[Mesa-dev] [PATCH mesa 4/4] radv: add VK_EXT_display_control to radv driver [v5]

Bas Nieuwenhuizen bas at basnieuwenhuizen.nl
Sat Jun 23 13:31:37 UTC 2018


Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

Thanks!

On Thu, Jun 21, 2018 at 12:52 AM, Keith Packard <keithp at keithp.com> wrote:
> This extension provides fences and frame count information to direct
> display contexts. It uses new kernel ioctls to provide 64-bits of
> vblank sequence and nanosecond resolution.
>
> v2:
>         Rework fence integration into the driver so that waiting for
>         any of a mixture of fence types (wsi, driver or syncobjs)
>         causes the driver to poll, while a list of just syncobjs or
>         just driver fences will block. When we get syncobjs for wsi
>         fences, we'll adapt to use them.
>
> v3:     Adopt Jason Ekstrand's coding conventions
>
>         Declare variables at first use, eliminate extra whitespace between
>         types and names. Wrap lines to 80 columns.
>
>         Suggested-by: Jason Ekstrand <jason.ekstrand at intel.com>
>
> v4:     Adapt to WSI fence API change. It now returns VkResult and
>         no longer has an option for relative timeouts.
>
> v5:     wsi_register_display_event and wsi_register_device_event now
>         use the default allocator when NULL is provided, so remove the
>         computation of 'alloc' here.
>
> Signed-off-by: Keith Packard <keithp at keithp.com>
> ---
>  src/amd/vulkan/radv_device.c      |  70 ++++++++++++++++-----
>  src/amd/vulkan/radv_extensions.py |   1 +
>  src/amd/vulkan/radv_private.h     |   1 +
>  src/amd/vulkan/radv_wsi_display.c | 101 ++++++++++++++++++++++++++++++
>  4 files changed, 158 insertions(+), 15 deletions(-)
>
> diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
> index ffeb6450b33..b560f1c3085 100644
> --- a/src/amd/vulkan/radv_device.c
> +++ b/src/amd/vulkan/radv_device.c
> @@ -3241,6 +3241,7 @@ VkResult radv_CreateFence(
>         if (!fence)
>                 return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);
>
> +       fence->fence_wsi = NULL;
>         fence->submitted = false;
>         fence->signalled = !!(pCreateInfo->flags & VK_FENCE_CREATE_SIGNALED_BIT);
>         fence->temp_syncobj = 0;
> @@ -3285,6 +3286,8 @@ void radv_DestroyFence(
>                 device->ws->destroy_syncobj(device->ws, fence->syncobj);
>         if (fence->fence)
>                 device->ws->destroy_fence(fence->fence);
> +       if (fence->fence_wsi)
> +               fence->fence_wsi->destroy(fence->fence_wsi);
>         vk_free2(&device->alloc, pAllocator, fence);
>  }
>
> @@ -3310,7 +3313,19 @@ static bool radv_all_fences_plain_and_submitted(uint32_t fenceCount, const VkFen
>  {
>         for (uint32_t i = 0; i < fenceCount; ++i) {
>                 RADV_FROM_HANDLE(radv_fence, fence, pFences[i]);
> -               if (fence->syncobj || fence->temp_syncobj || (!fence->signalled && !fence->submitted))
> +               if (fence->fence == NULL || fence->syncobj ||
> +                   fence->temp_syncobj ||
> +                   (!fence->signalled && !fence->submitted))
> +                       return false;
> +       }
> +       return true;
> +}
> +
> +static bool radv_all_fences_syncobj(uint32_t fenceCount, const VkFence *pFences)
> +{
> +       for (uint32_t i = 0; i < fenceCount; ++i) {
> +               RADV_FROM_HANDLE(radv_fence, fence, pFences[i]);
> +               if (fence->syncobj == 0 && fence->temp_syncobj == 0)
>                         return false;
>         }
>         return true;
> @@ -3326,7 +3341,9 @@ VkResult radv_WaitForFences(
>         RADV_FROM_HANDLE(radv_device, device, _device);
>         timeout = radv_get_absolute_timeout(timeout);
>
> -       if (device->always_use_syncobj) {
> +       if (device->always_use_syncobj &&
> +           radv_all_fences_syncobj(fenceCount, pFences))
> +       {
>                 uint32_t *handles = malloc(sizeof(uint32_t) * fenceCount);
>                 if (!handles)
>                         return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);
> @@ -3396,21 +3413,34 @@ VkResult radv_WaitForFences(
>                 if (fence->signalled)
>                         continue;
>
> -               if (!fence->submitted) {
> -                       while(radv_get_current_time() <= timeout && !fence->submitted)
> -                               /* Do nothing */;
> +               if (fence->fence) {
> +                       if (!fence->submitted) {
> +                               while(radv_get_current_time() <= timeout &&
> +                                     !fence->submitted)
> +                                       /* Do nothing */;
>
> -                       if (!fence->submitted)
> -                               return VK_TIMEOUT;
> +                               if (!fence->submitted)
> +                                       return VK_TIMEOUT;
> +
> +                               /* Recheck as it may have been set by
> +                                * submitting operations. */
>
> -                       /* Recheck as it may have been set by submitting operations. */
> -                       if (fence->signalled)
> -                               continue;
> +                               if (fence->signalled)
> +                                       continue;
> +                       }
> +
> +                       expired = device->ws->fence_wait(device->ws,
> +                                                        fence->fence,
> +                                                        true, timeout);
> +                       if (!expired)
> +                               return VK_TIMEOUT;
>                 }
>
> -               expired = device->ws->fence_wait(device->ws, fence->fence, true, timeout);
> -               if (!expired)
> -                       return VK_TIMEOUT;
> +               if (fence->fence_wsi) {
> +                       VkResult result = fence->fence_wsi->wait(fence->fence_wsi, timeout);
> +                       if (result != VK_SUCCESS)
> +                               return result;
> +               }
>
>                 fence->signalled = true;
>         }
> @@ -3462,9 +3492,19 @@ VkResult radv_GetFenceStatus(VkDevice _device, VkFence _fence)
>                 return VK_SUCCESS;
>         if (!fence->submitted)
>                 return VK_NOT_READY;
> -       if (!device->ws->fence_wait(device->ws, fence->fence, false, 0))
> -               return VK_NOT_READY;
> +       if (fence->fence) {
> +               if (!device->ws->fence_wait(device->ws, fence->fence, false, 0))
> +                       return VK_NOT_READY;
> +       }
> +       if (fence->fence_wsi) {
> +               VkResult result = fence->fence_wsi->wait(fence->fence_wsi, 0);
>
> +               if (result != VK_SUCCESS) {
> +                       if (result == VK_TIMEOUT)
> +                               return VK_NOT_READY;
> +                       return result;
> +               }
> +       }
>         return VK_SUCCESS;
>  }
>
> diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
> index 601a345b114..ebc3f6bc2b5 100644
> --- a/src/amd/vulkan/radv_extensions.py
> +++ b/src/amd/vulkan/radv_extensions.py
> @@ -90,6 +90,7 @@ EXTENSIONS = [
>      Extension('VK_EXT_direct_mode_display',               1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
>      Extension('VK_EXT_acquire_xlib_display',              1, 'VK_USE_PLATFORM_XLIB_XRANDR_EXT'),
>      Extension('VK_EXT_display_surface_counter',           1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
> +    Extension('VK_EXT_display_control',                   1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
>      Extension('VK_EXT_debug_report',                      9, True),
>      Extension('VK_EXT_depth_range_unrestricted',          1, True),
>      Extension('VK_EXT_descriptor_indexing',               2, True),
> diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
> index c77a8b297f8..f001b836c8f 100644
> --- a/src/amd/vulkan/radv_private.h
> +++ b/src/amd/vulkan/radv_private.h
> @@ -1781,6 +1781,7 @@ void radv_initialize_dcc(struct radv_cmd_buffer *cmd_buffer,
>
>  struct radv_fence {
>         struct radeon_winsys_fence *fence;
> +       struct wsi_fence *fence_wsi;
>         bool submitted;
>         bool signalled;
>
> diff --git a/src/amd/vulkan/radv_wsi_display.c b/src/amd/vulkan/radv_wsi_display.c
> index 84431019dbb..3a4774e2f56 100644
> --- a/src/amd/vulkan/radv_wsi_display.c
> +++ b/src/amd/vulkan/radv_wsi_display.c
> @@ -194,3 +194,104 @@ radv_GetRandROutputDisplayEXT(VkPhysicalDevice  physical_device,
>                                             display);
>  }
>  #endif /* VK_USE_PLATFORM_XLIB_XRANDR_EXT */
> +
> +/* VK_EXT_display_control */
> +
> +VkResult
> +radv_DisplayPowerControlEXT(VkDevice                    _device,
> +                           VkDisplayKHR                display,
> +                           const VkDisplayPowerInfoEXT *display_power_info)
> +{
> +       RADV_FROM_HANDLE(radv_device, device, _device);
> +
> +       return wsi_display_power_control(_device,
> +                                        &device->physical_device->wsi_device,
> +                                        display,
> +                                        display_power_info);
> +}
> +
> +VkResult
> +radv_RegisterDeviceEventEXT(VkDevice                    _device,
> +                           const VkDeviceEventInfoEXT  *device_event_info,
> +                           const VkAllocationCallbacks *allocator,
> +                           VkFence                     *_fence)
> +{
> +       RADV_FROM_HANDLE(radv_device, device, _device);
> +       struct radv_fence            *fence;
> +       VkResult                     ret;
> +
> +       fence = vk_alloc2(&device->instance->alloc, allocator, sizeof (*fence),
> +                         8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
> +       if (!fence)
> +               return VK_ERROR_OUT_OF_HOST_MEMORY;
> +
> +       fence->fence = NULL;
> +       fence->submitted = true;
> +       fence->signalled = false;
> +       fence->syncobj = 0;
> +       fence->temp_syncobj = 0;
> +
> +       ret = wsi_register_device_event(_device,
> +                                       &device->physical_device->wsi_device,
> +                                       device_event_info,
> +                                       allocator,
> +                                       &fence->fence_wsi);
> +       if (ret == VK_SUCCESS)
> +               *_fence = radv_fence_to_handle(fence);
> +       else
> +               vk_free2(&device->instance->alloc, allocator, fence);
> +       return ret;
> +}
> +
> +VkResult
> +radv_RegisterDisplayEventEXT(VkDevice                           _device,
> +                            VkDisplayKHR                       display,
> +                            const VkDisplayEventInfoEXT        *display_event_info,
> +                            const VkAllocationCallbacks        *allocator,
> +                            VkFence                            *_fence)
> +{
> +       RADV_FROM_HANDLE(radv_device, device, _device);
> +
> +       struct radv_fence            *fence;
> +       VkResult                     ret;
> +
> +       fence = vk_alloc2(&device->instance->alloc, allocator, sizeof (*fence),
> +                         8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
> +       if (!fence)
> +               return VK_ERROR_OUT_OF_HOST_MEMORY;
> +
> +       fence->fence = NULL;
> +       fence->submitted = true;
> +       fence->signalled = false;
> +       fence->syncobj = 0;
> +       fence->temp_syncobj = 0;
> +
> +       ret = wsi_register_display_event(_device,
> +                                        &device->physical_device->wsi_device,
> +                                        display,
> +                                        display_event_info,
> +                                        allocator,
> +                                        &(fence->fence_wsi));
> +
> +       if (ret == VK_SUCCESS)
> +               *_fence = radv_fence_to_handle(fence);
> +       else
> +               vk_free2(&device->instance->alloc, allocator, fence);
> +       return ret;
> +}
> +
> +VkResult
> +radv_GetSwapchainCounterEXT(VkDevice                    _device,
> +                           VkSwapchainKHR              swapchain,
> +                           VkSurfaceCounterFlagBitsEXT flag_bits,
> +                           uint64_t                    *value)
> +{
> +       RADV_FROM_HANDLE(radv_device, device, _device);
> +
> +       return wsi_get_swapchain_counter(_device,
> +                                        &device->physical_device->wsi_device,
> +                                        swapchain,
> +                                        flag_bits,
> +                                        value);
> +}
> +
> --
> 2.17.1
>
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