drm/amdgpu: Free VGA stolen memory as soon as possible.
authorAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Fri, 6 Apr 2018 19:54:10 +0000 (14:54 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 15 May 2018 18:43:16 +0000 (13:43 -0500)
commit6f752ec2c20c6a575da29d5b297980f376830e6b
tree4c3f79a2a3312faa3ca8df5329a3bd71429a85eb
parentebdef28ebbcf767d9fa687acb1d02d97d834c628
drm/amdgpu: Free VGA stolen memory as soon as possible.

Reserved VRAM is used to avoid overriding pre OS FB.
Once our display stack takes over we don't need the reserved
VRAM anymore.

v2:
Remove comment, we know actually why we need to reserve the stolen VRAM.
Fix return type for amdgpu_ttm_late_init.
v3:
Return 0 in amdgpu_bo_late_init, rebase on changes to previous patch
v4: rebase
v5:
For GMC9 reserve always just 9M and keep the stolem memory around
until GART table curruption on S3 resume is resolved.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c