1 files changed, 36 insertions, 30 deletions

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 525e7d3edda8..9725f783db20 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -7,25 +7,31 @@ struct  intel_hw_status_page {
         struct          drm_gem_object *obj;
 };
 
+#define I915_READ_TAIL(ring) I915_READ(RING_TAIL(ring->mmio_base))
+#define I915_WRITE_TAIL(ring, val) I915_WRITE(RING_TAIL(ring->mmio_base), val)
+#define I915_READ_START(ring) I915_READ(RING_START(ring->mmio_base))
+#define I915_WRITE_START(ring, val) I915_WRITE(RING_START(ring->mmio_base), val)
+#define I915_READ_HEAD(ring) I915_READ(RING_HEAD(ring->mmio_base))
+#define I915_WRITE_HEAD(ring, val) I915_WRITE(RING_HEAD(ring->mmio_base), val)
+#define I915_READ_CTL(ring) I915_READ(RING_CTL(ring->mmio_base))
+#define I915_WRITE_CTL(ring, val) I915_WRITE(RING_CTL(ring->mmio_base), val)
+
 struct drm_i915_gem_execbuffer2;
 struct  intel_ring_buffer {
         const char      *name;
-        struct          ring_regs {
-                        u32 ctl;
-                        u32 head;
-                        u32 tail;
-                        u32 start;
-        } regs;
-        unsigned int    ring_flag;
+        enum intel_ring_id {
+                RING_RENDER = 0x1,
+                RING_BSD = 0x2,
+        } id;
+        u32             mmio_base;
         unsigned long   size;
-        unsigned int    alignment;
         void            *virtual_start;
         struct          drm_device *dev;
         struct          drm_gem_object *gem_object;
 
         unsigned int    head;
         unsigned int    tail;
-        unsigned int    space;
+        int             space;
         struct intel_hw_status_page status_page;
 
         u32             irq_gem_seqno;          /* last seq seem at irq time */
@@ -35,30 +41,22 @@ struct  intel_ring_buffer {
                         struct intel_ring_buffer *ring);
         void            (*user_irq_put)(struct drm_device *dev,
                         struct intel_ring_buffer *ring);
-        void            (*setup_status_page)(struct drm_device *dev,
-                        struct  intel_ring_buffer *ring);
 
         int             (*init)(struct drm_device *dev,
                         struct intel_ring_buffer *ring);
 
-        unsigned int    (*get_head)(struct drm_device *dev,
-                        struct intel_ring_buffer *ring);
-        unsigned int    (*get_tail)(struct drm_device *dev,
-                        struct intel_ring_buffer *ring);
-        unsigned int    (*get_active_head)(struct drm_device *dev,
-                        struct intel_ring_buffer *ring);
-        void            (*advance_ring)(struct drm_device *dev,
-                        struct intel_ring_buffer *ring);
+        void            (*set_tail)(struct drm_device *dev,
+                                    struct intel_ring_buffer *ring,
+                                    u32 value);
         void            (*flush)(struct drm_device *dev,
                         struct intel_ring_buffer *ring,
                         u32     invalidate_domains,
                         u32     flush_domains);
         u32             (*add_request)(struct drm_device *dev,
                         struct intel_ring_buffer *ring,
-                        struct drm_file *file_priv,
                         u32 flush_domains);
-        u32             (*get_gem_seqno)(struct drm_device *dev,
-                        struct intel_ring_buffer *ring);
+        u32             (*get_seqno)(struct drm_device *dev,
+                                     struct intel_ring_buffer *ring);
         int             (*dispatch_gem_execbuffer)(struct drm_device *dev,
                         struct intel_ring_buffer *ring,
                         struct drm_i915_gem_execbuffer2 *exec,
@@ -83,6 +81,11 @@ struct  intel_ring_buffer {
          */
         struct list_head request_list;
 
+        /**
+         * Do we have some not yet emitted requests outstanding?
+         */
+        bool outstanding_lazy_request;
+
         wait_queue_head_t irq_queue;
         drm_local_map_t map;
 };
@@ -96,15 +99,13 @@ intel_read_status_page(struct intel_ring_buffer *ring,
 }
 
 int intel_init_ring_buffer(struct drm_device *dev,
-                struct intel_ring_buffer *ring);
+                           struct intel_ring_buffer *ring);
 void intel_cleanup_ring_buffer(struct drm_device *dev,
-                struct intel_ring_buffer *ring);
+                               struct intel_ring_buffer *ring);
 int intel_wait_ring_buffer(struct drm_device *dev,
-                struct intel_ring_buffer *ring, int n);
-int intel_wrap_ring_buffer(struct drm_device *dev,
-                struct intel_ring_buffer *ring);
+                           struct intel_ring_buffer *ring, int n);
 void intel_ring_begin(struct drm_device *dev,
-                struct intel_ring_buffer *ring, int n);
+                      struct intel_ring_buffer *ring, int n);
 
 static inline void intel_ring_emit(struct drm_device *dev,
                                    struct intel_ring_buffer *ring,
@@ -125,7 +126,12 @@ void intel_ring_advance(struct drm_device *dev,
 u32 intel_ring_get_seqno(struct drm_device *dev,
                 struct intel_ring_buffer *ring);
 
-extern struct intel_ring_buffer render_ring;
-extern struct intel_ring_buffer bsd_ring;
+int intel_init_render_ring_buffer(struct drm_device *dev);
+int intel_init_bsd_ring_buffer(struct drm_device *dev);
+
+u32 intel_ring_get_active_head(struct drm_device *dev,
+                               struct intel_ring_buffer *ring);
+void intel_ring_setup_status_page(struct drm_device *dev,
+                                  struct intel_ring_buffer *ring);
 
 #endif /* _INTEL_RINGBUFFER_H_ */