diff options
Diffstat (limited to 'GrallocHAL/src/core/mali_gralloc_reference.cpp')
| -rw-r--r-- | GrallocHAL/src/core/mali_gralloc_reference.cpp | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/GrallocHAL/src/core/mali_gralloc_reference.cpp b/GrallocHAL/src/core/mali_gralloc_reference.cpp deleted file mode 100644 index 880f838..0000000 --- a/GrallocHAL/src/core/mali_gralloc_reference.cpp +++ /dev/null @@ -1,167 +0,0 @@ -/* - * Copyright (C) 2016, 2018-2020 ARM Limited. All rights reserved. - * - * Copyright (C) 2008 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. - */ - -#include <hardware/gralloc1.h> - -#include "mali_gralloc_buffer.h" -#include "allocator/mali_gralloc_ion.h" -#include "allocator/mali_gralloc_shared_memory.h" -#include "mali_gralloc_bufferallocation.h" -#include "mali_gralloc_debug.h" -#include "mali_gralloc_reference.h" -#include "mali_gralloc_usages.h" - -static pthread_mutex_t s_map_lock = PTHREAD_MUTEX_INITIALIZER; - -int mali_gralloc_reference_retain(buffer_handle_t handle) -{ - if (private_handle_t::validate(handle) < 0) - { - MALI_GRALLOC_LOGE("Registering/Retaining invalid buffer %p, returning error", handle); - return -EINVAL; - } - - private_handle_t *hnd = (private_handle_t *)handle; - pthread_mutex_lock(&s_map_lock); - int retval = 0; - - if (hnd->allocating_pid == getpid() || hnd->remote_pid == getpid()) - { - hnd->ref_count++; - } - else - { - hnd->remote_pid = getpid(); - hnd->ref_count = 1; - - // Reset the handle bases, this is used to check if a buffer is mapped - for (int fidx = 0; fidx < hnd->fd_count; fidx++) { - hnd->bases[fidx] = 0; - } - } - - pthread_mutex_unlock(&s_map_lock); - - // TODO(b/187145254): CPU_READ/WRITE buffer is not being properly locked from - // MFC. This is a WA for the time being. - constexpr auto cpu_access_usage = ( - GRALLOC_USAGE_SW_WRITE_OFTEN | - GRALLOC_USAGE_SW_READ_OFTEN | - GRALLOC_USAGE_SW_WRITE_RARELY | - GRALLOC_USAGE_SW_READ_RARELY - ); - - if (hnd->get_usage() & cpu_access_usage) - retval = mali_gralloc_reference_map(handle); - - return retval; -} - -int mali_gralloc_reference_map(buffer_handle_t handle) { - private_handle_t *hnd = (private_handle_t *)handle; - - pthread_mutex_lock(&s_map_lock); - - if (hnd->bases[0]) { - MALI_GRALLOC_LOGV("Buffer is already mapped"); - pthread_mutex_unlock(&s_map_lock); - return 0; - } - - int retval = mali_gralloc_ion_map(hnd); - - pthread_mutex_unlock(&s_map_lock); - - return retval; -} - -int mali_gralloc_reference_release(buffer_handle_t handle, bool canFree) -{ - if (private_handle_t::validate(handle) < 0) - { - MALI_GRALLOC_LOGE("unregistering/releasing invalid buffer %p, returning error", handle); - return -EINVAL; - } - - private_handle_t *hnd = (private_handle_t *)handle; - pthread_mutex_lock(&s_map_lock); - - if (hnd->ref_count == 0) - { - MALI_GRALLOC_LOGE("Buffer %p should have already been released", handle); - pthread_mutex_unlock(&s_map_lock); - return -EINVAL; - } - - if (hnd->allocating_pid == getpid()) - { - hnd->ref_count--; - - if (hnd->ref_count == 0 && canFree) - { - mali_gralloc_dump_buffer_erase(hnd); - mali_gralloc_buffer_free(handle); - } - } - else if (hnd->remote_pid == getpid()) // never unmap buffers that were not imported into this process - { - hnd->ref_count--; - - if (hnd->ref_count == 0) - { - mali_gralloc_ion_unmap(hnd); - - /* TODO: Make this unmapping of shared meta fd into a function? */ - if (hnd->attr_base) - { - munmap(hnd->attr_base, hnd->attr_size); - hnd->attr_base = nullptr; - } - } - } - else - { - MALI_GRALLOC_LOGE("Trying to unregister buffer %p from process %d that was not imported into current process: %d", hnd, - hnd->remote_pid, getpid()); - } - - pthread_mutex_unlock(&s_map_lock); - return 0; -} - -int mali_gralloc_reference_validate(buffer_handle_t handle) -{ - if (private_handle_t::validate(handle) < 0) - { - MALI_GRALLOC_LOGE("Reference invalid buffer %p, returning error", handle); - return -EINVAL; - } - - const auto *hnd = (private_handle_t *)handle; - pthread_mutex_lock(&s_map_lock); - - if (hnd->allocating_pid == getpid() || hnd->remote_pid == getpid()) { - pthread_mutex_unlock(&s_map_lock); - return 0; - } else { - pthread_mutex_unlock(&s_map_lock); - MALI_GRALLOC_LOGE("Reference unimported buffer %p, returning error", handle); - return -EINVAL; - } -} - |