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
32 struct radeon_bo_item {
33 struct radeon_bo *bo;
34 union {
35 struct {
36 uint64_t priority_usage;
37 } real;
38 struct {
39 unsigned real_idx;
40 } slab;
41 } u;
42 };
43
44 struct radeon_cs_context {
45 uint32_t buf[16 * 1024];
46
47 int fd;
48 struct drm_radeon_cs cs;
49 struct drm_radeon_cs_chunk chunks[3];
50 uint64_t chunk_array[3];
51 uint32_t flags[2];
52
53 /* Buffers. */
54 unsigned max_relocs;
55 unsigned num_relocs;
56 unsigned num_validated_relocs;
57 struct radeon_bo_item *relocs_bo;
58 struct drm_radeon_cs_reloc *relocs;
59
60 unsigned num_slab_buffers;
61 unsigned max_slab_buffers;
62 struct radeon_bo_item *slab_buffers;
63
64 int reloc_indices_hashlist[4096];
65 };
66
67 struct radeon_drm_cs {
68 struct radeon_winsys_cs base;
69 enum ring_type ring_type;
70
71 /* We flip between these two CS. While one is being consumed
72 * by the kernel in another thread, the other one is being filled
73 * by the pipe driver. */
74 struct radeon_cs_context csc1;
75 struct radeon_cs_context csc2;
76 /* The currently-used CS. */
77 struct radeon_cs_context *csc;
78 /* The CS being currently-owned by the other thread. */
79 struct radeon_cs_context *cst;
80
81 /* The winsys. */
82 struct radeon_drm_winsys *ws;
83
84 /* Flush CS. */
85 void (*flush_cs)(void *ctx, unsigned flags, struct pipe_fence_handle **fence);
86 void *flush_data;
87
88 struct util_queue_fence flush_completed;
89 struct pipe_fence_handle *next_fence;
90 };
91
92 int radeon_lookup_buffer(struct radeon_cs_context *csc, struct radeon_bo *bo);
93
94 static inline struct radeon_drm_cs *
radeon_drm_cs(struct radeon_winsys_cs * base)95 radeon_drm_cs(struct radeon_winsys_cs *base)
96 {
97 return (struct radeon_drm_cs*)base;
98 }
99
100 static inline bool
radeon_bo_is_referenced_by_cs(struct radeon_drm_cs * cs,struct radeon_bo * bo)101 radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
102 struct radeon_bo *bo)
103 {
104 int num_refs = bo->num_cs_references;
105 return num_refs == bo->rws->num_cs ||
106 (num_refs && radeon_lookup_buffer(cs->csc, bo) != -1);
107 }
108
109 static inline bool
radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs * cs,struct radeon_bo * bo)110 radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
111 struct radeon_bo *bo)
112 {
113 int index;
114
115 if (!bo->num_cs_references)
116 return false;
117
118 index = radeon_lookup_buffer(cs->csc, bo);
119 if (index == -1)
120 return false;
121
122 if (!bo->handle)
123 index = cs->csc->slab_buffers[index].u.slab.real_idx;
124
125 return cs->csc->relocs[index].write_domain != 0;
126 }
127
128 static inline bool
radeon_bo_is_referenced_by_any_cs(struct radeon_bo * bo)129 radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
130 {
131 return bo->num_cs_references != 0;
132 }
133
134 void radeon_drm_cs_sync_flush(struct radeon_winsys_cs *rcs);
135 void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
136 void radeon_drm_cs_emit_ioctl_oneshot(void *job, int thread_index);
137
138 #endif
139