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From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH 13/17] drm/syncobj: Allow use of dma-fence-proxy
Date: Fri,  6 Mar 2020 13:38:48 +0000	[thread overview]
Message-ID: <20200306133852.3420322-13-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20200306133852.3420322-1-chris@chris-wilson.co.uk>

Allow the callers to supply a dma-fence-proxy for asynchronous waiting on
future fences.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/drm_syncobj.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 42d46414f767..e141db0e1eb6 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -184,6 +184,7 @@
  */
 
 #include <linux/anon_inodes.h>
+#include <linux/dma-fence-proxy.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/sched/signal.h>
@@ -324,14 +325,9 @@ void drm_syncobj_replace_fence(struct drm_syncobj *syncobj,
 	struct dma_fence *old_fence;
 	struct syncobj_wait_entry *cur, *tmp;
 
-	if (fence)
-		dma_fence_get(fence);
-
 	spin_lock(&syncobj->lock);
 
-	old_fence = rcu_dereference_protected(syncobj->fence,
-					      lockdep_is_held(&syncobj->lock));
-	rcu_assign_pointer(syncobj->fence, fence);
+	old_fence = dma_fence_replace_proxy(&syncobj->fence, fence);
 
 	if (fence != old_fence) {
 		list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node)
-- 
2.25.1

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  parent reply	other threads:[~2020-03-06 13:39 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06 13:38 [Intel-gfx] [PATCH 01/17] drm/i915/selftests: Apply a heavy handed flush to i915_active Chris Wilson
2020-03-06 13:38 ` [PATCH 02/17] drm/i915/execlists: Enable timeslice on partial virtual engine dequeue Chris Wilson
2020-03-06 13:38   ` [Intel-gfx] " Chris Wilson
2020-03-07 23:20   ` Sasha Levin
2020-03-07 23:20     ` [Intel-gfx] " Sasha Levin
2020-03-06 13:38 ` [Intel-gfx] [PATCH 03/17] drm/i915: Improve the start alignment of bonded pairs Chris Wilson
2020-03-10  9:59   ` Tvrtko Ursulin
2020-03-06 13:38 ` [Intel-gfx] [PATCH 04/17] drm/i915: Tweak scheduler's kick_submission() Chris Wilson
2020-03-10 10:07   ` Tvrtko Ursulin
2020-03-10 11:00     ` Chris Wilson
2020-03-10 11:47       ` Tvrtko Ursulin
2020-03-06 13:38 ` [Intel-gfx] [PATCH 05/17] drm/i915: Wrap i915_active in a simple kreffed struct Chris Wilson
2020-03-06 14:44   ` Mika Kuoppala
2020-03-06 13:38 ` [Intel-gfx] [PATCH 06/17] drm/i915: Extend i915_request_await_active to use all timelines Chris Wilson
2020-03-10 10:18   ` Tvrtko Ursulin
2020-03-06 13:38 ` [Intel-gfx] [PATCH 07/17] drm/i915/perf: Schedule oa_config after modifying the contexts Chris Wilson
2020-03-06 14:20   ` Lionel Landwerlin
2020-03-10 11:17   ` Chris Wilson
2020-03-10 12:01     ` Lionel Landwerlin
2020-03-06 13:38 ` [Intel-gfx] [PATCH 08/17] drm/i915/selftests: Add request throughput measurement to perf Chris Wilson
2020-03-10 10:38   ` Tvrtko Ursulin
2020-03-10 11:09     ` Chris Wilson
2020-03-10 11:58       ` Tvrtko Ursulin
2020-03-10 12:06         ` Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 09/17] dma-buf: Prettify typecasts for dma-fence-chain Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 10/17] dma-buf: Report signaled links inside dma-fence-chain Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 11/17] dma-buf: Exercise dma-fence-chain under selftests Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 12/17] dma-buf: Proxy fence, an unsignaled fence placeholder Chris Wilson
2020-03-06 13:38 ` Chris Wilson [this message]
2020-03-06 13:38 ` [Intel-gfx] [PATCH 14/17] drm/i915/gem: Teach execbuf how to wait on future syncobj Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 15/17] drm/i915/gem: Allow combining submit-fences with syncobj Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 16/17] drm/i915/gt: Declare when we enabled timeslicing Chris Wilson
2020-03-06 13:38 ` [Intel-gfx] [PATCH 17/17] drm/i915/gt: Yield the timeslice if caught waiting on a user semaphore Chris Wilson
2020-03-06 14:35 ` [Intel-gfx] [PATCH 01/17] drm/i915/selftests: Apply a heavy handed flush to i915_active Mika Kuoppala
2020-03-06 21:13 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/17] " Patchwork
2020-03-06 21:33 ` [Intel-gfx] ✗ Fi.CI.DOCS: " Patchwork
2020-03-06 21:59 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork

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