diff --git a/sdm/.clang-format b/.clang-format
similarity index 100%
rename from sdm/.clang-format
rename to .clang-format
diff --git a/Android.mk b/Android.mk
index 6eef2fc..226e8a0 100644
--- a/Android.mk
+++ b/Android.mk
@@ -3,7 +3,7 @@
 
 ifneq ($(TARGET_IS_HEADLESS), true)
     display-hals += libcopybit liblight libmemtrack hdmi_cec \
-                    $(sdm-libs)/hwc $(sdm-libs)/hwc2 gpu_tonemapper
+                    $(sdm-libs)/hwc $(sdm-libs)/hwc2 gpu_tonemapper libdrmutils
 endif
 
 ifneq ($(TARGET_USES_GRALLOC1), true)
diff --git a/common.mk b/common.mk
index 1044238..f105330 100644
--- a/common.mk
+++ b/common.mk
@@ -4,6 +4,9 @@
 #Common C flags
 common_flags := -DDEBUG_CALC_FPS -Wno-missing-field-initializers
 common_flags += -Wconversion -Wall -Werror -std=c++11
+ifneq ($(TARGET_IS_HEADLESS), true)
+    common_flags += -DCOMPILE_DRM
+endif
 
 ifeq ($(TARGET_USES_COLOR_METADATA), true)
 common_flags += -DUSE_COLOR_METADATA
@@ -28,6 +31,7 @@
 common_includes += $(display_top)/gpu_tonemapper
 ifneq ($(TARGET_IS_HEADLESS), true)
     common_includes += $(display_top)/libcopybit
+    common_includes += $(display_top)/libdrmutils
 endif
 
 common_includes += $(display_top)/include
@@ -60,10 +64,6 @@
     common_flags += -D__ARM_HAVE_NEON
 endif
 
-ifeq ($(call is-board-platform-in-list, $(MSM_VIDC_TARGET_LIST)), true)
-    common_flags += -DVENUS_COLOR_FORMAT
-endif
-
 ifeq ($(call is-board-platform-in-list, $(MASTER_SIDE_CP_TARGET_LIST)), true)
     common_flags += -DMASTER_SIDE_CP
 endif
diff --git a/gpu_tonemapper/Android.mk b/gpu_tonemapper/Android.mk
index 4f716d2..5d1f9a9 100644
--- a/gpu_tonemapper/Android.mk
+++ b/gpu_tonemapper/Android.mk
@@ -10,6 +10,7 @@
 LOCAL_MODULE              := libgpu_tonemapper
 LOCAL_MODULE_TAGS         := optional
 LOCAL_C_INCLUDES          := $(TARGET_OUT_HEADERS)/qcom/display/
+LOCAL_C_INCLUDES          += $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include
 
 LOCAL_CFLAGS              := $(version_flag) -Wno-missing-field-initializers -Wall \
                              -Wno-unused-parameter -std=c++11 -DLOG_TAG=\"GPU_TONEMAPPER\"
diff --git a/gpu_tonemapper/EGLImageWrapper.cpp b/gpu_tonemapper/EGLImageWrapper.cpp
index 1d5d57e..84f4343 100644
--- a/gpu_tonemapper/EGLImageWrapper.cpp
+++ b/gpu_tonemapper/EGLImageWrapper.cpp
@@ -21,21 +21,101 @@
 #include <cutils/native_handle.h>
 #include <gralloc_priv.h>
 #include <ui/GraphicBuffer.h>
+#include <fcntl.h>
+#include <linux/msm_ion.h>
 
 //-----------------------------------------------------------------------------
-EGLImageBuffer *EGLImageWrapper::wrap(const void *pvt_handle)
+void free_ion_cookie(int ion_fd, int cookie)
 //-----------------------------------------------------------------------------
 {
-  const private_handle_t *src = static_cast<const private_handle_t *>(pvt_handle);
+  if (ion_fd && !ioctl(ion_fd, ION_IOC_FREE, &cookie)) {
+  } else {
+      ALOGE("ION_IOC_FREE failed: ion_fd = %d, cookie = %d", ion_fd, cookie);
+  }
+}
 
-  EGLImageBuffer *result = 0;
-  std::map<int, EGLImageBuffer *>::iterator it = eglImageBufferMap.find(src->fd);
-  if (it == eglImageBufferMap.end()) {
+//-----------------------------------------------------------------------------
+int get_ion_cookie(int ion_fd, int fd)
+//-----------------------------------------------------------------------------
+{
+   int cookie = fd;
+
+   struct ion_fd_data fdData;
+   memset(&fdData, 0, sizeof(fdData));
+   fdData.fd = fd;
+
+   if (ion_fd && !ioctl(ion_fd, ION_IOC_IMPORT, &fdData)) {
+        cookie = fdData.handle;
+   } else {
+        ALOGE("ION_IOC_IMPORT failed: ion_fd = %d, fd = %d", ion_fd, fd);
+   }
+
+   return cookie;
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::DeleteEGLImageCallback::DeleteEGLImageCallback(int fd)
+//-----------------------------------------------------------------------------
+{
+    ion_fd = fd;
+}
+
+//-----------------------------------------------------------------------------
+void EGLImageWrapper::DeleteEGLImageCallback::operator()(int& k, EGLImageBuffer*& eglImage)
+//-----------------------------------------------------------------------------
+{
+    free_ion_cookie(ion_fd,  k);
+    if( eglImage != 0 )
+    {
+        delete eglImage;
+    }
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::EGLImageWrapper()
+//-----------------------------------------------------------------------------
+{
+    eglImageBufferMap = new android::LruCache<int, EGLImageBuffer*>(32);
+    ion_fd = open("/dev/ion", O_RDONLY);
+    callback = new DeleteEGLImageCallback(ion_fd);
+    eglImageBufferMap->setOnEntryRemovedListener(callback);
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::~EGLImageWrapper()
+//-----------------------------------------------------------------------------
+{
+    if( eglImageBufferMap != 0 )
+    {
+        eglImageBufferMap->clear();
+        delete eglImageBufferMap;
+        eglImageBufferMap = 0;
+    }
+
+    if( callback != 0 )
+    {
+        delete callback;
+        callback = 0;
+    }
+
+    if( ion_fd > 0 )
+    {
+        close(ion_fd);
+    }
+    ion_fd = -1;
+}
+//-----------------------------------------------------------------------------
+static EGLImageBuffer* L_wrap(const private_handle_t *src)
+//-----------------------------------------------------------------------------
+{
+    EGLImageBuffer* result = 0;
+
     native_handle_t *native_handle = const_cast<private_handle_t *>(src);
 
     int flags = android::GraphicBuffer::USAGE_HW_TEXTURE |
                 android::GraphicBuffer::USAGE_SW_READ_NEVER |
                 android::GraphicBuffer::USAGE_SW_WRITE_NEVER;
+
     if (src->flags & private_handle_t::PRIV_FLAGS_SECURE_BUFFER) {
       flags |= android::GraphicBuffer::USAGE_PROTECTED;
     }
@@ -50,21 +130,25 @@
 
     result = new EGLImageBuffer(graphicBuffer);
 
-    eglImageBufferMap[src->fd] = result;
-  } else {
-    result = it->second;
-  }
-
-  return result;
+    return result;
 }
 
 //-----------------------------------------------------------------------------
-void EGLImageWrapper::destroy()
+EGLImageBuffer *EGLImageWrapper::wrap(const void *pvt_handle)
 //-----------------------------------------------------------------------------
 {
-  std::map<int, EGLImageBuffer *>::iterator it = eglImageBufferMap.begin();
-  for (; it != eglImageBufferMap.end(); it++) {
-    delete it->second;
-  }
-  eglImageBufferMap.clear();
+    const private_handle_t *src = static_cast<const private_handle_t *>(pvt_handle);
+
+    int ion_cookie = get_ion_cookie(ion_fd, src->fd);
+    EGLImageBuffer* eglImage = eglImageBufferMap->get(ion_cookie);
+    if( eglImage == 0 )
+    {
+        eglImage = L_wrap(src);
+        eglImageBufferMap->put(ion_cookie, eglImage);
+    }
+    else {
+        free_ion_cookie(ion_fd, ion_cookie);
+    }
+
+    return eglImage;
 }
diff --git a/gpu_tonemapper/EGLImageWrapper.h b/gpu_tonemapper/EGLImageWrapper.h
index 90aaf58..e9a4d68 100644
--- a/gpu_tonemapper/EGLImageWrapper.h
+++ b/gpu_tonemapper/EGLImageWrapper.h
@@ -20,15 +20,28 @@
 #ifndef __TONEMAPPER_EGLIMAGEWRAPPER_H__
 #define __TONEMAPPER_EGLIMAGEWRAPPER_H__
 
-#include <map>
+#include <utils/LruCache.h>
 #include "EGLImageBuffer.h"
 
 class EGLImageWrapper {
-  std::map<int, EGLImageBuffer *> eglImageBufferMap;
+    private:
+        class DeleteEGLImageCallback : public android::OnEntryRemoved<int, EGLImageBuffer*>
+        {
+        private:
+          int ion_fd;
+        public:
+          DeleteEGLImageCallback(int ion_fd);
+          void operator()(int& ion_cookie, EGLImageBuffer*& eglImage);
+        };
 
- public:
-  EGLImageBuffer *wrap(const void *pvt_handle);
-  void destroy();
+        android::LruCache<int, EGLImageBuffer *>* eglImageBufferMap;
+        DeleteEGLImageCallback* callback;
+        int ion_fd;
+
+    public:
+        EGLImageWrapper();
+        ~EGLImageWrapper();
+        EGLImageBuffer* wrap(const void *pvt_handle);
 };
 
 #endif  //__TONEMAPPER_EGLIMAGEWRAPPER_H__
diff --git a/gpu_tonemapper/TonemapFactory.cpp b/gpu_tonemapper/TonemapFactory.cpp
index cffc33a..5aae697 100644
--- a/gpu_tonemapper/TonemapFactory.cpp
+++ b/gpu_tonemapper/TonemapFactory.cpp
@@ -27,19 +27,8 @@
                                           void *lutXform, int lutXformSize)
 //----------------------------------------------------------------------------------------------------------------------------------------------------------
 {
-  // initializes the engine - does nothing if already initialized
-  engine_initialize();
-
   // build the tonemapper
   Tonemapper *tonemapper = Tonemapper::build(type, colorMap, colorMapSize, lutXform, lutXformSize);
 
   return tonemapper;
 }
-
-//------------------------------------------
-void TonemapperFactory_Destroy()
-//------------------------------------------
-{
-  // shutdown the engine
-  engine_shutdown();
-}
diff --git a/gpu_tonemapper/TonemapFactory.h b/gpu_tonemapper/TonemapFactory.h
index 1004170..404f4cd 100644
--- a/gpu_tonemapper/TonemapFactory.h
+++ b/gpu_tonemapper/TonemapFactory.h
@@ -30,9 +30,6 @@
 Tonemapper *TonemapperFactory_GetInstance(int type, void *colorMap, int colorMapSize,
                                           void *lutXform, int lutXformSize);
 
-// destroy tonemap session
-void TonemapperFactory_Destroy();
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/gpu_tonemapper/Tonemapper.cpp b/gpu_tonemapper/Tonemapper.cpp
index bb7ba1b..ec74b80 100644
--- a/gpu_tonemapper/Tonemapper.cpp
+++ b/gpu_tonemapper/Tonemapper.cpp
@@ -39,17 +39,18 @@
 Tonemapper::~Tonemapper()
 //-----------------------------------------------------------------------------
 {
-  engine_bind();
+  engine_bind(engineContext);
   engine_deleteInputBuffer(tonemapTexture);
   engine_deleteInputBuffer(lutXformTexture);
   engine_deleteProgram(programID);
 
   // clear EGLImage mappings
   if (eglImageWrapper != 0) {
-    eglImageWrapper->destroy();
     delete eglImageWrapper;
     eglImageWrapper = 0;
   }
+
+  engine_shutdown(engineContext);
 }
 
 //-----------------------------------------------------------------------------
@@ -61,10 +62,14 @@
       ALOGE("Invalid Color Map size = %d", colorMapSize);
       return NULL;
   }
-  engine_bind();
 
   // build new tonemapper
   Tonemapper *tonemapper = new Tonemapper();
+
+  tonemapper->engineContext = engine_initialize();
+
+  engine_bind(tonemapper->engineContext);
+
   // load the 3d lut
   tonemapper->tonemapTexture = engine_load3DTexture(colorMap, colorMapSize, 0);
   // load the non-uniform xform
@@ -101,7 +106,7 @@
 //-----------------------------------------------------------------------------
 {
   // make current
-  engine_bind();
+  engine_bind(engineContext);
 
   // create eglimages if required
   EGLImageBuffer *dst_buffer = eglImageWrapper->wrap(dst);
diff --git a/gpu_tonemapper/Tonemapper.h b/gpu_tonemapper/Tonemapper.h
index 0f9bd51..1d6f808 100644
--- a/gpu_tonemapper/Tonemapper.h
+++ b/gpu_tonemapper/Tonemapper.h
@@ -24,9 +24,11 @@
 #define TONEMAP_INVERSE 1
 
 #include "EGLImageWrapper.h"
+#include "engine.h"
 
 class Tonemapper {
  private:
+  void* engineContext;
   unsigned int tonemapTexture;
   unsigned int lutXformTexture;
   unsigned int programID;
diff --git a/gpu_tonemapper/engine.h b/gpu_tonemapper/engine.h
index 5635ee3..ca914b2 100644
--- a/gpu_tonemapper/engine.h
+++ b/gpu_tonemapper/engine.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright 2015 The Android Open Source Project
@@ -20,9 +20,9 @@
 #ifndef __TONEMAPPER_ENGINE_H__
 #define __TONEMAPPER_ENGINE_H__
 
-bool engine_initialize();
-void engine_bind();
-void engine_shutdown();
+void* engine_initialize();
+void engine_bind(void*);
+void engine_shutdown(void*);
 
 unsigned int engine_loadProgram(int, const char **, int, const char **);
 void engine_setProgram(int);
@@ -39,4 +39,4 @@
 
 int engine_blit(int);
 
-#endif  //__TONEMAPPER_ENGINE_H__
\ No newline at end of file
+#endif  //__TONEMAPPER_ENGINE_H__
diff --git a/gpu_tonemapper/glengine.cpp b/gpu_tonemapper/glengine.cpp
index e5c8e68..eda4e6b 100644
--- a/gpu_tonemapper/glengine.cpp
+++ b/gpu_tonemapper/glengine.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright 2015 The Android Open Source Project
@@ -24,37 +24,42 @@
 void checkGlError(const char *, int);
 void checkEglError(const char *, int);
 
-static EGLDisplay eglDisplay;
-static EGLContext eglContext;
-static EGLSurface eglSurface;
-
-static bool isEngineInitialized = false;
+class EngineContext {
+    public:
+    EGLDisplay eglDisplay;
+    EGLContext eglContext;
+    EGLSurface eglSurface;
+    EngineContext()
+    {
+        eglDisplay = EGL_NO_DISPLAY;
+        eglContext = EGL_NO_CONTEXT;
+        eglSurface = EGL_NO_SURFACE;
+    }
+};
 
 //-----------------------------------------------------------------------------
 // Make Current
-void engine_bind()
+void engine_bind(void* context)
 //-----------------------------------------------------------------------------
 {
-  EGL(eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext));
+  EngineContext* engineContext = (EngineContext*)(context);
+  EGL(eglMakeCurrent(engineContext->eglDisplay, engineContext->eglSurface, engineContext->eglSurface, engineContext->eglContext));
 }
 
 //-----------------------------------------------------------------------------
 // initialize GL
 //
-bool engine_initialize()
+void* engine_initialize()
 //-----------------------------------------------------------------------------
 {
-  if (isEngineInitialized)
-    return true;
-
-  EGLBoolean result = false;
+  EngineContext* engineContext = new EngineContext();
 
   // display
-  eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+  engineContext->eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
   EGL(eglBindAPI(EGL_OPENGL_ES_API));
 
   // initialize
-  EGL(eglInitialize(eglDisplay, 0, 0));
+  EGL(eglInitialize(engineContext->eglDisplay, 0, 0));
 
   // config
   EGLConfig eglConfig;
@@ -65,38 +70,36 @@
                                   EGL_ALPHA_SIZE,   8,
                                   EGL_NONE};
   int numConfig = 0;
-  EGL(eglChooseConfig(eglDisplay, eglConfigAttribList, &eglConfig, 1, &numConfig));
+  EGL(eglChooseConfig(engineContext->eglDisplay, eglConfigAttribList, &eglConfig, 1, &numConfig));
 
   // context
   EGLint eglContextAttribList[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE};
-  eglContext = eglCreateContext(eglDisplay, eglConfig, NULL, eglContextAttribList);
+  engineContext->eglContext = eglCreateContext(engineContext->eglDisplay, eglConfig, NULL, eglContextAttribList);
 
   // surface
   EGLint eglSurfaceAttribList[] = {EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE, EGL_NONE};
-  eglSurface = eglCreatePbufferSurface(eglDisplay, eglConfig, eglSurfaceAttribList);
+  engineContext->eglSurface = eglCreatePbufferSurface(engineContext->eglDisplay, eglConfig, eglSurfaceAttribList);
 
-  result = (EGL_TRUE == eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext));
+  eglMakeCurrent(engineContext->eglDisplay, engineContext->eglSurface, engineContext->eglSurface, engineContext->eglContext);
 
-  isEngineInitialized = result;
+  ALOGI("In %s context = %p", __FUNCTION__, (void *)(engineContext->eglContext));
 
-  ALOGI("In %s result = %d context = %p", __FUNCTION__, result, (void *)eglContext);
-
-  return result;
+  return (void*)(engineContext);
 }
 
 //-----------------------------------------------------------------------------
 // Shutdown.
-void engine_shutdown()
+void engine_shutdown(void* context)
 //-----------------------------------------------------------------------------
 {
-  EGL(eglMakeCurrent(eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
-  EGL(eglDestroySurface(eglDisplay, eglSurface));
-  EGL(eglDestroyContext(eglDisplay, eglContext));
-  EGL(eglTerminate(eglDisplay));
-  eglDisplay = EGL_NO_DISPLAY;
-  eglContext = EGL_NO_CONTEXT;
-  eglSurface = EGL_NO_SURFACE;
-  isEngineInitialized = false;
+  EngineContext* engineContext = (EngineContext*)context;
+  EGL(eglMakeCurrent(engineContext->eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
+  EGL(eglDestroySurface(engineContext->eglDisplay, engineContext->eglSurface));
+  EGL(eglDestroyContext(engineContext->eglDisplay, engineContext->eglContext));
+  EGL(eglTerminate(engineContext->eglDisplay));
+  engineContext->eglDisplay = EGL_NO_DISPLAY;
+  engineContext->eglContext = EGL_NO_CONTEXT;
+  engineContext->eglSurface = EGL_NO_SURFACE;
 }
 
 //-----------------------------------------------------------------------------
@@ -158,7 +161,7 @@
 void dumpShaderLog(int shader)
 //-----------------------------------------------------------------------------
 {
-  int success;
+  int success = 0;
   GLchar infoLog[512];
   GL(glGetShaderiv(shader, GL_COMPILE_STATUS, &success));
   if (!success) {
@@ -206,14 +209,14 @@
   if (fd != -1) {
     EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fd, EGL_NONE};
 
-    EGLSyncKHR sync = eglCreateSyncKHR(eglDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
+    EGLSyncKHR sync = eglCreateSyncKHR(eglGetCurrentDisplay(), EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
 
     if (sync == EGL_NO_SYNC_KHR) {
       ALOGE("%s - Failed to Create sync from source fd", __FUNCTION__);
     } else {
       // the gpu will wait for this sync - not this cpu thread.
-      EGL(eglWaitSyncKHR(eglDisplay, sync, 0));
-      EGL(eglDestroySyncKHR(eglDisplay, sync));
+      EGL(eglWaitSyncKHR(eglGetCurrentDisplay(), sync, 0));
+      EGL(eglDestroySyncKHR(eglGetCurrentDisplay(), sync));
     }
   }
 }
@@ -224,16 +227,16 @@
 {
   int fd = -1;
 
-  EGLSyncKHR sync = eglCreateSyncKHR(eglDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
+  EGLSyncKHR sync = eglCreateSyncKHR(eglGetCurrentDisplay(), EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
   GL(glFlush());
   if (sync == EGL_NO_SYNC_KHR) {
     ALOGE("%s - Failed to Create Native Fence sync", __FUNCTION__);
   } else {
-    fd = eglDupNativeFenceFDANDROID(eglDisplay, sync);
+    fd = eglDupNativeFenceFDANDROID(eglGetCurrentDisplay(), sync);
     if (fd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
       ALOGE("%s - Failed to dup sync", __FUNCTION__);
     }
-    EGL(eglDestroySyncKHR(eglDisplay, sync));
+    EGL(eglDestroySyncKHR(eglGetCurrentDisplay(), sync));
   }
 
   return fd;
diff --git a/libcopybit/copybit.cpp b/libcopybit/copybit.cpp
index 10f5943..80b3cfe 100644
--- a/libcopybit/copybit.cpp
+++ b/libcopybit/copybit.cpp
@@ -148,6 +148,8 @@
         case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS: return MDP_Y_CBCR_H2V2_VENUS;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS: return MDP_Y_CRCB_H2V2_VENUS;
         case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: return MDP_Y_CBCR_H2V2;
+        case HAL_PIXEL_FORMAT_CbYCrY_422_I: return MDP_CBYCRY_H2V1;
+        case HAL_PIXEL_FORMAT_BGR_888: return MDP_BGR_888;
     }
     return -1;
 }
diff --git a/libdrmutils/Android.mk b/libdrmutils/Android.mk
new file mode 100644
index 0000000..8d9205d
--- /dev/null
+++ b/libdrmutils/Android.mk
@@ -0,0 +1,16 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE                  := libdrmutils
+LOCAL_MODULE_TAGS             := optional
+LOCAL_C_INCLUDES              := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include \
+                                 external/libdrm
+LOCAL_SHARED_LIBRARIES        := libdrm libdl
+LOCAL_CFLAGS                  := -DLOG_TAG=\"DRMUTILS\" -Wall -std=c++11 -Werror
+LOCAL_CLANG                   := true
+LOCAL_ADDITIONAL_DEPENDENCIES := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
+LOCAL_SRC_FILES               := drm_master.cpp drm_res_mgr.cpp drm_lib_loader.cpp
+LOCAL_COPY_HEADERS_TO         := qcom/display
+LOCAL_COPY_HEADERS            := drm_master.h drm_res_mgr.h drm_lib_loader.h drm_logger.h drm_interface.h
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libdrmutils/drm_interface.h b/libdrmutils/drm_interface.h
new file mode 100644
index 0000000..6c06e20
--- /dev/null
+++ b/libdrmutils/drm_interface.h
@@ -0,0 +1,370 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_INTERFACE_H__
+#define __DRM_INTERFACE_H__
+
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "xf86drm.h"
+#include "xf86drmMode.h"
+
+namespace sde_drm {
+/*
+ * Drm Atomic Operation Codes
+ */
+enum struct DRMOps {
+  /*
+   * Op: Sets plane source crop
+   * Arg: uint32_t - Plane ID
+   *      DRMRect  - Source Rectangle
+   */
+  PLANE_SET_SRC_RECT,
+  /*
+   * Op: Sets plane destination rect
+   * Arg: uint32_t - Plane ID
+   *      DRMRect - Dst Rectangle
+   */
+  PLANE_SET_DST_RECT,
+  /*
+   * Op: Sets plane zorder
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - zorder
+   */
+  PLANE_SET_ZORDER,
+  /*
+   * Op: Sets plane rotation flags
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - bit mask of rotation flags (See drm_mode.h for enums)
+   */
+  PLANE_SET_ROTATION,
+  /*
+   * Op: Sets plane alpha
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - alpha value
+   */
+  PLANE_SET_ALPHA,
+  /*
+   * Op: Sets the blend type
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - blend type (see DRMBlendType)
+   */
+  PLANE_SET_BLEND_TYPE,
+  /*
+   * Op: Sets horizontal decimation
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - decimation factor
+   */
+  PLANE_SET_H_DECIMATION,
+  /*
+   * Op: Sets vertical decimation
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - decimation factor
+   */
+  PLANE_SET_V_DECIMATION,
+  /*
+   * Op: Sets frame buffer ID for plane. Set together with CRTC.
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - Framebuffer ID
+   */
+  PLANE_SET_FB_ID,
+  /*
+   * Op: Sets the crtc for this plane. Set together with FB_ID.
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - CRTC ID
+   */
+  PLANE_SET_CRTC,
+  /*
+   * Op: Sets acquire fence for this plane's buffer. Set together with FB_ID, CRTC.
+   * Arg: uint32_t - Plane ID
+   *      uint32_t - Input fence
+   */
+  PLANE_SET_INPUT_FENCE,
+  /*
+   * Op: Activate or deactivate a CRTC
+   * Arg: uint32_t - CRTC ID
+   *      uint32_t - 1 to enable, 0 to disable
+   */
+  CRTC_SET_ACTIVE,
+  /*
+   * Op: Sets display mode
+   * Arg: uint32_t - CRTC ID
+   *      drmModeModeInfo* - Pointer to display mode
+   */
+  CRTC_SET_MODE,
+  /*
+   * Op: Sets an offset indicating when a release fence should be signalled.
+   * Arg: uint32_t - offset
+   *      0: non-speculative, default
+   *      1: speculative
+   */
+  CRTC_SET_OUTPUT_FENCE_OFFSET,
+  /*
+   * Op: Returns release fence for this frame. Should be called after Commit() on
+   * DRMAtomicReqInterface.
+   * Arg: uint32_t - CRTC ID
+   *      int * - Pointer to an integer that will hold the returned fence
+   */
+  CRTC_GET_RELEASE_FENCE,
+  /*
+   * Op: Returns retire fence for this commit. Should be called after Commit() on
+   * DRMAtomicReqInterface.
+   * Arg: uint32_t - Connector ID
+   *      int * - Pointer to an integer that will hold the returned fence
+   */
+  CONNECTOR_GET_RETIRE_FENCE,
+  /*
+   * Op: Sets writeback connector destination rect
+   * Arg: uint32_t - Connector ID
+   *      DRMRect - Dst Rectangle
+   */
+  CONNECTOR_SET_OUTPUT_RECT,
+  /*
+   * Op: Sets frame buffer ID for writeback connector.
+   * Arg: uint32_t - Connector ID
+   *      uint32_t - Framebuffer ID
+   */
+  CONNECTOR_SET_OUTPUT_FB_ID,
+};
+
+enum struct DRMBlendType {
+  UNDEFINED = 0,
+  OPAQUE = 1,
+  PREMULTIPLIED = 2,
+  COVERAGE = 3,
+};
+
+/* Display type to identify a suitable connector */
+enum struct DRMDisplayType {
+  PERIPHERAL,
+  TV,
+  VIRTUAL,
+};
+
+struct DRMRect {
+  uint32_t left;    // Left-most pixel coordinate.
+  uint32_t top;     // Top-most pixel coordinate.
+  uint32_t right;   // Right-most pixel coordinate.
+  uint32_t bottom;  // Bottom-most pixel coordinate.
+};
+
+//------------------------------------------------------------------------
+// DRM Info Query Types
+//------------------------------------------------------------------------
+
+enum struct QSEEDVersion {
+  V1,
+  V2,
+  V3,
+};
+
+/* Per CRTC Resource Info*/
+struct DRMCrtcInfo {
+  bool has_src_split;
+  uint32_t max_blend_stages;
+  QSEEDVersion qseed_version;
+};
+
+enum struct DRMPlaneType {
+  // Has CSC and scaling capability
+  VIG = 0,
+  // Has scaling capability but no CSC
+  RGB,
+  // No scaling support
+  DMA,
+  // Supports a small dimension and doesn't use a CRTC stage
+  CURSOR,
+  MAX,
+};
+
+struct DRMPlaneTypeInfo {
+  // FourCC format enum and modifier
+  std::vector<std::pair<uint32_t, uint64_t>> formats_supported;
+  uint32_t max_linewidth;
+  uint32_t max_upscale;
+  uint32_t max_downscale;
+  uint32_t max_horizontal_deci;
+  uint32_t max_vertical_deci;
+};
+
+/* All DRM Planes Info*/
+struct DRMPlanesInfo {
+  // Plane id and plane type sorted by highest to lowest priority
+  std::vector<std::pair<uint32_t, DRMPlaneType>> planes;
+  // Plane type and type info
+  std::map<DRMPlaneType, DRMPlaneTypeInfo> types;
+};
+
+enum struct DRMTopology {
+  UNKNOWN,  // To be compat with driver defs in sde_kms.h
+  SINGLE_LM,
+  DUAL_LM,
+  PPSPLIT,
+  DUAL_LM_MERGE,
+};
+
+enum struct DRMPanelMode {
+  VIDEO,
+  COMMAND,
+};
+
+/* Per Connector Info*/
+struct DRMConnectorInfo {
+  uint32_t mmWidth;
+  uint32_t mmHeight;
+  uint32_t type;
+  uint32_t num_modes;
+  drmModeModeInfo *modes;
+  DRMTopology topology;
+  std::string panel_name;
+  DRMPanelMode panel_mode;
+  bool is_primary;
+  // Valid only if DRMPanelMode is VIDEO
+  bool dynamic_fps;
+  // FourCC format enum and modifier
+  std::vector<std::pair<uint32_t, uint64_t>> formats_supported;
+  // Valid only if type is DRM_MODE_CONNECTOR_VIRTUAL
+  uint32_t max_linewidth;
+};
+
+/* Identifier token for a display */
+struct DRMDisplayToken {
+  uint32_t conn_id;
+  uint32_t crtc_id;
+};
+
+/* DRM Atomic Request Property Set.
+ *
+ * Helper class to create and populate atomic properties of DRM components
+ * when rendered in DRM atomic mode */
+class DRMAtomicReqInterface {
+ public:
+  virtual ~DRMAtomicReqInterface() {}
+  /* Perform request operation.
+   *
+   * [input]: opcode: operation code from DRMOps list.
+   *          var_arg: arguments for DRMOps's can differ in number and
+   *          data type. Refer above DRMOps to details.
+   * [return]: Error code if the API fails, 0 on success.
+   */
+  virtual int Perform(DRMOps opcode, ...) = 0;
+
+  /*
+   * Commit the params set via Perform(). Also resets the properties after commit. Needs to be
+   * called every frame.
+   * [input]: synchronous: Determines if the call should block until a h/w flip
+   * [return]: Error code if the API fails, 0 on success.
+   */
+  virtual int Commit(bool synchronous) = 0;
+  /*
+   * Validate the params set via Perform().
+   * [return]: Error code if the API fails, 0 on success.
+   */
+  virtual int Validate() = 0;
+};
+
+class DRMManagerInterface;
+
+/* Populates a singleton instance of DRMManager */
+typedef int (*GetDRMManager)(int fd, DRMManagerInterface **intf);
+
+/* Destroy DRMManager instance */
+typedef int (*DestroyDRMManager)(DRMManagerInterface *intf);
+
+/*
+ * DRM Manager Interface - Any class which plans to implement helper function for vendor
+ * specific DRM driver implementation must implement the below interface routines to work
+ * with SDM.
+ */
+
+class DRMManagerInterface {
+ public:
+  virtual ~DRMManagerInterface() {}
+
+  /*
+   * Since SDM completely manages the planes. GetPlanesInfo will provide all
+   * the plane information.
+   * [output]: DRMPlanesInfo: Resource Info for planes.
+   */
+  virtual void GetPlanesInfo(DRMPlanesInfo *info) = 0;
+
+  /*
+   * Will provide all the information of a selected crtc.
+   * [input]: Use crtc id 0 to obtain system wide info
+   * [output]: DRMCrtcInfo: Resource Info for the given CRTC id.
+   */
+  virtual void GetCrtcInfo(uint32_t crtc_id, DRMCrtcInfo *info) = 0;
+
+  /*
+   * Will provide all the information of a selected connector.
+   * [output]: DRMConnectorInfo: Resource Info for the given connector id
+   */
+  virtual void GetConnectorInfo(uint32_t conn_id, DRMConnectorInfo *info) = 0;
+
+  /*
+   * Register a logical display to receive a token.
+   * Each display pipeline in DRM is identified by its CRTC and Connector(s).
+   * On display connect(bootup or hotplug), clients should invoke this interface to
+   * establish the pipeline for the display and should get a DisplayToken
+   * populated with crtc and connnector(s) id's. Here onwards, Client should
+   * use this token to represent the display for any Perform operations if
+   * needed.
+   *
+   * [input]: disp_type - Peripheral / TV / Virtual
+   * [output]: DRMDisplayToken - CRTC and Connector id's for the display
+   * [return]: 0 on success, a negative error value otherwise
+   */
+  virtual int RegisterDisplay(DRMDisplayType disp_type, DRMDisplayToken *tok) = 0;
+
+  /* Client should invoke this interface on display disconnect.
+   * [input]: DRMDisplayToken - identifier for the display.
+   */
+  virtual void UnregisterDisplay(const DRMDisplayToken &token) = 0;
+
+  /*
+   * Creates and returns an instance of DRMAtomicReqInterface corresponding to a display token
+   * returned as part of RegisterDisplay API. Needs to be called per display.
+   * [input]: DRMDisplayToken that identifies a display pipeline
+   * [output]: Pointer to an instance of DRMAtomicReqInterface.
+   * [return]: Error code if the API fails, 0 on success.
+   */
+  virtual int CreateAtomicReq(const DRMDisplayToken &token, DRMAtomicReqInterface **intf) = 0;
+
+  /*
+   * Destroys the instance of DRMAtomicReqInterface
+   * [input]: Pointer to a DRMAtomicReqInterface
+   * [return]: Error code if the API fails, 0 on success.
+   */
+  virtual int DestroyAtomicReq(DRMAtomicReqInterface *intf) = 0;
+};
+}  // namespace sde_drm
+#endif  // __DRM_INTERFACE_H__
diff --git a/libdrmutils/drm_lib_loader.cpp b/libdrmutils/drm_lib_loader.cpp
new file mode 100644
index 0000000..845c150
--- /dev/null
+++ b/libdrmutils/drm_lib_loader.cpp
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <dlfcn.h>
+
+#include "drm_lib_loader.h"
+
+#define __CLASS__ "DRMLibLoader"
+
+using std::mutex;
+using std::lock_guard;
+
+namespace drm_utils {
+
+DRMLibLoader *DRMLibLoader::s_instance = nullptr;
+mutex DRMLibLoader::s_lock;
+
+DRMLibLoader *DRMLibLoader::GetInstance() {
+  lock_guard<mutex> obj(s_lock);
+
+  if (!s_instance) {
+    s_instance = new DRMLibLoader();
+  }
+
+  return s_instance;
+}
+
+DRMLibLoader::DRMLibLoader() {
+  if (Open("libsdedrm.so")) {
+    if (Sym("GetDRMManager", reinterpret_cast<void **>(&func_get_drm_manager_)) &&
+        Sym("DestroyDRMManager", reinterpret_cast<void **>(&func_destroy_drm_manager_))) {
+      is_loaded_ = true;
+    }
+  }
+}
+
+bool DRMLibLoader::Open(const char *lib_name) {
+  lib_ = ::dlopen(lib_name, RTLD_NOW);
+
+  return (lib_ != nullptr);
+}
+
+bool DRMLibLoader::Sym(const char *func_name, void **func_ptr) {
+  if (lib_) {
+    *func_ptr = ::dlsym(lib_, func_name);
+  }
+
+  return (*func_ptr != nullptr);
+}
+
+}  // namespace drm_utils
diff --git a/libdrmutils/drm_lib_loader.h b/libdrmutils/drm_lib_loader.h
new file mode 100644
index 0000000..dbc31a5
--- /dev/null
+++ b/libdrmutils/drm_lib_loader.h
@@ -0,0 +1,63 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_LIB_LOADER_H__
+#define __DRM_LIB_LOADER_H__
+
+#include <drm_interface.h>
+#include <mutex>
+
+namespace drm_utils {
+
+class DRMLibLoader {
+ public:
+  ~DRMLibLoader() {}
+  bool IsLoaded() { return is_loaded_; }
+  sde_drm::GetDRMManager FuncGetDRMManager() { return func_get_drm_manager_; }
+  sde_drm::DestroyDRMManager FuncDestroyDRMManager() { return func_destroy_drm_manager_; }
+
+  static DRMLibLoader *GetInstance();
+
+ private:
+  DRMLibLoader();
+  bool Open(const char *lib_name);
+  bool Sym(const char *func_name, void **func_ptr);
+
+  void *lib_ = {};
+  sde_drm::GetDRMManager func_get_drm_manager_ = {};
+  sde_drm::DestroyDRMManager func_destroy_drm_manager_ = {};
+  bool is_loaded_ = false;
+
+  static DRMLibLoader *s_instance;  // Singleton instance
+  static std::mutex s_lock;
+};
+
+}  // namespace drm_utils
+
+#endif  // __DRM_LIB_LOADER_H__
diff --git a/libdrmutils/drm_logger.h b/libdrmutils/drm_logger.h
new file mode 100644
index 0000000..d0b0773
--- /dev/null
+++ b/libdrmutils/drm_logger.h
@@ -0,0 +1,69 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_LOGGER_H__
+#define __DRM_LOGGER_H__
+
+#include <utility>
+
+namespace drm_utils {
+
+class DRMLogger {
+ public:
+  virtual ~DRMLogger() {}
+  virtual void Error(const char *format, ...) = 0;
+  virtual void Warning(const char *format, ...) = 0;
+  virtual void Info(const char *format, ...) = 0;
+  virtual void Debug(const char *format, ...) = 0;
+
+  static void Set(DRMLogger *logger) { s_instance = logger; }
+  static DRMLogger *Get() { return s_instance; }
+
+ private:
+  static DRMLogger *s_instance;
+};
+
+#define DRM_LOG(method, format, ...)                            \
+  if (drm_utils::DRMLogger::Get()) {                            \
+    drm_utils::DRMLogger::Get()->method(format, ##__VA_ARGS__); \
+  }
+
+#define DRM_LOG_CONTEXT(method, format, ...) \
+  DRM_LOG(method, __CLASS__ "::%s: " format, __FUNCTION__, ##__VA_ARGS__);
+
+#define DRM_LOGE(format, ...) DRM_LOG_CONTEXT(Error, format, ##__VA_ARGS__)
+#define DRM_LOGW(format, ...) DRM_LOG_CONTEXT(Warning, format, ##__VA_ARGS__)
+#define DRM_LOGI(format, ...) DRM_LOG_CONTEXT(Info, format, ##__VA_ARGS__)
+#define DRM_LOGD_IF(pred, format, ...) \
+  if (pred)                            \
+  DRM_LOG_CONTEXT(Debug, format, ##__VA_ARGS__)
+
+}  // namespace drm_utils
+
+#endif  // __DRM_LOGGER_H__
diff --git a/libdrmutils/drm_master.cpp b/libdrmutils/drm_master.cpp
new file mode 100644
index 0000000..46ea24e
--- /dev/null
+++ b/libdrmutils/drm_master.cpp
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <drm/drm_fourcc.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include <algorithm>
+#include <iterator>
+
+#include "drm_master.h"
+
+#define __CLASS__ "DRMMaster"
+
+using std::mutex;
+using std::lock_guard;
+using std::begin;
+using std::copy;
+using std::end;
+using std::fill;
+
+namespace drm_utils {
+
+DRMLogger *DRMLogger::s_instance = nullptr;
+DRMMaster *DRMMaster::s_instance = nullptr;
+mutex DRMMaster::s_lock;
+
+int DRMMaster::GetInstance(DRMMaster **master) {
+  lock_guard<mutex> obj(s_lock);
+
+  if (!s_instance) {
+    s_instance = new DRMMaster();
+    if (s_instance->Init() < 0) {
+      delete s_instance;
+      s_instance = nullptr;
+      return -ENODEV;
+    }
+  }
+
+  *master = s_instance;
+  return 0;
+}
+
+int DRMMaster::Init() {
+  dev_fd_ = drmOpen("msm_drm", nullptr);
+  if (dev_fd_ < 0) {
+    DRM_LOGE("drmOpen failed with error %d", dev_fd_);
+    return -ENODEV;
+  }
+
+  return 0;
+}
+
+DRMMaster::~DRMMaster() {
+  drmClose(dev_fd_);
+  dev_fd_ = -1;
+}
+
+int DRMMaster::CreateFbId(const DRMBuffer &drm_buffer, uint32_t *gem_handle, uint32_t *fb_id) {
+  int ret = drmPrimeFDToHandle(dev_fd_, drm_buffer.fd, gem_handle);
+  if (ret) {
+    DRM_LOGE("drmPrimeFDToHandle failed with error %d", ret);
+    return ret;
+  }
+
+  uint32_t gem_handles[4] = {0};
+  uint32_t pitches[4] = {0};
+  uint32_t offsets[4] = {0};
+  uint64_t modifier[4] = {0};
+
+  fill(begin(gem_handles), begin(gem_handles) + drm_buffer.num_planes, *gem_handle);
+  copy(begin(drm_buffer.stride), end(drm_buffer.stride), begin(pitches));
+  copy(begin(drm_buffer.offset), end(drm_buffer.offset), begin(offsets));
+  fill(begin(modifier), begin(modifier) + drm_buffer.num_planes, drm_buffer.drm_format_modifier);
+
+  ret = drmModeAddFB3(dev_fd_, drm_buffer.width, drm_buffer.height, drm_buffer.drm_format,
+                      gem_handles, pitches, offsets, modifier, fb_id, DRM_MODE_FB_MODIFIERS);
+  if (ret) {
+    DRM_LOGE("drmModeAddFB3 failed with error %d", ret);
+    struct drm_gem_close gem_close = {};
+    gem_close.handle = *gem_handle;
+    int ret1 = drmIoctl(dev_fd_, DRM_IOCTL_GEM_CLOSE, &gem_close);
+    if (ret1) {
+      DRM_LOGE("drmIoctl::DRM_IOCTL_GEM_CLOSE failed with error %d", ret1);
+    }
+  }
+
+  return ret;
+}
+
+int DRMMaster::RemoveFbId(uint32_t gem_handle, uint32_t fb_id) {
+  int ret = drmModeRmFB(dev_fd_, fb_id);
+  if (ret) {
+    DRM_LOGE("drmModeRmFB failed with error %d", ret);
+  }
+
+  struct drm_gem_close gem_close = {};
+  gem_close.handle = gem_handle;
+  ret = drmIoctl(dev_fd_, DRM_IOCTL_GEM_CLOSE, &gem_close);
+  if (ret) {
+    DRM_LOGE("drmIoctl::DRM_IOCTL_GEM_CLOSE failed with error %d", ret);
+  }
+
+  return ret;
+}
+
+}  // namespace drm_utils
diff --git a/libdrmutils/drm_master.h b/libdrmutils/drm_master.h
new file mode 100644
index 0000000..8c32a1b
--- /dev/null
+++ b/libdrmutils/drm_master.h
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_MASTER_H__
+#define __DRM_MASTER_H__
+
+#include <mutex>
+
+#include "drm_logger.h"
+
+namespace drm_utils {
+
+struct DRMBuffer {
+  int fd = -1;
+  uint32_t width = 0;
+  uint32_t height = 0;
+  uint32_t drm_format = 0;
+  uint64_t drm_format_modifier = 0;
+  uint32_t stride[4] = {};
+  uint32_t offset[4] = {};
+  uint32_t num_planes = 1;
+};
+
+class DRMMaster {
+ public:
+  ~DRMMaster();
+  /* Converts from ION fd --> Prime Handle --> FB_ID.
+   * Input:
+   *   drm_buffer: A DRMBuffer obj that packages description of buffer
+   * Output:
+   *   fb_id: Pointer to store DRM framebuffer id into
+   * Returns:
+   *   ioctl error code
+   */
+  int CreateFbId(const DRMBuffer &drm_buffer, uint32_t *gem_handle, uint32_t *fb_id);
+  /* Removes the fb_id from DRM
+   * Input:
+   *   fb_id: DRM FB to be removed
+   * Returns:
+   *   ioctl error code
+   */
+  int RemoveFbId(uint32_t gem_handle, uint32_t fb_id);
+  /* Poplulates master DRM fd
+   * Input:
+   *   fd: Pointer to store master fd into
+   */
+  void GetHandle(int *fd) { *fd = dev_fd_; }
+
+  /* Creates an instance of DRMMaster if it doesn't exist and initializes it. Threadsafe.
+   * Input:
+   *   master: Pointer to store a pointer to the instance
+   * Returns:
+   *   -ENODEV if device cannot be opened or initilization fails
+   */
+  static int GetInstance(DRMMaster **master);
+
+ private:
+  DRMMaster() {}
+  int Init();
+
+  int dev_fd_ = -1;              // Master fd for DRM
+  static DRMMaster *s_instance;  // Singleton instance
+  static std::mutex s_lock;
+};
+
+}  // namespace drm_utils
+
+#endif  // __DRM_MASTER_H__
diff --git a/libdrmutils/drm_res_mgr.cpp b/libdrmutils/drm_res_mgr.cpp
new file mode 100644
index 0000000..1d29495
--- /dev/null
+++ b/libdrmutils/drm_res_mgr.cpp
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <errno.h>
+
+#include "drm_master.h"
+#include "drm_res_mgr.h"
+
+#define DEBUG 0
+#define __CLASS__ "DRMResMgr"
+
+using std::mutex;
+using std::lock_guard;
+
+namespace drm_utils {
+
+DRMResMgr *DRMResMgr::s_instance = nullptr;
+mutex DRMResMgr::s_lock;
+
+static bool GetConnector(int dev_fd, drmModeRes *res, drmModeConnector **connector) {
+  for (auto i = 0; i < res->count_connectors; i++) {
+    drmModeConnector *conn = drmModeGetConnector(dev_fd, res->connectors[i]);
+    if (conn && conn->connector_type == DRM_MODE_CONNECTOR_DSI && conn->count_modes &&
+        conn->connection == DRM_MODE_CONNECTED) {
+      *connector = conn;
+      DRM_LOGI("Found connector %d", conn->connector_id);
+      return true;
+    }
+  }
+
+  return false;
+}
+
+static bool GetEncoder(int dev_fd, drmModeConnector *conn, drmModeEncoder **encoder) {
+  for (auto i = 0; i < conn->count_encoders; i++) {
+    drmModeEncoder *enc = drmModeGetEncoder(dev_fd, conn->encoders[i]);
+    if (enc && enc->encoder_type == DRM_MODE_ENCODER_DSI) {
+      *encoder = enc;
+      DRM_LOGI("Found encoder %d", enc->encoder_id);
+      return true;
+    }
+  }
+  return false;
+}
+
+static bool GetCrtc(int dev_fd, drmModeRes *res, drmModeEncoder *enc, drmModeCrtc **crtc) {
+  for (auto i = 0; i < res->count_crtcs; i++) {
+    if (enc->possible_crtcs & (1 << i)) {
+      drmModeCrtc *c = drmModeGetCrtc(dev_fd, res->crtcs[i]);
+      if (c) {
+        *crtc = c;
+        DRM_LOGI("Found crtc %d", c->crtc_id);
+        return true;
+      }
+    }
+  }
+
+  return false;
+}
+
+#define __CLASS__ "DRMResMgr"
+
+int DRMResMgr::GetInstance(DRMResMgr **res_mgr) {
+  lock_guard<mutex> obj(s_lock);
+
+  if (!s_instance) {
+    s_instance = new DRMResMgr();
+    if (s_instance->Init() < 0) {
+      delete s_instance;
+      s_instance = nullptr;
+      return -ENODEV;
+    }
+  }
+
+  *res_mgr = s_instance;
+  return 0;
+}
+
+int DRMResMgr::Init() {
+  DRMMaster *master = nullptr;
+  int dev_fd = -1;
+
+  int ret = DRMMaster::GetInstance(&master);
+  if (ret < 0) {
+    return ret;
+  }
+
+  master->GetHandle(&dev_fd);
+  drmModeRes *res = drmModeGetResources(dev_fd);
+  if (res == nullptr) {
+    DRM_LOGE("drmModeGetResources failed");
+    return -ENODEV;
+  }
+
+  drmModeConnector *conn = nullptr;
+  if (!GetConnector(dev_fd, res, &conn)) {
+    DRM_LOGE("Failed to find a connector");
+    return -ENODEV;
+  }
+
+  drmModeEncoder *enc = nullptr;
+  if (!GetEncoder(dev_fd, conn, &enc)) {
+    DRM_LOGE("Failed to find an encoder");
+    drmModeFreeConnector(conn);
+    return -ENODEV;
+  }
+
+  drmModeCrtc *crtc = nullptr;
+  if (!GetCrtc(dev_fd, res, enc, &crtc)) {
+    DRM_LOGE("Failed to find a crtc");
+    drmModeFreeEncoder(enc);
+    drmModeFreeConnector(conn);
+    drmModeFreeResources(res);
+    return -ENODEV;
+  }
+
+  res_ = res;
+  conn_ = conn;
+  enc_ = enc;
+  crtc_ = crtc;
+
+  return 0;
+}
+
+}  // namespace drm_utils
diff --git a/libdrmutils/drm_res_mgr.h b/libdrmutils/drm_res_mgr.h
new file mode 100644
index 0000000..3a8378c
--- /dev/null
+++ b/libdrmutils/drm_res_mgr.h
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*   * Neither the name of The Linux Foundation nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_RES_MGR_H__
+#define __DRM_RES_MGR_H__
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include <mutex>
+
+namespace drm_utils {
+
+class DRMResMgr {
+ public:
+  /* Returns the default connector id for primary panel */
+  void GetConnectorId(uint32_t *id) { *id = conn_->connector_id; }
+  /* Returns the default crtc id for primary pipeline */
+  void GetCrtcId(uint32_t *id) { *id = crtc_->crtc_id; }
+  /* Returns the default mode currently used by the connector */
+  void GetMode(drmModeModeInfo *mode) { *mode = conn_->modes[0]; }
+  /* Returns the panel dimensions in mm */
+  void GetDisplayDimInMM(uint32_t *w, uint32_t *h) {
+    *w = conn_->mmWidth;
+    *h = conn_->mmHeight;
+  }
+
+  /* Creates and initializes an instance of DRMResMgr. On success, returns a pointer to it, on
+   * failure returns -ENODEV */
+  static int GetInstance(DRMResMgr **res_mgr);
+
+ private:
+  int Init();
+
+  drmModeRes *res_ = nullptr;
+  drmModeConnector *conn_ = nullptr;
+  drmModeEncoder *enc_ = nullptr;
+  drmModeCrtc *crtc_ = nullptr;
+
+  static DRMResMgr *s_instance;
+  static std::mutex s_lock;
+};
+
+}  // namespace drm_utils
+
+#endif  // __DRM_RES_MGR_H__
diff --git a/libgralloc/Android.mk b/libgralloc/Android.mk
index c1d4d79..6a0f868 100644
--- a/libgralloc/Android.mk
+++ b/libgralloc/Android.mk
@@ -23,7 +23,7 @@
 LOCAL_C_INCLUDES              := $(common_includes) $(kernel_includes)
 LOCAL_SHARED_LIBRARIES        := $(common_libs) libmemalloc libqdMetaData libqdutils
 ifneq ($(TARGET_IS_HEADLESS), true)
-LOCAL_SHARED_LIBRARIES        += libGLESv1_CM
+LOCAL_SHARED_LIBRARIES        += libGLESv1_CM libdrmutils
 endif
 LOCAL_CFLAGS                  := $(common_flags) -DLOG_TAG=\"qdgralloc\" -Wno-sign-conversion
 LOCAL_ADDITIONAL_DEPENDENCIES := $(common_deps) $(kernel_deps)
diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index 7190fc0..805948b 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -30,24 +30,18 @@
 #include <cutils/log.h>
 #include <fcntl.h>
 #include <dlfcn.h>
+#include <media/msm_media_info.h>
+#include <qdMetaData.h>
+#include <utils/Singleton.h>
+#include <utils/Mutex.h>
+#include <algorithm>
+
 #include "gralloc_priv.h"
 #include "alloc_controller.h"
 #include "memalloc.h"
 #include "ionalloc.h"
 #include "gr.h"
 #include "qd_utils.h"
-#include <qdMetaData.h>
-#include <utils/Singleton.h>
-#include <utils/Mutex.h>
-#include <algorithm>
-
-#ifdef VENUS_COLOR_FORMAT
-#include <media/msm_media_info.h>
-#else
-#define VENUS_Y_STRIDE(args...) 0
-#define VENUS_Y_SCANLINES(args...) 0
-#define VENUS_BUFFER_SIZE(args...) 0
-#endif
 
 #define ASTC_BLOCK_SIZE 16
 
@@ -203,6 +197,7 @@
         case HAL_PIXEL_FORMAT_R_8:
         case HAL_PIXEL_FORMAT_RG_88:
         case HAL_PIXEL_FORMAT_BGRX_8888:
+        case HAL_PIXEL_FORMAT_BGR_888:
         case HAL_PIXEL_FORMAT_RGBA_1010102:
         case HAL_PIXEL_FORMAT_ARGB_2101010:
         case HAL_PIXEL_FORMAT_RGBX_1010102:
@@ -262,6 +257,7 @@
             case HAL_PIXEL_FORMAT_YCbCr_422_I:
             case HAL_PIXEL_FORMAT_YCrCb_422_I:
             case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+            case HAL_PIXEL_FORMAT_CbYCrY_422_I:
                 aligned_w = ALIGN(width, 16);
                 break;
             case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
@@ -593,6 +589,7 @@
         case HAL_PIXEL_FORMAT_YCrCb_422_SP:
         case HAL_PIXEL_FORMAT_YCbCr_422_I:
         case HAL_PIXEL_FORMAT_YCrCb_422_I:
+        case HAL_PIXEL_FORMAT_CbYCrY_422_I:
             if(width & 1) {
                 ALOGE("width is odd for the YUV422_SP format");
                 return 0;
@@ -813,6 +810,16 @@
             ycbcr->cstride = cstride;
             ycbcr->chroma_step = 1;
         break;
+        case HAL_PIXEL_FORMAT_CbYCrY_422_I:
+            ystride = width * 2;
+            cstride = 0;
+            ycbcr->y  = (void*)hnd->base;
+            ycbcr->cr = NULL;
+            ycbcr->cb = NULL;
+            ycbcr->ystride = ystride;
+            ycbcr->cstride = 0;
+            ycbcr->chroma_step = 0;
+        break;
         //Unsupported formats
         case HAL_PIXEL_FORMAT_YCbCr_422_I:
         case HAL_PIXEL_FORMAT_YCrCb_422_I:
diff --git a/libgralloc/gpu.cpp b/libgralloc/gpu.cpp
index a0339b4..848c741 100644
--- a/libgralloc/gpu.cpp
+++ b/libgralloc/gpu.cpp
@@ -20,16 +20,216 @@
 #include <fcntl.h>
 #include <cutils/properties.h>
 #include <sys/mman.h>
+#include <linux/msm_ion.h>
+#ifdef COMPILE_DRM
+#include <drm/drm_fourcc.h>
+#include <drm_master.h>
+#endif
+#include <qdMetaData.h>
+#include <qd_utils.h>
+
+#include <algorithm>
 
 #include "gr.h"
 #include "gpu.h"
 #include "memalloc.h"
 #include "alloc_controller.h"
-#include <qdMetaData.h>
-#include <linux/msm_ion.h>
+
+#ifdef COMPILE_DRM
+#ifndef DRM_FORMAT_MOD_QCOM_COMPRESSED
+#define DRM_FORMAT_MOD_QCOM_COMPRESSED fourcc_mod_code(QCOM, 1)
+#endif
+#endif
 
 using namespace gralloc;
 
+#ifdef COMPILE_DRM
+using namespace drm_utils;
+
+static int getPlaneStrideOffset(private_handle_t *hnd, uint32_t *stride,
+        uint32_t *offset, uint32_t *num_planes) {
+    struct android_ycbcr yuvInfo = {};
+    *num_planes = 1;
+
+    switch (hnd->format) {
+        case HAL_PIXEL_FORMAT_RGB_565:
+        case HAL_PIXEL_FORMAT_BGR_565:
+        case HAL_PIXEL_FORMAT_RGBA_5551:
+        case HAL_PIXEL_FORMAT_RGBA_4444:
+            stride[0] = hnd->width * 2;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_888:
+            stride[0] = hnd->width * 3;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_8888:
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+        case HAL_PIXEL_FORMAT_BGRX_8888:
+        case HAL_PIXEL_FORMAT_RGBA_1010102:
+        case HAL_PIXEL_FORMAT_ARGB_2101010:
+        case HAL_PIXEL_FORMAT_RGBX_1010102:
+        case HAL_PIXEL_FORMAT_XRGB_2101010:
+        case HAL_PIXEL_FORMAT_BGRA_1010102:
+        case HAL_PIXEL_FORMAT_ABGR_2101010:
+        case HAL_PIXEL_FORMAT_BGRX_1010102:
+        case HAL_PIXEL_FORMAT_XBGR_2101010:
+            stride[0] = hnd->width * 4;
+            break;
+    }
+
+    // Format is RGB
+    if (stride[0]) {
+        return 0;
+    }
+
+    (*num_planes)++;
+    int ret = getYUVPlaneInfo(hnd, &yuvInfo);
+    if (ret < 0) {
+        ALOGE("%s failed", __FUNCTION__);
+        return ret;
+    }
+
+    stride[0] = static_cast<uint32_t>(yuvInfo.ystride);
+    offset[0] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.y) - hnd->base);
+    stride[1] = static_cast<uint32_t>(yuvInfo.cstride);
+    switch (hnd->format) {
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
+        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
+        case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+        case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cb) - hnd->base);
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
+        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cr) - hnd->base);
+            break;
+        case HAL_PIXEL_FORMAT_YV12:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cr) - hnd->base);
+            stride[2] = static_cast<uint32_t>(yuvInfo.cstride);
+            offset[2] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cb) - hnd->base);
+            (*num_planes)++;
+            break;
+        default:
+            ALOGW("%s: Unsupported format %s", __FUNCTION__,
+                    qdutils::GetHALPixelFormatString(hnd->format));
+    }
+
+    if (hnd->flags & private_handle_t::PRIV_FLAGS_UBWC_ALIGNED) {
+        std::fill(offset, offset + 4, 0);
+    }
+
+    return 0;
+}
+
+static void getDRMFormat(int hal_format, int flags, uint32_t *drm_format,
+        uint64_t *drm_format_modifier) {
+
+    if (flags & private_handle_t::PRIV_FLAGS_UBWC_ALIGNED) {
+        *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED;
+    }
+
+    switch (hal_format) {
+        case HAL_PIXEL_FORMAT_RGBA_8888:
+            *drm_format = DRM_FORMAT_RGBA8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_5551:
+            *drm_format = DRM_FORMAT_RGBA5551;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_4444:
+            *drm_format = DRM_FORMAT_RGBA4444;
+            break;
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+            *drm_format = DRM_FORMAT_BGRA8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+            *drm_format = DRM_FORMAT_RGBX8888;
+            break;
+        case HAL_PIXEL_FORMAT_BGRX_8888:
+            *drm_format = DRM_FORMAT_BGRX8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_888:
+            *drm_format = DRM_FORMAT_RGB888;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_565:
+            *drm_format = DRM_FORMAT_RGB565;
+            break;
+        case HAL_PIXEL_FORMAT_BGR_565:
+            *drm_format = DRM_FORMAT_BGR565;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_1010102:
+            *drm_format = DRM_FORMAT_RGBA1010102;
+            break;
+        case HAL_PIXEL_FORMAT_ARGB_2101010:
+            *drm_format = DRM_FORMAT_ARGB2101010;
+            break;
+        case HAL_PIXEL_FORMAT_RGBX_1010102:
+            *drm_format = DRM_FORMAT_RGBX1010102;
+            break;
+        case HAL_PIXEL_FORMAT_XRGB_2101010:
+            *drm_format = DRM_FORMAT_XRGB2101010;
+            break;
+        case HAL_PIXEL_FORMAT_BGRA_1010102:
+            *drm_format = DRM_FORMAT_BGRA1010102;
+            break;
+        case HAL_PIXEL_FORMAT_ABGR_2101010:
+            *drm_format = DRM_FORMAT_ABGR2101010;
+            break;
+        case HAL_PIXEL_FORMAT_BGRX_1010102:
+            *drm_format = DRM_FORMAT_BGRX1010102;
+            break;
+        case HAL_PIXEL_FORMAT_XBGR_2101010:
+            *drm_format = DRM_FORMAT_XBGR2101010;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
+            *drm_format = DRM_FORMAT_NV12;
+            break;
+        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+            *drm_format = DRM_FORMAT_NV12;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
+            *drm_format = DRM_FORMAT_NV12;
+            *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+            *drm_format = DRM_FORMAT_NV21;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
+            *drm_format = DRM_FORMAT_NV21;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+            // TODO *drm_format = DRM_FORMAT_P010;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
+            // TODO *drm_format = DRM_FORMAT_P010;
+            // *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED |
+            //        DRM_FORMAT_MOD_QCOM_TIGHT;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+            *drm_format = DRM_FORMAT_NV16;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
+            *drm_format = DRM_FORMAT_NV61;
+            break;
+        case HAL_PIXEL_FORMAT_YV12:
+            *drm_format = DRM_FORMAT_YVU420;
+            break;
+        default:
+            ALOGW("%s: Unsupported format %s", __FUNCTION__,
+                    qdutils::GetHALPixelFormatString(hal_format));
+    }
+}
+#endif
+
 gpu_context_t::gpu_context_t(const private_module_t* module,
                              IAllocController* alloc_ctrl ) :
     mAllocCtrl(alloc_ctrl)
@@ -169,11 +369,46 @@
         ColorSpace_t colorSpace = ITU_R_601;
         setMetaData(hnd, UPDATE_COLOR_SPACE, (void*) &colorSpace);
 
+#ifdef COMPILE_DRM
+        if (qdutils::getDriverType() == qdutils::DriverType::DRM &&
+                usage & GRALLOC_USAGE_HW_COMPOSER) {
+            DRMBuffer buf = {};
+            int ret = getPlaneStrideOffset(hnd, buf.stride, buf.offset,
+                    &buf.num_planes);
+            if (ret < 0) {
+                ALOGE("%s failed", __FUNCTION__);
+                return ret;
+            }
+
+            buf.fd = hnd->fd;
+            buf.width = hnd->width;
+            buf.height = hnd->height;
+            getDRMFormat(hnd->format, flags, &buf.drm_format,
+                    &buf.drm_format_modifier);
+
+            DRMMaster *master = nullptr;
+            ret = DRMMaster::GetInstance(&master);
+            if (ret < 0) {
+                ALOGE("%s Failed to acquire DRMMaster instance", __FUNCTION__);
+                return ret;
+            }
+
+            ret = master->CreateFbId(buf, &hnd->gem_handle, &hnd->fb_id);
+            if (ret < 0) {
+                ALOGE("%s: CreateFbId failed. width %d, height %d, " \
+                        "format: %s, stride %u, error %d", __FUNCTION__,
+                        buf.width, buf.height,
+                        qdutils::GetHALPixelFormatString(hnd->format),
+                        buf.stride[0], errno);
+                return ret;
+            }
+        }
+#endif
+
         *pHandle = hnd;
     }
 
     ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
-
     return err;
 }
 
@@ -369,6 +604,23 @@
         if (err)
             return err;
     }
+
+#ifdef COMPILE_DRM
+    if (hnd->fb_id) {
+        DRMMaster *master = nullptr;
+        int ret = DRMMaster::GetInstance(&master);
+        if (ret < 0) {
+            ALOGE("%s Failed to acquire DRMMaster instance", __FUNCTION__);
+            return ret;
+        }
+        ret = master->RemoveFbId(hnd->gem_handle, hnd->fb_id);
+        if (ret < 0) {
+            ALOGE("%s: Removing fb_id %d failed with error %d", __FUNCTION__,
+                    hnd->fb_id, errno);
+        }
+    }
+#endif
+
     delete hnd;
     return 0;
 }
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index 738b63f..5782180 100644
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008 The Android Open Source Project
- * Copyright (c) 2011 - 2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011 - 2017, The Linux Foundation. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -118,6 +118,8 @@
 #define HAL_PIXEL_FORMAT_BGRX_1010102            0x11C
 #define HAL_PIXEL_FORMAT_XBGR_2101010            0x11D
 #define HAL_PIXEL_FORMAT_YCbCr_420_P010          0x11F
+#define HAL_PIXEL_FORMAT_CbYCrY_422_I            0x120
+#define HAL_PIXEL_FORMAT_BGR_888                 0x121
 
 #define HAL_PIXEL_FORMAT_INTERLACE               0x180
 
@@ -245,6 +247,8 @@
         uint64_t base_metadata __attribute__((aligned(8)));
         int unaligned_width;   // holds width client asked to allocate
         int unaligned_height;  // holds height client asked to allocate
+        unsigned int gem_handle;
+        unsigned int fb_id;
 
 #ifdef __cplusplus
         static const int sNumFds = 2;
@@ -261,7 +265,7 @@
             base(0), offset_metadata(0), gpuaddr(0),
             format(format), width(width), height(height),
             base_metadata(0), unaligned_width(width),
-            unaligned_height(height)
+            unaligned_height(height), gem_handle(0), fb_id(0)
         {
             version = (int) sizeof(native_handle);
             numInts = sNumInts();
diff --git a/libgralloc1/Android.mk b/libgralloc1/Android.mk
index b66a027..fb8c74a 100644
--- a/libgralloc1/Android.mk
+++ b/libgralloc1/Android.mk
@@ -10,6 +10,9 @@
                                  external/libcxx/include/
 
 LOCAL_SHARED_LIBRARIES        := $(common_libs) libqdMetaData libsync libqdutils
+ifneq ($(TARGET_IS_HEADLESS), true)
+LOCAL_SHARED_LIBRARIES        += libdrmutils
+endif
 LOCAL_CFLAGS                  := $(common_flags) -DLOG_TAG=\"qdgralloc\" -Wall -std=c++11 -Werror
 LOCAL_CFLAGS                  += -isystem  $(kernel_includes)
 LOCAL_CLANG                   := true
diff --git a/libgralloc1/gr_adreno_info.h b/libgralloc1/gr_adreno_info.h
index 9b239c7..7ad6801 100644
--- a/libgralloc1/gr_adreno_info.h
+++ b/libgralloc1/gr_adreno_info.h
@@ -30,13 +30,7 @@
 #ifndef __GR_ADRENO_INFO_H__
 #define __GR_ADRENO_INFO_H__
 
-#ifdef VENUS_COLOR_FORMAT
 #include <media/msm_media_info.h>
-#else
-#define VENUS_Y_STRIDE(args...) 0
-#define VENUS_Y_SCANLINES(args...) 0
-#define VENUS_BUFFER_SIZE(args...) 0
-#endif
 
 namespace gralloc1 {
 
diff --git a/libgralloc1/gr_buf_mgr.cpp b/libgralloc1/gr_buf_mgr.cpp
index cea8ac9..c2d8598 100644
--- a/libgralloc1/gr_buf_mgr.cpp
+++ b/libgralloc1/gr_buf_mgr.cpp
@@ -17,6 +17,9 @@
  * limitations under the License.
  */
 
+#include <drm/drm_fourcc.h>
+#include <drm_master.h>
+
 #include <utility>
 
 #include "qd_utils.h"
@@ -28,6 +31,192 @@
 
 namespace gralloc1 {
 
+using namespace drm_utils;
+
+static int getPlaneStrideOffset(private_handle_t *hnd, uint32_t *stride,
+        uint32_t *offset, uint32_t *num_planes) {
+    struct android_ycbcr yuvInfo = {};
+    *num_planes = 1;
+
+    switch (hnd->format) {
+        case HAL_PIXEL_FORMAT_RGB_565:
+        case HAL_PIXEL_FORMAT_BGR_565:
+        case HAL_PIXEL_FORMAT_RGBA_5551:
+        case HAL_PIXEL_FORMAT_RGBA_4444:
+            stride[0] = hnd->width * 2;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_888:
+            stride[0] = hnd->width * 3;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_8888:
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+        case HAL_PIXEL_FORMAT_BGRX_8888:
+        case HAL_PIXEL_FORMAT_RGBA_1010102:
+        case HAL_PIXEL_FORMAT_ARGB_2101010:
+        case HAL_PIXEL_FORMAT_RGBX_1010102:
+        case HAL_PIXEL_FORMAT_XRGB_2101010:
+        case HAL_PIXEL_FORMAT_BGRA_1010102:
+        case HAL_PIXEL_FORMAT_ABGR_2101010:
+        case HAL_PIXEL_FORMAT_BGRX_1010102:
+        case HAL_PIXEL_FORMAT_XBGR_2101010:
+            stride[0] = hnd->width * 4;
+            break;
+    }
+
+    // Format is RGB
+    if (stride[0]) {
+        return 0;
+    }
+
+    (*num_planes)++;
+    int ret = getYUVPlaneInfo(hnd, &yuvInfo);
+    if (ret < 0) {
+        ALOGE("%s failed", __FUNCTION__);
+        return ret;
+    }
+
+    stride[0] = static_cast<uint32_t>(yuvInfo.ystride);
+    offset[0] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.y) - hnd->base);
+    stride[1] = static_cast<uint32_t>(yuvInfo.cstride);
+    switch (hnd->format) {
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
+        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
+        case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+        case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cb) - hnd->base);
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
+        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cr) - hnd->base);
+            break;
+        case HAL_PIXEL_FORMAT_YV12:
+            offset[1] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cr) - hnd->base);
+            stride[2] = static_cast<uint32_t>(yuvInfo.cstride);
+            offset[2] = static_cast<uint32_t>(
+                    reinterpret_cast<uint64_t>(yuvInfo.cb) - hnd->base);
+            (*num_planes)++;
+            break;
+        default:
+            ALOGW("%s: Unsupported format %s", __FUNCTION__,
+                    qdutils::GetHALPixelFormatString(hnd->format));
+    }
+
+    if (hnd->flags & private_handle_t::PRIV_FLAGS_UBWC_ALIGNED) {
+        std::fill(offset, offset + 4, 0);
+    }
+
+    return 0;
+}
+
+static void getDRMFormat(int hal_format, int flags, uint32_t *drm_format,
+        uint64_t *drm_format_modifier) {
+
+    if (flags & private_handle_t::PRIV_FLAGS_UBWC_ALIGNED) {
+        *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED;
+    }
+
+    switch (hal_format) {
+        case HAL_PIXEL_FORMAT_RGBA_8888:
+            *drm_format = DRM_FORMAT_RGBA8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_5551:
+            *drm_format = DRM_FORMAT_RGBA5551;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_4444:
+            *drm_format = DRM_FORMAT_RGBA4444;
+            break;
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+            *drm_format = DRM_FORMAT_BGRA8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+            *drm_format = DRM_FORMAT_RGBX8888;
+            break;
+        case HAL_PIXEL_FORMAT_BGRX_8888:
+            *drm_format = DRM_FORMAT_BGRX8888;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_888:
+            *drm_format = DRM_FORMAT_RGB888;
+            break;
+        case HAL_PIXEL_FORMAT_RGB_565:
+            *drm_format = DRM_FORMAT_RGB565;
+            break;
+        case HAL_PIXEL_FORMAT_BGR_565:
+            *drm_format = DRM_FORMAT_BGR565;
+            break;
+        case HAL_PIXEL_FORMAT_RGBA_1010102:
+            *drm_format = DRM_FORMAT_RGBA1010102;
+            break;
+        case HAL_PIXEL_FORMAT_ARGB_2101010:
+            *drm_format = DRM_FORMAT_ARGB2101010;
+            break;
+        case HAL_PIXEL_FORMAT_RGBX_1010102:
+            *drm_format = DRM_FORMAT_RGBX1010102;
+            break;
+        case HAL_PIXEL_FORMAT_XRGB_2101010:
+            *drm_format = DRM_FORMAT_XRGB2101010;
+            break;
+        case HAL_PIXEL_FORMAT_BGRA_1010102:
+            *drm_format = DRM_FORMAT_BGRA1010102;
+            break;
+        case HAL_PIXEL_FORMAT_ABGR_2101010:
+            *drm_format = DRM_FORMAT_ABGR2101010;
+            break;
+        case HAL_PIXEL_FORMAT_BGRX_1010102:
+            *drm_format = DRM_FORMAT_BGRX1010102;
+            break;
+        case HAL_PIXEL_FORMAT_XBGR_2101010:
+            *drm_format = DRM_FORMAT_XBGR2101010;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP:
+            *drm_format = DRM_FORMAT_NV12;
+            break;
+        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+            *drm_format = DRM_FORMAT_NV12;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
+            *drm_format = DRM_FORMAT_NV12;
+            *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+            *drm_format = DRM_FORMAT_NV21;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
+            *drm_format = DRM_FORMAT_NV21;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+            // TODO *drm_format = DRM_FORMAT_P010;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
+            // TODO *drm_format = DRM_FORMAT_P010;
+            // *drm_format_modifier = DRM_FORMAT_MOD_QCOM_COMPRESSED |
+            //        DRM_FORMAT_MOD_QCOM_TIGHT;
+            break;
+        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+            *drm_format = DRM_FORMAT_NV16;
+            break;
+        case HAL_PIXEL_FORMAT_YCrCb_422_SP:
+            *drm_format = DRM_FORMAT_NV61;
+            break;
+        case HAL_PIXEL_FORMAT_YV12:
+            *drm_format = DRM_FORMAT_YVU420;
+            break;
+        default:
+            ALOGW("%s: Unsupported format %s", __FUNCTION__,
+                    qdutils::GetHALPixelFormatString(hal_format));
+
+    }
+}
+
 BufferManager::BufferManager() {
   char property[PROPERTY_VALUE_MAX];
 
@@ -139,6 +328,8 @@
       descriptor.GetWidth(), descriptor.GetHeight(), descriptor.GetProducerUsage(),
       descriptor.GetConsumerUsage());
 
+  // TODO(user): Not sure what to do for fb_id. Use duped fd and new dimensions?
+
   *outbuffer = out_hnd;
 }
 
@@ -156,6 +347,19 @@
 
   // delete handle also
   private_handle_t *handle = const_cast<private_handle_t *>(hnd);
+  if (handle->fb_id) {
+      int ret = DRMMaster::GetInstance(&master);
+      if (ret < 0) {
+          ALOGE("%s Failed to acquire DRMMaster instance", __FUNCTION__);
+          return ret;
+      }
+      ret = master->RemoveFbId(hnd->gem_handle, hnd->fb_id);
+      if (ret < 0) {
+          ALOGE("%s: Removing fb_id %d failed with error %d", __FUNCTION__,
+                  hnd->fb_id, errno);
+      }
+  }
+
   delete handle;
 
   return GRALLOC1_ERROR_NONE;
@@ -409,6 +613,39 @@
   hnd->gpuaddr = 0;
 
   setMetaData(hnd, UPDATE_COLOR_SPACE, reinterpret_cast<void *>(&colorSpace));
+  if (qdutils::getDriverType() == qdutils::DriverType::DRM &&
+          cons_usage & GRALLOC_USAGE_HW_COMPOSER) {
+      DRMBuffer buf = {};
+      int ret = getPlaneStrideOffset(hnd, buf.stride, buf.offset,
+              &buf.num_planes);
+      if (ret < 0) {
+          ALOGE("%s failed", __FUNCTION__);
+          return ret;
+      }
+
+      buf.fd = hnd->fd;
+      buf.width = hnd->width;
+      buf.height = hnd->height;
+      getDRMFormat(hnd->format, flags, &buf.drm_format,
+              &buf.drm_format_modifier);
+
+      DRMMaster *master = nullptr;
+      ret = DRMMaster::GetInstance(&master);
+      if (ret < 0) {
+          ALOGE("%s Failed to acquire DRMMaster instance", __FUNCTION__);
+          return ret;
+      }
+
+      ret = master->CreateFbId(buf, &hnd->gem_handle, &hnd->fb_id);
+      if (ret < 0) {
+          ALOGE("%s: CreateFbId failed. width %d, height %d, " \
+                  "format: %s, stride %u, error %d", __FUNCTION__,
+                  buf.width, buf.height,
+                  qdutils::GetHALPixelFormatString(hnd->format),
+                  buf.stride[0], errno);
+          return ret;
+      }
+  }
 
   *handle = hnd;
 
diff --git a/libgralloc1/gr_priv_handle.h b/libgralloc1/gr_priv_handle.h
index ee38b4d..8a01d38 100644
--- a/libgralloc1/gr_priv_handle.h
+++ b/libgralloc1/gr_priv_handle.h
@@ -84,6 +84,7 @@
 
   int stride;
   uint64_t base_metadata __attribute__((aligned(8)));
+  unsigned int fb_id;
 
   // added for gralloc1
   int unaligned_width;   // holds width client asked to allocate
@@ -117,7 +118,8 @@
         unaligned_width(width),
         unaligned_height(height),
         producer_usage(GRALLOC1_PRODUCER_USAGE_NONE),
-        consumer_usage(GRALLOC1_CONSUMER_USAGE_NONE) {
+        consumer_usage(GRALLOC1_CONSUMER_USAGE_NONE),
+        fb_id(0) {
     version = static_cast<int>(sizeof(native_handle));
     numInts = NumInts();
     numFds = kNumFds;
diff --git a/libmemtrack/kgsl.c b/libmemtrack/kgsl.c
index 877b54e..3f36b8d 100644
--- a/libmemtrack/kgsl.c
+++ b/libmemtrack/kgsl.c
@@ -74,7 +74,7 @@
     while (1) {
         unsigned long size, mapsize;
         char line_type[7];
-        char flags[9];
+        char flags[10];
         char line_usage[19];
         int ret, egl_surface_count = 0, egl_image_count = 0;
 
@@ -86,9 +86,9 @@
          *  gpuaddr useraddr     size    id flags       type            usage sglen mapsize eglsrf eglimg
          * 545ba000 545ba000     4096     1 -----pY     gpumem      arraybuffer     1  4096      0      0
          */
-        ret = sscanf(line, "%*x %*x %lu %*d %8s %6s %18s %*d %lu %6d %6d\n",
-			&size, flags, line_type, line_usage, &mapsize,
-			&egl_surface_count, &egl_image_count);
+        ret = sscanf(line, "%*x %*x %lu %*d %9s %6s %18s %*d %lu %6d %6d\n",
+                       &size, flags, line_type, line_usage, &mapsize,
+                       &egl_surface_count, &egl_image_count);
         if (ret != 7) {
             continue;
         }
diff --git a/libqdutils/qd_utils.cpp b/libqdutils/qd_utils.cpp
index 170b1d8..10ac90b 100644
--- a/libqdutils/qd_utils.cpp
+++ b/libqdutils/qd_utils.cpp
@@ -28,6 +28,7 @@
  */
 
 #include <unistd.h>
+#include <gralloc_priv.h>
 #include "qd_utils.h"
 
 namespace qdutils {
@@ -281,4 +282,79 @@
     return access(fb_caps, F_OK) ? DriverType::DRM : DriverType::FB;
 }
 
+const char *GetHALPixelFormatString(int format) {
+  switch (format) {
+  case HAL_PIXEL_FORMAT_RGBA_8888:
+    return "RGBA_8888";
+  case HAL_PIXEL_FORMAT_RGBX_8888:
+    return "RGBX_8888";
+  case HAL_PIXEL_FORMAT_RGB_888:
+    return "RGB_888";
+  case HAL_PIXEL_FORMAT_RGB_565:
+    return "RGB_565";
+  case HAL_PIXEL_FORMAT_BGR_565:
+    return "BGR_565";
+  case HAL_PIXEL_FORMAT_BGRA_8888:
+    return "BGRA_8888";
+  case HAL_PIXEL_FORMAT_RGBA_5551:
+    return "RGBA_5551";
+  case HAL_PIXEL_FORMAT_RGBA_4444:
+    return "RGBA_4444";
+  case HAL_PIXEL_FORMAT_YV12:
+    return "YV12";
+  case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+    return "YCbCr_422_SP_NV16";
+  case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+    return "YCrCb_420_SP_NV21";
+  case HAL_PIXEL_FORMAT_YCbCr_422_I:
+    return "YCbCr_422_I_YUY2";
+  case HAL_PIXEL_FORMAT_YCrCb_422_I:
+    return "YCrCb_422_I_YVYU";
+  case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+    return "NV12_ENCODEABLE";
+  case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
+    return "YCbCr_420_SP_TILED_TILE_4x2";
+  case HAL_PIXEL_FORMAT_YCbCr_420_SP:
+    return "YCbCr_420_SP";
+  case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
+    return "YCrCb_420_SP_ADRENO";
+  case HAL_PIXEL_FORMAT_YCrCb_422_SP:
+    return "YCrCb_422_SP";
+  case HAL_PIXEL_FORMAT_R_8:
+    return "R_8";
+  case HAL_PIXEL_FORMAT_RG_88:
+    return "RG_88";
+  case HAL_PIXEL_FORMAT_INTERLACE:
+    return "INTERLACE";
+  case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+    return "YCbCr_420_SP_VENUS";
+  case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
+    return "YCrCb_420_SP_VENUS";
+  case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
+    return "YCbCr_420_SP_VENUS_UBWC";
+  case HAL_PIXEL_FORMAT_RGBA_1010102:
+    return "RGBA_1010102";
+  case HAL_PIXEL_FORMAT_ARGB_2101010:
+    return "ARGB_2101010";
+  case HAL_PIXEL_FORMAT_RGBX_1010102:
+    return "RGBX_1010102";
+  case HAL_PIXEL_FORMAT_XRGB_2101010:
+    return "XRGB_2101010";
+  case HAL_PIXEL_FORMAT_BGRA_1010102:
+    return "BGRA_1010102";
+  case HAL_PIXEL_FORMAT_ABGR_2101010:
+    return "ABGR_2101010";
+  case HAL_PIXEL_FORMAT_BGRX_1010102:
+    return "BGRX_1010102";
+  case HAL_PIXEL_FORMAT_XBGR_2101010:
+    return "XBGR_2101010";
+  case HAL_PIXEL_FORMAT_YCbCr_420_P010:
+    return "YCbCr_420_P010";
+  case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
+    return "YCbCr_420_TP10_UBWC";
+  default:
+    return "Unknown_format";
+  }
+}
+
 }; //namespace qdutils
diff --git a/libqdutils/qd_utils.h b/libqdutils/qd_utils.h
index 7b3ae40..f3b0c04 100644
--- a/libqdutils/qd_utils.h
+++ b/libqdutils/qd_utils.h
@@ -69,6 +69,7 @@
     DRM,
 };
 DriverType getDriverType();
+const char *GetHALPixelFormatString(int format);
 
 }; //namespace qdutils
 #endif
diff --git a/sdm/include/core/layer_buffer.h b/sdm/include/core/layer_buffer.h
index 4b42e7b..636982c 100644
--- a/sdm/include/core/layer_buffer.h
+++ b/sdm/include/core/layer_buffer.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014, 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014, 2016-2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -149,6 +149,7 @@
                                       //!<    y(0), u(0), y(1), v(0), y(2), u(2), y(3), v(2)
                                       //!<    y(n-1), u(n-1), y(n), v(n-1)
 
+  kFormatCbYCrY422H2V1Packed,
   kFormatInvalid = 0xFFFFFFFF,
 };
 
@@ -265,6 +266,7 @@
                                 //!< could be modified by both client and SDM.
   uint64_t buffer_id __attribute__((aligned(8))) = 0;
                                 //!< Specifies the buffer id.
+  uint32_t fb_id = 0;  // DRM f/w registered framebuffer id
 };
 
 // This enum represents buffer layout types.
diff --git a/sdm/include/core/sdm_types.h b/sdm/include/core/sdm_types.h
index af7a20b..367ab38 100644
--- a/sdm/include/core/sdm_types.h
+++ b/sdm/include/core/sdm_types.h
@@ -53,6 +53,7 @@
   kErrorHardware,         //!< A hardware error has occured.
   kErrorTimeOut,          //!< The operation has timed out to prevent client from waiting forever.
   kErrorShutDown,         //!< Driver is processing shutdown sequence
+  kErrorPerfValidation,   //!< Bandwidth or Clock requirement validation failure.
 };
 
 /*! @brief This structure is defined for client and library compatibility check purpose only. This
diff --git a/sdm/include/private/hw_info_types.h b/sdm/include/private/hw_info_types.h
index 657d4ac..03b5eab 100644
--- a/sdm/include/private/hw_info_types.h
+++ b/sdm/include/private/hw_info_types.h
@@ -483,6 +483,7 @@
   uint32_t v_back_porch = 0;   //!< Vertical back porch of panel
   uint32_t v_pulse_width = 0;  //!< Vertical pulse width of panel
   uint32_t h_total = 0;        //!< Total width of panel (hActive + hFP + hBP + hPulseWidth)
+  uint32_t v_total = 0;        //!< Total height of panel (vActive + vFP + vBP + vPulseWidth)
   std::bitset<32> s3d_config;  //!< Stores the bit mask of S3D modes
 
   void Reset() { *this = HWDisplayAttributes(); }
@@ -498,6 +499,7 @@
             (v_front_porch != display_attributes.v_front_porch) ||
             (v_back_porch != display_attributes.v_back_porch) ||
             (v_pulse_width != display_attributes.v_pulse_width) ||
+            (h_total != display_attributes.h_total) ||
             (is_yuv != display_attributes.is_yuv));
   }
 
diff --git a/sdm/include/utils/utils.h b/sdm/include/utils/utils.h
index ed2c6ae..b1c55c4 100644
--- a/sdm/include/utils/utils.h
+++ b/sdm/include/utils/utils.h
@@ -36,6 +36,13 @@
 float lcm(float a, float b);
 void CloseFd(int *fd);
 
+enum class DriverType {
+    FB = 0,
+    DRM,
+};
+
+DriverType GetDriverType();
+
 }  // namespace sdm
 
 #endif  // __UTILS_H__
diff --git a/sdm/libs/core/Android.mk b/sdm/libs/core/Android.mk
index 50f087d..cdf8925 100644
--- a/sdm/libs/core/Android.mk
+++ b/sdm/libs/core/Android.mk
@@ -5,9 +5,20 @@
 LOCAL_MODULE                  := libsdmcore
 LOCAL_MODULE_TAGS             := optional
 LOCAL_C_INCLUDES              := $(common_includes) $(kernel_includes) $(common_header_export_path)
-LOCAL_CFLAGS                  := -Wno-unused-parameter -DLOG_TAG=\"SDM\" $(common_flags)
-LOCAL_HW_INTF_PATH            := fb
+LOCAL_CFLAGS                  := -Wno-unused-parameter -DLOG_TAG=\"SDM\" \
+                                 $(common_flags)
+ifeq ($(use_hwc2),false)
+  LOCAL_CFLAGS += -DUSE_SPECULATIVE_FENCES
+endif
+LOCAL_HW_INTF_PATH_1          := fb
 LOCAL_SHARED_LIBRARIES        := libdl libsdmutils
+
+ifneq ($(TARGET_IS_HEADLESS), true)
+    LOCAL_CFLAGS              += -isystem external/libdrm
+    LOCAL_SHARED_LIBRARIES    += libdrm libdrmutils
+    LOCAL_HW_INTF_PATH_2      := drm
+endif
+
 LOCAL_ADDITIONAL_DEPENDENCIES := $(common_deps) $(kernel_deps)
 LOCAL_SRC_FILES               := core_interface.cpp \
                                  core_impl.cpp \
@@ -20,14 +31,23 @@
                                  resource_default.cpp \
                                  dump_impl.cpp \
                                  color_manager.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_info.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_device.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_primary.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_hdmi.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_virtual.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_color_manager.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_scale.cpp \
-                                 $(LOCAL_HW_INTF_PATH)/hw_events.cpp
+                                 hw_events_interface.cpp \
+                                 hw_info_interface.cpp \
+                                 hw_interface.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_info.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_device.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_primary.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_hdmi.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_virtual.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_color_manager.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_scale.cpp \
+                                 $(LOCAL_HW_INTF_PATH_1)/hw_events.cpp
+
+ifneq ($(TARGET_IS_HEADLESS), true)
+    LOCAL_SRC_FILES           += $(LOCAL_HW_INTF_PATH_2)/hw_info_drm.cpp \
+                                 $(LOCAL_HW_INTF_PATH_2)/hw_device_drm.cpp \
+                                 $(LOCAL_HW_INTF_PATH_2)/hw_events_drm.cpp
+endif
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/sdm/libs/core/Makefile.am b/sdm/libs/core/Makefile.am
index 9041394..2b45d8e 100644
--- a/sdm/libs/core/Makefile.am
+++ b/sdm/libs/core/Makefile.am
@@ -11,6 +11,9 @@
             resource_default.cpp \
             dump_impl.cpp \
             color_manager.cpp \
+            hw_interface.cpp \
+            hw_info_interface.cpp \
+            hw_events_interface.cpp \
             fb/hw_info.cpp \
             fb/hw_device.cpp \
             fb/hw_primary.cpp \
@@ -41,4 +44,4 @@
 libsdmcore_la_CFLAGS = $(COMMON_CFLAGS) -DLOG_TAG=\"SDM\"
 libsdmcore_la_CPPFLAGS = $(AM_CPPFLAGS)
 libsdmcore_la_LIBADD = ../utils/libsdmutils.la
-libsdmcore_la_LDFLAGS = -shared -avoid-version
\ No newline at end of file
+libsdmcore_la_LDFLAGS = -shared -avoid-version
diff --git a/sdm/libs/core/comp_manager.cpp b/sdm/libs/core/comp_manager.cpp
index 0592ba4..b070c41 100644
--- a/sdm/libs/core/comp_manager.cpp
+++ b/sdm/libs/core/comp_manager.cpp
@@ -245,13 +245,17 @@
   // Set use_cursor constraint to Strategy
   constraints->use_cursor = display_comp_ctx->valid_cursor;
 
-  // Avoid idle fallback, if there is only one app layer.
   // TODO(user): App layer count will change for hybrid composition
   uint32_t app_layer_count = UINT32(hw_layers->info.stack->layers.size()) - 1;
-  if ((app_layer_count > 1 && display_comp_ctx->idle_fallback) || display_comp_ctx->fallback_) {
+  if (display_comp_ctx->idle_fallback || display_comp_ctx->thermal_fallback_) {
     // Handle the idle timeout by falling back
     constraints->safe_mode = true;
   }
+
+  // Avoid safe mode, if there is only one app layer.
+  if (app_layer_count == 1) {
+     constraints->safe_mode = false;
+  }
 }
 
 void CompManager::PrePrepare(Handle display_ctx, HWLayers *hw_layers) {
@@ -413,9 +417,9 @@
           reinterpret_cast<DisplayCompositionContext *>(display_ctx);
 
   if (thermal_level >= kMaxThermalLevel) {
-    display_comp_ctx->fallback_ = true;
+    display_comp_ctx->thermal_fallback_ = true;
   } else {
-    display_comp_ctx->fallback_ = false;
+    display_comp_ctx->thermal_fallback_ = false;
   }
 }
 
@@ -485,8 +489,9 @@
     return supported;
   }
   Layer *cursor_layer = layer_stack->layers.at(UINT32(gpu_index) - 1);
-  if (cursor_layer->flags.cursor && resource_intf_->ValidateCursorConfig(display_resource_ctx,
-                                    cursor_layer, true) == kErrorNone) {
+  if (cursor_layer->flags.cursor && !cursor_layer->flags.skip &&
+      resource_intf_->ValidateCursorConfig(display_resource_ctx,
+                                           cursor_layer, true) == kErrorNone) {
     supported = true;
   }
 
diff --git a/sdm/libs/core/comp_manager.h b/sdm/libs/core/comp_manager.h
index f0044ec..3713971 100644
--- a/sdm/libs/core/comp_manager.h
+++ b/sdm/libs/core/comp_manager.h
@@ -92,7 +92,7 @@
     uint32_t max_strategies = 0;
     uint32_t remaining_strategies = 0;
     bool idle_fallback = false;
-    bool fallback_ = false;
+    bool thermal_fallback_ = false;
     // Using primary panel flag of hw panel to configure Constraints. We do not need other hw
     // panel parameters for now.
     bool is_primary_panel = false;
diff --git a/sdm/libs/core/display_base.cpp b/sdm/libs/core/display_base.cpp
index 59a4dd8..64cebc1 100644
--- a/sdm/libs/core/display_base.cpp
+++ b/sdm/libs/core/display_base.cpp
@@ -716,8 +716,8 @@
   }
 
   DisplayError error = kErrorNone;
-  // Set client requests when not in HDR Mode.
-  if (!hdr_playback_mode_) {
+  // Set client requests when not in HDR Mode or lut generation is disabled
+  if (disable_hdr_lut_gen_ || !hdr_playback_mode_) {
     error = SetColorModeInternal(color_mode);
     if (error != kErrorNone) {
       return error;
@@ -1106,6 +1106,7 @@
     hw_layer.input_buffer.planes[0].stride = sdm_layer->input_buffer.planes[0].stride;
     hw_layer.input_buffer.size = sdm_layer->input_buffer.size;
     hw_layer.input_buffer.acquire_fence_fd = sdm_layer->input_buffer.acquire_fence_fd;
+    hw_layer.input_buffer.fb_id = sdm_layer->input_buffer.fb_id;
   }
 
   return;
@@ -1198,8 +1199,8 @@
 DisplayError DisplayBase::HandleHDR(LayerStack *layer_stack) {
   DisplayError error = kErrorNone;
 
-  if (disable_hdr_lut_gen_) {
-    // Do not apply HDR Mode when hdr lut generation is disabled
+  if (display_type_ != kPrimary) {
+    // Handling is needed for only primary displays
     return kErrorNone;
   }
 
@@ -1207,8 +1208,10 @@
     //  HDR playback off - set prev mode
     if (hdr_playback_mode_) {
       hdr_playback_mode_ = false;
-      if (color_mgr_) {
+      if (color_mgr_ && !disable_hdr_lut_gen_) {
+        // Do not apply HDR Mode when hdr lut generation is disabled
         DLOGI("Setting color mode = %s", current_color_mode_.c_str());
+        //  HDR playback off - set prev mode
         error = SetColorModeInternal(current_color_mode_);
       }
       comp_manager_->ControlDpps(true);  // Enable Dpps
@@ -1218,7 +1221,7 @@
     if (!hdr_playback_mode_ && !layer_stack->flags.animating) {
       // hdr is starting
       hdr_playback_mode_ = true;
-      if (color_mgr_) {
+      if (color_mgr_ && !disable_hdr_lut_gen_) {
         DLOGI("Setting HDR color mode = %s", hdr_color_mode_.c_str());
         error = SetColorModeInternal(hdr_color_mode_);
       }
diff --git a/sdm/libs/core/display_hdmi.cpp b/sdm/libs/core/display_hdmi.cpp
index 46d1a20..783cad9 100644
--- a/sdm/libs/core/display_hdmi.cpp
+++ b/sdm/libs/core/display_hdmi.cpp
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -86,7 +86,7 @@
   s3d_format_to_mode_.insert(std::pair<LayerBufferS3DFormat, HWS3DMode>
                             (kS3dFormatFramePacking, kS3DModeFP));
 
-  error = HWEventsInterface::Create(INT(display_type_), this, &event_list_, &hw_events_intf_);
+  error = HWEventsInterface::Create(INT(display_type_), this, event_list_, &hw_events_intf_);
   if (error != kErrorNone) {
     DisplayBase::Deinit();
     HWInterface::Destroy(hw_intf_);
diff --git a/sdm/libs/core/display_hdmi.h b/sdm/libs/core/display_hdmi.h
index 868b141..6db2304 100644
--- a/sdm/libs/core/display_hdmi.h
+++ b/sdm/libs/core/display_hdmi.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -30,6 +30,7 @@
 
 #include "display_base.h"
 #include "dump_impl.h"
+#include "hw_events_interface.h"
 
 namespace sdm {
 
@@ -61,11 +62,10 @@
   bool underscan_supported_ = false;
   HWScanSupport scan_support_;
   std::map<LayerBufferS3DFormat, HWS3DMode> s3d_format_to_mode_;
-  std::vector<const char *> event_list_ = {"vsync_event", "idle_notify", "cec/rd_msg",
-                                           "thread_exit"};
+  std::vector<HWEvent> event_list_ = { HWEvent::VSYNC, HWEvent::IDLE_NOTIFY, HWEvent::EXIT,
+    HWEvent::CEC_READ_MESSAGE };
 };
 
 }  // namespace sdm
 
 #endif  // __DISPLAY_HDMI_H__
-
diff --git a/sdm/libs/core/display_primary.cpp b/sdm/libs/core/display_primary.cpp
index 99aa3d5..3a1541e 100644
--- a/sdm/libs/core/display_primary.cpp
+++ b/sdm/libs/core/display_primary.cpp
@@ -71,7 +71,7 @@
 
   avr_prop_disabled_ = Debug::IsAVRDisabled();
 
-  error = HWEventsInterface::Create(INT(display_type_), this, &event_list_, &hw_events_intf_);
+  error = HWEventsInterface::Create(INT(display_type_), this, event_list_, &hw_events_intf_);
   if (error != kErrorNone) {
     DLOGE("Failed to create hardware events interface. Error = %d", error);
     DisplayBase::Deinit();
diff --git a/sdm/libs/core/display_primary.h b/sdm/libs/core/display_primary.h
index 7471899..70c938e 100644
--- a/sdm/libs/core/display_primary.h
+++ b/sdm/libs/core/display_primary.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -29,6 +29,7 @@
 
 #include "display_base.h"
 #include "dump_impl.h"
+#include "hw_events_interface.h"
 
 namespace sdm {
 
@@ -62,8 +63,8 @@
   bool NeedsAVREnable();
 
   uint32_t idle_timeout_ms_ = 0;
-  std::vector<const char *> event_list_ = {"vsync_event", "show_blank_event", "idle_notify",
-                                           "msm_fb_thermal_level", "thread_exit"};
+  std::vector<HWEvent> event_list_ = { HWEvent::VSYNC, HWEvent::EXIT, HWEvent::IDLE_NOTIFY,
+      HWEvent::SHOW_BLANK_EVENT, HWEvent::THERMAL_LEVEL };
   bool avr_prop_disabled_ = false;
   bool switch_to_cmd_ = false;
 };
diff --git a/sdm/libs/core/drm/hw_device_drm.cpp b/sdm/libs/core/drm/hw_device_drm.cpp
new file mode 100644
index 0000000..a72aae7
--- /dev/null
+++ b/sdm/libs/core/drm/hw_device_drm.cpp
@@ -0,0 +1,701 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#define __STDC_FORMAT_MACROS
+
+#include <ctype.h>
+#include <drm_lib_loader.h>
+#include <drm_master.h>
+#include <drm_res_mgr.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <linux/fb.h>
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <utils/constants.h>
+#include <utils/debug.h>
+#include <utils/sys.h>
+
+#include <algorithm>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "hw_device_drm.h"
+#include "hw_info_interface.h"
+
+#define __CLASS__ "HWDeviceDRM"
+
+using std::string;
+using std::to_string;
+using std::fstream;
+using drm_utils::DRMMaster;
+using drm_utils::DRMResMgr;
+using drm_utils::DRMLibLoader;
+using sde_drm::GetDRMManager;
+using sde_drm::DestroyDRMManager;
+using sde_drm::DRMDisplayType;
+using sde_drm::DRMDisplayToken;
+using sde_drm::DRMConnectorInfo;
+using sde_drm::DRMRect;
+using sde_drm::DRMBlendType;
+using sde_drm::DRMOps;
+using sde_drm::DRMTopology;
+
+namespace sdm {
+
+HWDeviceDRM::HWDeviceDRM(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf)
+    : hw_info_intf_(hw_info_intf), buffer_sync_handler_(buffer_sync_handler) {
+  device_type_ = kDevicePrimary;
+  device_name_ = "Peripheral Display";
+  hw_info_intf_ = hw_info_intf;
+}
+
+DisplayError HWDeviceDRM::Init() {
+  default_mode_ = (DRMLibLoader::GetInstance()->IsLoaded() == false);
+
+  if (!default_mode_) {
+    DRMMaster *drm_master = {};
+    int dev_fd = -1;
+    DRMMaster::GetInstance(&drm_master);
+    drm_master->GetHandle(&dev_fd);
+    DRMLibLoader::GetInstance()->FuncGetDRMManager()(dev_fd, &drm_mgr_intf_);
+    if (drm_mgr_intf_->RegisterDisplay(DRMDisplayType::PERIPHERAL, &token_)) {
+      DLOGE("RegisterDisplay failed");
+      return kErrorResources;
+    }
+
+    drm_mgr_intf_->CreateAtomicReq(token_, &drm_atomic_intf_);
+    drm_mgr_intf_->GetConnectorInfo(token_.conn_id, &connector_info_);
+    InitializeConfigs();
+    drm_atomic_intf_->Perform(DRMOps::CRTC_SET_MODE, token_.crtc_id, &current_mode_);
+#ifdef USE_SPECULATIVE_FENCES
+    drm_atomic_intf_->Perform(DRMOps::CRTC_SET_OUTPUT_FENCE_OFFSET, token_.crtc_id, 1);
+#endif
+    // TODO(user): Enable this and remove the one in SetupAtomic() onces underruns are fixed
+    // drm_atomic_intf_->Perform(DRMOps::CRTC_SET_ACTIVE, token_.crtc_id, 1);
+    // Commit to setup pipeline with mode, which then tells us the topology etc
+    if (drm_atomic_intf_->Commit(true /* synchronous */)) {
+      DLOGE("Setting up CRTC %d, Connector %d for %s failed", token_.crtc_id, token_.conn_id,
+            device_name_);
+      return kErrorResources;
+    }
+
+    // Reload connector info for updated info after 1st commit
+    drm_mgr_intf_->GetConnectorInfo(token_.conn_id, &connector_info_);
+    DLOGI("Setup CRTC %d, Connector %d for %s", token_.crtc_id, token_.conn_id, device_name_);
+  }
+
+  PopulateDisplayAttributes();
+  PopulateHWPanelInfo();
+  UpdateMixerAttributes();
+  hw_info_intf_->GetHWResourceInfo(&hw_resource_);
+
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::Deinit() {
+  drm_mgr_intf_->DestroyAtomicReq(drm_atomic_intf_);
+  drm_atomic_intf_ = {};
+  drm_mgr_intf_->UnregisterDisplay(token_);
+  return kErrorNone;
+}
+
+void HWDeviceDRM::InitializeConfigs() {
+  // TODO(user): Update modes
+  current_mode_ = connector_info_.modes[0];
+}
+
+DisplayError HWDeviceDRM::PopulateDisplayAttributes() {
+  drmModeModeInfo mode = {};
+  uint32_t mm_width = 0;
+  uint32_t mm_height = 0;
+  DRMTopology topology = DRMTopology::SINGLE_LM;
+
+  if (default_mode_) {
+    DRMResMgr *res_mgr = nullptr;
+    int ret = DRMResMgr::GetInstance(&res_mgr);
+    if (ret < 0) {
+      DLOGE("Failed to acquire DRMResMgr instance");
+      return kErrorResources;
+    }
+
+    res_mgr->GetMode(&mode);
+    res_mgr->GetDisplayDimInMM(&mm_width, &mm_height);
+  } else {
+    mode = current_mode_;
+    mm_width = connector_info_.mmWidth;
+    mm_height = connector_info_.mmHeight;
+    topology = connector_info_.topology;
+  }
+
+  display_attributes_.x_pixels = mode.hdisplay;
+  display_attributes_.y_pixels = mode.vdisplay;
+  display_attributes_.fps = mode.vrefresh;
+  display_attributes_.vsync_period_ns = UINT32(1000000000L / display_attributes_.fps);
+
+  /*
+              Active                 Front           Sync           Back
+              Region                 Porch                          Porch
+     <-----------------------><----------------><-------------><-------------->
+     <----- [hv]display ----->
+     <------------- [hv]sync_start ------------>
+     <--------------------- [hv]sync_end --------------------->
+     <-------------------------------- [hv]total ----------------------------->
+   */
+
+  display_attributes_.v_front_porch = mode.vsync_start - mode.vdisplay;
+  display_attributes_.v_pulse_width = mode.vsync_end - mode.vsync_start;
+  display_attributes_.v_back_porch = mode.vtotal - mode.vsync_end;
+  display_attributes_.v_total = mode.vtotal;
+
+  display_attributes_.h_total = mode.htotal;
+  uint32_t h_blanking = mode.htotal - mode.hdisplay;
+  display_attributes_.is_device_split =
+      (topology == DRMTopology::DUAL_LM || topology == DRMTopology::DUAL_LM_MERGE);
+  display_attributes_.h_total += display_attributes_.is_device_split ? h_blanking : 0;
+
+  display_attributes_.x_dpi = (FLOAT(mode.hdisplay) * 25.4f) / FLOAT(mm_width);
+  display_attributes_.y_dpi = (FLOAT(mode.vdisplay) * 25.4f) / FLOAT(mm_height);
+
+  return kErrorNone;
+}
+
+void HWDeviceDRM::PopulateHWPanelInfo() {
+  hw_panel_info_ = {};
+
+  snprintf(hw_panel_info_.panel_name, sizeof(hw_panel_info_.panel_name), "%s",
+           connector_info_.panel_name.c_str());
+  hw_panel_info_.split_info.left_split = display_attributes_.x_pixels;
+  if (display_attributes_.is_device_split) {
+    hw_panel_info_.split_info.left_split = hw_panel_info_.split_info.right_split =
+        display_attributes_.x_pixels / 2;
+  }
+
+  hw_panel_info_.partial_update = 0;
+  hw_panel_info_.left_align = 0;
+  hw_panel_info_.width_align = 0;
+  hw_panel_info_.top_align = 0;
+  hw_panel_info_.height_align = 0;
+  hw_panel_info_.min_roi_width = 0;
+  hw_panel_info_.min_roi_height = 0;
+  hw_panel_info_.needs_roi_merge = 0;
+  hw_panel_info_.dynamic_fps = connector_info_.dynamic_fps;
+  hw_panel_info_.min_fps = 60;
+  hw_panel_info_.max_fps = 60;
+  hw_panel_info_.is_primary_panel = connector_info_.is_primary;
+  hw_panel_info_.is_pluggable = 0;
+
+  if (!default_mode_) {
+    hw_panel_info_.needs_roi_merge = (connector_info_.topology == DRMTopology::DUAL_LM_MERGE);
+  }
+
+  GetHWDisplayPortAndMode();
+  GetHWPanelMaxBrightness();
+
+  DLOGI("%s, Panel Interface = %s, Panel Mode = %s, Is Primary = %d", device_name_,
+        interface_str_.c_str(), hw_panel_info_.mode == kModeVideo ? "Video" : "Command",
+        hw_panel_info_.is_primary_panel);
+  DLOGI("Partial Update = %d, Dynamic FPS = %d", hw_panel_info_.partial_update,
+        hw_panel_info_.dynamic_fps);
+  DLOGI("Align: left = %d, width = %d, top = %d, height = %d", hw_panel_info_.left_align,
+        hw_panel_info_.width_align, hw_panel_info_.top_align, hw_panel_info_.height_align);
+  DLOGI("ROI: min_width = %d, min_height = %d, need_merge = %d", hw_panel_info_.min_roi_width,
+        hw_panel_info_.min_roi_height, hw_panel_info_.needs_roi_merge);
+  DLOGI("FPS: min = %d, max =%d", hw_panel_info_.min_fps, hw_panel_info_.max_fps);
+  DLOGI("Left Split = %d, Right Split = %d", hw_panel_info_.split_info.left_split,
+        hw_panel_info_.split_info.right_split);
+}
+
+void HWDeviceDRM::GetHWDisplayPortAndMode() {
+  hw_panel_info_.port = kPortDefault;
+  hw_panel_info_.mode =
+      (connector_info_.panel_mode == sde_drm::DRMPanelMode::VIDEO) ? kModeVideo : kModeCommand;
+
+  if (default_mode_) {
+    return;
+  }
+
+  switch (connector_info_.type) {
+    case DRM_MODE_CONNECTOR_DSI:
+      hw_panel_info_.port = kPortDSI;
+      interface_str_ = "DSI";
+      break;
+    case DRM_MODE_CONNECTOR_LVDS:
+      hw_panel_info_.port = kPortLVDS;
+      interface_str_ = "LVDS";
+      break;
+    case DRM_MODE_CONNECTOR_eDP:
+      hw_panel_info_.port = kPortEDP;
+      interface_str_ = "EDP";
+      break;
+    case DRM_MODE_CONNECTOR_TV:
+    case DRM_MODE_CONNECTOR_HDMIA:
+    case DRM_MODE_CONNECTOR_HDMIB:
+      hw_panel_info_.port = kPortDTV;
+      interface_str_ = "HDMI";
+      break;
+    case DRM_MODE_CONNECTOR_VIRTUAL:
+      hw_panel_info_.port = kPortWriteBack;
+      interface_str_ = "Virtual";
+      break;
+    case DRM_MODE_CONNECTOR_DisplayPort:
+      // TODO(user): Add when available
+      interface_str_ = "DisplayPort";
+      break;
+  }
+
+  return;
+}
+
+void HWDeviceDRM::GetHWPanelMaxBrightness() {
+  char brightness[kMaxStringLength] = {0};
+  char kMaxBrightnessNode[64] = {0};
+
+  snprintf(kMaxBrightnessNode, sizeof(kMaxBrightnessNode), "%s",
+           "/sys/class/leds/lcd-backlight/max_brightness");
+
+  hw_panel_info_.panel_max_brightness = 255;
+  int fd = Sys::open_(kMaxBrightnessNode, O_RDONLY);
+  if (fd < 0) {
+    DLOGW("Failed to open max brightness node = %s, error = %s", kMaxBrightnessNode,
+          strerror(errno));
+    return;
+  }
+
+  if (Sys::pread_(fd, brightness, sizeof(brightness), 0) > 0) {
+    hw_panel_info_.panel_max_brightness = atoi(brightness);
+    DLOGI("Max brightness level = %d", hw_panel_info_.panel_max_brightness);
+  } else {
+    DLOGW("Failed to read max brightness level. error = %s", strerror(errno));
+  }
+
+  Sys::close_(fd);
+}
+
+DisplayError HWDeviceDRM::GetActiveConfig(uint32_t *active_config) {
+  *active_config = 0;
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::GetNumDisplayAttributes(uint32_t *count) {
+  *count = 1;
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::GetDisplayAttributes(uint32_t index,
+                                            HWDisplayAttributes *display_attributes) {
+  *display_attributes = display_attributes_;
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::GetHWPanelInfo(HWPanelInfo *panel_info) {
+  *panel_info = hw_panel_info_;
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::SetDisplayAttributes(uint32_t index) {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::SetDisplayAttributes(const HWDisplayAttributes &display_attributes) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::GetConfigIndex(uint32_t mode, uint32_t *index) {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::PowerOn() {
+  DTRACE_SCOPED();
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::PowerOff() {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::Doze() {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::DozeSuspend() {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::Standby() {
+  return kErrorNone;
+}
+
+void HWDeviceDRM::SetupAtomic(HWLayers *hw_layers, bool validate) {
+  if (default_mode_) {
+    return;
+  }
+
+  HWLayersInfo &hw_layer_info = hw_layers->info;
+  uint32_t hw_layer_count = UINT32(hw_layer_info.hw_layers.size());
+
+  for (uint32_t i = 0; i < hw_layer_count; i++) {
+    Layer &layer = hw_layer_info.hw_layers.at(i);
+    LayerBuffer &input_buffer = layer.input_buffer;
+    HWPipeInfo *left_pipe = &hw_layers->config[i].left_pipe;
+    HWPipeInfo *right_pipe = &hw_layers->config[i].right_pipe;
+
+    // TODO(user): Add support for solid fill
+    if (layer.flags.solid_fill) {
+      continue;
+    }
+
+    for (uint32_t count = 0; count < 2; count++) {
+      HWPipeInfo *pipe_info = (count == 0) ? left_pipe : right_pipe;
+      if (pipe_info->valid) {
+        uint32_t pipe_id = pipe_info->pipe_id;
+        if (input_buffer.fb_id == 0) {
+          // We set these to 0 to clear any previous cycle's state from another buffer.
+          // Unfortunately this layer will be skipped from validation because it's dimensions are
+          // tied to fb_id which is not available yet.
+          drm_atomic_intf_->Perform(DRMOps::PLANE_SET_FB_ID, pipe_id, 0);
+          drm_atomic_intf_->Perform(DRMOps::PLANE_SET_CRTC, pipe_id, 0);
+          continue;
+        }
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_ALPHA, pipe_id, layer.plane_alpha);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_ZORDER, pipe_id, pipe_info->z_order);
+        DRMBlendType blending = {};
+        SetBlending(layer.blending, &blending);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_BLEND_TYPE, pipe_id, blending);
+        DRMRect src = {};
+        SetRect(pipe_info->src_roi, &src);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_SRC_RECT, pipe_id, src);
+        DRMRect dst = {};
+        SetRect(pipe_info->dst_roi, &dst);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_DST_RECT, pipe_id, dst);
+        uint32_t rot_bit_mask = 0;
+        if (layer.transform.flip_horizontal) {
+          rot_bit_mask |= 1 << DRM_REFLECT_X;
+        }
+        if (layer.transform.flip_vertical) {
+          rot_bit_mask |= 1 << DRM_REFLECT_Y;
+        }
+
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_H_DECIMATION, pipe_id,
+                                  pipe_info->horizontal_decimation);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_V_DECIMATION, pipe_id,
+                                  pipe_info->vertical_decimation);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_ROTATION, pipe_id, rot_bit_mask);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_FB_ID, pipe_id, input_buffer.fb_id);
+        drm_atomic_intf_->Perform(DRMOps::PLANE_SET_CRTC, pipe_id, token_.crtc_id);
+        if (!validate && input_buffer.acquire_fence_fd >= 0) {
+          drm_atomic_intf_->Perform(DRMOps::PLANE_SET_INPUT_FENCE, pipe_id,
+                                    input_buffer.acquire_fence_fd);
+        }
+      }
+    }
+
+    // TODO(user): Remove this and enable the one in Init() onces underruns are fixed
+    drm_atomic_intf_->Perform(DRMOps::CRTC_SET_ACTIVE, token_.crtc_id, 1);
+  }
+}
+
+DisplayError HWDeviceDRM::Validate(HWLayers *hw_layers) {
+  DTRACE_SCOPED();
+  SetupAtomic(hw_layers, true /* validate */);
+
+  int ret = drm_atomic_intf_->Validate();
+  if (ret) {
+    DLOGE("%s failed with error %d", __FUNCTION__, ret);
+    return kErrorHardware;
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::Commit(HWLayers *hw_layers) {
+  DTRACE_SCOPED();
+  if (default_mode_) {
+    return DefaultCommit(hw_layers);
+  }
+
+  return AtomicCommit(hw_layers);
+}
+
+DisplayError HWDeviceDRM::DefaultCommit(HWLayers *hw_layers) {
+  DTRACE_SCOPED();
+
+  HWLayersInfo &hw_layer_info = hw_layers->info;
+  LayerStack *stack = hw_layer_info.stack;
+
+  stack->retire_fence_fd = -1;
+  for (Layer &layer : hw_layer_info.hw_layers) {
+    layer.input_buffer.release_fence_fd = -1;
+  }
+
+  DRMMaster *master = nullptr;
+  int ret = DRMMaster::GetInstance(&master);
+  if (ret < 0) {
+    DLOGE("Failed to acquire DRMMaster instance");
+    return kErrorResources;
+  }
+
+  DRMResMgr *res_mgr = nullptr;
+  ret = DRMResMgr::GetInstance(&res_mgr);
+  if (ret < 0) {
+    DLOGE("Failed to acquire DRMResMgr instance");
+    return kErrorResources;
+  }
+
+  int dev_fd = -1;
+  master->GetHandle(&dev_fd);
+
+  uint32_t connector_id = 0;
+  res_mgr->GetConnectorId(&connector_id);
+
+  uint32_t crtc_id = 0;
+  res_mgr->GetCrtcId(&crtc_id);
+
+  drmModeModeInfo mode;
+  res_mgr->GetMode(&mode);
+
+  LayerBuffer &input_buffer = hw_layer_info.hw_layers.at(0).input_buffer;
+  ret = drmModeSetCrtc(dev_fd, crtc_id, input_buffer.fb_id, 0 /* x */, 0 /* y */, &connector_id,
+                       1 /* num_connectors */, &mode);
+  if (ret < 0) {
+    DLOGE("drmModeSetCrtc failed dev fd %d, fb_id %d, crtc id %d, connector id %d, %s", dev_fd,
+          input_buffer.fb_id, crtc_id, connector_id, strerror(errno));
+    return kErrorHardware;
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::AtomicCommit(HWLayers *hw_layers) {
+  DTRACE_SCOPED();
+  SetupAtomic(hw_layers, false /* validate */);
+
+  int ret = drm_atomic_intf_->Commit(false /* synchronous */);
+  if (ret) {
+    DLOGE("%s failed with error %d", __FUNCTION__, ret);
+    return kErrorHardware;
+  }
+
+  int release_fence = -1;
+  int retire_fence = -1;
+
+  drm_atomic_intf_->Perform(DRMOps::CRTC_GET_RELEASE_FENCE, token_.crtc_id, &release_fence);
+  drm_atomic_intf_->Perform(DRMOps::CONNECTOR_GET_RETIRE_FENCE, token_.conn_id, &retire_fence);
+
+  HWLayersInfo &hw_layer_info = hw_layers->info;
+  LayerStack *stack = hw_layer_info.stack;
+  stack->retire_fence_fd = retire_fence;
+
+  for (Layer &layer : hw_layer_info.hw_layers) {
+    layer.input_buffer.release_fence_fd = Sys::dup_(release_fence);
+  }
+
+  hw_layer_info.sync_handle = release_fence;
+
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::Flush() {
+  return kErrorNone;
+}
+
+void HWDeviceDRM::SetBlending(const LayerBlending &source, DRMBlendType *target) {
+  switch (source) {
+    case kBlendingPremultiplied:
+      *target = DRMBlendType::PREMULTIPLIED;
+      break;
+    case kBlendingOpaque:
+      *target = DRMBlendType::OPAQUE;
+      break;
+    case kBlendingCoverage:
+      *target = DRMBlendType::COVERAGE;
+      break;
+    default:
+      *target = DRMBlendType::UNDEFINED;
+  }
+}
+
+void HWDeviceDRM::SetRect(const LayerRect &source, DRMRect *target) {
+  target->left = UINT32(source.left);
+  target->top = UINT32(source.top);
+  target->right = UINT32(source.right);
+  target->bottom = UINT32(source.bottom);
+}
+
+bool HWDeviceDRM::EnableHotPlugDetection(int enable) {
+  return true;
+}
+
+void HWDeviceDRM::ResetDisplayParams() {}
+
+DisplayError HWDeviceDRM::SetCursorPosition(HWLayers *hw_layers, int x, int y) {
+  DTRACE_SCOPED();
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::GetPPFeaturesVersion(PPFeatureVersion *vers) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetPPFeatures(PPFeaturesConfig *feature_list) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetVSyncState(bool enable) {
+  return kErrorNone;
+}
+
+void HWDeviceDRM::SetIdleTimeoutMs(uint32_t timeout_ms) {}
+
+DisplayError HWDeviceDRM::SetDisplayMode(const HWDisplayMode hw_display_mode) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetRefreshRate(uint32_t refresh_rate) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetPanelBrightness(int level) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::GetHWScanInfo(HWScanInfo *scan_info) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::GetVideoFormat(uint32_t config_index, uint32_t *video_format) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::GetMaxCEAFormat(uint32_t *max_cea_format) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::GetPanelBrightness(int *level) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetS3DMode(HWS3DMode s3d_mode) {
+  return kErrorNotSupported;
+}
+
+DisplayError HWDeviceDRM::SetScaleLutConfig(HWScaleLutInfo *lut_info) {
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::SetMixerAttributes(const HWMixerAttributes &mixer_attributes) {
+  if (!hw_resource_.hw_dest_scalar_info.count) {
+    return kErrorNotSupported;
+  }
+
+  if (mixer_attributes.width > display_attributes_.x_pixels ||
+      mixer_attributes.height > display_attributes_.y_pixels) {
+    DLOGW("Input resolution exceeds display resolution! input: res %dx%d display: res %dx%d",
+          mixer_attributes.width, mixer_attributes.height, display_attributes_.x_pixels,
+          display_attributes_.y_pixels);
+    return kErrorNotSupported;
+  }
+
+  uint32_t max_input_width = hw_resource_.hw_dest_scalar_info.max_input_width;
+  if (display_attributes_.is_device_split) {
+    max_input_width *= 2;
+  }
+
+  if (mixer_attributes.width > max_input_width) {
+    DLOGW("Input width exceeds width limit! input_width %d width_limit %d", mixer_attributes.width,
+          max_input_width);
+    return kErrorNotSupported;
+  }
+
+  float mixer_aspect_ratio = FLOAT(mixer_attributes.width) / FLOAT(mixer_attributes.height);
+  float display_aspect_ratio =
+      FLOAT(display_attributes_.x_pixels) / FLOAT(display_attributes_.y_pixels);
+
+  if (display_aspect_ratio != mixer_aspect_ratio) {
+    DLOGW("Aspect ratio mismatch! input: res %dx%d display: res %dx%d", mixer_attributes.width,
+          mixer_attributes.height, display_attributes_.x_pixels, display_attributes_.y_pixels);
+    return kErrorNotSupported;
+  }
+
+  float scale_x = FLOAT(display_attributes_.x_pixels) / FLOAT(mixer_attributes.width);
+  float scale_y = FLOAT(display_attributes_.y_pixels) / FLOAT(mixer_attributes.height);
+  float max_scale_up = hw_resource_.hw_dest_scalar_info.max_scale_up;
+  if (scale_x > max_scale_up || scale_y > max_scale_up) {
+    DLOGW(
+        "Up scaling ratio exceeds for destination scalar upscale limit scale_x %f scale_y %f "
+        "max_scale_up %f",
+        scale_x, scale_y, max_scale_up);
+    return kErrorNotSupported;
+  }
+
+  float mixer_split_ratio = FLOAT(mixer_attributes_.split_left) / FLOAT(mixer_attributes_.width);
+
+  mixer_attributes_ = mixer_attributes;
+  mixer_attributes_.split_left = mixer_attributes_.width;
+  if (display_attributes_.is_device_split) {
+    mixer_attributes_.split_left = UINT32(FLOAT(mixer_attributes.width) * mixer_split_ratio);
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWDeviceDRM::GetMixerAttributes(HWMixerAttributes *mixer_attributes) {
+  if (!mixer_attributes) {
+    return kErrorParameters;
+  }
+
+  mixer_attributes_.width = display_attributes_.x_pixels;
+  mixer_attributes_.height = display_attributes_.y_pixels;
+  mixer_attributes_.split_left = display_attributes_.is_device_split
+                                     ? hw_panel_info_.split_info.left_split
+                                     : mixer_attributes_.width;
+  *mixer_attributes = mixer_attributes_;
+
+  return kErrorNone;
+}
+
+void HWDeviceDRM::UpdateMixerAttributes() {
+  mixer_attributes_.width = display_attributes_.x_pixels;
+  mixer_attributes_.height = display_attributes_.y_pixels;
+  mixer_attributes_.split_left = display_attributes_.is_device_split
+                                     ? hw_panel_info_.split_info.left_split
+                                     : mixer_attributes_.width;
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/drm/hw_device_drm.h b/sdm/libs/core/drm/hw_device_drm.h
new file mode 100644
index 0000000..db135a0
--- /dev/null
+++ b/sdm/libs/core/drm/hw_device_drm.h
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __HW_DEVICE_DRM_H__
+#define __HW_DEVICE_DRM_H__
+
+#include <drm_interface.h>
+#include <errno.h>
+#include <pthread.h>
+#include <xf86drmMode.h>
+#include <string>
+#include <vector>
+
+#include "hw_interface.h"
+
+#define IOCTL_LOGE(ioctl, type) \
+  DLOGE("ioctl %s, device = %d errno = %d, desc = %s", #ioctl, type, errno, strerror(errno))
+
+namespace sdm {
+class HWInfoInterface;
+
+class HWDeviceDRM : public HWInterface {
+ public:
+  explicit HWDeviceDRM(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf);
+  virtual ~HWDeviceDRM() {}
+  virtual DisplayError Init();
+  virtual DisplayError Deinit();
+
+ protected:
+  // From HWInterface
+  virtual DisplayError GetActiveConfig(uint32_t *active_config);
+  virtual DisplayError GetNumDisplayAttributes(uint32_t *count);
+  virtual DisplayError GetDisplayAttributes(uint32_t index,
+                                            HWDisplayAttributes *display_attributes);
+  virtual DisplayError GetHWPanelInfo(HWPanelInfo *panel_info);
+  virtual DisplayError SetDisplayAttributes(uint32_t index);
+  virtual DisplayError SetDisplayAttributes(const HWDisplayAttributes &display_attributes);
+  virtual DisplayError GetConfigIndex(uint32_t mode, uint32_t *index);
+  virtual DisplayError PowerOn();
+  virtual DisplayError PowerOff();
+  virtual DisplayError Doze();
+  virtual DisplayError DozeSuspend();
+  virtual DisplayError Standby();
+  virtual DisplayError Validate(HWLayers *hw_layers);
+  virtual DisplayError Commit(HWLayers *hw_layers);
+  virtual DisplayError Flush();
+  virtual DisplayError GetPPFeaturesVersion(PPFeatureVersion *vers);
+  virtual DisplayError SetPPFeatures(PPFeaturesConfig *feature_list);
+  virtual DisplayError SetVSyncState(bool enable);
+  virtual void SetIdleTimeoutMs(uint32_t timeout_ms);
+  virtual DisplayError SetDisplayMode(const HWDisplayMode hw_display_mode);
+  virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
+  virtual DisplayError SetPanelBrightness(int level);
+  virtual DisplayError GetHWScanInfo(HWScanInfo *scan_info);
+  virtual DisplayError GetVideoFormat(uint32_t config_index, uint32_t *video_format);
+  virtual DisplayError GetMaxCEAFormat(uint32_t *max_cea_format);
+  virtual DisplayError SetCursorPosition(HWLayers *hw_layers, int x, int y);
+  virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
+  virtual DisplayError GetPanelBrightness(int *level);
+  virtual DisplayError SetAutoRefresh(bool enable) { return kErrorNone; }
+  virtual DisplayError SetS3DMode(HWS3DMode s3d_mode);
+  virtual DisplayError SetScaleLutConfig(HWScaleLutInfo *lut_info);
+  virtual DisplayError SetMixerAttributes(const HWMixerAttributes &mixer_attributes);
+  virtual DisplayError GetMixerAttributes(HWMixerAttributes *mixer_attributes);
+
+  enum {
+    kHWEventVSync,
+    kHWEventBlank,
+  };
+
+  static const int kMaxStringLength = 1024;
+  static const int kNumPhysicalDisplays = 2;
+
+  DisplayError SetFormat(const LayerBufferFormat &source, uint32_t *target);
+  DisplayError SetStride(HWDeviceType device_type, LayerBufferFormat format, uint32_t width,
+                         uint32_t *target);
+  DisplayError PopulateDisplayAttributes();
+  void PopulateHWPanelInfo();
+  void GetHWDisplayPortAndMode();
+  void GetHWPanelMaxBrightness();
+  void ResetDisplayParams();
+  bool EnableHotPlugDetection(int enable);
+  void UpdateMixerAttributes();
+  void InitializeConfigs();
+  void SetBlending(const LayerBlending &source, sde_drm::DRMBlendType *target);
+  void SetRect(const LayerRect &source, sde_drm::DRMRect *target);
+  DisplayError DefaultCommit(HWLayers *hw_layers);
+  DisplayError AtomicCommit(HWLayers *hw_layers);
+  void SetupAtomic(HWLayers *hw_layers, bool validate);
+
+  HWResourceInfo hw_resource_ = {};
+  HWPanelInfo hw_panel_info_ = {};
+  HWInfoInterface *hw_info_intf_ = {};
+  BufferSyncHandler *buffer_sync_handler_ = {};
+  HWDeviceType device_type_ = {};
+  const char *device_name_ = {};
+  bool synchronous_commit_ = false;
+  HWDisplayAttributes display_attributes_ = {};
+  HWMixerAttributes mixer_attributes_ = {};
+  sde_drm::DRMManagerInterface *drm_mgr_intf_ = {};
+  sde_drm::DRMAtomicReqInterface *drm_atomic_intf_ = {};
+  sde_drm::DRMDisplayToken token_ = {};
+  drmModeModeInfo current_mode_ = {};
+  bool default_mode_ = false;
+  sde_drm::DRMConnectorInfo connector_info_ = {};
+  std::string interface_str_ = "DSI";
+};
+
+}  // namespace sdm
+
+#endif  // __HW_DEVICE_DRM_H__
diff --git a/sdm/libs/core/drm/hw_events_drm.cpp b/sdm/libs/core/drm/hw_events_drm.cpp
new file mode 100644
index 0000000..81384e4
--- /dev/null
+++ b/sdm/libs/core/drm/hw_events_drm.cpp
@@ -0,0 +1,298 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <drm_master.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/prctl.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <utils/debug.h>
+#include <utils/sys.h>
+#include <xf86drm.h>
+
+#include <algorithm>
+#include <map>
+#include <utility>
+#include <vector>
+
+#include "hw_events_drm.h"
+
+#define __CLASS__ "HWEventsDRM"
+
+namespace sdm {
+
+using drm_utils::DRMMaster;
+
+DisplayError HWEventsDRM::InitializePollFd() {
+  for (uint32_t i = 0; i < event_data_list_.size(); i++) {
+    char data[kMaxStringLength]{};
+    HWEventData &event_data = event_data_list_[i];
+    poll_fds_[i].fd = -1;
+
+    switch (event_data.event_type) {
+      case HWEvent::VSYNC: {
+        poll_fds_[i].events = POLLIN | POLLPRI | POLLERR;
+        DRMMaster *master = nullptr;
+        int ret = DRMMaster::GetInstance(&master);
+        if (ret < 0) {
+          DLOGE("Failed to acquire DRMMaster instance");
+          return kErrorNotSupported;
+        }
+        master->GetHandle(&poll_fds_[i].fd);
+        vsync_index_ = i;
+      } break;
+      case HWEvent::EXIT: {
+        // Create an eventfd to be used to unblock the poll system call when
+        // a thread is exiting.
+        poll_fds_[i].fd = Sys::eventfd_(0, 0);
+        poll_fds_[i].events |= POLLIN;
+        // Clear any existing data
+        Sys::pread_(poll_fds_[i].fd, data, kMaxStringLength, 0);
+      } break;
+      case HWEvent::IDLE_NOTIFY:
+      case HWEvent::CEC_READ_MESSAGE:
+      case HWEvent::SHOW_BLANK_EVENT:
+      case HWEvent::THERMAL_LEVEL:
+        break;
+    }
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWEventsDRM::SetEventParser() {
+  DisplayError error = kErrorNone;
+
+  for (auto &event_data : event_data_list_) {
+    switch (event_data.event_type) {
+      case HWEvent::VSYNC:
+        event_data.event_parser = &HWEventsDRM::HandleVSync;
+        break;
+      case HWEvent::IDLE_NOTIFY:
+        event_data.event_parser = &HWEventsDRM::HandleIdleTimeout;
+        break;
+      case HWEvent::CEC_READ_MESSAGE:
+        event_data.event_parser = &HWEventsDRM::HandleCECMessage;
+        break;
+      case HWEvent::EXIT:
+        event_data.event_parser = &HWEventsDRM::HandleThreadExit;
+        break;
+      case HWEvent::SHOW_BLANK_EVENT:
+        event_data.event_parser = &HWEventsDRM::HandleBlank;
+        break;
+      case HWEvent::THERMAL_LEVEL:
+        event_data.event_parser = &HWEventsDRM::HandleThermal;
+        break;
+      default:
+        error = kErrorParameters;
+        break;
+    }
+  }
+
+  return error;
+}
+
+void HWEventsDRM::PopulateHWEventData(const vector<HWEvent> &event_list) {
+  for (auto &event : event_list) {
+    HWEventData event_data;
+    event_data.event_type = event;
+    event_data_list_.push_back(std::move(event_data));
+  }
+
+  SetEventParser();
+  InitializePollFd();
+}
+
+DisplayError HWEventsDRM::Init(int display_type, HWEventHandler *event_handler,
+                               const vector<HWEvent> &event_list) {
+  if (!event_handler)
+    return kErrorParameters;
+
+  event_handler_ = event_handler;
+  poll_fds_.resize(event_list.size());
+  event_thread_name_ += " - " + std::to_string(display_type);
+
+  PopulateHWEventData(event_list);
+
+  if (pthread_create(&event_thread_, NULL, &DisplayEventThread, this) < 0) {
+    DLOGE("Failed to start %s, error = %s", event_thread_name_.c_str());
+    return kErrorResources;
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWEventsDRM::Deinit() {
+  exit_threads_ = true;
+  Sys::pthread_cancel_(event_thread_);
+
+  for (uint32_t i = 0; i < event_data_list_.size(); i++) {
+    if (event_data_list_[i].event_type == HWEvent::EXIT) {
+      uint64_t exit_value = 1;
+      ssize_t write_size = Sys::write_(poll_fds_[i].fd, &exit_value, sizeof(uint64_t));
+      if (write_size != sizeof(uint64_t)) {
+        DLOGW("Error triggering exit fd (%d). write size = %d, error = %s", poll_fds_[i].fd,
+              write_size, strerror(errno));
+      }
+    }
+  }
+
+  pthread_join(event_thread_, NULL);
+  CloseFds();
+
+  return kErrorNone;
+}
+
+DisplayError HWEventsDRM::CloseFds() {
+  for (uint32_t i = 0; i < event_data_list_.size(); i++) {
+    switch (event_data_list_[i].event_type) {
+      case HWEvent::VSYNC:
+        poll_fds_[i].fd = -1;
+        break;
+      case HWEvent::EXIT:
+        Sys::close_(poll_fds_[i].fd);
+        poll_fds_[i].fd = -1;
+        break;
+      case HWEvent::IDLE_NOTIFY:
+      case HWEvent::CEC_READ_MESSAGE:
+      case HWEvent::SHOW_BLANK_EVENT:
+      case HWEvent::THERMAL_LEVEL:
+        break;
+      default:
+        return kErrorNotSupported;
+    }
+  }
+
+  return kErrorNone;
+}
+
+void *HWEventsDRM::DisplayEventThread(void *context) {
+  if (context) {
+    return reinterpret_cast<HWEventsDRM *>(context)->DisplayEventHandler();
+  }
+
+  return NULL;
+}
+
+void *HWEventsDRM::DisplayEventHandler() {
+  char data[kMaxStringLength]{};
+
+  prctl(PR_SET_NAME, event_thread_name_.c_str(), 0, 0, 0);
+  setpriority(PRIO_PROCESS, 0, kThreadPriorityUrgent);
+
+  while (!exit_threads_) {
+    if (RegisterVSync() != kErrorNone) {
+      pthread_exit(0);
+      return nullptr;
+    }
+
+    int error = Sys::poll_(poll_fds_.data(), UINT32(poll_fds_.size()), -1);
+    if (error <= 0) {
+      DLOGW("poll failed. error = %s", strerror(errno));
+      continue;
+    }
+
+    for (uint32_t i = 0; i < event_data_list_.size(); i++) {
+      pollfd &poll_fd = poll_fds_[i];
+      switch (event_data_list_[i].event_type) {
+        case HWEvent::VSYNC:
+          (this->*(event_data_list_[i]).event_parser)(nullptr);
+          break;
+        case HWEvent::EXIT:
+          if ((poll_fd.revents & POLLIN) &&
+              (Sys::read_(poll_fd.fd, data, kMaxStringLength) > 0)) {
+            (this->*(event_data_list_[i]).event_parser)(data);
+          }
+          break;
+        case HWEvent::IDLE_NOTIFY:
+        case HWEvent::CEC_READ_MESSAGE:
+        case HWEvent::SHOW_BLANK_EVENT:
+        case HWEvent::THERMAL_LEVEL:
+          if (poll_fd.fd >= 0 && (poll_fd.revents & POLLPRI) &&
+              (Sys::pread_(poll_fd.fd, data, kMaxStringLength, 0) > 0)) {
+            (this->*(event_data_list_[i]).event_parser)(data);
+          }
+          break;
+      }
+    }
+  }
+
+  pthread_exit(0);
+
+  return nullptr;
+}
+
+DisplayError HWEventsDRM::RegisterVSync() {
+  drmVBlank vblank{};
+  vblank.request.type = (drmVBlankSeqType)(DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT);
+  vblank.request.sequence = 1;
+  // DRM hack to pass in context to unused field signal. Driver will write this to the node being
+  // polled on, and will be read as part of drm event handling and sent to handler
+  vblank.request.signal = reinterpret_cast<unsigned long>(this);  // NOLINT
+  int error = drmWaitVBlank(poll_fds_[vsync_index_].fd, &vblank);
+  if (error < 0) {
+    DLOGE("drmWaitVBlank failed with err %d", errno);
+    return kErrorResources;
+  }
+
+  return kErrorNone;
+}
+
+void HWEventsDRM::HandleVSync(char *data) {
+  if (poll_fds_[vsync_index_].revents & (POLLIN | POLLPRI)) {
+    drmEventContext event = {};
+    event.version = DRM_EVENT_CONTEXT_VERSION;
+    event.vblank_handler = &HWEventsDRM::VSyncHandlerCallback;
+    int error = drmHandleEvent(poll_fds_[vsync_index_].fd, &event);
+    if (error != 0) {
+      DLOGE("drmHandleEvent failed: %i", error);
+    }
+  }
+}
+
+void HWEventsDRM::VSyncHandlerCallback(int fd, unsigned int sequence, unsigned int tv_sec,
+                                       unsigned int tv_usec, void *data) {
+  int64_t timestamp = (int64_t)(tv_sec)*1000000000 + (int64_t)(tv_usec)*1000;
+  reinterpret_cast<HWEventsDRM *>(data)->event_handler_->VSync(timestamp);
+}
+
+void HWEventsDRM::HandleIdleTimeout(char *data) {
+  event_handler_->IdleTimeout();
+}
+
+void HWEventsDRM::HandleCECMessage(char *data) {
+  event_handler_->CECMessage(data);
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/drm/hw_events_drm.h b/sdm/libs/core/drm/hw_events_drm.h
new file mode 100644
index 0000000..9f8dc38
--- /dev/null
+++ b/sdm/libs/core/drm/hw_events_drm.h
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __HW_EVENTS_DRM_H__
+#define __HW_EVENTS_DRM_H__
+
+#include <sys/poll.h>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "hw_events_interface.h"
+#include "hw_interface.h"
+
+namespace sdm {
+
+using std::vector;
+
+class HWEventsDRM : public HWEventsInterface {
+ public:
+  virtual DisplayError Init(int display_type, HWEventHandler *event_handler,
+                            const vector<HWEvent> &event_list);
+  virtual DisplayError Deinit();
+
+ private:
+  static const int kMaxStringLength = 1024;
+
+  typedef void (HWEventsDRM::*EventParser)(char *);
+
+  struct HWEventData {
+    HWEvent event_type {};
+    EventParser event_parser {};
+  };
+
+  static void *DisplayEventThread(void *context);
+  static void VSyncHandlerCallback(int fd, unsigned int sequence, unsigned int tv_sec,
+                                   unsigned int tv_usec, void *data);
+
+  void *DisplayEventHandler();
+  void HandleVSync(char *data);
+  void HandleIdleTimeout(char *data);
+  void HandleCECMessage(char *data);
+  void HandleThreadExit(char *data) {}
+  void HandleThermal(char *data) {}
+  void HandleBlank(char *data) {}
+  void PopulateHWEventData(const vector<HWEvent> &event_list);
+  DisplayError SetEventParser();
+  DisplayError InitializePollFd();
+  DisplayError CloseFds();
+  DisplayError RegisterVSync();
+
+  HWEventHandler *event_handler_{};
+  vector<HWEventData> event_data_list_{};
+  vector<pollfd> poll_fds_{};
+  pthread_t event_thread_{};
+  std::string event_thread_name_ = "SDM_EventThread";
+  bool exit_threads_ = false;
+  uint32_t vsync_index_ = 0;
+};
+
+}  // namespace sdm
+
+#endif  // __HW_EVENTS_DRM_H__
diff --git a/sdm/libs/core/drm/hw_info_drm.cpp b/sdm/libs/core/drm/hw_info_drm.cpp
new file mode 100644
index 0000000..3fb87d3
--- /dev/null
+++ b/sdm/libs/core/drm/hw_info_drm.cpp
@@ -0,0 +1,461 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <dlfcn.h>
+#include <drm/drm_fourcc.h>
+#include <drm_lib_loader.h>
+#include <drm_master.h>
+#include <drm_res_mgr.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <utils/constants.h>
+#include <utils/debug.h>
+#include <utils/sys.h>
+
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <map>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "hw_info_drm.h"
+
+#define __CLASS__ "HWInfoDRM"
+
+using drm_utils::DRMMaster;
+using drm_utils::DRMResMgr;
+using drm_utils::DRMLogger;
+using drm_utils::DRMLibLoader;
+using sde_drm::GetDRMManager;
+using sde_drm::DRMPlanesInfo;
+using sde_drm::DRMCrtcInfo;
+using sde_drm::DRMPlaneType;
+
+using std::vector;
+using std::map;
+using std::string;
+using std::fstream;
+using std::to_string;
+
+namespace sdm {
+
+class DRMLoggerImpl : public DRMLogger {
+ public:
+#define PRINTLOG(method, format, buf)        \
+  va_list list;                              \
+  va_start(list, format);                    \
+  vsnprintf(buf, sizeof(buf), format, list); \
+  va_end(list);                              \
+  Debug::Get()->method(kTagNone, "%s", buf);
+
+  void Error(const char *format, ...) { PRINTLOG(Error, format, buf_); }
+  void Warning(const char *format, ...) { PRINTLOG(Warning, format, buf_); }
+  void Info(const char *format, ...) { PRINTLOG(Info, format, buf_); }
+  void Debug(const char *format, ...) { PRINTLOG(Debug, format, buf_); }
+
+ private:
+  char buf_[1024] = {};
+};
+
+HWResourceInfo *HWInfoDRM::hw_resource_ = nullptr;
+
+HWInfoDRM::HWInfoDRM() {
+  DRMLogger::Set(new DRMLoggerImpl());
+  default_mode_ = (DRMLibLoader::GetInstance()->IsLoaded() == false);
+  if (!default_mode_) {
+    DRMMaster *drm_master = {};
+    int dev_fd = -1;
+    DRMMaster::GetInstance(&drm_master);
+    if (!drm_master) {
+      DLOGE("Failed to acquire DRMMaster instance");
+      return;
+    }
+    drm_master->GetHandle(&dev_fd);
+    DRMLibLoader::GetInstance()->FuncGetDRMManager()(dev_fd, &drm_mgr_intf_);
+  }
+}
+
+DisplayError HWInfoDRM::GetDynamicBWLimits(HWResourceInfo *hw_resource) {
+  HWDynBwLimitInfo* bw_info = &hw_resource->dyn_bw_info;
+  for (int index = 0; index < kBwModeMax; index++) {
+    bw_info->total_bw_limit[index] = UINT32(hw_resource->max_bandwidth_low);
+    bw_info->pipe_bw_limit[index] = hw_resource->max_pipe_bw;
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWInfoDRM::GetHWResourceInfo(HWResourceInfo *hw_resource) {
+  if (hw_resource_) {
+    *hw_resource = *hw_resource_;
+    return kErrorNone;
+  }
+
+  hw_resource->num_blending_stages = 1;
+  hw_resource->max_pipe_width = 2560;
+  hw_resource->max_cursor_size = 128;
+  hw_resource->max_scale_down = 1;
+  hw_resource->max_scale_up = 1;
+  hw_resource->has_decimation = false;
+  hw_resource->max_bandwidth_low = 9600000;
+  hw_resource->max_bandwidth_high = 9600000;
+  hw_resource->max_pipe_bw = 4500000;
+  hw_resource->max_sde_clk = 412500000;
+  hw_resource->clk_fudge_factor = FLOAT(105) / FLOAT(100);
+  hw_resource->macrotile_nv12_factor = 8;
+  hw_resource->macrotile_factor = 4;
+  hw_resource->linear_factor = 1;
+  hw_resource->scale_factor = 1;
+  hw_resource->extra_fudge_factor = 2;
+  hw_resource->amortizable_threshold = 0;
+  hw_resource->system_overhead_lines = 0;
+  hw_resource->hw_dest_scalar_info.count = 0;
+  hw_resource->hw_dest_scalar_info.max_scale_up = 0;
+  hw_resource->hw_dest_scalar_info.max_input_width = 0;
+  hw_resource->hw_dest_scalar_info.max_output_width = 0;
+  hw_resource->is_src_split = true;
+  hw_resource->perf_calc = false;
+  hw_resource->has_dyn_bw_support = false;
+  hw_resource->has_qseed3 = false;
+  hw_resource->has_concurrent_writeback = false;
+
+  // TODO(user): Deprecate
+  hw_resource->hw_version = kHWMdssVersion5;
+  hw_resource->hw_revision = 0;
+  hw_resource->max_mixer_width = 0;
+  hw_resource->writeback_index = 0;
+  hw_resource->has_bwc = false;
+  hw_resource->has_ubwc = true;
+  hw_resource->has_macrotile = true;
+  hw_resource->separate_rotator = true;
+  hw_resource->has_non_scalar_rgb = false;
+
+  GetSystemInfo(hw_resource);
+  GetHWPlanesInfo(hw_resource);
+  GetWBInfo(hw_resource);
+
+  // Disable destination scalar count to 0 if extension library is not present
+  DynLib extension_lib;
+  if (!extension_lib.Open("libsdmextension.so")) {
+    hw_resource->hw_dest_scalar_info.count = 0;
+  }
+
+  DLOGI("Max plane width = %d", hw_resource->max_pipe_width);
+  DLOGI("Max cursor width = %d", hw_resource->max_cursor_size);
+  DLOGI("Max plane upscale = %d", hw_resource->max_scale_up);
+  DLOGI("Max plane downscale = %d", hw_resource->max_scale_down);
+  DLOGI("Has Decimation = %d", hw_resource->has_decimation);
+  DLOGI("Max Blending Stages = %d", hw_resource->num_blending_stages);
+  DLOGI("Has Source Split = %d", hw_resource->is_src_split);
+  DLOGI("Has QSEED3 = %d", hw_resource->has_qseed3);
+  DLOGI("Has UBWC = %d", hw_resource->has_ubwc);
+  DLOGI("Has Concurrent Writeback = %d", hw_resource->has_concurrent_writeback);
+  DLOGI("Max Low Bw = %" PRIu64 "", hw_resource->max_bandwidth_low);
+  DLOGI("Max High Bw = % " PRIu64 "", hw_resource->max_bandwidth_high);
+  DLOGI("Max Pipe Bw = %" PRIu64 " KBps", hw_resource->max_pipe_bw);
+  DLOGI("MaxSDEClock = % " PRIu64 " Hz", hw_resource->max_sde_clk);
+  DLOGI("Clock Fudge Factor = %f", hw_resource->clk_fudge_factor);
+  DLOGI("Prefill factors:");
+  DLOGI("\tTiled_NV12 = %d", hw_resource->macrotile_nv12_factor);
+  DLOGI("\tTiled = %d", hw_resource->macrotile_factor);
+  DLOGI("\tLinear = %d", hw_resource->linear_factor);
+  DLOGI("\tScale = %d", hw_resource->scale_factor);
+  DLOGI("\tFudge_factor = %d", hw_resource->extra_fudge_factor);
+
+  if (hw_resource->separate_rotator || hw_resource->num_dma_pipe) {
+    GetHWRotatorInfo(hw_resource);
+  }
+
+  if (hw_resource->has_dyn_bw_support) {
+    DisplayError ret = GetDynamicBWLimits(hw_resource);
+    if (ret != kErrorNone) {
+      DLOGE("Failed to read dynamic band width info");
+      return ret;
+    }
+
+    DLOGI("Has Support for multiple bw limits shown below");
+    for (int index = 0; index < kBwModeMax; index++) {
+      DLOGI("Mode-index=%d  total_bw_limit=%d and pipe_bw_limit=%d", index,
+            hw_resource->dyn_bw_info.total_bw_limit[index],
+            hw_resource->dyn_bw_info.pipe_bw_limit[index]);
+    }
+  }
+
+  if (!hw_resource_) {
+    hw_resource_ = new HWResourceInfo();
+    *hw_resource_ = *hw_resource;
+  }
+
+  return kErrorNone;
+}
+
+void HWInfoDRM::GetSystemInfo(HWResourceInfo *hw_resource) {
+  DRMCrtcInfo info;
+  drm_mgr_intf_->GetCrtcInfo(0 /* system_info */, &info);
+  hw_resource->is_src_split = info.has_src_split;
+  hw_resource->has_qseed3 = (info.qseed_version == sde_drm::QSEEDVersion::V3);
+  hw_resource->num_blending_stages = info.max_blend_stages;
+}
+
+void HWInfoDRM::GetHWPlanesInfo(HWResourceInfo *hw_resource) {
+  DRMPlanesInfo info;
+  drm_mgr_intf_->GetPlanesInfo(&info);
+  for (auto &pipe_obj : info.planes) {
+    HWPipeCaps pipe_caps;
+    string name = {};
+    switch (pipe_obj.second) {
+      case DRMPlaneType::RGB:
+        pipe_caps.type = kPipeTypeRGB;
+        hw_resource->num_rgb_pipe++;
+        name = "RGB";
+        break;
+      case DRMPlaneType::VIG:
+        pipe_caps.type = kPipeTypeVIG;
+        hw_resource->num_vig_pipe++;
+        name = "VIG";
+        break;
+      case DRMPlaneType::DMA:
+        pipe_caps.type = kPipeTypeDMA;
+        hw_resource->num_dma_pipe++;
+        name = "DMA";
+        break;
+      case DRMPlaneType::CURSOR:
+        pipe_caps.type = kPipeTypeCursor;
+        hw_resource->num_cursor_pipe++;
+        name = "CURSOR";
+        break;
+      default:
+        break;
+    }
+    pipe_caps.id = pipe_obj.first;
+    pipe_caps.max_rects = 1;
+    DLOGI("%s Pipe : Id %d", name.c_str(), pipe_obj.first);
+    hw_resource->hw_pipes.push_back(std::move(pipe_caps));
+  }
+
+  for (auto &pipe_type : info.types) {
+    vector<LayerBufferFormat> supported_sdm_formats = {};
+    for (auto &fmts : pipe_type.second.formats_supported) {
+      GetSDMFormat(fmts.first, fmts.second, &supported_sdm_formats);
+    }
+
+    HWSubBlockType sub_blk_type = kHWSubBlockMax;
+    switch (pipe_type.first) {
+      case DRMPlaneType::RGB:
+        sub_blk_type = kHWRGBPipe;
+        // These properties are per plane but modeled in SDM as system-wide.
+        hw_resource->max_pipe_width = pipe_type.second.max_linewidth;
+        hw_resource->max_scale_down = pipe_type.second.max_downscale;
+        hw_resource->max_scale_up = pipe_type.second.max_upscale;
+        hw_resource->has_decimation =
+            pipe_type.second.max_horizontal_deci > 1 && pipe_type.second.max_vertical_deci > 1;
+        break;
+      case DRMPlaneType::VIG:
+        sub_blk_type = kHWVIGPipe;
+        // These properties are per plane but modeled in SDM as system-wide.
+        hw_resource->max_pipe_width = pipe_type.second.max_linewidth;
+        hw_resource->max_scale_down = pipe_type.second.max_downscale;
+        hw_resource->max_scale_up = pipe_type.second.max_upscale;
+        hw_resource->has_decimation =
+            pipe_type.second.max_horizontal_deci > 1 && pipe_type.second.max_vertical_deci > 1;
+        break;
+      case DRMPlaneType::DMA:
+        sub_blk_type = kHWDMAPipe;
+        break;
+      case DRMPlaneType::CURSOR:
+        sub_blk_type = kHWCursorPipe;
+        hw_resource->max_cursor_size = pipe_type.second.max_linewidth;
+        break;
+      default:
+        break;
+    }
+
+    if (sub_blk_type != kHWSubBlockMax) {
+      hw_resource->supported_formats_map.erase(sub_blk_type);
+      hw_resource->supported_formats_map.insert(make_pair(sub_blk_type, supported_sdm_formats));
+    }
+  }
+}
+
+void HWInfoDRM::GetWBInfo(HWResourceInfo *hw_resource) {
+  HWSubBlockType sub_blk_type = kHWWBIntfOutput;
+  vector<LayerBufferFormat> supported_sdm_formats = {};
+  sde_drm::DRMDisplayToken token;
+
+  // Fake register
+  if (drm_mgr_intf_->RegisterDisplay(sde_drm::DRMDisplayType::VIRTUAL, &token)) {
+    return;
+  }
+
+  sde_drm::DRMConnectorInfo connector_info;
+  drm_mgr_intf_->GetConnectorInfo(token.conn_id, &connector_info);
+  for (auto &fmts : connector_info.formats_supported) {
+    GetSDMFormat(fmts.first, fmts.second, &supported_sdm_formats);
+  }
+
+  hw_resource->supported_formats_map.erase(sub_blk_type);
+  hw_resource->supported_formats_map.insert(make_pair(sub_blk_type, supported_sdm_formats));
+
+  drm_mgr_intf_->UnregisterDisplay(token);
+}
+
+DisplayError HWInfoDRM::GetHWRotatorInfo(HWResourceInfo *hw_resource) {
+  const uint32_t kMaxV4L2Nodes = 64;
+  bool found = false;
+
+  for (uint32_t i = 0; (i < kMaxV4L2Nodes) && (false == found); i++) {
+    string path = "/sys/class/video4linux/video" + to_string(i) + "/name";
+    Sys::fstream fs(path, fstream::in);
+    if (!fs.is_open()) {
+      continue;
+    }
+
+    string line;
+    if (Sys::getline_(fs, line) && (!strncmp(line.c_str(), "sde_rotator", strlen("sde_rotator")))) {
+      hw_resource->hw_rot_info.device_path = string("/dev/video" + to_string(i));
+      hw_resource->hw_rot_info.num_rotator++;
+      hw_resource->hw_rot_info.type = HWRotatorInfo::ROT_TYPE_V4L2;
+      hw_resource->hw_rot_info.has_downscale = true;
+      // We support only 1 rotator
+      found = true;
+    }
+  }
+
+  DLOGI("V4L2 Rotator: Count = %d, Downscale = %d", hw_resource->hw_rot_info.num_rotator,
+        hw_resource->hw_rot_info.has_downscale);
+
+  return kErrorNone;
+}
+
+void HWInfoDRM::GetSDMFormat(uint32_t drm_format, uint64_t drm_format_modifier,
+                             vector<LayerBufferFormat> *sdm_formats) {
+  vector<LayerBufferFormat> &fmts(*sdm_formats);
+  switch (drm_format) {
+    case DRM_FORMAT_ARGB8888:
+      fmts.push_back(kFormatARGB8888);
+      break;
+    case DRM_FORMAT_RGBA8888:
+      fmts.push_back(drm_format_modifier ? kFormatRGBA8888Ubwc : kFormatRGBA8888);
+      break;
+    case DRM_FORMAT_BGRA8888:
+      fmts.push_back(kFormatBGRA8888);
+      break;
+    case DRM_FORMAT_XRGB8888:
+      fmts.push_back(kFormatXRGB8888);
+      break;
+    case DRM_FORMAT_RGBX8888:
+      fmts.push_back(drm_format_modifier ? kFormatRGBX8888Ubwc : kFormatRGBX8888);
+      break;
+    case DRM_FORMAT_BGRX8888:
+      fmts.push_back(kFormatBGRX8888);
+      break;
+    case DRM_FORMAT_RGBA5551:
+      fmts.push_back(kFormatRGBA5551);
+      break;
+    case DRM_FORMAT_RGBA4444:
+      fmts.push_back(kFormatRGBA4444);
+      break;
+    case DRM_FORMAT_RGB888:
+      fmts.push_back(kFormatRGB888);
+      break;
+    case DRM_FORMAT_BGR888:
+      fmts.push_back(kFormatBGR888);
+      break;
+    case DRM_FORMAT_RGB565:
+      fmts.push_back(drm_format_modifier ? kFormatBGR565Ubwc : kFormatBGR565);
+      break;
+    case DRM_FORMAT_BGR565:
+      fmts.push_back(kFormatBGR565);
+      break;
+    case DRM_FORMAT_RGBA1010102:
+      fmts.push_back(drm_format_modifier ? kFormatRGBA1010102Ubwc : kFormatRGBA1010102);
+      break;
+    case DRM_FORMAT_ARGB2101010:
+      fmts.push_back(kFormatARGB2101010);
+      break;
+    case DRM_FORMAT_RGBX1010102:
+      fmts.push_back(drm_format_modifier ? kFormatRGBX1010102Ubwc : kFormatRGBX1010102);
+      break;
+    case DRM_FORMAT_XRGB2101010:
+      fmts.push_back(kFormatXRGB2101010);
+      break;
+    case DRM_FORMAT_BGRA1010102:
+      fmts.push_back(kFormatBGRA1010102);
+      break;
+    case DRM_FORMAT_ABGR2101010:
+      fmts.push_back(kFormatABGR2101010);
+      break;
+    case DRM_FORMAT_BGRX1010102:
+      fmts.push_back(kFormatBGRX1010102);
+      break;
+    case DRM_FORMAT_XBGR2101010:
+      fmts.push_back(kFormatXBGR2101010);
+      break;
+    /* case DRM_FORMAT_P010:
+         fmts.push_back(drm_format_modifier == (DRM_FORMAT_MOD_QCOM_COMPRESSED |
+       DRM_FORMAT_MOD_QCOM_TIGHT) ?
+         kFormatYCbCr420TP10Ubwc : kFormatYCbCr420P010; */
+    case DRM_FORMAT_YVU420:
+      fmts.push_back(kFormatYCrCb420PlanarStride16);
+      break;
+    case DRM_FORMAT_NV12:
+      if (drm_format_modifier) {
+        fmts.push_back(kFormatYCbCr420SPVenusUbwc);
+      } else {
+        fmts.push_back(kFormatYCbCr420SemiPlanarVenus);
+        fmts.push_back(kFormatYCbCr420SemiPlanar);
+      }
+      break;
+    case DRM_FORMAT_NV21:
+      fmts.push_back(kFormatYCrCb420SemiPlanarVenus);
+      fmts.push_back(kFormatYCrCb420SemiPlanar);
+      break;
+    case DRM_FORMAT_NV16:
+      fmts.push_back(kFormatYCbCr422H2V1SemiPlanar);
+      break;
+    default:
+      break;
+  }
+}
+
+DisplayError HWInfoDRM::GetFirstDisplayInterfaceType(HWDisplayInterfaceInfo *hw_disp_info) {
+  hw_disp_info->type = kPrimary;
+  hw_disp_info->is_connected = true;
+
+  return kErrorNone;
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/drm/hw_info_drm.h b/sdm/libs/core/drm/hw_info_drm.h
new file mode 100644
index 0000000..143cbdf
--- /dev/null
+++ b/sdm/libs/core/drm/hw_info_drm.h
@@ -0,0 +1,70 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __HW_INFO_DRM_H__
+#define __HW_INFO_DRM_H__
+
+#include <core/core_interface.h>
+#include <core/sdm_types.h>
+#include <drm_interface.h>
+#include <private/hw_info_types.h>
+#include <bitset>
+#include <vector>
+
+#include "hw_info_interface.h"
+
+namespace sdm {
+
+class HWInfoDRM: public HWInfoInterface {
+ public:
+  HWInfoDRM();
+  virtual DisplayError GetHWResourceInfo(HWResourceInfo *hw_resource);
+  virtual DisplayError GetFirstDisplayInterfaceType(HWDisplayInterfaceInfo *hw_disp_info);
+
+ private:
+  DisplayError GetHWRotatorInfo(HWResourceInfo *hw_resource);
+  void GetSystemInfo(HWResourceInfo *hw_resource);
+  void GetHWPlanesInfo(HWResourceInfo *hw_resource);
+  void GetWBInfo(HWResourceInfo *hw_resource);
+  DisplayError GetDynamicBWLimits(HWResourceInfo *hw_resource);
+  void GetSDMFormat(uint32_t drm_format, uint64_t drm_format_modifier,
+                    std::vector<LayerBufferFormat> *sdm_formats);
+
+  sde_drm::DRMManagerInterface *drm_mgr_intf_ = {};
+  bool default_mode_ = false;
+
+  // TODO(user): Read Mdss version from the driver
+  static const int kHWMdssVersion5 = 500;  // MDSS_V5
+  static const int kMaxStringLength = 1024;
+  static HWResourceInfo *hw_resource_;
+};
+
+}  // namespace sdm
+
+#endif  // __HW_INFO_DRM_H__
diff --git a/sdm/libs/core/fb/hw_device.cpp b/sdm/libs/core/fb/hw_device.cpp
index f6c9ae0..10ff6fb 100644
--- a/sdm/libs/core/fb/hw_device.cpp
+++ b/sdm/libs/core/fb/hw_device.cpp
@@ -61,46 +61,6 @@
 
 namespace sdm {
 
-DisplayError HWInterface::Create(DisplayType type, HWInfoInterface *hw_info_intf,
-                                        BufferSyncHandler *buffer_sync_handler,
-                                        HWInterface **intf) {
-  DisplayError error = kErrorNone;
-  HWDevice *hw = nullptr;
-
-  switch (type) {
-    case kPrimary:
-      hw = new HWPrimary(buffer_sync_handler, hw_info_intf);
-      break;
-    case kHDMI:
-      hw = new HWHDMI(buffer_sync_handler, hw_info_intf);
-      break;
-    case kVirtual:
-      hw = new HWVirtual(buffer_sync_handler, hw_info_intf);
-      break;
-    default:
-      DLOGE("Undefined display type");
-      return kErrorUndefined;
-  }
-
-  error = hw->Init();
-  if (error != kErrorNone) {
-    delete hw;
-    DLOGE("Init on HW Intf type %d failed", type);
-    return error;
-  }
-  *intf = hw;
-
-  return error;
-}
-
-DisplayError HWInterface::Destroy(HWInterface *intf) {
-  HWDevice *hw = static_cast<HWDevice *>(intf);
-  hw->Deinit();
-  delete hw;
-
-  return kErrorNone;
-}
-
 HWDevice::HWDevice(BufferSyncHandler *buffer_sync_handler)
   : fb_node_index_(-1), fb_path_("/sys/devices/virtual/graphics/fb"),
     buffer_sync_handler_(buffer_sync_handler), synchronous_commit_(false) {
@@ -613,6 +573,7 @@
   case kFormatRGBX8888Ubwc:             *target = MDP_RGBX_8888_UBWC;    break;
   case kFormatBGR565Ubwc:               *target = MDP_RGB_565_UBWC;      break;
   case kFormatYCbCr420SPVenusUbwc:      *target = MDP_Y_CBCR_H2V2_UBWC;  break;
+  case kFormatCbYCrY422H2V1Packed:      *target = MDP_CBYCRY_H2V1;       break;
   case kFormatRGBA1010102:              *target = MDP_RGBA_1010102;      break;
   case kFormatARGB2101010:              *target = MDP_ARGB_2101010;      break;
   case kFormatRGBX1010102:              *target = MDP_RGBX_1010102;      break;
@@ -683,6 +644,7 @@
     *target = width;
     break;
   case kFormatYCbCr422H2V1Packed:
+  case kFormatCbYCrY422H2V1Packed:
   case kFormatYCrCb422H2V1SemiPlanar:
   case kFormatYCrCb422H1V2SemiPlanar:
   case kFormatYCbCr422H2V1SemiPlanar:
diff --git a/sdm/libs/core/fb/hw_events.cpp b/sdm/libs/core/fb/hw_events.cpp
index 4015796..ea8034f 100644
--- a/sdm/libs/core/fb/hw_events.cpp
+++ b/sdm/libs/core/fb/hw_events.cpp
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2015 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
@@ -49,55 +49,28 @@
 
 namespace sdm {
 
-DisplayError HWEventsInterface::Create(int fb_num, HWEventHandler *event_handler,
-                                       std::vector<const char *> *event_list,
-                                       HWEventsInterface **intf) {
-  DisplayError error = kErrorNone;
-  HWEvents *hw_events = NULL;
-
-  hw_events = new HWEvents();
-  error = hw_events->Init(fb_num, event_handler, event_list);
-  if (error != kErrorNone) {
-    delete hw_events;
-  } else {
-    *intf = hw_events;
-  }
-
-  return error;
-}
-
-DisplayError HWEventsInterface::Destroy(HWEventsInterface *intf) {
-  HWEvents *hw_events = static_cast<HWEvents *>(intf);
-
-  if (hw_events) {
-    hw_events->Deinit();
-    delete hw_events;
-  }
-
-  return kErrorNone;
-}
-
 pollfd HWEvents::InitializePollFd(HWEventData *event_data) {
   char node_path[kMaxStringLength] = {0};
   char data[kMaxStringLength] = {0};
   pollfd poll_fd = {0};
   poll_fd.fd = -1;
 
-  if (!strncmp(event_data->event_name, "thread_exit", strlen("thread_exit"))) {
+  if (event_data->event_type == HWEvent::EXIT) {
     // Create an eventfd to be used to unblock the poll system call when
     // a thread is exiting.
     poll_fd.fd = Sys::eventfd_(0, 0);
     poll_fd.events |= POLLIN;
     exit_fd_ = poll_fd.fd;
   } else {
-    snprintf(node_path, sizeof(node_path), "%s%d/%s", fb_path_, fb_num_, event_data->event_name);
+    snprintf(node_path, sizeof(node_path), "%s%d/%s", fb_path_, fb_num_,
+             map_event_to_node_[event_data->event_type]);
     poll_fd.fd = Sys::open_(node_path, O_RDONLY);
     poll_fd.events |= POLLPRI | POLLERR;
   }
 
   if (poll_fd.fd < 0) {
-    DLOGW("open failed for display=%d event=%s, error=%s", fb_num_, event_data->event_name,
-          strerror(errno));
+    DLOGW("open failed for display=%d event=%s, error=%s", fb_num_,
+          map_event_to_node_[event_data->event_type], strerror(errno));
     return poll_fd;
   }
 
@@ -107,49 +80,58 @@
   return poll_fd;
 }
 
-DisplayError HWEvents::SetEventParser(const char *event_name, HWEventData *event_data) {
+DisplayError HWEvents::SetEventParser(HWEvent event_type, HWEventData *event_data) {
   DisplayError error = kErrorNone;
-
-  if (!strncmp(event_name, "vsync_event", strlen("vsync_event"))) {
-    event_data->event_parser = &HWEvents::HandleVSync;
-  } else if (!strncmp(event_name, "show_blank_event", strlen("show_blank_event"))) {
-    event_data->event_parser = &HWEvents::HandleBlank;
-  } else if (!strncmp(event_name, "idle_notify", strlen("idle_notify"))) {
-    event_data->event_parser = &HWEvents::HandleIdleTimeout;
-  } else if (!strncmp(event_name, "msm_fb_thermal_level", strlen("msm_fb_thermal_level"))) {
-    event_data->event_parser = &HWEvents::HandleThermal;
-  } else if (!strncmp(event_name, "cec/rd_msg", strlen("cec/rd_msg"))) {
-    event_data->event_parser = &HWEvents::HandleCECMessage;
-  } else if (!strncmp(event_name, "thread_exit", strlen("thread_exit"))) {
-    event_data->event_parser = &HWEvents::HandleThreadExit;
-  } else {
-    error = kErrorParameters;
+  switch (event_type) {
+    case HWEvent::VSYNC:
+      event_data->event_parser = &HWEvents::HandleVSync;
+      break;
+    case HWEvent::IDLE_NOTIFY:
+      event_data->event_parser = &HWEvents::HandleIdleTimeout;
+      break;
+    case HWEvent::CEC_READ_MESSAGE:
+      event_data->event_parser = &HWEvents::HandleCECMessage;
+      break;
+    case HWEvent::EXIT:
+      event_data->event_parser = &HWEvents::HandleThreadExit;
+      break;
+    case HWEvent::SHOW_BLANK_EVENT:
+      event_data->event_parser = &HWEvents::HandleBlank;
+      break;
+    case HWEvent::THERMAL_LEVEL:
+      event_data->event_parser = &HWEvents::HandleThermal;
+      break;
+    default:
+      error = kErrorParameters;
+      break;
   }
 
   return error;
 }
 
 void HWEvents::PopulateHWEventData() {
-  for (uint32_t i = 0; i < event_list_->size(); i++) {
-    const char *event_name = event_list_->at(i);
+  for (uint32_t i = 0; i < event_list_.size(); i++) {
     HWEventData event_data;
-    event_data.event_name = event_name;
-    SetEventParser(event_name, &event_data);
+    event_data.event_type = event_list_[i];
+    SetEventParser(event_list_[i], &event_data);
     poll_fds_[i] = InitializePollFd(&event_data);
     event_data_list_.push_back(event_data);
   }
 }
 
 DisplayError HWEvents::Init(int fb_num, HWEventHandler *event_handler,
-                            vector<const char *> *event_list) {
+                            const vector<HWEvent> &event_list) {
   if (!event_handler)
     return kErrorParameters;
 
   event_handler_ = event_handler;
   fb_num_ = fb_num;
   event_list_ = event_list;
-  poll_fds_.resize(event_list_->size());
+  poll_fds_.resize(event_list_.size());
   event_thread_name_ += " - " + std::to_string(fb_num_);
+  map_event_to_node_ = {{HWEvent::VSYNC, "vsync_event"}, {HWEvent::EXIT, "thread_exit"},
+    {HWEvent::IDLE_NOTIFY, "idle_notify"}, {HWEvent::SHOW_BLANK_EVENT, "show_blank_event"},
+    {HWEvent::CEC_READ_MESSAGE, "cec/rd_msg"}, {HWEvent::THERMAL_LEVEL, "msm_fb_thermal_level"}};
 
   PopulateHWEventData();
 
@@ -173,7 +155,7 @@
 
   pthread_join(event_thread_, NULL);
 
-  for (uint32_t i = 0; i < event_list_->size(); i++) {
+  for (uint32_t i = 0; i < event_list_.size(); i++) {
     Sys::close_(poll_fds_[i].fd);
     poll_fds_[i].fd = -1;
   }
@@ -196,17 +178,17 @@
   setpriority(PRIO_PROCESS, 0, kThreadPriorityUrgent);
 
   while (!exit_threads_) {
-    int error = Sys::poll_(poll_fds_.data(), UINT32(event_list_->size()), -1);
+    int error = Sys::poll_(poll_fds_.data(), UINT32(event_list_.size()), -1);
 
     if (error <= 0) {
       DLOGW("poll failed. error = %s", strerror(errno));
       continue;
     }
 
-    for (uint32_t event = 0; event < event_list_->size(); event++) {
+    for (uint32_t event = 0; event < event_list_.size(); event++) {
       pollfd &poll_fd = poll_fds_[event];
 
-      if (!strncmp(event_list_->at(event), "thread_exit", strlen("thread_exit"))) {
+      if (event_list_.at(event) == HWEvent::EXIT) {
         if ((poll_fd.revents & POLLIN) && (Sys::read_(poll_fd.fd, data, kMaxStringLength) > 0)) {
           (this->*(event_data_list_[event]).event_parser)(data);
         }
@@ -253,4 +235,3 @@
 }
 
 }  // namespace sdm
-
diff --git a/sdm/libs/core/fb/hw_events.h b/sdm/libs/core/fb/hw_events.h
index bcc5ef6..e024924 100644
--- a/sdm/libs/core/fb/hw_events.h
+++ b/sdm/libs/core/fb/hw_events.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2015 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -37,12 +37,13 @@
 namespace sdm {
 
 using std::vector;
+using std::map;
 
 class HWEvents : public HWEventsInterface {
  public:
-  DisplayError Init(int fb_num, HWEventHandler *event_handler,
-                    vector<const char *> *event_list);
-  DisplayError Deinit();
+  virtual DisplayError Init(int fb_num, HWEventHandler *event_handler,
+                            const vector<HWEvent> &event_list);
+  virtual DisplayError Deinit();
 
  private:
   static const int kMaxStringLength = 1024;
@@ -50,8 +51,8 @@
   typedef void (HWEvents::*EventParser)(char *);
 
   struct HWEventData {
-    const char* event_name = NULL;
-    EventParser event_parser = NULL;
+    HWEvent event_type {};
+    EventParser event_parser {};
   };
 
   static void* DisplayEventThread(void *context);
@@ -63,14 +64,15 @@
   void HandleCECMessage(char *data);
   void HandleThreadExit(char *data) { }
   void PopulateHWEventData();
-  DisplayError SetEventParser(const char *event_name, HWEventData *event_data);
+  DisplayError SetEventParser(HWEvent event_type, HWEventData *event_data);
   pollfd InitializePollFd(HWEventData *event_data);
 
-  HWEventHandler *event_handler_ = NULL;
-  vector<const char *> *event_list_ = NULL;
+  HWEventHandler *event_handler_ = {};
+  vector<HWEvent> event_list_ = {};
   vector<HWEventData> event_data_list_ = {};
-  vector<pollfd> poll_fds_;
-  pthread_t event_thread_;
+  vector<pollfd> poll_fds_ = {};
+  map<HWEvent, const char *> map_event_to_node_ = {};
+  pthread_t event_thread_ = {};
   std::string event_thread_name_ = "SDM_EventThread";
   bool exit_threads_ = false;
   const char* fb_path_ = "/sys/devices/virtual/graphics/fb";
diff --git a/sdm/libs/core/fb/hw_info.cpp b/sdm/libs/core/fb/hw_info.cpp
index 2931638..d898cd2 100644
--- a/sdm/libs/core/fb/hw_info.cpp
+++ b/sdm/libs/core/fb/hw_info.cpp
@@ -86,27 +86,6 @@
   return 0;
 }
 
-DisplayError HWInfoInterface::Create(HWInfoInterface **intf) {
-  DisplayError error = kErrorNone;
-  HWInfo *hw_info = NULL;
-
-  hw_info = new HWInfo();
-  if (!hw_info) {
-    error = kErrorMemory;
-  } else {
-    *intf = hw_info;
-  }
-
-  return error;
-}
-
-DisplayError HWInfoInterface::Destroy(HWInfoInterface *intf) {
-  HWInfo *hw_info = static_cast<HWInfo *>(intf);
-  delete hw_info;
-
-  return kErrorNone;
-}
-
 DisplayError HWInfo::GetDynamicBWLimits(HWResourceInfo *hw_resource) {
   Sys::fstream fs(kBWModeBitmap, fstream::in);
   if (!fs.is_open()) {
diff --git a/sdm/libs/core/fb/hw_primary.cpp b/sdm/libs/core/fb/hw_primary.cpp
index a381d7f..3fdc8b2 100644
--- a/sdm/libs/core/fb/hw_primary.cpp
+++ b/sdm/libs/core/fb/hw_primary.cpp
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2015 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
@@ -250,8 +250,8 @@
       (FLOAT(var_screeninfo.yres) * 25.4f) / FLOAT(var_screeninfo.height);
   display_attributes_.fps = meta_data.data.panel_frame_rate;
   display_attributes_.vsync_period_ns = UINT32(1000000000L / display_attributes_.fps);
-  display_attributes_.is_device_split = (hw_panel_info_.split_info.left_split ||
-      (var_screeninfo.xres > hw_resource_.max_mixer_width)) ? true : false;
+  display_attributes_.is_device_split = (hw_panel_info_.split_info.right_split ||
+      (var_screeninfo.xres > hw_resource_.max_mixer_width));
   display_attributes_.h_total += (display_attributes_.is_device_split ||
     hw_panel_info_.ping_pong_split)? h_blanking : 0;
 
diff --git a/sdm/libs/core/hw_events_interface.cpp b/sdm/libs/core/hw_events_interface.cpp
new file mode 100644
index 0000000..ed62b86
--- /dev/null
+++ b/sdm/libs/core/hw_events_interface.cpp
@@ -0,0 +1,75 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <utils/utils.h>
+#include <vector>
+
+#include "hw_events_interface.h"
+#include "fb/hw_events.h"
+#ifdef COMPILE_DRM
+#include "drm/hw_events_drm.h"
+#endif
+
+#define __CLASS__ "HWEventsInterface"
+
+namespace sdm {
+
+DisplayError HWEventsInterface::Create(int display_type, HWEventHandler *event_handler,
+                                       const std::vector<HWEvent> &event_list,
+                                       HWEventsInterface **intf) {
+  DisplayError error = kErrorNone;
+  HWEventsInterface *hw_events = nullptr;
+  if (GetDriverType() == DriverType::FB) {
+    hw_events = new HWEvents();
+  } else {
+#ifdef COMPILE_DRM
+    hw_events = new HWEventsDRM();
+#endif
+  }
+
+  error = hw_events->Init(display_type, event_handler, event_list);
+  if (error != kErrorNone) {
+    delete hw_events;
+  } else {
+    *intf = hw_events;
+  }
+
+  return error;
+}
+
+DisplayError HWEventsInterface::Destroy(HWEventsInterface *intf) {
+  if (intf) {
+    intf->Deinit();
+    delete intf;
+  }
+
+  return kErrorNone;
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/hw_events_interface.h b/sdm/libs/core/hw_events_interface.h
index a133a3a..bcb7d43 100644
--- a/sdm/libs/core/hw_events_interface.h
+++ b/sdm/libs/core/hw_events_interface.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -32,10 +32,25 @@
 
 namespace sdm {
 
+class HWEventHandler;
+
+enum HWEvent {
+  VSYNC = 0,
+  EXIT,
+  IDLE_NOTIFY,
+  CEC_READ_MESSAGE,
+  SHOW_BLANK_EVENT,
+  THERMAL_LEVEL,
+};
+
 class HWEventsInterface {
  public:
-  static DisplayError Create(int fb_num, HWEventHandler *event_handler,
-                             std::vector<const char *> *event_list, HWEventsInterface **intf);
+  virtual DisplayError Init(int display_type, HWEventHandler *event_handler,
+                            const std::vector<HWEvent> &event_list) = 0;
+  virtual DisplayError Deinit() = 0;
+
+  static DisplayError Create(int display_type, HWEventHandler *event_handler,
+                             const std::vector<HWEvent> &event_list, HWEventsInterface **intf);
   static DisplayError Destroy(HWEventsInterface *intf);
 
  protected:
diff --git a/sdm/libs/core/hw_info_interface.cpp b/sdm/libs/core/hw_info_interface.cpp
new file mode 100644
index 0000000..1773fe5
--- /dev/null
+++ b/sdm/libs/core/hw_info_interface.cpp
@@ -0,0 +1,62 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <utils/utils.h>
+
+#include "hw_info_interface.h"
+#include "fb/hw_info.h"
+#ifdef COMPILE_DRM
+#include "drm/hw_info_drm.h"
+#endif
+
+#define __CLASS__ "HWInfoInterface"
+
+namespace sdm {
+
+DisplayError HWInfoInterface::Create(HWInfoInterface **intf) {
+  if (GetDriverType() == DriverType::FB) {
+    *intf = new HWInfo();
+  } else {
+#ifdef COMPILE_DRM
+    *intf = new HWInfoDRM();
+#endif
+  }
+
+  return kErrorNone;
+}
+
+DisplayError HWInfoInterface::Destroy(HWInfoInterface *intf) {
+  if (intf) {
+    delete intf;
+  }
+
+  return kErrorNone;
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/hw_interface.cpp b/sdm/libs/core/hw_interface.cpp
new file mode 100644
index 0000000..b328831
--- /dev/null
+++ b/sdm/libs/core/hw_interface.cpp
@@ -0,0 +1,102 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <utils/debug.h>
+#include <utils/utils.h>
+
+#include "hw_interface.h"
+#include "fb/hw_device.h"
+#include "fb/hw_primary.h"
+#include "fb/hw_hdmi.h"
+#include "fb/hw_virtual.h"
+#ifdef COMPILE_DRM
+#include "drm/hw_device_drm.h"
+#endif
+
+#define __CLASS__ "HWInterface"
+
+namespace sdm {
+
+DisplayError HWInterface::Create(DisplayType type, HWInfoInterface *hw_info_intf,
+                                 BufferSyncHandler *buffer_sync_handler,
+                                 HWInterface **intf) {
+  DisplayError error = kErrorNone;
+  HWInterface *hw = nullptr;
+  DriverType driver_type = GetDriverType();
+
+  switch (type) {
+    case kPrimary:
+      if (driver_type == DriverType::FB) {
+        hw = new HWPrimary(buffer_sync_handler, hw_info_intf);
+      } else {
+#ifdef COMPILE_DRM
+        hw = new HWDeviceDRM(buffer_sync_handler, hw_info_intf);
+#endif
+      }
+      break;
+    case kHDMI:
+      if (driver_type == DriverType::FB) {
+        hw = new HWHDMI(buffer_sync_handler, hw_info_intf);
+      } else {
+        return kErrorNotSupported;
+      }
+      break;
+    case kVirtual:
+      if (driver_type == DriverType::FB) {
+        hw = new HWVirtual(buffer_sync_handler, hw_info_intf);
+      } else {
+        return kErrorNotSupported;
+      }
+      break;
+    default:
+      DLOGE("Undefined display type");
+      return kErrorUndefined;
+  }
+
+  error = hw->Init();
+  if (error != kErrorNone) {
+    delete hw;
+    DLOGE("Init on HW Intf type %d failed", type);
+    return error;
+  }
+  *intf = hw;
+
+  return error;
+}
+
+DisplayError HWInterface::Destroy(HWInterface *intf) {
+  if (intf) {
+    intf->Deinit();
+    delete intf;
+  }
+
+  return kErrorNone;
+}
+
+}  // namespace sdm
diff --git a/sdm/libs/core/hw_interface.h b/sdm/libs/core/hw_interface.h
index da3ac4d..2e082ae 100644
--- a/sdm/libs/core/hw_interface.h
+++ b/sdm/libs/core/hw_interface.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -70,6 +70,8 @@
                              BufferSyncHandler *buffer_sync_handler, HWInterface **intf);
   static DisplayError Destroy(HWInterface *intf);
 
+  virtual DisplayError Init() = 0;
+  virtual DisplayError Deinit() = 0;
   virtual DisplayError GetActiveConfig(uint32_t *active_config) = 0;
   virtual DisplayError GetNumDisplayAttributes(uint32_t *count) = 0;
   virtual DisplayError GetDisplayAttributes(uint32_t index,
diff --git a/sdm/libs/core/strategy.cpp b/sdm/libs/core/strategy.cpp
index 97a6cc3..aa89e64 100644
--- a/sdm/libs/core/strategy.cpp
+++ b/sdm/libs/core/strategy.cpp
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
@@ -177,9 +177,7 @@
   float layer_mixer_width = mixer_attributes_.width;
   float layer_mixer_height = mixer_attributes_.height;
 
-  if (!hw_resource_info_.is_src_split &&
-     ((layer_mixer_width > hw_resource_info_.max_mixer_width) ||
-     ((hw_panel_info_.is_primary_panel) && hw_panel_info_.split_info.right_split))) {
+  if (!hw_resource_info_.is_src_split && display_attributes_.is_device_split) {
     split_display = true;
   }
 
diff --git a/sdm/libs/hwc/hwc_buffer_allocator.cpp b/sdm/libs/hwc/hwc_buffer_allocator.cpp
index bda316f..7e32d65 100644
--- a/sdm/libs/hwc/hwc_buffer_allocator.cpp
+++ b/sdm/libs/hwc/hwc_buffer_allocator.cpp
@@ -211,6 +211,7 @@
   case kFormatYCrCb420SemiPlanar:       *target = HAL_PIXEL_FORMAT_YCrCb_420_SP;          break;
   case kFormatYCbCr420SemiPlanar:       *target = HAL_PIXEL_FORMAT_YCbCr_420_SP;          break;
   case kFormatYCbCr422H2V1Packed:       *target = HAL_PIXEL_FORMAT_YCbCr_422_I;           break;
+  case kFormatCbYCrY422H2V1Packed:      *target = HAL_PIXEL_FORMAT_CbYCrY_422_I;          break;
   case kFormatYCbCr422H2V1SemiPlanar:   *target = HAL_PIXEL_FORMAT_YCbCr_422_SP;          break;
   case kFormatYCbCr420SemiPlanarVenus:  *target = HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS;    break;
   case kFormatYCrCb420SemiPlanarVenus:  *target = HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS;    break;
diff --git a/sdm/libs/hwc/hwc_display.cpp b/sdm/libs/hwc/hwc_display.cpp
index 2f0c42b..aff6bbf 100644
--- a/sdm/libs/hwc/hwc_display.cpp
+++ b/sdm/libs/hwc/hwc_display.cpp
@@ -37,6 +37,7 @@
 #include <utils/debug.h>
 #include <sync/sync.h>
 #include <cutils/properties.h>
+#include <qd_utils.h>
 #include <map>
 #include <utility>
 #include <vector>
@@ -517,6 +518,7 @@
     layer_buffer.planes[0].offset = pvt_handle->offset;
     layer_buffer.planes[0].stride = UINT32(pvt_handle->width);
     layer_buffer.size = pvt_handle->size;
+    layer_buffer.fb_id = pvt_handle->fb_id;
   }
 
   // if swapinterval property is set to 0 then close and reset the acquireFd
@@ -1014,6 +1016,7 @@
   case HAL_PIXEL_FORMAT_YCbCr_420_SP:             format = kFormatYCbCr420SemiPlanar;       break;
   case HAL_PIXEL_FORMAT_YCbCr_422_SP:             format = kFormatYCbCr422H2V1SemiPlanar;   break;
   case HAL_PIXEL_FORMAT_YCbCr_422_I:              format = kFormatYCbCr422H2V1Packed;       break;
+  case HAL_PIXEL_FORMAT_CbYCrY_422_I:             format = kFormatCbYCrY422H2V1Packed;      break;
   case HAL_PIXEL_FORMAT_RGBA_1010102:             format = kFormatRGBA1010102;              break;
   case HAL_PIXEL_FORMAT_ARGB_2101010:             format = kFormatARGB2101010;              break;
   case HAL_PIXEL_FORMAT_RGBX_1010102:             format = kFormatRGBX1010102;              break;
@@ -1071,7 +1074,7 @@
 
       snprintf(dump_file_name, sizeof(dump_file_name), "%s/input_layer%d_%dx%d_%s_frame%d.raw",
                dir_path, i, pvt_handle->width, pvt_handle->height,
-               GetHALPixelFormatString(pvt_handle->format), dump_frame_index_);
+               qdutils::GetHALPixelFormatString(pvt_handle->format), dump_frame_index_);
 
       FILE* fp = fopen(dump_file_name, "w+");
       if (fp) {
@@ -1127,81 +1130,6 @@
   }
 }
 
-const char *HWCDisplay::GetHALPixelFormatString(int format) {
-  switch (format) {
-  case HAL_PIXEL_FORMAT_RGBA_8888:
-    return "RGBA_8888";
-  case HAL_PIXEL_FORMAT_RGBX_8888:
-    return "RGBX_8888";
-  case HAL_PIXEL_FORMAT_RGB_888:
-    return "RGB_888";
-  case HAL_PIXEL_FORMAT_RGB_565:
-    return "RGB_565";
-  case HAL_PIXEL_FORMAT_BGR_565:
-    return "BGR_565";
-  case HAL_PIXEL_FORMAT_BGRA_8888:
-    return "BGRA_8888";
-  case HAL_PIXEL_FORMAT_RGBA_5551:
-    return "RGBA_5551";
-  case HAL_PIXEL_FORMAT_RGBA_4444:
-    return "RGBA_4444";
-  case HAL_PIXEL_FORMAT_YV12:
-    return "YV12";
-  case HAL_PIXEL_FORMAT_YCbCr_422_SP:
-    return "YCbCr_422_SP_NV16";
-  case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-    return "YCrCb_420_SP_NV21";
-  case HAL_PIXEL_FORMAT_YCbCr_422_I:
-    return "YCbCr_422_I_YUY2";
-  case HAL_PIXEL_FORMAT_YCrCb_422_I:
-    return "YCrCb_422_I_YVYU";
-  case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
-    return "NV12_ENCODEABLE";
-  case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
-    return "YCbCr_420_SP_TILED_TILE_4x2";
-  case HAL_PIXEL_FORMAT_YCbCr_420_SP:
-    return "YCbCr_420_SP";
-  case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
-    return "YCrCb_420_SP_ADRENO";
-  case HAL_PIXEL_FORMAT_YCrCb_422_SP:
-    return "YCrCb_422_SP";
-  case HAL_PIXEL_FORMAT_R_8:
-    return "R_8";
-  case HAL_PIXEL_FORMAT_RG_88:
-    return "RG_88";
-  case HAL_PIXEL_FORMAT_INTERLACE:
-    return "INTERLACE";
-  case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
-    return "YCbCr_420_SP_VENUS";
-  case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
-    return "YCrCb_420_SP_VENUS";
-  case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
-    return "YCbCr_420_SP_VENUS_UBWC";
-  case HAL_PIXEL_FORMAT_RGBA_1010102:
-    return "RGBA_1010102";
-  case HAL_PIXEL_FORMAT_ARGB_2101010:
-    return "ARGB_2101010";
-  case HAL_PIXEL_FORMAT_RGBX_1010102:
-    return "RGBX_1010102";
-  case HAL_PIXEL_FORMAT_XRGB_2101010:
-    return "XRGB_2101010";
-  case HAL_PIXEL_FORMAT_BGRA_1010102:
-    return "BGRA_1010102";
-  case HAL_PIXEL_FORMAT_ABGR_2101010:
-    return "ABGR_2101010";
-  case HAL_PIXEL_FORMAT_BGRX_1010102:
-    return "BGRX_1010102";
-  case HAL_PIXEL_FORMAT_XBGR_2101010:
-    return "XBGR_2101010";
-  case HAL_PIXEL_FORMAT_YCbCr_420_P010:
-    return "YCbCr_420_P010";
-  case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
-    return "YCbCr_420_TP10_UBWC";
-  default:
-    return "Unknown_format";
-  }
-}
-
 const char *HWCDisplay::GetDisplayString() {
   switch (type_) {
   case kPrimary:
diff --git a/sdm/libs/hwc/hwc_display.h b/sdm/libs/hwc/hwc_display.h
index 8da8516..5652996 100644
--- a/sdm/libs/hwc/hwc_display.h
+++ b/sdm/libs/hwc/hwc_display.h
@@ -192,7 +192,6 @@
   int SetFormat(const int32_t &source, const int flags, LayerBufferFormat *target);
   void SetLayerS3DMode(const LayerBufferS3DFormat &source, uint32_t *target);
   LayerBufferFormat GetSDMFormat(const int32_t &source, const int flags);
-  const char *GetHALPixelFormatString(int format);
   const char *GetDisplayString();
   void MarkLayersForGPUBypass(hwc_display_contents_1_t *content_list);
   virtual void ApplyScanAdjustment(hwc_rect_t *display_frame);
diff --git a/sdm/libs/hwc/hwc_tonemapper.cpp b/sdm/libs/hwc/hwc_tonemapper.cpp
index 93ff452..0ceb2e5 100644
--- a/sdm/libs/hwc/hwc_tonemapper.cpp
+++ b/sdm/libs/hwc/hwc_tonemapper.cpp
@@ -140,11 +140,13 @@
           // then SDM marks them for SDE Composition because the cached FB layer gets displayed.
           // GPU count will be 0 in this case. Try to use the existing tone-mapped frame buffer.
           // No ToneMap/Blit is required. Just update the buffer & acquire fence fd of FB layer.
-          ToneMapSession *fb_tone_map_session = tone_map_sessions_.at(fb_session_index_);
-          fb_tone_map_session->UpdateBuffer(-1 /* acquire_fence */, &layer->input_buffer);
-          fb_tone_map_session->layer_index_ = INT(i);
-          fb_tone_map_session->acquired_ = true;
-          return 0;
+          if (!tone_map_sessions_.empty()) {
+            ToneMapSession *fb_tone_map_session = tone_map_sessions_.at(fb_session_index_);
+            fb_tone_map_session->UpdateBuffer(-1 /* acquire_fence */, &layer->input_buffer);
+            fb_tone_map_session->layer_index_ = INT(i);
+            fb_tone_map_session->acquired_ = true;
+            return 0;
+          }
         }
         error = AcquireToneMapSession(layer, &session_index);
         fb_session_index_ = session_index;
@@ -223,7 +225,6 @@
       delete tone_map_sessions_.back();
       tone_map_sessions_.pop_back();
     }
-    TonemapperFactory_Destroy();
     fb_session_index_ = 0;
   }
 }
diff --git a/sdm/libs/hwc2/hwc_display.cpp b/sdm/libs/hwc2/hwc_display.cpp
index 3b0015d..382e234 100644
--- a/sdm/libs/hwc2/hwc_display.cpp
+++ b/sdm/libs/hwc2/hwc_display.cpp
@@ -27,6 +27,7 @@
 #include <utils/debug.h>
 #include <utils/formats.h>
 #include <utils/rect.h>
+#include <qd_utils.h>
 
 #include <algorithm>
 #include <map>
@@ -1164,7 +1165,7 @@
 
       snprintf(dump_file_name, sizeof(dump_file_name), "%s/input_layer%d_%dx%d_%s_frame%d.raw",
                dir_path, i, pvt_handle->width, pvt_handle->height,
-               GetHALPixelFormatString(pvt_handle->format), dump_frame_index_);
+               qdutils::GetHALPixelFormatString(pvt_handle->format), dump_frame_index_);
 
       FILE *fp = fopen(dump_file_name, "w+");
       if (fp) {
@@ -1219,81 +1220,6 @@
   }
 }
 
-const char *HWCDisplay::GetHALPixelFormatString(int format) {
-  switch (format) {
-    case HAL_PIXEL_FORMAT_RGBA_8888:
-      return "RGBA_8888";
-    case HAL_PIXEL_FORMAT_RGBX_8888:
-      return "RGBX_8888";
-    case HAL_PIXEL_FORMAT_RGB_888:
-      return "RGB_888";
-    case HAL_PIXEL_FORMAT_RGB_565:
-      return "RGB_565";
-    case HAL_PIXEL_FORMAT_BGR_565:
-      return "BGR_565";
-    case HAL_PIXEL_FORMAT_BGRA_8888:
-      return "BGRA_8888";
-    case HAL_PIXEL_FORMAT_RGBA_5551:
-      return "RGBA_5551";
-    case HAL_PIXEL_FORMAT_RGBA_4444:
-      return "RGBA_4444";
-    case HAL_PIXEL_FORMAT_YV12:
-      return "YV12";
-    case HAL_PIXEL_FORMAT_YCbCr_422_SP:
-      return "YCbCr_422_SP_NV16";
-    case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-      return "YCrCb_420_SP_NV21";
-    case HAL_PIXEL_FORMAT_YCbCr_422_I:
-      return "YCbCr_422_I_YUY2";
-    case HAL_PIXEL_FORMAT_YCrCb_422_I:
-      return "YCrCb_422_I_YVYU";
-    case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
-      return "NV12_ENCODEABLE";
-    case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
-      return "YCbCr_420_SP_TILED_TILE_4x2";
-    case HAL_PIXEL_FORMAT_YCbCr_420_SP:
-      return "YCbCr_420_SP";
-    case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
-      return "YCrCb_420_SP_ADRENO";
-    case HAL_PIXEL_FORMAT_YCrCb_422_SP:
-      return "YCrCb_422_SP";
-    case HAL_PIXEL_FORMAT_R_8:
-      return "R_8";
-    case HAL_PIXEL_FORMAT_RG_88:
-      return "RG_88";
-    case HAL_PIXEL_FORMAT_INTERLACE:
-      return "INTERLACE";
-    case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
-      return "YCbCr_420_SP_VENUS";
-    case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS:
-      return "YCrCb_420_SP_VENUS";
-    case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC:
-      return "YCbCr_420_SP_VENUS_UBWC";
-    case HAL_PIXEL_FORMAT_RGBA_1010102:
-      return "RGBA_1010102";
-    case HAL_PIXEL_FORMAT_ARGB_2101010:
-      return "ARGB_2101010";
-    case HAL_PIXEL_FORMAT_RGBX_1010102:
-      return "RGBX_1010102";
-    case HAL_PIXEL_FORMAT_XRGB_2101010:
-      return "XRGB_2101010";
-    case HAL_PIXEL_FORMAT_BGRA_1010102:
-      return "BGRA_1010102";
-    case HAL_PIXEL_FORMAT_ABGR_2101010:
-      return "ABGR_2101010";
-    case HAL_PIXEL_FORMAT_BGRX_1010102:
-      return "BGRX_1010102";
-    case HAL_PIXEL_FORMAT_XBGR_2101010:
-      return "XBGR_2101010";
-    case HAL_PIXEL_FORMAT_YCbCr_420_P010:
-      return "YCbCr_420_P010";
-    case HAL_PIXEL_FORMAT_YCbCr_420_TP10_UBWC:
-      return "YCbCr_420_TP10_UBWC";
-    default:
-      return "Unknown_format";
-  }
-}
-
 const char *HWCDisplay::GetDisplayString() {
   switch (type_) {
     case kPrimary:
diff --git a/sdm/libs/hwc2/hwc_display.h b/sdm/libs/hwc2/hwc_display.h
index 165e2c3..bc3c929 100644
--- a/sdm/libs/hwc2/hwc_display.h
+++ b/sdm/libs/hwc2/hwc_display.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright 2015 The Android Open Source Project
@@ -212,7 +212,6 @@
     return kErrorNotSupported;
   }
   LayerBufferFormat GetSDMFormat(const int32_t &source, const int flags);
-  const char *GetHALPixelFormatString(int format);
   const char *GetDisplayString();
   void MarkLayersForGPUBypass(void);
   void MarkLayersForClientComposition(void);
diff --git a/sdm/libs/hwc2/hwc_layers.cpp b/sdm/libs/hwc2/hwc_layers.cpp
index 2ed21df..c8fd163 100644
--- a/sdm/libs/hwc2/hwc_layers.cpp
+++ b/sdm/libs/hwc2/hwc_layers.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright 2015 The Android Open Source Project
@@ -143,6 +143,7 @@
   layer_buffer->acquire_fence_fd = acquire_fence;
   layer_buffer->size = handle->size;
   layer_buffer->buffer_id = reinterpret_cast<uint64_t>(handle);
+  layer_buffer->fb_id = handle->fb_id;
 
   return HWC2::Error::None;
 }
diff --git a/sdm/libs/utils/formats.cpp b/sdm/libs/utils/formats.cpp
index 8e9d0b8..43abb63 100644
--- a/sdm/libs/utils/formats.cpp
+++ b/sdm/libs/utils/formats.cpp
@@ -98,6 +98,7 @@
   case kFormatYCrCb422H2V1SemiPlanar:   return "Y_CRCB_422_H2V2";
   case kFormatYCbCr420SPVenusUbwc:      return "Y_CBCR_420_VENUS_UBWC";
   case kFormatYCbCr422H2V1Packed:       return "YCBYCR_422_H2V1";
+  case kFormatCbYCrY422H2V1Packed:      return "CBYCRY_422_H2V1";
   case kFormatRGBA1010102:              return "RGBA_1010102";
   case kFormatARGB2101010:              return "ARGB_2101010";
   case kFormatRGBX1010102:              return "RGBX_1010102";
diff --git a/sdm/libs/utils/utils.cpp b/sdm/libs/utils/utils.cpp
index 2ca9039..07211a1 100644
--- a/sdm/libs/utils/utils.cpp
+++ b/sdm/libs/utils/utils.cpp
@@ -27,8 +27,11 @@
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#include <utils/sys.h>
+#include <unistd.h>
 #include <math.h>
+#include <utils/sys.h>
+#include <utils/utils.h>
+
 #include <algorithm>
 
 #define __CLASS__ "Utils"
@@ -60,4 +63,9 @@
   }
 }
 
+DriverType GetDriverType() {
+    const char *fb_caps = "/sys/devices/virtual/graphics/fb0/mdp/caps";
+    // 0 - File exists
+    return Sys::access_(fb_caps, F_OK) ? DriverType::DRM : DriverType::FB;
+}
 }  // namespace sdm