[Intel-gfx] [PATCH] drm/i915/guc: do not capture error state on exiting context

[Andi Shyti]

Hi Andrzej,

On Mon, Sep 26, 2022 at 11:54:09PM +0200, Andrzej Hajda wrote:
> Capturing error state is time consuming (up to 350ms on DG2), so it should
> be avoided if possible. Context reset triggered by context removal is a
> good example.
> With this patch multiple igt tests will not timeout and should run faster.
> 
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1551
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3952
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5891
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6268
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6281
> Signed-off-by: Andrzej Hajda <andrzej.hajda at intel.com>

fine for me:

Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>

Just to be on the safe side, can we also have the ack from any of
the GuC folks? Daniele, John?

Andi


> ---
>  drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> index 22ba66e48a9b01..cb58029208afe1 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> @@ -4425,7 +4425,8 @@ static void guc_handle_context_reset(struct intel_guc *guc,
>  	trace_intel_context_reset(ce);
>  
>  	if (likely(!intel_context_is_banned(ce))) {
> -		capture_error_state(guc, ce);
> +		if (!intel_context_is_exiting(ce))
> +			capture_error_state(guc, ce);
>  		guc_context_replay(ce);
>  	} else {
>  		drm_info(&guc_to_gt(guc)->i915->drm,
> -- 
> 2.34.1