drm/amdgpu/mes: implement suspending all gangs

Implement suspending all gangs.

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

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 07ddf7b..e64f2a4 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -446,3 +446,28 @@ int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id)
        mutex_unlock(&adev->mes.mutex);
        return 0;
 }
+
+int amdgpu_mes_suspend(struct amdgpu_device *adev)
+{
+       struct idr *idp;
+       struct amdgpu_mes_process *process;
+       struct amdgpu_mes_gang *gang;
+       struct mes_suspend_gang_input input;
+       int r, pasid;
+
+       mutex_lock(&adev->mes.mutex);
+
+       idp = &adev->mes.pasid_idr;
+
+       idr_for_each_entry(idp, process, pasid) {
+               list_for_each_entry(gang, &process->gang_list, list) {
+                       r = adev->mes.funcs->suspend_gang(&adev->mes, &input);
+                       if (r)
+                               DRM_ERROR("failed to suspend pasid %d gangid %d",
+                                        pasid, gang->gang_id);
+               }
+       }
+
+       mutex_unlock(&adev->mes.mutex);
+       return 0;
+}

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index a24394f..8c26528 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -231,4 +231,6 @@ int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid,
                        int *gang_id);
 int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id);
 
+int amdgpu_mes_suspend(struct amdgpu_device *adev);
+
 #endif /* __AMDGPU_MES_H__ */