Currently dmesg doesn't warn when the number of bad pages approaches the
threshold for page retirement. WARN when the number of bad pages
is at 90% or greater for easier checks and planning, instead of waiting
until the GPU is full of bad pages

Cc: Luben Tuikov <luben.tui...@amd.com>
Cc: Mukul Joshi <mukul.jo...@amd.com>
Signed-off-by: Kent Russell <kent.russ...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
index 98732518543e..8270aad23a06 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
@@ -1077,6 +1077,16 @@ int amdgpu_ras_eeprom_init(struct 
amdgpu_ras_eeprom_control *control,
                if (res)
                        DRM_ERROR("RAS table incorrect checksum or error:%d\n",
                                  res);
+
+               /* threshold = -1 is automatic, threshold = 0 means that page
+                * retirement is disabled.
+                */
+               if (amdgpu_bad_page_threshold > 0 &&
+                   control->ras_num_recs >= 0 &&
+                   control->ras_num_recs >= (amdgpu_bad_page_threshold * 9 / 
10))
+                       DRM_WARN("RAS records:%u approaching threshold:%d",
+                                       control->ras_num_recs,
+                                       amdgpu_bad_page_threshold);
        } else if (hdr->header == RAS_TABLE_HDR_BAD &&
                   amdgpu_bad_page_threshold != 0) {
                res = __verify_ras_table_checksum(control);
-- 
2.25.1

Reply via email to