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drm/i915: Compact gen8_ring_sync

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Store the semaphore offset in a temporary variable to avoid
having to get the VMA offset twice.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Tvrtko Ursulin 2016-06-29 16:09:30 +01:00
parent 1b9e665064
commit c38c651b39
1 changed files with 3 additions and 4 deletions
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7
drivers/gpu/drm/i915/intel_ringbuffer.c
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@ -1547,6 +1547,7 @@ gen8_ring_sync(struct drm_i915_gem_request *waiter_req,
{
struct intel_engine_cs *waiter = waiter_req->engine;
struct drm_i915_private *dev_priv = waiter_req->i915;
u64 offset = GEN8_WAIT_OFFSET(waiter, signaller->id);
struct i915_hw_ppgtt *ppgtt;
int ret;
@ -1558,10 +1559,8 @@ gen8_ring_sync(struct drm_i915_gem_request *waiter_req,
MI_SEMAPHORE_GLOBAL_GTT |
MI_SEMAPHORE_SAD_GTE_SDD);
intel_ring_emit(waiter, seqno);
intel_ring_emit(waiter,
lower_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id)));
intel_ring_emit(waiter,
upper_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id)));
intel_ring_emit(waiter, lower_32_bits(offset));
intel_ring_emit(waiter, upper_32_bits(offset));
intel_ring_advance(waiter);
/* When the !RCS engines idle waiting upon a semaphore, they lose their