C Specification

The VkGpaSessionCreateInfoAMD structure is defined as:

// Provided by VK_AMD_gpa_interface
typedef struct VkGpaSessionCreateInfoAMD {
    VkStructureType    sType;
    const void*        pNext;
    VkGpaSessionAMD    secondaryCopySource;
} VkGpaSessionCreateInfoAMD;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • secondaryCopySource is a VkGpaSessionAMD handle whose results can be copied into this session.

Description

When sampling counters inside secondary command buffers, repeated invocations of the same secondary command buffer causes the previous results to be overwritten. To avoid this a GPA session object’s memory layout can be cloned for use with multiple secondary invocations by specifying its handle in secondaryCopySource, allowing the new GPA session object to be the target of a copy using vkCmdCopyGpaSessionResultsAMD.

Valid Usage

  • VUID-VkGpaSessionCreateInfoAMD-secondaryCopySource-12461
    secondaryCopySource must have been used previously to begin and end a session, and it must not have been reset since then

Valid Usage (Implicit)

See Also

VK_AMD_gpa_interface, VkGpaSessionAMD, VkStructureType, vkCreateGpaSessionAMD

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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0