Commit Graph

1427871 Commits

Author SHA1 Message Date
Dave Airlie
5f0a63f81a drm-misc-next for v7.1:
Cross-subsystem Changes:
 
 dma-buf:
 - Prepare for compile-time concurrency analysis
 
 Core Changes:
 
 buddy:
 - Improve assert testing
 
 sched:
 - Fix race condition in drm_sched_fini()
 - Mark slow tests
 
 Driver Changes:
 
 bridge:
 - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings
 
 gma500:
 - Use DRM client buffer for fbdev framebuffer
 
 gud:
 - Test for imported buffers with helper
 
 imagination:
 - Fix power domain handling
 
 ivpu:
 - Update boot API to v3.29.4
 - Limit per-user number of doorbells and contexts
 
 nouveau:
 - Test for imported buffers with helper
 
 panel:
 - panel-edp: Fix timings for BOE NV140WUM-N64
 
 panfrost:
 - Test for imported buffers with helper
 
 panthor:
 - Test for imported buffers with helper
 
 vc4:
 - Test for imported buffers with helper
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Merge tag 'drm-misc-next-2026-03-05' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v7.1:

Cross-subsystem Changes:

dma-buf:
- Prepare for compile-time concurrency analysis

Core Changes:

buddy:
- Improve assert testing

sched:
- Fix race condition in drm_sched_fini()
- Mark slow tests

Driver Changes:

bridge:
- waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings

gma500:
- Use DRM client buffer for fbdev framebuffer

gud:
- Test for imported buffers with helper

imagination:
- Fix power domain handling

ivpu:
- Update boot API to v3.29.4
- Limit per-user number of doorbells and contexts

nouveau:
- Test for imported buffers with helper

panel:
- panel-edp: Fix timings for BOE NV140WUM-N64

panfrost:
- Test for imported buffers with helper

panthor:
- Test for imported buffers with helper

vc4:
- Test for imported buffers with helper

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260305081140.GA171266@linux.fritz.box
2026-03-09 06:07:03 +10:00
Dave Airlie
057ad0ef4d amd-drm-next-7.1-2026-03-04:
amdgpu:
 - FAMS2 updates
 - Refactor DC I2C
 - Rework ttm handling to allow for multiple engines
 - UserQ updates
 - Ring reset improvements
 - DC DCE 6.x cleanups
 - DC support for NUTMEG and TRAVIS DP bridges
 - Enable DC by default on CIK APUs
 - Add DCN 4.2 support
 - IPS fixes
 - Overlay fixes for DCN4
 - SDMA Limit updates
 - Misc fixes
 - RAS updates
 - Register access callback rework
 - GC 12.1 updates
 
 amdkfd:
 - Misc cleanups
 
 UAPI:
 - UserQ fence IOCTL parameter size fixes.  The change is backwards compatible on LE, but not BE.
   UserQs are still not considered stable and are disabled by default.
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Merge tag 'amd-drm-next-7.1-2026-03-04' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-7.1-2026-03-04:

amdgpu:
- FAMS2 updates
- Refactor DC I2C
- Rework ttm handling to allow for multiple engines
- UserQ updates
- Ring reset improvements
- DC DCE 6.x cleanups
- DC support for NUTMEG and TRAVIS DP bridges
- Enable DC by default on CIK APUs
- Add DCN 4.2 support
- IPS fixes
- Overlay fixes for DCN4
- SDMA Limit updates
- Misc fixes
- RAS updates
- Register access callback rework
- GC 12.1 updates

amdkfd:
- Misc cleanups

UAPI:
- UserQ fence IOCTL parameter size fixes.  The change is backwards compatible on LE, but not BE.
  UserQs are still not considered stable and are disabled by default.

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260304213233.1938311-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-03-09 06:04:21 +10:00
Thomas Zimmermann
d2e20c8951 drm/gud: Test for imported buffers with drm_gem_is_imported()
Instead of testing import_attach for imported GEM buffers, invoke
drm_gem_is_imported() to do the test. The test itself does not change.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Ruben Wauters <rubenru09@aol.com>
Acked-by: Ruben Wauters <rubenru09@aol.com>
Link: https://patch.msgid.link/20260227133113.235940-4-tzimmermann@suse.de
2026-03-05 08:14:09 +01:00
Srinivasan Shanmugam
c5d8df53b6 drm/amdgpu: Fix mutex handling in amdgpu_benchmark_do_move() v3
amdgpu_benchmark_do_move() can exit the loop early if
amdgpu_copy_buffer() or dma_fence_wait() fails.

In the error path, the function jumps to the exit label
without releasing adev->mman.default_entity.lock, which
leaves the mutex held and results in a lock imbalance.

This can block subsequent users of default_entity and
potentially cause deadlocks.

Move the mutex_unlock() to the common exit path so the
lock is released on both success and error returns.

This fixes:
drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c:57 amdgpu_benchmark_do_move()
warn: inconsistent returns '&adev->mman.default_entity.lock'.

v2:
- Drop unrelated initialization of 'r'
- Keep the change focused on the mutex imbalance fix (Pierre).

v3:
- Removed empty line

Fixes: 30f2daedf4 ("drm/amdgpu: add missing lock in amdgpu_benchmark_do_move")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Asad Kamal
8e8f6bda8a drm/amd/pm: Avoid overflow when sorting pp_feature list
pp_features sorting uses int8_t sort_feature[] to store driver
feature enum indices. On newer ASICs the enum index can exceed 127,
causing signed overflow and silently dropping entries from the output.
Switch the array to int16_t so all enum indices are preserved.

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Lijo Lazar
b2e997e6cf drm/amd/pm: Add pm firmware info to dmesg log
Add PMFW info to dmesg log for SMUv13 SOCs. It's helpful as diagnostic
data for some driver load issues.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
sguttula
9b822e26ee drm/amdgpu/psp: Use Indirect access address for GFX to PSP mailbox
The reason the RAP is not granting access to 0x58200 is that
a dedicated RSMU slot would have to be spent for this address range,
and MPASP is close to running out of RSMU slots.

This will help to fix PSP TOC load failure during secureboot.
GFX Driver Need to use indirect access for SMN address regs.

Signed-off-by: sguttula <suresh.guttula@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Tvrtko Ursulin
a95dfb0c78 drm/amdgpu: Remove redundant missing hw ip handling
Now that it is guaranteed there can be no entity if there is no hw ip
block we can remove the open coded protection during CS parsing.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
References: 55414ad5c9 ("drm/amdgpu: error out on entity with no run queue")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Tvrtko Ursulin
3ccdad15ae drm/amdgpu: Reject impossible entities early
Currently there are two different behaviour modes when userspace tries to
operate on not present HW IP blocks. On a machine without UVD, VCE and VPE
blocks, this can be observed for example like this:

$ sudo ./amd_fuzzing --r cs-wait-fuzzing
...
amd_cs_wait_fuzzing DRM_IOCTL_AMDGPU_CTX r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_GFX r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_COMPUTE r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_DMA r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_UVD r -1
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_VCE r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_UVD_ENC r -1
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_VCN_DEC r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_VCN_ENC r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_VCN_JPEG r 0
amd_cs_wait_fuzzing AMDGPU_WAIT_CS AMD_IP_VPE r 0

We can see that UVD returns an errno (-EINVAL) from the CS_WAIT ioctl,
while VCE and VPE return unexpected successes.

The difference stems from the fact the UVD is a load balancing engine
which retains the context, so with a workaround implemented in
amdgpu_ctx_init_entity(), but which does not account for the fact hardware
block may not be present.

This causes a single NULL scheduler to be passed to
drm_sched_entity_init(), which immediately rejects this with -EINVAL.

The not present VCE and VPE cases on the other hand pass zero schedulers
to drm_sched_entity_init(), which is explicitly allowed and results in
unusable entities.

As the UVD case however shows, call paths can handle the errors, so we can
consolidate this into a single path which will always return -EINVAL if
the HW IP block is not present.

We do this by rejecting it early and not calling drm_sched_entity_init()
when there is no backing hardware.

This also removes the need for the drm_sched_entity_init() to handle the
zero schedulers and NULL scheduler cases, which means that we can follow
up by removing the special casing from the DRM scheduler.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
References: f34e8bb7d6 ("drm/sched: fix null-ptr-deref in init entity")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Sunil Khatri
4952189b28 drm/amdgpu/userq: refcount userqueues to avoid any race conditions
To avoid race condition and avoid UAF cases, implement kref
based queues and protect the below operations using xa lock
a. Getting a queue from xarray
b. Increment/Decrement it's refcount

Every time some one want to access a queue, always get via
amdgpu_userq_get to make sure we have locks in place and get
the object if active.

A userqueue is destroyed on the last refcount is dropped which
typically would be via IOCTL or during fini.

v2: Add the missing drop in one the condition in the signal ioclt [Alex]

v3: remove the queue from the xarray first in the free queue ioctl path
    [Christian]

- Pass queue to the amdgpu_userq_put directly.
- make amdgpu_userq_put xa_lock free since we are doing put for each get
  only and final put is done via destroy and we remove the queue from xa
  with lock.
- use userq_put in fini too so cleanup is done fully.

v4: Use xa_erase directly rather than doing load and erase in free
    ioctl. Also remove some of the error logs which could be exploited
    by the user to flood the logs [Christian]

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:56 -05:00
Alysa Liu
c7c573275e drm/amdgpu: Fix use-after-free race in VM acquire
Replace non-atomic vm->process_info assignment with cmpxchg()
to prevent race when parent/child processes sharing a drm_file
both try to acquire the same VM after fork().

Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alysa Liu <Alysa.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:50:44 -05:00
Yang Wang
8de9edb359 drm/amd/pm: remove invalid gpu_metrics.energy_accumulator on smu v13.0.x
v1:
The metrics->EnergyAccumulator field has been deprecated on newer pmfw.

v2:
add smu 13.0.0/13.0.7/13.0.10 support.

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:43:50 -05:00
Gangliang Xie
a4f87a1c30 drm/amd/ras: adapt sync info func for pmfw eeprom
adapt sync info func for pmfw eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:43:46 -05:00
Gangliang Xie
e82f9aac39 drm/amd/ras: add check func for pmfw eeprom
add check func for pmfw eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:43:43 -05:00
Philip Yang
b2d13a41da drm/amdgpu: GFX12.1 scratch memory limit up to 57-bit
The scratch aperture or gmc private aperture in flat memory contains
57 bits of data on gfx v12.1.0 compared to the 32 bits from previous.

Add new helper kfd_init_apertures_v12 for gfx version >= v12.1.0 which
supports 57-bit VA space.

v2:
  - update pdd->scratch_limit (Yu, Lang)
  - update fixes tag (Felix Kuehling)
  - add helper kfd_init_apertures_v12

Fixes: db1882b3ff ("drm/amdkfd: Update LDS, Scratch base for 57bit address")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Lang Yu <lang.yu@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:42:26 -05:00
Gangliang Xie
89b814a34a drm/amd/ras: add initialization func for pmfw eeprom
add initialization func for pmfw eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:42:23 -05:00
Gangliang Xie
72289903a2 drm/amd/ras: adapt page retirement process for pmfw eeprom
read bad page data from pmfw eeprom when retirement
is triggered, use timestamp read from eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:42:20 -05:00
Gangliang Xie
42c46be2ec drm/amd/ras: add read func for pmfw eeprom
add read func for pmfw eeprom, and adapt address converting
for bad pages loaded from pmfw eeprom

v2: change label 'Out' to 'out'

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:42:04 -05:00
Tao Zhou
3972f41bc1 drm/amd/ras: make MCA IPID parse global
add a new IPID parse interface for umc, so we can
implement it for each ASIC, and so we can call it
in other blocks

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:42:00 -05:00
Gangliang Xie
b18475fba3 drm/amd/ras: add append func for pmfw eeprom
add append func for pmfw eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:41:56 -05:00
Gangliang Xie
5042806557 drm/amd/ras: add check safety watermark func for pmfw eeprom
add check safety watermark func for pmfw eeprom

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-04 11:41:43 -05:00
Matt Coster
144d47f905
drm/imagination: Ensure struct pvr_device->power is initialized
When pvr_power_domains_init() handles <=1 power domains, the content of
struct pvr_device->power was previously left uninitialized.

Fixes: e19cc5ab34 ("drm/imagination: Use dev_pm_domain_attach_list()")
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Link: https://patch.msgid.link/20260227-single-domain-power-fixes-v1-3-d37ba0825f7c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2026-03-04 09:56:22 +00:00
Matt Coster
218ea788a6
drm/imagination: Detach pm domains if linking fails
There's a missing call to dev_pm_domain_detach_list() in the error path of
pvr_power_domains_init(); if creating the second stage of device links
fails then the struct dev_pm_domain_list will be left dangling.

Fixes: e19cc5ab34 ("drm/imagination: Use dev_pm_domain_attach_list()")
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Link: https://patch.msgid.link/20260227-single-domain-power-fixes-v1-2-d37ba0825f7c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2026-03-04 09:56:21 +00:00
Matt Coster
713ec926d8
drm/imagination: Check for NULL struct dev_pm_domain_list
While dev_pm_domain_detach_list() itself contains the necessary NULL check,
the access to struct dev_pm_domain_list->num_pds does not and thus faults
on devices with <=1 power domains (where the struct dev_pm_domain_list
machinery is skipped for simplicity).

This can be reproduced on AM625, which produces the following log[1]:

[   10.820056] powervr fd00000.gpu: Direct firmware load for powervr/rogue_33.15.11.3_v1.fw failed with error -2
[   10.831903] powervr fd00000.gpu: [drm] *ERROR* failed to load firmware powervr/rogue_33.15.11.3_v1.fw (err=-2)
...
[   10.844023] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
...
[   11.090162] Call trace:
[   11.092600]  pvr_power_domains_fini+0x18/0xa0 [powervr] (P)
[   11.098218]  pvr_probe+0x100/0x14c [powervr]
[   11.102505]  platform_probe+0x5c/0xa4

Fixes: e19cc5ab34 ("drm/imagination: Use dev_pm_domain_attach_list()")
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/r/c353fdef-9ccd-4a11-a527-ab4a792d8e70@sirena.org.uk/ [1]
Tested-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Link: https://patch.msgid.link/20260227-single-domain-power-fixes-v1-1-d37ba0825f7c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2026-03-04 09:56:21 +00:00
Marek Vasut
fca1142842 drm/bridge: waveshare-dsi: Add support for 1..4 DSI data lanes
Parse the data lane count out of DT. Limit the supported data lanes
to 1..4 which is the maximum available DSI pairs on the connector of
any known panels which may use this bridge. Internally, this bridge
is an ChipOne ICN6211 which loads its register configuration from a
dedicated storage and its I2C does not seem to be accessible. The
ICN6211 also supports up to 4 DSI lanes, so this is a hard limit.

To avoid any breakage on old DTs where the parsing of data lanes from
DT may fail, fall back to the original hard-coded value of 2 lanes and
warn user.

The lane configuration is preconfigured in the bridge for each of the
WaveShare panels. The 13.3" DSI panel works with 4-lane configuration,
others seem to use 2-lane configuration. This is a hardware property,
so the actual count should come from DT.

Reviewed-by: Joseph Guo <qijian.guo@nxp.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patch.msgid.link/20260115024004.660986-2-marek.vasut+renesas@mailbox.org
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-03-03 14:33:20 +01:00
Marek Vasut
2befa6407d dt-bindings: display: bridge: waveshare,dsi2dpi: Document 1..4 DSI lane support
Describe 1..4 DSI lanes as supported. Internally, this bridge is
an ChipOne ICN6211 which loads its register configuration from a
dedicated storage and its I2C does not seem to be accessible. The
ICN6211 supports up to 4 DSI lanes, so this is a hard limit for
this bridge. The lane configuration is preconfigured in the bridge
for each of the WaveShare panels.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260115024004.660986-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-03-03 14:33:20 +01:00
Karol Wachowski
86a14330bf accel/ivpu: Limit number of maximum contexts and doorbells per user
Implement per-user resource limits to prevent resource exhaustion.

Root users can allocate all available contexts (128) and doorbells
(255), while non-root users are limited to half of the available
resources (64 contexts and 127 doorbells respectively).

This prevents scenarios where a single user could monopolize NPU
resources and starve other users on multi-user systems.

Change doorbell ID and command queue ID allocation errors to debug
messages as those are user triggered.

Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Link: https://patch.msgid.link/20260302202207.469442-1-maciej.falkowski@linux.intel.com
2026-03-03 12:54:03 +01:00
Thomas Zimmermann
6716101ae4 Merge drm/drm-next into drm-misc-next
Backmerge fixes from v7.0-rc2 into drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-03-03 10:40:37 +01:00
Thomas Zimmermann
ad595a8aee drm/vc4: Test for imported buffers with drm_gem_is_imported()
Instead of testing import_attach for imported GEM buffers, invoke
drm_gem_is_imported() to do the test. The test itself does not change.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: "Maíra Canal" <mcanal@igalia.com>
Cc: Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://patch.msgid.link/20260227133113.235940-12-tzimmermann@suse.de
2026-03-03 09:58:07 +01:00
Thomas Zimmermann
c70708c53d drm/gma500: Create framebuffers with drm_gem_fb_create()
Replace gma500's internal framebuffer creation with DRM's standard
helper drm_gem_fb_create(). The result is equivalent. Only keep the
existing tests for color depth and pitch alignment.

v2:
- rebase on upstream changes

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patch.msgid.link/20260206133458.226467-6-tzimmermann@suse.de
2026-03-03 09:28:56 +01:00
Thomas Zimmermann
581a5bfe75 drm/gma500: fbdev: Use a DRM client buffer
Replace the internal DRM framebuffer with a DRM client buffer. The
client buffer allocates the DRM framebuffer on a file and also uses
GEM object handles via the regular ADDFB2 interfaces. This unifies
framebuffer allocation for clients in user space and gma500's internal
fbdev emulation.

Also simplify the clean-up side of the fbdev emulation.

Later patches will allow for streamlining gma500's framebuffer code and
DRM's fbdev emulation in general.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patch.msgid.link/20260206133458.226467-5-tzimmermann@suse.de
2026-03-03 09:28:53 +01:00
Thomas Zimmermann
aaea2359a6 drm/gma500: fbdev: Calculate buffer geometry with format helpers
Replace the geometry and size calculation in gma500's fbdev emulation
with DRM format helpers. This consists of 4CC lookup from the fbdev
parameters, format loockup, pitch calculation and size calculation.
Then allocate the GEM buffer object for the framebuffer memory from
the calculated size.

As before, fallback to 16-bit colors if the stolen memory is insufficient
for 32-bit colors. But look at the result from psb_gem_create() instead
of guessing before the allocation. The new method is more reliable when
others allocate from stolen video memory (e.g., cursors).

Set up mode_cmd with the calculated values just before allocating the
framebuffer. This code will later be replaced with a DRM client buffer.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patch.msgid.link/20260206133458.226467-4-tzimmermann@suse.de
2026-03-03 09:28:50 +01:00
Thomas Zimmermann
bbc1d21054 drm/gma500: fbdev: Set framebuffer size to GEM object size
Framebuffer emulation sets the size of the available memory to the
value that has been requested. As the allocated GEM buffer object
acts as full framebuffer memory, set the size to the value of the
actually allocated buffer.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patch.msgid.link/20260206133458.226467-3-tzimmermann@suse.de
2026-03-03 09:28:47 +01:00
Thomas Zimmermann
e0afbfe321 drm/client: Export drm_client_buffer_create()
The helper drm_client_buffer_create() will be required by various
drivers for fbdev emulation.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patch.msgid.link/20260206133458.226467-2-tzimmermann@suse.de
2026-03-03 09:28:31 +01:00
Marek Vasut
b8eb97ead8 drm/bridge: waveshare-dsi: Register and attach our DSI device at probe
In order to avoid any probe ordering issue, the best practice is to move
the secondary MIPI-DSI device registration and attachment to the
MIPI-DSI host at probe time.

Besides solving the probe ordering problems, this makes the bridge work
with R-Car DU. The R-Car DU will attempt to locate the DSI host bridge in
its own rcar_du_probe()->rcar_du_modeset_init()->rcar_du_encoder_init()
by calling of_drm_find_bridge() which calls of_drm_find_and_get_bridge()
and iterates over bridge_list to locate the DSI host bridge.

However, unless the WS driver calls mipi_dsi_attach() in probe(), the
DSI host bridge .attach callback rcar_mipi_dsi_host_attach() is not
called and the DSI host bridge is not added into bridge_list. Therefore
the of_drm_find_and_get_bridge() called from du_probe() will never find
the DSI host bridge and probe will indefinitelly fail with -EPROBE_DEFER.

The circular dependency here is, that if rcar_du_encoder_init() would
manage to find the DSI host bridge, it would call the WS driver .attach
callback ws_bridge_bridge_attach(), but this is too late and can never
happen. This change avoids the circular dependency.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20260206125801.78705-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-03-03 09:11:14 +01:00
Sanjay Yadav
abdcd4c358 gpu/buddy: Introduce gpu_buddy_assert() for kunit-aware assertions
Introduce gpu_buddy_assert(), a small helper that wraps WARN_ON() and,
when CONFIG_KUNIT is enabled, also calls kunit_fail_current_test() so
that any active KUnit test is marked as failed. In non-KUnit builds
the macro reduces to WARN_ON(), preserving existing behaviour.

Stringify the asserted condition in the failure message to make it easy
to identify which assertion fired. Leave the WARN_ON() in
gpu_buddy_block_trim() unchanged, as it returns -EINVAL and the caller
already observes the failure via the return code.

Cc: Christian König <christian.koenig@amd.com>
Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260227130037.53615-2-sanjay.kumar.yadav@intel.com
2026-03-03 13:37:42 +05:30
Bart Van Assche
01086b97dc dma-buf: Suppress a thread-safety complaint
Handle all possible dma_resv_lock() return values. This patch prepares
for enabling compile-time thread-safety analysis. This will cause the
compiler to check whether all dma_resv_lock() return values are handled.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260227165501.2062829-1-bvanassche@acm.org
2026-03-03 08:39:13 +01:00
Dave Airlie
17b95278ae Merge tag 'drm-xe-next-2026-03-02' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
UAPI Changes:
- restrict multi-lrc to VCS/VECS engines (Xin Wang)
- Introduce a flag to disallow vm overcommit in fault mode (Thomas)
- update used tracking kernel-doc (Auld, Fixes)
- Some bind queue fixes (Auld, Fixes)

Cross-subsystem Changes:
- Split drm_suballoc_new() into SA alloc and init helpers (Satya, Fixes)
- pass pagemap_addr by reference (Arnd, Fixes)
- Revert "drm/pagemap: Disable device-to-device migration" (Thomas)
- Fix unbalanced unlock in drm_gpusvm_scan_mm (Maciej, Fixes)
- Small GPUSVM fixes (Brost, Fixes)
- Fix xe SVM configs (Thomas, Fixes)

Core Changes:
- Fix a hmm_range_fault() livelock / starvation problem (Thomas, Fixes)

Driver Changes:
- Fix leak on xa_store failure (Shuicheng, Fixes)
- Correct implementation of Wa_16025250150 (Roper, Fixes)
- Refactor context init into xe_lrc_ctx_init (Raag)
- Fix GSC proxy cleanup on early initialization failure (Zhanjun)
- Fix exec queue creation during post-migration recovery (Tomasz, Fixes)
- Apply windower hardware filtering setting on Xe3 and Xe3p (Roper)
- Free ctx_restore_mid_bb in release (Shuicheng, Fixes)
- Drop stale MCR steering TODO comment (Roper)
- dGPU memory optimizations (Brost)
- Do not preempt fence signaling CS instructions (Brost, Fixes)
- Revert "drm/xe/compat: Remove unused i915_reg.h from compat header" (Uma)
- Don't expose display modparam if no display support (Wajdeczko)
- Some VRAM flag improvements (Wajdeczko)
- Misc fix for xe_guc_ct.c (Shuicheng, Fixes)
- Remove unused i915_reg.h from compat header (Uma)
- Workaround cleanup & simplification (Roper)
- Add prefetch pagefault support for Xe3p (Varun)
- Fix fs_reclaim deadlock caused by CCS save/restore (Satya, Fixes)
- Cleanup partially initialized sync on parse failure (Shuicheng, Fixes)
- Allow to change VFs VRAM quota using sysfs (Michal)
- Increase GuC log sizes in debug builds (Tomasz)
- Wa_18041344222 changes (Harish)
- Add Wa_14026781792 (Niton)
- Add debugfs facility to catch RTP mistakes (Roper)
- Convert GT stats to per-cpu counters (Brost)
- Prevent unintended VRAM channel creation (Karthik)
- Privatize struct xe_ggtt (Maarten)
- remove unnecessary struct dram_info forward declaration (Jani)
- pagefault refactors (Brost)
- Apply Wa_14024997852 (Arvind)
- Redirect faults to dummy page for wedged device (Raag, Fixes)
- Force EXEC_QUEUE_FLAG_KERNEL for kernel internal VMs (Piotr)
- Stop applying Wa_16018737384 from Xe3 onward (Roper)
- Add new XeCore fuse registers to VF runtime regs (Roper)
- Update xe_device_declare_wedged() error log (Raag)
- Make xe_modparam.force_vram_bar_size signed (Shuicheng, Fixes)
- Avoid reading media version when media GT is disabled (Piotr, Fixes)
- Fix handling of Wa_14019988906 & Wa_14019877138 (Roper, Fixes)
- Basic enabling patches for Xe3p_LPG and NVL-P (Gustavo, Roper, Shekhar)
- Avoid double-adjust in 64-bit reads (Shuicheng, Fixes)
- Allow VF to initialize MCR tables (Wajdeczko)
- Add Wa_14025883347 for GuC DMA failure on reset (Anirban)
- Add bounds check on pat_index to prevent OOB kernel read in madvise (Jia, Fixes)
- Fix the address range assert in ggtt_get_pte helper (Winiarski)
- XeCore fuse register changes (Roper)
- Add more info to powergate_info debugfs (Vinay)
- Separate out GuC RC code (Vinay)
- Fix g2g_test_array indexing (Pallavi)
- Mutual exclusivity between CCS-mode and PF (Nareshkumar, Fixes)
- Some more _types.h cleanups (Wajdeczko)
- Fix sysfs initialization (Wajdeczko, Fixes)
- Drop unnecessary goto in xe_device_create (Roper)
- Disable D3Cold for BMG only on specific platforms (Karthik, Fixes)
- Add sriov.admin_only_pf attribute (Wajdeczko)
- replace old wq(s), add WQ_PERCPU to alloc_workqueue (Marco)
- Make MMIO communication more robust (Wajdeczko)
- Fix warning of kerneldoc (Shuicheng, Fixes)
- Fix topology query pointer advance (Shuicheng, Fixes)
- use entry_dump callbacks for xe2+ PAT dumps (Xin Wang)
- Fix kernel-doc warning in GuC scheduler ABI header (Chaitanya, Fixes)
- Fix CFI violation in debugfs access (Daniele, Fixes)
- Apply WA_16028005424 to Media (Balasubramani)
- Fix typo in function kernel-doc (Wajdeczko)
- Protect priority against concurrent access (Niranjana)
- Fix nvm aux resource cleanup (Shuicheng, Fixes)
- Fix is_bound() pci_dev lifetime (Shuicheng, Fixes)
- Use CLASS() for forcewake in xe_gt_enable_comp_1wcoh (Shuicheng)
- Reset VF GuC state on fini (Wajdeczko)
- Move _THIS_IP_ usage from xe_vm_create() to dedicated function (Nathan Chancellor, Fixes)
- Unregister drm device on probe error (Shuicheng, Fixes)
- Disable DCC on PTL (Vinay, Fixes)
- Fix Wa_18022495364 (Tvrtko, Fixes)
- Skip address copy for sync-only execs (Shuicheng, Fixes)
- derive mem copy capability from graphics version (Nitin, Fixes)
- Use DRM_BUDDY_CONTIGUOUS_ALLOCATION for contiguous allocations (Sanjay)
- Context based TLB invalidations (Brost)
- Enable multi_queue on xe3p_xpc (Brost, Niranjana)
- Remove check for gt in xe_query (Nakshtra)
- Reduce LRC timestamp stuck message on VFs to notice (Brost, Fixes)

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

From: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/aaYR5G2MHjOEMXPW@lstrano-desk.jf.intel.com
2026-03-03 10:37:29 +10:00
Shuicheng Lin
6bc6fec71a drm/xe/reg_sr: Fix leak on xa_store failure
Free the newly allocated entry when xa_store() fails to avoid a memory
leak on the error path.

v2: use goto fail_free. (Bala)

Fixes: e5283bd4df ("drm/xe/reg_sr: Remove register pool")
Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260204172810.1486719-2-shuicheng.lin@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-02 14:29:29 -08:00
Gangliang Xie
db217d08af drm/amd/ras: Add table reset func for pmfw eeprom
add table reset func for pmfw eeprom, add smu eeprom control
structure

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:58 -05:00
Colin Ian King
0e5eaa8d8d drm/amd/display: remove extra ; from statement, remove extra tabs
There is a statement that has a ;; at the end, remove the extraneous ;
and remove extra tabs in the code block.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:52 -05:00
Lijo Lazar
36a0245666 drm/amdgpu: Use get_smn_base in aqua_vanjaram
Use get_smn_base interface to get IP die instance's base offset in
aqua_vanjaram. encode_ext_smn_addressing is not used.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:48 -05:00
Lijo Lazar
467ebfe65f drm/amdgpu: Add smn callbacks to register block
Add smn block to register access and callback interface definition to
get smn base.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:44 -05:00
Lijo Lazar
b2d5512471 drm/amdgpu: Move pcie lock to register block
Move pcie register access lock to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:41 -05:00
Lijo Lazar
4a6ab03731 drm/amdgpu: Add pcie64 extended to register block
Add extended pcie 64-bit access method to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:38 -05:00
Lijo Lazar
74b9c49e6d drm/amdgpu: Add pcie64 indirect to register block
Move 64-bit pcie indirect read/writes to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:34 -05:00
Lijo Lazar
5312d68a6b drm/amdgpu: Add pcie ext access to register block
Move pcie extended access (64-bit address) to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:31 -05:00
Lijo Lazar
e84d7e717b drm/amdgpu: Add pcie indirect to register block
Move pcie indirect access to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:28 -05:00
Lijo Lazar
5d82f451b0 drm/amdgpu: Add pciep method to register block
Move pcie port method to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:19 -05:00
Lijo Lazar
72cc2e3011 drm/amdgpu: Add audio method to register block
Move audio endpoint callbacks to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-02 16:46:16 -05:00