diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-03-27 11:22:10 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-03-30 18:20:33 +0100 |
| commit | d75a92a81467933404547edf47ec63d58d7e2b2f (patch) | |
| tree | 0d340b0dbe7724ba931cfb3968913f506401e4c5 | |
| parent | 4b379a48ded0cb4d95471edfe91d55fe41f1d120 (diff) | |
drm/i915: Allow for different modes of interruptible i915_active_wait
Allow some users the discretion to not immediately return on a normal
signal. Hopefully, they will opt to use TASK_KILLABLE instead.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200327112212.16046-1-chris@chris-wilson.co.uk
| -rw-r--r-- | drivers/gpu/drm/i915/i915_active.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_active.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_active.c | 10 |
3 files changed, 14 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c index a0d31f7bfb42..7b685032cc1e 100644 --- a/drivers/gpu/drm/i915/i915_active.c +++ b/drivers/gpu/drm/i915/i915_active.c @@ -496,7 +496,7 @@ static int flush_lazy_signals(struct i915_active *ref) return err; } -int i915_active_wait(struct i915_active *ref) +int __i915_active_wait(struct i915_active *ref, int state) { int err; @@ -511,7 +511,9 @@ int i915_active_wait(struct i915_active *ref) if (err) return err; - if (wait_var_event_interruptible(ref, i915_active_is_idle(ref))) + if (!i915_active_is_idle(ref) && + ___wait_var_event(ref, i915_active_is_idle(ref), + state, 0, 0, schedule())) return -EINTR; flush_work(&ref->work); diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h index b3282ae7913c..4f9aa7bab514 100644 --- a/drivers/gpu/drm/i915/i915_active.h +++ b/drivers/gpu/drm/i915/i915_active.h @@ -181,7 +181,11 @@ static inline bool i915_active_has_exclusive(struct i915_active *ref) return rcu_access_pointer(ref->excl.fence); } -int i915_active_wait(struct i915_active *ref); +int __i915_active_wait(struct i915_active *ref, int state); +static inline int i915_active_wait(struct i915_active *ref) +{ + return __i915_active_wait(ref, TASK_INTERRUPTIBLE); +} int i915_sw_fence_await_active(struct i915_sw_fence *fence, struct i915_active *ref, diff --git a/drivers/gpu/drm/i915/selftests/i915_active.c b/drivers/gpu/drm/i915/selftests/i915_active.c index 54080fb4af4b..4002c984c2e0 100644 --- a/drivers/gpu/drm/i915/selftests/i915_active.c +++ b/drivers/gpu/drm/i915/selftests/i915_active.c @@ -153,7 +153,7 @@ static int live_active_wait(void *arg) if (IS_ERR(active)) return PTR_ERR(active); - i915_active_wait(&active->base); + __i915_active_wait(&active->base, TASK_UNINTERRUPTIBLE); if (!READ_ONCE(active->retired)) { struct drm_printer p = drm_err_printer(__func__); @@ -228,11 +228,11 @@ static int live_active_barrier(void *arg) } i915_active_release(&active->base); + if (err) + goto out; - if (err == 0) - err = i915_active_wait(&active->base); - - if (err == 0 && !READ_ONCE(active->retired)) { + __i915_active_wait(&active->base, TASK_UNINTERRUPTIBLE); + if (!READ_ONCE(active->retired)) { pr_err("i915_active not retired after flushing barriers!\n"); err = -EINVAL; } |