[Intel-gfx] [PATCH 1/2] drm/i915: Specify which engines to reset following semaphore/event lockups
Michel Thierry
michel.thierry at intel.com
Tue Mar 20 14:08:59 UTC 2018
On 3/20/2018 3:04 AM, Chris Wilson wrote:
> If the GPU is stuck waiting for an event or for a semaphore, we need to
> reset the GPU in order to recover. We have to tell the reset routine
> which engines we want reset, but we were still using the old interface
> and declaring it as "not-fatal".
>
> Fixes: 14b730fcb8d9 ("drm/i915/tdr: Prepare error handler to accept mask of hung engines")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala at intel.com>
> Cc: Michel Thierry <michel.thierry at intel.com>
Reviewed-by: Michel Thierry <michel.thierry at intel.com>
> ---
> drivers/gpu/drm/i915/intel_hangcheck.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
> index 42e45ae87393..c8ea510629fa 100644
> --- a/drivers/gpu/drm/i915/intel_hangcheck.c
> +++ b/drivers/gpu/drm/i915/intel_hangcheck.c
> @@ -246,7 +246,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
> */
> tmp = I915_READ_CTL(engine);
> if (tmp & RING_WAIT) {
> - i915_handle_error(dev_priv, 0,
> + i915_handle_error(dev_priv, BIT(engine->id),
> "Kicking stuck wait on %s",
> engine->name);
> I915_WRITE_CTL(engine, tmp);
> @@ -258,7 +258,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
> default:
> return ENGINE_DEAD;
> case 1:
> - i915_handle_error(dev_priv, 0,
> + i915_handle_error(dev_priv, ALL_ENGINES,
> "Kicking stuck semaphore on %s",
> engine->name);
> I915_WRITE_CTL(engine, tmp);
>
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