diff --git a/include/gui/ISurfaceComposer.h b/include/gui/ISurfaceComposer.h
index 8c3d49e..af26721 100644
--- a/include/gui/ISurfaceComposer.h
+++ b/include/gui/ISurfaceComposer.h
@@ -39,6 +39,7 @@
 class DisplayState;
 struct DisplayInfo;
 struct DisplayStatInfo;
+class HdrCapabilities;
 class IDisplayEventConnection;
 class IMemoryHeap;
 class Rect;
@@ -157,6 +158,13 @@
      * Requires the ACCESS_SURFACE_FLINGER permission.
      */
     virtual status_t getAnimationFrameStats(FrameStats* outStats) const = 0;
+
+    /* Gets the supported HDR capabilities of the given display.
+     *
+     * Requires the ACCESS_SURFACE_FLINGER permission.
+     */
+    virtual status_t getHdrCapabilities(const sp<IBinder>& display,
+            HdrCapabilities* outCapabilities) const = 0;
 };
 
 // ----------------------------------------------------------------------------
@@ -184,6 +192,7 @@
         GET_ANIMATION_FRAME_STATS,
         SET_POWER_MODE,
         GET_DISPLAY_STATS,
+        GET_HDR_CAPABILITIES,
     };
 
     virtual status_t onTransact(uint32_t code, const Parcel& data,
diff --git a/include/gui/SurfaceComposerClient.h b/include/gui/SurfaceComposerClient.h
index 794fe4c..9161dbb 100644
--- a/include/gui/SurfaceComposerClient.h
+++ b/include/gui/SurfaceComposerClient.h
@@ -40,6 +40,7 @@
 
 class DisplayInfo;
 class Composer;
+class HdrCapabilities;
 class ISurfaceComposerClient;
 class IGraphicBufferProducer;
 class Region;
@@ -145,6 +146,9 @@
     static status_t clearAnimationFrameStats();
     static status_t getAnimationFrameStats(FrameStats* outStats);
 
+    static status_t getHdrCapabilities(const sp<IBinder>& display,
+            HdrCapabilities* outCapabilities);
+
     static void setDisplaySurface(const sp<IBinder>& token,
             const sp<IGraphicBufferProducer>& bufferProducer);
     static void setDisplayLayerStack(const sp<IBinder>& token,
diff --git a/include/ui/HdrCapabilities.h b/include/ui/HdrCapabilities.h
new file mode 100644
index 0000000..a7cd5fb
--- /dev/null
+++ b/include/ui/HdrCapabilities.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_HDR_CAPABILTIES_H
+#define ANDROID_UI_HDR_CAPABILTIES_H
+
+#include <binder/Parcelable.h>
+
+namespace android {
+
+class HdrCapabilities : public Parcelable
+{
+public:
+    HdrCapabilities(const std::vector<int32_t /*android_hdr_t*/>& types,
+            float maxLuminance, float maxAverageLuminance, float minLuminance)
+      : mSupportedHdrTypes(types),
+        mMaxLuminance(maxLuminance),
+        mMaxAverageLuminance(maxAverageLuminance),
+        mMinLuminance(minLuminance) {}
+
+    // Make this move-constructable and move-assignable
+    HdrCapabilities(HdrCapabilities&& other) = default;
+    HdrCapabilities& operator=(HdrCapabilities&& other) = default;
+
+    HdrCapabilities()
+      : mSupportedHdrTypes(),
+        mMaxLuminance(-1.0f),
+        mMaxAverageLuminance(-1.0f),
+        mMinLuminance(-1.0f) {}
+
+    virtual ~HdrCapabilities() = default;
+
+    const std::vector<int32_t /*android_hdr_t*/>& getSupportedHdrTypes() const {
+        return mSupportedHdrTypes;
+    }
+    float getDesiredMaxLuminance() const { return mMaxLuminance; }
+    float getDesiredMaxAverageLuminance() const { return mMaxAverageLuminance; }
+    float getDesiredMinLuminance() const { return mMinLuminance; }
+
+    // Parcelable interface
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+private:
+    std::vector<int32_t /*android_hdr_t*/> mSupportedHdrTypes;
+    float mMaxLuminance;
+    float mMaxAverageLuminance;
+    float mMinLuminance;
+};
+
+} // namespace android
+
+#endif
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index b4cbf84..a8b4fa8 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -34,6 +34,7 @@
 
 #include <ui/DisplayInfo.h>
 #include <ui/DisplayStatInfo.h>
+#include <ui/HdrCapabilities.h>
 
 #include <utils/Log.h>
 
@@ -282,6 +283,28 @@
         reply.read(*outStats);
         return reply.readInt32();
     }
+
+    virtual status_t getHdrCapabilities(const sp<IBinder>& display,
+            HdrCapabilities* outCapabilities) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+        status_t result = data.writeStrongBinder(display);
+        if (result != NO_ERROR) {
+            ALOGE("getHdrCapabilities failed to writeStrongBinder: %d", result);
+            return result;
+        }
+        result = remote()->transact(BnSurfaceComposer::GET_HDR_CAPABILITIES,
+                data, &reply);
+        if (result != NO_ERROR) {
+            ALOGE("getHdrCapabilities failed to transact: %d", result);
+            return result;
+        }
+        result = reply.readInt32();
+        if (result == NO_ERROR) {
+            result = reply.readParcelable(outCapabilities);
+        }
+        return result;
+    }
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
@@ -467,6 +490,23 @@
             setPowerMode(display, mode);
             return NO_ERROR;
         }
+        case GET_HDR_CAPABILITIES: {
+            CHECK_INTERFACE(ISurfaceComposer, data, reply);
+            sp<IBinder> display = nullptr;
+            status_t result = data.readStrongBinder(&display);
+            if (result != NO_ERROR) {
+                ALOGE("getHdrCapabilities failed to readStrongBinder: %d",
+                        result);
+                return result;
+            }
+            HdrCapabilities capabilities;
+            result = getHdrCapabilities(display, &capabilities);
+            reply->writeInt32(result);
+            if (result == NO_ERROR) {
+                reply->writeParcelable(capabilities);
+            }
+            return NO_ERROR;
+        }
         default: {
             return BBinder::onTransact(code, data, reply, flags);
         }
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 04b5446..418892a 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -722,6 +722,12 @@
     return ComposerService::getComposerService()->getAnimationFrameStats(outStats);
 }
 
+status_t SurfaceComposerClient::getHdrCapabilities(const sp<IBinder>& display,
+        HdrCapabilities* outCapabilities) {
+    return ComposerService::getComposerService()->getHdrCapabilities(display,
+            outCapabilities);
+}
+
 // ----------------------------------------------------------------------------
 
 status_t ScreenshotClient::capture(
diff --git a/libs/ui/Android.mk b/libs/ui/Android.mk
index e4cdcab..ee6c093 100644
--- a/libs/ui/Android.mk
+++ b/libs/ui/Android.mk
@@ -40,12 +40,14 @@
 	GraphicBuffer.cpp \
 	GraphicBufferAllocator.cpp \
 	GraphicBufferMapper.cpp \
+	HdrCapabilities.cpp \
 	PixelFormat.cpp \
 	Rect.cpp \
 	Region.cpp \
 	UiConfig.cpp
 
 LOCAL_SHARED_LIBRARIES := \
+	libbinder \
 	libcutils \
 	libhardware \
 	libsync \
diff --git a/libs/ui/HdrCapabilities.cpp b/libs/ui/HdrCapabilities.cpp
new file mode 100644
index 0000000..511f68a
--- /dev/null
+++ b/libs/ui/HdrCapabilities.cpp
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+#include <ui/HdrCapabilities.h>
+
+#include <binder/Parcel.h>
+
+namespace android {
+
+status_t HdrCapabilities::writeToParcel(Parcel* parcel) const
+{
+    status_t result = parcel->writeInt32Vector(mSupportedHdrTypes);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->writeFloat(mMaxLuminance);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->writeFloat(mMaxAverageLuminance);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->writeFloat(mMinLuminance);
+    return result;
+}
+
+status_t HdrCapabilities::readFromParcel(const Parcel* parcel)
+{
+    status_t result = parcel->readInt32Vector(&mSupportedHdrTypes);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->readFloat(&mMaxLuminance);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->readFloat(&mMaxAverageLuminance);
+    if (result != OK) {
+        return result;
+    }
+    result = parcel->readFloat(&mMinLuminance);
+    return result;
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index 0e97a53..5c78c68 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -74,6 +74,7 @@
 using android::Fence;
 using android::FloatRect;
 using android::GraphicBuffer;
+using android::HdrCapabilities;
 using android::Rect;
 using android::Region;
 using android::sp;
@@ -100,6 +101,7 @@
     mGetDisplayRequests(nullptr),
     mGetDisplayType(nullptr),
     mGetDozeSupport(nullptr),
+    mGetHdrCapabilities(nullptr),
     mGetReleaseFences(nullptr),
     mPresentDisplay(nullptr),
     mSetActiveConfig(nullptr),
@@ -307,82 +309,84 @@
     // loadFunctionPointer specifying which function failed to load
 
     // Display function pointers
-    if(!loadFunctionPointer(FunctionDescriptor::CreateVirtualDisplay,
+    if (!loadFunctionPointer(FunctionDescriptor::CreateVirtualDisplay,
             mCreateVirtualDisplay)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::DestroyVirtualDisplay,
+    if (!loadFunctionPointer(FunctionDescriptor::DestroyVirtualDisplay,
             mDestroyVirtualDisplay)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::Dump, mDump)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetMaxVirtualDisplayCount,
+    if (!loadFunctionPointer(FunctionDescriptor::Dump, mDump)) return;
+    if (!loadFunctionPointer(FunctionDescriptor::GetMaxVirtualDisplayCount,
             mGetMaxVirtualDisplayCount)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::RegisterCallback,
+    if (!loadFunctionPointer(FunctionDescriptor::RegisterCallback,
             mRegisterCallback)) return;
 
     // Device function pointers
-    if(!loadFunctionPointer(FunctionDescriptor::AcceptDisplayChanges,
+    if (!loadFunctionPointer(FunctionDescriptor::AcceptDisplayChanges,
             mAcceptDisplayChanges)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::CreateLayer,
+    if (!loadFunctionPointer(FunctionDescriptor::CreateLayer,
             mCreateLayer)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::DestroyLayer,
+    if (!loadFunctionPointer(FunctionDescriptor::DestroyLayer,
             mDestroyLayer)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetActiveConfig,
+    if (!loadFunctionPointer(FunctionDescriptor::GetActiveConfig,
             mGetActiveConfig)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetChangedCompositionTypes,
+    if (!loadFunctionPointer(FunctionDescriptor::GetChangedCompositionTypes,
             mGetChangedCompositionTypes)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDisplayAttribute,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDisplayAttribute,
             mGetDisplayAttribute)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDisplayConfigs,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDisplayConfigs,
             mGetDisplayConfigs)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDisplayName,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDisplayName,
             mGetDisplayName)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDisplayRequests,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDisplayRequests,
             mGetDisplayRequests)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDisplayType,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDisplayType,
             mGetDisplayType)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetDozeSupport,
+    if (!loadFunctionPointer(FunctionDescriptor::GetDozeSupport,
             mGetDozeSupport)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::GetReleaseFences,
+    if (!loadFunctionPointer(FunctionDescriptor::GetHdrCapabilities,
+            mGetHdrCapabilities)) return;
+    if (!loadFunctionPointer(FunctionDescriptor::GetReleaseFences,
             mGetReleaseFences)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::PresentDisplay,
+    if (!loadFunctionPointer(FunctionDescriptor::PresentDisplay,
             mPresentDisplay)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetActiveConfig,
+    if (!loadFunctionPointer(FunctionDescriptor::SetActiveConfig,
             mSetActiveConfig)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetClientTarget,
+    if (!loadFunctionPointer(FunctionDescriptor::SetClientTarget,
             mSetClientTarget)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetOutputBuffer,
+    if (!loadFunctionPointer(FunctionDescriptor::SetOutputBuffer,
             mSetOutputBuffer)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetPowerMode,
+    if (!loadFunctionPointer(FunctionDescriptor::SetPowerMode,
             mSetPowerMode)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetVsyncEnabled,
+    if (!loadFunctionPointer(FunctionDescriptor::SetVsyncEnabled,
             mSetVsyncEnabled)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::ValidateDisplay,
+    if (!loadFunctionPointer(FunctionDescriptor::ValidateDisplay,
             mValidateDisplay)) return;
 
     // Layer function pointers
-    if(!loadFunctionPointer(FunctionDescriptor::SetCursorPosition,
+    if (!loadFunctionPointer(FunctionDescriptor::SetCursorPosition,
             mSetCursorPosition)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerBuffer,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerBuffer,
             mSetLayerBuffer)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerSurfaceDamage,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerSurfaceDamage,
             mSetLayerSurfaceDamage)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerBlendMode,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerBlendMode,
             mSetLayerBlendMode)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerColor,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerColor,
             mSetLayerColor)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerCompositionType,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerCompositionType,
             mSetLayerCompositionType)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerDisplayFrame,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerDisplayFrame,
             mSetLayerDisplayFrame)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerPlaneAlpha,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerPlaneAlpha,
             mSetLayerPlaneAlpha)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerSidebandStream,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerSidebandStream,
             mSetLayerSidebandStream)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerSourceCrop,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerSourceCrop,
             mSetLayerSourceCrop)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerTransform,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerTransform,
             mSetLayerTransform)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerVisibleRegion,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerVisibleRegion,
             mSetLayerVisibleRegion)) return;
-    if(!loadFunctionPointer(FunctionDescriptor::SetLayerZOrder,
+    if (!loadFunctionPointer(FunctionDescriptor::SetLayerZOrder,
             mSetLayerZOrder)) return;
 }
 
@@ -637,6 +641,34 @@
     return Error::None;
 }
 
+Error Display::getHdrCapabilities(
+        std::unique_ptr<HdrCapabilities>* outCapabilities) const
+{
+    uint32_t numTypes = 0;
+    float maxLuminance = -1.0f;
+    float maxAverageLuminance = -1.0f;
+    float minLuminance = -1.0f;
+    int32_t intError = mDevice.mGetHdrCapabilities(mDevice.mHwcDevice, mId,
+            &numTypes, nullptr, &maxLuminance, &maxAverageLuminance,
+            &minLuminance);
+    auto error = static_cast<HWC2::Error>(intError);
+    if (error != Error::None) {
+        return error;
+    }
+
+    std::vector<int32_t> types(numTypes);
+    intError = mDevice.mGetHdrCapabilities(mDevice.mHwcDevice, mId, &numTypes,
+            types.data(), &maxLuminance, &maxAverageLuminance, &minLuminance);
+    error = static_cast<HWC2::Error>(intError);
+    if (error != Error::None) {
+        return error;
+    }
+
+    *outCapabilities = std::make_unique<HdrCapabilities>(std::move(types),
+            maxLuminance, maxAverageLuminance, minLuminance);
+    return Error::None;
+}
+
 Error Display::getReleaseFences(
         std::unordered_map<std::shared_ptr<Layer>, sp<Fence>>* outFences) const
 {
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index a7bd28c..7d33a0a 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -23,6 +23,8 @@
 #undef HWC2_INCLUDE_STRINGIFICATION
 #undef HWC2_USE_CPP11
 
+#include <ui/HdrCapabilities.h>
+
 #include <utils/Log.h>
 #include <utils/StrongPointer.h>
 #include <utils/Timers.h>
@@ -145,6 +147,7 @@
     HWC2_PFN_GET_DISPLAY_REQUESTS mGetDisplayRequests;
     HWC2_PFN_GET_DISPLAY_TYPE mGetDisplayType;
     HWC2_PFN_GET_DOZE_SUPPORT mGetDozeSupport;
+    HWC2_PFN_GET_HDR_CAPABILITIES mGetHdrCapabilities;
     HWC2_PFN_GET_RELEASE_FENCES mGetReleaseFences;
     HWC2_PFN_PRESENT_DISPLAY mPresentDisplay;
     HWC2_PFN_SET_ACTIVE_CONFIG mSetActiveConfig;
@@ -279,6 +282,8 @@
                     outLayerRequests);
     [[clang::warn_unused_result]] Error getType(DisplayType* outType) const;
     [[clang::warn_unused_result]] Error supportsDoze(bool* outSupport) const;
+    [[clang::warn_unused_result]] Error getHdrCapabilities(
+            std::unique_ptr<android::HdrCapabilities>* outCapabilities) const;
     [[clang::warn_unused_result]] Error getReleaseFences(
             std::unordered_map<std::shared_ptr<Layer>,
                     android::sp<android::Fence>>* outFences) const;
diff --git a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp
index dabc77f..6ebcdfe 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp
@@ -238,6 +238,11 @@
             return asFP<HWC2_PFN_GET_DOZE_SUPPORT>(
                     displayHook<decltype(&Display::getDozeSupport),
                     &Display::getDozeSupport, int32_t*>);
+        case FunctionDescriptor::GetHdrCapabilities:
+            return asFP<HWC2_PFN_GET_HDR_CAPABILITIES>(
+                    displayHook<decltype(&Display::getHdrCapabilities),
+                    &Display::getHdrCapabilities, uint32_t*, int32_t*, float*,
+                    float*, float*>);
         case FunctionDescriptor::GetReleaseFences:
             return asFP<HWC2_PFN_GET_RELEASE_FENCES>(
                     displayHook<decltype(&Display::getReleaseFences),
@@ -709,6 +714,15 @@
     return Error::None;
 }
 
+Error HWC2On1Adapter::Display::getHdrCapabilities(uint32_t* outNumTypes,
+        int32_t* /*outTypes*/, float* /*outMaxLuminance*/,
+        float* /*outMaxAverageLuminance*/, float* /*outMinLuminance*/)
+{
+    // This isn't supported on HWC1, so per the HWC2 header, return numTypes = 0
+    *outNumTypes = 0;
+    return Error::None;
+}
+
 Error HWC2On1Adapter::Display::getName(uint32_t* outSize, char* outName)
 {
     std::unique_lock<std::recursive_mutex> lock(mStateMutex);
diff --git a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h
index bffeefe..6fdb184 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h
@@ -194,6 +194,9 @@
             HWC2::Error getConfigs(uint32_t* outNumConfigs,
                     hwc2_config_t* outConfigIds);
             HWC2::Error getDozeSupport(int32_t* outSupport);
+            HWC2::Error getHdrCapabilities(uint32_t* outNumTypes,
+                    int32_t* outTypes, float* outMaxLuminance,
+                    float* outMaxAverageLuminance, float* outMinLuminance);
             HWC2::Error getName(uint32_t* outSize, char* outName);
             HWC2::Error getReleaseFences(uint32_t* outNumElements,
                     hwc2_layer_t* outLayers, int32_t* outFences);
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 26f9519..cd2e05f 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -736,6 +736,26 @@
     mDisplayData[displayId].releaseFences.clear();
 }
 
+std::unique_ptr<HdrCapabilities> HWComposer::getHdrCapabilities(
+        int32_t displayId) {
+    if (!isValidDisplay(displayId)) {
+        ALOGE("getHdrCapabilities: Display %d is not valid", displayId);
+        return nullptr;
+    }
+
+    auto& hwcDisplay = mDisplayData[displayId].hwcDisplay;
+    std::unique_ptr<HdrCapabilities> capabilities;
+    auto error = hwcDisplay->getHdrCapabilities(&capabilities);
+    if (error != HWC2::Error::None) {
+        ALOGE("getOutputCapabilities: Failed to get capabilities on display %d:"
+                " %s (%d)", displayId, to_string(error).c_str(),
+                static_cast<int32_t>(error));
+        return nullptr;
+    }
+
+    return capabilities;
+}
+
 // Converts a PixelFormat to a human-readable string.  Max 11 chars.
 // (Could use a table of prefab String8 objects.)
 /*
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 30c8f67..d407877 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -130,6 +130,9 @@
     // it can call this to clear the shared pointers in the release fence map
     void clearReleaseFences(int32_t displayId);
 
+    // Returns the HDR capabilities of the given display
+    std::unique_ptr<HdrCapabilities> getHdrCapabilities(int32_t displayId);
+
     // Events handling ---------------------------------------------------------
 
     void setVsyncEnabled(int32_t disp, HWC2::Vsync enabled);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 40e9ae7..1f85bee 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -715,6 +715,27 @@
     return NO_ERROR;
 }
 
+status_t SurfaceFlinger::getHdrCapabilities(const sp<IBinder>& display,
+        HdrCapabilities* outCapabilities) const {
+    Mutex::Autolock _l(mStateLock);
+
+    sp<const DisplayDevice> displayDevice(getDisplayDevice(display));
+    if (displayDevice == nullptr) {
+        ALOGE("getHdrCapabilities: Invalid display %p", displayDevice.get());
+        return BAD_VALUE;
+    }
+
+    std::unique_ptr<HdrCapabilities> capabilities =
+            mHwc->getHdrCapabilities(displayDevice->getHwcDisplayId());
+    if (capabilities) {
+        std::swap(*outCapabilities, *capabilities);
+    } else {
+        return BAD_VALUE;
+    }
+
+    return NO_ERROR;
+}
+
 // ----------------------------------------------------------------------------
 
 sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() {
@@ -2881,6 +2902,7 @@
         case CLEAR_ANIMATION_FRAME_STATS:
         case GET_ANIMATION_FRAME_STATS:
         case SET_POWER_MODE:
+        case GET_HDR_CAPABILITIES:
         {
             // codes that require permission check
             IPCThreadState* ipc = IPCThreadState::self();
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 37110b9..8c974d0 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -222,6 +222,8 @@
     virtual status_t setActiveConfig(const sp<IBinder>& display, int id);
     virtual status_t clearAnimationFrameStats();
     virtual status_t getAnimationFrameStats(FrameStats* outStats) const;
+    virtual status_t getHdrCapabilities(const sp<IBinder>& display,
+            HdrCapabilities* outCapabilities) const;
 
     /* ------------------------------------------------------------------------
      * DeathRecipient interface
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index a63ec50..e9b3d99 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -45,6 +45,7 @@
 #include <gui/GraphicBufferAlloc.h>
 
 #include <ui/GraphicBufferAllocator.h>
+#include <ui/HdrCapabilities.h>
 #include <ui/PixelFormat.h>
 #include <ui/UiConfig.h>
 
@@ -748,6 +749,13 @@
     return NO_ERROR;
 }
 
+status_t SurfaceFlinger::getHdrCapabilities(const sp<IBinder>& /*display*/,
+        HdrCapabilities* outCapabilities) const {
+    // HWC1 does not provide HDR capabilities
+    *outCapabilities = HdrCapabilities();
+    return NO_ERROR;
+}
+
 // ----------------------------------------------------------------------------
 
 sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() {
@@ -2917,6 +2925,7 @@
         case CLEAR_ANIMATION_FRAME_STATS:
         case GET_ANIMATION_FRAME_STATS:
         case SET_POWER_MODE:
+        case GET_HDR_CAPABILITIES:
         {
             // codes that require permission check
             IPCThreadState* ipc = IPCThreadState::self();