src/mesa/drivers/dri/radeon/radeon_cs_drm.h

   1 /*
   2  * Copyright © 2008 Nicolai Haehnle
   3  * Copyright © 2008 Jérôme Glisse
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, 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  * Authors:
  28  *      Aapo Tahkola <aet@rasterburn.org>
  29  *      Nicolai Haehnle <prefect_@gmx.net>
  30  *      Jérôme Glisse <glisse@freedesktop.org>
  31  */
  32 #ifndef RADEON_CS_H
  33 #define RADEON_CS_H
  34
  35 #include <stdint.h>
  36 #include <string.h>
  37 #include "drm.h"
  38 #include "radeon_drm.h"
  39
  40 struct radeon_cs_reloc {
  41     struct radeon_bo    *bo;
  42     uint32_t            read_domain;
  43     uint32_t            write_domain;
  44     uint32_t            flags;
  45 };
  46
  47
  48 #define RADEON_CS_SPACE_OK 0
  49 #define RADEON_CS_SPACE_OP_TO_BIG 1
  50 #define RADEON_CS_SPACE_FLUSH 2
  51
  52 struct radeon_cs_space_check {
  53     struct radeon_bo *bo;
  54     uint32_t read_domains;
  55     uint32_t write_domain;
  56     uint32_t new_accounted;
  57 };
  58
  59 #define MAX_SPACE_BOS (32)
  60
  61 struct radeon_cs_manager;
  62
  63 struct radeon_cs {
  64     struct radeon_cs_manager    *csm;
  65     void                        *relocs;
  66     uint32_t                    *packets;
  67     unsigned                    crelocs;
  68     unsigned                    relocs_total_size;
  69     unsigned                    cdw;
  70     unsigned                    ndw;
  71     int                         section;
  72     unsigned                    section_ndw;
  73     unsigned                    section_cdw;
  74     const char                  *section_file;
  75     const char                  *section_func;
  76     int                         section_line;
  77     struct radeon_cs_space_check bos[MAX_SPACE_BOS];
  78     int                         bo_count;
  79     void                        (*space_flush_fn)(void *);
  80     void                        *space_flush_data;
  81 };
  82
  83 /* cs functions */
  84 struct radeon_cs_funcs {
  85     struct radeon_cs *(*cs_create)(struct radeon_cs_manager *csm,
  86                                    uint32_t ndw);
  87     int (*cs_write_reloc)(struct radeon_cs *cs,
  88                           struct radeon_bo *bo,
  89                           uint32_t read_domain,
  90                           uint32_t write_domain,
  91                           uint32_t flags);
  92     int (*cs_begin)(struct radeon_cs *cs,
  93                     uint32_t ndw,
  94                     const char *file,
  95                     const char *func,
  96                     int line);
  97     int (*cs_end)(struct radeon_cs *cs,
  98                   const char *file,
  99                   const char *func,
 100                   int line);
 101     int (*cs_emit)(struct radeon_cs *cs);
 102     int (*cs_destroy)(struct radeon_cs *cs);
 103     int (*cs_erase)(struct radeon_cs *cs);
 104     int (*cs_need_flush)(struct radeon_cs *cs);
 105     void (*cs_print)(struct radeon_cs *cs, FILE *file);
 106 };
 107
 108 struct radeon_cs_manager {
 109     struct radeon_cs_funcs  *funcs;
 110     int                     fd;
 111     int32_t vram_limit, gart_limit;
 112     int32_t vram_write_used, gart_write_used;
 113     int32_t read_used;
 114 };
 115
 116 static inline struct radeon_cs *radeon_cs_create(struct radeon_cs_manager *csm,
 117                                                  uint32_t ndw)
 118 {
 119     return csm->funcs->cs_create(csm, ndw);
 120 }
 121
 122 static inline int radeon_cs_write_reloc(struct radeon_cs *cs,
 123                                         struct radeon_bo *bo,
 124                                         uint32_t read_domain,
 125                                         uint32_t write_domain,
 126                                         uint32_t flags)
 127 {
 128     return cs->csm->funcs->cs_write_reloc(cs,
 129                                           bo,
 130                                           read_domain,
 131                                           write_domain,
 132                                           flags);
 133 }
 134
 135 static inline int radeon_cs_begin(struct radeon_cs *cs,
 136                                   uint32_t ndw,
 137                                   const char *file,
 138                                   const char *func,
 139                                   int line)
 140 {
 141     return cs->csm->funcs->cs_begin(cs, ndw, file, func, line);
 142 }
 143
 144 static inline int radeon_cs_end(struct radeon_cs *cs,
 145                                 const char *file,
 146                                 const char *func,
 147                                 int line)
 148 {
 149     return cs->csm->funcs->cs_end(cs, file, func, line);
 150 }
 151
 152 static inline int radeon_cs_emit(struct radeon_cs *cs)
 153 {
 154     return cs->csm->funcs->cs_emit(cs);
 155 }
 156
 157 static inline int radeon_cs_destroy(struct radeon_cs *cs)
 158 {
 159     return cs->csm->funcs->cs_destroy(cs);
 160 }
 161
 162 static inline int radeon_cs_erase(struct radeon_cs *cs)
 163 {
 164     return cs->csm->funcs->cs_erase(cs);
 165 }
 166
 167 static inline int radeon_cs_need_flush(struct radeon_cs *cs)
 168 {
 169     return cs->csm->funcs->cs_need_flush(cs);
 170 }
 171
 172 static inline void radeon_cs_print(struct radeon_cs *cs, FILE *file)
 173 {
 174     cs->csm->funcs->cs_print(cs, file);
 175 }
 176
 177 static inline void radeon_cs_set_limit(struct radeon_cs *cs, uint32_t domain, uint32_t limit)
 178 {
 179
 180     if (domain == RADEON_GEM_DOMAIN_VRAM)
 181         cs->csm->vram_limit = limit;
 182     else
 183         cs->csm->gart_limit = limit;
 184 }
 185
 186 static inline void radeon_cs_write_dword(struct radeon_cs *cs, uint32_t dword)
 187 {
 188     cs->packets[cs->cdw++] = dword;
 189     if (cs->section) {
 190         cs->section_cdw++;
 191     }
 192 }
 193
 194 static inline void radeon_cs_write_qword(struct radeon_cs *cs, uint64_t qword)
 195 {
 196
 197     memcpy(cs->packets + cs->cdw, &qword, sizeof(qword));
 198     cs->cdw+=2;
 199     if (cs->section) {
 200         cs->section_cdw+=2;
 201     }
 202 }
 203
 204 static inline void radeon_cs_write_table(struct radeon_cs *cs, void *data, uint32_t size)
 205 {
 206     memcpy(cs->packets + cs->cdw, data, size * 4);
 207     cs->cdw += size;
 208     if (cs->section) {
 209             cs->section_cdw += size;
 210     }
 211 }
 212
 213 static inline void radeon_cs_space_set_flush(struct radeon_cs *cs, void (*fn)(void *), void *data)
 214 {
 215     cs->space_flush_fn = fn;
 216     cs->space_flush_data = data;
 217 }
 218
 219
 220 /*
 221  * add a persistent BO to the list
 222  * a persistent BO is one that will be referenced across flushes,
 223  * i.e. colorbuffer, textures etc.
 224  * They get reset when a new "operation" happens, where an operation
 225  * is a state emission with a color/textures etc followed by a bunch of vertices.
 226  */
 227 void radeon_cs_space_add_persistent_bo(struct radeon_cs *cs,
 228                                        struct radeon_bo *bo,
 229                                        uint32_t read_domains,
 230                                        uint32_t write_domain);
 231
 232 /* reset the persistent BO list */
 233 void radeon_cs_space_reset_bos(struct radeon_cs *cs);
 234
 235 /* do a space check with the current persistent BO list */
 236 int radeon_cs_space_check(struct radeon_cs *cs);
 237
 238 /* do a space check with the current persistent BO list and a temporary BO
 239  * a temporary BO is like a DMA buffer, which  gets flushed with the
 240  * command buffer */
 241 int radeon_cs_space_check_with_bo(struct radeon_cs *cs,
 242                                   struct radeon_bo *bo,
 243                                   uint32_t read_domains,
 244                                   uint32_t write_domain);
 245
 246 #endif