c5e6fb0fd3
The specification for GRALLOC_USAGE_PROTECTED indicates that allocations with that flag must be protected by securing with hardware. If such protection is not possible, the buffer must not be composited. In our current software only the MM_HEAP is secured. If we allocate protected buffers from any other heap we block those from being displayed. CRs-fixed: 465012 Change-Id: I9d47aba3d28192db3fcc394fd6b38efe42ae118b
370 lines
12 KiB
C++
370 lines
12 KiB
C++
/*
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* Copyright (c) 2011-2012, The Linux Foundation. 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 The Linux Foundation 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 <fcntl.h>
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#include <dlfcn.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 "gr.h"
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#include "comptype.h"
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#ifdef VENUS_COLOR_FORMAT
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#include <media/msm_media_info.h>
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#else
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#define VENUS_Y_STRIDE(args...) 0
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#define VENUS_Y_SCANLINES(args...) 0
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#define VENUS_BUFFER_SIZE(args...) 0
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#endif
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using namespace gralloc;
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using namespace qdutils;
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ANDROID_SINGLETON_STATIC_INSTANCE(AdrenoMemInfo);
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//Common functions
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static bool canFallback(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(QCCompositionType::getInstance().getCompositionType() &
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COMPOSITION_TYPE_MDP)
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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_PRIVATE_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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//-------------- AdrenoMemInfo-----------------------//
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AdrenoMemInfo::AdrenoMemInfo()
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{
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libadreno_utils = ::dlopen("libadreno_utils.so", RTLD_NOW);
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if (libadreno_utils) {
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*(void **)&LINK_adreno_compute_padding = ::dlsym(libadreno_utils,
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"compute_surface_padding");
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}
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}
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AdrenoMemInfo::~AdrenoMemInfo()
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{
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if (libadreno_utils) {
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::dlclose(libadreno_utils);
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}
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}
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int AdrenoMemInfo::getStride(int width, int format)
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{
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int stride = ALIGN(width, 32);
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// Currently surface padding is only computed for RGB* surfaces.
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if (format < 0x7) {
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int bpp = 4;
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switch(format)
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{
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case HAL_PIXEL_FORMAT_RGB_888:
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bpp = 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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bpp = 2;
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break;
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default: break;
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}
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if ((libadreno_utils) && (LINK_adreno_compute_padding)) {
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int surface_tile_height = 1; // Linear surface
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int raster_mode = 1; // Adreno TW raster mode.
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int padding_threshold = 512; // Threshold for padding surfaces.
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// the function below expects the width to be a multiple of
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// 32 pixels, hence we pass stride instead of width.
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stride = LINK_adreno_compute_padding(stride, bpp,
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surface_tile_height, raster_mode,
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padding_threshold);
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}
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} else {
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switch (format)
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{
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case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
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stride = ALIGN(width, 32);
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break;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
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stride = ALIGN(width, 128);
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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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case HAL_PIXEL_FORMAT_YCbCr_422_SP:
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case HAL_PIXEL_FORMAT_YCrCb_422_SP:
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stride = ALIGN(width, 16);
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break;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
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stride = VENUS_Y_STRIDE(COLOR_FMT_NV12, width);
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break;
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default: break;
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}
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}
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return stride;
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}
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//-------------- IAllocController-----------------------//
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IAllocController* IAllocController::sController = NULL;
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IAllocController* IAllocController::getInstance(void)
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{
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if(sController == NULL) {
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sController = new IonController();
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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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{
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int ionFlags = 0;
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int ret;
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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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if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)
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ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
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//MM Heap is exclusively a secure heap.
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if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) {
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//XXX: Right now the MM heap is the only secure heap we have. When we
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//have other secure heaps, we can change this.
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if(usage & GRALLOC_USAGE_PROTECTED) {
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ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
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ionFlags |= ION_SECURE;
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}
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else {
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ALOGW("GRALLOC_USAGE_PRIVATE_MM_HEAP \
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cannot be used as an insecure heap!\
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trying to use IOMMU instead !!");
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ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
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}
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}
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if(usage & GRALLOC_USAGE_PRIVATE_ADSP_HEAP)
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ionFlags |= ION_HEAP(ION_ADSP_HEAP_ID);
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if(usage & GRALLOC_USAGE_PROTECTED)
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data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER;
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// if no flags are set, default to
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// SF + IOMMU heaps, 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) | ION_HEAP(ION_IOMMU_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(usage,
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(ionFlags & ION_SYSTEM_HEAP_ID)))
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{
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ALOGW("Falling back to system heap");
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data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID);
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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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}
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return ret;
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}
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IMemAlloc* IonController::getAllocator(int flags)
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{
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IMemAlloc* memalloc = NULL;
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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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ALOGE("%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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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 = AdrenoMemInfo::getInstance().getStride(width, format);
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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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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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ALOGE("w or h is odd for the YV12 format");
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return -EINVAL;
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}
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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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case HAL_PIXEL_FORMAT_YCbCr_422_SP:
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case HAL_PIXEL_FORMAT_YCrCb_422_SP:
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if(width & 1) {
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ALOGE("width is odd for the YUV422_SP format");
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return -EINVAL;
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}
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alignedh = height;
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size = ALIGN(alignedw * alignedh * 2, 4096);
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break;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
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alignedh = VENUS_Y_SCANLINES(COLOR_FMT_NV12, height);
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size = VENUS_BUFFER_SIZE(COLOR_FMT_NV12, width, height);
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break;
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default:
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ALOGE("unrecognized pixel format: 0x%x", 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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gralloc::IAllocController* sAlloc =
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gralloc::IAllocController::getInstance();
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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);
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if (0 != err) {
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ALOGE("%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,
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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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gralloc::IAllocController* sAlloc =
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gralloc::IAllocController::getInstance();
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if (hnd && hnd->fd > 0) {
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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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