diff --git a/Android.bp b/Android.bp
index 7ba06ad..143f0f8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -3,6 +3,7 @@
     "audio/common/2.0",
     "audio/effect/2.0",
     "benchmarks/msgq/1.0",
+    "memtrack/1.0",
     "nfc/1.0",
     "nfc/1.0/default",
     "tests/bar/1.0",
diff --git a/memtrack/1.0/Android.bp b/memtrack/1.0/Android.bp
new file mode 100644
index 0000000..3696aea
--- /dev/null
+++ b/memtrack/1.0/Android.bp
@@ -0,0 +1,46 @@
+// This file is autogenerated by hidl-gen. Do not edit manually.
+
+genrule {
+    name: "android.hardware.memtrack@1.0_genc++",
+    tool: "hidl-gen",
+    cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.memtrack@1.0",
+    srcs: [
+        "types.hal",
+        "IMemtrack.hal",
+    ],
+    out: [
+        "android/hardware/memtrack/1.0/types.cpp",
+        "android/hardware/memtrack/1.0/MemtrackAll.cpp",
+    ],
+}
+
+genrule {
+    name: "android.hardware.memtrack@1.0_genc++_headers",
+    tool: "hidl-gen",
+    cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.memtrack@1.0",
+    srcs: [
+        "types.hal",
+        "IMemtrack.hal",
+    ],
+    out: [
+        "android/hardware/memtrack/1.0/types.h",
+        "android/hardware/memtrack/1.0/IMemtrack.h",
+        "android/hardware/memtrack/1.0/IHwMemtrack.h",
+        "android/hardware/memtrack/1.0/BnMemtrack.h",
+        "android/hardware/memtrack/1.0/BpMemtrack.h",
+        "android/hardware/memtrack/1.0/BsMemtrack.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.memtrack@1.0",
+    generated_sources: ["android.hardware.memtrack@1.0_genc++"],
+    generated_headers: ["android.hardware.memtrack@1.0_genc++_headers"],
+    export_generated_headers: ["android.hardware.memtrack@1.0_genc++_headers"],
+    shared_libs: [
+        "libhidl",
+        "libhwbinder",
+        "libutils",
+        "libcutils",
+    ],
+}
diff --git a/memtrack/1.0/Android.mk b/memtrack/1.0/Android.mk
new file mode 100644
index 0000000..4abe505
--- /dev/null
+++ b/memtrack/1.0/Android.mk
@@ -0,0 +1,204 @@
+# This file is autogenerated by hidl-gen. Do not edit manually.
+
+LOCAL_PATH := $(call my-dir)
+
+################################################################################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.memtrack@1.0-java
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+intermediates := $(local-generated-sources-dir)
+
+HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
+
+#
+# Build types.hal (MemtrackFlag)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackFlag.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackFlag
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackRecord)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackRecord.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackRecord
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackStatus)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackStatus.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackStatus
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackType)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IMemtrack.hal
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/IMemtrack.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IMemtrack.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::IMemtrack
+
+$(GEN): $(LOCAL_PATH)/IMemtrack.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+include $(BUILD_JAVA_LIBRARY)
+
+
+################################################################################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.memtrack@1.0-java-static
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+intermediates := $(local-generated-sources-dir)
+
+HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
+
+#
+# Build types.hal (MemtrackFlag)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackFlag.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackFlag
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackRecord)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackRecord.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackRecord
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackStatus)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackStatus.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackStatus
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemtrackType)
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/MemtrackType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::types.MemtrackType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IMemtrack.hal
+#
+GEN := $(intermediates)/android/hardware/memtrack/1.0/IMemtrack.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IMemtrack.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.memtrack@1.0::IMemtrack
+
+$(GEN): $(LOCAL_PATH)/IMemtrack.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/memtrack/1.0/IMemtrack.hal b/memtrack/1.0/IMemtrack.hal
new file mode 100644
index 0000000..064f2fe
--- /dev/null
+++ b/memtrack/1.0/IMemtrack.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 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.
+ */
+
+package android.hardware.memtrack@1.0;
+
+/*
+ * The Memory Tracker HAL is designed to return information about
+ * device-specific memory usage.
+ * The primary goal is to be able to track memory that is not
+ * trackable in any other way, for example texture memory that is allocated by
+ * a process, but not mapped in to that process's address space.
+ * A secondary goal is to be able to categorize memory used by a process into
+ * GL, graphics, etc. All memory sizes must be in real memory usage,
+ * accounting for stride, bit depth, rounding up to page size, etc.
+ *
+ * Constructor for the interface should be used to perform memtrack management
+ * setup actions and is called once before any calls to getMemory().
+ */
+interface IMemtrack {
+    /*
+     * getMemory() populates MemtrackRecord vector with the sizes of memory
+     * plus associated flags for that memory.
+     *
+     * This function must be thread-safe, it may get called from multiple
+     * threads at the same time.
+     *
+     * A process collecting memory statistics will call getMemory for each
+     * combination of pid and memory type. For each memory type that it
+     * recognizes, the HAL must fill out an array of memtrack_record
+     * structures breaking down the statistics of that memory type as much as
+     * possible. For example,
+     * getMemory(<pid>, GL) might return:
+     * { { 4096,  ACCOUNTED | PRIVATE | SYSTEM },
+     *   { 40960, UNACCOUNTED | PRIVATE | SYSTEM },
+     *   { 8192,  ACCOUNTED | PRIVATE | DEDICATED },
+     *   { 8192,  UNACCOUNTED | PRIVATE | DEDICATED } }
+     * If the HAL cannot differentiate between SYSTEM and DEDICATED memory, it
+     * could return:
+     * { { 12288,  ACCOUNTED | PRIVATE },
+     *   { 49152,  UNACCOUNTED | PRIVATE } }
+     *
+     * Memory must not overlap between types. For example, a graphics buffer
+     * that has been mapped into the GPU as a surface must show up when
+     * GRAPHICS is requested and not when GL
+     * is requested.
+     *
+     * @param pid process for which memory infromation is requested
+     * @param type memory type that information is being requested about
+     * @return records vector of MemtrackRecord containing memory information
+     * @return retval SUCCESS on success, TYPE_NOT_FOUND if the type is not
+     * supported.
+     */
+    getMemory(int32_t pid, MemtrackType type)
+            generates (MemtrackStatus retval, vec<MemtrackRecord> records);
+};
diff --git a/memtrack/1.0/types.hal b/memtrack/1.0/types.hal
new file mode 100644
index 0000000..3d702b3
--- /dev/null
+++ b/memtrack/1.0/types.hal
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 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.
+ */
+
+package android.hardware.memtrack@1.0;
+
+/*
+ * SMAPS_ACCOUNTED/SMAPS_UNACCOUNTED
+ * Flags to differentiate memory that can already be accounted for in
+ * /proc/<pid>/smaps,
+ * (Shared_Clean + Shared_Dirty + Private_Clean + Private_Dirty = Size).
+ * In general, memory mapped in to a userspace process is accounted unless
+ * it was mapped with remap_pfn_range.
+ * Exactly one of these must be set.
+ *
+ * SHARED/SHARED_PSS/PRIVATE
+ * Flags to differentiate memory shared across multiple processes vs. memory
+ * used by a single process.
+ * If SHARED_PSS flags is used, the memory must be divided by the number of
+ * processes holding reference to it (shared / num_processes).
+ * Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count shared + private memory.
+ *
+ * SYSTEM/DEDICATED
+ * Flags to differentiate memory taken from the kernel's allocation pool vs.
+ * memory that is dedicated to non-kernel allocations, for example a carveout
+ * or separate video memory.  Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count system + dedicated memory.
+ *
+ * NONSECURE/SECURE
+ * Flags to differentiate memory accessible by the CPU in non-secure mode vs.
+ * memory that is protected.  Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count secure + nonsecure memory.
+ */
+enum MemtrackFlag : uint32_t {
+    SMAPS_ACCOUNTED = 1 << 1,
+    SMAPS_UNACCOUNTED = 1 << 2,
+    SHARED = 1 << 3,
+    SHARED_PSS = 1 << 4,
+    PRIVATE = 1 << 5,
+    SYSTEM = 1 << 6,
+    DEDICATED = 1 << 7,
+    NONSECURE = 1 << 8,
+    SECURE = 1 << 9,
+};
+
+/* Tags which define the usage of the memory buffers. */
+enum MemtrackType : uint32_t {
+    OTHER = 0,
+    GL = 1,
+    GRAPHICS = 2,
+    MULTIMEDIA = 3,
+    CAMERA = 4,
+    NUM_TYPES,
+};
+
+enum MemtrackStatus : uint32_t {
+    SUCCESS = 0,
+    MEMORY_TRACKING_NOT_SUPPORTED = 1,
+    TYPE_NOT_SUPPORTED = 2,
+};
+
+/* A vector of MemtrackRecord is returned by the function getMemory().
+ * Each record consists of the size of the memory used by the process and
+ * flags indicate the all the MemtrackFlag that are valid for this record.
+ * see getMemory() comments for further details.
+ */
+struct MemtrackRecord {
+    uint64_t sizeInBytes;
+    /*
+     * This is the bitfield for the MemtrackFlag indicating all the flags that
+     * are valid for this record.
+     */
+    uint32_t flags;
+};