On 17/04/24 19:20, Michal Wajdeczko wrote:
>
> On 17.04.2024 10:41, Aravind Iddamsetty wrote:
>> This would be used in other places outside of gt_reset path.
>>
>> Cc: Lucas De Marchi
>>
>> Reviewed-by: Rodrigo Vivi
>> Signed-off-by: Aravind Iddamsetty
>> ---
>> drivers/gpu/drm/xe/xe_gt.c | 31 +--
>> drivers/gpu/drm/xe/xe_gt.h | 1 +
>> 2 files changed, 22 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
>> index cfa5da900461..59f497d575ad 100644
>> --- a/drivers/gpu/drm/xe/xe_gt.c
>> +++ b/drivers/gpu/drm/xe/xe_gt.c
>> @@ -629,6 +629,26 @@ static int do_gt_restart(struct xe_gt *gt)
>> return 0;
>> }
>>
>> +/* Idle the GT */
> as this is a public function, can we have a proper kernel-doc here?
>
> and maybe some hint what should be done if this function fails?
Ok will do.
Thanks,
Aravind.
>
>> +int xe_gt_idle(struct xe_gt *gt)
>> +{
>> +int err;
>> +
>> +xe_gt_sanitize(gt);
>> +
>> +xe_uc_gucrc_disable(>uc);
>> +xe_uc_stop_prepare(>uc);
>> +xe_gt_pagefault_reset(gt);
>> +
>> +err = xe_uc_stop(>uc);
>> +if (err)
>> +return err;
>> +
>> +xe_gt_tlb_invalidation_reset(gt);
>> +
>> +return err;
>> +}
>> +
>> static int gt_reset(struct xe_gt *gt)
>> {
>> int err;
>> @@ -645,21 +665,12 @@ static int gt_reset(struct xe_gt *gt)
>> }
>>
>> xe_pm_runtime_get(gt_to_xe(gt));
>> -xe_gt_sanitize(gt);
>>
>> err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
>> if (err)
>> goto err_msg;
>>
>> -xe_uc_gucrc_disable(>uc);
>> -xe_uc_stop_prepare(>uc);
>> -xe_gt_pagefault_reset(gt);
>> -
>> -err = xe_uc_stop(>uc);
>> -if (err)
>> -goto err_out;
>> -
>> -xe_gt_tlb_invalidation_reset(gt);
>> +xe_gt_idle(gt);
>>
>> err = do_gt_reset(gt);
>> if (err)
>> diff --git a/drivers/gpu/drm/xe/xe_gt.h b/drivers/gpu/drm/xe/xe_gt.h
>> index ed6ea8057e35..d62af1725ff6 100644
>> --- a/drivers/gpu/drm/xe/xe_gt.h
>> +++ b/drivers/gpu/drm/xe/xe_gt.h
>> @@ -43,6 +43,7 @@ int xe_gt_resume(struct xe_gt *gt);
>> void xe_gt_reset_async(struct xe_gt *gt);
>> void xe_gt_sanitize(struct xe_gt *gt);
>> void xe_gt_remove(struct xe_gt *gt);
>> +int xe_gt_idle(struct xe_gt *gt);
>>
>> /**
>> * xe_gt_any_hw_engine_by_reset_domain - scan the list of engines and
>> return the