From 625e5f3851b78ddcf1bbcfb74ea39edcdaf07d3d Mon Sep 17 00:00:00 2001
From: Asad Kamal <asad.kamal@amd.com>
Date: Mon, 2 Oct 2023 14:41:00 +0800
Subject: drm/amdgpu: Expose ras version & schema info
Expose ras table version & schema info to sysfs
v2: Updated schema to get poison support info
from ras context, removed asic specific checks
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 51 +++++++++++++++++++++++++++++++--
1 file changed, 48 insertions(+), 3 deletions(-)
(limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 9c8203e87859..5fb57419ef77 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1370,6 +1370,22 @@ static ssize_t amdgpu_ras_sysfs_features_read(struct device *dev,
return sysfs_emit(buf, "feature mask: 0x%x\n", con->features);
}
+static ssize_t amdgpu_ras_sysfs_version_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct amdgpu_ras *con =
+ container_of(attr, struct amdgpu_ras, version_attr);
+ return sysfs_emit(buf, "table version: 0x%x\n", con->eeprom_control.tbl_hdr.version);
+}
+
+static ssize_t amdgpu_ras_sysfs_schema_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct amdgpu_ras *con =
+ container_of(attr, struct amdgpu_ras, schema_attr);
+ return sysfs_emit(buf, "schema: 0x%x\n", con->schema);
+}
+
static void amdgpu_ras_sysfs_remove_bad_page_node(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
@@ -1379,11 +1395,13 @@ static void amdgpu_ras_sysfs_remove_bad_page_node(struct amdgpu_device *adev)
RAS_FS_NAME);
}
-static int amdgpu_ras_sysfs_remove_feature_node(struct amdgpu_device *adev)
+static int amdgpu_ras_sysfs_remove_dev_attr_node(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
struct attribute *attrs[] = {
&con->features_attr.attr,
+ &con->version_attr.attr,
+ &con->schema_attr.attr,
NULL
};
struct attribute_group group = {
@@ -1459,7 +1477,7 @@ static int amdgpu_ras_sysfs_remove_all(struct amdgpu_device *adev)
if (amdgpu_bad_page_threshold != 0)
amdgpu_ras_sysfs_remove_bad_page_node(adev);
- amdgpu_ras_sysfs_remove_feature_node(adev);
+ amdgpu_ras_sysfs_remove_dev_attr_node(adev);
return 0;
}
@@ -1582,6 +1600,10 @@ static BIN_ATTR(gpu_vram_bad_pages, S_IRUGO,
amdgpu_ras_sysfs_badpages_read, NULL, 0);
static DEVICE_ATTR(features, S_IRUGO,
amdgpu_ras_sysfs_features_read, NULL);
+static DEVICE_ATTR(version, 0444,
+ amdgpu_ras_sysfs_version_show, NULL);
+static DEVICE_ATTR(schema, 0444,
+ amdgpu_ras_sysfs_schema_show, NULL);
static int amdgpu_ras_fs_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
@@ -1590,6 +1612,8 @@ static int amdgpu_ras_fs_init(struct amdgpu_device *adev)
};
struct attribute *attrs[] = {
&con->features_attr.attr,
+ &con->version_attr.attr,
+ &con->schema_attr.attr,
NULL
};
struct bin_attribute *bin_attrs[] = {
@@ -1598,11 +1622,20 @@ static int amdgpu_ras_fs_init(struct amdgpu_device *adev)
};
int r;
+ group.attrs = attrs;
+
/* add features entry */
con->features_attr = dev_attr_features;
- group.attrs = attrs;
sysfs_attr_init(attrs[0]);
+ /* add version entry */
+ con->version_attr = dev_attr_version;
+ sysfs_attr_init(attrs[1]);
+
+ /* add schema entry */
+ con->schema_attr = dev_attr_schema;
+ sysfs_attr_init(attrs[2]);
+
if (amdgpu_bad_page_threshold != 0) {
/* add bad_page_features entry */
bin_attr_gpu_vram_bad_pages.private = NULL;
@@ -2594,6 +2627,14 @@ static void amdgpu_ras_query_poison_mode(struct amdgpu_device *adev)
}
}
+static int amdgpu_get_ras_schema(struct amdgpu_device *adev)
+{
+ return amdgpu_ras_is_poison_mode_supported(adev) ? AMDGPU_RAS_ERROR__POISON : 0 |
+ AMDGPU_RAS_ERROR__SINGLE_CORRECTABLE |
+ AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE |
+ AMDGPU_RAS_ERROR__PARITY;
+}
+
int amdgpu_ras_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
@@ -2636,6 +2677,7 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
con->update_channel_flag = false;
con->features = 0;
+ con->schema = 0;
INIT_LIST_HEAD(&con->head);
/* Might need get this flag from vbios. */
con->flags = RAS_DEFAULT_FLAGS;
@@ -2691,6 +2733,9 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
amdgpu_ras_query_poison_mode(adev);
+ /* Get RAS schema for particular SOC */
+ con->schema = amdgpu_get_ras_schema(adev);
+
if (amdgpu_ras_fs_init(adev)) {
r = -EINVAL;
goto release_con;
--
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