Files
android_vendor_qcom_opensou…/libgralloc/gpu.cpp
Sushil Chauhan 65e26307e6 display: Add support for UBWC in display hal
1. Add support for UBWC allocation in the Gralloc APIs for aligned
width, aligned height and buffer size. A client can request for UBWC
allocation by sending UBWC specific HAL pixel format or by setting
GRALLOC_USAGE_PRIVATE_ALLOC_UBWC flag in the usage flags.

2. Gralloc allocates UBWC aligned buffer, only if format is supported
by GPU and MDP and no CPU usage flags are set. Otherwise it allocates
linear buffer.

3. If UBWC conditions are met, gralloc sets PRIV_FLAGS_UBWC_ALIGNED
in private handle flags to tell client that allocated buffer has UBWC
alignment. This flag remains unset by default.

4. Add helper functions in gralloc to calculate UBWC meta buffer size
for RGB* formats.

5. Add UBWC HAL pixel format HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC
which has been defined by Video module.

6. Add AdrenoMemInfo api to query, if GPU supports UBWC for a format.

7.MDP driver expects UBWC specific pixel format defined by MDP header.

Change-Id: I5b4344bc90aa498dbdb7bb8100e70ed7728e6ea5
2015-01-16 11:00:01 -08:00

413 lines
14 KiB
C++

/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (c) 2011-2014 The Linux Foundation. All rights reserved.
*
* 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 <limits.h>
#include <unistd.h>
#include <fcntl.h>
#include <cutils/properties.h>
#include <sys/mman.h>
#include "gr.h"
#include "gpu.h"
#include "memalloc.h"
#include "alloc_controller.h"
#include <qdMetaData.h>
using namespace gralloc;
#define SZ_1M 0x100000
gpu_context_t::gpu_context_t(const private_module_t* module,
IAllocController* alloc_ctrl ) :
mAllocCtrl(alloc_ctrl)
{
// Zero out the alloc_device_t
memset(static_cast<alloc_device_t*>(this), 0, sizeof(alloc_device_t));
// Initialize the procs
common.tag = HARDWARE_DEVICE_TAG;
common.version = 0;
common.module = const_cast<hw_module_t*>(&module->base.common);
common.close = gralloc_close;
alloc = gralloc_alloc;
free = gralloc_free;
}
int gpu_context_t::gralloc_alloc_buffer(unsigned int size, int usage,
buffer_handle_t* pHandle, int bufferType,
int format, int width, int height)
{
int err = 0;
int flags = 0;
size = roundUpToPageSize(size);
alloc_data data;
data.offset = 0;
data.fd = -1;
data.base = 0;
if(format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED)
data.align = 8192;
else
data.align = getpagesize();
/* force 1MB alignment selectively for secure buffers, MDP5 onwards */
#ifdef MDSS_TARGET
if ((usage & GRALLOC_USAGE_PROTECTED) &&
(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP)) {
data.align = ALIGN((int) data.align, SZ_1M);
size = ALIGN(size, data.align);
}
#endif
data.size = size;
data.pHandle = (uintptr_t) pHandle;
err = mAllocCtrl->allocate(data, usage);
if (!err) {
/* allocate memory for enhancement data */
alloc_data eData;
eData.fd = -1;
eData.base = 0;
eData.offset = 0;
eData.size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
eData.pHandle = data.pHandle;
eData.align = getpagesize();
int eDataUsage = GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP;
int eDataErr = mAllocCtrl->allocate(eData, eDataUsage);
ALOGE_IF(eDataErr, "gralloc failed for eDataErr=%s",
strerror(-eDataErr));
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
}
ColorSpace_t colorSpace = ITU_R_601;
flags |= private_handle_t::PRIV_FLAGS_ITU_R_601;
if (bufferType == BUFFER_TYPE_VIDEO) {
if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
#ifndef MDSS_TARGET
colorSpace = ITU_R_601_FR;
flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
#else
// Per the camera spec ITU 709 format should be set only for
// video encoding.
// It should be set to ITU 601 full range format for any other
// camera buffer
//
if (usage & GRALLOC_USAGE_HW_CAMERA_MASK) {
if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER) {
flags |= private_handle_t::PRIV_FLAGS_ITU_R_709;
colorSpace = ITU_R_709;
} else {
flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
colorSpace = ITU_R_601_FR;
}
}
#endif
}
}
if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER ) {
flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
}
if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
}
if (usage & GRALLOC_USAGE_HW_CAMERA_READ) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
}
if (usage & GRALLOC_USAGE_HW_COMPOSER) {
flags |= private_handle_t::PRIV_FLAGS_HW_COMPOSER;
}
if (usage & GRALLOC_USAGE_HW_TEXTURE) {
flags |= private_handle_t::PRIV_FLAGS_HW_TEXTURE;
}
if(usage & GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY) {
flags |= private_handle_t::PRIV_FLAGS_SECURE_DISPLAY;
}
if(isMacroTileEnabled(format, usage)) {
flags |= private_handle_t::PRIV_FLAGS_TILE_RENDERED;
}
if (isUBwcEnabled(format, usage)) {
flags |= private_handle_t::PRIV_FLAGS_UBWC_ALIGNED;
}
if(usage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) {
flags |= private_handle_t::PRIV_FLAGS_CPU_RENDERED;
}
if (usage & (GRALLOC_USAGE_HW_VIDEO_ENCODER |
GRALLOC_USAGE_HW_CAMERA_WRITE |
GRALLOC_USAGE_HW_RENDER |
GRALLOC_USAGE_HW_FB)) {
flags |= private_handle_t::PRIV_FLAGS_NON_CPU_WRITER;
}
if(false == data.uncached) {
flags |= private_handle_t::PRIV_FLAGS_CACHED;
}
flags |= data.allocType;
uint64_t eBaseAddr = (uint64_t)(eData.base) + eData.offset;
private_handle_t *hnd = new private_handle_t(data.fd, size, flags,
bufferType, format, width, height, eData.fd, eData.offset,
eBaseAddr);
hnd->offset = data.offset;
hnd->base = (uint64_t)(data.base) + data.offset;
hnd->gpuaddr = 0;
setMetaData(hnd, UPDATE_COLOR_SPACE, (void*) &colorSpace);
*pHandle = hnd;
}
ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
return err;
}
void gpu_context_t::getGrallocInformationFromFormat(int inputFormat,
int *bufferType)
{
*bufferType = BUFFER_TYPE_VIDEO;
if (inputFormat <= HAL_PIXEL_FORMAT_sRGB_X_8888) {
// RGB formats
*bufferType = BUFFER_TYPE_UI;
} else if ((inputFormat == HAL_PIXEL_FORMAT_R_8) ||
(inputFormat == HAL_PIXEL_FORMAT_RG_88)) {
*bufferType = BUFFER_TYPE_UI;
}
}
int gpu_context_t::gralloc_alloc_framebuffer_locked(int usage,
buffer_handle_t* pHandle)
{
private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
// we don't support framebuffer allocations with graphics heap flags
if (usage & GRALLOC_HEAP_MASK) {
return -EINVAL;
}
if (m->framebuffer == NULL) {
ALOGE("%s: Invalid framebuffer", __FUNCTION__);
return -EINVAL;
}
const unsigned int bufferMask = m->bufferMask;
const uint32_t numBuffers = m->numBuffers;
unsigned int bufferSize = m->finfo.line_length * m->info.yres;
//adreno needs FB size to be page aligned
bufferSize = roundUpToPageSize(bufferSize);
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;
return gralloc_alloc_buffer(bufferSize, newUsage, pHandle, BUFFER_TYPE_UI,
m->fbFormat, m->info.xres, m->info.yres);
}
if (bufferMask >= ((1LU<<numBuffers)-1)) {
// We ran out of buffers.
return -ENOMEM;
}
// create a "fake" handle for it
uint64_t vaddr = uint64_t(m->framebuffer->base);
// As GPU needs ION FD, the private handle is created
// using ION fd and ION flags are set
private_handle_t* hnd = new private_handle_t(
dup(m->framebuffer->fd), bufferSize,
private_handle_t::PRIV_FLAGS_USES_ION |
private_handle_t::PRIV_FLAGS_FRAMEBUFFER,
BUFFER_TYPE_UI, m->fbFormat, m->info.xres,
m->info.yres);
// find a free slot
for (uint32_t i=0 ; i<numBuffers ; i++) {
if ((bufferMask & (1LU<<i)) == 0) {
m->bufferMask |= (uint32_t)(1LU<<i);
break;
}
vaddr += bufferSize;
}
hnd->base = vaddr;
hnd->offset = (unsigned int)(vaddr - m->framebuffer->base);
*pHandle = hnd;
return 0;
}
int gpu_context_t::gralloc_alloc_framebuffer(int usage,
buffer_handle_t* pHandle)
{
private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
pthread_mutex_lock(&m->lock);
int err = gralloc_alloc_framebuffer_locked(usage, pHandle);
pthread_mutex_unlock(&m->lock);
return err;
}
int gpu_context_t::alloc_impl(int w, int h, int format, int usage,
buffer_handle_t* pHandle, int* pStride,
unsigned int bufferSize) {
if (!pHandle || !pStride)
return -EINVAL;
unsigned int size;
int alignedw, alignedh;
int grallocFormat = format;
int bufferType;
//If input format is HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED then based on
//the usage bits, gralloc assigns a format.
if(format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED ||
format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
if(usage & GRALLOC_USAGE_HW_VIDEO_ENCODER)
grallocFormat = HAL_PIXEL_FORMAT_NV12_ENCODEABLE; //NV12
else if((usage & GRALLOC_USAGE_HW_CAMERA_MASK)
== GRALLOC_USAGE_HW_CAMERA_ZSL)
grallocFormat = HAL_PIXEL_FORMAT_NV21_ZSL; //NV21 ZSL
else if(usage & GRALLOC_USAGE_HW_CAMERA_READ)
grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
else if(usage & GRALLOC_USAGE_HW_CAMERA_WRITE)
grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
else if(usage & GRALLOC_USAGE_HW_COMPOSER)
//XXX: If we still haven't set a format, default to RGBA8888
grallocFormat = HAL_PIXEL_FORMAT_RGBA_8888;
}
getGrallocInformationFromFormat(grallocFormat, &bufferType);
size = getBufferSizeAndDimensions(w, h, grallocFormat, usage, alignedw,
alignedh);
if ((unsigned int)size <= 0)
return -EINVAL;
size = (bufferSize >= size)? bufferSize : size;
bool useFbMem = false;
char property[PROPERTY_VALUE_MAX];
if((usage & GRALLOC_USAGE_HW_FB) &&
(property_get("debug.gralloc.map_fb_memory", property, NULL) > 0) &&
(!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
(!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
useFbMem = true;
}
int err = 0;
if(useFbMem) {
err = gralloc_alloc_framebuffer(usage, pHandle);
} else {
err = gralloc_alloc_buffer(size, usage, pHandle, bufferType,
grallocFormat, alignedw, alignedh);
}
if (err < 0) {
return err;
}
*pStride = alignedw;
return 0;
}
int gpu_context_t::free_impl(private_handle_t const* hnd) {
private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
const unsigned int bufferSize = m->finfo.line_length * m->info.yres;
unsigned int index = (unsigned int) ((hnd->base - m->framebuffer->base)
/ bufferSize);
m->bufferMask &= (uint32_t)~(1LU<<index);
} else {
terminateBuffer(&m->base, const_cast<private_handle_t*>(hnd));
IMemAlloc* memalloc = mAllocCtrl->getAllocator(hnd->flags);
int err = memalloc->free_buffer((void*)hnd->base, hnd->size,
hnd->offset, hnd->fd);
if(err)
return err;
// free the metadata space
unsigned int size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
err = memalloc->free_buffer((void*)hnd->base_metadata,
size, hnd->offset_metadata,
hnd->fd_metadata);
if (err)
return err;
}
delete hnd;
return 0;
}
int gpu_context_t::gralloc_alloc(alloc_device_t* dev, int w, int h, int format,
int usage, buffer_handle_t* pHandle,
int* pStride)
{
if (!dev) {
return -EINVAL;
}
gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, 0);
}
int gpu_context_t::gralloc_alloc_size(alloc_device_t* dev, int w, int h,
int format, int usage,
buffer_handle_t* pHandle, int* pStride,
int bufferSize)
{
if (!dev) {
return -EINVAL;
}
gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, bufferSize);
}
int gpu_context_t::gralloc_free(alloc_device_t* dev,
buffer_handle_t handle)
{
if (private_handle_t::validate(handle) < 0)
return -EINVAL;
private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
return gpu->free_impl(hnd);
}
/*****************************************************************************/
int gpu_context_t::gralloc_close(struct hw_device_t *dev)
{
gpu_context_t* ctx = reinterpret_cast<gpu_context_t*>(dev);
if (ctx) {
/* TODO: keep a list of all buffer_handle_t created, and free them
* all here.
*/
delete ctx;
}
return 0;
}