[Intel-gfx] [PATCH 2/2] drm/i915: Do not re-calculate num_rings locally

Tvrtko Ursulin tursulin at ursulin.net
Fri Jun 16 13:03:39 UTC 2017


From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

It is available in INTEL_INFO so use it.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index acd1da9b62a3..5224b7abb8a3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2140,7 +2140,7 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
 
 		engine->emit_breadcrumb = gen6_sema_emit_breadcrumb;
 
-		num_rings = hweight32(INTEL_INFO(dev_priv)->ring_mask) - 1;
+		num_rings = INTEL_INFO(dev_priv)->num_rings - 1;
 		if (INTEL_GEN(dev_priv) >= 8) {
 			engine->emit_breadcrumb_sz += num_rings * 6;
 		} else {
@@ -2184,8 +2184,7 @@ int intel_init_render_ring_buffer(struct intel_engine_cs *engine)
 
 			engine->semaphore.signal = gen8_rcs_signal;
 
-			num_rings =
-				hweight32(INTEL_INFO(dev_priv)->ring_mask) - 1;
+			num_rings = INTEL_INFO(dev_priv)->num_rings - 1;
 			engine->emit_breadcrumb_sz += num_rings * 8;
 		}
 	} else if (INTEL_GEN(dev_priv) >= 6) {
-- 
2.9.4



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