linux-kernel - [PATCH v2 0/3] drm: Create an app info option for wedge events

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Message-ID: <20250511224745.834446-1-andrealmeid@igalia.com>
Date: Sun, 11 May 2025 19:47:42 -0300
From: André Almeida <andrealmeid@...lia.com>
To: "Alex Deucher" <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	siqueira@...lia.com,
	airlied@...il.com,
	simona@...ll.ch,
	"Raag Jadav" <raag.jadav@...el.com>,
	rodrigo.vivi@...el.com,
	jani.nikula@...ux.intel.com,
	Xaver Hugl <xaver.hugl@...il.com>,
	"Pierre-Loup A . Griffais" <pgriffais@...vesoftware.com>
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	kernel-dev@...lia.com,
	amd-gfx@...ts.freedesktop.org,
	intel-xe@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org,
	André Almeida <andrealmeid@...lia.com>
Subject: [PATCH v2 0/3] drm: Create an app info option for wedge events

This patchset implements a request made by Xaver Hugl about wedge events:

"I'd really like to have the PID of the client that triggered the GPU
reset, so that we can kill it if multiple resets are triggered in a
row (or switch to software rendering if it's KWin itself) and show a
user-friendly notification about why their app(s) crashed, but that
can be added later."

>From https://lore.kernel.org/dri-devel/CAFZQkGwJ4qgHV8WTp2=svJ_VXhb-+Y8_VNtKB=jLsk6DqMYp9w@mail.gmail.com/

For testing, I've used amdgpu's debug_mask options debug_disable_soft_recovery
and debug_disable_gpu_ring_reset to test both wedge event paths in the driver.
To trigger a ring timeout, I've used this app:
https://gitlab.freedesktop.org/andrealmeid/gpu-timeout

Thanks!

Changelog:

v2:
  - Rebased on top of drm/drm-next
  - Added new patch for documentation


André Almeida (3):
  drm: Create an app info option for wedge events
  drm/doc: Add a section about "App information" for the wedge API
  drm/amdgpu: Make use of drm_wedge_app_info

 Documentation/gpu/drm-uapi.rst             | 15 +++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 19 +++++++++++++++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c    |  6 +++++-
 drivers/gpu/drm/drm_drv.c                  | 16 +++++++++++++---
 drivers/gpu/drm/i915/gt/intel_reset.c      |  3 ++-
 drivers/gpu/drm/xe/xe_device.c             |  3 ++-
 include/drm/drm_device.h                   |  8 ++++++++
 include/drm/drm_drv.h                      |  3 ++-
 8 files changed, 64 insertions(+), 9 deletions(-)

-- 
2.49.0