src/gallium/winsys/drm/radeon/core/radeon_r300.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "radeon_r300.h"
  24 #include "radeon_buffer.h"
  25
  26 #include "radeon_bo_gem.h"
  27 #include "radeon_cs_gem.h"
  28 #include "state_tracker/drm_api.h"
  29
  30 static struct r300_winsys_buffer *
  31 radeon_r300_winsys_buffer_create(struct r300_winsys_screen *rws,
  32                                  unsigned alignment,
  33                                  unsigned usage,
  34                                  unsigned size)
  35 {
  36     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
  37     struct pb_desc desc;
  38     struct pb_manager *provider;
  39     struct pb_buffer *buffer;
  40
  41     memset(&desc, 0, sizeof(desc));
  42     desc.alignment = alignment;
  43     desc.usage = usage;
  44
  45     if (usage & PIPE_BUFFER_USAGE_CONSTANT)
  46         provider = ws->mman;
  47     else if ((usage & PIPE_BUFFER_USAGE_VERTEX) ||
  48              (usage & PIPE_BUFFER_USAGE_INDEX))
  49         provider = ws->cman;
  50     else
  51         provider = ws->kman;
  52     buffer = provider->create_buffer(provider, size, &desc);
  53     if (!buffer)
  54         return NULL;
  55
  56     return radeon_libdrm_winsys_buffer(buffer);
  57 }
  58
  59 static void radeon_r300_winsys_buffer_destroy(struct r300_winsys_buffer *buf)
  60 {
  61     struct pb_buffer *_buf = radeon_pb_buffer(buf);
  62
  63     pb_destroy(_buf);
  64 }
  65 static void radeon_r300_winsys_buffer_set_tiling(struct r300_winsys_screen *rws,
  66                                                   struct r300_winsys_buffer *buf,
  67                                                   uint32_t pitch,
  68                                                   enum r300_buffer_tiling microtiled,
  69                                                   enum r300_buffer_tiling macrotiled)
  70 {
  71     struct pb_buffer *_buf = radeon_pb_buffer(buf);
  72     radeon_drm_bufmgr_set_tiling(_buf, microtiled, macrotiled, pitch);
  73 }
  74
  75 static void *radeon_r300_winsys_buffer_map(struct r300_winsys_screen *ws,
  76                                            struct r300_winsys_buffer *buf,
  77                                            unsigned usage)
  78 {
  79     struct pb_buffer *_buf = radeon_pb_buffer(buf);
  80
  81     return pb_map(_buf, usage);
  82 }
  83
  84 static void radeon_r300_winsys_buffer_unmap(struct r300_winsys_screen *ws,
  85                                             struct r300_winsys_buffer *buf)
  86 {
  87     struct pb_buffer *_buf = radeon_pb_buffer(buf);
  88
  89     pb_unmap(_buf);
  90 }
  91
  92 static void radeon_r300_winsys_buffer_reference(struct r300_winsys_screen *rws,
  93                                                 struct r300_winsys_buffer **pdst,
  94                                                 struct r300_winsys_buffer *src)
  95 {
  96     struct pb_buffer *_src = radeon_pb_buffer(src);
  97     struct pb_buffer *_dst = radeon_pb_buffer(*pdst);
  98
  99     pb_reference(&_dst, _src);
 100
 101     *pdst = radeon_libdrm_winsys_buffer(_dst);
 102 }
 103
 104 static boolean radeon_r300_winsys_is_buffer_referenced(struct r300_winsys_screen *rws,
 105                                                        struct r300_winsys_buffer *buf)
 106 {
 107     struct pb_buffer *_buf = radeon_pb_buffer(buf);
 108
 109     return radeon_drm_bufmgr_is_buffer_referenced(_buf);
 110 }
 111
 112 static struct r300_winsys_buffer *radeon_r300_winsys_buffer_from_handle(struct r300_winsys_screen *rws,
 113                                                                         struct pipe_screen *screen,
 114                                                                         struct winsys_handle *whandle,
 115                                                                         unsigned *stride)
 116 {
 117     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 118     struct pb_buffer *_buf;
 119
 120     _buf = radeon_drm_bufmgr_create_buffer_from_handle(ws->kman, whandle->handle);
 121     *stride = whandle->stride;
 122     return radeon_libdrm_winsys_buffer(_buf);
 123 }
 124
 125 static boolean radeon_r300_winsys_buffer_get_handle(struct r300_winsys_screen *rws,
 126                                                     struct r300_winsys_buffer *buffer,
 127                                                     unsigned stride,
 128                                                     struct winsys_handle *whandle)
 129 {
 130     struct pb_buffer *_buf = radeon_pb_buffer(buffer);
 131     boolean ret;
 132     ret = radeon_drm_bufmgr_get_handle(_buf, whandle);
 133     if (ret)
 134         whandle->stride = stride;
 135     return ret;
 136 }
 137
 138 static void radeon_set_flush_cb(struct r300_winsys_screen *rws,
 139                                 void (*flush_cb)(void *),
 140                                 void *data)
 141 {
 142     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 143     ws->flush_cb = flush_cb;
 144     ws->flush_data = data;
 145     radeon_cs_space_set_flush(ws->cs, flush_cb, data);
 146 }
 147
 148 static boolean radeon_add_buffer(struct r300_winsys_screen *rws,
 149                                  struct r300_winsys_buffer *buf,
 150                                  uint32_t rd,
 151                                  uint32_t wd)
 152 {
 153     struct pb_buffer *_buf = radeon_pb_buffer(buf);
 154
 155     return radeon_drm_bufmgr_add_buffer(_buf, rd, wd);
 156 }
 157
 158 static boolean radeon_validate(struct r300_winsys_screen *rws)
 159 {
 160     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 161     if (radeon_cs_space_check(ws->cs) < 0) {
 162         return FALSE;
 163     }
 164
 165     /* Things are fine, we can proceed as normal. */
 166     return TRUE;
 167 }
 168
 169 static boolean radeon_check_cs(struct r300_winsys_screen *rws, int size)
 170 {
 171     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 172     struct radeon_cs *cs = ws->cs;
 173
 174     return radeon_validate(rws) && cs->cdw + size <= cs->ndw;
 175 }
 176
 177 static void radeon_begin_cs(struct r300_winsys_screen *rws,
 178                             int size,
 179                             const char* file,
 180                             const char* function,
 181                             int line)
 182 {
 183     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 184     radeon_cs_begin(ws->cs, size, file, function, line);
 185 }
 186
 187 static void radeon_write_cs_dword(struct r300_winsys_screen *rws,
 188                                   uint32_t dword)
 189 {
 190     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 191     radeon_cs_write_dword(ws->cs, dword);
 192 }
 193
 194 static void radeon_write_cs_reloc(struct r300_winsys_screen *rws,
 195                                   struct r300_winsys_buffer *buf,
 196                                   uint32_t rd,
 197                                   uint32_t wd,
 198                                   uint32_t flags)
 199 {
 200     struct pb_buffer *_buf = radeon_pb_buffer(buf);
 201     radeon_drm_bufmgr_write_reloc(_buf, rd, wd, flags);
 202 }
 203
 204 static void radeon_reset_bos(struct r300_winsys_screen *rws)
 205 {
 206     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 207     radeon_cs_space_reset_bos(ws->cs);
 208 }
 209
 210 static void radeon_end_cs(struct r300_winsys_screen *rws,
 211                           const char* file,
 212                           const char* function,
 213                           int line)
 214 {
 215     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 216     radeon_cs_end(ws->cs, file, function, line);
 217 }
 218
 219 static void radeon_flush_cs(struct r300_winsys_screen *rws)
 220 {
 221     struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
 222     int retval;
 223
 224     /* Don't flush a zero-sized CS. */
 225     if (!ws->cs->cdw) {
 226         return;
 227     }
 228
 229     radeon_drm_bufmgr_flush_maps(ws->kman);
 230     /* Emit the CS. */
 231     retval = radeon_cs_emit(ws->cs);
 232     if (retval) {
 233         debug_printf("radeon: Bad CS, dumping...\n");
 234         radeon_cs_print(ws->cs, stderr);
 235     }
 236
 237     /* Reset CS.
 238      * Someday, when we care about performance, we should really find a way
 239      * to rotate between two or three CS objects so that the GPU can be
 240      * spinning through one CS while another one is being filled. */
 241     radeon_cs_erase(ws->cs);
 242 }
 243
 244 static uint32_t radeon_get_value(struct r300_winsys_screen *rws,
 245                              enum r300_value_id id)
 246 {
 247     struct radeon_libdrm_winsys *ws = (struct radeon_libdrm_winsys *)rws;
 248
 249     switch(id) {
 250     case R300_VID_PCI_ID:
 251         return ws->pci_id;
 252     case R300_VID_GB_PIPES:
 253         return ws->gb_pipes;
 254     case R300_VID_Z_PIPES:
 255         return ws->z_pipes;
 256     }
 257     return 0;
 258 }
 259
 260 static void
 261 radeon_winsys_destroy(struct r300_winsys_screen *rws)
 262 {
 263     struct radeon_libdrm_winsys *ws = (struct radeon_libdrm_winsys *)rws;
 264     radeon_cs_destroy(ws->cs);
 265
 266     ws->cman->destroy(ws->cman);
 267     ws->kman->destroy(ws->kman);
 268     ws->mman->destroy(ws->mman);
 269
 270     radeon_bo_manager_gem_dtor(ws->bom);
 271     radeon_cs_manager_gem_dtor(ws->csm);
 272 }
 273
 274 boolean
 275 radeon_setup_winsys(int fd, struct radeon_libdrm_winsys* ws)
 276 {
 277
 278     ws->csm = radeon_cs_manager_gem_ctor(fd);
 279     if (!ws->csm)
 280         goto fail;
 281     ws->bom = radeon_bo_manager_gem_ctor(fd);
 282     if (!ws->bom)
 283         goto fail;
 284     ws->kman = radeon_drm_bufmgr_create(ws);
 285     if (!ws->kman)
 286         goto fail;
 287
 288     ws->cman = pb_cache_manager_create(ws->kman, 100000);
 289     if (!ws->cman)
 290         goto fail;
 291
 292     ws->mman = pb_malloc_bufmgr_create();
 293     if (!ws->mman)
 294         goto fail;
 295
 296     /* Size limit on IBs is 64 kibibytes. */
 297     ws->cs = radeon_cs_create(ws->csm, 1024 * 64 / 4);
 298     if (!ws->cs)
 299         goto fail;
 300     radeon_cs_set_limit(ws->cs,
 301             RADEON_GEM_DOMAIN_GTT, ws->gart_size);
 302     radeon_cs_set_limit(ws->cs,
 303             RADEON_GEM_DOMAIN_VRAM, ws->vram_size);
 304
 305     ws->base.add_buffer = radeon_add_buffer;
 306     ws->base.validate = radeon_validate;
 307     ws->base.destroy = radeon_winsys_destroy;
 308     ws->base.check_cs = radeon_check_cs;
 309     ws->base.begin_cs = radeon_begin_cs;
 310     ws->base.write_cs_dword = radeon_write_cs_dword;
 311     ws->base.write_cs_reloc = radeon_write_cs_reloc;
 312     ws->base.end_cs = radeon_end_cs;
 313     ws->base.flush_cs = radeon_flush_cs;
 314     ws->base.reset_bos = radeon_reset_bos;
 315     ws->base.set_flush_cb = radeon_set_flush_cb;
 316     ws->base.get_value = radeon_get_value;
 317
 318     ws->base.buffer_create = radeon_r300_winsys_buffer_create;
 319     ws->base.buffer_destroy = radeon_r300_winsys_buffer_destroy;
 320     ws->base.buffer_set_tiling = radeon_r300_winsys_buffer_set_tiling;
 321     ws->base.buffer_map = radeon_r300_winsys_buffer_map;
 322     ws->base.buffer_unmap = radeon_r300_winsys_buffer_unmap;
 323     ws->base.buffer_reference = radeon_r300_winsys_buffer_reference;
 324     ws->base.buffer_from_handle = radeon_r300_winsys_buffer_from_handle;
 325     ws->base.buffer_get_handle = radeon_r300_winsys_buffer_get_handle;
 326     ws->base.is_buffer_referenced = radeon_r300_winsys_is_buffer_referenced;
 327     return TRUE;
 328
 329 fail:
 330     if (ws->csm)
 331         radeon_cs_manager_gem_dtor(ws->csm);
 332
 333     if (ws->bom)
 334         radeon_bo_manager_gem_dtor(ws->bom);
 335
 336     if (ws->cman)
 337         ws->cman->destroy(ws->cman);
 338     if (ws->kman)
 339         ws->kman->destroy(ws->kman);
 340     if (ws->mman)
 341         ws->mman->destroy(ws->mman);
 342
 343     if (ws->cs)
 344         radeon_cs_destroy(ws->cs);
 345     return FALSE;
 346 }