1 /*
2 * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
15 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
17 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 */
26
27 #ifndef RADEON_DRM_CS_H
28 #define RADEON_DRM_CS_H
29
30 #include "radeon_drm_bo.h"
31 #include <radeon_drm.h>
32
33 struct radeon_cs_context {
34 uint32_t buf[RADEON_MAX_CMDBUF_DWORDS];
35
36 int fd;
37 struct drm_radeon_cs cs;
38 struct drm_radeon_cs_chunk chunks[3];
39 uint64_t chunk_array[3];
40 uint32_t flags[2];
41
42 /* Relocs. */
43 unsigned nrelocs;
44 unsigned crelocs;
45 unsigned validated_crelocs;
46 struct radeon_bo **relocs_bo;
47 struct drm_radeon_cs_reloc *relocs;
48
49 /* 0 = BO not added, 1 = BO added */
50 char is_handle_added[256];
51 unsigned reloc_indices_hashlist[256];
52
53 unsigned used_vram;
54 unsigned used_gart;
55 };
56
57 struct radeon_drm_cs {
58 struct radeon_winsys_cs base;
59
60 /* We flip between these two CS. While one is being consumed
61 * by the kernel in another thread, the other one is being filled
62 * by the pipe driver. */
63 struct radeon_cs_context csc1;
64 struct radeon_cs_context csc2;
65 /* The currently-used CS. */
66 struct radeon_cs_context *csc;
67 /* The CS being currently-owned by the other thread. */
68 struct radeon_cs_context *cst;
69
70 /* The winsys. */
71 struct radeon_drm_winsys *ws;
72
73 /* Flush CS. */
74 void (*flush_cs)(void *ctx, unsigned flags);
75 void *flush_data;
76
77 pipe_thread thread;
78 int flush_started, kill_thread;
79 pipe_semaphore flush_queued, flush_completed;
80 };
81
82 int radeon_get_reloc(struct radeon_cs_context *csc, struct radeon_bo *bo);
83
84 static INLINE struct radeon_drm_cs *
radeon_drm_cs(struct radeon_winsys_cs * base)85 radeon_drm_cs(struct radeon_winsys_cs *base)
86 {
87 return (struct radeon_drm_cs*)base;
88 }
89
90 static INLINE boolean
radeon_bo_is_referenced_by_cs(struct radeon_drm_cs * cs,struct radeon_bo * bo)91 radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
92 struct radeon_bo *bo)
93 {
94 int num_refs = bo->num_cs_references;
95 return num_refs == bo->rws->num_cs ||
96 (num_refs && radeon_get_reloc(cs->csc, bo) != -1);
97 }
98
99 static INLINE boolean
radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs * cs,struct radeon_bo * bo)100 radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
101 struct radeon_bo *bo)
102 {
103 int index;
104
105 if (!bo->num_cs_references)
106 return FALSE;
107
108 index = radeon_get_reloc(cs->csc, bo);
109 if (index == -1)
110 return FALSE;
111
112 return cs->csc->relocs[index].write_domain != 0;
113 }
114
115 static INLINE boolean
radeon_bo_is_referenced_by_any_cs(struct radeon_bo * bo)116 radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
117 {
118 return bo->num_cs_references != 0;
119 }
120
121 void radeon_drm_cs_sync_flush(struct radeon_drm_cs *cs);
122 void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
123
124 #endif
125