From df399b064118bf9a5b9a3faaa67feb1cbb34e9d4 Mon Sep 17 00:00:00 2001 From: shaoyunl Date: Wed, 20 Mar 2019 16:14:56 -0400 Subject: drm/amdgpu: XGMI pstate switch initial support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h index 24a3b0362f98..3e9c91e9a4bf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h @@ -33,11 +33,21 @@ struct amdgpu_hive_info { struct kobject *kobj; struct device_attribute dev_attr; struct amdgpu_device *adev; + int pstate; /*0 -- low , 1 -- high , -1 unknown*/ }; struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev, int lock); int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev); int amdgpu_xgmi_add_device(struct amdgpu_device *adev); void amdgpu_xgmi_remove_device(struct amdgpu_device *adev); +int amdgpu_xgmi_set_pstate(struct amdgpu_device *adev, int pstate); + +static inline bool amdgpu_xgmi_same_hive(struct amdgpu_device *adev, + struct amdgpu_device *bo_adev) +{ + return (adev != bo_adev && + adev->gmc.xgmi.hive_id && + adev->gmc.xgmi.hive_id == bo_adev->gmc.xgmi.hive_id); +} #endif -- cgit v1.2.3-70-g09d2