drm/amdgpu: check if vram is lost v2

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backup first 64 byte of gart table as reset magic, check if magic is same
after gpu hw reset.
v2: use memcmp instead of manual innovation.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Chunming Zhou 2017-05-15 14:20:00 +08:00 • committed by Alex Deucher

parent e0ec450636

commit 0c49e0b8a4

2 changed files with 21 additions and 1 deletions

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2

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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20

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

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