drm/amdgpu: fix byte/dword unit mismatch in coredump IB dump

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In amdgpu_devcoredump_print_ibs(), the NO_CPU_ACCESS VRAM path passed
cursor.start/4 and cursor.size/4 to amdgpu_device_mm_access(), but that
function's pos/size parameters are byte offsets/lengths (confirmed by
amdgpu_ttm_vram_mm_access() and leading to wrong size calculation.

Similarly with that change the off index needs to be calculated
based on dword since that is a u32 type.

Fixes: 7b15fc2d1f ("drm/amdgpu: dump job ibs in the devcoredump")
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Sunil Khatri 2026-08-31 21:01:39 +05:30 • committed by Alex Deucher

parent 8bfe29d5c7

commit 1bd613b0ed

1 changed files with 3 additions and 3 deletions

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

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