linux-kernel - [PATCH 5.18 009/141] drm/amdgpu: Resolve RAS GFX error count issue after cold boot on Arcturus

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Date:   Mon, 20 Jun 2022 14:49:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Candice Li <candice.li@....com>,
        Hawking Zhang <Hawking.Zhang@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 009/141] drm/amdgpu: Resolve RAS GFX error count issue after cold boot on Arcturus

From: Candice Li <candice.li@....com>

[ Upstream commit 2a460963350ec6b1534d28d7f943b5f84815aff2 ]

Adjust the sequence for ras late init and separate ras reset error status
from query status.

v2: squash in fix from Candice

Signed-off-by: Candice Li <candice.li@....com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c |  9 ++++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 27 ++++++++++++++++++++-----
 2 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 28a736c507bb..bd3b32e5ba9e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -625,17 +625,20 @@ int amdgpu_get_gfx_off_status(struct amdgpu_device *adev, uint32_t *value)
 int amdgpu_gfx_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
 {
 	int r;
-	r = amdgpu_ras_block_late_init(adev, ras_block);
-	if (r)
-		return r;
 
 	if (amdgpu_ras_is_supported(adev, ras_block->block)) {
 		if (!amdgpu_persistent_edc_harvesting_supported(adev))
 			amdgpu_ras_reset_error_status(adev, AMDGPU_RAS_BLOCK__GFX);
 
+		r = amdgpu_ras_block_late_init(adev, ras_block);
+		if (r)
+			return r;
+
 		r = amdgpu_irq_get(adev, &adev->gfx.cp_ecc_error_irq, 0);
 		if (r)
 			goto late_fini;
+	} else {
+		amdgpu_ras_feature_enable_on_boot(adev, ras_block, 0);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 424c22a841f4..3f96dadf2698 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -195,6 +195,13 @@ static ssize_t amdgpu_ras_debugfs_read(struct file *f, char __user *buf,
 	if (amdgpu_ras_query_error_status(obj->adev, &info))
 		return -EINVAL;
 
+	/* Hardware counter will be reset automatically after the query on Vega20 and Arcturus */
+	if (obj->adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 2) &&
+	    obj->adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 4)) {
+		if (amdgpu_ras_reset_error_status(obj->adev, info.head.block))
+			dev_warn(obj->adev->dev, "Failed to reset error counter and error status");
+	}
+
 	s = snprintf(val, sizeof(val), "%s: %lu\n%s: %lu\n",
 			"ue", info.ue_count,
 			"ce", info.ce_count);
@@ -548,9 +555,10 @@ static ssize_t amdgpu_ras_sysfs_read(struct device *dev,
 	if (amdgpu_ras_query_error_status(obj->adev, &info))
 		return -EINVAL;
 
-	if (obj->adev->asic_type == CHIP_ALDEBARAN) {
+	if (obj->adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 2) &&
+	    obj->adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 4)) {
 		if (amdgpu_ras_reset_error_status(obj->adev, info.head.block))
-			DRM_WARN("Failed to reset error counter and error status");
+			dev_warn(obj->adev->dev, "Failed to reset error counter and error status");
 	}
 
 	return sysfs_emit(buf, "%s: %lu\n%s: %lu\n", "ue", info.ue_count,
@@ -1023,9 +1031,6 @@ int amdgpu_ras_query_error_status(struct amdgpu_device *adev,
 		}
 	}
 
-	if (!amdgpu_persistent_edc_harvesting_supported(adev))
-		amdgpu_ras_reset_error_status(adev, info->head.block);
-
 	return 0;
 }
 
@@ -1145,6 +1150,12 @@ int amdgpu_ras_query_error_count(struct amdgpu_device *adev,
 		if (res)
 			return res;
 
+		if (adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 2) &&
+		    adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 4)) {
+			if (amdgpu_ras_reset_error_status(adev, info.head.block))
+				dev_warn(adev->dev, "Failed to reset error counter and error status");
+		}
+
 		ce += info.ce_count;
 		ue += info.ue_count;
 	}
@@ -1705,6 +1716,12 @@ static void amdgpu_ras_log_on_err_counter(struct amdgpu_device *adev)
 			continue;
 
 		amdgpu_ras_query_error_status(adev, &info);
+
+		if (adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 2) &&
+		    adev->ip_versions[MP0_HWIP][0] != IP_VERSION(11, 0, 4)) {
+			if (amdgpu_ras_reset_error_status(adev, info.head.block))
+				dev_warn(adev->dev, "Failed to reset error counter and error status");
+		}
 	}
 }
 
-- 
2.35.1