[PATCH 01/13] drm/i915: Consolidate write_tail vfunc initializer

Tvrtko Ursulin
2016-06-29T15:09:36Z

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

Introduce a function which initializes vfuncs mostly common
across engines and move write_tail initialization in it since
only one engine overrides the default.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 04a2d141e690..b715707947d8 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2873,6 +2873,12 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req,
return 0;
}

+static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
+ struct intel_engine_cs *engine)
+{
+ engine->write_tail = ring_write_tail;
+}
+
int intel_init_render_ring_buffer(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2886,6 +2892,8 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
engine->hw_id = 0;
engine->mmio_base = RENDER_RING_BASE;

+ intel_ring_default_vfuncs(dev_priv, engine);
+
if (INTEL_GEN(dev_priv) >= 8) {
if (i915_semaphore_is_enabled(dev_priv)) {
obj = i915_gem_object_create(dev, 4096);
@@ -2977,7 +2985,6 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
}
engine->irq_enable_mask = I915_USER_INTERRUPT;
}
- engine->write_tail = ring_write_tail;

if (IS_HASWELL(dev_priv))
engine->dispatch_execbuffer = hsw_ring_dispatch_execbuffer;
@@ -3036,7 +3043,8 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
engine->exec_id = I915_EXEC_BSD;
engine->hw_id = 1;

- engine->write_tail = ring_write_tail;
+ intel_ring_default_vfuncs(dev_priv, engine);
+
if (INTEL_GEN(dev_priv) >= 6) {
engine->mmio_base = GEN6_BSD_RING_BASE;
/* gen6 bsd needs a special wa for tail updates */
@@ -3114,9 +3122,10 @@ int intel_init_bsd2_ring_buffer(struct drm_device *dev)
engine->id = VCS2;
engine->exec_id = I915_EXEC_BSD;
engine->hw_id = 4;
-
- engine->write_tail = ring_write_tail;
engine->mmio_base = GEN8_BSD2_RING_BASE;
+
+ intel_ring_default_vfuncs(dev_priv, engine);
+
engine->flush = gen6_bsd_ring_flush;
engine->add_request = gen6_add_request;
engine->irq_seqno_barrier = gen6_seqno_barrier;
@@ -3147,9 +3156,10 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
engine->id = BCS;
engine->exec_id = I915_EXEC_BLT;
engine->hw_id = 2;
-
engine->mmio_base = BLT_RING_BASE;
- engine->write_tail = ring_write_tail;
+
+ intel_ring_default_vfuncs(dev_priv, engine);
+
engine->flush = gen6_ring_flush;
engine->add_request = gen6_add_request;
engine->irq_seqno_barrier = gen6_seqno_barrier;
@@ -3207,9 +3217,10 @@ int intel_init_vebox_ring_buffer(struct drm_device *dev)
engine->id = VECS;
engine->exec_id = I915_EXEC_VEBOX;
engine->hw_id = 3;
-
engine->mmio_base = VEBOX_RING_BASE;
- engine->write_tail = ring_write_tail;
+
+ intel_ring_default_vfuncs(dev_priv, engine);
+
engine->flush = gen6_ring_flush;
engine->add_request = gen6_add_request;
engine->irq_seqno_barrier = gen6_seqno_barrier;
--
1.9.1