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(parent: 1647b54) | patch
drm/amdgpu/gmc: use PCI BARs for APUs in passthrough
authorAlex Deucher <alexander.deucher@amd.com>
Wed, 9 Mar 2022 23:02:11 +0000 (18:02 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 25 Mar 2022 16:40:24 +0000 (12:40 -0400)
commitb818a5d374542ccec73dcfe578a081574029820e
treeee2d225a28041e48b29fc559d1574d7549aabee1tree | snapshot
parent1647b54ed55d4d48c7199d439f8834626576cbe9commit | diff
drm/amdgpu/gmc: use PCI BARs for APUs in passthrough

If the GPU is passed through to a guest VM, use the PCI
BAR for CPU FB access rather than the physical address of
carve out.  The physical address is not valid in a guest.

v2: Fix HDP handing as suggested by Michel

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c diff | blob | history
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c diff | blob | history
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c diff | blob | history
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c diff | blob | history
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c diff | blob | history
Domain: System / Kernel;