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drm/amdgpu: XGMI pstate switch initial support
authorshaoyunl <shaoyun.liu@amd.com>
Thu, 21 Feb 2019 21:30:25 +0000 (16:30 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 19 Mar 2019 20:36:48 +0000 (15:36 -0500)
commit9b638f9751308ae3ae8f28e0c6e9decffd97f5f9
treef64c4de40d4e49ea3f11ba79dbc3e65bd514c2fa
parenta690aa0f459eba3e768257a655c82b24d14dcc88
drm/amdgpu: XGMI pstate switch initial support

Driver vote low to high pstate switch whenever there is an outstanding
XGMI mapping request. Driver vote high to low pstate when all the
outstanding XGMI mapping is terminated.

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu.h
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h