Merge "Minor changes on dumpstate refactoring:"
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index f3b12b1..d486a3d 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -1,6 +1,6 @@
 ## Permissions to allow system-wide tracing to the kernel trace buffer.
 ##
-on boot
+on fs
 
 # Allow writing to the kernel trace log.
     chmod 0222 /sys/kernel/debug/tracing/trace_marker
diff --git a/include/ui/Fence.h b/include/ui/Fence.h
index d45ad76..2fbc9ef 100644
--- a/include/ui/Fence.h
+++ b/include/ui/Fence.h
@@ -96,6 +96,17 @@
     // occurs then -1 is returned.
     nsecs_t getSignalTime() const;
 
+    // hasSignaled returns whether the fence has signaled yet. Prefer this to
+    // getSignalTime() or wait() if all you care about is whether the fence has
+    // signaled.
+    inline bool hasSignaled() {
+        // The sync_wait call underlying wait() has been measured to be
+        // significantly faster than the sync_fence_info call underlying
+        // getSignalTime(), which might otherwise appear to be the more obvious
+        // way to check whether a fence has signaled.
+        return wait(0) == NO_ERROR;
+    }
+
     // Flattenable interface
     size_t getFlattenedSize() const;
     size_t getFdCount() const;
diff --git a/include/ui/GrallocAllocator.h b/include/ui/GrallocAllocator.h
new file mode 100644
index 0000000..23b78ed
--- /dev/null
+++ b/include/ui/GrallocAllocator.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2016 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 ANDROID_UI_GRALLOC_ALLOCATOR_H
+#define ANDROID_UI_GRALLOC_ALLOCATOR_H
+
+#include <string>
+
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+namespace Gralloc2 {
+
+using hardware::graphics::allocator::V2_0::Error;
+using hardware::graphics::allocator::V2_0::PixelFormat;
+using hardware::graphics::allocator::V2_0::ProducerUsage;
+using hardware::graphics::allocator::V2_0::ConsumerUsage;
+using hardware::graphics::allocator::V2_0::BufferDescriptor;
+using hardware::graphics::allocator::V2_0::Buffer;
+using hardware::graphics::allocator::V2_0::IAllocator;
+
+// Allocator is a wrapper to IAllocator, a proxy to server-side allocator.
+class Allocator {
+public:
+    Allocator();
+
+    // this will be removed and Allocator will be always valid
+    bool valid() const { return (mService != nullptr); }
+
+    std::string dumpDebugInfo() const;
+
+    Error createBufferDescriptor(
+            const IAllocator::BufferDescriptorInfo& descriptorInfo,
+            BufferDescriptor& descriptor) const;
+    void destroyBufferDescriptor(BufferDescriptor descriptor) const;
+
+    Error allocate(BufferDescriptor descriptor, Buffer& buffer) const;
+    void free(Buffer buffer) const;
+
+    Error exportHandle(BufferDescriptor descriptor, Buffer buffer,
+            native_handle_t*& bufferHandle) const;
+
+private:
+    sp<IAllocator> mService;
+};
+
+} // namespace Gralloc2
+
+} // namespace android
+
+#endif // ANDROID_UI_GRALLOC_ALLOCATOR_H
diff --git a/include/ui/GrallocMapper.h b/include/ui/GrallocMapper.h
new file mode 100644
index 0000000..5517449
--- /dev/null
+++ b/include/ui/GrallocMapper.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2016 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 ANDROID_UI_GRALLOC_MAPPER_H
+#define ANDROID_UI_GRALLOC_MAPPER_H
+
+#include <memory>
+
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <system/window.h>
+
+namespace android {
+
+namespace Gralloc2 {
+
+using hardware::graphics::allocator::V2_0::Error;
+using hardware::graphics::allocator::V2_0::PixelFormat;
+using hardware::graphics::allocator::V2_0::ProducerUsage;
+using hardware::graphics::allocator::V2_0::ConsumerUsage;
+using hardware::graphics::mapper::V2_0::FlexLayout;
+using hardware::graphics::mapper::V2_0::BackingStore;
+using hardware::graphics::mapper::V2_0::Device;
+using hardware::graphics::mapper::V2_0::IMapper;
+
+// Mapper is a wrapper to IMapper, a client-side graphics buffer mapper.
+class Mapper {
+public:
+    Mapper();
+    ~Mapper();
+
+    // this will be removed and Mapper will be always valid
+    bool valid() const { return (mMapper != nullptr); }
+
+    Error retain(buffer_handle_t handle) const
+    {
+        return mMapper->retain(mDevice, handle);
+    }
+
+    void release(buffer_handle_t handle) const;
+
+    Error getDimensions(buffer_handle_t handle,
+            uint32_t& width, uint32_t& height) const
+    {
+        return mMapper->getDimensions(mDevice, handle, &width, &height);
+    }
+
+    Error getFormat(buffer_handle_t handle,
+            PixelFormat& format) const
+    {
+        return mMapper->getFormat(mDevice, handle, &format);
+    }
+
+    Error getProducerUsageMask(buffer_handle_t handle,
+            uint64_t& usageMask) const
+    {
+        return mMapper->getProducerUsageMask(mDevice, handle, &usageMask);
+    }
+
+    Error getConsumerUsageMask(buffer_handle_t handle,
+            uint64_t& usageMask) const
+    {
+        return mMapper->getConsumerUsageMask(mDevice, handle, &usageMask);
+    }
+
+    Error getBackingStore(buffer_handle_t handle,
+            BackingStore& store) const
+    {
+        return mMapper->getBackingStore(mDevice, handle, &store);
+    }
+
+    Error getStride(buffer_handle_t handle, uint32_t& stride) const
+    {
+        return mMapper->getStride(mDevice, handle, &stride);
+    }
+
+    Error getNumFlexPlanes(buffer_handle_t handle, uint32_t& numPlanes) const
+    {
+        return mMapper->getNumFlexPlanes(mDevice, handle, &numPlanes);
+    }
+
+    Error lock(buffer_handle_t handle,
+            uint64_t producerUsageMask,
+            uint64_t consumerUsageMask,
+            const Device::Rect& accessRegion,
+            int acquireFence, void*& data) const
+    {
+        return mMapper->lock(mDevice, handle,
+                producerUsageMask, consumerUsageMask,
+                &accessRegion, acquireFence, &data);
+    }
+
+    Error lock(buffer_handle_t handle,
+            uint64_t producerUsageMask,
+            uint64_t consumerUsageMask,
+            const Device::Rect& accessRegion,
+            int acquireFence, FlexLayout& flexLayout) const
+    {
+        return mMapper->lockFlex(mDevice, handle,
+                producerUsageMask, consumerUsageMask,
+                &accessRegion, acquireFence, &flexLayout);
+    }
+
+    int unlock(buffer_handle_t handle) const;
+
+private:
+    const IMapper* mMapper;
+    Device* mDevice;
+};
+
+} // namespace Gralloc2
+
+} // namespace android
+
+#endif // ANDROID_UI_GRALLOC_MAPPER_H
diff --git a/include/ui/GraphicBufferAllocator.h b/include/ui/GraphicBufferAllocator.h
index 28d0238..9cc5806 100644
--- a/include/ui/GraphicBufferAllocator.h
+++ b/include/ui/GraphicBufferAllocator.h
@@ -32,7 +32,12 @@
 
 namespace android {
 
+namespace Gralloc2 {
+class Allocator;
+}
+
 class Gralloc1Loader;
+class GraphicBufferMapper;
 class String8;
 
 class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator>
@@ -86,6 +91,9 @@
     GraphicBufferAllocator();
     ~GraphicBufferAllocator();
 
+    const std::unique_ptr<const Gralloc2::Allocator> mAllocator;
+    GraphicBufferMapper& mMapper;
+
     std::unique_ptr<Gralloc1::Loader> mLoader;
     std::unique_ptr<Gralloc1::Device> mDevice;
 };
diff --git a/include/ui/GraphicBufferMapper.h b/include/ui/GraphicBufferMapper.h
index a25809c..b6de1b2 100644
--- a/include/ui/GraphicBufferMapper.h
+++ b/include/ui/GraphicBufferMapper.h
@@ -28,6 +28,10 @@
 
 // ---------------------------------------------------------------------------
 
+namespace Gralloc2 {
+class Mapper;
+}
+
 class Rect;
 
 class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
@@ -57,11 +61,18 @@
 
     status_t unlockAsync(buffer_handle_t handle, int *fenceFd);
 
+    const Gralloc2::Mapper& getGrallocMapper() const
+    {
+        return *mMapper;
+    }
+
 private:
     friend class Singleton<GraphicBufferMapper>;
 
     GraphicBufferMapper();
 
+    const std::unique_ptr<const Gralloc2::Mapper> mMapper;
+
     std::unique_ptr<Gralloc1::Loader> mLoader;
     std::unique_ptr<Gralloc1::Device> mDevice;
 };
diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
index 71b5cca..8371e9b 100644
--- a/libs/gui/Android.mk
+++ b/libs/gui/Android.mk
@@ -16,7 +16,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_CLANG := true
-LOCAL_CPPFLAGS := -std=c++1y -Weverything -Werror
+LOCAL_CPPFLAGS := -Weverything -Werror
 
 # The static constructors and destructors in this library have not been noted to
 # introduce significant overheads
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 0777468..37b2873 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -17,7 +17,6 @@
 
     clang: true,
     cppflags: [
-        "-std=c++1y",
         "-Weverything",
         "-Werror",
 
@@ -46,6 +45,8 @@
         "FrameStats.cpp",
         "Gralloc1.cpp",
         "Gralloc1On0Adapter.cpp",
+        "GrallocAllocator.cpp",
+        "GrallocMapper.cpp",
         "GraphicBuffer.cpp",
         "GraphicBufferAllocator.cpp",
         "GraphicBufferMapper.cpp",
@@ -56,10 +57,17 @@
         "UiConfig.cpp",
     ],
 
+    static_libs: [
+        "android.hardware.graphics.mapper@2.0",
+    ],
+
     shared_libs: [
+        "android.hardware.graphics.allocator@2.0",
         "libbinder",
         "libcutils",
         "libhardware",
+        "libhidl",
+        "libhwbinder",
         "libsync",
         "libutils",
         "liblog",
diff --git a/libs/ui/GrallocAllocator.cpp b/libs/ui/GrallocAllocator.cpp
new file mode 100644
index 0000000..2eb1988
--- /dev/null
+++ b/libs/ui/GrallocAllocator.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2016 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.
+ */
+
+#define LOG_TAG "GrallocAllocator"
+
+#include <log/log.h>
+#include <ui/GrallocAllocator.h>
+
+namespace android {
+
+namespace Gralloc2 {
+
+// assume NO_RESOURCES when Status::isOk returns false
+constexpr Error kDefaultError = Error::NO_RESOURCES;
+
+Allocator::Allocator()
+{
+    mService = IAllocator::getService("gralloc");
+}
+
+std::string Allocator::dumpDebugInfo() const
+{
+    std::string info;
+
+    mService->dumpDebugInfo([&](const auto& tmpInfo) {
+        info = tmpInfo.c_str();
+    });
+
+    return info;
+}
+
+Error Allocator::createBufferDescriptor(
+        const IAllocator::BufferDescriptorInfo& descriptorInfo,
+        BufferDescriptor& descriptor) const
+{
+    Error error = kDefaultError;
+    mService->createDescriptor(descriptorInfo,
+            [&](const auto& tmpError, const auto& tmpDescriptor) {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                descriptor = tmpDescriptor;
+            });
+
+    return error;
+}
+
+void Allocator::destroyBufferDescriptor(BufferDescriptor descriptor) const
+{
+    mService->destroyDescriptor(descriptor);
+}
+
+Error Allocator::allocate(BufferDescriptor descriptor, Buffer& buffer) const
+{
+    hardware::hidl_vec<BufferDescriptor> descriptors;
+    descriptors.setToExternal(&descriptor, 1);
+
+    Error error = kDefaultError;
+    auto status = mService->allocate(descriptors,
+            [&](const auto& tmpError, const auto& tmpBuffers) {
+                error = tmpError;
+                if (tmpError != Error::NONE) {
+                    return;
+                }
+
+                buffer = tmpBuffers[0];
+            });
+
+    return error;
+}
+
+void Allocator::free(Buffer buffer) const
+{
+    mService->free(buffer);
+}
+
+Error Allocator::exportHandle(BufferDescriptor descriptor, Buffer buffer,
+        native_handle_t*& bufferHandle) const
+{
+    Error error = kDefaultError;
+    auto status = mService->exportHandle(descriptor, buffer,
+            [&](const auto& tmpError, const auto& tmpBufferHandle) {
+                error = tmpError;
+                if (tmpError != Error::NONE) {
+                    return;
+                }
+
+                bufferHandle = native_handle_clone(tmpBufferHandle);
+                if (!bufferHandle) {
+                    error = Error::NO_RESOURCES;
+                }
+            });
+
+    return error;
+}
+
+} // namespace Gralloc2
+
+} // namespace android
diff --git a/libs/ui/GrallocMapper.cpp b/libs/ui/GrallocMapper.cpp
new file mode 100644
index 0000000..d568b68
--- /dev/null
+++ b/libs/ui/GrallocMapper.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2016 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.
+ */
+
+#define LOG_TAG "GrallocMapper"
+
+#include <array>
+#include <string>
+
+#include <log/log.h>
+#include <ui/GrallocMapper.h>
+
+namespace android {
+
+namespace Gralloc2 {
+
+typedef const void*(*FetchInterface)(const char* name);
+
+static FetchInterface loadHalLib(const char* pkg_name)
+{
+    static const std::array<const char*, 3> sSearchDirs = {{
+        HAL_LIBRARY_PATH_ODM,
+        HAL_LIBRARY_PATH_VENDOR,
+        HAL_LIBRARY_PATH_SYSTEM,
+    }};
+    static const char sSymbolName[] = "HALLIB_FETCH_Interface";
+
+    void* handle = nullptr;
+    std::string path;
+    for (auto dir : sSearchDirs) {
+        path = dir;
+        path += pkg_name;
+        path += ".hallib.so";
+        handle = dlopen(path.c_str(), RTLD_LOCAL | RTLD_NOW);
+        if (handle) {
+            break;
+        }
+    }
+    if (!handle) {
+        return nullptr;
+    }
+
+    void* symbol = dlsym(handle, sSymbolName);
+    if (!symbol) {
+        ALOGE("%s is missing from %s", sSymbolName, path.c_str());
+        dlclose(handle);
+        return nullptr;
+    }
+
+    return reinterpret_cast<FetchInterface>(symbol);
+}
+
+Mapper::Mapper()
+    : mMapper(nullptr), mDevice(nullptr)
+{
+    static const char sHalLibName[] = "android.hardware.graphics.mapper";
+    static const char sSupportedInterface[] =
+        "android.hardware.graphics.mapper@2.0::IMapper";
+
+    FetchInterface fetchInterface = loadHalLib(sHalLibName);
+    if (!fetchInterface) {
+        return;
+    }
+
+    mMapper = static_cast<const IMapper*>(
+            fetchInterface(sSupportedInterface));
+    if (!mMapper) {
+        ALOGE("%s is not supported", sSupportedInterface);
+        return;
+    }
+
+    if (mMapper->createDevice(&mDevice) != Error::NONE) {
+        ALOGE("failed to create mapper device");
+        mMapper = nullptr;
+    }
+}
+
+Mapper::~Mapper()
+{
+    if (mMapper) {
+        mMapper->destroyDevice(mDevice);
+    }
+}
+
+void Mapper::release(buffer_handle_t handle) const
+{
+    auto error = mMapper->release(mDevice, handle);
+    ALOGE_IF(error != Error::NONE,
+            "release(%p) failed with %d", handle, error);
+}
+
+int Mapper::unlock(buffer_handle_t handle) const
+{
+    int releaseFence;
+    auto error = mMapper->unlock(mDevice, handle, &releaseFence);
+    if (error != Error::NONE) {
+        ALOGE("unlock(%p) failed with %d", handle, error);
+        releaseFence = -1;
+    }
+
+    return releaseFence;
+}
+
+} // namespace Gralloc2
+
+} // namespace android
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 97b948d..6d72900 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -23,6 +23,7 @@
 #include <utils/Errors.h>
 #include <utils/Log.h>
 
+#include <ui/GrallocMapper.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/GraphicBufferAllocator.h>
 #include <ui/GraphicBufferMapper.h>
@@ -108,8 +109,10 @@
 {
     if (mOwner == ownHandle) {
         mBufferMapper.unregisterBuffer(handle);
-        native_handle_close(handle);
-        native_handle_delete(const_cast<native_handle*>(handle));
+        if (!mBufferMapper.getGrallocMapper().valid()) {
+            native_handle_close(handle);
+            native_handle_delete(const_cast<native_handle*>(handle));
+        }
     } else if (mOwner == ownData) {
         GraphicBufferAllocator& allocator(GraphicBufferAllocator::get());
         allocator.free(handle);
diff --git a/libs/ui/GraphicBufferAllocator.cpp b/libs/ui/GraphicBufferAllocator.cpp
index edfff4d..693c7cb 100644
--- a/libs/ui/GraphicBufferAllocator.cpp
+++ b/libs/ui/GraphicBufferAllocator.cpp
@@ -26,6 +26,9 @@
 
 #include <ui/GraphicBufferAllocator.h>
 #include <ui/Gralloc1On0Adapter.h>
+#include <ui/GrallocAllocator.h>
+#include <ui/GrallocMapper.h>
+#include <ui/GraphicBufferMapper.h>
 
 namespace android {
 // ---------------------------------------------------------------------------
@@ -37,8 +40,14 @@
     GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList;
 
 GraphicBufferAllocator::GraphicBufferAllocator()
-  : mLoader(std::make_unique<Gralloc1::Loader>()),
-    mDevice(mLoader->getDevice()) {}
+  : mAllocator(std::make_unique<Gralloc2::Allocator>()),
+    mMapper(GraphicBufferMapper::getInstance())
+{
+    if (!mAllocator->valid()) {
+        mLoader = std::make_unique<Gralloc1::Loader>();
+        mDevice = mLoader->getDevice();
+    }
+}
 
 GraphicBufferAllocator::~GraphicBufferAllocator() {}
 
@@ -70,7 +79,14 @@
     }
     snprintf(buffer, SIZE, "Total allocated (estimate): %.2f KB\n", total/1024.0f);
     result.append(buffer);
-    std::string deviceDump = mDevice->dump();
+
+    std::string deviceDump;
+    if (mAllocator->valid()) {
+        deviceDump = mAllocator->dumpDebugInfo();
+    } else {
+        deviceDump = mDevice->dump();
+    }
+
     result.append(deviceDump.c_str(), deviceDump.size());
 }
 
@@ -81,6 +97,103 @@
     ALOGD("%s", s.string());
 }
 
+namespace {
+
+class HalBuffer {
+public:
+    HalBuffer(const Gralloc2::Allocator* allocator,
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t usage)
+        : mAllocator(allocator), mBufferValid(false)
+    {
+        Gralloc2::IAllocator::BufferDescriptorInfo info = {};
+        info.width = width;
+        info.height = height;
+        info.format = static_cast<Gralloc2::PixelFormat>(format);
+        info.producerUsageMask = usage;
+        info.consumerUsageMask = usage;
+
+        Gralloc2::BufferDescriptor descriptor;
+        auto error = mAllocator->createBufferDescriptor(info, descriptor);
+        if (error != Gralloc2::Error::NONE) {
+            ALOGE("Failed to create desc (%u x %u) format %d usage %u: %d",
+                    width, height, format, usage, error);
+            return;
+        }
+
+        error = mAllocator->allocate(descriptor, mBuffer);
+        if (error == Gralloc2::Error::NOT_SHARED) {
+            error = Gralloc2::Error::NONE;
+        }
+
+        if (error != Gralloc2::Error::NONE) {
+            ALOGE("Failed to allocate (%u x %u) format %d usage %u: %d",
+                    width, height, format, usage, error);
+            mAllocator->destroyBufferDescriptor(descriptor);
+            return;
+        }
+
+        error = mAllocator->exportHandle(descriptor, mBuffer, mHandle);
+        if (error != Gralloc2::Error::NONE) {
+            ALOGE("Failed to export handle");
+            mAllocator->free(mBuffer);
+            mAllocator->destroyBufferDescriptor(descriptor);
+            return;
+        }
+
+        mAllocator->destroyBufferDescriptor(descriptor);
+
+        mBufferValid = true;
+    }
+
+    ~HalBuffer()
+    {
+        if (mBufferValid) {
+            if (mHandle) {
+                native_handle_close(mHandle);
+                native_handle_delete(mHandle);
+            }
+
+            mAllocator->free(mBuffer);
+        }
+    }
+
+    bool exportHandle(GraphicBufferMapper& mapper,
+            buffer_handle_t* handle, uint32_t* stride)
+    {
+        if (!mBufferValid) {
+            return false;
+        }
+
+        if (mapper.registerBuffer(mHandle)) {
+            return false;
+        }
+
+        *handle = mHandle;
+
+        auto error = mapper.getGrallocMapper().getStride(mHandle, *stride);
+        if (error != Gralloc2::Error::NONE) {
+            ALOGW("Failed to get stride from buffer: %d", error);
+            *stride = 0;
+        }
+
+        mHandle = nullptr;
+        mAllocator->free(mBuffer);
+        mBufferValid = false;
+
+        return true;
+    }
+
+private:
+    const Gralloc2::Allocator* mAllocator;
+
+    bool mBufferValid;
+    Gralloc2::Buffer mBuffer;
+    native_handle_t* mHandle;
+};
+
+} // namespace
+
 status_t GraphicBufferAllocator::allocate(uint32_t width, uint32_t height,
         PixelFormat format, uint32_t usage, buffer_handle_t* handle,
         uint32_t* stride, uint64_t graphicBufferId, std::string requestorName)
@@ -95,40 +208,51 @@
     // Filter out any usage bits that should not be passed to the gralloc module
     usage &= GRALLOC_USAGE_ALLOC_MASK;
 
-    auto descriptor = mDevice->createDescriptor();
-    auto error = descriptor->setDimensions(width, height);
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("Failed to set dimensions to (%u, %u): %d", width, height, error);
-        return BAD_VALUE;
-    }
-    error = descriptor->setFormat(static_cast<android_pixel_format_t>(format));
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("Failed to set format to %d: %d", format, error);
-        return BAD_VALUE;
-    }
-    error = descriptor->setProducerUsage(
-            static_cast<gralloc1_producer_usage_t>(usage));
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("Failed to set producer usage to %u: %d", usage, error);
-        return BAD_VALUE;
-    }
-    error = descriptor->setConsumerUsage(
-            static_cast<gralloc1_consumer_usage_t>(usage));
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("Failed to set consumer usage to %u: %d", usage, error);
-        return BAD_VALUE;
-    }
+    gralloc1_error_t error;
+    if (mAllocator->valid()) {
+        HalBuffer buffer(mAllocator.get(), width, height, format, usage);
+        if (!buffer.exportHandle(mMapper, handle, stride)) {
+            return NO_MEMORY;
+        }
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        auto descriptor = mDevice->createDescriptor();
+        error = descriptor->setDimensions(width, height);
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("Failed to set dimensions to (%u, %u): %d",
+                    width, height, error);
+            return BAD_VALUE;
+        }
+        error = descriptor->setFormat(
+                static_cast<android_pixel_format_t>(format));
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("Failed to set format to %d: %d", format, error);
+            return BAD_VALUE;
+        }
+        error = descriptor->setProducerUsage(
+                static_cast<gralloc1_producer_usage_t>(usage));
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("Failed to set producer usage to %u: %d", usage, error);
+            return BAD_VALUE;
+        }
+        error = descriptor->setConsumerUsage(
+                static_cast<gralloc1_consumer_usage_t>(usage));
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("Failed to set consumer usage to %u: %d", usage, error);
+            return BAD_VALUE;
+        }
 
-    error = mDevice->allocate(descriptor, graphicBufferId, handle);
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("Failed to allocate (%u x %u) format %d usage %u: %d",
-                width, height, format, usage, error);
-        return NO_MEMORY;
-    }
+        error = mDevice->allocate(descriptor, graphicBufferId, handle);
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("Failed to allocate (%u x %u) format %d usage %u: %d",
+                    width, height, format, usage, error);
+            return NO_MEMORY;
+        }
 
-    error = mDevice->getStride(*handle, stride);
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGW("Failed to get stride from buffer: %d", error);
+        error = mDevice->getStride(*handle, stride);
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGW("Failed to get stride from buffer: %d", error);
+        }
     }
 
     if (error == NO_ERROR) {
@@ -153,7 +277,14 @@
 {
     ATRACE_CALL();
 
-    auto error = mDevice->release(handle);
+    gralloc1_error_t error;
+    if (mAllocator->valid()) {
+        error = static_cast<gralloc1_error_t>(
+                mMapper.unregisterBuffer(handle));
+    } else {
+        error = mDevice->release(handle);
+    }
+
     if (error != GRALLOC1_ERROR_NONE) {
         ALOGE("Failed to free buffer: %d", error);
     }
diff --git a/libs/ui/GraphicBufferMapper.cpp b/libs/ui/GraphicBufferMapper.cpp
index 481d43c..fb55bf1 100644
--- a/libs/ui/GraphicBufferMapper.cpp
+++ b/libs/ui/GraphicBufferMapper.cpp
@@ -33,6 +33,7 @@
 #include <utils/Trace.h>
 
 #include <ui/Gralloc1On0Adapter.h>
+#include <ui/GrallocMapper.h>
 #include <ui/GraphicBufferMapper.h>
 #include <ui/Rect.h>
 
@@ -44,8 +45,13 @@
 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper )
 
 GraphicBufferMapper::GraphicBufferMapper()
-  : mLoader(std::make_unique<Gralloc1::Loader>()),
-    mDevice(mLoader->getDevice()) {}
+  : mMapper(std::make_unique<const Gralloc2::Mapper>())
+{
+    if (!mMapper->valid()) {
+        mLoader = std::make_unique<Gralloc1::Loader>();
+        mDevice = mLoader->getDevice();
+    }
+}
 
 
 
@@ -53,7 +59,13 @@
 {
     ATRACE_CALL();
 
-    gralloc1_error_t error = mDevice->retain(handle);
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        error = static_cast<gralloc1_error_t>(mMapper->retain(handle));
+    } else {
+        error = mDevice->retain(handle);
+    }
+
     ALOGW_IF(error != GRALLOC1_ERROR_NONE, "registerBuffer(%p) failed: %d",
             handle, error);
 
@@ -64,7 +76,14 @@
 {
     ATRACE_CALL();
 
-    gralloc1_error_t error = mDevice->retain(buffer);
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        error = static_cast<gralloc1_error_t>(
+                mMapper->retain(buffer->getNativeBuffer()->handle));
+    } else {
+        error = mDevice->retain(buffer);
+    }
+
     ALOGW_IF(error != GRALLOC1_ERROR_NONE, "registerBuffer(%p) failed: %d",
             buffer->getNativeBuffer()->handle, error);
 
@@ -75,7 +94,14 @@
 {
     ATRACE_CALL();
 
-    gralloc1_error_t error = mDevice->release(handle);
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->release(handle);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->release(handle);
+    }
+
     ALOGW_IF(error != GRALLOC1_ERROR_NONE, "unregisterBuffer(%p): failed %d",
             handle, error);
 
@@ -120,11 +146,20 @@
     ATRACE_CALL();
 
     gralloc1_rect_t accessRegion = asGralloc1Rect(bounds);
-    sp<Fence> fence = new Fence(fenceFd);
-    gralloc1_error_t error = mDevice->lock(handle,
-            static_cast<gralloc1_producer_usage_t>(usage),
-            static_cast<gralloc1_consumer_usage_t>(usage),
-            &accessRegion, vaddr, fence);
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        const Gralloc2::Device::Rect& accessRect =
+            *reinterpret_cast<Gralloc2::Device::Rect*>(&accessRegion);
+        error = static_cast<gralloc1_error_t>(mMapper->lock(
+                    handle, usage, usage, accessRect, fenceFd, *vaddr));
+    } else {
+        sp<Fence> fence = new Fence(fenceFd);
+        error = mDevice->lock(handle,
+                static_cast<gralloc1_producer_usage_t>(usage),
+                static_cast<gralloc1_consumer_usage_t>(usage),
+                &accessRegion, vaddr, fence);
+    }
+
     ALOGW_IF(error != GRALLOC1_ERROR_NONE, "lock(%p, ...) failed: %d", handle,
             error);
 
@@ -160,20 +195,29 @@
     ATRACE_CALL();
 
     gralloc1_rect_t accessRegion = asGralloc1Rect(bounds);
-    sp<Fence> fence = new Fence(fenceFd);
 
-    if (mDevice->hasCapability(GRALLOC1_CAPABILITY_ON_ADAPTER)) {
-        gralloc1_error_t error = mDevice->lockYCbCr(handle,
-                static_cast<gralloc1_producer_usage_t>(usage),
-                static_cast<gralloc1_consumer_usage_t>(usage),
-                &accessRegion, ycbcr, fence);
-        ALOGW_IF(error != GRALLOC1_ERROR_NONE, "lockYCbCr(%p, ...) failed: %d",
-                handle, error);
-        return error;
+    if (!mMapper->valid()) {
+        if (mDevice->hasCapability(GRALLOC1_CAPABILITY_ON_ADAPTER)) {
+            sp<Fence> fence = new Fence(fenceFd);
+            gralloc1_error_t error = mDevice->lockYCbCr(handle,
+                    static_cast<gralloc1_producer_usage_t>(usage),
+                    static_cast<gralloc1_consumer_usage_t>(usage),
+                    &accessRegion, ycbcr, fence);
+            ALOGW_IF(error != GRALLOC1_ERROR_NONE,
+                    "lockYCbCr(%p, ...) failed: %d", handle, error);
+            return error;
+        }
     }
 
     uint32_t numPlanes = 0;
-    gralloc1_error_t error = mDevice->getNumFlexPlanes(handle, &numPlanes);
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        error = static_cast<gralloc1_error_t>(
+                mMapper->getNumFlexPlanes(handle, numPlanes));
+    } else {
+        error = mDevice->getNumFlexPlanes(handle, &numPlanes);
+    }
+
     if (error != GRALLOC1_ERROR_NONE) {
         ALOGV("Failed to retrieve number of flex planes: %d", error);
         return error;
@@ -188,10 +232,21 @@
     flexLayout.num_planes = numPlanes;
     flexLayout.planes = planes.data();
 
-    error = mDevice->lockFlex(handle,
-            static_cast<gralloc1_producer_usage_t>(usage),
-            static_cast<gralloc1_consumer_usage_t>(usage),
-            &accessRegion, &flexLayout, fence);
+    if (mMapper->valid()) {
+        const Gralloc2::Device::Rect& accessRect =
+            *reinterpret_cast<Gralloc2::Device::Rect*>(&accessRegion);
+        Gralloc2::FlexLayout& layout =
+            *reinterpret_cast<Gralloc2::FlexLayout*>(&flexLayout);
+        error = static_cast<gralloc1_error_t>(mMapper->lock(
+                    handle, usage, usage, accessRect, fenceFd, layout));
+    } else {
+        sp<Fence> fence = new Fence(fenceFd);
+        error = mDevice->lockFlex(handle,
+                static_cast<gralloc1_producer_usage_t>(usage),
+                static_cast<gralloc1_consumer_usage_t>(usage),
+                &accessRegion, &flexLayout, fence);
+    }
+
     if (error != GRALLOC1_ERROR_NONE) {
         ALOGW("lockFlex(%p, ...) failed: %d", handle, error);
         return error;
@@ -276,14 +331,20 @@
 {
     ATRACE_CALL();
 
-    sp<Fence> fence = Fence::NO_FENCE;
-    gralloc1_error_t error = mDevice->unlock(handle, &fence);
-    if (error != GRALLOC1_ERROR_NONE) {
-        ALOGE("unlock(%p) failed: %d", handle, error);
-        return error;
-    }
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        *fenceFd = mMapper->unlock(handle);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        sp<Fence> fence = Fence::NO_FENCE;
+        error = mDevice->unlock(handle, &fence);
+        if (error != GRALLOC1_ERROR_NONE) {
+            ALOGE("unlock(%p) failed: %d", handle, error);
+            return error;
+        }
 
-    *fenceFd = fence->dup();
+        *fenceFd = fence->dup();
+    }
     return error;
 }
 
diff --git a/opengl/libs/Android.mk b/opengl/libs/Android.mk
index f0ba728..4f7c7e4 100644
--- a/opengl/libs/Android.mk
+++ b/opengl/libs/Android.mk
@@ -42,9 +42,6 @@
 LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
 LOCAL_CFLAGS += -fvisibility=hidden
 
-ifeq ($(BOARD_ALLOW_EGL_HIBERNATION),true)
-  LOCAL_CFLAGS += -DBOARD_ALLOW_EGL_HIBERNATION
-endif
 ifneq ($(MAX_EGL_CACHE_ENTRY_SIZE),)
   LOCAL_CFLAGS += -DMAX_EGL_CACHE_ENTRY_SIZE=$(MAX_EGL_CACHE_ENTRY_SIZE)
 endif
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 1e39aae..a32f037 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -215,8 +215,6 @@
             *major = VERSION_MAJOR;
         if (minor != NULL)
             *minor = VERSION_MINOR;
-
-        mHibernation.setDisplayValid(true);
     }
 
     {
@@ -265,8 +263,6 @@
             res = EGL_TRUE;
         }
 
-        mHibernation.setDisplayValid(false);
-
         // Reset the extension string since it will be regenerated if we get
         // reinitialized.
         mExtensionString.setTo("");
@@ -345,16 +341,12 @@
                     disp.dpy, impl_draw, impl_read, impl_ctx);
             if (result == EGL_TRUE) {
                 c->onMakeCurrent(draw, read);
-                if (!cur_c) {
-                    mHibernation.incWakeCount(HibernationMachine::STRONG);
-                }
             }
         } else {
             result = cur_c->cnx->egl.eglMakeCurrent(
                     disp.dpy, impl_draw, impl_read, impl_ctx);
             if (result == EGL_TRUE) {
                 cur_c->onLooseCurrent();
-                mHibernation.decWakeCount(HibernationMachine::STRONG);
             }
         }
     }
@@ -379,63 +371,5 @@
 }
 
 // ----------------------------------------------------------------------------
-
-bool egl_display_t::HibernationMachine::incWakeCount(WakeRefStrength strength) {
-    Mutex::Autolock _l(mLock);
-    ALOGE_IF(mWakeCount < 0 || mWakeCount == INT32_MAX,
-             "Invalid WakeCount (%d) on enter\n", mWakeCount);
-
-    mWakeCount++;
-    if (strength == STRONG)
-        mAttemptHibernation = false;
-
-    if (CC_UNLIKELY(mHibernating)) {
-        ALOGV("Awakening\n");
-        egl_connection_t* const cnx = &gEGLImpl;
-
-        // These conditions should be guaranteed before entering hibernation;
-        // we don't want to get into a state where we can't wake up.
-        ALOGD_IF(!mDpyValid || !cnx->egl.eglAwakenProcessIMG,
-                 "Invalid hibernation state, unable to awaken\n");
-
-        if (!cnx->egl.eglAwakenProcessIMG()) {
-            ALOGE("Failed to awaken EGL implementation\n");
-            return false;
-        }
-        mHibernating = false;
-    }
-    return true;
-}
-
-void egl_display_t::HibernationMachine::decWakeCount(WakeRefStrength strength) {
-    Mutex::Autolock _l(mLock);
-    ALOGE_IF(mWakeCount <= 0, "Invalid WakeCount (%d) on leave\n", mWakeCount);
-
-    mWakeCount--;
-    if (strength == STRONG)
-        mAttemptHibernation = true;
-
-    if (mWakeCount == 0 && CC_UNLIKELY(mAttemptHibernation)) {
-        egl_connection_t* const cnx = &gEGLImpl;
-        mAttemptHibernation = false;
-        if (mAllowHibernation && mDpyValid &&
-                cnx->egl.eglHibernateProcessIMG &&
-                cnx->egl.eglAwakenProcessIMG) {
-            ALOGV("Hibernating\n");
-            if (!cnx->egl.eglHibernateProcessIMG()) {
-                ALOGE("Failed to hibernate EGL implementation\n");
-                return;
-            }
-            mHibernating = true;
-        }
-    }
-}
-
-void egl_display_t::HibernationMachine::setDisplayValid(bool valid) {
-    Mutex::Autolock _l(mLock);
-    mDpyValid = valid;
-}
-
-// ----------------------------------------------------------------------------
 }; // namespace android
 // ----------------------------------------------------------------------------
diff --git a/opengl/libs/EGL/egl_display.h b/opengl/libs/EGL/egl_display.h
index 2d86295..e17558c 100644
--- a/opengl/libs/EGL/egl_display.h
+++ b/opengl/libs/EGL/egl_display.h
@@ -68,20 +68,6 @@
     // add reference to this object. returns true if this is a valid object.
     bool getObject(egl_object_t* object) const;
 
-    // These notifications allow the display to keep track of how many window
-    // surfaces exist, which it uses to decide whether to hibernate the
-    // underlying EGL implementation. They can be called by any thread without
-    // holding a lock, but must be called via egl_display_ptr to ensure
-    // proper hibernate/wakeup sequencing. If a surface destruction triggers
-    // hibernation, hibernation will be delayed at least until the calling
-    // thread's egl_display_ptr is destroyed.
-    void onWindowSurfaceCreated() {
-        mHibernation.incWakeCount(HibernationMachine::STRONG);
-    }
-    void onWindowSurfaceDestroyed() {
-        mHibernation.decWakeCount(HibernationMachine::STRONG);
-    }
-
     static egl_display_t* get(EGLDisplay dpy);
     static EGLDisplay getFromNativeDisplay(EGLNativeDisplayType disp);
 
@@ -127,8 +113,6 @@
 
 private:
     friend class egl_display_ptr;
-    bool enter() { return mHibernation.incWakeCount(HibernationMachine::WEAK); }
-    void leave() { return mHibernation.decWakeCount(HibernationMachine::WEAK); }
 
             uint32_t                    refs;
             bool                        eglIsInitialized;
@@ -139,47 +123,6 @@
             String8 mVersionString;
             String8 mClientApiString;
             String8 mExtensionString;
-
-    // HibernationMachine uses its own internal mutex to protect its own data.
-    // The owning egl_display_t's lock may be but is not required to be held
-    // when calling HibernationMachine methods. As a result, nothing in this
-    // class may call back up to egl_display_t directly or indirectly.
-    class HibernationMachine {
-    public:
-        // STRONG refs cancel (inc) or initiate (dec) a hibernation attempt
-        // the next time the wakecount reaches zero. WEAK refs don't affect
-        // whether a hibernation attempt will be made. Use STRONG refs only
-        // for infrequent/heavy changes that are likely to indicate the
-        // EGLDisplay is entering or leaving a long-term idle state.
-        enum WakeRefStrength {
-            WEAK   = 0,
-            STRONG = 1,
-        };
-
-        HibernationMachine(): mWakeCount(0), mHibernating(false),
-                mAttemptHibernation(false), mDpyValid(false),
-#if BOARD_ALLOW_EGL_HIBERNATION
-                mAllowHibernation(true)
-#else
-                mAllowHibernation(false)
-#endif
-        {}
-        ~HibernationMachine() {}
-
-        bool incWakeCount(WakeRefStrength strenth);
-        void decWakeCount(WakeRefStrength strenth);
-
-        void setDisplayValid(bool valid);
-
-    private:
-        Mutex      mLock;
-        int32_t    mWakeCount;
-        bool       mHibernating;
-        bool       mAttemptHibernation;
-        bool       mDpyValid;
-        const bool mAllowHibernation;
-    };
-    HibernationMachine mHibernation;
 };
 
 // ----------------------------------------------------------------------------
@@ -190,13 +133,7 @@
 // as the egl_display_ptr exists.
 class egl_display_ptr {
 public:
-    explicit egl_display_ptr(egl_display_t* dpy): mDpy(dpy) {
-        if (mDpy) {
-            if (CC_UNLIKELY(!mDpy->enter())) {
-                mDpy = NULL;
-            }
-        }
-    }
+    explicit egl_display_ptr(egl_display_t* dpy): mDpy(dpy) {}
 
     // We only really need a C++11 move constructor, not a copy constructor.
     // A move constructor would save an enter()/leave() pair on every EGL API
@@ -208,17 +145,9 @@
     //     other.mDpy = NULL;
     // }
     //
-    egl_display_ptr(const egl_display_ptr& other): mDpy(other.mDpy) {
-        if (mDpy) {
-            mDpy->enter();
-        }
-    }
+    egl_display_ptr(const egl_display_ptr& other): mDpy(other.mDpy) {}
 
-    ~egl_display_ptr() {
-        if (mDpy) {
-            mDpy->leave();
-        }
-    }
+    ~egl_display_ptr() {}
 
     const egl_display_t* operator->() const { return mDpy; }
           egl_display_t* operator->()       { return mDpy; }
diff --git a/opengl/libs/EGL/egl_object.cpp b/opengl/libs/EGL/egl_object.cpp
index cfecf77..6a76737 100644
--- a/opengl/libs/EGL/egl_object.cpp
+++ b/opengl/libs/EGL/egl_object.cpp
@@ -69,17 +69,12 @@
         egl_connection_t const* cnx) :
     egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx),
     enableTimestamps(false), connected(true)
-{
-    if (win) {
-        getDisplay()->onWindowSurfaceCreated();
-    }
-}
+{}
 
 egl_surface_t::~egl_surface_t() {
     ANativeWindow* const window = win.get();
     if (window != NULL) {
         disconnect();
-        getDisplay()->onWindowSurfaceDestroyed();
     }
 }
 
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 3253056..f5a4114 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -142,7 +142,12 @@
     libgui \
     libpowermanager \
     libvulkan \
-    libprotobuf-cpp-full
+    libprotobuf-cpp-full \
+    libhidl \
+    libhwbinder \
+    libbase \
+    libutils \
+    android.hardware.power@1.0
 
 LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
 
diff --git a/services/surfaceflinger/DisplayHardware/PowerHAL.cpp b/services/surfaceflinger/DisplayHardware/PowerHAL.cpp
index bd50b4a..1c0a1fe 100644
--- a/services/surfaceflinger/DisplayHardware/PowerHAL.cpp
+++ b/services/surfaceflinger/DisplayHardware/PowerHAL.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <android/hardware/power/1.0/IPower.h>
 #include <stdint.h>
 #include <sys/types.h>
 
@@ -26,6 +27,7 @@
 
 #include "PowerHAL.h"
 
+using android::hardware::power::V1_0::PowerHint;
 namespace android {
 // ---------------------------------------------------------------------------
 
@@ -39,7 +41,9 @@
         }
         mPowerManager = interface_cast<IPowerManager>(bs);
     }
-    status_t status = mPowerManager->powerHint(POWER_HINT_VSYNC, enabled ? 1 : 0);
+    status_t status;
+    status = mPowerManager->powerHint(static_cast<int>(PowerHint::VSYNC),
+            enabled ? 1 : 0);
     if(status == DEAD_OBJECT) {
         mPowerManager = NULL;
     }