694752d90d
For secure content the MM heap should never be mapped in userspace. Add a flag to avoid doing this for rotator which does not need userspace mapping. (cherry picked from commit 8d9f2fa336564d5a021dd932f5619b5f389d5fad) Change-Id: I17d1faa40859e261518d928089f2ce86084d31fd CRs-fixed: 332402
389 lines
11 KiB
C++
389 lines
11 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef GRALLOC_PRIV_H_
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#define GRALLOC_PRIV_H_
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#include <stdint.h>
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#include <limits.h>
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#include <sys/cdefs.h>
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#include <hardware/gralloc.h>
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#include <pthread.h>
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#include <errno.h>
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#include <unistd.h>
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#include <cutils/native_handle.h>
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#include <linux/fb.h>
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#if defined(__cplusplus) && defined(HDMI_DUAL_DISPLAY)
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#include "overlayLib.h"
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using namespace overlay;
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#endif
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enum {
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/* gralloc usage bits indicating the type
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* of allocation that should be used */
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/* ADSP heap is deprecated, use only if using pmem */
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GRALLOC_USAGE_PRIVATE_ADSP_HEAP = GRALLOC_USAGE_PRIVATE_0,
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/* SF heap is used for application buffers, is not secured */
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GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP = GRALLOC_USAGE_PRIVATE_1,
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/* SMI heap is deprecated, use only if using pmem */
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GRALLOC_USAGE_PRIVATE_SMI_HEAP = GRALLOC_USAGE_PRIVATE_2,
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/* SYSTEM heap comes from kernel vmalloc,
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* can never be uncached, is not secured*/
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GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP = GRALLOC_USAGE_PRIVATE_3,
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/* IOMMU heap comes from manually allocated pages,
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* can be cached/uncached, is not secured */
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GRALLOC_USAGE_PRIVATE_IOMMU_HEAP = 0x01000000,
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/* MM heap is a carveout heap for video, can be secured*/
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GRALLOC_USAGE_PRIVATE_MM_HEAP = 0x02000000,
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/* WRITEBACK heap is a carveout heap for writeback, can be secured*/
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GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP = 0x04000000,
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/* CAMERA heap is a carveout heap for camera, is not secured*/
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GRALLOC_USAGE_PRIVATE_CAMERA_HEAP = 0x08000000,
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/* Set this for allocating uncached memory (using O_DSYNC)
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* cannot be used with noncontiguous heaps */
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GRALLOC_USAGE_PRIVATE_UNCACHED = 0x00010000,
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/* This flag needs to be set when using a non-contiguous heap from ION.
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* If not set, the system heap is assumed to be coming from ashmem
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*/
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GRALLOC_USAGE_PRIVATE_ION = 0x00020000,
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/* This flag can be set to disable genlock synchronization
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* for the gralloc buffer. If this flag is set the caller
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* is required to perform explicit synchronization.
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* WARNING - flag is outside the standard PRIVATE region
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* and may need to be moved if the gralloc API changes
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*/
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GRALLOC_USAGE_PRIVATE_UNSYNCHRONIZED = 0X00040000,
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/* Set this flag when you need to avoid mapping the memory in userspace */
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GRALLOC_USAGE_PRIVATE_DO_NOT_MAP = 0X00080000,
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};
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enum {
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/* Gralloc perform enums
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*/
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GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER = 0x080000001,
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};
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enum {
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GPU_COMPOSITION,
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C2D_COMPOSITION,
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MDP_COMPOSITION,
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CPU_COMPOSITION,
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};
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/* numbers of max buffers for page flipping */
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#define NUM_FRAMEBUFFERS_MIN 2
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#define NUM_FRAMEBUFFERS_MAX 3
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/* number of default bufers for page flipping */
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#define NUM_DEF_FRAME_BUFFERS 2
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#define NO_SURFACEFLINGER_SWAPINTERVAL
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#define INTERLACE_MASK 0x80
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#define S3D_FORMAT_MASK 0xFF000
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#define COLOR_FORMAT(x) (x & 0xFFF) // Max range for colorFormats is 0 - FFF
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#define DEVICE_PMEM "/dev/pmem"
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#define DEVICE_PMEM_ADSP "/dev/pmem_adsp"
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#define DEVICE_PMEM_SMIPOOL "/dev/pmem_smipool"
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/*****************************************************************************/
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#ifdef __cplusplus
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//XXX: Remove framebuffer specific classes and defines to a different header
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template <class T>
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struct Node
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{
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T data;
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Node<T> *next;
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};
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template <class T>
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class Queue
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{
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public:
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Queue(): front(NULL), back(NULL), len(0) {dummy = new T;}
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~Queue()
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{
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clear();
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delete dummy;
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}
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void push(const T& item) //add an item to the back of the queue
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{
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if(len != 0) { //if the queue is not empty
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back->next = new Node<T>; //create a new node
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back = back->next; //set the new node as the back node
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back->data = item;
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back->next = NULL;
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} else {
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back = new Node<T>;
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back->data = item;
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back->next = NULL;
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front = back;
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}
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len++;
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}
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void pop() //remove the first item from the queue
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{
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if (isEmpty())
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return; //if the queue is empty, no node to dequeue
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T item = front->data;
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Node<T> *tmp = front;
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front = front->next;
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delete tmp;
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if(front == NULL) //if the queue is empty, update the back pointer
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back = NULL;
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len--;
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return;
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}
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T& getHeadValue() const //return the value of the first item in the queue
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{ //without modification to the structure
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if (isEmpty()) {
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LOGE("Error can't get head of empty queue");
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return *dummy;
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}
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return front->data;
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}
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bool isEmpty() const //returns true if no elements are in the queue
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{
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return (front == NULL);
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}
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size_t size() const //returns the amount of elements in the queue
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{
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return len;
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}
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private:
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Node<T> *front;
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Node<T> *back;
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size_t len;
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void clear()
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{
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while (!isEmpty())
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pop();
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}
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T *dummy;
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};
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#endif
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enum {
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/* OEM specific HAL formats */
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HAL_PIXEL_FORMAT_NV12_ENCODEABLE = 0x102,
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HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x108,
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HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109,
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HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x10A,
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HAL_PIXEL_FORMAT_YCrCb_422_SP = 0x10B,
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HAL_PIXEL_FORMAT_R_8 = 0x10D,
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HAL_PIXEL_FORMAT_RG_88 = 0x10E,
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HAL_PIXEL_FORMAT_INTERLACE = 0x180,
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};
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/* possible formats for 3D content*/
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enum {
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HAL_NO_3D = 0x0000,
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HAL_3D_IN_SIDE_BY_SIDE_L_R = 0x10000,
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HAL_3D_IN_TOP_BOTTOM = 0x20000,
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HAL_3D_IN_INTERLEAVE = 0x40000,
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HAL_3D_IN_SIDE_BY_SIDE_R_L = 0x80000,
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HAL_3D_OUT_SIDE_BY_SIDE = 0x1000,
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HAL_3D_OUT_TOP_BOTTOM = 0x2000,
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HAL_3D_OUT_INTERLEAVE = 0x4000,
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HAL_3D_OUT_MONOSCOPIC = 0x8000
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};
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enum {
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BUFFER_TYPE_UI = 0,
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BUFFER_TYPE_VIDEO
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};
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#if defined(HDMI_DUAL_DISPLAY)
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enum hdmi_mirroring_state {
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HDMI_NO_MIRRORING,
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HDMI_UI_MIRRORING,
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HDMI_ORIGINAL_RESOLUTION_MIRRORING
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};
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#endif
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/*****************************************************************************/
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struct private_module_t;
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struct private_handle_t;
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struct PmemAllocator;
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struct qbuf_t {
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buffer_handle_t buf;
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int idx;
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};
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enum buf_state {
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SUB,
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REF,
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AVL
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};
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struct avail_t {
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pthread_mutex_t lock;
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pthread_cond_t cond;
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#ifdef __cplusplus
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bool is_avail;
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buf_state state;
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#endif
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};
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struct private_module_t {
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gralloc_module_t base;
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struct private_handle_t* framebuffer;
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uint32_t fbFormat;
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uint32_t flags;
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uint32_t numBuffers;
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uint32_t bufferMask;
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pthread_mutex_t lock;
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buffer_handle_t currentBuffer;
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struct fb_var_screeninfo info;
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struct fb_fix_screeninfo finfo;
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float xdpi;
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float ydpi;
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float fps;
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int swapInterval;
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#ifdef __cplusplus
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Queue<struct qbuf_t> disp; // non-empty when buffer is ready for display
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#endif
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int currentIdx;
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struct avail_t avail[NUM_FRAMEBUFFERS_MAX];
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pthread_mutex_t qlock;
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pthread_cond_t qpost;
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enum {
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// flag to indicate we'll post this buffer
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PRIV_USAGE_LOCKED_FOR_POST = 0x80000000,
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PRIV_MIN_SWAP_INTERVAL = 0,
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PRIV_MAX_SWAP_INTERVAL = 1,
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};
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#if defined(__cplusplus) && defined(HDMI_DUAL_DISPLAY)
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Overlay* pobjOverlay;
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int orientation;
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bool videoOverlay;
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uint32_t currentOffset;
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int enableHDMIOutput; // holds the type of external display
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bool trueMirrorSupport;
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bool exitHDMIUILoop;
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float actionsafeWidthRatio;
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float actionsafeHeightRatio;
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bool hdmiStateChanged;
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hdmi_mirroring_state hdmiMirroringState;
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pthread_mutex_t overlayLock;
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pthread_cond_t overlayPost;
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#endif
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};
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/*****************************************************************************/
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#ifdef __cplusplus
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struct private_handle_t : public native_handle {
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#else
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struct private_handle_t {
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native_handle_t nativeHandle;
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#endif
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enum {
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PRIV_FLAGS_FRAMEBUFFER = 0x00000001,
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PRIV_FLAGS_USES_PMEM = 0x00000002,
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PRIV_FLAGS_USES_PMEM_ADSP = 0x00000004,
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PRIV_FLAGS_USES_ION = 0x00000008,
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PRIV_FLAGS_USES_ASHMEM = 0x00000010,
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PRIV_FLAGS_NEEDS_FLUSH = 0x00000020,
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PRIV_FLAGS_DO_NOT_FLUSH = 0x00000040,
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PRIV_FLAGS_SW_LOCK = 0x00000080,
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PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100,
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PRIV_FLAGS_HWC_LOCK = 0x00000200, // Set by HWC when storing the handle
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PRIV_FLAGS_SECURE_BUFFER = 0x00000400,
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PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800, // For explicit synchronization
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PRIV_FLAGS_NOT_MAPPED = 0x00001000, // Not mapped in userspace
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};
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// file-descriptors
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int fd;
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int genlockHandle; // genlock handle to be dup'd by the binder
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// ints
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int magic;
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int flags;
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int size;
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int offset;
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int bufferType;
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// FIXME: the attributes below should be out-of-line
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int base;
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int gpuaddr; // The gpu address mapped into the mmu. If using ashmem, set to 0 They don't care
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int pid;
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int format;
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int width;
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int height;
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int genlockPrivFd; // local fd of the genlock device.
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#ifdef __cplusplus
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static const int sNumInts = 12;
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static const int sNumFds = 2;
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static const int sMagic = 'gmsm';
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private_handle_t(int fd, int size, int flags, int bufferType, int format, int width, int height) :
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fd(fd), genlockHandle(-1), magic(sMagic), flags(flags), size(size), offset(0),
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bufferType(bufferType), base(0), gpuaddr(0), pid(getpid()), format(format),
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width(width), height(height), genlockPrivFd(-1)
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{
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version = sizeof(native_handle);
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numInts = sNumInts;
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numFds = sNumFds;
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}
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~private_handle_t() {
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magic = 0;
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}
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bool usesPhysicallyContiguousMemory() {
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return (flags & PRIV_FLAGS_USES_PMEM) != 0;
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}
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static int validate(const native_handle* h) {
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const private_handle_t* hnd = (const private_handle_t*)h;
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if (!h || h->version != sizeof(native_handle) ||
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h->numInts != sNumInts || h->numFds != sNumFds ||
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hnd->magic != sMagic)
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{
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LOGE("invalid gralloc handle (at %p)", h);
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return -EINVAL;
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}
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return 0;
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}
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static private_handle_t* dynamicCast(const native_handle* in) {
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if (validate(in) == 0) {
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return (private_handle_t*) in;
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}
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return NULL;
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}
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#endif
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};
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#endif /* GRALLOC_PRIV_H_ */
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