Merge "Load Vulkan driver into sphal namespace" into oc-dev am: d5de418cf5 (2052e2fb) · Commits · e / os / android_frameworks_native-old

vulkan/libvulkan/driver.cpp

+38 −10

Original line number	Diff line number	Diff line
		@@ -34,6 +34,11 @@
		#include "driver.h"
		#include "stubhal.h"

		// TODO(b/37049319) Get this from a header once one exists
		extern "C" {
		android_namespace_t* android_get_exported_namespace(const char*);
		}

		// Set to true to enable exposing unratified extensions for development
		static const bool kEnableUnratifiedExtensions = false;

		@@ -150,14 +155,12 @@ const std::array<const char*, 2> HAL_SUBNAME_KEY_PROPERTIES = {{
		"ro.board.platform",
		}};

		int LoadUpdatedDriver(const hw_module_t** module) {
		int LoadDriver(android_namespace_t* library_namespace,
		const hwvulkan_module_t** module) {
		const android_dlextinfo dlextinfo = {
		.flags = ANDROID_DLEXT_USE_NAMESPACE,
		.library_namespace = android::GraphicsEnv::getInstance().getDriverNamespace(),
		.library_namespace = library_namespace,
		};
		if (!dlextinfo.library_namespace)
		return -ENOENT;

		void* so = nullptr;
		char prop[PROPERTY_VALUE_MAX];
		for (auto key : HAL_SUBNAME_KEY_PROPERTIES) {
		@@ -171,7 +174,7 @@ int LoadUpdatedDriver(const hw_module_t** module) {
		if (!so)
		return -ENOENT;

		hw_module_t* hmi = static_cast<hw_module_t*>(dlsym(so, HAL_MODULE_INFO_SYM_AS_STR));
		auto hmi = static_cast<hw_module_t*>(dlsym(so, HAL_MODULE_INFO_SYM_AS_STR));
		if (!hmi) {
		ALOGE("couldn't find symbol '%s' in HAL library: %s", HAL_MODULE_INFO_SYM_AS_STR, dlerror());
		dlclose(so);
		@@ -183,11 +186,24 @@ int LoadUpdatedDriver(const hw_module_t** module) {
		return -EINVAL;
		}
		hmi->dso = so;
		*module = hmi;
		ALOGD("loaded updated driver");
		module = reinterpret_cast<const hwvulkan_module_t>(hmi);
		return 0;
		}

		int LoadBuiltinDriver(const hwvulkan_module_t** module) {
		auto ns = android_get_exported_namespace("sphal");
		if (!ns)
		return -ENOENT;
		return LoadDriver(ns, module);
		}

		int LoadUpdatedDriver(const hwvulkan_module_t** module) {
		auto ns = android::GraphicsEnv::getInstance().getDriverNamespace();
		if (!ns)
		return -ENOENT;
		return LoadDriver(ns, module);
		}

		bool Hal::Open() {
		ALOG_ASSERT(!hal_.dev_, "OpenHAL called more than once");

		@@ -197,9 +213,21 @@ bool Hal::Open() {
		int result;
		const hwvulkan_module_t* module = nullptr;

		result = LoadUpdatedDriver(reinterpret_cast<const hw_module_t**>(&module));
		result = LoadUpdatedDriver(&module);
		if (result == -ENOENT) {
		result = hw_get_module(HWVULKAN_HARDWARE_MODULE_ID, reinterpret_cast<const hw_module_t**>(&module));
		result = LoadBuiltinDriver(&module);
		if (result != 0) {
		// -ENOENT means the sphal namespace doesn't exist, not that there
		// is a problem with the driver.
		ALOGW_IF(
		result != -ENOENT,
		"Failed to load Vulkan driver into sphal namespace. This "
		"usually means the driver has forbidden library dependencies."
		"Please fix, this will soon stop working.");
		result =
		hw_get_module(HWVULKAN_HARDWARE_MODULE_ID,
		reinterpret_cast<const hw_module_t**>(&module));
		}
		}
		if (result != 0) {
		ALOGV("unable to load Vulkan HAL, using stub HAL (result=%d)", result);