# VkPhysicalDeviceVulkan11Properties(3) Manual Page

## Name

VkPhysicalDeviceVulkan11Properties - Structure specifying physical device properties for functionality promoted to Vulkan 1.1

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## C Specification

The `VkPhysicalDeviceVulkan11Properties` structure is defined as:

    // Provided by VK_VERSION_1_2
    typedef struct VkPhysicalDeviceVulkan11Properties {
        VkStructureType            sType;
        void*                      pNext;
        uint8_t                    deviceUUID[VK_UUID_SIZE];
        uint8_t                    driverUUID[VK_UUID_SIZE];
        uint8_t                    deviceLUID[VK_LUID_SIZE];
        uint32_t                   deviceNodeMask;
        VkBool32                   deviceLUIDValid;
        uint32_t                   subgroupSize;
        VkShaderStageFlags         subgroupSupportedStages;
        VkSubgroupFeatureFlags     subgroupSupportedOperations;
        VkBool32                   subgroupQuadOperationsInAllStages;
        VkPointClippingBehavior    pointClippingBehavior;
        uint32_t                   maxMultiviewViewCount;
        uint32_t                   maxMultiviewInstanceIndex;
        VkBool32                   protectedNoFault;
        uint32_t                   maxPerSetDescriptors;
        VkDeviceSize               maxMemoryAllocationSize;
    } VkPhysicalDeviceVulkan11Properties;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

## Description

- `deviceUUID` is an array of `VK_UUID_SIZE` `uint8_t` values representing a universally unique identifier for the device.

- `driverUUID` is an array of `VK_UUID_SIZE` `uint8_t` values representing a universally unique identifier for the driver build in use by the device.

- `deviceLUID` is an array of `VK_LUID_SIZE` `uint8_t` values representing a locally unique identifier for the device.

- `deviceNodeMask` is a `uint32_t` bitfield identifying the node within a linked device adapter corresponding to the device.

- `deviceLUIDValid` is a boolean value that will be `VK_TRUE` if `deviceLUID` contains a valid LUID and `deviceNodeMask` contains a valid node mask, and `VK_FALSE` if they do not.

- `subgroupSize` is the default number of invocations in each subgroup. `subgroupSize` is at least 1 if any of the physical device’s queues support `VK_QUEUE_GRAPHICS_BIT` or `VK_QUEUE_COMPUTE_BIT`. `subgroupSize` is a power-of-two.

- `subgroupSupportedStages` is a bitfield of VkShaderStageFlagBits describing the shader stages that group operations with subgroup scope are supported in. `subgroupSupportedStages` will have the `VK_SHADER_STAGE_COMPUTE_BIT` bit set if any of the physical device’s queues support `VK_QUEUE_COMPUTE_BIT`.

- `subgroupSupportedOperations` is a bitmask of VkSubgroupFeatureFlagBits specifying the sets of group operations with subgroup scope supported on this device. `subgroupSupportedOperations` will have the `VK_SUBGROUP_FEATURE_BASIC_BIT` bit set if any of the physical device’s queues support `VK_QUEUE_GRAPHICS_BIT` or `VK_QUEUE_COMPUTE_BIT`.

- `subgroupQuadOperationsInAllStages` is a boolean specifying whether quad group operations are available in all stages, or are restricted to fragment and compute stages.

- `pointClippingBehavior` is a VkPointClippingBehavior value specifying the point clipping behavior supported by the implementation.

- `maxMultiviewViewCount` is one greater than the maximum view index that can be used in a subpass.

- `maxMultiviewInstanceIndex` is the maximum valid value of instance index allowed to be generated by a drawing command recorded within a subpass of a multiview render pass instance.

- `protectedNoFault` specifies how an implementation behaves when an application attempts to write to unprotected memory in a protected queue operation, read from protected memory in an unprotected queue operation, or perform a query in a protected queue operation. If this limit is `VK_TRUE`, such writes will be discarded or have undefined values written, reads and queries will return undefined values. If this limit is `VK_FALSE`, applications must not perform these operations. See [memory-protected-access-rules] for more information.

- `maxPerSetDescriptors` is a maximum number of descriptors (summed over all descriptor types) in a single descriptor set that is guaranteed to satisfy any implementation-dependent constraints on the size of a descriptor set itself. Applications can query whether a descriptor set that goes beyond this limit is supported using vkGetDescriptorSetLayoutSupport.

- `maxMemoryAllocationSize` is the maximum size of a memory allocation that can be created, even if there is more space available in the heap.

If the `VkPhysicalDeviceVulkan11Properties` structure is included in the `pNext` chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

These properties correspond to Vulkan 1.1 functionality.

The members of `VkPhysicalDeviceVulkan11Properties` have the same values as the corresponding members of VkPhysicalDeviceIDProperties, VkPhysicalDeviceSubgroupProperties, VkPhysicalDevicePointClippingProperties, VkPhysicalDeviceMultiviewProperties, VkPhysicalDeviceProtectedMemoryProperties, and VkPhysicalDeviceMaintenance3Properties.

Note | The `subgroupSupportedStages`, `subgroupSupportedOperations`, and `subgroupQuadOperationsInAllStages` members of this structure correspond respectively to the VkPhysicalDeviceSubgroupProperties::`supportedStages`, VkPhysicalDeviceSubgroupProperties::`supportedOperations`, and VkPhysicalDeviceSubgroupProperties::`quadOperationsInAllStages` members, but add the `subgroup` prefix to the member name.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceVulkan11Properties-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_PROPERTIES`

## See Also

VK_VERSION_1_2, VkBool32, VkDeviceSize, VkPointClippingBehavior, VkShaderStageFlags, VkStructureType, VkSubgroupFeatureFlags

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0