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authorChris Wilson <chris@chris-wilson.co.uk>2018-06-27 12:53:34 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2018-06-27 19:00:22 +0100
commita61b47f672c1ebd56b273a55cfed9621448d253e (patch)
tree792445308847bdd5d0c9740e33bdc65496bc0934 /drivers/gpu/drm/i915/i915_gem.c
parent67ca07e7ac10d7cdc2aa7ac216cab7fb64c95e50 (diff)
drm/i915: Wait for engines to idle before retiring
In the next^W forthcoming patch, we will start to defer retiring the request from the engine list if it is still active on the submission backend. To preserve the semantics that after wait-for-idle completes the system is idle and fully retired, we need to therefore wait for the backends to idle before calling i915_retire_requests(). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180627115334.16282-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 858d188dd33b..5a9cae604e2b 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3810,10 +3810,13 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915, unsigned int flags)
if (err)
return err;
}
+
+ err = wait_for_engines(i915);
+ if (err)
+ return err;
+
i915_retire_requests(i915);
GEM_BUG_ON(i915->gt.active_requests);
-
- return wait_for_engines(i915);
} else {
struct intel_engine_cs *engine;
enum intel_engine_id id;
@@ -3824,9 +3827,9 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915, unsigned int flags)
if (err)
return err;
}
-
- return 0;
}
+
+ return 0;
}
static void __i915_gem_object_flush_for_display(struct drm_i915_gem_object *obj)