# VkPhysicalDeviceVulkan11Properties(3) Manual Page

## Name

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

## C Specification

To query the properties of the driver corresponding to Vulkan 1.1 functionality, add VkPhysicalDeviceVulkan11Properties to the `pNext` chain of the VkPhysicalDeviceProperties2 structure.

The `VkPhysicalDeviceVulkan11Properties` structure is defined as:

    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

- `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 subgroup operations 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 subgroup operations 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 subgroup 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 the behavior of the implementation when protected memory access rules are broken. If `protectedNoFault` is `VK_TRUE`, breaking those rules will not result in process termination or device loss.

- `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.

## Description

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

Valid Usage (Implicit)

- `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_PROPERTIES`

- `pointClippingBehavior` must be a valid VkPointClippingBehavior value

## See Also

`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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.