1 #ifndef _INTEL_RINGBUFFER_H_
2 #define _INTEL_RINGBUFFER_H_
4 struct intel_hw_status_page
{
7 struct drm_gem_object
*obj
;
10 struct drm_i915_gem_execbuffer2
;
11 struct intel_ring_buffer
{
19 unsigned int ring_flag
;
21 unsigned int alignment
;
23 struct drm_device
*dev
;
24 struct drm_gem_object
*gem_object
;
29 struct intel_hw_status_page status_page
;
31 u32 irq_gem_seqno
; /* last seq seem at irq time */
32 u32 waiting_gem_seqno
;
33 int user_irq_refcount
;
34 void (*user_irq_get
)(struct drm_device
*dev
,
35 struct intel_ring_buffer
*ring
);
36 void (*user_irq_put
)(struct drm_device
*dev
,
37 struct intel_ring_buffer
*ring
);
38 void (*setup_status_page
)(struct drm_device
*dev
,
39 struct intel_ring_buffer
*ring
);
41 int (*init
)(struct drm_device
*dev
,
42 struct intel_ring_buffer
*ring
);
44 unsigned int (*get_head
)(struct drm_device
*dev
,
45 struct intel_ring_buffer
*ring
);
46 unsigned int (*get_tail
)(struct drm_device
*dev
,
47 struct intel_ring_buffer
*ring
);
48 unsigned int (*get_active_head
)(struct drm_device
*dev
,
49 struct intel_ring_buffer
*ring
);
50 void (*advance_ring
)(struct drm_device
*dev
,
51 struct intel_ring_buffer
*ring
);
52 void (*flush
)(struct drm_device
*dev
,
53 struct intel_ring_buffer
*ring
,
54 u32 invalidate_domains
,
56 u32 (*add_request
)(struct drm_device
*dev
,
57 struct intel_ring_buffer
*ring
,
58 struct drm_file
*file_priv
,
60 u32 (*get_gem_seqno
)(struct drm_device
*dev
,
61 struct intel_ring_buffer
*ring
);
62 int (*dispatch_gem_execbuffer
)(struct drm_device
*dev
,
63 struct intel_ring_buffer
*ring
,
64 struct drm_i915_gem_execbuffer2
*exec
,
65 struct drm_clip_rect
*cliprects
,
66 uint64_t exec_offset
);
69 * List of objects currently involved in rendering from the
72 * Includes buffers having the contents of their GPU caches
73 * flushed, not necessarily primitives. last_rendering_seqno
74 * represents when the rendering involved will be completed.
76 * A reference is held on the buffer while on this list.
78 struct list_head active_list
;
81 * List of breadcrumbs associated with GPU requests currently
84 struct list_head request_list
;
87 * Do we have some not yet emitted requests outstanding?
89 bool outstanding_lazy_request
;
91 wait_queue_head_t irq_queue
;
96 intel_read_status_page(struct intel_ring_buffer
*ring
,
99 u32
*regs
= ring
->status_page
.page_addr
;
103 int intel_init_ring_buffer(struct drm_device
*dev
,
104 struct intel_ring_buffer
*ring
);
105 void intel_cleanup_ring_buffer(struct drm_device
*dev
,
106 struct intel_ring_buffer
*ring
);
107 int intel_wait_ring_buffer(struct drm_device
*dev
,
108 struct intel_ring_buffer
*ring
, int n
);
109 int intel_wrap_ring_buffer(struct drm_device
*dev
,
110 struct intel_ring_buffer
*ring
);
111 void intel_ring_begin(struct drm_device
*dev
,
112 struct intel_ring_buffer
*ring
, int n
);
114 static inline void intel_ring_emit(struct drm_device
*dev
,
115 struct intel_ring_buffer
*ring
,
118 unsigned int *virt
= ring
->virtual_start
+ ring
->tail
;
123 void intel_fill_struct(struct drm_device
*dev
,
124 struct intel_ring_buffer
*ring
,
127 void intel_ring_advance(struct drm_device
*dev
,
128 struct intel_ring_buffer
*ring
);
130 u32
intel_ring_get_seqno(struct drm_device
*dev
,
131 struct intel_ring_buffer
*ring
);
133 extern struct intel_ring_buffer render_ring
;
134 extern struct intel_ring_buffer bsd_ring
;
136 #endif /* _INTEL_RINGBUFFER_H_ */