support eeprom records load and save for ras,
move EEPROM records storing to bad page reserving
v2: remove redundant check for con->eh_data
Signed-off-by: Tao Zhou <tao.zh...@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com>
Reviewed-by: Guchun Chen <guchun.c...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 109 ++++++++++++++++++------
1 file changed, 81 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index c6f4c01b98a8..e68f43d1cfea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1364,6 +1364,69 @@ int amdgpu_ras_add_bad_pages(struct amdgpu_device *adev,
return ret;
}
+/*
+ * write error record array to eeprom, the function should be
+ * protected by recovery_lock
+ */
+static int amdgpu_ras_save_bad_pages(struct amdgpu_device *adev)
+{
+ struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+ struct ras_err_handler_data *data;
+ struct amdgpu_ras_eeprom_control *control =
+ &adev->psp.ras.ras->eeprom_control;
+ int save_count;
+
+ if (!con || !con->eh_data)
+ return 0;
+
+ data = con->eh_data;
+ save_count = data->count - control->num_recs;
+ /* only new entries are saved */
+ if (save_count > 0)
+ if (amdgpu_ras_eeprom_process_recods(&con->eeprom_control,
+
&data->bps[control->num_recs],
+ true,
+ save_count)) {
+ DRM_ERROR("Failed to save EEPROM table data!");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * read error record array in eeprom and reserve enough space for
+ * storing new bad pages
+ */
+static int amdgpu_ras_load_bad_pages(struct amdgpu_device *adev)
+{
+ struct amdgpu_ras_eeprom_control *control =
+ &adev->psp.ras.ras->eeprom_control;
+ struct eeprom_table_record *bps = NULL;
+ int ret = 0;
+
+ /* no bad page record, skip eeprom access */
+ if (!control->num_recs)
+ return ret;
+
+ bps = kcalloc(control->num_recs, sizeof(*bps), GFP_KERNEL);
+ if (!bps)
+ return -ENOMEM;
+
+ if (amdgpu_ras_eeprom_process_recods(control, bps, false,
+ control->num_recs)) {
+ DRM_ERROR("Failed to load EEPROM table records!");
+ ret = -EIO;
+ goto out;
+ }
+
+ ret = amdgpu_ras_add_bad_pages(adev, bps, control->num_recs);
+
+out:
+ kfree(bps);
+ return ret;
+}
+
/* called in gpu recovery/init */
int amdgpu_ras_reserve_bad_pages(struct amdgpu_device *adev)
{
@@ -1371,7 +1434,7 @@ int amdgpu_ras_reserve_bad_pages(struct amdgpu_device
*adev)
struct ras_err_handler_data *data;
uint64_t bp;
struct amdgpu_bo *bo;
- int i;
+ int i, ret = 0;
if (!con || !con->eh_data)
return 0;
@@ -1391,9 +1454,12 @@ int amdgpu_ras_reserve_bad_pages(struct amdgpu_device
*adev)
data->bps_bo[i] = bo;
data->last_reserved = i + 1;
}
+
+ /* continue to save bad pages to eeprom even reesrve_vram fails */
+ ret = amdgpu_ras_save_bad_pages(adev);
out:
mutex_unlock(&con->recovery_lock);
- return 0;
+ return ret;
}
/* called when driver unload */
@@ -1425,33 +1491,11 @@ static int amdgpu_ras_release_bad_pages(struct
amdgpu_device *adev)
return 0;
}
-static int amdgpu_ras_save_bad_pages(struct amdgpu_device *adev)
-{
- /* TODO
- * write the array to eeprom when SMU disabled.
- */
- return 0;
-}
-
-/*
- * read error record array in eeprom and reserve enough space for
- * storing new bad pages
- */
-static int amdgpu_ras_load_bad_pages(struct amdgpu_device *adev)
-{
- struct eeprom_table_record *bps = NULL;
- int ret;
-
- ret = amdgpu_ras_add_bad_pages(adev, bps,
- adev->umc.max_ras_err_cnt_per_query);
-
- return ret;
-}
-
static int amdgpu_ras_recovery_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
struct ras_err_handler_data **data = &con->eh_data;
+ int ret;
*data = kmalloc(sizeof(**data),
GFP_KERNEL|__GFP_ZERO);
@@ -1463,8 +1507,18 @@ static int amdgpu_ras_recovery_init(struct amdgpu_device
*adev)
atomic_set(&con->in_recovery, 0);
con->adev = adev;
- amdgpu_ras_load_bad_pages(adev);
- amdgpu_ras_reserve_bad_pages(adev);
+ ret = amdgpu_ras_eeprom_init(&adev->psp.ras.ras->eeprom_control);
+ if (ret)
+ return ret;
+
+ if (adev->psp.ras.ras->eeprom_control.num_recs) {
+ ret = amdgpu_ras_load_bad_pages(adev);
+ if (ret)
+ return ret;
+ ret = amdgpu_ras_reserve_bad_pages(adev);
+ if (ret)
+ return ret;
+ }
return 0;
}
@@ -1475,7 +1529,6 @@ static int amdgpu_ras_recovery_fini(struct amdgpu_device
*adev)
struct ras_err_handler_data *data = con->eh_data;
cancel_work_sync(&con->recovery_work);
- amdgpu_ras_save_bad_pages(adev);
amdgpu_ras_release_bad_pages(adev);
mutex_lock(&con->recovery_lock);
--
2.17.1
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