Am 2021-10-19 um 1:50 p.m. schrieb Kent Russell:
> 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.tuikov@xxxxxxx>
> Cc: Mukul Joshi <Mukul.Joshi@xxxxxxx>
> Signed-off-by: Kent Russell <kent.russell@xxxxxxx>
> ---
> 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);
This won't work for the default setting amdgpu_bad_page_threshold=-1.
For this case, you'd have to take the threshold from
ras->bad_page_cnt_threshold.
Regards,
Felix
> } else if (hdr->header == RAS_TABLE_HDR_BAD &&
> amdgpu_bad_page_threshold != 0) {
> res = __verify_ras_table_checksum(control);
