diff --git a/libs/hwui/renderthread/VulkanManager.cpp b/libs/hwui/renderthread/VulkanManager.cpp
index e93824d..0112686 100644
--- a/libs/hwui/renderthread/VulkanManager.cpp
+++ b/libs/hwui/renderthread/VulkanManager.cpp
@@ -336,6 +336,7 @@
     GET_DEV_PROC(ResetCommandBuffer);
     GET_DEV_PROC(ResetFences);
     GET_DEV_PROC(WaitForFences);
+    GET_DEV_PROC(FrameBoundaryANDROID);
 }
 
 void VulkanManager::initialize() {
@@ -516,6 +517,25 @@
     if (semaphore != VK_NULL_HANDLE) {
         if (submitted == GrSemaphoresSubmitted::kYes) {
             mSwapSemaphore = semaphore;
+            if (mFrameBoundaryANDROID) {
+                // retrieve VkImage used as render target
+                VkImage image = VK_NULL_HANDLE;
+                GrBackendRenderTarget backendRenderTarget =
+                        surface->getBackendRenderTarget(SkSurface::kFlushRead_BackendHandleAccess);
+                if (backendRenderTarget.isValid()) {
+                    GrVkImageInfo info;
+                    if (backendRenderTarget.getVkImageInfo(&info)) {
+                        image = info.fImage;
+                    } else {
+                        ALOGE("Frame boundary: backend is not vulkan");
+                    }
+                } else {
+                    ALOGE("Frame boundary: invalid backend render target");
+                }
+                // frameBoundaryANDROID needs to know about mSwapSemaphore, but
+                // it won't wait on it.
+                mFrameBoundaryANDROID(mDevice, mSwapSemaphore, image);
+            }
         } else {
             destroy_semaphore(mDestroySemaphoreContext);
             mDestroySemaphoreContext = nullptr;
diff --git a/libs/hwui/renderthread/VulkanManager.h b/libs/hwui/renderthread/VulkanManager.h
index 0912369..7b5fe19 100644
--- a/libs/hwui/renderthread/VulkanManager.h
+++ b/libs/hwui/renderthread/VulkanManager.h
@@ -31,6 +31,21 @@
 #include <vk/GrVkExtensions.h>
 #include <vulkan/vulkan.h>
 
+// VK_ANDROID_frame_boundary is a bespoke extension defined by AGI
+// (https://github.com/google/agi) to enable profiling of apps rendering via
+// HWUI. This extension is not defined in Khronos, hence the need to declare it
+// manually here. There's a superseding extension (VK_EXT_frame_boundary) being
+// discussed in Khronos, but in the meantime we use the bespoke
+// VK_ANDROID_frame_boundary. This is a device extension that is implemented by
+// AGI's Vulkan capture layer, such that it is only supported by devices when
+// AGI is doing a capture of the app.
+//
+// TODO(b/182165045): use the Khronos blessed VK_EXT_frame_boudary once it has
+// landed in the spec.
+typedef void(VKAPI_PTR* PFN_vkFrameBoundaryANDROID)(VkDevice device, VkSemaphore semaphore,
+                                                    VkImage image);
+#define VK_ANDROID_FRAME_BOUNDARY_EXTENSION_NAME "VK_ANDROID_frame_boundary"
+
 #include "Frame.h"
 #include "IRenderPipeline.h"
 #include "VulkanSurface.h"
@@ -160,6 +175,7 @@
     VkPtr<PFN_vkDestroyFence> mDestroyFence;
     VkPtr<PFN_vkWaitForFences> mWaitForFences;
     VkPtr<PFN_vkResetFences> mResetFences;
+    VkPtr<PFN_vkFrameBoundaryANDROID> mFrameBoundaryANDROID;
 
     VkInstance mInstance = VK_NULL_HANDLE;
     VkPhysicalDevice mPhysicalDevice = VK_NULL_HANDLE;