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hardware_samsung/exynos5/hal/libgralloc_ump/alloc_device.cpp

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/*
* 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 <string.h>
#include <errno.h>
#include <pthread.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
#include "alloc_device.h"
#include "gralloc_priv.h"
#include "gralloc_helper.h"
#include "framebuffer_device.h"
#include "ump.h"
#include "sec_format.h"
#include <fcntl.h>
#ifdef ION_ALLOC
#include "ion.h"
#endif
#include <linux/ashmem.h>
#include <cutils/ashmem.h>
/* Treat GPU as UMP Device Z */
#define GRALLOC_DEVICE_SHIFT UMP_DEVICE_Z_SHIFT
#define EXYNOS_ALIGN( value, base ) (((value) + ((base) - 1)) & ~((base) - 1))
static int gralloc_alloc_buffer(alloc_device_t* dev, size_t size, int usage,
buffer_handle_t* pHandle, int w, int h,
int format, int bpp, int stride_raw, int stride)
{
ion_buffer ion_fd = 0;
ump_handle ump_mem_handle;
void *cpu_ptr = NULL;
ump_secure_id ump_id=UMP_INVALID_SECURE_ID;
ump_alloc_flags ump_flags = UMP_PROT_SHAREABLE | UMP_HINT_CPU_RD | UMP_HINT_CPU_WR;
int sw_read_usage;
int sw_write_usage;
int hw_usage;
size = round_up_to_page_size(size);
unsigned int ion_flags = 0;
int priv_alloc_flag = private_handle_t::PRIV_FLAGS_USES_UMP;
if (usage & GRALLOC_USAGE_HW_ION) {
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
ion_fd = ion_alloc(m->ion_client, size, 0, ION_HEAP_EXYNOS_MASK);
if (ion_fd < 0) {
ALOGE("Failed to ion_alloc");
return -1;
}
cpu_ptr = ion_map(ion_fd, size, 0);
if (NULL == cpu_ptr) {
ALOGE("Failed to ion_map");
ion_free(ion_fd);
return -1;
}
/* TODO: GPU does not use ION. */
ump_mem_handle = ump_import(UMP_EXTERNAL_MEM_TYPE_ION, &ion_fd, ump_flags);
if (UMP_INVALID_MEMORY_HANDLE != ump_mem_handle) {
priv_alloc_flag = private_handle_t::PRIV_FLAGS_USES_ION;
} else {
ALOGE("gralloc_alloc_buffer() failed to import ION memory");
ion_unmap(cpu_ptr, size);
ion_free(ion_fd);
return -1;
}
} else {
usage |= GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER;
sw_read_usage = usage & GRALLOC_USAGE_SW_READ_MASK;
sw_write_usage = usage & GRALLOC_USAGE_SW_WRITE_MASK;
hw_usage = usage & GRALLOC_USAGE_HW_MASK;
if (sw_read_usage) {
ump_flags |= UMP_PROT_CPU_RD;
if (sw_read_usage == GRALLOC_USAGE_SW_READ_OFTEN)
ump_flags |= UMP_HINT_CPU_RD;
}
if (sw_write_usage) {
ump_flags |= UMP_PROT_CPU_WR;
if (sw_write_usage == GRALLOC_USAGE_SW_WRITE_OFTEN)
ump_flags |= UMP_HINT_CPU_WR;
}
if (hw_usage) {
int hw_flags = 0;
if (hw_usage & (GRALLOC_USAGE_HW_TEXTURE))
hw_flags |= (UMP_PROT_DEVICE_RD | UMP_HINT_DEVICE_RD);
if (hw_usage & (GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_FB))
hw_flags |= (UMP_PROT_DEVICE_RD | UMP_HINT_DEVICE_RD | UMP_PROT_DEVICE_WR | UMP_HINT_DEVICE_WR);
ump_flags |= (hw_flags << GRALLOC_DEVICE_SHIFT);
}
ump_mem_handle = ump_allocate_64(size, ump_flags);
if (UMP_INVALID_MEMORY_HANDLE != ump_mem_handle)
cpu_ptr = ump_map(ump_mem_handle, 0, size);
else
ALOGE("gralloc_alloc_buffer() failed to allcoate UMP memory");
}
if (NULL != cpu_ptr) {
ump_id = ump_secure_id_get(ump_mem_handle);
if (UMP_INVALID_SECURE_ID != ump_id || usage & GRALLOC_USAGE_HW_ION) {
private_handle_t* hnd = new private_handle_t(priv_alloc_flag, size, (int)cpu_ptr,
private_handle_t::LOCK_STATE_MAPPED,
ump_id,
ump_mem_handle);
if (NULL != hnd) {
*pHandle = hnd;
hnd->fd = ion_fd;
hnd->format = format;
hnd->usage = usage;
hnd->width = w;
hnd->height = h;
hnd->bpp = bpp;
hnd->stride = stride;
hnd->uoffset = ((EXYNOS_ALIGN(hnd->width, 16) * EXYNOS_ALIGN(hnd->height, 16)));
hnd->voffset = ((EXYNOS_ALIGN((hnd->width >> 1), 8) * EXYNOS_ALIGN((hnd->height >> 1), 8)));
return 0;
} else {
ALOGE("gralloc_alloc_buffer() failed to allocate handle");
}
} else {
ALOGE("gralloc_alloc_buffer() failed to retrieve valid secure id");
}
ump_unmap(ump_mem_handle, cpu_ptr, size);
} else {
ALOGE("gralloc_alloc_buffer() failed to map UMP memory");
}
ump_release(ump_mem_handle);
return -1;
}
static int gralloc_alloc_framebuffer_locked(alloc_device_t* dev, size_t size, int usage,
buffer_handle_t* pHandle, int w, int h,
int format, int bpp)
{
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
/* allocate the framebuffer */
if (m->framebuffer == NULL) {
/* initialize the framebuffer, the framebuffer is mapped once and forever. */
int err = init_frame_buffer_locked(m);
if (err < 0)
return err;
}
const uint32_t bufferMask = m->bufferMask;
const uint32_t numBuffers = m->numBuffers;
const size_t bufferSize = m->finfo.line_length * m->info.yres;
if (numBuffers == 1) {
/*
* If we have only one buffer, we never use page-flipping. Instead,
* we return a regular buffer which will be memcpy'ed to the main
* screen when post is called.
*/
int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D;
ALOGD("fallback to single buffering");
return gralloc_alloc_buffer(dev, bufferSize, newUsage, pHandle, w, h, format, bpp, 0, 0);
}
if (bufferMask >= ((1LU<<numBuffers)-1)) {
ALOGE("Ran out of buffers");
return -ENOMEM;
}
int vaddr = m->framebuffer->base;
/* find a free slot */
for (uint32_t i = 0; i < numBuffers; i++) {
if ((bufferMask & (1LU<<i)) == 0) {
m->bufferMask |= (1LU<<i);
break;
}
vaddr += bufferSize;
}
/* The entire framebuffer memory is already mapped, now create a buffer object for parts of this memory */
private_handle_t* hnd = new private_handle_t(private_handle_t::PRIV_FLAGS_FRAMEBUFFER, size, vaddr,
0, dup(m->framebuffer->fd), vaddr - m->framebuffer->base);
hnd->format = format;
hnd->usage = usage;
hnd->width = w;
hnd->height = h;
hnd->bpp = bpp;
*pHandle = hnd;
return 0;
}
static int gralloc_alloc_framebuffer(alloc_device_t* dev, size_t size, int usage,
buffer_handle_t* pHandle, int w, int h,
int format, int bpp)
{
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
pthread_mutex_lock(&m->lock);
int err = gralloc_alloc_framebuffer_locked(dev, size, usage, pHandle, w, h, format, bpp);
pthread_mutex_unlock(&m->lock);
return err;
}
static int alloc_device_alloc(alloc_device_t* dev, int w, int h, int format,
int usage, buffer_handle_t* pHandle, int* pStride)
{
if (!pHandle || !pStride) {
ALOGE("Invalid Handle, Stride value");
return -EINVAL;
}
int err;
int align = 16;
int bpp = 0;
size_t stride_raw = 0;
size_t size = 0;
size_t stride = (w + 15) & ~15;
size_t vstride = (h + 15) & ~15;
switch (format) {
case HAL_PIXEL_FORMAT_RGBA_8888:
case HAL_PIXEL_FORMAT_RGBX_8888:
case HAL_PIXEL_FORMAT_BGRA_8888:
bpp = 4;
break;
case HAL_PIXEL_FORMAT_RGB_888:
bpp = 3;
break;
case HAL_PIXEL_FORMAT_RGB_565:
case HAL_PIXEL_FORMAT_RGBA_5551:
case HAL_PIXEL_FORMAT_RGBA_4444:
bpp = 2;
break;
case HAL_PIXEL_FORMAT_YCbCr_420_P:
case HAL_PIXEL_FORMAT_YCbCr_420_SP:
case HAL_PIXEL_FORMAT_YV12:
size = stride * vstride * 2;
bpp = 4;
break;
default:
ALOGE("Not Support Pixel Format");
return -EINVAL;
}
if (format != HAL_PIXEL_FORMAT_YCbCr_420_P &&
format != HAL_PIXEL_FORMAT_YCbCr_420_SP &&
format != HAL_PIXEL_FORMAT_YV12) {
size_t bpr = (w * bpp + (align-1)) & ~(align-1);
size = bpr * h;
stride = bpr / bpp;
stride_raw = bpr;
}
if (usage & GRALLOC_USAGE_HW_FB)
err = gralloc_alloc_framebuffer(dev, size, usage, pHandle, w, h, format, 32);
else
err = gralloc_alloc_buffer(dev, size, usage, pHandle, w, h,
format, 0, (int)stride_raw, (int)stride);
if (err < 0) {
ALOGE("Fail to alloc Gralloc memory");
return err;
}
*pStride = stride;
return 0;
}
static int alloc_device_free(alloc_device_t* dev, buffer_handle_t handle)
{
if (private_handle_t::validate(handle) < 0) {
ALOGE("Invalid Value : private_handle");
return -EINVAL;
}
private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
/* free this buffer */
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
const size_t bufferSize = m->finfo.line_length * m->info.yres;
int index = (hnd->base - m->framebuffer->base) / bufferSize;
m->bufferMask &= ~(1<<index);
close(hnd->fd);
} else if (hnd->flags & private_handle_t::PRIV_FLAGS_USES_UMP) {
ump_unmap(hnd->ump_mem_handle, (void*)hnd->base, hnd->size);
ump_release(hnd->ump_mem_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);
ion_unmap((void*)hnd->base, hnd->size);
ion_free(hnd->fd);
}
delete hnd;
return 0;
}
static int alloc_device_close(struct hw_device_t *device)
{
alloc_device_t* dev = reinterpret_cast<alloc_device_t*>(device);
if (dev) {
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
ion_client_destroy(m->ion_client);
delete dev;
ump_close(); /* Our UMP memory refs will be released automatically here... */
}
return 0;
}
int alloc_device_open(hw_module_t const* module, const char* name, hw_device_t** device)
{
alloc_device_t *dev;
dev = new alloc_device_t;
if (NULL == dev) {
ALOGE("Fail to create alloc_device");
return -1;
}
dev->common.module = const_cast<hw_module_t*>(module);
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
m->ion_client=ion_client_create();
ALOGI("gralloc create ion_client %d", m->ion_client);
ump_result ump_res = ump_open();
if ((UMP_OK != ump_res) || (0 > m->ion_client)) {
ALOGE("UMP open failed, ump_res %d, ion_client %d", ump_res, m->ion_client);
delete dev;
return -1;
}
/* initialize our state here */
memset(dev, 0, sizeof(*dev));
/* initialize the procs */
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = 0;
dev->common.module = const_cast<hw_module_t*>(module);
dev->common.close = alloc_device_close;
dev->alloc = alloc_device_alloc;
dev->free = alloc_device_free;
*device = &dev->common;
return 0;
}