From 7e2e69ed4678a4c660c4727e625a396b06c0c372 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Thu, 21 Oct 2021 12:35:38 +0200 Subject: drm/i915: Fix i915_request fence wait semantics MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The i915_request fence wait behaves differently for timeout = 0 compared to expected dma-fence behavior. i915 behavior: - Unsignaled: -ETIME - Signaled: 0 (= timeout) Expected: - Unsignaled: 0 - Signaled: 1 Signed-off-by: Maarten Lankhorst Acked-by: Daniel Vetter Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20211116102431.198905-6-christian.koenig@amd.com Signed-off-by: Christian König --- drivers/gpu/drm/i915/i915_request.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_request.h') diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h index dc359242d1ae..3c6e8acd1457 100644 --- a/drivers/gpu/drm/i915/i915_request.h +++ b/drivers/gpu/drm/i915/i915_request.h @@ -414,6 +414,11 @@ void i915_request_unsubmit(struct i915_request *request); void i915_request_cancel(struct i915_request *rq, int error); +long i915_request_wait_timeout(struct i915_request *rq, + unsigned int flags, + long timeout) + __attribute__((nonnull(1))); + long i915_request_wait(struct i915_request *rq, unsigned int flags, long timeout) -- cgit v1.2.3-70-g09d2