drm/amdgpu: add missing lock to amdgpu_ttm_access_memory_sdma

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commit 4fa944255b upstream.

Users of ttm entities need to hold the gtt_window_lock before using them
to guarantee proper ordering of jobs.

Cc: stable@vger.kernel.org
Fixes: cb5cc4f573 ("drm/amdgpu: improve debug VRAM access performance using sdma")
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pierre-Eric Pelloux-Prayer 2025-11-25 10:48:39 +01:00 • committed by Greg Kroah-Hartman

parent 0b48f98f09

commit 431b9cd093

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

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