Merge 'Fix issues with shared present modes' into 'main'

See merge request mesa/vulkan-wsi-layer!220

wsi/extensions/present_timing.cpp

@@ -80,12 +80,19 @@ wsi_ext_present_timing::~wsi_ext_present_timing()
    }
 }
 
-VkResult wsi_ext_present_timing::init_timing_resources()
+VkResult wsi_ext_present_timing::init(util::unique_ptr<wsi::vulkan_time_domain> *domains, size_t domain_count)
 {
-   if (!m_scheduled_present_targets.try_resize(m_num_images))
+   for (size_t i = 0; i < domain_count; i++)
    {
+      if (!get_swapchain_time_domains().add_time_domain(std::move(domains[i])))
+      {
+         WSI_LOG_ERROR("Failed to add a time domain.");
          return VK_ERROR_OUT_OF_HOST_MEMORY;
       }
+   }
+
+   if (is_present_stage_supported(VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT))
+   {
       if (!m_present_semaphore.try_resize(m_num_images))
       {
          return VK_ERROR_OUT_OF_HOST_MEMORY;
@@ -102,6 +109,13 @@ VkResult wsi_ext_present_timing::init_timing_resources()
          }
       }
       TRY_LOG_CALL(m_queue_family_resources.init(m_device.get_best_queue_family_index(), m_num_images));
+   }
+
+   if (!m_scheduled_present_targets.try_resize(m_num_images))
+   {
+      return VK_ERROR_OUT_OF_HOST_MEMORY;
+   }
+
    return VK_SUCCESS;
 }
 
@@ -136,6 +150,11 @@ swapchain_presentation_entry *wsi_ext_present_timing::get_pending_stage_entry(ui
    return nullptr;
 }
 
+bool wsi_ext_present_timing::is_present_stage_supported(VkPresentStageFlagBitsEXT present_stage)
+{
+   return stages_supported() & present_stage;
+}
+
 VkResult wsi_ext_present_timing::write_pending_results()
 {
    for (auto &slot : m_queue)
@@ -263,7 +282,8 @@ VkResult wsi_ext_present_timing::add_presentation_query_entry(VkQueue queue, uin
    {
       return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
-   if (present_stage_queries & VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT)
+   if ((present_stage_queries & VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT) &&
+       is_present_stage_supported(VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT))
    {
       TRY_LOG_CALL(queue_submit_queue_end_timing(m_device, queue, image_index));
    }
@@ -322,6 +342,7 @@ swapchain_time_domains &wsi_ext_present_timing::get_swapchain_time_domains()
 
 VkSemaphore wsi_ext_present_timing::get_image_present_semaphore(uint32_t image_index)
 {
+   assert(is_present_stage_supported(VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT));
    return m_present_semaphore[image_index];
 }
 

wsi/extensions/present_timing.hpp

@@ -446,15 +446,7 @@ public:
                                      VkDevice device, uint32_t num_images, arg_types &&...args)
    {
       auto present_timing = allocator.make_unique<T>(allocator, device, num_images, std::forward<arg_types>(args)...);
-      for (size_t i = 0; i < domain_count; i++)
+      if (present_timing->wsi_ext_present_timing::init(domains, domain_count) != VK_SUCCESS)
-      {
-         if (!present_timing->get_swapchain_time_domains().add_time_domain(std::move(domains[i])))
-         {
-            WSI_LOG_ERROR("Failed to add a time domain.");
-            return nullptr;
-         }
-      }
-      if (present_timing->init_timing_resources() != VK_SUCCESS)
       {
          WSI_LOG_ERROR("Failed to initialize present timing.");
          return nullptr;
@@ -645,6 +637,14 @@ public:
     */
    virtual VkPresentStageFlagsEXT stages_supported() = 0;
 
+   /**
+    * @brief Check if a present stage is supported.
+    *
+    * @param present_stage Present stage to check.
+    * @return true if stage is supported, false otherwise.
+    */
+   bool is_present_stage_supported(VkPresentStageFlagBitsEXT present_stage);
+
 protected:
    /**
     * @brief User provided memory allocation callbacks.
@@ -721,11 +721,13 @@ private:
                                           uint32_t image_index);
 
    /**
-    * @brief Initialize resources for timing queries.
+    * @brief Initialize the present timing extension.
     *
-    * @return VK_SUCCESS if the initialization is successful and error if otherwise.
+    * @param domains Array of time domains.
+    * @param domain_count Size of the @p domains array.
+    * @return VK_SUCCESS when the initialization is successful and error otherwise.
     */
-   VkResult init_timing_resources();
+   VkResult init(util::unique_ptr<wsi::vulkan_time_domain> *domains, size_t domain_count);
 
    /**
     * @brief Get all the pending results that are available to the queue.

wsi/headless/present_timing_handler.cpp

@@ -36,14 +36,17 @@
 
 wsi_ext_present_timing_headless::wsi_ext_present_timing_headless(const util::allocator &allocator, VkDevice device,
                                                                  uint32_t num_images,
-                                                                 std::optional<VkTimeDomainEXT> monotonic_domain)
+                                                                 std::optional<VkTimeDomainEXT> monotonic_domain,
+                                                                 bool is_swapchain_using_shared_present_mode)
    : wsi::wsi_ext_present_timing(allocator, device, num_images)
    , m_monotonic_domain(monotonic_domain)
+   , m_is_swapchain_using_shared_present_mode(is_swapchain_using_shared_present_mode)
 {
 }
 
 util::unique_ptr<wsi_ext_present_timing_headless> wsi_ext_present_timing_headless::create(
-   const util::allocator &allocator, const VkDevice &device, uint32_t num_images)
+   const util::allocator &allocator, const VkDevice &device, uint32_t num_images,
+   bool is_swapchain_using_shared_present_mode)
 {
    auto &dev_data = layer::device_private_data::get(device);
 
@@ -73,6 +76,8 @@ util::unique_ptr<wsi_ext_present_timing_headless> wsi_ext_present_timing_headles
    }
 
    util::vector<util::unique_ptr<wsi::vulkan_time_domain>> domains(allocator);
+   if (!is_swapchain_using_shared_present_mode)
+   {
       if (!domains.try_push_back(allocator.make_unique<wsi::vulkan_time_domain>(
              VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT, VK_TIME_DOMAIN_DEVICE_KHR)))
       {
@@ -97,9 +102,11 @@ util::unique_ptr<wsi_ext_present_timing_headless> wsi_ext_present_timing_headles
             return nullptr;
          }
       }
+   }
 
    return wsi_ext_present_timing::create<wsi_ext_present_timing_headless>(allocator, domains.data(), domains.size(),
-                                                                          device, num_images, monotonic_domain);
+                                                                          device, num_images, monotonic_domain,
+                                                                          is_swapchain_using_shared_present_mode);
 }
 
 VkResult wsi_ext_present_timing_headless::get_swapchain_timing_properties(
@@ -166,9 +173,14 @@ void wsi_ext_present_timing_headless::set_first_pixel_visible_timestamp_for_last
 
 VkPresentStageFlagsEXT wsi_ext_present_timing_headless::stages_supported()
 {
-   VkPresentStageFlagsEXT stages =
+   VkPresentStageFlagsEXT stages = {};
-      VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT | VK_PRESENT_STAGE_REQUEST_DEQUEUED_BIT_EXT |
+
+   /* Do not expose any stage when using shared present modes. */
+   if (!m_is_swapchain_using_shared_present_mode)
+   {
+      stages |= VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT | VK_PRESENT_STAGE_REQUEST_DEQUEUED_BIT_EXT |
                 VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_OUT_BIT_EXT | VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_VISIBLE_BIT_EXT;
+   }
    return stages;
 }
 

wsi/headless/present_timing_handler.hpp

@@ -43,7 +43,8 @@ class wsi_ext_present_timing_headless : public wsi::wsi_ext_present_timing
 {
 public:
    static util::unique_ptr<wsi_ext_present_timing_headless> create(const util::allocator &allocator,
-                                                                   const VkDevice &device, uint32_t num_images);
+                                                                   const VkDevice &device, uint32_t num_images,
+                                                                   bool is_swapchain_using_shared_present_mode);
 
    VkResult get_swapchain_timing_properties(uint64_t &timing_properties_counter,
                                             VkSwapchainTimingPropertiesEXT &timing_properties) override;
@@ -89,7 +90,8 @@ public:
 
 private:
    wsi_ext_present_timing_headless(const util::allocator &allocator, VkDevice device, uint32_t num_images,
-                                   std::optional<VkTimeDomainEXT> monotonic_domain);
+                                   std::optional<VkTimeDomainEXT> monotonic_domain,
+                                   bool is_swapchain_using_shared_present_mode);
 
    /* Allow util::allocator to access the private constructor */
    friend util::allocator;
@@ -101,6 +103,11 @@ private:
     * Timestamp for the last VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_VISIBLE_BIT_EXT stage.
     */
    std::optional<uint64_t> m_first_pixel_visible_timestamp_for_last_image;
+
+   /**
+    * @brief Indicates whether the swapchain is using shared present mode.
+    */
+   bool m_is_swapchain_using_shared_present_mode;
 };
 
 #endif

wsi/headless/swapchain.cpp

@@ -103,8 +103,8 @@ VkResult swapchain::add_required_extensions(VkDevice device, const VkSwapchainCr
    bool swapchain_support_enabled = swapchain_create_info->flags & VK_SWAPCHAIN_CREATE_PRESENT_TIMING_BIT_EXT;
    if (swapchain_support_enabled)
    {
-      if (!add_swapchain_extension(
+      if (!add_swapchain_extension(wsi_ext_present_timing_headless::create(
-             wsi_ext_present_timing_headless::create(m_allocator, device, swapchain_create_info->minImageCount)))
+             m_allocator, device, swapchain_create_info->minImageCount, is_using_shared_present_mode())))
       {
          return VK_ERROR_OUT_OF_HOST_MEMORY;
       }
@@ -132,15 +132,8 @@ VkResult swapchain::init_platform(VkDevice device, const VkSwapchainCreateInfoKH
                                   bool &use_presentation_thread)
 {
    UNUSED(device);
-   if (swapchain_create_info->presentMode == VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR)
-   {
-      use_presentation_thread = false;
-   }
-   else
-   {
-      use_presentation_thread = true;
-   }
 
+   use_presentation_thread = !is_using_shared_present_mode();
    return init_image_factory(*swapchain_create_info);
 }
 
@@ -161,7 +154,11 @@ VkResult swapchain::init_image_factory(const VkSwapchainCreateInfoKHR &swapchain
       return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
 
-   m_image_factory.init(std::move(image_handle_creator), std::move(backing_memory_creator), false, true);
+   /* On shared present modes we don't want to wait on present fence as the image is re-used and never released. */
+   bool wait_on_present_fence = !is_using_shared_present_mode();
+
+   m_image_factory.init(std::move(image_handle_creator), std::move(backing_memory_creator), false,
+                        wait_on_present_fence);
    return VK_SUCCESS;
 }
 

wsi/swapchain_base.cpp

@@ -54,6 +54,12 @@
 namespace wsi
 {
 
+bool swapchain_base::is_using_shared_present_mode()
+{
+   return (m_present_mode == VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR ||
+           m_present_mode == VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR);
+}
+
 void swapchain_base::page_flip_thread()
 {
    auto &sc_images = m_swapchain_images;
@@ -69,27 +75,6 @@ void swapchain_base::page_flip_thread()
    while (m_page_flip_thread_run)
    {
       pending_present_request submit_info{};
-      if (m_present_mode == VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR)
-      {
-         /* In continuous mode the application will only make one presentation request,
-          * therefore the page flip semaphore will only be signalled once. */
-         if (m_first_present)
-         {
-            VkResult wait_res = m_page_flip_semaphore.wait(SEMAPHORE_TIMEOUT);
-            if (wait_res == VK_TIMEOUT)
-            {
-               /* Image is not ready yet. */
-               continue;
-            }
-            assert(wait_res == VK_SUCCESS);
-         }
-
-         /* For continuous mode there will be only one image in the swapchain.
-          * This image will always be used, and there is no pending state in this case. */
-         submit_info.image_index = 0;
-      }
-      else
-      {
       /* Waiting for the page_flip_semaphore which will be signalled once there is an
        * image to display.*/
       {
@@ -103,6 +88,7 @@ void swapchain_base::page_flip_thread()
 
       /* We want to present the oldest queued for present image from our present queue,
        * which we can find at the sc->pending_buffer_pool.head index. */
+      {
          util::unique_lock<util::recursive_mutex> image_status_lock(m_image_status_mutex);
          if (!image_status_lock)
          {
@@ -199,20 +185,12 @@ void swapchain_base::unpresent_image(uint32_t presented_index)
       abort();
    }
 
-   if (m_present_mode == VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR ||
+   const bool is_shared_present = is_using_shared_present_mode();
-       m_present_mode == VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR)
+   m_swapchain_images[presented_index].set_status(is_shared_present ? swapchain_image::ACQUIRED :
-   {
+                                                                      swapchain_image::FREE);
-      m_swapchain_images[presented_index].set_status(swapchain_image::ACQUIRED);
-   }
-   else
-   {
-      m_swapchain_images[presented_index].set_status(swapchain_image::FREE);
-   }
 
    image_status_lock.unlock();
-
+   if (!is_shared_present)
-   if (m_present_mode != VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR &&
-       m_present_mode != VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR)
    {
       m_free_image_semaphore.post();
    }
@@ -635,13 +613,6 @@ VkResult swapchain_base::queue_present(VkQueue queue, const VkPresentInfoKHR *pr
       sem_count = present_info->waitSemaphoreCount;
    }
 
-   if (!m_page_flip_thread_run)
-   {
-      /* If the page flip thread is not running, we need to wait for any present payload here, before setting a new present payload. */
-      constexpr uint64_t WAIT_PRESENT_TIMEOUT = 1000000000; /* 1 second */
-      TRY_LOG_CALL(m_swapchain_images[submit_info.pending_present.image_index].wait_present(WAIT_PRESENT_TIMEOUT));
-   }
-
    void *submission_pnext = nullptr;
    uint32_t count_signal_semaphores = 0;
    std::optional<VkFrameBoundaryEXT> frame_boundary;
@@ -668,9 +639,12 @@ VkResult swapchain_base::queue_present(VkQueue queue, const VkPresentInfoKHR *pr
        (present_timing_info->presentStageQueries & VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT))
    {
       auto *ext_present_timing = get_swapchain_extension<wsi::wsi_ext_present_timing>(true);
+      if (ext_present_timing->is_present_stage_supported(VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT))
+      {
          signal_semaphores[count_signal_semaphores++] =
             ext_present_timing->get_image_present_semaphore(submit_info.pending_present.image_index);
       }
+   }
 #endif
    queue_submit_semaphores semaphores = {
       wait_semaphores,

wsi/swapchain_base.hpp

@@ -592,6 +592,13 @@ protected:
       }
    }
 
+   /**
+    * @brief Check if the swapchain is using a shared present mode.
+    *
+    * @return true if using a shared present mode, false otherwise.
+    */
+   bool is_using_shared_present_mode();
+
 private:
    util::mutex m_image_acquire_lock;
    /**

wsi/swapchain_image.cpp

@@ -54,7 +54,7 @@ std::variant<VkResult, swapchain_image> swapchain_image::create(create_args &cre
       return result;
    }
 
-   util::unique_ptr<fence_sync> present_fence;
+   util::unique_ptr<fence_sync> present_fence{ nullptr };
    if (create_args.m_exportable_fence)
    {
       auto present_fence_opt = sync_fd_fence_sync::create(*device_data);
@@ -69,6 +69,9 @@ std::variant<VkResult, swapchain_image> swapchain_image::create(create_args &cre
       present_fence = create_args.m_allocator.make_unique<sync_fd_fence_sync>(std::move(present_fence_opt.value()));
    }
    else
+   {
+      /* If we are not exporting fence and are not waiting on it then skip creating one. */
+      if (create_args.m_wait_on_present_fence)
       {
          auto present_fence_opt = fence_sync::create(*device_data);
          if (!present_fence_opt.has_value())
@@ -81,12 +84,6 @@ std::variant<VkResult, swapchain_image> swapchain_image::create(create_args &cre
          }
          present_fence = create_args.m_allocator.make_unique<fence_sync>(std::move(present_fence_opt.value()));
       }
-
-   if (present_fence == nullptr)
-   {
-      device_data->disp.DestroySemaphore(device, present_semaphore, create_args.m_allocator.get_original_callbacks());
-      device_data->disp.DestroySemaphore(device, present_fence_wait, create_args.m_allocator.get_original_callbacks());
-      return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
 
    return swapchain_image(create_args.m_image_handle, present_semaphore, present_fence_wait, std::move(present_fence),
@@ -144,12 +141,16 @@ VkResult swapchain_image::bind(const VkBindImageMemoryInfo *bind_image_mem_info)
 VkResult swapchain_image::set_present_payload(VkQueue queue, const queue_submit_semaphores &semaphores,
                                               const void *submission_pnext)
 {
+   if (!m_present_fence)
+   {
+      return sync_queue_submit(*m_device_data, queue, VK_NULL_HANDLE, semaphores, submission_pnext);
+   }
    return m_present_fence->set_payload(queue, semaphores, submission_pnext);
 }
 
 VkResult swapchain_image::wait_present(uint64_t timeout_ns)
 {
-   if (m_wait_on_present_fence)
+   if (m_wait_on_present_fence && m_present_fence)
    {
       return m_present_fence->wait_payload(timeout_ns);
    }