237 lines
6.8 KiB
C++
237 lines
6.8 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <cutils/properties.h>
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#include <linux/android_pmem.h>
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#include "allocator.h"
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#include "gr.h"
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#include "gpu.h"
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/*****************************************************************************/
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static int gralloc_alloc_buffer(alloc_device_t* dev,
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size_t size, int usage, buffer_handle_t* pHandle);
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/*****************************************************************************/
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int fb_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device);
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static int gralloc_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device);
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extern int gralloc_lock(gralloc_module_t const* module,
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buffer_handle_t handle, int usage,
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int l, int t, int w, int h,
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void** vaddr);
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extern int gralloc_unlock(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_register_buffer(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_unregister_buffer(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_perform(struct gralloc_module_t const* module,
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int operation, ... );
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/*****************************************************************************/
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/* On-device dependency implementation */
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class PmemAllocatorDepsDeviceImpl : public PmemUserspaceAllocator::Deps,
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public PmemKernelAllocator::Deps {
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const private_module_t* module;
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virtual size_t getPmemTotalSize(int fd, size_t* size) {
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int err = 0;
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#ifndef TARGET_MSM7x27
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pmem_region region;
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err = ioctl(fd, PMEM_GET_TOTAL_SIZE, ®ion);
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if (err == 0) {
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*size = region.len;
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}
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#else
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#ifdef USE_ASHMEM
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char property[PROPERTY_VALUE_MAX];
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bool isMDPComposition = false;
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if((property_get("debug.composition.type", property, NULL) > 0) &&
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(strncmp(property, "mdp", 3) == 0))
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isMDPComposition = true;
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if (isMDPComposition) {
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*size = 23<<20; //23MB for 7x27
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} else {
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if(module != NULL)
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*size = module->info.xres * module->info.yres * 2 * 2;
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else
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return -ENOMEM;
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}
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#else
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*size = 23<<20; //23MB for 7x27
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#endif
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#endif
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return err;
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}
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virtual int connectPmem(int fd, int master_fd) {
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return ioctl(fd, PMEM_CONNECT, master_fd);
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}
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virtual int mapPmem(int fd, int offset, size_t size) {
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struct pmem_region sub = { offset, size };
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return ioctl(fd, PMEM_MAP, &sub);
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}
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virtual int unmapPmem(int fd, int offset, size_t size) {
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struct pmem_region sub = { offset, size };
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return ioctl(fd, PMEM_UNMAP, &sub);
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}
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virtual int cleanPmem(int fd, unsigned long base, int offset, size_t size) {
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struct pmem_addr pmem_addr;
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pmem_addr.vaddr = base;
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pmem_addr.offset = offset;
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pmem_addr.length = size;
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return ioctl(fd, PMEM_CLEAN_INV_CACHES, &pmem_addr);
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}
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virtual int getErrno() {
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return errno;
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}
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virtual void* mmap(void* start, size_t length, int prot, int flags, int fd,
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off_t offset) {
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return ::mmap(start, length, prot, flags, fd, offset);
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}
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virtual int munmap(void* start, size_t length) {
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return ::munmap(start, length);
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}
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virtual int open(const char* pathname, int flags, int mode) {
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return ::open(pathname, flags, mode);
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}
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virtual int close(int fd) {
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return ::close(fd);
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}
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public:
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void setModule(const private_module_t* m) {
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module = m;
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}
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};
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class GpuContextDepsDeviceImpl : public gpu_context_t::Deps {
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public:
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virtual int ashmem_create_region(const char *name, size_t size) {
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return ::ashmem_create_region(name, size);
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}
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virtual int mapFrameBufferLocked(struct private_module_t* module) {
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return ::mapFrameBufferLocked(module);
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}
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virtual int terminateBuffer(gralloc_module_t const* module,
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private_handle_t* hnd) {
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return ::terminateBuffer(module, hnd);
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}
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virtual int close(int fd) {
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return ::close(fd);
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}
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};
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static PmemAllocatorDepsDeviceImpl pmemAllocatorDeviceDepsImpl;
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static GpuContextDepsDeviceImpl gpuContextDeviceDepsImpl;
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/*****************************************************************************/
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static SimpleBestFitAllocator pmemAllocMgr;
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static PmemUserspaceAllocator pmemAllocator(pmemAllocatorDeviceDepsImpl, pmemAllocMgr,
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"/dev/pmem");
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static PmemKernelAllocator pmemAdspAllocator(pmemAllocatorDeviceDepsImpl,
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"/dev/pmem_adsp");
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/*****************************************************************************/
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static struct hw_module_methods_t gralloc_module_methods = {
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open: gralloc_device_open
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};
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struct private_module_t HAL_MODULE_INFO_SYM = {
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base: {
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common: {
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tag: HARDWARE_MODULE_TAG,
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version_major: 1,
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version_minor: 0,
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id: GRALLOC_HARDWARE_MODULE_ID,
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name: "Graphics Memory Allocator Module",
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author: "The Android Open Source Project",
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methods: &gralloc_module_methods
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},
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registerBuffer: gralloc_register_buffer,
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unregisterBuffer: gralloc_unregister_buffer,
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lock: gralloc_lock,
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unlock: gralloc_unlock,
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perform: gralloc_perform,
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},
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framebuffer: 0,
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fbFormat: 0,
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flags: 0,
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numBuffers: 0,
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bufferMask: 0,
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lock: PTHREAD_MUTEX_INITIALIZER,
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currentBuffer: 0,
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};
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/*****************************************************************************/
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int gralloc_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device)
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{
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int status = -EINVAL;
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if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
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const private_module_t* m = reinterpret_cast<const private_module_t*>(
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module);
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pmemAllocatorDeviceDepsImpl.setModule(m);
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gpu_context_t *dev;
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dev = new gpu_context_t(gpuContextDeviceDepsImpl, pmemAllocator,
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pmemAdspAllocator, m);
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*device = &dev->common;
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status = 0;
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} else {
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status = fb_device_open(module, name, device);
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}
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return status;
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}
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