mapper.cpp revision 29a26818d7294055539167b2fbfdaa168bcf725c
1202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/* 2202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Copyright (C) 2008 The Android Open Source Project 329a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved. 4202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 5202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Licensed under the Apache License, Version 2.0 (the "License"); 6202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * you may not use this file except in compliance with the License. 7202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * You may obtain a copy of the License at 8202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 9202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * http://www.apache.org/licenses/LICENSE-2.0 10202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 11202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Unless required by applicable law or agreed to in writing, software 12202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * distributed under the License is distributed on an "AS IS" BASIS, 13202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * See the License for the specific language governing permissions and 15202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * limitations under the License. 16202a77d28ac251545f6f998a974690212309b927Iliyan Malchev */ 17202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 18202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <limits.h> 19202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <errno.h> 20202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <pthread.h> 21202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <unistd.h> 22202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <string.h> 23202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <stdarg.h> 24202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 25202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <sys/mman.h> 26202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <sys/stat.h> 27202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <sys/types.h> 28202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <sys/ioctl.h> 29202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <linux/ashmem.h> 30202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 31202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <cutils/log.h> 32202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <cutils/atomic.h> 33202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <cutils/ashmem.h> 34202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 35202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <hardware/hardware.h> 36202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <hardware/gralloc.h> 37202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <genlock.h> 38202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 39202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <linux/android_pmem.h> 40202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 41202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include "gralloc_priv.h" 42202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include "gr.h" 43202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include "alloc_controller.h" 44202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include "memalloc.h" 45202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 46202a77d28ac251545f6f998a974690212309b927Iliyan Malchevusing namespace gralloc; 47202a77d28ac251545f6f998a974690212309b927Iliyan Malchevusing android::sp; 48202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/*****************************************************************************/ 49202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 50202a77d28ac251545f6f998a974690212309b927Iliyan Malchev// Return the type of allocator - 51202a77d28ac251545f6f998a974690212309b927Iliyan Malchev// these are used for mapping/unmapping 52202a77d28ac251545f6f998a974690212309b927Iliyan Malchevstatic sp<IMemAlloc> getAllocator(int flags) 53202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 54202a77d28ac251545f6f998a974690212309b927Iliyan Malchev sp<IMemAlloc> memalloc; 55202a77d28ac251545f6f998a974690212309b927Iliyan Malchev sp<IAllocController> alloc_ctrl = IAllocController::getInstance(true); 56202a77d28ac251545f6f998a974690212309b927Iliyan Malchev memalloc = alloc_ctrl->getAllocator(flags); 57202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return memalloc; 58202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 59202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 60202a77d28ac251545f6f998a974690212309b927Iliyan Malchevstatic int gralloc_map(gralloc_module_t const* module, 6129a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle, 6229a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed void** vaddr) 63202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 64202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 65202a77d28ac251545f6f998a974690212309b927Iliyan Malchev void *mappedAddress; 66202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) && 67202a77d28ac251545f6f998a974690212309b927Iliyan Malchev !(hnd->flags & private_handle_t::PRIV_FLAGS_SECURE_BUFFER)) { 68202a77d28ac251545f6f998a974690212309b927Iliyan Malchev size_t size = hnd->size; 69202a77d28ac251545f6f998a974690212309b927Iliyan Malchev sp<IMemAlloc> memalloc = getAllocator(hnd->flags) ; 70202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int err = memalloc->map_buffer(&mappedAddress, size, 7129a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed hnd->offset, hnd->fd); 72202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if(err) { 73202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("Could not mmap handle %p, fd=%d (%s)", 7429a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed handle, hnd->fd, strerror(errno)); 75202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 76202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -errno; 77202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 78202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 79202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (mappedAddress == MAP_FAILED) { 80202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("Could not mmap handle %p, fd=%d (%s)", 8129a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed handle, hnd->fd, strerror(errno)); 82202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 83202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -errno; 84202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 85202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = intptr_t(mappedAddress) + hnd->offset; 8629a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed //LOGD("gralloc_map() succeeded fd=%d, off=%d, size=%d, vaddr=%p", 87202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // hnd->fd, hnd->offset, hnd->size, mappedAddress); 88202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 89202a77d28ac251545f6f998a974690212309b927Iliyan Malchev *vaddr = (void*)hnd->base; 90202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 91202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 92202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 93202a77d28ac251545f6f998a974690212309b927Iliyan Malchevstatic int gralloc_unmap(gralloc_module_t const* module, 9429a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle) 95202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 96202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 97202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) { 98202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int err = -EINVAL; 99202a77d28ac251545f6f998a974690212309b927Iliyan Malchev void* base = (void*)hnd->base; 100202a77d28ac251545f6f998a974690212309b927Iliyan Malchev size_t size = hnd->size; 101202a77d28ac251545f6f998a974690212309b927Iliyan Malchev sp<IMemAlloc> memalloc = getAllocator(hnd->flags) ; 102202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if(memalloc != NULL) 103202a77d28ac251545f6f998a974690212309b927Iliyan Malchev err = memalloc->unmap_buffer(base, size, hnd->offset); 104202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (err) { 105202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("Could not unmap memory at address %p", base); 106202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 107202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 108202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 109202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 110202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 111202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 112202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/*****************************************************************************/ 113202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 114202a77d28ac251545f6f998a974690212309b927Iliyan Malchevstatic pthread_mutex_t sMapLock = PTHREAD_MUTEX_INITIALIZER; 115202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 116202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/*****************************************************************************/ 117202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 118202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint gralloc_register_buffer(gralloc_module_t const* module, 11929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle) 120202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 121202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (private_handle_t::validate(handle) < 0) 122202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 123202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 124202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // In this implementation, we don't need to do anything here 125202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 126202a77d28ac251545f6f998a974690212309b927Iliyan Malchev /* NOTE: we need to initialize the buffer as not mapped/not locked 127202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * because it shouldn't when this function is called the first time 128202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * in a new process. Ideally these flags shouldn't be part of the 129202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * handle, but instead maintained in the kernel or at least 130202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * out-of-line 131202a77d28ac251545f6f998a974690212309b927Iliyan Malchev */ 132202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 133202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // if this handle was created in this process, then we keep it as is. 134202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 135202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->pid != getpid()) { 136202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 137202a77d28ac251545f6f998a974690212309b927Iliyan Malchev void *vaddr; 138202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int err = gralloc_map(module, handle, &vaddr); 139202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (err) { 140202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: gralloc_map failed", __FUNCTION__); 141202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return err; 142202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 143202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 144202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Reset the genlock private fd flag in the handle 145202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->genlockPrivFd = -1; 146202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 147202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Check if there is a valid lock attached to the handle. 148202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (-1 == hnd->genlockHandle) { 149202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: the lock is invalid.", __FUNCTION__); 150202a77d28ac251545f6f998a974690212309b927Iliyan Malchev gralloc_unmap(module, handle); 151202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 152202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 153202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 154202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 155202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Attach the genlock handle 156202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (GENLOCK_NO_ERROR != genlock_attach_lock((native_handle_t *)handle)) { 157202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: genlock_attach_lock failed", __FUNCTION__); 158202a77d28ac251545f6f998a974690212309b927Iliyan Malchev gralloc_unmap(module, handle); 159202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 160202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 161202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 162202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 163202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 164202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 165202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 166202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint gralloc_unregister_buffer(gralloc_module_t const* module, 16729a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle) 168202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 169202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (private_handle_t::validate(handle) < 0) 170202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 171202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 172202a77d28ac251545f6f998a974690212309b927Iliyan Malchev /* 173202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * If the buffer has been mapped during a lock operation, it's time 174202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * to un-map it. It's an error to be here with a locked buffer. 175202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * NOTE: the framebuffer is handled differently and is never unmapped. 176202a77d28ac251545f6f998a974690212309b927Iliyan Malchev */ 177202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 178202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 179202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 180202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // never unmap buffers that were created in this process 181202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->pid != getpid()) { 182202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->base != 0) { 183202a77d28ac251545f6f998a974690212309b927Iliyan Malchev gralloc_unmap(module, handle); 184202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 185202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = 0; 186202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Release the genlock 187202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (-1 != hnd->genlockHandle) { 188202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return genlock_release_lock((native_handle_t *)handle); 189202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else { 190202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: there was no genlock attached to this buffer", __FUNCTION__); 191202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 192202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 193202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 194202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 195202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 196202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 197202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint terminateBuffer(gralloc_module_t const* module, 19829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed private_handle_t* hnd) 199202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 200202a77d28ac251545f6f998a974690212309b927Iliyan Malchev /* 201202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * If the buffer has been mapped during a lock operation, it's time 202202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * to un-map it. It's an error to be here with a locked buffer. 203202a77d28ac251545f6f998a974690212309b927Iliyan Malchev */ 204202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 205202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->base != 0) { 206202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // this buffer was mapped, unmap it now 207202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->flags & (private_handle_t::PRIV_FLAGS_USES_PMEM | 208202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t::PRIV_FLAGS_USES_PMEM_ADSP | 209202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t::PRIV_FLAGS_USES_ASHMEM | 210202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t::PRIV_FLAGS_USES_ION)) { 211202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->pid != getpid()) { 212202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // ... unless it's a "master" pmem buffer, that is a buffer 213202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // mapped in the process it's been allocated. 214202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // (see gralloc_alloc_buffer()) 215202a77d28ac251545f6f998a974690212309b927Iliyan Malchev gralloc_unmap(module, hnd); 216202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 217202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else { 21829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed ALOGE("terminateBuffer: unmapping a non pmem/ashmem buffer flags = 0x%x", 21929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed hnd->flags); 220202a77d28ac251545f6f998a974690212309b927Iliyan Malchev gralloc_unmap(module, hnd); 221202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 222202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 223202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 224202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 225202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 226202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 227202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint gralloc_lock(gralloc_module_t const* module, 22829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle, int usage, 22929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed int l, int t, int w, int h, 23029a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed void** vaddr) 231202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 232202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (private_handle_t::validate(handle) < 0) 233202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 234202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 235202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int err = 0; 236202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 237202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (usage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) { 238202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->base == 0) { 239202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // we need to map for real 240202a77d28ac251545f6f998a974690212309b927Iliyan Malchev pthread_mutex_t* const lock = &sMapLock; 241202a77d28ac251545f6f998a974690212309b927Iliyan Malchev pthread_mutex_lock(lock); 242202a77d28ac251545f6f998a974690212309b927Iliyan Malchev err = gralloc_map(module, handle, vaddr); 243202a77d28ac251545f6f998a974690212309b927Iliyan Malchev pthread_mutex_unlock(lock); 244202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 245202a77d28ac251545f6f998a974690212309b927Iliyan Malchev *vaddr = (void*)hnd->base; 246202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 247202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Lock the buffer for read/write operation as specified. Write lock 248202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // has a higher priority over read lock. 249202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int lockType = 0; 250202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (usage & GRALLOC_USAGE_SW_WRITE_MASK) { 251202a77d28ac251545f6f998a974690212309b927Iliyan Malchev lockType = GENLOCK_WRITE_LOCK; 252202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else if (usage & GRALLOC_USAGE_SW_READ_MASK) { 253202a77d28ac251545f6f998a974690212309b927Iliyan Malchev lockType = GENLOCK_READ_LOCK; 254202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 255202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 256202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int timeout = GENLOCK_MAX_TIMEOUT; 257202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (GENLOCK_NO_ERROR != genlock_lock_buffer((native_handle_t *)handle, 25829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed (genlock_lock_type)lockType, 25929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed timeout)) { 260202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: genlock_lock_buffer (lockType=0x%x) failed", __FUNCTION__, 26129a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed lockType); 262202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 263202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else { 264202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Mark this buffer as locked for SW read/write operation. 265202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags |= private_handle_t::PRIV_FLAGS_SW_LOCK; 266202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 267202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 268202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if ((usage & GRALLOC_USAGE_SW_WRITE_MASK) && 269202a77d28ac251545f6f998a974690212309b927Iliyan Malchev !(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) { 270202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Mark the buffer to be flushed after cpu read/write 271202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags |= private_handle_t::PRIV_FLAGS_NEEDS_FLUSH; 272202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 273202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 274202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return err; 275202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 276202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 277202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint gralloc_unlock(gralloc_module_t const* module, 27829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed buffer_handle_t handle) 279202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 280202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (private_handle_t::validate(handle) < 0) 281202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 282202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 283202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)handle; 284202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 285202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (hnd->flags & private_handle_t::PRIV_FLAGS_NEEDS_FLUSH) { 286202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int err; 287202a77d28ac251545f6f998a974690212309b927Iliyan Malchev sp<IMemAlloc> memalloc = getAllocator(hnd->flags) ; 288202a77d28ac251545f6f998a974690212309b927Iliyan Malchev err = memalloc->clean_buffer((void*)hnd->base, 28929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed hnd->size, hnd->offset, hnd->fd); 290202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE_IF(err < 0, "cannot flush handle %p (offs=%x len=%x, flags = 0x%x) err=%s\n", 29129a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed hnd, hnd->offset, hnd->size, hnd->flags, strerror(errno)); 292202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags &= ~private_handle_t::PRIV_FLAGS_NEEDS_FLUSH; 293202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 294202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 295202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if ((hnd->flags & private_handle_t::PRIV_FLAGS_SW_LOCK)) { 296202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // Unlock the buffer. 297202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (GENLOCK_NO_ERROR != genlock_unlock_buffer((native_handle_t *)handle)) { 298202a77d28ac251545f6f998a974690212309b927Iliyan Malchev ALOGE("%s: genlock_unlock_buffer failed", __FUNCTION__); 299202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return -EINVAL; 300202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else 301202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags &= ~private_handle_t::PRIV_FLAGS_SW_LOCK; 302202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 303202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return 0; 304202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 305202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 306202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/*****************************************************************************/ 307202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 308202a77d28ac251545f6f998a974690212309b927Iliyan Malchevint gralloc_perform(struct gralloc_module_t const* module, 30929a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed int operation, ... ) 310202a77d28ac251545f6f998a974690212309b927Iliyan Malchev{ 311202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int res = -EINVAL; 312202a77d28ac251545f6f998a974690212309b927Iliyan Malchev va_list args; 313202a77d28ac251545f6f998a974690212309b927Iliyan Malchev va_start(args, operation); 314202a77d28ac251545f6f998a974690212309b927Iliyan Malchev switch (operation) { 315202a77d28ac251545f6f998a974690212309b927Iliyan Malchev case GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER: 316202a77d28ac251545f6f998a974690212309b927Iliyan Malchev { 317202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int fd = va_arg(args, int); 318202a77d28ac251545f6f998a974690212309b927Iliyan Malchev size_t size = va_arg(args, size_t); 319202a77d28ac251545f6f998a974690212309b927Iliyan Malchev size_t offset = va_arg(args, size_t); 320202a77d28ac251545f6f998a974690212309b927Iliyan Malchev void* base = va_arg(args, void*); 321202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int width = va_arg(args, int); 322202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int height = va_arg(args, int); 323202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int format = va_arg(args, int); 324202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 325202a77d28ac251545f6f998a974690212309b927Iliyan Malchev native_handle_t** handle = va_arg(args, native_handle_t**); 326202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int memoryFlags = va_arg(args, int); 327202a77d28ac251545f6f998a974690212309b927Iliyan Malchev private_handle_t* hnd = (private_handle_t*)native_handle_create( 32829a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed private_handle_t::sNumFds, private_handle_t::sNumInts); 329202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->magic = private_handle_t::sMagic; 330202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->fd = fd; 331202a77d28ac251545f6f998a974690212309b927Iliyan Malchev unsigned int contigFlags = GRALLOC_USAGE_PRIVATE_ADSP_HEAP | 33229a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP | 33329a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed GRALLOC_USAGE_PRIVATE_SMI_HEAP; 334202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 335202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (memoryFlags & contigFlags) { 336202a77d28ac251545f6f998a974690212309b927Iliyan Malchev // check if the buffer is a pmem buffer 337202a77d28ac251545f6f998a974690212309b927Iliyan Malchev pmem_region region; 338202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (ioctl(fd, PMEM_GET_SIZE, ®ion) < 0) 339202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags = private_handle_t::PRIV_FLAGS_USES_ION; 340202a77d28ac251545f6f998a974690212309b927Iliyan Malchev else 341202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags = private_handle_t::PRIV_FLAGS_USES_PMEM | 34229a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed private_handle_t::PRIV_FLAGS_DO_NOT_FLUSH; 343202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } else { 344202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (memoryFlags & GRALLOC_USAGE_PRIVATE_ION) 345202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags = private_handle_t::PRIV_FLAGS_USES_ION; 346202a77d28ac251545f6f998a974690212309b927Iliyan Malchev else 347202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->flags = private_handle_t::PRIV_FLAGS_USES_ASHMEM; 348202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 349202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 350202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->size = size; 351202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->offset = offset; 352202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->base = intptr_t(base) + offset; 353202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->gpuaddr = 0; 354202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->width = width; 355202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->height = height; 356202a77d28ac251545f6f998a974690212309b927Iliyan Malchev hnd->format = format; 357202a77d28ac251545f6f998a974690212309b927Iliyan Malchev *handle = (native_handle_t *)hnd; 358202a77d28ac251545f6f998a974690212309b927Iliyan Malchev res = 0; 359202a77d28ac251545f6f998a974690212309b927Iliyan Malchev break; 360202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 361202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 362202a77d28ac251545f6f998a974690212309b927Iliyan Malchev default: 363202a77d28ac251545f6f998a974690212309b927Iliyan Malchev break; 364202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 365202a77d28ac251545f6f998a974690212309b927Iliyan Malchev va_end(args); 366202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return res; 367202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 368