From 63d874057e7faac7d4301c7a401e452df3b5908a Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 5 Mar 2020 10:42:10 +0000
Subject: drm/i915: Actually emit the await_start
Git-commit: c67b35d970ed3391069c21f3071a26f687399ab2
Patch-mainline: v5.6-rc6
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Fix the inverted test to emit the wait on the end of the previous
request if we /haven't/ already.
Fixes: 6a79d848403d ("drm/i915: Lock signaler timeline while navigating")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.5+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305104210.2619967-1-chris@chris-wilson.co.uk
(cherry picked from commit 07e9c59d63df6a1c44c1975c01827ba18b69270a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/i915_request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index dcaa85a91090..468ca1052bcb 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -821,7 +821,7 @@ i915_request_await_start(struct i915_request *rq, struct i915_request *signal)
return 0;
err = 0;
- if (intel_timeline_sync_is_later(i915_request_timeline(rq), fence))
+ if (!intel_timeline_sync_is_later(i915_request_timeline(rq), fence))
err = i915_sw_fence_await_dma_fence(&rq->submit,
fence, 0,
I915_FENCE_GFP);
--
2.28.0