From a4c63cafa58b4bd9e15511bab77a4752b93d3aa0 Mon Sep 17 00:00:00 2001 From: Andrey Grodzovsky Date: Tue, 30 Nov 2021 16:19:03 -0500 Subject: drm/amdgpu: Introduce reset domain MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Defined a reset_domain struct such that all the entities that go through reset together will be serialized one against another. Do it for both single device and XGMI hive cases. Signed-off-by: Andrey Grodzovsky Suggested-by: Daniel Vetter Suggested-by: Christian König Reviewed-by: Christian König Link: https://www.spinics.net/lists/amd-gfx/msg74111.html --- drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index e8b8f28c2f72..d406897346d6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -398,6 +398,14 @@ struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev) goto pro_end; } + hive->reset_domain.wq = alloc_ordered_workqueue("amdgpu-reset-hive", 0); + if (!hive->reset_domain.wq) { + dev_err(adev->dev, "XGMI: failed allocating wq for reset domain!\n"); + kfree(hive); + hive = NULL; + goto pro_end; + } + hive->hive_id = adev->gmc.xgmi.hive_id; INIT_LIST_HEAD(&hive->device_list); INIT_LIST_HEAD(&hive->node); @@ -407,6 +415,7 @@ struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev) task_barrier_init(&hive->tb); hive->pstate = AMDGPU_XGMI_PSTATE_UNKNOWN; hive->hi_req_gpu = NULL; + /* * hive pstate on boot is high in vega20 so we have to go to low * pstate on after boot. -- cgit