diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-05 09:14:10 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-05 09:54:36 (GMT) |
| commit | 90f4fcd56bda1f52381bbd5034e8fb32688e779b (patch) | |
| tree | 2cb3681f45be7e2b17a55d22a4b3d3e981796e94 /drivers/gpu/drm/i915/i915_gem.c | |
| parent | f826ee21e594438f5f87e1125e0d8f5ad49b749a (diff) | |
| download | linux-90f4fcd56bda1f52381bbd5034e8fb32688e779b.tar.xz | |
drm/i915: Remove forced stop ring on suspend/unload
Before suspending (or unloading), we would first wait upon all rendering
to be completed and then disable the rings. This later step is a remanent
from DRI1 days when we did not use request tracking for all operations
upon the ring. Now that we are sure we are waiting upon the very last
operation by the engine, we can forgo clobbering the ring registers,
though we do keep the assert that the engine is indeed idle before
sleeping.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470388464-28458-5-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index cc6d102..395f2ce 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4080,16 +4080,6 @@ struct i915_vma *i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj, return NULL; } -static void -i915_gem_stop_engines(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine; - - for_each_engine(engine, dev_priv) - dev_priv->gt.stop_engine(engine); -} - int i915_gem_suspend(struct drm_device *dev) { @@ -4118,12 +4108,6 @@ i915_gem_suspend(struct drm_device *dev) i915_gem_retire_requests(dev_priv); - /* Note that rather than stopping the engines, all we have to do - * is assert that every RING_HEAD == RING_TAIL (all execution complete) - * and similar for all logical context images (to ensure they are - * all ready for hibernation). - */ - i915_gem_stop_engines(dev); i915_gem_context_lost(dev_priv); mutex_unlock(&dev->struct_mutex); @@ -4308,10 +4292,8 @@ int i915_gem_init(struct drm_device *dev) if (!i915.enable_execlists) { dev_priv->gt.cleanup_engine = intel_engine_cleanup; - dev_priv->gt.stop_engine = intel_engine_stop; } else { dev_priv->gt.cleanup_engine = intel_logical_ring_cleanup; - dev_priv->gt.stop_engine = intel_logical_ring_stop; } /* This is just a security blanket to placate dragons. |