Merge "Increase sensor registration log size" into nyc-mr1-dev
diff --git a/include/gui/BufferQueueCore.h b/include/gui/BufferQueueCore.h
index 6c69d69..98add9e 100644
--- a/include/gui/BufferQueueCore.h
+++ b/include/gui/BufferQueueCore.h
@@ -325,6 +325,8 @@
OccupancyTracker mOccupancyTracker;
+ const uint64_t mUniqueId;
+
}; // class BufferQueueCore
} // namespace android
diff --git a/include/gui/BufferQueueProducer.h b/include/gui/BufferQueueProducer.h
index a85bbb7..579ffb9 100644
--- a/include/gui/BufferQueueProducer.h
+++ b/include/gui/BufferQueueProducer.h
@@ -190,6 +190,9 @@
virtual bool getFrameTimestamps(uint64_t frameNumber,
FrameTimestamps* outTimestamps) const override;
+ // See IGraphicBufferProducer::getUniqueId
+ virtual status_t getUniqueId(uint64_t* outId) const override;
+
private:
// This is required by the IBinder::DeathRecipient interface
virtual void binderDied(const wp<IBinder>& who);
diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index 0c24606..47bb43a 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -578,6 +578,9 @@
// If a fence has not yet signaled the timestamp returned will be 0;
virtual bool getFrameTimestamps(uint64_t /*frameNumber*/,
FrameTimestamps* /*outTimestamps*/) const { return false; }
+
+ // Returns a unique id for this BufferQueue
+ virtual status_t getUniqueId(uint64_t* outId) const = 0;
};
// ----------------------------------------------------------------------------
diff --git a/include/gui/Surface.h b/include/gui/Surface.h
index 7d9d901..b9ffc49 100644
--- a/include/gui/Surface.h
+++ b/include/gui/Surface.h
@@ -140,6 +140,8 @@
nsecs_t* outGlCompositionDoneTime, nsecs_t* outDisplayRetireTime,
nsecs_t* outReleaseTime);
+ status_t getUniqueId(uint64_t* outId) const;
+
protected:
virtual ~Surface();
@@ -196,7 +198,6 @@
virtual int cancelBuffer(ANativeWindowBuffer* buffer, int fenceFd);
virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd);
virtual int perform(int operation, va_list args);
- virtual int query(int what, int* value) const;
virtual int setSwapInterval(int interval);
virtual int lockBuffer_DEPRECATED(ANativeWindowBuffer* buffer);
@@ -222,6 +223,7 @@
virtual int setAutoRefresh(bool autoRefresh);
virtual int lock(ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds);
virtual int unlockAndPost();
+ virtual int query(int what, int* value) const;
virtual int connect(int api, const sp<IProducerListener>& listener);
virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer,
@@ -368,6 +370,10 @@
// used to prevent a mismatch between the number of queue/dequeue calls.
bool mSharedBufferHasBeenQueued;
+ // These are used to satisfy the NATIVE_WINDOW_LAST_*_DURATION queries
+ nsecs_t mLastDequeueDuration = 0;
+ nsecs_t mLastQueueDuration = 0;
+
Condition mQueueBufferCondition;
};
diff --git a/libs/gui/BufferQueueCore.cpp b/libs/gui/BufferQueueCore.cpp
index ba34eb6..569b8f9 100644
--- a/libs/gui/BufferQueueCore.cpp
+++ b/libs/gui/BufferQueueCore.cpp
@@ -44,6 +44,12 @@
android_atomic_inc(&counter));
}
+static uint64_t getUniqueId() {
+ static std::atomic<uint32_t> counter{0};
+ static uint64_t id = static_cast<uint64_t>(getpid()) << 32;
+ return id | counter++;
+}
+
BufferQueueCore::BufferQueueCore(const sp<IGraphicBufferAlloc>& allocator) :
mAllocator(allocator),
mMutex(),
@@ -82,7 +88,8 @@
mAutoRefresh(false),
mSharedBufferSlot(INVALID_BUFFER_SLOT),
mSharedBufferCache(Rect::INVALID_RECT, 0, NATIVE_WINDOW_SCALING_MODE_FREEZE,
- HAL_DATASPACE_UNKNOWN)
+ HAL_DATASPACE_UNKNOWN),
+ mUniqueId(getUniqueId())
{
if (allocator == NULL) {
sp<ISurfaceComposer> composer(ComposerService::getComposerService());
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 7ca92b7..49db4aa 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -509,11 +509,15 @@
mCore->mIsAllocatingCondition.broadcast();
if (graphicBuffer == NULL) {
+ mCore->mFreeSlots.insert(*outSlot);
+ mCore->clearBufferSlotLocked(*outSlot);
BQ_LOGE("dequeueBuffer: createGraphicBuffer failed");
return error;
}
if (mCore->mIsAbandoned) {
+ mCore->mFreeSlots.insert(*outSlot);
+ mCore->clearBufferSlotLocked(*outSlot);
BQ_LOGE("dequeueBuffer: BufferQueue has been abandoned");
return NO_INIT;
}
@@ -1439,4 +1443,11 @@
disconnect(api);
}
+status_t BufferQueueProducer::getUniqueId(uint64_t* outId) const {
+ BQ_LOGV("getUniqueId");
+
+ *outId = mCore->mUniqueId;
+ return NO_ERROR;
+}
+
} // namespace android
diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index 9317eff..c177922 100644
--- a/libs/gui/IGraphicBufferProducer.cpp
+++ b/libs/gui/IGraphicBufferProducer.cpp
@@ -55,7 +55,8 @@
SET_AUTO_REFRESH,
SET_DEQUEUE_TIMEOUT,
GET_LAST_QUEUED_BUFFER,
- GET_FRAME_TIMESTAMPS
+ GET_FRAME_TIMESTAMPS,
+ GET_UNIQUE_ID
};
class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer>
@@ -455,6 +456,25 @@
}
return found;
}
+
+ virtual status_t getUniqueId(uint64_t* outId) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
+ status_t result = remote()->transact(GET_UNIQUE_ID, data, &reply);
+ if (result != NO_ERROR) {
+ ALOGE("getUniqueId failed to transact: %d", result);
+ }
+ status_t actualResult = NO_ERROR;
+ result = reply.readInt32(&actualResult);
+ if (result != NO_ERROR) {
+ return result;
+ }
+ result = reply.readUint64(outId);
+ if (result != NO_ERROR) {
+ return result;
+ }
+ return actualResult;
+ }
};
// Out-of-line virtual method definition to trigger vtable emission in this
@@ -720,6 +740,20 @@
}
return NO_ERROR;
}
+ case GET_UNIQUE_ID: {
+ CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
+ uint64_t outId = 0;
+ status_t actualResult = getUniqueId(&outId);
+ status_t result = reply->writeInt32(actualResult);
+ if (result != NO_ERROR) {
+ return result;
+ }
+ result = reply->writeUint64(outId);
+ if (result != NO_ERROR) {
+ return result;
+ }
+ return NO_ERROR;
+ }
}
return BBinder::onTransact(code, data, reply, flags);
}
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4739ca4..af55913 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -292,8 +292,10 @@
int buf = -1;
sp<Fence> fence;
+ nsecs_t now = systemTime();
status_t result = mGraphicBufferProducer->dequeueBuffer(&buf, &fence,
reqWidth, reqHeight, reqFormat, reqUsage);
+ mLastDequeueDuration = systemTime() - now;
if (result < 0) {
ALOGV("dequeueBuffer: IGraphicBufferProducer::dequeueBuffer"
@@ -496,7 +498,9 @@
input.setSurfaceDamage(flippedRegion);
}
+ nsecs_t now = systemTime();
status_t err = mGraphicBufferProducer->queueBuffer(i, input, &output);
+ mLastQueueDuration = systemTime() - now;
if (err != OK) {
ALOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err);
}
@@ -575,6 +579,20 @@
}
return err;
}
+ case NATIVE_WINDOW_LAST_DEQUEUE_DURATION: {
+ int64_t durationUs = mLastDequeueDuration / 1000;
+ *value = durationUs > std::numeric_limits<int>::max() ?
+ std::numeric_limits<int>::max() :
+ static_cast<int>(durationUs);
+ return NO_ERROR;
+ }
+ case NATIVE_WINDOW_LAST_QUEUE_DURATION: {
+ int64_t durationUs = mLastQueueDuration / 1000;
+ *value = durationUs > std::numeric_limits<int>::max() ?
+ std::numeric_limits<int>::max() :
+ static_cast<int>(durationUs);
+ return NO_ERROR;
+ }
}
}
return mGraphicBufferProducer->query(what, value);
@@ -1329,6 +1347,11 @@
return mQueueBufferCondition.waitRelative(mMutex, timeout) == OK;
}
+status_t Surface::getUniqueId(uint64_t* outId) const {
+ Mutex::Autolock lock(mMutex);
+ return mGraphicBufferProducer->getUniqueId(outId);
+}
+
namespace view {
status_t Surface::writeToParcel(Parcel* parcel) const {
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index bc8dfbb..c0baa49 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -612,6 +612,11 @@
return INVALID_OPERATION;
}
+status_t VirtualDisplaySurface::getUniqueId(uint64_t* /*outId*/) const {
+ ALOGE("getUniqueId not supported on VirtualDisplaySurface");
+ return INVALID_OPERATION;
+}
+
void VirtualDisplaySurface::updateQueueBufferOutput(
const QueueBufferOutput& qbo) {
uint32_t w, h, transformHint, numPendingBuffers;
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index 29563b6..5b82355 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -128,6 +128,7 @@
virtual status_t setDequeueTimeout(nsecs_t timeout) override;
virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
sp<Fence>* outFence, float outTransformMatrix[16]) override;
+ virtual status_t getUniqueId(uint64_t* outId) const override;
//
// Utility methods
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 5145a3f..548b048 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1100,6 +1100,25 @@
}
}
+bool Layer::headFenceHasSignaled() const {
+#ifdef USE_HWC2
+ Mutex::Autolock lock(mQueueItemLock);
+ if (mQueueItems.empty()) {
+ return true;
+ }
+ if (mQueueItems[0].mIsDroppable) {
+ // Even though this buffer's fence may not have signaled yet, it could
+ // be replaced by another buffer before it has a chance to, which means
+ // that it's possible to get into a situation where a buffer is never
+ // able to be latched. To avoid this, grab this buffer anyway.
+ return true;
+ }
+ return mQueueItems[0].mFence->getSignalTime() != INT64_MAX;
+#else
+ return true;
+#endif
+}
+
bool Layer::addSyncPoint(const std::shared_ptr<SyncPoint>& point) {
if (point->getFrameNumber() <= mCurrentFrameNumber) {
// Don't bother with a SyncPoint, since we've already latched the
@@ -1357,9 +1376,10 @@
void Layer::notifyAvailableFrames() {
auto headFrameNumber = getHeadFrameNumber();
+ bool headFenceSignaled = headFenceHasSignaled();
Mutex::Autolock lock(mLocalSyncPointMutex);
for (auto& point : mLocalSyncPoints) {
- if (headFrameNumber >= point->getFrameNumber()) {
+ if (headFrameNumber >= point->getFrameNumber() && headFenceSignaled) {
point->setFrameAvailable();
}
}
@@ -1756,6 +1776,13 @@
return outDirtyRegion;
}
+ // If the head buffer's acquire fence hasn't signaled yet, return and
+ // try again later
+ if (!headFenceHasSignaled()) {
+ mFlinger->signalLayerUpdate();
+ return outDirtyRegion;
+ }
+
// Capture the old state of the layer for comparisons later
const State& s(getDrawingState());
const bool oldOpacity = isOpaque(s);
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index a51c804..78a8427 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -510,6 +510,7 @@
std::list<std::shared_ptr<SyncPoint>> mRemoteSyncPoints;
uint64_t getHeadFrameNumber() const;
+ bool headFenceHasSignaled() const;
// Returns false if the relevant frame has already been latched
bool addSyncPoint(const std::shared_ptr<SyncPoint>& point);
diff --git a/services/surfaceflinger/MessageQueue.cpp b/services/surfaceflinger/MessageQueue.cpp
index 34dc24b..974c7a3 100644
--- a/services/surfaceflinger/MessageQueue.cpp
+++ b/services/surfaceflinger/MessageQueue.cpp
@@ -134,31 +134,12 @@
}
-/* when INVALIDATE_ON_VSYNC is set SF only processes
- * buffer updates on VSYNC and performs a refresh immediately
- * after.
- *
- * when INVALIDATE_ON_VSYNC is set to false, SF will instead
- * perform the buffer updates immediately, but the refresh only
- * at the next VSYNC.
- * THIS MODE IS BUGGY ON GALAXY NEXUS AND WILL CAUSE HANGS
- */
-#define INVALIDATE_ON_VSYNC 1
-
void MessageQueue::invalidate() {
-#if INVALIDATE_ON_VSYNC
mEvents->requestNextVsync();
-#else
- mHandler->dispatchInvalidate();
-#endif
}
void MessageQueue::refresh() {
-#if INVALIDATE_ON_VSYNC
mHandler->dispatchRefresh();
-#else
- mEvents->requestNextVsync();
-#endif
}
int MessageQueue::cb_eventReceiver(int fd, int events, void* data) {
@@ -172,11 +153,7 @@
while ((n = DisplayEventReceiver::getEvents(mEventTube, buffer, 8)) > 0) {
for (int i=0 ; i<n ; i++) {
if (buffer[i].header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
-#if INVALIDATE_ON_VSYNC
mHandler->dispatchInvalidate();
-#else
- mHandler->dispatchRefresh();
-#endif
break;
}
}
diff --git a/services/surfaceflinger/MonitoredProducer.cpp b/services/surfaceflinger/MonitoredProducer.cpp
index faab62c..fd33d5c 100644
--- a/services/surfaceflinger/MonitoredProducer.cpp
+++ b/services/surfaceflinger/MonitoredProducer.cpp
@@ -149,6 +149,10 @@
outTransformMatrix);
}
+status_t MonitoredProducer::getUniqueId(uint64_t* outId) const {
+ return mProducer->getUniqueId(outId);
+}
+
IBinder* MonitoredProducer::onAsBinder() {
return IInterface::asBinder(mProducer).get();
}
diff --git a/services/surfaceflinger/MonitoredProducer.h b/services/surfaceflinger/MonitoredProducer.h
index ce756dc..71b6b59 100644
--- a/services/surfaceflinger/MonitoredProducer.h
+++ b/services/surfaceflinger/MonitoredProducer.h
@@ -64,6 +64,7 @@
virtual IBinder* onAsBinder();
virtual status_t setSharedBufferMode(bool sharedBufferMode) override;
virtual status_t setAutoRefresh(bool autoRefresh) override;
+ virtual status_t getUniqueId(uint64_t* outId) const override;
private:
sp<IGraphicBufferProducer> mProducer;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9a2747d..37b3757 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -167,9 +167,6 @@
property_get("ro.bq.gpu_to_cpu_unsupported", value, "0");
mGpuToCpuSupported = !atoi(value);
- property_get("debug.sf.drop_missed_frames", value, "0");
- mDropMissedFrames = atoi(value);
-
property_get("debug.sf.showupdates", value, "0");
mDebugRegion = atoi(value);
@@ -465,6 +462,18 @@
mSFEventThread = new EventThread(sfVsyncSrc, *this);
mEventQueue.setEventThread(mSFEventThread);
+ // set EventThread and SFEventThread to SCHED_FIFO for minimum jitter
+ struct sched_param param = {0};
+ param.sched_priority = 1;
+ if (sched_setscheduler(mEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for EventThread");
+ }
+
+ if (sched_setscheduler(mSFEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for SFEventThread");
+ }
+
+
// Get a RenderEngine for the given display / config (can't fail)
mRenderEngine = RenderEngine::create(mEGLDisplay,
HAL_PIXEL_FORMAT_RGBA_8888);
@@ -933,6 +942,14 @@
bool SurfaceFlinger::handleMessageInvalidate() {
ATRACE_CALL();
+ bool frameMissed = !mHadClientComposition &&
+ mPreviousPresentFence != Fence::NO_FENCE &&
+ mPreviousPresentFence->getSignalTime() == INT64_MAX;
+ ATRACE_INT("FrameMissed", static_cast<int>(frameMissed));
+ if (frameMissed) {
+ signalLayerUpdate();
+ return false;
+ }
return handlePageFlip();
}
@@ -940,36 +957,22 @@
ATRACE_CALL();
nsecs_t refreshStartTime = systemTime(SYSTEM_TIME_MONOTONIC);
- static nsecs_t previousExpectedPresent = 0;
- nsecs_t expectedPresent = mPrimaryDispSync.computeNextRefresh(0);
- static bool previousFrameMissed = false;
- bool frameMissed = (expectedPresent == previousExpectedPresent);
- if (frameMissed != previousFrameMissed) {
- ATRACE_INT("FrameMissed", static_cast<int>(frameMissed));
- }
- previousFrameMissed = frameMissed;
- if (CC_UNLIKELY(mDropMissedFrames && frameMissed)) {
- // Latch buffers, but don't send anything to HWC, then signal another
- // wakeup for the next vsync
- preComposition();
- repaintEverything();
- } else {
- preComposition();
- rebuildLayerStacks();
- setUpHWComposer();
- doDebugFlashRegions();
- doComposition();
- postComposition(refreshStartTime);
- }
+ preComposition();
+ rebuildLayerStacks();
+ setUpHWComposer();
+ doDebugFlashRegions();
+ doComposition();
+ postComposition(refreshStartTime);
+
+ mPreviousPresentFence = mHwc->getRetireFence(HWC_DISPLAY_PRIMARY);
+ mHadClientComposition = mHwc->hasClientComposition(HWC_DISPLAY_PRIMARY);
// Release any buffers which were replaced this frame
for (auto& layer : mLayersWithQueuedFrames) {
layer->releasePendingBuffer();
}
mLayersWithQueuedFrames.clear();
-
- previousExpectedPresent = mPrimaryDispSync.computeNextRefresh(0);
}
void SurfaceFlinger::doDebugFlashRegions()
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 28666e2..0df39a4 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -468,7 +468,6 @@
RenderEngine* mRenderEngine;
nsecs_t mBootTime;
bool mGpuToCpuSupported;
- bool mDropMissedFrames;
sp<EventThread> mEventThread;
sp<EventThread> mSFEventThread;
sp<EventControlThread> mEventControlThread;
@@ -488,6 +487,8 @@
bool mAnimCompositionPending;
#ifdef USE_HWC2
std::vector<sp<Layer>> mLayersWithQueuedFrames;
+ sp<Fence> mPreviousPresentFence = Fence::NO_FENCE;
+ bool mHadClientComposition = false;
#endif
// this may only be written from the main thread with mStateLock held
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 83f7b08..69fb8c5 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -166,9 +166,6 @@
property_get("ro.bq.gpu_to_cpu_unsupported", value, "0");
mGpuToCpuSupported = !atoi(value);
- property_get("debug.sf.drop_missed_frames", value, "0");
- mDropMissedFrames = atoi(value);
-
property_get("debug.sf.showupdates", value, "0");
mDebugRegion = atoi(value);
@@ -462,6 +459,18 @@
mSFEventThread = new EventThread(sfVsyncSrc, *this);
mEventQueue.setEventThread(mSFEventThread);
+ // set EventThread and SFEventThread to SCHED_FIFO for minimum jitter
+ struct sched_param param = {0};
+ param.sched_priority = 1;
+ if (sched_setscheduler(mEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for EventThread");
+ }
+
+ if (sched_setscheduler(mSFEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for SFEventThread");
+ }
+
+
// Initialize the H/W composer object. There may or may not be an
// actual hardware composer underneath.
mHwc = new HWComposer(this,
@@ -944,30 +953,13 @@
ATRACE_CALL();
nsecs_t refreshStartTime = systemTime(SYSTEM_TIME_MONOTONIC);
- static nsecs_t previousExpectedPresent = 0;
- nsecs_t expectedPresent = mPrimaryDispSync.computeNextRefresh(0);
- static bool previousFrameMissed = false;
- bool frameMissed = (expectedPresent == previousExpectedPresent);
- if (frameMissed != previousFrameMissed) {
- ATRACE_INT("FrameMissed", static_cast<int>(frameMissed));
- }
- previousFrameMissed = frameMissed;
- if (CC_UNLIKELY(mDropMissedFrames && frameMissed)) {
- // Latch buffers, but don't send anything to HWC, then signal another
- // wakeup for the next vsync
- preComposition();
- repaintEverything();
- } else {
- preComposition();
- rebuildLayerStacks();
- setUpHWComposer();
- doDebugFlashRegions();
- doComposition();
- postComposition(refreshStartTime);
- }
-
- previousExpectedPresent = mPrimaryDispSync.computeNextRefresh(0);
+ preComposition();
+ rebuildLayerStacks();
+ setUpHWComposer();
+ doDebugFlashRegions();
+ doComposition();
+ postComposition(refreshStartTime);
}
void SurfaceFlinger::doDebugFlashRegions()
diff --git a/services/surfaceflinger/main_surfaceflinger.cpp b/services/surfaceflinger/main_surfaceflinger.cpp
index 97a1e8b..543d0c7 100644
--- a/services/surfaceflinger/main_surfaceflinger.cpp
+++ b/services/surfaceflinger/main_surfaceflinger.cpp
@@ -16,6 +16,8 @@
#include <sys/resource.h>
+#include <sched.h>
+
#include <cutils/sched_policy.h>
#include <binder/IServiceManager.h>
#include <binder/IPCThreadState.h>
@@ -61,6 +63,12 @@
sp<GpuService> gpuservice = new GpuService();
sm->addService(String16(GpuService::SERVICE_NAME), gpuservice, false);
+ struct sched_param param = {0};
+ param.sched_priority = 1;
+ if (sched_setscheduler(0, SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO");
+ }
+
// run surface flinger in this thread
flinger->run();