:00 Raag Jadav raag.jadav@intel.com 2026-08-10T12:38:20+00:00 ef526d122b62af5afa437f095aa6661a953676c4 Currently, xe_device_probe() jumps to err_unregister_display label in case of failure except for its last call, which directly returns the error without required cleanup handling. This results in stale drm device that isn't cleaned up on unwind. Fix it. [ 810.194180] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/renderD128' [ 810.194183] CPU: 9 UID: 0 PID: 5616 Comm: modprobe Kdump: loaded Tainted: G S U E 7.2.0-rc2-xe #382 PREEMPT(full) [ 810.194185] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER, [E]=UNSIGNED_MODULE [ 810.194186] Hardware name: ASUS System Product Name/PRIME Z790-P WIFI, BIOS 1805 10/30/2024 [ 810.194186] Call Trace: [ 810.194187] <TASK> [ 810.194188] dump_stack_lvl+0xe0/0x100 [ 810.194195] dump_stack+0x14/0x20 [ 810.194197] sysfs_warn_dup+0x5f/0x80 [ 810.194204] sysfs_create_dir_ns+0xbe/0xd0 [ 810.194210] kobject_add_internal+0xbc/0x2b0 [ 810.194215] kobject_add+0x7c/0xe0 [ 810.194220] ? get_device_parent+0xcf/0x1e0 [ 810.194227] device_add+0xe3/0x870 [ 810.194231] ? __pfx_drm_gem_name_info+0x10/0x10 [drm] [ 810.194280] drm_minor_register+0x73/0x130 [drm] [ 810.194322] drm_dev_register+0x76/0x2a0 [drm] Cc: stable@vger.kernel.org Fixes: da3799c97572 ("drm/xe: Use GuC to do GGTT invalidations for the GuC firmware") Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/20260810123821.105605-1-raag.jadav@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> (cherry picked from commit 5ce3042c67c539480882567137ff8d56118885d6) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> 
Currently, xe_device_probe() jumps to err_unregister_display label in case
of failure except for its last call, which directly returns the error
without required cleanup handling. This results in stale drm device that
isn't cleaned up on unwind. Fix it.

[  810.194180] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/renderD128'
[  810.194183] CPU: 9 UID: 0 PID: 5616 Comm: modprobe Kdump: loaded Tainted: G S   U      E       7.2.0-rc2-xe #382 PREEMPT(full)
[  810.194185] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER, [E]=UNSIGNED_MODULE
[  810.194186] Hardware name: ASUS System Product Name/PRIME Z790-P WIFI, BIOS 1805 10/30/2024
[  810.194186] Call Trace:
[  810.194187]  <TASK>
[  810.194188]  dump_stack_lvl+0xe0/0x100
[  810.194195]  dump_stack+0x14/0x20
[  810.194197]  sysfs_warn_dup+0x5f/0x80
[  810.194204]  sysfs_create_dir_ns+0xbe/0xd0
[  810.194210]  kobject_add_internal+0xbc/0x2b0
[  810.194215]  kobject_add+0x7c/0xe0
[  810.194220]  ? get_device_parent+0xcf/0x1e0
[  810.194227]  device_add+0xe3/0x870
[  810.194231]  ? __pfx_drm_gem_name_info+0x10/0x10 [drm]
[  810.194280]  drm_minor_register+0x73/0x130 [drm]
[  810.194322]  drm_dev_register+0x76/0x2a0 [drm]

Cc: stable@vger.kernel.org
Fixes: da3799c97572 ("drm/xe: Use GuC to do GGTT invalidations for the GuC firmware")
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260810123821.105605-1-raag.jadav@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 5ce3042c67c539480882567137ff8d56118885d6)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
drm/xe: Fix a bug in pc_adjust_freq_bounds() 2026-08-13T12:56:34+00:00 Vinay Belgaumkar vinay.belgaumkar@intel.com 2026-08-05T23:46:49+00:00 5cf82c8cec90056511eb881a267aab6101eaf57a In cases where min frequency was actually greater than BMG_MIN_FREQ, we were not using the updated min frequency as there was a missing call to pc_action_query_task_state() between the two settings of min frequency. Since we know what min_freq was last set, use that cached value while comparing to BMG_MIN_FREQ to fix this issue. v2: pc->freq_ready is not set until after pc_adjust_freq_bounds(). Stay with pc_action_query_task_state() instead. v3: Update commit message (Stuart) Fixes: bdde16c9ac5c ("drm/xe/bmg: Update Wa_14022085890") Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Reviewed-by: Stuart Summers <stuart.summers@intel.com> Link: https://patch.msgid.link/20260805234649.2076384-1-vinay.belgaumkar@intel.com (cherry picked from commit a2c2d2b13a9ea9494d2d76b46273833111749507) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> 
In cases where min frequency was actually greater than BMG_MIN_FREQ,
we were not using the updated min frequency as there was a missing
call to pc_action_query_task_state() between the two settings of
min frequency. Since we know what min_freq was last set, use that
cached value while comparing to BMG_MIN_FREQ to fix this issue.

v2: pc->freq_ready is not set until after pc_adjust_freq_bounds(). Stay
with pc_action_query_task_state() instead.

v3: Update commit message (Stuart)

Fixes: bdde16c9ac5c ("drm/xe/bmg: Update Wa_14022085890")
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://patch.msgid.link/20260805234649.2076384-1-vinay.belgaumkar@intel.com
(cherry picked from commit a2c2d2b13a9ea9494d2d76b46273833111749507)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>