1/* 2 * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of Code Aurora Forum, Inc. nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include <cutils/log.h> 31#include <fcntl.h> 32#include "gralloc_priv.h" 33#include "alloc_controller.h" 34#include "memalloc.h" 35#include "ionalloc.h" 36#include "gr.h" 37#include "comptype.h" 38 39using namespace gralloc; 40using namespace qdutils; 41 42//Common functions 43static bool canFallback(int usage, bool triedSystem) 44{ 45 // Fallback to system heap when alloc fails unless 46 // 1. Composition type is MDP 47 // 2. Alloc from system heap was already tried 48 // 3. The heap type is requsted explicitly 49 // 4. The heap type is protected 50 // 5. The buffer is meant for external display only 51 52 if(QCCompositionType::getInstance().getCompositionType() & 53 COMPOSITION_TYPE_MDP) 54 return false; 55 if(triedSystem) 56 return false; 57 if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PROTECTED | 58 GRALLOC_USAGE_PRIVATE_CP_BUFFER)) 59 return false; 60 if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY)) 61 return false; 62 //Return true by default 63 return true; 64} 65 66static bool useUncached(int usage) 67{ 68 // System heaps cannot be uncached 69 if(usage & (GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP | 70 GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)) 71 return false; 72 if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED) 73 return true; 74 return false; 75} 76 77IAllocController* IAllocController::sController = NULL; 78IAllocController* IAllocController::getInstance(void) 79{ 80 if(sController == NULL) { 81 sController = new IonController(); 82 } 83 return sController; 84} 85 86 87//-------------- IonController-----------------------// 88IonController::IonController() 89{ 90 mIonAlloc = new IonAlloc(); 91} 92 93int IonController::allocate(alloc_data& data, int usage) 94{ 95 int ionFlags = 0; 96 int ret; 97 bool noncontig = false; 98 99 data.uncached = useUncached(usage); 100 data.allocType = 0; 101 102 if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP) 103 ionFlags |= ION_HEAP(ION_SF_HEAP_ID); 104 105 if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) { 106 ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID); 107 noncontig = true; 108 } 109 110 if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP) 111 ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID); 112 113 if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) 114 ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID); 115 116 if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP) 117 ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID); 118 119 if(usage & GRALLOC_USAGE_PRIVATE_CP_BUFFER) 120 ionFlags |= ION_SECURE; 121 122 // if no flags are set, default to 123 // SF + IOMMU heaps, so that bypass can work 124 // we can fall back to system heap if 125 // we run out. 126 if(!ionFlags) 127 ionFlags = ION_HEAP(ION_SF_HEAP_ID) | ION_HEAP(ION_IOMMU_HEAP_ID); 128 129 data.flags = ionFlags; 130 ret = mIonAlloc->alloc_buffer(data); 131 132 // Fallback 133 if(ret < 0 && canFallback(usage, 134 (ionFlags & ION_SYSTEM_HEAP_ID))) 135 { 136 ALOGW("Falling back to system heap"); 137 data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID); 138 noncontig = true; 139 ret = mIonAlloc->alloc_buffer(data); 140 } 141 142 if(ret >= 0 ) { 143 data.allocType |= private_handle_t::PRIV_FLAGS_USES_ION; 144 if(noncontig) 145 data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM; 146 if(ionFlags & ION_SECURE) 147 data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER; 148 } 149 150 return ret; 151} 152 153IMemAlloc* IonController::getAllocator(int flags) 154{ 155 IMemAlloc* memalloc = NULL; 156 if (flags & private_handle_t::PRIV_FLAGS_USES_ION) { 157 memalloc = mIonAlloc; 158 } else { 159 ALOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags); 160 } 161 162 return memalloc; 163} 164 165size_t getBufferSizeAndDimensions(int width, int height, int format, 166 int& alignedw, int &alignedh) 167{ 168 size_t size; 169 170 alignedw = ALIGN(width, 32); 171 alignedh = ALIGN(height, 32); 172 switch (format) { 173 case HAL_PIXEL_FORMAT_RGBA_8888: 174 case HAL_PIXEL_FORMAT_RGBX_8888: 175 case HAL_PIXEL_FORMAT_BGRA_8888: 176 size = alignedw * alignedh * 4; 177 break; 178 case HAL_PIXEL_FORMAT_RGB_888: 179 size = alignedw * alignedh * 3; 180 break; 181 case HAL_PIXEL_FORMAT_RGB_565: 182 case HAL_PIXEL_FORMAT_RGBA_5551: 183 case HAL_PIXEL_FORMAT_RGBA_4444: 184 size = alignedw * alignedh * 2; 185 break; 186 187 // adreno formats 188 case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO: // NV21 189 size = ALIGN(alignedw*alignedh, 4096); 190 size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096); 191 break; 192 case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED: // NV12 193 // The chroma plane is subsampled, 194 // but the pitch in bytes is unchanged 195 // The GPU needs 4K alignment, but the video decoder needs 8K 196 alignedw = ALIGN(width, 128); 197 size = ALIGN( alignedw * alignedh, 8192); 198 size += ALIGN( alignedw * ALIGN(height/2, 32), 8192); 199 break; 200 case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: 201 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 202 case HAL_PIXEL_FORMAT_YCrCb_420_SP: 203 case HAL_PIXEL_FORMAT_YV12: 204 if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) { 205 ALOGE("w or h is odd for the YV12 format"); 206 return -EINVAL; 207 } 208 alignedw = ALIGN(width, 16); 209 alignedh = height; 210 if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) { 211 // The encoder requires a 2K aligned chroma offset. 212 size = ALIGN(alignedw*alignedh, 2048) + 213 (ALIGN(alignedw/2, 16) * (alignedh/2))*2; 214 } else { 215 size = alignedw*alignedh + 216 (ALIGN(alignedw/2, 16) * (alignedh/2))*2; 217 } 218 size = ALIGN(size, 4096); 219 break; 220 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 221 case HAL_PIXEL_FORMAT_YCrCb_422_SP: 222 if(width & 1) { 223 ALOGE("width is odd for the YUV422_SP format"); 224 return -EINVAL; 225 } 226 alignedw = ALIGN(width, 16); 227 alignedh = height; 228 size = ALIGN(alignedw * alignedh * 2, 4096); 229 break; 230 default: 231 ALOGE("unrecognized pixel format: 0x%x", format); 232 return -EINVAL; 233 } 234 235 return size; 236} 237 238// Allocate buffer from width, height and format into a 239// private_handle_t. It is the responsibility of the caller 240// to free the buffer using the free_buffer function 241int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage) 242{ 243 alloc_data data; 244 int alignedw, alignedh; 245 gralloc::IAllocController* sAlloc = 246 gralloc::IAllocController::getInstance(); 247 data.base = 0; 248 data.fd = -1; 249 data.offset = 0; 250 data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh); 251 data.align = getpagesize(); 252 data.uncached = useUncached(usage); 253 int allocFlags = usage; 254 255 int err = sAlloc->allocate(data, allocFlags); 256 if (0 != err) { 257 ALOGE("%s: allocate failed", __FUNCTION__); 258 return -ENOMEM; 259 } 260 261 private_handle_t* hnd = new private_handle_t(data.fd, data.size, 262 data.allocType, 0, format, 263 alignedw, alignedh); 264 hnd->base = (int) data.base; 265 hnd->offset = data.offset; 266 hnd->gpuaddr = 0; 267 *pHnd = hnd; 268 return 0; 269} 270 271void free_buffer(private_handle_t *hnd) 272{ 273 gralloc::IAllocController* sAlloc = 274 gralloc::IAllocController::getInstance(); 275 if (hnd && hnd->fd > 0) { 276 IMemAlloc* memalloc = sAlloc->getAllocator(hnd->flags); 277 memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd); 278 } 279 if(hnd) 280 delete hnd; 281 282} 283