447 lines
14 KiB
C++
447 lines
14 KiB
C++
/*
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* Copyright (c) 2011-2012, 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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#ifdef USE_ION
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#include "ionalloc.h"
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#endif
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#include "pmemalloc.h"
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#include "ashmemalloc.h"
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#include "gr.h"
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using namespace gralloc;
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using android::sp;
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const int GRALLOC_HEAP_MASK = GRALLOC_USAGE_PRIVATE_ADSP_HEAP |
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GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP |
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GRALLOC_USAGE_PRIVATE_SMI_HEAP |
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GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |
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GRALLOC_USAGE_PRIVATE_IOMMU_HEAP |
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GRALLOC_USAGE_PRIVATE_MM_HEAP |
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GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP |
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GRALLOC_USAGE_PRIVATE_CAMERA_HEAP;
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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. Alloc from system heap was already tried
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// 3. The heap type is requsted explicitly
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// 4. The heap type is protected
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// 5. The buffer is meant for external display only
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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_HEAP_MASK | GRALLOC_USAGE_PROTECTED))
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return false;
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if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_EXTERNAL_ONLY))
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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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static bool useUncached(int usage)
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{
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// System heaps cannot be uncached
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if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP)
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return false;
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if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED)
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return true;
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return false;
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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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#ifdef USE_ION
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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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data.uncached = useUncached(usage);
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data.allocType = 0;
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if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP)
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ionFlags |= ION_HEAP(ION_SF_HEAP_ID);
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if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) {
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ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID);
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noncontig = true;
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}
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if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)
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ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
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if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP)
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ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
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if(usage & GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP)
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ionFlags |= ION_HEAP(ION_CP_WB_HEAP_ID);
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if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP)
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ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID);
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if(usage & GRALLOC_USAGE_PROTECTED)
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ionFlags |= ION_SECURE;
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if(usage & GRALLOC_USAGE_PRIVATE_DO_NOT_MAP)
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data.allocType |= private_handle_t::PRIV_FLAGS_NOT_MAPPED;
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else
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data.allocType &= ~(private_handle_t::PRIV_FLAGS_NOT_MAPPED);
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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 = ION_HEAP(ION_SF_HEAP_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_SYSTEM_HEAP_ID)))
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{
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LOGW("Falling back to system heap");
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data.flags = ION_HEAP(ION_SYSTEM_HEAP_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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if(ionFlags & ION_SECURE)
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data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
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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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#endif
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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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data.allocType = 0;
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// Make buffers cacheable by default
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data.uncached = false;
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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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size_t getBufferSizeAndDimensions(int width, int height, int format,
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int& alignedw, int &alignedh)
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{
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size_t size;
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alignedw = ALIGN(width, 32);
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alignedh = ALIGN(height, 32);
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switch (format) {
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case HAL_PIXEL_FORMAT_RGBA_8888:
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case HAL_PIXEL_FORMAT_RGBX_8888:
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case HAL_PIXEL_FORMAT_BGRA_8888:
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size = alignedw * alignedh * 4;
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break;
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case HAL_PIXEL_FORMAT_RGB_888:
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size = alignedw * alignedh * 3;
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break;
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case HAL_PIXEL_FORMAT_RGB_565:
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case HAL_PIXEL_FORMAT_RGBA_5551:
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case HAL_PIXEL_FORMAT_RGBA_4444:
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size = alignedw * alignedh * 2;
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break;
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// adreno formats
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case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO: // NV21
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size = ALIGN(alignedw*alignedh, 4096);
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size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096);
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break;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED: // NV12
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// The chroma plane is subsampled,
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// but the pitch in bytes is unchanged
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// The GPU needs 4K alignment, but the video decoder needs 8K
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alignedw = ALIGN(width, 128);
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size = ALIGN( alignedw * alignedh, 8192);
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size += ALIGN( alignedw * ALIGN(height/2, 32), 8192);
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break;
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case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
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case HAL_PIXEL_FORMAT_YCbCr_420_SP:
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case HAL_PIXEL_FORMAT_YCrCb_420_SP:
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case HAL_PIXEL_FORMAT_YV12:
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if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) {
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LOGE("w or h is odd for the YV12 format");
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return -EINVAL;
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}
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alignedw = ALIGN(width, 16);
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alignedh = height;
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if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) {
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// The encoder requires a 2K aligned chroma offset.
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size = ALIGN(alignedw*alignedh, 2048) +
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(ALIGN(alignedw/2, 16) * (alignedh/2))*2;
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} else {
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size = alignedw*alignedh +
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(ALIGN(alignedw/2, 16) * (alignedh/2))*2;
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}
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size = ALIGN(size, 4096);
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break;
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default:
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LOGE("unrecognized pixel format: %d", format);
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return -EINVAL;
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}
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return size;
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}
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// Allocate buffer from width, height and format into a
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// private_handle_t. It is the responsibility of the caller
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// to free the buffer using the free_buffer function
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int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage)
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{
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alloc_data data;
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int alignedw, alignedh;
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android::sp<gralloc::IAllocController> sAlloc =
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gralloc::IAllocController::getInstance(false);
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data.base = 0;
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data.fd = -1;
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data.offset = 0;
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data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh);
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data.align = getpagesize();
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data.uncached = useUncached(usage);
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int allocFlags = usage;
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int err = sAlloc->allocate(data, allocFlags, 0);
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if (0 != err) {
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LOGE("%s: allocate failed", __FUNCTION__);
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return -ENOMEM;
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}
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private_handle_t* hnd = new private_handle_t(data.fd, data.size,
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data.allocType, 0, format, alignedw, alignedh);
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hnd->base = (int) data.base;
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hnd->offset = data.offset;
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hnd->gpuaddr = 0;
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*pHnd = hnd;
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return 0;
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}
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void free_buffer(private_handle_t *hnd)
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{
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android::sp<gralloc::IAllocController> sAlloc =
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gralloc::IAllocController::getInstance(false);
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if (hnd && hnd->fd > 0) {
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sp<IMemAlloc> memalloc = sAlloc->getAllocator(hnd->flags);
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memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd);
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}
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if(hnd)
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delete hnd;
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}
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