| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. 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. |
| // |
| // 3. Neither the name of the copyright holder 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 <zircon/syscalls.h> |
| #include <utility> |
| |
| #include "dawn/native/SystemHandle.h" |
| #include "dawn/native/vulkan/BackendVk.h" |
| #include "dawn/native/vulkan/DeviceVk.h" |
| #include "dawn/native/vulkan/PhysicalDeviceVk.h" |
| #include "dawn/native/vulkan/VulkanError.h" |
| #include "dawn/native/vulkan/external_semaphore/SemaphoreServiceImplementation.h" |
| #include "dawn/native/vulkan/external_semaphore/SemaphoreServiceImplementationZirconHandle.h" |
| |
| namespace dawn::native::vulkan::external_semaphore { |
| |
| class ServiceImplementationZirconHandle : public ServiceImplementation { |
| public: |
| explicit ServiceImplementationZirconHandle(Device* device) |
| : ServiceImplementation(device), |
| mSupported(CheckSupport(device->GetDeviceInfo(), |
| ToBackend(device->GetPhysicalDevice())->GetVkPhysicalDevice(), |
| device->fn)) {} |
| |
| ~ServiceImplementationZirconHandle() override = default; |
| |
| static bool CheckSupport(const VulkanDeviceInfo& deviceInfo, |
| VkPhysicalDevice vkPhysicalDevice, |
| const VulkanFunctions& fn) { |
| if (!deviceInfo.HasExt(DeviceExt::ExternalSemaphoreZirconHandle)) { |
| return false; |
| } |
| |
| VkPhysicalDeviceExternalSemaphoreInfoKHR semaphoreInfo; |
| semaphoreInfo.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO_KHR; |
| semaphoreInfo.pNext = nullptr; |
| semaphoreInfo.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA; |
| |
| VkExternalSemaphorePropertiesKHR semaphoreProperties; |
| semaphoreProperties.sType = VK_STRUCTURE_TYPE_EXTERNAL_SEMAPHORE_PROPERTIES_KHR; |
| semaphoreProperties.pNext = nullptr; |
| |
| fn.GetPhysicalDeviceExternalSemaphoreProperties(vkPhysicalDevice, &semaphoreInfo, |
| &semaphoreProperties); |
| |
| VkFlags requiredFlags = VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT_KHR | |
| VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT_KHR; |
| |
| return IsSubset(requiredFlags, semaphoreProperties.externalSemaphoreFeatures); |
| } |
| |
| // True if the device reports it supports this feature |
| bool Supported() override { return mSupported; } |
| |
| // Given an external handle, import it into a VkSemaphore |
| ResultOrError<VkSemaphore> ImportSemaphore(ExternalSemaphoreHandle handle) override { |
| DAWN_INVALID_IF(handle == ZX_HANDLE_INVALID, |
| "Importing a semaphore with an invalid handle."); |
| |
| VkSemaphore semaphore = VK_NULL_HANDLE; |
| VkSemaphoreCreateInfo info; |
| info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; |
| info.pNext = nullptr; |
| info.flags = 0; |
| |
| DAWN_TRY(CheckVkSuccess( |
| mDevice->fn.CreateSemaphore(mDevice->GetVkDevice(), &info, nullptr, &*semaphore), |
| "vkCreateSemaphore")); |
| |
| VkImportSemaphoreZirconHandleInfoFUCHSIA importSemaphoreHandleInfo; |
| importSemaphoreHandleInfo.sType = |
| VK_STRUCTURE_TYPE_IMPORT_SEMAPHORE_ZIRCON_HANDLE_INFO_FUCHSIA; |
| importSemaphoreHandleInfo.pNext = nullptr; |
| importSemaphoreHandleInfo.semaphore = semaphore; |
| // A temporary import means that after we wait on this semaphore, the semaphore payload |
| // will be restored to its prior permanent state - which is signaled. |
| // Note that this is different from how Vulkan binary semaphores usually work - where |
| // waiting on them resets them to unsignaled. |
| // For Zircon events we use temporary because it enables concurrent waiting. |
| // Multiple waiters can wait on the same semaphore and all be unblocked because after |
| // one waiter is woken, the state resets back to signaled for the next waiter to be woken. |
| importSemaphoreHandleInfo.flags = VK_SEMAPHORE_IMPORT_TEMPORARY_BIT; |
| importSemaphoreHandleInfo.handleType = |
| VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA; |
| SystemHandle handleCopy; |
| DAWN_TRY_ASSIGN(handleCopy, SystemHandle::Duplicate(handle)); |
| importSemaphoreHandleInfo.zirconHandle = handleCopy.Get(); |
| |
| MaybeError status = CheckVkSuccess(mDevice->fn.ImportSemaphoreZirconHandleFUCHSIA( |
| mDevice->GetVkDevice(), &importSemaphoreHandleInfo), |
| "vkImportSemaphoreZirconHandleFUCHSIA"); |
| |
| if (status.IsError()) { |
| mDevice->fn.DestroySemaphore(mDevice->GetVkDevice(), semaphore, nullptr); |
| DAWN_TRY(std::move(status)); |
| } |
| |
| handleCopy.Detach(); // Ownership transfered to the semaphore. |
| return semaphore; |
| } |
| |
| // Create a VkSemaphore that is exportable into an external handle later |
| ResultOrError<VkSemaphore> CreateExportableSemaphore() override { |
| VkExportSemaphoreCreateInfoKHR exportSemaphoreInfo; |
| exportSemaphoreInfo.sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO_KHR; |
| exportSemaphoreInfo.pNext = nullptr; |
| exportSemaphoreInfo.handleTypes = |
| VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA; |
| |
| VkSemaphoreCreateInfo semaphoreCreateInfo; |
| semaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; |
| semaphoreCreateInfo.pNext = &exportSemaphoreInfo; |
| semaphoreCreateInfo.flags = 0; |
| |
| VkSemaphore signalSemaphore; |
| DAWN_TRY( |
| CheckVkSuccess(mDevice->fn.CreateSemaphore(mDevice->GetVkDevice(), &semaphoreCreateInfo, |
| nullptr, &*signalSemaphore), |
| "vkCreateSemaphore")); |
| return signalSemaphore; |
| } |
| |
| // Export a VkSemaphore into an external handle |
| ResultOrError<ExternalSemaphoreHandle> ExportSemaphore(VkSemaphore semaphore) override { |
| VkSemaphoreGetZirconHandleInfoFUCHSIA semaphoreGetHandleInfo; |
| semaphoreGetHandleInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_ZIRCON_HANDLE_INFO_FUCHSIA; |
| semaphoreGetHandleInfo.pNext = nullptr; |
| semaphoreGetHandleInfo.semaphore = semaphore; |
| semaphoreGetHandleInfo.handleType = |
| VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA; |
| |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| DAWN_TRY(CheckVkSuccess(mDevice->fn.GetSemaphoreZirconHandleFUCHSIA( |
| mDevice->GetVkDevice(), &semaphoreGetHandleInfo, &handle), |
| "VkSemaphoreGetZirconHandleInfoFUCHSIA")); |
| |
| DAWN_ASSERT(handle != ZX_HANDLE_INVALID); |
| return handle; |
| } |
| |
| // Duplicate a new external handle from the given one. |
| ExternalSemaphoreHandle DuplicateHandle(ExternalSemaphoreHandle handle) override { |
| zx_handle_t out_handle = ZX_HANDLE_INVALID; |
| zx_status_t status = zx_handle_duplicate(handle, ZX_RIGHT_SAME_RIGHTS, &out_handle); |
| DAWN_ASSERT(status == ZX_OK); |
| return out_handle; |
| } |
| |
| void CloseHandle(ExternalSemaphoreHandle handle) override { |
| zx_status_t status = zx_handle_close(handle); |
| DAWN_ASSERT(status == ZX_OK); |
| } |
| |
| private: |
| bool mSupported = false; |
| }; |
| |
| std::unique_ptr<ServiceImplementation> CreateZirconHandleService(Device* device) { |
| return std::make_unique<ServiceImplementationZirconHandle>(device); |
| } |
| bool CheckZirconHandleSupport(const VulkanDeviceInfo& deviceInfo, |
| VkPhysicalDevice vkPhysicalDevice, |
| const VulkanFunctions& fn) { |
| return ServiceImplementationZirconHandle::CheckSupport(deviceInfo, vkPhysicalDevice, fn); |
| } |
| |
| } // namespace dawn::native::vulkan::external_semaphore |