| /* |
| * Copyright (C) 2020 ARM Limited. All rights reserved. |
| * |
| * Copyright 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| |
| #include <array> |
| #include <atomic> |
| #include <chrono> |
| #include <utils/Trace.h> |
| #include <shared_mutex> |
| #include <sstream> |
| #include <sys/stat.h> |
| |
| #include "Allocator.h" |
| #include "core/mali_gralloc_bufferallocation.h" |
| #include "core/mali_gralloc_bufferdescriptor.h" |
| #include "core/format_info.h" |
| #include "allocator/mali_gralloc_ion.h" |
| #include "gralloc_priv.h" |
| #include "SharedMetadata.h" |
| |
| namespace arm |
| { |
| namespace allocator |
| { |
| namespace common |
| { |
| |
| struct BufferDetails { |
| std::string name; |
| uint64_t buffer_id; |
| std::vector<ino_t> inodes; |
| uint64_t format; |
| uint64_t usage; |
| uint32_t width; |
| uint32_t height; |
| }; |
| |
| uint64_t total_allocated = 0; |
| std::atomic<uint16_t> next_idx = 0; |
| |
| // There is no atomic rounding off for atomics so next_idx can overflow. allocated_buffers should be |
| // a power of 2. |
| std::array<BufferDetails, 2048> allocated_buffers; |
| std::shared_timed_mutex allocated_buffers_mutex; |
| static_assert((allocated_buffers.size() & (allocated_buffers.size() - 1)) == 0); |
| |
| ino_t get_inode(int fd) { |
| struct stat fd_info; |
| int error = fstat(fd, &fd_info); |
| if (error != 0) { |
| return error; |
| } |
| |
| return fd_info.st_ino; |
| } |
| |
| void allocate(const buffer_descriptor_t &bufferDescriptor, uint32_t count, IAllocator::allocate_cb hidl_cb, |
| std::function<int(const buffer_descriptor_t *, buffer_handle_t *)> fb_allocator) |
| { |
| #if DISABLE_FRAMEBUFFER_HAL |
| GRALLOC_UNUSED(fb_allocator); |
| #endif |
| ATRACE_CALL(); |
| |
| Error error = Error::NONE; |
| int stride = 0; |
| bool use_placeholder = bufferDescriptor.producer_usage & GRALLOC_USAGE_PLACEHOLDER_BUFFER; |
| std::vector<hidl_handle> grallocBuffers; |
| gralloc_buffer_descriptor_t grallocBufferDescriptor[1]; |
| |
| grallocBufferDescriptor[0] = (gralloc_buffer_descriptor_t)(&bufferDescriptor); |
| grallocBuffers.reserve(count); |
| |
| for (uint32_t i = 0; i < count; i++) |
| { |
| buffer_handle_t tmpBuffer = nullptr; |
| |
| int allocResult; |
| #if (DISABLE_FRAMEBUFFER_HAL != 1) |
| if (((bufferDescriptor.producer_usage & GRALLOC_USAGE_HW_FB) || |
| (bufferDescriptor.consumer_usage & GRALLOC_USAGE_HW_FB)) && |
| fb_allocator) |
| { |
| allocResult = fb_allocator(&bufferDescriptor, &tmpBuffer); |
| } |
| else |
| #endif |
| { |
| allocResult = mali_gralloc_buffer_allocate(grallocBufferDescriptor, 1, &tmpBuffer, nullptr, use_placeholder); |
| if (allocResult != 0) |
| { |
| MALI_GRALLOC_LOGE("%s, buffer allocation failed with %d", __func__, allocResult); |
| error = Error::NO_RESOURCES; |
| break; |
| } |
| auto hnd = const_cast<private_handle_t *>(reinterpret_cast<const private_handle_t *>(tmpBuffer)); |
| hnd->imapper_version = HIDL_MAPPER_VERSION_SCALED; |
| |
| // 4k is rougly 7.9 MB with one byte per pixel. We are |
| // assuming that the reserved region might be needed for |
| // dynamic HDR and that represents the largest size. |
| uint64_t max_reserved_region_size = 8ull * 1024 * 1024; |
| hnd->reserved_region_size = bufferDescriptor.reserved_size; |
| if (hnd->reserved_region_size > max_reserved_region_size) { |
| MALI_GRALLOC_LOGE("%s, Requested reserved region size (%" PRIu64 ") is larger than allowed (%" PRIu64 ")", |
| __func__, hnd->reserved_region_size, max_reserved_region_size); |
| error = Error::BAD_VALUE; |
| break; |
| } |
| hnd->attr_size = mapper::common::shared_metadata_size() + hnd->reserved_region_size; |
| |
| if (hnd->get_usage() & GRALLOC_USAGE_ROIINFO) |
| { |
| hnd->attr_size += 32768; |
| } |
| |
| /* TODO: must do error checking */ |
| mali_gralloc_ion_allocate_attr(hnd); |
| |
| /* TODO: error check for failure */ |
| void* metadata_vaddr = mmap(nullptr, hnd->attr_size, PROT_READ | PROT_WRITE, |
| MAP_SHARED, hnd->get_share_attr_fd(), 0); |
| |
| memset(metadata_vaddr, 0, hnd->attr_size); |
| |
| mapper::common::shared_metadata_init(metadata_vaddr, bufferDescriptor.name); |
| |
| const uint32_t base_format = bufferDescriptor.alloc_format & MALI_GRALLOC_INTFMT_FMT_MASK; |
| const uint64_t usage = bufferDescriptor.consumer_usage | bufferDescriptor.producer_usage; |
| android_dataspace_t dataspace; |
| get_format_dataspace(base_format, usage, hnd->width, hnd->height, &dataspace); |
| |
| // TODO: set_dataspace API in mapper expects a buffer to be first imported before it can set the dataspace |
| { |
| using mapper::common::shared_metadata; |
| using mapper::common::aligned_optional; |
| using mapper::common::Dataspace; |
| (static_cast<shared_metadata*>(metadata_vaddr))->dataspace = aligned_optional(static_cast<Dataspace>(dataspace)); |
| } |
| |
| { |
| ATRACE_NAME("Update dump details"); |
| const auto fd_count = hnd->fd_count + 1 /* metadata fd */; |
| std::vector<ino_t> inodes(fd_count); |
| for (size_t idx = 0; idx < fd_count; idx++) { |
| inodes[idx] = get_inode(hnd->fds[idx]); |
| } |
| |
| auto idx = next_idx.fetch_add(1); |
| idx %= allocated_buffers.size(); |
| |
| allocated_buffers_mutex.lock_shared(); |
| allocated_buffers[idx] = |
| BufferDetails{bufferDescriptor.name, |
| hnd->backing_store_id, |
| inodes, |
| bufferDescriptor.hal_format, |
| bufferDescriptor.producer_usage, |
| bufferDescriptor.width, |
| bufferDescriptor.height}; |
| allocated_buffers_mutex.unlock_shared(); |
| |
| total_allocated++; |
| } |
| |
| munmap(metadata_vaddr, hnd->attr_size); |
| } |
| |
| int tmpStride = 0; |
| tmpStride = bufferDescriptor.pixel_stride; |
| |
| if (stride == 0) |
| { |
| stride = tmpStride; |
| } |
| else if (stride != tmpStride) |
| { |
| /* Stride must be the same for all allocations */ |
| mali_gralloc_buffer_free(tmpBuffer); |
| stride = 0; |
| error = Error::UNSUPPORTED; |
| break; |
| } |
| |
| grallocBuffers.emplace_back(hidl_handle(tmpBuffer)); |
| } |
| |
| /* Populate the array of buffers for application consumption */ |
| hidl_vec<hidl_handle> hidlBuffers; |
| if (error == Error::NONE) |
| { |
| hidlBuffers.setToExternal(grallocBuffers.data(), grallocBuffers.size()); |
| } |
| hidl_cb(error, stride, hidlBuffers); |
| |
| /* The application should import the Gralloc buffers using IMapper for |
| * further usage. Free the allocated buffers in IAllocator context |
| */ |
| for (const auto &buffer : grallocBuffers) |
| { |
| mali_gralloc_buffer_free(buffer.getNativeHandle()); |
| } |
| } |
| |
| const std::string dump() { |
| using namespace std::chrono_literals; |
| if (!allocated_buffers_mutex.try_lock_for(100ms)) { |
| return ""; |
| } |
| |
| std::stringstream ss; |
| // TODO: Add logs to indicate overflow |
| for (int i = 0; i < std::min(total_allocated, static_cast<uint64_t>(allocated_buffers.size())); i++) { |
| const auto& [name, buffer_id, inodes, format, usage, width, height] = allocated_buffers[i]; |
| ss << "buffer_id: " << buffer_id << ", inodes: "; |
| for (auto it = inodes.begin(); it != inodes.end(); it++) { |
| if (it != inodes.begin()) { |
| ss << ","; |
| } |
| ss << static_cast<int>(*it); |
| } |
| ss << ", format: 0x" << std::hex << format << std::dec; |
| ss << ", usage: 0x" << std::hex << usage << std::dec; |
| ss << ", width: " << width << ", height: " << height; |
| ss << ", name: " << name << std::endl; |
| } |
| |
| allocated_buffers_mutex.unlock(); |
| return ss.str(); |
| } |
| |
| int isSupported(buffer_descriptor_t *const bufDescriptor) { |
| // this is used as the criteria to determine which allocations succeed. |
| return mali_gralloc_derive_format_and_size(bufDescriptor); |
| } |
| |
| } // namespace common |
| } // namespace allocator |
| } // namespace arm |