[net-next-2.6.git] / drivers / gpu / drm / i915 / intel_ringbuffer.h

#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;
	enum intel_ring_id {
		RING_RENDER = 0x1,
		RING_BSD = 0x2,
	} id;
	struct		ring_regs {
			u32 ctl;
			u32 head;
			u32 tail;
			u32 start;
	} regs;
	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;
	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);
	void		(*set_tail)(struct drm_device *dev,
			u32 value);
	unsigned int	(*get_active_head)(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;

	/**
	 * Do we have some not yet emitted requests outstanding?
	 */
	bool outstanding_lazy_request;

	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);

static inline void intel_ring_emit(struct drm_device *dev,
				   struct intel_ring_buffer *ring,
				   unsigned int data)
{
	unsigned int *virt = ring->virtual_start + ring->tail;
	*virt = data;
	ring->tail += 4;
}

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);

int intel_init_render_ring_buffer(struct drm_device *dev);
int intel_init_bsd_ring_buffer(struct drm_device *dev);

#endif /* _INTEL_RINGBUFFER_H_ */
Commit	Line	Data
8187a2b7 ZN	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;
9220434a CW	13	enum intel_ring_id {
	14	RING_RENDER = 0x1,
	15	RING_BSD = 0x2,
	16	} id;
8187a2b7 ZN	17	struct ring_regs {
	18	u32 ctl;
	19	u32 head;
	20	u32 tail;
	21	u32 start;
	22	} regs;
8187a2b7 ZN	23	unsigned long size;
	24	unsigned int alignment;
	25	void *virtual_start;
	26	struct drm_device *dev;
	27	struct drm_gem_object *gem_object;
	28
	29	unsigned int head;
	30	unsigned int tail;
	31	unsigned int space;
8187a2b7 ZN	32	struct intel_hw_status_page status_page;
	33
	34	u32 irq_gem_seqno; /* last seq seem at irq time */
	35	u32 waiting_gem_seqno;
	36	int user_irq_refcount;
	37	void (user_irq_get)(struct drm_device dev,
	38	struct intel_ring_buffer *ring);
	39	void (user_irq_put)(struct drm_device dev,
	40	struct intel_ring_buffer *ring);
	41	void (setup_status_page)(struct drm_device dev,
	42	struct intel_ring_buffer *ring);
	43
	44	int (init)(struct drm_device dev,
	45	struct intel_ring_buffer *ring);
	46
	47	unsigned int (get_head)(struct drm_device dev,
	48	struct intel_ring_buffer *ring);
	49	unsigned int (get_tail)(struct drm_device dev,
	50	struct intel_ring_buffer *ring);
d46eefa2 XH	51	void (set_tail)(struct drm_device dev,
d46eefa2 XH	52	u32 value);
8187a2b7 ZN	53	unsigned int (get_active_head)(struct drm_device dev,
8187a2b7 ZN	54	struct intel_ring_buffer *ring);
8187a2b7 ZN	55	void (flush)(struct drm_device dev,
	56	struct intel_ring_buffer *ring,
	57	u32 invalidate_domains,
	58	u32 flush_domains);
	59	u32 (add_request)(struct drm_device dev,
	60	struct intel_ring_buffer *ring,
	61	struct drm_file *file_priv,
	62	u32 flush_domains);
	63	u32 (get_gem_seqno)(struct drm_device dev,
	64	struct intel_ring_buffer *ring);
	65	int (dispatch_gem_execbuffer)(struct drm_device dev,
	66	struct intel_ring_buffer *ring,
	67	struct drm_i915_gem_execbuffer2 *exec,
	68	struct drm_clip_rect *cliprects,
	69	uint64_t exec_offset);
	70
	71	/**
	72	* List of objects currently involved in rendering from the
	73	* ringbuffer.
	74	*
	75	* Includes buffers having the contents of their GPU caches
	76	* flushed, not necessarily primitives. last_rendering_seqno
	77	* represents when the rendering involved will be completed.
	78	*
	79	* A reference is held on the buffer while on this list.
	80	*/
	81	struct list_head active_list;
	82
	83	/**
	84	* List of breadcrumbs associated with GPU requests currently
	85	* outstanding.
	86	*/
	87	struct list_head request_list;
	88
a6910434 DV	89	/**
	90	* Do we have some not yet emitted requests outstanding?
	91	*/
	92	bool outstanding_lazy_request;
	93
8187a2b7 ZN	94	wait_queue_head_t irq_queue;
	95	drm_local_map_t map;
	96	};
	97
	98	static inline u32
	99	intel_read_status_page(struct intel_ring_buffer *ring,
	100	int reg)
	101	{
	102	u32 *regs = ring->status_page.page_addr;
	103	return regs[reg];
	104	}
	105
	106	int intel_init_ring_buffer(struct drm_device *dev,
	107	struct intel_ring_buffer *ring);
	108	void intel_cleanup_ring_buffer(struct drm_device *dev,
	109	struct intel_ring_buffer *ring);
	110	int intel_wait_ring_buffer(struct drm_device *dev,
	111	struct intel_ring_buffer *ring, int n);
	112	int intel_wrap_ring_buffer(struct drm_device *dev,
	113	struct intel_ring_buffer *ring);
	114	void intel_ring_begin(struct drm_device *dev,
	115	struct intel_ring_buffer *ring, int n);
e898cd22 CW	116
	117	static inline void intel_ring_emit(struct drm_device *dev,
	118	struct intel_ring_buffer *ring,
	119	unsigned int data)
	120	{
	121	unsigned int *virt = ring->virtual_start + ring->tail;
	122	*virt = data;
	123	ring->tail += 4;
	124	}
	125
8187a2b7 ZN	126	void intel_fill_struct(struct drm_device *dev,
	127	struct intel_ring_buffer *ring,
	128	void *data,
	129	unsigned int len);
	130	void intel_ring_advance(struct drm_device *dev,
	131	struct intel_ring_buffer *ring);
	132
	133	u32 intel_ring_get_seqno(struct drm_device *dev,
	134	struct intel_ring_buffer *ring);
	135
5c1143bb XH	136	int intel_init_render_ring_buffer(struct drm_device *dev);
5c1143bb XH	137	int intel_init_bsd_ring_buffer(struct drm_device *dev);
8187a2b7 ZN	138
8187a2b7 ZN	139	#endif /* _INTEL_RINGBUFFER_H_ */