drm/amdgpu/gmc9: rework stolen vga memory handling

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No functional change, just rework it in order to adjust the
behavior on a per asic level.  The problem is that on vega10,
something corrupts the lower 8 MB of vram on the second
resume from S3.  This does not seem to affect Raven, other
gmc9 based asics need testing.

Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Deucher 2018-08-30 09:31:56 -05:00

parent 5d35ed4832

commit cd2b56238e

1 changed files with 29 additions and 19 deletions

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48

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

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