[Mesa-dev] [PATCH 2/2] radv: add external memory support.

Edward O'Callaghan funfunctor at folklore1984.net
Mon Mar 27 02:51:42 UTC 2017



On 03/17/2017 09:05 AM, Bas Nieuwenhuizen wrote:
> On Wed, Mar 15, 2017 at 1:25 AM, Dave Airlie <airlied at gmail.com> wrote:
>> From: Dave Airlie <airlied at redhat.com>
>>
>> This adds support for exporting 2D images, to an
>> opaque fd.
>>
>> This implements the:
>> VK_KHX_external_memory_capabilities
>> VK_KHX_external_memory
>> VK_KHX_external_memory_fd
>>
>> extensions.
>>
>> These are used by SteamVR, we should work with anv
>> to decide if we should ship these under an env
>> var or something.
>>
>> Signed-off-by: Dave Airlie <airlied at redhat.com>
>> ---
>>  src/amd/vulkan/radv_device.c           |  85 ++++++++++++++++++++++-----
>>  src/amd/vulkan/radv_entrypoints_gen.py |   3 +
>>  src/amd/vulkan/radv_formats.c          | 104 ++++++++++++++++++++++++++++++++-
>>  3 files changed, 178 insertions(+), 14 deletions(-)
>>
>> diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
>> index d1fd58d..7266d0a 100644
>> --- a/src/amd/vulkan/radv_device.c
>> +++ b/src/amd/vulkan/radv_device.c
>> @@ -84,6 +84,18 @@ static const VkExtensionProperties instance_extensions[] = {
>>                 .specVersion = 5,
>>         },
>>  #endif
>> +       {
>> +               .extensionName = VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
> 
> Why is this in here? Even if it turns out we want this, can we put it
> in a separate patch.

Oh good spot, I didn't see that maybe this hulk got conflated in by
accident.

With that left out, the rest still LGTM.
Edward.

> 
> 
>> +       {
>> +               .extensionName = VK_KHX_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
>> +       {
>> +               .extensionName = VK_KHX_EXTERNAL_SEMAPHORE_CAPABILITIES_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
>>  };
>>
>>  static const VkExtensionProperties common_device_extensions[] = {
>> @@ -115,6 +127,18 @@ static const VkExtensionProperties common_device_extensions[] = {
>>                 .extensionName = VK_NV_DEDICATED_ALLOCATION_EXTENSION_NAME,
>>                 .specVersion = 1,
>>         },
>> +       {
>> +               .extensionName = VK_KHX_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
>> +       {
>> +               .extensionName = VK_KHX_EXTERNAL_MEMORY_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
>> +       {
>> +               .extensionName = VK_KHX_EXTERNAL_MEMORY_FD_EXTENSION_NAME,
>> +               .specVersion = 1,
>> +       },
>>  };
>>
>>  static VkResult
>> @@ -255,7 +279,6 @@ radv_physical_device_finish(struct radv_physical_device *device)
>>         close(device->local_fd);
>>  }
>>
>> -
>>  static void *
>>  default_alloc_func(void *pUserData, size_t size, size_t align,
>>                     VkSystemAllocationScope allocationScope)
>> @@ -1694,7 +1717,7 @@ VkResult radv_AllocateMemory(
>>         VkResult result;
>>         enum radeon_bo_domain domain;
>>         uint32_t flags = 0;
>> -       const VkDedicatedAllocationMemoryAllocateInfoNV *dedicate_info = NULL;
>> +
>>         assert(pAllocateInfo->sType == VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO);
>>
>>         if (pAllocateInfo->allocationSize == 0) {
>> @@ -1703,15 +1726,10 @@ VkResult radv_AllocateMemory(
>>                 return VK_SUCCESS;
>>         }
>>
>> -       vk_foreach_struct(ext, pAllocateInfo->pNext) {
>> -               switch (ext->sType) {
>> -               case VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV:
>> -                       dedicate_info = (const VkDedicatedAllocationMemoryAllocateInfoNV *)ext;
>> -                       break;
>> -               default:
>> -                       break;
>> -               }
>> -       }
>> +       const VkImportMemoryFdInfoKHX *import_info =
>> +               vk_find_struct_const(pAllocateInfo->pNext, IMPORT_MEMORY_FD_INFO_KHX);
>> +       const VkDedicatedAllocationMemoryAllocateInfoNV *dedicate_info =
>> +               vk_find_struct_const(pAllocateInfo->pNext, DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV);
>>
>>         mem = vk_alloc2(&device->alloc, pAllocator, sizeof(*mem), 8,
>>                           VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
>> @@ -1726,6 +1744,17 @@ VkResult radv_AllocateMemory(
>>                 mem->buffer = NULL;
>>         }
>>
>> +       if (import_info) {
>> +               assert(import_info->handleType ==
>> +                      VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHX);
>> +               mem->bo = device->ws->buffer_from_fd(device->ws, import_info->fd,
>> +                                                    NULL, NULL);
>> +               if (!mem->bo)
>> +                       goto fail;
>> +               else
>> +                       goto out_success;
>> +       }
>> +
>>         uint64_t alloc_size = align_u64(pAllocateInfo->allocationSize, 4096);
>>         if (pAllocateInfo->memoryTypeIndex == RADV_MEM_TYPE_GTT_WRITE_COMBINE ||
>>             pAllocateInfo->memoryTypeIndex == RADV_MEM_TYPE_GTT_CACHED)
>> @@ -1749,7 +1778,7 @@ VkResult radv_AllocateMemory(
>>                 goto fail;
>>         }
>>         mem->type_index = pAllocateInfo->memoryTypeIndex;
>> -
>> +out_success:
> 
> maybe put this a bit ealirer, so we init mem->type_index?
> 
>>         *pMem = radv_device_memory_to_handle(mem);
>>
>>         return VK_SUCCESS;
>> @@ -2695,7 +2724,6 @@ void radv_DestroySampler(
>>         vk_free2(&device->alloc, pAllocator, sampler);
>>  }
>>
>> -
>>  /* vk_icd.h does not declare this function, so we declare it here to
>>   * suppress Wmissing-prototypes.
>>   */
>> @@ -2739,3 +2767,34 @@ vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t *pSupportedVersion)
>>         *pSupportedVersion = MIN2(*pSupportedVersion, 3u);
>>         return VK_SUCCESS;
>>  }
>> +
>> +VkResult radv_GetMemoryFdKHX(VkDevice _device,
>> +                            VkDeviceMemory _memory,
>> +                            VkExternalMemoryHandleTypeFlagsKHX handleType,
>> +                            int *pFD)
>> +{
>> +       RADV_FROM_HANDLE(radv_device, device, _device);
>> +       RADV_FROM_HANDLE(radv_device_memory, memory, _memory);
>> +
>> +       /* We support only one handle type. */
>> +       assert(handleType == VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHX);
>> +
>> +       bool ret = radv_get_memory_fd(device, memory, pFD);
>> +       if (ret == false)
>> +               return VK_ERROR_OUT_OF_DEVICE_MEMORY;
>> +       return VK_SUCCESS;
>> +}
>> +
>> +VkResult radv_GetMemoryFdPropertiesKHX(VkDevice _device,
>> +                                      VkExternalMemoryHandleTypeFlagBitsKHX handleType,
>> +                                      int fd,
>> +                                      VkMemoryFdPropertiesKHX *pMemoryFdProperties)
>> +{
>> +   /* The valid usage section for this function says:
>> +    *
>> +    *    "handleType must not be one of the handle types defined as opaque."
>> +    *
>> +    * Since we only handle opaque handles for now, there are no FD properties.
>> +    */
>> +   return VK_ERROR_INVALID_EXTERNAL_HANDLE_KHX;
>> +}
>> diff --git a/src/amd/vulkan/radv_entrypoints_gen.py b/src/amd/vulkan/radv_entrypoints_gen.py
>> index b7b2bcf..c2eee4e 100644
>> --- a/src/amd/vulkan/radv_entrypoints_gen.py
>> +++ b/src/amd/vulkan/radv_entrypoints_gen.py
>> @@ -39,6 +39,9 @@ supported_extensions = [
>>     'VK_KHR_wayland_surface',
>>     'VK_KHR_xcb_surface',
>>     'VK_KHR_xlib_surface',
>> +   'VK_KHX_external_memory_capabilities',
>> +   'VK_KHX_external_memory',
>> +   'VK_KHX_external_memory_fd',
>>  ]
>>
>>  # We generate a static hash table for entry point lookup
>> diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c
>> index e4cc4ba..4c3fba1 100644
>> --- a/src/amd/vulkan/radv_formats.c
>> +++ b/src/amd/vulkan/radv_formats.c
>> @@ -28,6 +28,7 @@
>>  #include "sid.h"
>>  #include "r600d_common.h"
>>
>> +#include "util/vk_util.h"
>>  #include "util/u_half.h"
>>  #include "util/format_srgb.h"
>>  #include "util/format_r11g11b10f.h"
>> @@ -1140,14 +1141,107 @@ VkResult radv_GetPhysicalDeviceImageFormatProperties(
>>                                                 pImageFormatProperties);
>>  }
>>
>> +static void
>> +get_external_image_format_properties(const VkPhysicalDeviceImageFormatInfo2KHR *pImageFormatInfo,
>> +                                    VkExternalMemoryPropertiesKHX *external_properties)
>> +{
>> +       VkExternalMemoryFeatureFlagBitsKHX flags = 0;
>> +       VkExternalMemoryHandleTypeFlagsKHX export_flags = 0;
>> +       VkExternalMemoryHandleTypeFlagsKHX compat_flags = 0;
>> +       switch (pImageFormatInfo->type) {
>> +       case VK_IMAGE_TYPE_2D:
>> +               flags = VK_EXTERNAL_MEMORY_FEATURE_DEDICATED_ONLY_BIT_KHX|VK_EXTERNAL_MEMORY_FEATURE_EXPORTABLE_BIT_KHX|VK_EXTERNAL_MEMORY_FEATURE_IMPORTABLE_BIT_KHX;
>> +               compat_flags = export_flags = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHX;
>> +               break;
>> +       default:
>> +               break;
>> +       }
>> +
>> +       *external_properties = (VkExternalMemoryPropertiesKHX) {
>> +               .externalMemoryFeatures = flags,
>> +               .exportFromImportedHandleTypes = export_flags,
>> +               .compatibleHandleTypes = compat_flags,
>> +       };
>> +}
>> +
>>  VkResult radv_GetPhysicalDeviceImageFormatProperties2KHR(
>>         VkPhysicalDevice                            physicalDevice,
>>         const VkPhysicalDeviceImageFormatInfo2KHR  *base_info,
>>         VkImageFormatProperties2KHR                *base_props)
>>  {
>>         RADV_FROM_HANDLE(radv_physical_device, physical_device, physicalDevice);
>> -       return radv_get_image_format_properties(physical_device, base_info,
>> +       const VkPhysicalDeviceExternalImageFormatInfoKHX *external_info = NULL;
>> +       VkExternalImageFormatPropertiesKHX *external_props = NULL;
>> +       VkResult result;
>> +
>> +       result = radv_get_image_format_properties(physical_device, base_info,
>>                                                 &base_props->imageFormatProperties);
>> +       if (result != VK_SUCCESS)
>> +               return result;
>> +
>> +          /* 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:
>> +                       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:
>> +                       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 && external_info->handleType != 0) {
>> +               switch (external_info->handleType) {
>> +               case VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHX:
>> +                       get_external_image_format_properties(base_info, &external_props->externalMemoryProperties);
>> +                       break;
>> +               default:
>> +                       /* From the Vulkan 1.0.42 spec:
>> +                        *
>> +                        *    If handleType is not compatible with the [parameters] specified
>> +                        *    in VkPhysicalDeviceImageFormatInfo2KHR, then
>> +                        *    vkGetPhysicalDeviceImageFormatProperties2KHR returns
>> +                        *    VK_ERROR_FORMAT_NOT_SUPPORTED.
>> +                        */
>> +                       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 radv_GetPhysicalDeviceSparseImageFormatProperties(
>> @@ -1173,3 +1267,11 @@ void radv_GetPhysicalDeviceSparseImageFormatProperties2KHR(
>>         /* Sparse images are not yet supported. */
>>         *pPropertyCount = 0;
>>  }
>> +
>> +void radv_GetPhysicalDeviceExternalBufferPropertiesKHX(
>> +       VkPhysicalDevice                            physicalDevice,
>> +       const VkPhysicalDeviceExternalBufferInfoKHX *pExternalBufferInfo,
>> +       VkExternalBufferPropertiesKHX               *pExternalBufferProperties)
>> +{
>> +
> 
> At least put a todo & print a warning here?
> 
>> +}
>> --
>> 2.7.4
>>
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>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
> _______________________________________________
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