[PATCH] drm/amdgpu: save error count in RAS poison handler

[Tao Zhou]

Otherwise the RAS error count couldn't be queried from sysfs.

Signed-off-by: Tao Zhou <tao.zhou1 at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c |   2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c    | 170 ++++++++++++---------
 drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h    |   3 +-
 3 files changed, 99 insertions(+), 76 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 0bf09a94d944..776a947b45df 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -727,7 +727,7 @@ void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev, bo
 
 	/* CPU MCA will handle page retirement if connected_to_cpu is 1 */
 	if (!adev->gmc.xgmi.connected_to_cpu)
-		amdgpu_umc_do_page_retirement(adev, &err_data, NULL, reset);
+		amdgpu_umc_poison_handler(adev, &err_data, reset);
 	else if (reset)
 		amdgpu_amdkfd_gpu_reset(adev);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
index 0c33f367a4e5..1c2dbd00f647 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
@@ -23,79 +23,7 @@
 
 #include "amdgpu_ras.h"
 
-static int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
-		void *ras_error_status,
-		struct amdgpu_iv_entry *entry)
-{
-	return amdgpu_umc_do_page_retirement(adev, ras_error_status, entry, true);
-}
-
-int amdgpu_umc_ras_late_init(struct amdgpu_device *adev)
-{
-	int r;
-	struct ras_fs_if fs_info = {
-		.sysfs_name = "umc_err_count",
-	};
-	struct ras_ih_if ih_info = {
-		.cb = amdgpu_umc_process_ras_data_cb,
-	};
-
-	if (!adev->umc.ras_if) {
-		adev->umc.ras_if =
-			kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
-		if (!adev->umc.ras_if)
-			return -ENOMEM;
-		adev->umc.ras_if->block = AMDGPU_RAS_BLOCK__UMC;
-		adev->umc.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
-		adev->umc.ras_if->sub_block_index = 0;
-	}
-	ih_info.head = fs_info.head = *adev->umc.ras_if;
-
-	r = amdgpu_ras_late_init(adev, adev->umc.ras_if,
-				 &fs_info, &ih_info);
-	if (r)
-		goto free;
-
-	if (amdgpu_ras_is_supported(adev, adev->umc.ras_if->block)) {
-		r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
-		if (r)
-			goto late_fini;
-	} else {
-		r = 0;
-		goto free;
-	}
-
-	/* ras init of specific umc version */
-	if (adev->umc.ras_funcs &&
-	    adev->umc.ras_funcs->err_cnt_init)
-		adev->umc.ras_funcs->err_cnt_init(adev);
-
-	return 0;
-
-late_fini:
-	amdgpu_ras_late_fini(adev, adev->umc.ras_if, &ih_info);
-free:
-	kfree(adev->umc.ras_if);
-	adev->umc.ras_if = NULL;
-	return r;
-}
-
-void amdgpu_umc_ras_fini(struct amdgpu_device *adev)
-{
-	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC) &&
-			adev->umc.ras_if) {
-		struct ras_common_if *ras_if = adev->umc.ras_if;
-		struct ras_ih_if ih_info = {
-			.head = *ras_if,
-			.cb = amdgpu_umc_process_ras_data_cb,
-		};
-
-		amdgpu_ras_late_fini(adev, ras_if, &ih_info);
-		kfree(ras_if);
-	}
-}
-
-int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev,
+static int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev,
 		void *ras_error_status,
 		struct amdgpu_iv_entry *entry,
 		bool reset)
@@ -180,6 +108,102 @@ int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev,
 	return AMDGPU_RAS_SUCCESS;
 }
 
+int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
+		void *ras_error_status,
+		bool reset)
+{
+	int ret;
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+	struct ras_common_if head = {
+		.block = AMDGPU_RAS_BLOCK__UMC,
+	};
+	struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head);
+
+	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;
+	}
+
+	return ret;
+}
+
+static int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
+		void *ras_error_status,
+		struct amdgpu_iv_entry *entry)
+{
+	return amdgpu_umc_do_page_retirement(adev, ras_error_status, entry, true);
+}
+
+int amdgpu_umc_ras_late_init(struct amdgpu_device *adev)
+{
+	int r;
+	struct ras_fs_if fs_info = {
+		.sysfs_name = "umc_err_count",
+	};
+	struct ras_ih_if ih_info = {
+		.cb = amdgpu_umc_process_ras_data_cb,
+	};
+
+	if (!adev->umc.ras_if) {
+		adev->umc.ras_if =
+			kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
+		if (!adev->umc.ras_if)
+			return -ENOMEM;
+		adev->umc.ras_if->block = AMDGPU_RAS_BLOCK__UMC;
+		adev->umc.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+		adev->umc.ras_if->sub_block_index = 0;
+	}
+	ih_info.head = fs_info.head = *adev->umc.ras_if;
+
+	r = amdgpu_ras_late_init(adev, adev->umc.ras_if,
+				 &fs_info, &ih_info);
+	if (r)
+		goto free;
+
+	if (amdgpu_ras_is_supported(adev, adev->umc.ras_if->block)) {
+		r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
+		if (r)
+			goto late_fini;
+	} else {
+		r = 0;
+		goto free;
+	}
+
+	/* ras init of specific umc version */
+	if (adev->umc.ras_funcs &&
+	    adev->umc.ras_funcs->err_cnt_init)
+		adev->umc.ras_funcs->err_cnt_init(adev);
+
+	return 0;
+
+late_fini:
+	amdgpu_ras_late_fini(adev, adev->umc.ras_if, &ih_info);
+free:
+	kfree(adev->umc.ras_if);
+	adev->umc.ras_if = NULL;
+	return r;
+}
+
+void amdgpu_umc_ras_fini(struct amdgpu_device *adev)
+{
+	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC) &&
+			adev->umc.ras_if) {
+		struct ras_common_if *ras_if = adev->umc.ras_if;
+		struct ras_ih_if ih_info = {
+			.head = *ras_if,
+			.cb = amdgpu_umc_process_ras_data_cb,
+		};
+
+		amdgpu_ras_late_fini(adev, ras_if, &ih_info);
+		kfree(ras_if);
+	}
+}
+
+
+
 int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
 		struct amdgpu_irq_src *source,
 		struct amdgpu_iv_entry *entry)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h
index 8d18d5121f66..b72194e8bfe5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h
@@ -78,9 +78,8 @@ struct amdgpu_umc {
 
 int amdgpu_umc_ras_late_init(struct amdgpu_device *adev);
 void amdgpu_umc_ras_fini(struct amdgpu_device *adev);
-int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev,
+int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
 		void *ras_error_status,
-		struct amdgpu_iv_entry *entry,
 		bool reset);
 int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
 		struct amdgpu_irq_src *source,
-- 
2.17.1