1 files changed, 124 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
new file mode 100644
index 000000000000..d5568d3766de
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -0,0 +1,124 @@
+#ifndef _INTEL_RINGBUFFER_H_
+#define _INTEL_RINGBUFFER_H_
+struct  intel_hw_status_page {
+        void            *page_addr;
+        unsigned int    gfx_addr;
+        struct          drm_gem_object *obj;
+};
+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;
+        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;
+        u32             next_seqno;
+        struct intel_hw_status_page status_page;
+        u32             irq_gem_seqno;          /* last seq seem at irq time */
+        u32             waiting_gem_seqno;
+        int             user_irq_refcount;
+        void            (*user_irq_get)(struct drm_device *dev,
+                        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            (*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);
+        int             (*dispatch_gem_execbuffer)(struct drm_device *dev,
+                        struct intel_ring_buffer *ring,
+                        struct drm_i915_gem_execbuffer2 *exec,
+                        struct drm_clip_rect *cliprects,
+                        uint64_t exec_offset);
+        /**
+         * List of objects currently involved in rendering from the
+         * ringbuffer.
+         *
+         * Includes buffers having the contents of their GPU caches
+         * flushed, not necessarily primitives.  last_rendering_seqno
+         * represents when the rendering involved will be completed.
+         *
+         * A reference is held on the buffer while on this list.
+         */
+        struct list_head active_list;
+        /**
+         * List of breadcrumbs associated with GPU requests currently
+         * outstanding.
+         */
+        struct list_head request_list;
+        wait_queue_head_t irq_queue;
+        drm_local_map_t map;
+};
+static inline u32
+intel_read_status_page(struct intel_ring_buffer *ring,
+                int reg)
+{
+        u32 *regs = ring->status_page.page_addr;
+        return regs[reg];
+}
+int intel_init_ring_buffer(struct drm_device *dev,
+                struct intel_ring_buffer *ring);
+void intel_cleanup_ring_buffer(struct drm_device *dev,
+                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);
+void intel_ring_begin(struct drm_device *dev,
+                struct intel_ring_buffer *ring, int n);
+void intel_ring_emit(struct drm_device *dev,
+                struct intel_ring_buffer *ring, u32 data);
+void intel_fill_struct(struct drm_device *dev,
+                struct intel_ring_buffer *ring,
+                void *data,
+                unsigned int len);
+void intel_ring_advance(struct drm_device *dev,
+                struct intel_ring_buffer *ring);
+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;
+#endif /* _INTEL_RINGBUFFER_H_ */

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h new file mode 100644 index 000000000000..d5568d3766de --- /dev/null +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -0,0 +1,124 @@
	1	#ifndef _INTEL_RINGBUFFER_H_
	2	#define _INTEL_RINGBUFFER_H_
	3
	4	struct intel_hw_status_page {
	5	void *page_addr;
	6	unsigned int gfx_addr;
	7	struct drm_gem_object *obj;
	8	};
	9
	10	struct drm_i915_gem_execbuffer2;
	11	struct intel_ring_buffer {
	12	const char *name;
	13	struct ring_regs {
	14	u32 ctl;
	15	u32 head;
	16	u32 tail;
	17	u32 start;
	18	} regs;
	19	unsigned int ring_flag;
	20	unsigned long size;
	21	unsigned int alignment;
	22	void *virtual_start;
	23	struct drm_device *dev;
	24	struct drm_gem_object *gem_object;
	25
	26	unsigned int head;
	27	unsigned int tail;
	28	unsigned int space;
	29	u32 next_seqno;
	30	struct intel_hw_status_page status_page;
	31
	32	u32 irq_gem_seqno; /* last seq seem at irq time */
	33	u32 waiting_gem_seqno;
	34	int user_irq_refcount;
	35	void (user_irq_get)(struct drm_device dev,
	36	struct intel_ring_buffer *ring);
	37	void (user_irq_put)(struct drm_device dev,
	38	struct intel_ring_buffer *ring);
	39	void (setup_status_page)(struct drm_device dev,
	40	struct intel_ring_buffer *ring);
	41
	42	int (init)(struct drm_device dev,
	43	struct intel_ring_buffer *ring);
	44
	45	unsigned int (get_head)(struct drm_device dev,
	46	struct intel_ring_buffer *ring);
	47	unsigned int (get_tail)(struct drm_device dev,
	48	struct intel_ring_buffer *ring);
	49	unsigned int (get_active_head)(struct drm_device dev,
	50	struct intel_ring_buffer *ring);
	51	void (advance_ring)(struct drm_device dev,
	52	struct intel_ring_buffer *ring);
	53	void (flush)(struct drm_device dev,
	54	struct intel_ring_buffer *ring,
	55	u32 invalidate_domains,
	56	u32 flush_domains);
	57	u32 (add_request)(struct drm_device dev,
	58	struct intel_ring_buffer *ring,
	59	struct drm_file *file_priv,
	60	u32 flush_domains);
	61	u32 (get_gem_seqno)(struct drm_device dev,
	62	struct intel_ring_buffer *ring);
	63	int (dispatch_gem_execbuffer)(struct drm_device dev,
	64	struct intel_ring_buffer *ring,
	65	struct drm_i915_gem_execbuffer2 *exec,
	66	struct drm_clip_rect *cliprects,
	67	uint64_t exec_offset);
	68
	69	/**
	70	* List of objects currently involved in rendering from the
	71	* ringbuffer.
	72	*
	73	* Includes buffers having the contents of their GPU caches
	74	* flushed, not necessarily primitives. last_rendering_seqno
	75	* represents when the rendering involved will be completed.
	76	*
	77	* A reference is held on the buffer while on this list.
	78	*/
	79	struct list_head active_list;
	80
	81	/**
	82	* List of breadcrumbs associated with GPU requests currently
	83	* outstanding.
	84	*/
	85	struct list_head request_list;
	86
	87	wait_queue_head_t irq_queue;
	88	drm_local_map_t map;
	89	};
	90
	91	static inline u32
	92	intel_read_status_page(struct intel_ring_buffer *ring,
	93	int reg)
	94	{
	95	u32 *regs = ring->status_page.page_addr;
	96	return regs[reg];
	97	}
	98
	99	int intel_init_ring_buffer(struct drm_device *dev,
	100	struct intel_ring_buffer *ring);
	101	void intel_cleanup_ring_buffer(struct drm_device *dev,
	102	struct intel_ring_buffer *ring);
	103	int intel_wait_ring_buffer(struct drm_device *dev,
	104	struct intel_ring_buffer *ring, int n);
	105	int intel_wrap_ring_buffer(struct drm_device *dev,
	106	struct intel_ring_buffer *ring);
	107	void intel_ring_begin(struct drm_device *dev,
	108	struct intel_ring_buffer *ring, int n);
	109	void intel_ring_emit(struct drm_device *dev,
	110	struct intel_ring_buffer *ring, u32 data);
	111	void intel_fill_struct(struct drm_device *dev,
	112	struct intel_ring_buffer *ring,
	113	void *data,
	114	unsigned int len);
	115	void intel_ring_advance(struct drm_device *dev,
	116	struct intel_ring_buffer *ring);
	117
	118	u32 intel_ring_get_seqno(struct drm_device *dev,
	119	struct intel_ring_buffer *ring);
	120
	121	extern struct intel_ring_buffer render_ring;
	122	extern struct intel_ring_buffer bsd_ring;
	123
	124	#endif /* _INTEL_RINGBUFFER_H_ */