[Mesa-dev] [PATCH 5/7] anv: Implement VK_KHX_external_memory_capabilities (v2)

Jason Ekstrand jason at jlekstrand.net
Tue Feb 28 22:38:43 UTC 2017


On Tue, Feb 28, 2017 at 10:58 AM, Chad Versace <chadversary at chromium.org>
wrote:

> This is a complete but trivial implementation. It's trivial becasue We
> support no external memory capabilities yet.  Most of the real work in
> this commit is in reworking the UUIDs advertised by the driver.
>
> v2 (chadv):
>   - Fix chain traversal in vkGetPhysicalDeviceImageFormatProperties2KHR.
>     Extract VkPhysicalDeviceExternalImageFormatInfoKHX from the chain of
>     input structs, not the chain of output structs.
>   - In vkGetPhysicalDeviceImageFormatProperties2KHR, iterate over the
>     input chain and the output chain separately. Reduces diff in future
>     dma_buf patches.
>
> Co-authored-with: Jason Ekstrand <jason.ekstrand at intel.com>
> ---
>
> On my branch wip/anv-external-memory.
>   http://git.kiwitree.net/cgit/~chadv/mesa/log/?h=wip/anv-external-memory
>
>  src/intel/vulkan/anv_device.c           | 53 ++++++++++++++++++++---
>  src/intel/vulkan/anv_entrypoints_gen.py |  1 +
>  src/intel/vulkan/anv_formats.c          | 75
> +++++++++++++++++++++++++++++----
>  src/intel/vulkan/anv_private.h          |  2 +
>  4 files changed, 117 insertions(+), 14 deletions(-)
>
> diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
> index 3609670b348..9ee2e02ed51 100644
> --- a/src/intel/vulkan/anv_device.c
> +++ b/src/intel/vulkan/anv_device.c
> @@ -74,11 +74,37 @@ anv_physical_device_init_uuids(struct
> anv_physical_device *device)
>     if (sha1_ctx == NULL)
>        return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
>
> +   /* The pipeline cache UUID is used for determining when a pipeline
> cache is
> +    * invalid.  It needs both a driver build and the PCI ID of the device.
> +    */
>     _mesa_sha1_update(sha1_ctx, build_id_data(note), build_id_len);
>     _mesa_sha1_update(sha1_ctx, &device->chipset_id,
> sizeof(device->chipset_id));
>     _mesa_sha1_final(sha1_ctx, sha1);
>     memcpy(device->pipeline_cache_uuid, sha1, VK_UUID_SIZE);
>
> +   /* The driver UUID is used for determining sharability of images and
> memory
> +    * between two Vulkan instances in separate processes.  People who
> want to
> +    * share memory need to also check the device UUID (below) so all this
> +    * needs to be is the build-id.
> +    */
> +   memcpy(device->driver_uuid, build_id_data(note), VK_UUID_SIZE);
> +
> +   sha1_ctx = _mesa_sha1_init();
> +   if (sha1_ctx == NULL)
> +      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> +
> +   /* The device UUID uniquely identifies the given device within the
> machine.
> +    * Since we never have more than one device, this doesn't need to be a
> real
> +    * UUID.  However, on the off-chance that someone tries to use this to
> +    * cache pre-tiled images or something of the like, we use the PCI ID
> and
> +    * some bits if ISL info to ensure that this is safe.
> +    */
> +   _mesa_sha1_update(sha1_ctx, &device->chipset_id,
> sizeof(device->chipset_id));
> +   _mesa_sha1_update(sha1_ctx, &device->isl_dev.has_bit6_swizzling,
> +                     sizeof(device->isl_dev.has_bit6_swizzling));
> +   _mesa_sha1_final(sha1_ctx, sha1);
> +   memcpy(device->device_uuid, sha1, VK_UUID_SIZE);
> +
>     return VK_SUCCESS;
>  }
>
> @@ -163,10 +189,6 @@ anv_physical_device_init(struct anv_physical_device
> *device,
>        goto fail;
>     }
>
> -   result = anv_physical_device_init_uuids(device);
> -   if (result != VK_SUCCESS)
> -      goto fail;
> -
>     bool swizzled = anv_gem_get_bit6_swizzle(fd, I915_TILING_X);
>
>     /* GENs prior to 8 do not support EU/Subslice info */
> @@ -206,14 +228,18 @@ anv_physical_device_init(struct anv_physical_device
> *device,
>     device->compiler->shader_debug_log = compiler_debug_log;
>     device->compiler->shader_perf_log = compiler_perf_log;
>
> +   isl_device_init(&device->isl_dev, &device->info, swizzled);
> +
> +   result = anv_physical_device_init_uuids(device);
> +   if (result != VK_SUCCESS)
> +      goto fail;
> +
>     result = anv_init_wsi(device);
>     if (result != VK_SUCCESS) {
>        ralloc_free(device->compiler);
>        goto fail;
>     }
>
> -   isl_device_init(&device->isl_dev, &device->info, swizzled);
> -
>     device->local_fd = fd;
>     return VK_SUCCESS;
>
> @@ -257,6 +283,10 @@ static const VkExtensionProperties
> global_extensions[] = {
>        .extensionName = VK_KHR_GET_PHYSICAL_DEVICE_
> PROPERTIES_2_EXTENSION_NAME,
>        .specVersion = 1,
>     },
> +   {
> +      .extensionName = VK_KHX_EXTERNAL_MEMORY_
> CAPABILITIES_EXTENSION_NAME,
> +      .specVersion = 1,
> +   },
>  };
>
>  static const VkExtensionProperties device_extensions[] = {
> @@ -668,10 +698,21 @@ void anv_GetPhysicalDeviceProperties2KHR(
>      VkPhysicalDevice                            physicalDevice,
>      VkPhysicalDeviceProperties2KHR*             pProperties)
>  {
> +   ANV_FROM_HANDLE(anv_physical_device, pdevice, physicalDevice);
> +
>     anv_GetPhysicalDeviceProperties(physicalDevice,
> &pProperties->properties);
>
>     vk_foreach_struct(ext, pProperties->pNext) {
>        switch (ext->sType) {
> +      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHX: {
> +         VkPhysicalDeviceIDPropertiesKHX *id_props =
> +            (VkPhysicalDeviceIDPropertiesKHX *)ext;
> +         memcpy(id_props->deviceUUID, pdevice->device_uuid, VK_UUID_SIZE);
> +         memcpy(id_props->driverUUID, pdevice->driver_uuid, VK_UUID_SIZE);
> +         /* The LUID is for Windows. */
> +         id_props->deviceLUIDValid = false;
> +         break;
> +      }
>        default:
>           anv_debug_ignored_stype(ext->sType);
>           break;
> diff --git a/src/intel/vulkan/anv_entrypoints_gen.py
> b/src/intel/vulkan/anv_entrypoints_gen.py
> index 93511ec95e4..6cf9f5f4ddf 100644
> --- a/src/intel/vulkan/anv_entrypoints_gen.py
> +++ b/src/intel/vulkan/anv_entrypoints_gen.py
> @@ -37,6 +37,7 @@ supported_extensions = [
>     'VK_KHR_wayland_surface',
>     'VK_KHR_xcb_surface',
>     'VK_KHR_xlib_surface',
> +   'VK_KHX_external_memory_capabilities',
>  ]
>
>  # We generate a static hash table for entry point lookup
> diff --git a/src/intel/vulkan/anv_formats.c b/src/intel/vulkan/anv_
> formats.c
> index 6005791be5d..f91ba437f1e 100644
> --- a/src/intel/vulkan/anv_formats.c
> +++ b/src/intel/vulkan/anv_formats.c
> @@ -658,26 +658,74 @@ VkResult anv_GetPhysicalDeviceImageFormatProperties(
>
>  VkResult anv_GetPhysicalDeviceImageFormatProperties2KHR(
>      VkPhysicalDevice                            physicalDevice,
> -    const VkPhysicalDeviceImageFormatInfo2KHR*  pImageFormatInfo,
> -    VkImageFormatProperties2KHR*                pImageFormatProperties)
> +    const VkPhysicalDeviceImageFormatInfo2KHR*  base_info,
> +    VkImageFormatProperties2KHR*                base_props)
>  {
>     ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
> +   const VkPhysicalDeviceExternalImageFormatInfoKHX *external_info =
> NULL;
> +   VkExternalImageFormatPropertiesKHX *external_props = NULL;
>     VkResult result;
>
> -   result = anv_get_image_format_properties(physical_device,
> pImageFormatInfo,
> -               &pImageFormatProperties->imageFormatProperties);
> +   result = anv_get_image_format_properties(physical_device, base_info,
> +               &base_props->imageFormatProperties);
>     if (result != VK_SUCCESS)
> -      return result;
> +      goto fail;
>
> -   vk_foreach_struct(ext, pImageFormatProperties->pNext) {
> -      switch (ext->sType) {
> +   /* Extract input structs */
> +   vk_foreach_struct_const(s, base_info->pNext) {
> +      switch (s->sType) {
> +      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_
> INFO_KHX:
> +         external_info = (const void *) s;
> +         break;
>        default:
> -         anv_debug_ignored_stype(ext->sType);
> +         anv_debug_ignored_stype(s->sType);
> +         break;
> +      }
> +   }
> +
> +   /* Extract output structs */
> +   vk_foreach_struct(s, base_props->pNext) {
> +      switch (s->sType) {
> +      case VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES_KHX:
> +         external_props = (void *) s;
> +         break;
> +      default:
> +         anv_debug_ignored_stype(s->sType);
>

We have a find_struct helper precisely for doing this.  I guess this is
marginally more efficient if we have a bunch of them but it's kind-of ugly.
:-(  I'll see your dma-buf patches before I cast final judgment though.


>           break;
>        }
>     }
>
> +   /* From the Vulkan 1.0.42 spec:
> +    *
> +    *    If handleType is 0, vkGetPhysicalDeviceImageFormatProperties2KHR
> will
> +    *    behave as if VkPhysicalDeviceExternalImageFormatInfoKHX was not
> +    *    present and VkExternalImageFormatPropertiesKHX will be ignored.
> +    */
> +   if (external_info->handleType != 0) {
> +      /* FINISHME: Support at least one external memory type for images.
> */
> +      (void) external_props;
> +
> +      result = vk_errorf(VK_ERROR_FORMAT_NOT_SUPPORTED,
> +                         "unsupported VkExternalMemoryTypeFlagBitsKHX
> 0x%x",
> +                         external_info->handleType);
> +      goto fail;
> +   }
> +
>     return VK_SUCCESS;
> +
> + fail:
> +   if (result == VK_ERROR_FORMAT_NOT_SUPPORTED) {
> +      /* From the Vulkan 1.0.42 spec:
> +       *
> +       *    If the combination of parameters to
> +       *    vkGetPhysicalDeviceImageFormatProperties2KHR is not
> supported by
> +       *    the implementation for use in vkCreateImage, then all members
> of
> +       *    imageFormatProperties will be filled with zero.
> +       */
> +      base_props->imageFormatProperties = (VkImageFormatProperties) {0};
> +   }
> +
> +   return result;
>  }
>
>  void anv_GetPhysicalDeviceSparseImageFormatProperties(
> @@ -703,3 +751,14 @@ void anv_GetPhysicalDeviceSparseImageFo
> rmatProperties2KHR(
>     /* Sparse images are not yet supported. */
>     *pPropertyCount = 0;
>  }
> +
> +void anv_GetPhysicalDeviceExternalBufferPropertiesKHX(
> +    VkPhysicalDevice                             physicalDevice,
> +    const VkPhysicalDeviceExternalBufferInfoKHX* pExternalBufferInfo,
> +    VkExternalBufferPropertiesKHX*
>  pExternalBufferProperties)
> +{
> +   anv_finishme("Handle external buffers");
> +
> +   pExternalBufferProperties->externalMemoryProperties =
> +      (VkExternalMemoryPropertiesKHX) {0};
> +}
> diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_
> private.h
> index a4fd707fe9e..816ee8a509b 100644
> --- a/src/intel/vulkan/anv_private.h
> +++ b/src/intel/vulkan/anv_private.h
> @@ -531,6 +531,8 @@ struct anv_physical_device {
>      uint32_t                                    subslice_total;
>
>      uint8_t
>  pipeline_cache_uuid[VK_UUID_SIZE];
> +    uint8_t                                     driver_uuid[VK_UUID_SIZE];
> +    uint8_t                                     device_uuid[VK_UUID_SIZE];
>
>      struct wsi_device                       wsi_device;
>      int                                         local_fd;
> --
> 2.11.1
>
> _______________________________________________
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> mesa-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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