drm/i915/bdw: New logical ring submission mechanism

[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_lrc.h

diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h
index bf0eff4e9f088edfae395230f89b5b79979fffef..4e032875c1fdaedfe96188637175e26e05070c68 100644 (file)
--- a/drivers/gpu/drm/i915/intel_lrc.h
+++ b/drivers/gpu/drm/i915/intel_lrc.h
@@ -29,6 +29,19 @@ void intel_logical_ring_stop(struct intel_engine_cs *ring);
 void intel_logical_ring_cleanup(struct intel_engine_cs *ring);
 int intel_logical_rings_init(struct drm_device *dev);
 
+void intel_logical_ring_advance_and_submit(struct intel_ringbuffer *ringbuf);
+static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
+{
+       ringbuf->tail &= ringbuf->size - 1;
+}
+static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
+                                          u32 data)
+{
+       iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
+       ringbuf->tail += 4;
+}
+int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, int num_dwords);
+
 /* Logical Ring Contexts */
 void intel_lr_context_free(struct intel_context *ctx);
 int intel_lr_context_deferred_create(struct intel_context *ctx,