Chris Wilson <[email protected]> writes: > Use lockdep to warn before we wait indefinitely in case we may be > waiting indefinitely. > > Suggested-by: Mika Kuoppala <[email protected]> > References: 2caffbf11762 ("drm/i915: Revoke mmaps and prevent access to fence > registers across reset") > Signed-off-by: Chris Wilson <[email protected]> > Cc: Mika Kuoppala <[email protected]>
Reviewed-by: Mika Kuoppala <[email protected]> > --- > drivers/gpu/drm/i915/i915_reset.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_reset.c > b/drivers/gpu/drm/i915/i915_reset.c > index c1b53533ada6..12e74decd7a2 100644 > --- a/drivers/gpu/drm/i915/i915_reset.c > +++ b/drivers/gpu/drm/i915/i915_reset.c > @@ -1305,6 +1305,9 @@ int i915_reset_trylock(struct drm_i915_private *i915) > struct i915_gpu_error *error = &i915->gpu_error; > int srcu; > > + might_lock(&error->reset_backoff_srcu); > + might_sleep(); > + > rcu_read_lock(); > while (test_bit(I915_RESET_BACKOFF, &error->flags)) { > rcu_read_unlock(); > -- > 2.20.1 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
