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gerrit-public.fairphone.software / kernel / msm-4.19 / 5c1143bbecf50184ff7cad6287b4e0993bacbd9f / . / drivers / gpu / drm / i915 / intel_ringbuffer.h
blob: 5603d6e945e9505cb2a3374d21956dc5a025cf79 [file] [log] [blame]
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]1#ifndef _INTEL_RINGBUFFER_H_
2#define _INTEL_RINGBUFFER_H_
3
4struct intel_hw_status_page {
5 void *page_addr;
6 unsigned int gfx_addr;
7 struct drm_gem_object *obj;
8};
9
10struct drm_i915_gem_execbuffer2;
11struct intel_ring_buffer {
12 const char *name;
Chris Wilson92204342010-09-18 11:02:01 +0100[diff] [blame]13 enum intel_ring_id {
14 RING_RENDER = 0x1,
15 RING_BSD = 0x2,
16 } id;
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]17 struct ring_regs {
18 u32 ctl;
19 u32 head;
20 u32 tail;
21 u32 start;
22 } regs;
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]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;
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]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);
51 unsigned int (*get_active_head)(struct drm_device *dev,
52 struct intel_ring_buffer *ring);
53 void (*advance_ring)(struct drm_device *dev,
54 struct intel_ring_buffer *ring);
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
Daniel Vettera6910432010-02-02 17:08:37 +0100[diff] [blame]89 /**
90 * Do we have some not yet emitted requests outstanding?
91 */
92 bool outstanding_lazy_request;
93
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]94 wait_queue_head_t irq_queue;
95 drm_local_map_t map;
96};
97
98static inline u32
99intel_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
106int intel_init_ring_buffer(struct drm_device *dev,
107 struct intel_ring_buffer *ring);
108void intel_cleanup_ring_buffer(struct drm_device *dev,
109 struct intel_ring_buffer *ring);
110int intel_wait_ring_buffer(struct drm_device *dev,
111 struct intel_ring_buffer *ring, int n);
112int intel_wrap_ring_buffer(struct drm_device *dev,
113 struct intel_ring_buffer *ring);
114void intel_ring_begin(struct drm_device *dev,
115 struct intel_ring_buffer *ring, int n);
Chris Wilsone898cd22010-08-04 15:18:14 +0100[diff] [blame]116
117static 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
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]126void intel_fill_struct(struct drm_device *dev,
127 struct intel_ring_buffer *ring,
128 void *data,
129 unsigned int len);
130void intel_ring_advance(struct drm_device *dev,
131 struct intel_ring_buffer *ring);
132
133u32 intel_ring_get_seqno(struct drm_device *dev,
134 struct intel_ring_buffer *ring);
135
Xiang, Haihao5c1143b2010-09-16 10:43:11 +0800[diff] [blame^]136int intel_init_render_ring_buffer(struct drm_device *dev);
137int intel_init_bsd_ring_buffer(struct drm_device *dev);
Zou Nan hai8187a2b2010-05-21 09:08:55 +0800[diff] [blame]138
139#endif /* _INTEL_RINGBUFFER_H_ */