pb_bufmgr_mm.c revision 77c329a2773820c57e7b286858e80a596f89ef94
1/************************************************************************** 2 * 3 * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. 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 above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28/** 29 * \file 30 * Buffer manager using the old texture memory manager. 31 * 32 * \author Jose Fonseca <jrfonseca@tungstengraphics.com> 33 */ 34 35 36#include "pipe/p_defines.h" 37#include "util/u_debug.h" 38#include "pipe/p_thread.h" 39#include "util/u_memory.h" 40#include "util/u_double_list.h" 41#include "util/u_mm.h" 42#include "pb_buffer.h" 43#include "pb_bufmgr.h" 44 45 46/** 47 * Convenience macro (type safe). 48 */ 49#define SUPER(__derived) (&(__derived)->base) 50 51 52struct mm_pb_manager 53{ 54 struct pb_manager base; 55 56 pipe_mutex mutex; 57 58 size_t size; 59 struct mem_block *heap; 60 61 size_t align2; 62 63 struct pb_buffer *buffer; 64 void *map; 65}; 66 67 68static INLINE struct mm_pb_manager * 69mm_pb_manager(struct pb_manager *mgr) 70{ 71 assert(mgr); 72 return (struct mm_pb_manager *)mgr; 73} 74 75 76struct mm_buffer 77{ 78 struct pb_buffer base; 79 80 struct mm_pb_manager *mgr; 81 82 struct mem_block *block; 83}; 84 85 86static INLINE struct mm_buffer * 87mm_buffer(struct pb_buffer *buf) 88{ 89 assert(buf); 90 return (struct mm_buffer *)buf; 91} 92 93 94static void 95mm_buffer_destroy(struct pb_buffer *buf) 96{ 97 struct mm_buffer *mm_buf = mm_buffer(buf); 98 struct mm_pb_manager *mm = mm_buf->mgr; 99 100 assert(!pipe_is_referenced(&mm_buf->base.base.reference)); 101 102 pipe_mutex_lock(mm->mutex); 103 u_mmFreeMem(mm_buf->block); 104 FREE(mm_buf); 105 pipe_mutex_unlock(mm->mutex); 106} 107 108 109static void * 110mm_buffer_map(struct pb_buffer *buf, 111 unsigned flags) 112{ 113 struct mm_buffer *mm_buf = mm_buffer(buf); 114 struct mm_pb_manager *mm = mm_buf->mgr; 115 116 return (unsigned char *) mm->map + mm_buf->block->ofs; 117} 118 119 120static void 121mm_buffer_unmap(struct pb_buffer *buf) 122{ 123 /* No-op */ 124} 125 126 127static enum pipe_error 128mm_buffer_validate(struct pb_buffer *buf, 129 struct pb_validate *vl, 130 unsigned flags) 131{ 132 struct mm_buffer *mm_buf = mm_buffer(buf); 133 struct mm_pb_manager *mm = mm_buf->mgr; 134 return pb_validate(mm->buffer, vl, flags); 135} 136 137 138static void 139mm_buffer_fence(struct pb_buffer *buf, 140 struct pipe_fence_handle *fence) 141{ 142 struct mm_buffer *mm_buf = mm_buffer(buf); 143 struct mm_pb_manager *mm = mm_buf->mgr; 144 pb_fence(mm->buffer, fence); 145} 146 147 148static void 149mm_buffer_get_base_buffer(struct pb_buffer *buf, 150 struct pb_buffer **base_buf, 151 unsigned *offset) 152{ 153 struct mm_buffer *mm_buf = mm_buffer(buf); 154 struct mm_pb_manager *mm = mm_buf->mgr; 155 pb_get_base_buffer(mm->buffer, base_buf, offset); 156 *offset += mm_buf->block->ofs; 157} 158 159 160static const struct pb_vtbl 161mm_buffer_vtbl = { 162 mm_buffer_destroy, 163 mm_buffer_map, 164 mm_buffer_unmap, 165 mm_buffer_validate, 166 mm_buffer_fence, 167 mm_buffer_get_base_buffer 168}; 169 170 171static struct pb_buffer * 172mm_bufmgr_create_buffer(struct pb_manager *mgr, 173 size_t size, 174 const struct pb_desc *desc) 175{ 176 struct mm_pb_manager *mm = mm_pb_manager(mgr); 177 struct mm_buffer *mm_buf; 178 179 /* We don't handle alignments larger then the one initially setup */ 180 assert(pb_check_alignment(desc->alignment, 1 << mm->align2)); 181 if(!pb_check_alignment(desc->alignment, 1 << mm->align2)) 182 return NULL; 183 184 pipe_mutex_lock(mm->mutex); 185 186 mm_buf = CALLOC_STRUCT(mm_buffer); 187 if (!mm_buf) { 188 pipe_mutex_unlock(mm->mutex); 189 return NULL; 190 } 191 192 pipe_reference_init(&mm_buf->base.base.reference, 1); 193 mm_buf->base.base.alignment = desc->alignment; 194 mm_buf->base.base.usage = desc->usage; 195 mm_buf->base.base.size = size; 196 197 mm_buf->base.vtbl = &mm_buffer_vtbl; 198 199 mm_buf->mgr = mm; 200 201 mm_buf->block = u_mmAllocMem(mm->heap, size, mm->align2, 0); 202 if(!mm_buf->block) { 203#if 0 204 debug_printf("warning: heap full\n"); 205 mmDumpMemInfo(mm->heap); 206#endif 207 FREE(mm_buf); 208 pipe_mutex_unlock(mm->mutex); 209 return NULL; 210 } 211 212 /* Some sanity checks */ 213 assert(0 <= (unsigned)mm_buf->block->ofs && (unsigned)mm_buf->block->ofs < mm->size); 214 assert(size <= (unsigned)mm_buf->block->size && (unsigned)mm_buf->block->ofs + (unsigned)mm_buf->block->size <= mm->size); 215 216 pipe_mutex_unlock(mm->mutex); 217 return SUPER(mm_buf); 218} 219 220 221static void 222mm_bufmgr_flush(struct pb_manager *mgr) 223{ 224 /* No-op */ 225} 226 227 228static void 229mm_bufmgr_destroy(struct pb_manager *mgr) 230{ 231 struct mm_pb_manager *mm = mm_pb_manager(mgr); 232 233 pipe_mutex_lock(mm->mutex); 234 235 u_mmDestroy(mm->heap); 236 237 pb_unmap(mm->buffer); 238 pb_reference(&mm->buffer, NULL); 239 240 pipe_mutex_unlock(mm->mutex); 241 242 FREE(mgr); 243} 244 245 246struct pb_manager * 247mm_bufmgr_create_from_buffer(struct pb_buffer *buffer, 248 size_t size, size_t align2) 249{ 250 struct mm_pb_manager *mm; 251 252 if(!buffer) 253 return NULL; 254 255 mm = CALLOC_STRUCT(mm_pb_manager); 256 if (!mm) 257 return NULL; 258 259 mm->base.destroy = mm_bufmgr_destroy; 260 mm->base.create_buffer = mm_bufmgr_create_buffer; 261 mm->base.flush = mm_bufmgr_flush; 262 263 mm->size = size; 264 mm->align2 = align2; /* 64-byte alignment */ 265 266 pipe_mutex_init(mm->mutex); 267 268 mm->buffer = buffer; 269 270 mm->map = pb_map(mm->buffer, 271 PIPE_BUFFER_USAGE_CPU_READ | 272 PIPE_BUFFER_USAGE_CPU_WRITE); 273 if(!mm->map) 274 goto failure; 275 276 mm->heap = u_mmInit(0, size); 277 if (!mm->heap) 278 goto failure; 279 280 return SUPER(mm); 281 282failure: 283if(mm->heap) 284 u_mmDestroy(mm->heap); 285 if(mm->map) 286 pb_unmap(mm->buffer); 287 if(mm) 288 FREE(mm); 289 return NULL; 290} 291 292 293struct pb_manager * 294mm_bufmgr_create(struct pb_manager *provider, 295 size_t size, size_t align2) 296{ 297 struct pb_buffer *buffer; 298 struct pb_manager *mgr; 299 struct pb_desc desc; 300 301 if(!provider) 302 return NULL; 303 304 memset(&desc, 0, sizeof(desc)); 305 desc.alignment = 1 << align2; 306 307 buffer = provider->create_buffer(provider, size, &desc); 308 if (!buffer) 309 return NULL; 310 311 mgr = mm_bufmgr_create_from_buffer(buffer, size, align2); 312 if (!mgr) { 313 pb_reference(&buffer, NULL); 314 return NULL; 315 } 316 317 return mgr; 318} 319