android13/hardware/google/graphics/common/libhwc2.1/libdisplayinterface/ExynosDisplayDrmInterface.h

505 lines
21 KiB
C++

/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _EXYNOSDISPLAYDRMINTERFACE_H
#define _EXYNOSDISPLAYDRMINTERFACE_H
#include <drm/samsung_drm.h>
#include <utils/Condition.h>
#include <utils/Mutex.h>
#include <xf86drmMode.h>
#include <list>
#include <unordered_map>
#include "ExynosDisplay.h"
#include "ExynosDisplayInterface.h"
#include "ExynosHWC.h"
#include "ExynosMPP.h"
#include "drmconnector.h"
#include "drmcrtc.h"
#include "histogram/histogram.h"
#include "vsyncworker.h"
/* Max plane number of buffer object */
#define HWC_DRM_BO_MAX_PLANES 4
#ifndef HWC_FORCE_PANIC_PATH
#define HWC_FORCE_PANIC_PATH "/d/dpu/panic"
#endif
using namespace android;
class ExynosDevice;
template <typename T>
using DrmArray = std::array<T, HWC_DRM_BO_MAX_PLANES>;
class FramebufferManager {
public:
FramebufferManager(){};
~FramebufferManager();
void init(int drmFd);
// get buffer for provided config, if a buffer with same config is already cached it will be
// reused otherwise one will be allocated. returns fbId that can be used to attach to the
// plane, any buffers allocated/reused with this call will be bound to the corresponding
// layer. Those fbIds will be cleaned up once the layer was destroyed.
int32_t getBuffer(const exynos_win_config_data &config, uint32_t &fbId);
bool checkShrink();
void cleanup(const ExynosLayer *layer);
// The flip function is to help clean up the cached fbIds of destroyed
// layers after the previous fdIds were update successfully on the
// screen.
// This should be called after the frame update.
void flip(bool hasSecureFrameBuffer);
// release all currently tracked buffers, this can be called for example when display is turned
// off
void releaseAll();
private:
// this struct should contain elements that can be used to identify framebuffer more easily
struct Framebuffer {
struct BufferDesc {
uint64_t bufferId;
int drmFormat;
bool isSecure;
bool operator==(const Framebuffer::BufferDesc &rhs) const {
return (bufferId == rhs.bufferId && drmFormat == rhs.drmFormat &&
isSecure == rhs.isSecure);
}
};
struct SolidColorDesc {
uint32_t width;
uint32_t height;
bool operator==(const Framebuffer::SolidColorDesc &rhs) const {
return (width == rhs.width && height == rhs.height);
}
};
explicit Framebuffer(int fd, uint32_t fb, BufferDesc desc)
: drmFd(fd), fbId(fb), bufferDesc(desc){};
explicit Framebuffer(int fd, uint32_t fb, SolidColorDesc desc)
: drmFd(fd), fbId(fb), colorDesc(desc){};
~Framebuffer() { drmModeRmFB(drmFd, fbId); };
int drmFd;
uint32_t fbId;
union {
BufferDesc bufferDesc;
SolidColorDesc colorDesc;
};
};
using FBList = std::list<std::unique_ptr<Framebuffer>>;
template <class UnaryPredicate>
uint32_t findCachedFbId(const ExynosLayer *layer, UnaryPredicate predicate);
int addFB2WithModifiers(uint32_t state, uint32_t width, uint32_t height, uint32_t drmFormat,
const DrmArray<uint32_t> &handles,
const DrmArray<uint32_t> &pitches,
const DrmArray<uint32_t> &offsets,
const DrmArray<uint64_t> &modifier, uint32_t *buf_id,
uint32_t flags);
bool validateLayerInfo(uint32_t state, uint32_t pixel_format,
const DrmArray<uint32_t> &handles,
const DrmArray<uint64_t> &modifier);
uint32_t getBufHandleFromFd(int fd);
void freeBufHandle(uint32_t handle);
void removeFBsThreadRoutine();
void markInuseLayerLocked(const ExynosLayer *layer) REQUIRES(mMutex);
void destroyUnusedLayersLocked() REQUIRES(mMutex);
void destroySecureFramebufferLocked() REQUIRES(mMutex);
int mDrmFd = -1;
// mCachedLayerBuffers map keep the relationship between Layer and
// FBList. The map entry will be deleted once the layer is destroyed.
std::map<const ExynosLayer *, FBList> mCachedLayerBuffers;
// mCleanBuffers list keeps fbIds of destroyed layers. Those fbIds will
// be destroyed in mRmFBThread thread.
FBList mCleanBuffers;
// mCacheShrinkPending is set when we want to clean up unused layers
// in mCachedLayerBuffers. When the flag is set, mCachedLayersInuse will
// keep in-use layers in this frame update. Those unused layers will be
// freed at the end of the update.
// TODO: have a better way to maintain inuse layers
bool mCacheShrinkPending = false;
bool mHasSecureFramebuffer = false;
std::set<const ExynosLayer *> mCachedLayersInuse;
std::thread mRmFBThread;
bool mRmFBThreadRunning = false;
Condition mFlipDone;
Mutex mMutex;
static constexpr size_t MAX_CACHED_LAYERS = 16;
static constexpr size_t MAX_CACHED_BUFFERS_PER_LAYER = 32;
static constexpr size_t MAX_CACHED_SECURE_BUFFERS_PER_G2D_LAYER = 3;
};
inline bool isFramebuffer(const ExynosLayer *layer) {
return layer == nullptr;
}
template <class UnaryPredicate>
uint32_t FramebufferManager::findCachedFbId(const ExynosLayer *layer, UnaryPredicate predicate) {
Mutex::Autolock lock(mMutex);
markInuseLayerLocked(layer);
const auto &cachedBuffers = mCachedLayerBuffers[layer];
const auto it = std::find_if(cachedBuffers.begin(), cachedBuffers.end(), predicate);
return (it != cachedBuffers.end()) ? (*it)->fbId : 0;
}
class ExynosDisplayDrmInterface :
public ExynosDisplayInterface,
public VsyncCallback
{
public:
class DrmModeAtomicReq {
public:
DrmModeAtomicReq(ExynosDisplayDrmInterface *displayInterface);
~DrmModeAtomicReq();
DrmModeAtomicReq(const DrmModeAtomicReq&) = delete;
DrmModeAtomicReq& operator=(const DrmModeAtomicReq&) = delete;
drmModeAtomicReqPtr pset() { return mPset; };
void savePset() {
if (mSavedPset) {
drmModeAtomicFree(mSavedPset);
}
mSavedPset = drmModeAtomicDuplicate(mPset);
}
void restorePset() {
if (mPset) {
drmModeAtomicFree(mPset);
}
mPset = mSavedPset;
mSavedPset = NULL;
}
void setError(int err) { mError = err; };
int getError() { return mError; };
int32_t atomicAddProperty(const uint32_t id,
const DrmProperty &property,
uint64_t value, bool optional = false);
String8& dumpAtomicCommitInfo(String8 &result, bool debugPrint = false);
int commit(uint32_t flags, bool loggingForDebug = false);
void addOldBlob(uint32_t blob_id) {
mOldBlobs.push_back(blob_id);
};
int destroyOldBlobs() {
for (auto &blob : mOldBlobs) {
int ret = mDrmDisplayInterface->mDrmDevice->DestroyPropertyBlob(blob);
if (ret) {
HWC_LOGE(mDrmDisplayInterface->mExynosDisplay,
"Failed to destroy old blob after commit %d", ret);
return ret;
}
}
mOldBlobs.clear();
return NO_ERROR;
};
private:
drmModeAtomicReqPtr mPset;
drmModeAtomicReqPtr mSavedPset;
int mError = 0;
ExynosDisplayDrmInterface *mDrmDisplayInterface = NULL;
/* Destroy old blobs after commit */
std::vector<uint32_t> mOldBlobs;
int drmFd() const { return mDrmDisplayInterface->mDrmDevice->fd(); }
};
class ExynosVsyncCallback {
public:
void enableVSync(bool enable) {
mVsyncEnabled = enable;
resetVsyncTimeStamp();
};
bool getVSyncEnabled() { return mVsyncEnabled; };
void setDesiredVsyncPeriod(uint64_t period) {
mDesiredVsyncPeriod = period;
resetVsyncTimeStamp();
};
uint64_t getDesiredVsyncPeriod() { return mDesiredVsyncPeriod;};
uint64_t getVsyncTimeStamp() { return mVsyncTimeStamp; };
uint64_t getVsyncPeriod() { return mVsyncPeriod; };
bool Callback(int display, int64_t timestamp);
void resetVsyncTimeStamp() { mVsyncTimeStamp = 0; };
void resetDesiredVsyncPeriod() { mDesiredVsyncPeriod = 0;};
private:
bool mVsyncEnabled = false;
uint64_t mVsyncTimeStamp = 0;
uint64_t mVsyncPeriod = 0;
uint64_t mDesiredVsyncPeriod = 0;
};
void Callback(int display, int64_t timestamp) override;
ExynosDisplayDrmInterface(ExynosDisplay *exynosDisplay);
~ExynosDisplayDrmInterface();
virtual void init(ExynosDisplay *exynosDisplay);
virtual int32_t setPowerMode(int32_t mode);
virtual int32_t setLowPowerMode() override;
virtual bool isDozeModeAvailable() const {
return mDozeDrmMode.h_display() > 0 && mDozeDrmMode.v_display() > 0;
};
virtual int32_t setVsyncEnabled(uint32_t enabled);
virtual int32_t getDisplayConfigs(
uint32_t* outNumConfigs,
hwc2_config_t* outConfigs);
virtual void dumpDisplayConfigs();
virtual bool supportDataspace(int32_t dataspace);
virtual int32_t getColorModes(uint32_t* outNumModes, int32_t* outModes);
virtual int32_t setColorMode(int32_t mode);
virtual int32_t setActiveConfig(hwc2_config_t config);
virtual int32_t setCursorPositionAsync(uint32_t x_pos, uint32_t y_pos);
virtual int32_t updateHdrCapabilities();
virtual int32_t deliverWinConfigData();
virtual int32_t clearDisplay(bool needModeClear = false);
virtual int32_t disableSelfRefresh(uint32_t disable);
virtual int32_t setForcePanic();
virtual int getDisplayFd() { return mDrmDevice->fd(); };
virtual int32_t initDrmDevice(DrmDevice *drmDevice);
virtual uint32_t getDrmDisplayId(uint32_t type, uint32_t index);
virtual uint32_t getMaxWindowNum() { return mMaxWindowNum; };
virtual int32_t getReadbackBufferAttributes(int32_t* /*android_pixel_format_t*/ outFormat,
int32_t* /*android_dataspace_t*/ outDataspace);
virtual int32_t getDisplayIdentificationData(uint8_t* outPort,
uint32_t* outDataSize, uint8_t* outData);
/* For HWC 2.4 APIs */
virtual int32_t getDisplayVsyncPeriod(
hwc2_vsync_period_t* outVsyncPeriod);
virtual int32_t getConfigChangeDuration();
virtual int32_t getVsyncAppliedTime(hwc2_config_t config,
int64_t* actualChangeTime);
virtual int32_t setActiveConfigWithConstraints(
hwc2_config_t config, bool test = false);
virtual int32_t setDisplayColorSetting(
ExynosDisplayDrmInterface::DrmModeAtomicReq __unused &drmReq) {
return NO_ERROR;
}
virtual int32_t setPlaneColorSetting(
ExynosDisplayDrmInterface::DrmModeAtomicReq &drmReq,
const std::unique_ptr<DrmPlane> &plane,
const exynos_win_config_data& config,
uint32_t &solidColor)
{ return NO_ERROR;};
virtual void destroyLayer(ExynosLayer *layer) override;
/* For HWC 3.0 APIs */
virtual int32_t getDisplayIdleTimerSupport(bool &outSupport);
virtual int32_t getDefaultModeId(int32_t *modeId) override;
virtual int32_t waitVBlank();
float getDesiredRefreshRate() { return mDesiredModeState.mode.v_refresh(); }
/* For Histogram */
virtual int32_t setDisplayHistogramSetting(
ExynosDisplayDrmInterface::DrmModeAtomicReq &drmReq) {
return NO_ERROR;
}
int32_t getFrameCount() { return mFrameCounter; }
virtual void registerHistogramInfo(const std::shared_ptr<IDLHistogram> &info) { return; }
virtual int32_t setHistogramControl(hidl_histogram_control_t enabled) { return NO_ERROR; }
virtual int32_t setHistogramData(void *bin) { return NO_ERROR; }
int32_t getActiveModeHDisplay() { return mActiveModeState.mode.h_display(); }
int32_t getActiveModeVDisplay() { return mActiveModeState.mode.v_display(); }
int32_t panelHsize() { return mPanelResolutionHsize; }
int32_t panelVsize() { return mPanelResolutionVsize; }
int32_t getPanelResolution();
uint32_t getCrtcId() { return mDrmCrtc->id(); }
protected:
enum class HalMipiSyncType : uint32_t {
HAL_MIPI_CMD_SYNC_REFRESH_RATE = 0,
HAL_MIPI_CMD_SYNC_LHBM,
HAL_MIPI_CMD_SYNC_GHBM,
HAL_MIPI_CMD_SYNC_BL,
};
struct ModeState {
enum ModeStateType {
MODE_STATE_NONE = 0U,
MODE_STATE_REFRESH_RATE = 1U << 0,
MODE_STATE_RESOLUTION = 1U << 1,
MODE_STATE_FORCE_MODE_SET = 1U << 2,
};
DrmMode mode;
uint32_t blob_id = 0;
uint32_t old_blob_id = 0;
void setMode(const DrmMode newMode, const uint32_t modeBlob,
DrmModeAtomicReq &drmReq) {
if (newMode.v_refresh() != mode.v_refresh()) {
mModeState |= ModeStateType::MODE_STATE_REFRESH_RATE;
}
if (isFullModeSwitch(newMode)) {
mModeState |= ModeStateType::MODE_STATE_RESOLUTION;
}
drmReq.addOldBlob(old_blob_id);
mode = newMode;
old_blob_id = blob_id;
blob_id = modeBlob;
};
void reset() {
*this = {};
};
void apply(ModeState &toModeState, DrmModeAtomicReq &drmReq) {
toModeState.setMode(mode, blob_id, drmReq);
drmReq.addOldBlob(old_blob_id);
reset();
};
int32_t mModeState = ModeStateType::MODE_STATE_NONE;
void forceModeSet() { mModeState |= ModeStateType::MODE_STATE_FORCE_MODE_SET; }
void clearPendingModeState() { mModeState = ModeStateType::MODE_STATE_NONE; }
bool needsModeSet() const { return mModeState != ModeStateType::MODE_STATE_NONE; }
bool isSeamless() const { return !(mModeState & ModeStateType::MODE_STATE_RESOLUTION); }
bool isFullModeSwitch(const DrmMode &newMode) {
if ((mode.h_display() != newMode.h_display()) ||
(mode.v_display() != newMode.v_display()))
return true;
return false;
}
};
int32_t createModeBlob(const DrmMode &mode, uint32_t &modeBlob);
int32_t setDisplayMode(DrmModeAtomicReq &drmReq, const uint32_t modeBlob);
int32_t clearDisplayMode(DrmModeAtomicReq &drmReq);
int32_t clearDisplayPlanes(DrmModeAtomicReq &drmReq);
int32_t chosePreferredConfig();
int getDeconChannel(ExynosMPP *otfMPP);
/*
* This function adds FB and gets new fb id if fbId is 0,
* if fbId is not 0, this reuses fbId.
*/
int32_t setupCommitFromDisplayConfig(DrmModeAtomicReq &drmReq,
const exynos_win_config_data &config,
const uint32_t configIndex,
const std::unique_ptr<DrmPlane> &plane,
uint32_t &fbId);
int32_t setupPartialRegion(DrmModeAtomicReq &drmReq);
void parseBlendEnums(const DrmProperty &property);
void parseStandardEnums(const DrmProperty &property);
void parseTransferEnums(const DrmProperty &property);
void parseRangeEnums(const DrmProperty &property);
void parseColorModeEnums(const DrmProperty &property);
void parseMipiSyncEnums(const DrmProperty &property);
void updateMountOrientation();
int32_t setupWritebackCommit(DrmModeAtomicReq &drmReq);
int32_t clearWritebackCommit(DrmModeAtomicReq &drmReq);
private:
int32_t updateColorSettings(DrmModeAtomicReq &drmReq, uint64_t dqeEnabled);
int32_t getLowPowerDrmModeModeInfo();
int32_t setActiveDrmMode(DrmMode const &mode);
void setMaxWindowNum(uint32_t num) { mMaxWindowNum = num; };
protected:
struct PartialRegionState {
struct drm_clip_rect partial_rect = {0, 0, 0, 0};
uint32_t blob_id = 0;
bool isUpdated(drm_clip_rect rect) {
return ((partial_rect.x1 != rect.x1) ||
(partial_rect.y1 != rect.y1) ||
(partial_rect.x2 != rect.x2) ||
(partial_rect.y2 != rect.y2));
};
};
struct BlockingRegionState {
struct decon_win_rect mRegion;
uint32_t mBlobId = 0;
inline bool operator==(const decon_win_rect &rhs) const {
return mRegion.x == rhs.x && mRegion.y == rhs.y && mRegion.w == rhs.w &&
mRegion.h == rhs.h;
}
inline bool operator!=(const decon_win_rect &rhs) const { return !(*this == rhs); }
};
class DrmReadbackInfo {
public:
void init(DrmDevice *drmDevice, uint32_t displayId);
~DrmReadbackInfo() {
if (mDrmDevice == NULL)
return;
if (mOldFbId > 0)
drmModeRmFB(mDrmDevice->fd(), mOldFbId);
if (mFbId > 0)
drmModeRmFB(mDrmDevice->fd(), mFbId);
}
DrmConnector* getWritebackConnector() { return mWritebackConnector; };
void setFbId(uint32_t fbId) {
if ((mDrmDevice != NULL) && (mOldFbId > 0))
drmModeRmFB(mDrmDevice->fd(), mOldFbId);
mOldFbId = mFbId;
mFbId = fbId;
}
void pickFormatDataspace();
static constexpr uint32_t PREFERRED_READBACK_FORMAT =
HAL_PIXEL_FORMAT_RGBA_8888;
uint32_t mReadbackFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
bool mNeedClearReadbackCommit = false;
private:
DrmDevice *mDrmDevice = NULL;
DrmConnector *mWritebackConnector = NULL;
uint32_t mFbId = 0;
uint32_t mOldFbId = 0;
std::vector<uint32_t> mSupportedFormats;
};
DrmDevice *mDrmDevice;
DrmCrtc *mDrmCrtc;
DrmConnector *mDrmConnector;
VSyncWorker mDrmVSyncWorker;
ExynosVsyncCallback mVsyncCallback;
ModeState mActiveModeState;
ModeState mDesiredModeState;
PartialRegionState mPartialRegionState;
BlockingRegionState mBlockState;
/* Mapping plane id to ExynosMPP, key is plane id */
std::unordered_map<uint32_t, ExynosMPP*> mExynosMPPsForPlane;
DrmEnumParser::MapHal2DrmEnum mBlendEnums;
DrmEnumParser::MapHal2DrmEnum mStandardEnums;
DrmEnumParser::MapHal2DrmEnum mTransferEnums;
DrmEnumParser::MapHal2DrmEnum mRangeEnums;
DrmEnumParser::MapHal2DrmEnum mColorModeEnums;
DrmEnumParser::MapHal2DrmEnum mMipiSyncEnums;
DrmReadbackInfo mReadbackInfo;
FramebufferManager mFBManager;
private:
int32_t getDisplayFakeEdid(uint8_t &outPort, uint32_t &outDataSize, uint8_t *outData);
DrmMode mDozeDrmMode;
uint32_t mMaxWindowNum = 0;
int32_t mFrameCounter = 0;
int32_t mPanelResolutionHsize = 0;
int32_t mPanelResolutionVsize = 0;
};
#endif