[Intel-gfx] [PATCH] drm/i915/guc: Check for wedged before doing stuff
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Thu Dec 16 08:47:49 UTC 2021
On 15/12/2021 22:45, John.C.Harrison at Intel.com wrote:
> From: John Harrison <John.C.Harrison at Intel.com>
>
> A fault injection probe test hit a BUG_ON in a GuC error path. It
> showed that the GuC code could potentially attempt to do many things
> when the device is actually wedged. So, add a check in to prevent that.
>
> Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
> ---
> 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 97311119da6f..88f002c4d41b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> @@ -1350,7 +1350,8 @@ submission_disabled(struct intel_guc *guc)
> struct i915_sched_engine * const sched_engine = guc->sched_engine;
>
> return unlikely(!sched_engine ||
> - !__tasklet_is_enabled(&sched_engine->tasklet));
> + !__tasklet_is_enabled(&sched_engine->tasklet) ||
> + test_bit(I915_WEDGED, &guc_to_gt(guc)->reset.flags));
Or intel_gt_is_wedged ?
Regards,
Tvrtko
> }
>
> static void disable_submission(struct intel_guc *guc)
>
More information about the dri-devel
mailing list