[PATCH] drm/amdgpu: inform PF if VF receives RAS poison interrupt

[Tao Zhou]

PF will do page retirement, reset VF and inform VF to reserve RAS bad pages.

Signed-off-by: Tao Zhou <tao.zhou1 at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c  | 18 +++++++++++++-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h |  1 +
 drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c    |  6 ++++++
 drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h    |  1 +
 4 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
index aad3c8b4c810..b603ab3bd138 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
@@ -123,12 +123,20 @@ int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
 	};
 	struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head);
 
-	ret =
-		amdgpu_umc_do_page_retirement(adev, ras_error_status, NULL, reset);
+	if (!amdgpu_sriov_vf(adev)) {
+		ret = amdgpu_umc_do_page_retirement(adev,
+				ras_error_status, NULL, reset);
 
-	if (ret == AMDGPU_RAS_SUCCESS && obj) {
-		obj->err_data.ue_count += err_data->ue_count;
-		obj->err_data.ce_count += err_data->ce_count;
+		if (ret == AMDGPU_RAS_SUCCESS && obj) {
+			obj->err_data.ue_count += err_data->ue_count;
+			obj->err_data.ce_count += err_data->ce_count;
+		}
+	} else {
+		if (adev->virt.ops && adev->virt.ops->ras_poison_handler)
+			adev->virt.ops->ras_poison_handler(adev);
+		else
+			dev_warn(adev->dev,
+				"No ras_poison_handler interface in SRIOV!\n");
 	}
 
 	return ret;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index d94c31e68a14..87de4ef60f86 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -84,6 +84,7 @@ struct amdgpu_virt_ops {
 	int (*reset_gpu)(struct amdgpu_device *adev);
 	int (*wait_reset)(struct amdgpu_device *adev);
 	void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3);
+	void (*ras_poison_handler)(struct amdgpu_device *adev);
 };
 
 /*
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
index a2f04b249132..fd814a099066 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
@@ -405,6 +405,11 @@ static int xgpu_ai_request_init_data(struct amdgpu_device *adev)
 	return xgpu_ai_send_access_requests(adev, IDH_REQ_GPU_INIT_DATA);
 }
 
+void amdgpu_virt_ras_poison_handler(struct amdgpu_device *adev)
+{
+	xgpu_ai_send_access_requests(adev, IDH_RAS_POISON);
+}
+
 const struct amdgpu_virt_ops xgpu_ai_virt_ops = {
 	.req_full_gpu	= xgpu_ai_request_full_gpu_access,
 	.rel_full_gpu	= xgpu_ai_release_full_gpu_access,
@@ -412,4 +417,5 @@ const struct amdgpu_virt_ops xgpu_ai_virt_ops = {
 	.wait_reset = NULL,
 	.trans_msg = xgpu_ai_mailbox_trans_msg,
 	.req_init_data  = xgpu_ai_request_init_data,
+	.ras_poison_handler = amdgpu_virt_ras_poison_handler,
 };
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
index fa7e13e0459e..188181b0af4b 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
@@ -39,6 +39,7 @@ enum idh_request {
 
 	IDH_LOG_VF_ERROR       = 200,
 	IDH_READY_TO_RESET 	= 201,
+	IDH_RAS_POISON	= 202,
 };
 
 enum idh_event {
-- 
2.35.1