diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fence.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fence.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index 05815c47b246..7ef075acde9c 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -527,7 +527,7 @@ static long radeon_fence_wait_seq_timeout(struct radeon_device *rdev, } /** - * radeon_fence_wait - wait for a fence to signal + * radeon_fence_wait_timeout - wait for a fence to signal with timeout * * @fence: radeon fence object * @intr: use interruptible sleep @@ -535,12 +535,15 @@ static long radeon_fence_wait_seq_timeout(struct radeon_device *rdev, * Wait for the requested fence to signal (all asics). * @intr selects whether to use interruptable (true) or non-interruptable * (false) sleep when waiting for the fence. - * Returns 0 if the fence has passed, error for all other cases. + * @timeout: maximum time to wait, or MAX_SCHEDULE_TIMEOUT for infinite wait + * Returns remaining time if the sequence number has passed, 0 when + * the wait timeout, or an error for all other cases. */ -int radeon_fence_wait(struct radeon_fence *fence, bool intr) +long radeon_fence_wait_timeout(struct radeon_fence *fence, bool intr, long timeout) { uint64_t seq[RADEON_NUM_RINGS] = {}; long r; + int r_sig; /* * This function should not be called on !radeon fences. @@ -552,15 +555,36 @@ int radeon_fence_wait(struct radeon_fence *fence, bool intr) return fence_wait(&fence->base, intr); seq[fence->ring] = fence->seq; - r = radeon_fence_wait_seq_timeout(fence->rdev, seq, intr, MAX_SCHEDULE_TIMEOUT); - if (r < 0) { + r = radeon_fence_wait_seq_timeout(fence->rdev, seq, intr, timeout); + if (r <= 0) { return r; } - r = fence_signal(&fence->base); - if (!r) + r_sig = fence_signal(&fence->base); + if (!r_sig) FENCE_TRACE(&fence->base, "signaled from fence_wait\n"); - return 0; + return r; +} + +/** + * radeon_fence_wait - wait for a fence to signal + * + * @fence: radeon fence object + * @intr: use interruptible sleep + * + * Wait for the requested fence to signal (all asics). + * @intr selects whether to use interruptable (true) or non-interruptable + * (false) sleep when waiting for the fence. + * Returns 0 if the fence has passed, error for all other cases. + */ +int radeon_fence_wait(struct radeon_fence *fence, bool intr) +{ + long r = radeon_fence_wait_timeout(fence, intr, MAX_SCHEDULE_TIMEOUT); + if (r > 0) { + return 0; + } else { + return r; + } } /** |