radeon_drm_cs.h revision bbc320a94def6178028a4c46012c737839e1cf61 
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
33struct 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[2];
39    uint64_t                    chunk_array[2];
40
41    /* Relocs. */
42    unsigned                    nrelocs;
43    unsigned                    crelocs;
44    unsigned                    validated_crelocs;
45    struct radeon_bo            **relocs_bo;
46    struct drm_radeon_cs_reloc  *relocs;
47
48    /* 0 = BO not added, 1 = BO added */
49    char                        is_handle_added[256];
50    struct drm_radeon_cs_reloc  *relocs_hashlist[256];
51    unsigned                    reloc_indices_hashlist[256];
52
53    unsigned used_vram;
54    unsigned used_gart;
55};
56
57struct 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
82int radeon_get_reloc(struct radeon_cs_context *csc, struct radeon_bo *bo);
83
84static INLINE struct radeon_drm_cs *
85radeon_drm_cs(struct radeon_winsys_cs *base)
86{
87    return (struct radeon_drm_cs*)base;
88}
89
90static INLINE boolean
91radeon_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
99static INLINE boolean
100radeon_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
115static INLINE boolean
116radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
117{
118    return bo->num_cs_references != 0;
119}
120
121void radeon_drm_cs_sync_flush(struct radeon_drm_cs *cs);
122void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
123
124#endif
125