linux.git/drivers/gpu/drm/drm_file.c, branch v6.18

drm: add debugfs support on per client-id basis

2025-07-04T13:59:06+00:00

add support to add a directory for each client-id
with root at the dri level. Since the clients are
unique and not just related to one single drm device,
so it makes more sense to add all the client based
nodes with root as dri.

Also create a debugfs file which show the process
information for the client and create a symlink back
to the parent drm device from each client.

Signed-off-by: Sunil Khatri 
Reviewed-by: Christian König 
Link: https://lore.kernel.org/r/20250704075548.1549849-3-sunil.khatri@amd.com
Signed-off-by: Christian König

drm: Include

2025-06-16T07:01:23+00:00

Fix the compile-time warnings

  drivers/gpu/drm/drm_atomic.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_atomic_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_atomic_state_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_atomic_uapi.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_auth.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_buddy.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_color_mgmt.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_connector.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_damage_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_debugfs_crc.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_drv.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_edid.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_exec.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_fb_dma_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_file.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_flip_work.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_format_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_gpusvm.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_gpuvm.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_managed.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_mipi_dbi.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_mipi_dsi.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_mode_config.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_modeset_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_modeset_lock.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_panic.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_plane.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_plane_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_print.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_privacy_screen.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_self_refresh_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_simple_kms_helper.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_suballoc.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_syncobj.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_vblank_work.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_vma_manager.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/drm_writeback.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/lib/drm_random.c: warning: EXPORT_SYMBOL() is used, but #include  is missing
  drivers/gpu/drm/tests/drm_kunit_helpers.c: warning: EXPORT_SYMBOL() is used, but #include  is missing

Signed-off-by: Thomas Zimmermann 
Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include  when W=1")
Reviewed-by: André Almeida 
Cc: Masahiro Yamada 
Cc: Nathan Chancellor 
Link: https://lore.kernel.org/r/20250612121633.229222-3-tzimmermann@suse.de

drm/file: add client id to drm_file_error

2025-06-12T12:33:51+00:00

Add client id to the drm_file_error api, client id
is a unique id for each drm fd and is quite useful
for debugging.

v2: Swapped client id and client name order [Chrisitan]

Signed-off-by: Sunil Khatri 
Reviewed-by: Christian König 
Link: https://lore.kernel.org/r/20250530062929.1954784-1-sunil.khatri@amd.com
Signed-off-by: Christian König

Merge tag 'amd-drm-next-6.16-2025-05-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2025-05-11T21:14:34+00:00

amd-drm-next-6.16-2025-05-09:

amdgpu:
- IPS fixes
- DSC cleanup
- DC Scaling updates
- DC FP fixes
- Fused I2C-over-AUX updates
- SubVP fixes
- Freesync fix
- DMUB AUX fixes
- VCN fix
- Hibernation fixes
- HDP fixes
- DCN 2.1 fixes
- DPIA fixes
- DMUB updates
- Use drm_file_err in amdgpu
- Enforce isolation updates
- Use new dma_fence helpers
- USERQ fixes
- Documentation updates
- Misc code cleanups
- SR-IOV updates
- RAS updates
- PSP 12 cleanups

amdkfd:
- Update error messages for SDMA
- Userptr updates

drm:
- Add drm_file_err function

dma-buf:
- Add a helper to sort and deduplicate dma_fence arrays

From: Alex Deucher 
Link: https://lore.kernel.org/r/20250509230951.3871914-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie

drm: add drm_file_err function to add process info

2025-05-05T17:29:09+00:00

Add a drm helper function which appends the process information for
the drm_file over drm_err formatted output.

v5: change to macro from function (Christian Koenig)
    add helper functions for lock/unlock (Christian Koenig)

v6: remove __maybe_unused and make function inline (Jani Nikula)
    remove drm_print.h

v7: Use va_format and %pV to concatenate fmt and vargs (Jani Nikula)

v8: Code formatting and typos (Ursulin tvrtko)

Signed-off-by: Sunil Khatri 
Reviewed-by: Tvrtko Ursulin 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/fdinfo: Protect against driver unbind

2025-04-28T18:04:15+00:00

If we unbind a driver from the PCI device with an active DRM client,
subsequent read of the fdinfo data associated with the file descriptor in
question will not end well.

Protect the path with a drm_dev_enter/exit() pair.

Signed-off-by: Tvrtko Ursulin 
Cc: Christian König 
Cc: Lucas De Marchi 
Cc: Rodrigo Vivi 
Cc: Umesh Nerlige Ramappa 
Reviewed-by: Christian König 
Fixes: 3f09a0cd4ea3 ("drm: Add common fdinfo helper")
Cc:  # v6.5+
Signed-off-by: Christian König 
Link: https://lore.kernel.org/r/20250418162512.72324-1-tvrtko.ursulin@igalia.com

drm/file: Add fdinfo helper for printing regions with prefix

2025-02-07T14:23:36+00:00

This is motivated by the desire of some drivers (eg. Panthor) to print the
size of internal memory regions with a prefix that reflects the driver
name, as suggested in the previous documentation commit.

That means adding a new argument to print_size and making it available for
DRM users.

Cc: Tvrtko Ursulin 
Reviewed-by: Tvrtko Ursulin 
Signed-off-by: Adrián Larumbe 
Signed-off-by: Boris Brezillon 
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-3-adrian.larumbe@collabora.com

drm: make drm-active- stats optional

2024-12-19T15:56:17+00:00

When memory stats is generated fresh everytime by going though all the
BOs, their active information is quite easy to get. But if the stats are
tracked with BO's state this becomes harder since the job scheduling
part doesn't really deal with individual buffers.

Make drm-active- optional to enable amdgpu to switch to the second
method.

Signed-off-by: Yunxiang Li 
Reviewed-by: Tvrtko Ursulin 
Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-3-Yunxiang.Li@amd.com
Signed-off-by: Christian König

drm: add drm_memory_stats_is_zero

2024-12-19T15:56:05+00:00

Add a helper to check if the memory stats is zero, this will be used to
check for memory accounting errors.

Signed-off-by: Yunxiang Li 
Reviewed-by: Christian König 
Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-2-Yunxiang.Li@amd.com
Signed-off-by: Christian König

drm: use ATOMIC64_INIT() for atomic64_t

2024-11-05T12:12:32+00:00

use ATOMIC64_INIT() not ATOMIC_INIT() for atomic64_t

Fixes: 3f09a0cd4ea3 ("drm: Add common fdinfo helper")
Signed-off-by: Jonathan Gray 
Reviewed-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/20240111023045.50013-1-jsg@jsg.id.au
Signed-off-by: Jani Nikula