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hardware_samsung/exynos5/hal/libgralloc_ump/gralloc_module.cpp

289 lines
9.1 KiB

/*
* Copyright (C) 2010-2011 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 <errno.h>
#include <pthread.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
#include "ump.h"
#include "gralloc_priv.h"
#include "alloc_device.h"
#include "framebuffer_device.h"
#include "ion.h"
#include <sys/mman.h>
static pthread_mutex_t s_map_lock = PTHREAD_MUTEX_INITIALIZER;
static int s_ump_is_open = 0;
static int gralloc_map(gralloc_module_t const* module,
buffer_handle_t handle, void** vaddr)
{
private_handle_t* hnd = (private_handle_t*)handle;
private_module_t* m = (private_module_t*)module;
if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION) {
size_t size = hnd->size;
hnd->ion_client = ion_client_create();
void *mappedAddress = ion_map(hnd->fd, size, 0);
if (mappedAddress == MAP_FAILED) {
ALOGE("Could not ion_map %s fd(%d)", strerror(errno), hnd->fd);
return -errno;
}
hnd->base = intptr_t(mappedAddress) + hnd->offset;
ALOGD("gralloc_map() succeeded fd=%d, off=%d, size=%d, vaddr=%p",
hnd->fd, hnd->offset, hnd->size, mappedAddress);
} else {
ALOGE("In case of ION, It could not reach here!");
}
}
*vaddr = (void*)hnd->base;
return 0;
}
static int gralloc_unmap(gralloc_module_t const* module,
buffer_handle_t handle)
{
private_handle_t* hnd = (private_handle_t*)handle;
private_module_t* m = (private_module_t*)module;
if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION) {
void* base = (void*)hnd->base;
size_t size = hnd->size;
ALOGD("unmapping from %p, size=%d", base, size);
if (ion_unmap(base, size) < 0)
ALOGE("Could not ion_unmap %s", strerror(errno));
ion_client_destroy(hnd->ion_client);
}
}
hnd->base = 0;
return 0;
}
static int gralloc_device_open(const hw_module_t* module, const char* name, hw_device_t** device)
{
int status = -EINVAL;
ALOGI("Opening ARM Gralloc device");
if (!strcmp(name, GRALLOC_HARDWARE_GPU0))
status = alloc_device_open(module, name, device);
else if (!strcmp(name, GRALLOC_HARDWARE_FB0))
status = framebuffer_device_open(module, name, device);
return status;
}
static int gralloc_register_buffer(gralloc_module_t const* module, buffer_handle_t handle)
{
int retval = -EINVAL;
void *vaddr;
if (private_handle_t::validate(handle) < 0) {
ALOGE("Registering invalid buffer, returning error");
return -EINVAL;
}
// if this handle was created in this process, then we keep it as is.
private_handle_t* hnd = (private_handle_t*)handle;
if (hnd->pid == getpid()) {
ALOGE("Invalid Process ID from Private_Handle");
return 0;
}
pthread_mutex_lock(&s_map_lock);
if (!s_ump_is_open) {
ump_result res = ump_open();
if (res != UMP_OK) {
pthread_mutex_unlock(&s_map_lock);
ALOGE("Failed to open UMP library");
return retval;
}
s_ump_is_open = 1;
}
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_UMP) {
hnd->ump_mem_handle = ump_from_secure_id(hnd->ump_id);
if (UMP_INVALID_MEMORY_HANDLE != hnd->ump_mem_handle) {
hnd->base = (int)ump_map(hnd->ump_mem_handle, 0, hnd->size);
if (0 != hnd->base) {
hnd->lockState = private_handle_t::LOCK_STATE_MAPPED;
hnd->writeOwner = 0;
hnd->lockState = 0;
pthread_mutex_unlock(&s_map_lock);
return 0;
} else {
ALOGE("Failed to map UMP handle");
}
ump_release(hnd->ump_mem_handle);
} else {
ALOGE("Failed to create UMP handle");
}
} else if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION) {
hnd->ump_mem_handle = ump_handle_create_from_secure_id(hnd->ump_id);
retval = gralloc_map(module, handle, &vaddr);
} else {
ALOGE("registering non-UMP&ION buffer not supported");
}
pthread_mutex_unlock(&s_map_lock);
return retval;
}
static int gralloc_unregister_buffer(gralloc_module_t const* module, buffer_handle_t handle)
{
if (private_handle_t::validate(handle) < 0) {
ALOGE("unregistering invalid buffer, returning error");
return -EINVAL;
}
private_handle_t* hnd = (private_handle_t*)handle;
ALOGE_IF(hnd->lockState & private_handle_t::LOCK_STATE_READ_MASK,
"[unregister] handle %p still locked (state=%08x)", hnd, hnd->lockState);
/* never unmap buffers that were created in this process */
if (hnd->pid != getpid()) {
pthread_mutex_lock(&s_map_lock);
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_UMP) {
ump_unmap(hnd->ump_mem_handle, (void*)hnd->base, hnd->size);
hnd->base = 0;
ump_release(hnd->ump_mem_handle);
hnd->ump_mem_handle = UMP_INVALID_MEMORY_HANDLE;
} else if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION) {
ump_mapped_pointer_release((ump_handle)hnd->ump_mem_handle);
ump_reference_release((ump_handle)hnd->ump_mem_handle);
if (hnd->base)
gralloc_unmap(module, handle);
hnd->base = 0;
hnd->ump_mem_handle = (int)UMP_INVALID_MEMORY_HANDLE;
hnd->lockState = 0;
hnd->writeOwner = 0;
} else {
ALOGE("unregistering non-UMP buffer not supported");
}
hnd->base = 0;
hnd->lockState = 0;
hnd->writeOwner = 0;
pthread_mutex_unlock(&s_map_lock);
}
return 0;
}
static int gralloc_lock(gralloc_module_t const* module, buffer_handle_t handle,
int usage, int l, int t, int w, int h, void** vaddr)
{
if (private_handle_t::validate(handle) < 0) {
ALOGE("Locking invalid buffer, returning error");
return -EINVAL;
}
private_handle_t* hnd = (private_handle_t*)handle;
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_UMP) {
hnd->writeOwner = usage & GRALLOC_USAGE_SW_WRITE_MASK;
if (usage & GRALLOC_USAGE_SW_READ_MASK)
ump_cpu_msync_now(hnd->ump_mem_handle, UMP_MSYNC_CLEAN_AND_INVALIDATE,
(void*)hnd->base, hnd->size);
}
if (usage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK))
*vaddr = (void*)hnd->base;
if (usage & GRALLOC_USAGE_YUV_ADDR) {
vaddr[0] = (void*)hnd->base;
vaddr[1] = (void*)(hnd->base + hnd->uoffset);
vaddr[2] = (void*)(hnd->base + hnd->uoffset + hnd->voffset);
}
return 0;
}
static int gralloc_unlock(gralloc_module_t const* module, buffer_handle_t handle)
{
if (private_handle_t::validate(handle) < 0) {
ALOGE("Unlocking invalid buffer, returning error");
return -EINVAL;
}
private_handle_t* hnd = (private_handle_t*)handle;
private_module_t* m = (private_module_t*)module;
int32_t current_value;
int32_t new_value;
int retry;
if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_UMP && hnd->writeOwner)
ump_cpu_msync_now(hnd->ump_mem_handle, UMP_MSYNC_CLEAN_AND_INVALIDATE, (void*)hnd->base, hnd->size);
else if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION)
ion_msync(hnd->ion_client, hnd->fd, IMSYNC_DEV_TO_READ | IMSYNC_SYNC_FOR_DEV, hnd->size, hnd->offset);
return 0;
}
static struct hw_module_methods_t gralloc_module_methods =
{
open: gralloc_device_open
};
struct private_module_t HAL_MODULE_INFO_SYM =
{
base:
{
common:
{
tag: HARDWARE_MODULE_TAG,
version_major: 1,
version_minor: 0,
id: GRALLOC_HARDWARE_MODULE_ID,
name: "Graphics Memory Allocator Module",
author: "ARM Ltd.",
methods: &gralloc_module_methods,
dso: NULL,
reserved : {0,},
},
registerBuffer: gralloc_register_buffer,
unregisterBuffer: gralloc_unregister_buffer,
lock: gralloc_lock,
unlock: gralloc_unlock,
perform: NULL,
reserved_proc: {0,},
},
framebuffer: NULL,
flags: 0,
numBuffers: 0,
bufferMask: 0,
lock: PTHREAD_MUTEX_INITIALIZER,
currentBuffer: NULL,
ion_client: -1,
};