c2e6b1f62e
Since composition bypass uses MDP overlays, which need physically contiguous memory, we cannot use bypass in cases where the buffers are using ashmem or other virtual memory. Hence, avoid bypass in such cases. Change-Id: I5c6d20e68e15719295373a1b0f3b930536336c43
308 lines
9.2 KiB
C++
308 lines
9.2 KiB
C++
/*
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* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <cutils/log.h>
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#include <utils/RefBase.h>
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#include <fcntl.h>
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#include "gralloc_priv.h"
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#include "alloc_controller.h"
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#include "memalloc.h"
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#include "ionalloc.h"
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#include "pmemalloc.h"
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#include "ashmemalloc.h"
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using namespace gralloc;
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using android::sp;
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//Common functions
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static bool canFallback(int compositionType, int usage, bool triedSystem)
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{
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// Fallback to system heap when alloc fails unless
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// 1. Composition type is MDP
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// 2. Earlier alloc attempt was from system heap
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// 3. Contiguous heap requsted explicitly
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if(compositionType == MDP_COMPOSITION)
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return false;
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if(triedSystem)
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return false;
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if(usage &(GRALLOC_USAGE_PRIVATE_ADSP_HEAP|
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GRALLOC_USAGE_PRIVATE_EBI_HEAP |
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GRALLOC_USAGE_PRIVATE_SMI_HEAP))
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return false;
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//Return true by default
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return true;
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}
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sp<IAllocController> IAllocController::sController = NULL;
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sp<IAllocController> IAllocController::getInstance(bool useMasterHeap)
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{
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if(sController == NULL) {
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#ifdef USE_ION
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sController = new IonController();
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#else
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if(useMasterHeap)
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sController = new PmemAshmemController();
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else
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sController = new PmemKernelController();
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#endif
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}
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return sController;
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}
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//-------------- IonController-----------------------//
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IonController::IonController()
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{
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mIonAlloc = new IonAlloc();
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}
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int IonController::allocate(alloc_data& data, int usage,
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int compositionType)
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{
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int ionFlags = 0;
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int ret;
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bool noncontig = false;
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//System heap cannot be uncached
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if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED &&
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!(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP))
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data.uncached = true;
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else
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data.uncached = false;
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if(usage & GRALLOC_USAGE_PRIVATE_ADSP_HEAP)
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ionFlags |= 1 << ION_HEAP_ADSP_ID;
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if(usage & GRALLOC_USAGE_PRIVATE_SMI_HEAP)
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ionFlags |= 1 << ION_HEAP_SMI_ID;
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if(usage & GRALLOC_USAGE_PRIVATE_EBI_HEAP)
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ionFlags |= 1 << ION_HEAP_EBI_ID;
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if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) {
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ionFlags |= 1 << ION_HEAP_SYSTEM_ID;
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noncontig = true;
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}
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// if no flags are set, default to
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// EBI heap, so that bypass can work
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// we can fall back to system heap if
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// we run out.
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if(!ionFlags)
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ionFlags = 1 << ION_HEAP_EBI_ID;
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data.flags = ionFlags;
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ret = mIonAlloc->alloc_buffer(data);
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// Fallback
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if(ret < 0 && canFallback(compositionType,
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usage,
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(ionFlags & ION_HEAP_SYSTEM_ID)))
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{
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LOGW("Falling back to system heap");
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data.flags = 1 << ION_HEAP_SYSTEM_ID;
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noncontig = true;
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ret = mIonAlloc->alloc_buffer(data);
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}
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if(ret >= 0 ) {
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data.allocType = private_handle_t::PRIV_FLAGS_USES_ION;
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if(noncontig)
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data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM;
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}
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return ret;
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}
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sp<IMemAlloc> IonController::getAllocator(int flags)
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{
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sp<IMemAlloc> memalloc;
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if (flags & private_handle_t::PRIV_FLAGS_USES_ION) {
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memalloc = mIonAlloc;
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} else {
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LOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
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}
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return memalloc;
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}
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//-------------- PmemKernelController-----------------------//
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PmemKernelController::PmemKernelController()
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{
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mPmemAdspAlloc = new PmemKernelAlloc(DEVICE_PMEM_ADSP);
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// XXX: Right now, there is no need to maintain an instance
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// of the SMI allocator as we need it only in a few cases
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}
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PmemKernelController::~PmemKernelController()
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{
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}
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int PmemKernelController::allocate(alloc_data& data, int usage,
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int compositionType)
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{
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int ret = 0;
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bool adspFallback = false;
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if (!(usage & GRALLOC_USAGE_PRIVATE_SMI_HEAP))
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adspFallback = true;
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// Try SMI first
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if ((usage & GRALLOC_USAGE_PRIVATE_SMI_HEAP) ||
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(usage & GRALLOC_USAGE_EXTERNAL_DISP) ||
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(usage & GRALLOC_USAGE_PROTECTED))
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{
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int tempFd = open(DEVICE_PMEM_SMIPOOL, O_RDWR, 0);
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if(tempFd > 0) {
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close(tempFd);
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sp<IMemAlloc> memalloc;
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memalloc = new PmemKernelAlloc(DEVICE_PMEM_SMIPOOL);
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ret = memalloc->alloc_buffer(data);
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if(ret >= 0)
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return ret;
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else {
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if(adspFallback)
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LOGW("Allocation from SMI failed, trying ADSP");
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}
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}
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}
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if ((usage & GRALLOC_USAGE_PRIVATE_ADSP_HEAP) || adspFallback) {
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ret = mPmemAdspAlloc->alloc_buffer(data);
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}
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return ret;
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}
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sp<IMemAlloc> PmemKernelController::getAllocator(int flags)
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{
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sp<IMemAlloc> memalloc;
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if (flags & private_handle_t::PRIV_FLAGS_USES_PMEM_ADSP)
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memalloc = mPmemAdspAlloc;
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else {
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LOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
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memalloc = NULL;
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}
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return memalloc;
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}
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//-------------- PmemAshmmemController-----------------------//
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PmemAshmemController::PmemAshmemController()
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{
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mPmemUserspaceAlloc = new PmemUserspaceAlloc();
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mAshmemAlloc = new AshmemAlloc();
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mPmemKernelCtrl = new PmemKernelController();
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}
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PmemAshmemController::~PmemAshmemController()
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{
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}
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int PmemAshmemController::allocate(alloc_data& data, int usage,
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int compositionType)
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{
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int ret = 0;
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// Decide caching
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// Decide based on usage
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uint32_t uread = usage & GRALLOC_USAGE_SW_READ_MASK;
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uint32_t uwrite = usage & GRALLOC_USAGE_SW_WRITE_MASK;
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if (uread == GRALLOC_USAGE_SW_READ_OFTEN ||
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uwrite == GRALLOC_USAGE_SW_WRITE_OFTEN) {
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data.uncached = false;
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} else {
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data.uncached = true;
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}
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// Override if we explicitly need uncached buffers
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if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED)
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data.uncached = true;
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// If ADSP or SMI is requested use the kernel controller
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if(usage & (GRALLOC_USAGE_PRIVATE_ADSP_HEAP|
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GRALLOC_USAGE_PRIVATE_SMI_HEAP)) {
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ret = mPmemKernelCtrl->allocate(data, usage, compositionType);
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if(ret < 0)
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LOGE("%s: Failed to allocate ADSP/SMI memory", __func__);
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else
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data.allocType = private_handle_t::PRIV_FLAGS_USES_PMEM_ADSP;
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return ret;
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}
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if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) {
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ret = mAshmemAlloc->alloc_buffer(data);
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if(ret >= 0) {
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data.allocType = private_handle_t::PRIV_FLAGS_USES_ASHMEM;
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data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM;
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}
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return ret;
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}
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// if no memory specific flags are set,
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// default to EBI heap, so that bypass
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// can work. We can fall back to system
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// heap if we run out.
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ret = mPmemUserspaceAlloc->alloc_buffer(data);
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// Fallback
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if(ret >= 0 ) {
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data.allocType = private_handle_t::PRIV_FLAGS_USES_PMEM;
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} else if(ret < 0 && canFallback(compositionType, usage, false)) {
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LOGW("Falling back to ashmem");
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ret = mAshmemAlloc->alloc_buffer(data);
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if(ret >= 0) {
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data.allocType = private_handle_t::PRIV_FLAGS_USES_ASHMEM;
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data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM;
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}
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}
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return ret;
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}
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sp<IMemAlloc> PmemAshmemController::getAllocator(int flags)
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{
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sp<IMemAlloc> memalloc;
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if (flags & private_handle_t::PRIV_FLAGS_USES_PMEM)
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memalloc = mPmemUserspaceAlloc;
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else if (flags & private_handle_t::PRIV_FLAGS_USES_PMEM_ADSP)
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memalloc = mPmemKernelCtrl->getAllocator(flags);
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else if (flags & private_handle_t::PRIV_FLAGS_USES_ASHMEM)
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memalloc = mAshmemAlloc;
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else {
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LOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags);
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memalloc = NULL;
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}
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return memalloc;
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}
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