pb_buffer_malloc.c revision 4f25420bdd834e81a3e22733304efc5261c2998a
1b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/************************************************************************** 2b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 3b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * All Rights Reserved. 5b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 6b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Permission is hereby granted, free of charge, to any person obtaining a 7b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * copy of this software and associated documentation files (the 8b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * "Software"), to deal in the Software without restriction, including 9b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * without limitation the rights to use, copy, modify, merge, publish, 10b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * distribute, sub license, and/or sell copies of the Software, and to 11b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * permit persons to whom the Software is furnished to do so, subject to 12b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * the following conditions: 13b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 14b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * The above copyright notice and this permission notice (including the 15b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * next paragraph) shall be included in all copies or substantial portions 16b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * of the Software. 17b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 18b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 26b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca **************************************************************************/ 27b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 28b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/** 29b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * \file 30b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Implementation of malloc-based buffers to store data that can't be processed 31b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * by the hardware. 32b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 3335cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca * \author Jose Fonseca <jrfonseca@tungstengraphics.com> 34b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 35b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 36b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 379791d7f64c5a58b9c1bf32d00c71e0e031f54f70José Fonseca#include "pipe/p_debug.h" 384f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "util/u_memory.h" 39b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca#include "pb_buffer.h" 4035cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca#include "pb_bufmgr.h" 41b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 42b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 43b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecastruct malloc_buffer 44b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 451e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell struct pb_buffer base; 46b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca void *data; 47b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca}; 48b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 49b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 501e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellextern const struct pb_vtbl malloc_buffer_vtbl; 51b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 521e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstatic INLINE struct malloc_buffer * 531e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellmalloc_buffer(struct pb_buffer *buf) 54b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 55b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca assert(buf); 56b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca assert(buf->vtbl == &malloc_buffer_vtbl); 57b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca return (struct malloc_buffer *)buf; 58b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 59b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 60b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 61b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecastatic void 621e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellmalloc_buffer_destroy(struct pb_buffer *buf) 63b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 6465df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca align_free(malloc_buffer(buf)->data); 65b8dc2956df0f534924fc45287cccc04499e70959Michal Krol FREE(buf); 66b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 67b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 68b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 69b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecastatic void * 701e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellmalloc_buffer_map(struct pb_buffer *buf, 71b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca unsigned flags) 72b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 73b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca return malloc_buffer(buf)->data; 74b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 75b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 76b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 77b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecastatic void 781e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellmalloc_buffer_unmap(struct pb_buffer *buf) 79b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 80b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca /* No-op */ 81b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 82b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 83b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 84b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecastatic void 851e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellmalloc_buffer_get_base_buffer(struct pb_buffer *buf, 861e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell struct pb_buffer **base_buf, 87b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca unsigned *offset) 88b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 89b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca *base_buf = buf; 90b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca *offset = 0; 91b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 92b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 93b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 941e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellconst struct pb_vtbl 95b47836225185c8d2e2ccf3e191230304709d0a57José Fonsecamalloc_buffer_vtbl = { 961e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell malloc_buffer_destroy, 97b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca malloc_buffer_map, 98b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca malloc_buffer_unmap, 99b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca malloc_buffer_get_base_buffer 100b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca}; 101b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 102b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 1031e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstruct pb_buffer * 10465df0241465b2dae4979d71cad17b83cfd1fda11José Fonsecapb_malloc_buffer_create(size_t size, 10565df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca const struct pb_desc *desc) 106b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 107b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca struct malloc_buffer *buf; 108b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 109b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca /* TODO: do a single allocation */ 110b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 11193d727eea75812ecb21706804033a33d2e761eb8José Fonseca buf = CALLOC_STRUCT(malloc_buffer); 112b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca if(!buf) 113b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca return NULL; 1146a7820d31f9b697888ce9f9b193bacc86e646fe1Michal Krol 115dac124081d4bbc9d7527661e4a96aa78077b9f52José Fonseca buf->base.base.refcount = 1; 11665df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca buf->base.base.alignment = desc->alignment; 11765df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca buf->base.base.usage = desc->usage; 1181e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell buf->base.base.size = size; 119dac124081d4bbc9d7527661e4a96aa78077b9f52José Fonseca buf->base.vtbl = &malloc_buffer_vtbl; 1201e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell 12165df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca buf->data = align_malloc(size, desc->alignment < sizeof(void*) ? sizeof(void*) : desc->alignment); 122b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca if(!buf->data) { 1230f552f500c05d041eda751867c779a8ecc11849cJosé Fonseca FREE(buf); 124b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca return NULL; 125b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca } 126b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 127b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca return &buf->base; 128b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 12935cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 13035cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 13135cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecastatic struct pb_buffer * 13235cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecapb_malloc_buffer_create_buffer(struct pb_manager *mgr, 13335cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca size_t size, 13435cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca const struct pb_desc *desc) 13535cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca{ 13635cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca return pb_malloc_buffer_create(size, desc); 13735cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca} 13835cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 13935cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 14035cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecastatic void 14135cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecapb_malloc_bufmgr_destroy(struct pb_manager *mgr) 14235cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca{ 14335cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca /* No-op */ 14435cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca} 14535cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 14635cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 14735cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecastatic struct pb_manager 14835cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecapb_malloc_bufmgr = { 14935cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca pb_malloc_buffer_create_buffer, 15035cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca pb_malloc_bufmgr_destroy 15135cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca}; 15235cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 15335cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca 15435cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecastruct pb_manager * 15535cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonsecapb_malloc_bufmgr_create(void) 15635cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca{ 15735cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca return &pb_malloc_bufmgr; 15835cfd0a4900750f67cba4f64929ff3347f0bd46fJosé Fonseca} 159