# VkMemoryOverallocationBehaviorAMD(3) Manual Page

## Name

VkMemoryOverallocationBehaviorAMD - Specify memory overallocation behavior

## C Specification

Possible values for VkDeviceMemoryOverallocationCreateInfoAMD::overallocationBehavior include:

    typedef enum VkMemoryOverallocationBehaviorAMD {
        VK_MEMORY_OVERALLOCATION_BEHAVIOR_DEFAULT_AMD = 0,
        VK_MEMORY_OVERALLOCATION_BEHAVIOR_ALLOWED_AMD = 1,
        VK_MEMORY_OVERALLOCATION_BEHAVIOR_DISALLOWED_AMD = 2,
        VK_MEMORY_OVERALLOCATION_BEHAVIOR_MAX_ENUM_AMD = 0x7FFFFFFF
    } VkMemoryOverallocationBehaviorAMD;

## Description

- `VK_MEMORY_OVERALLOCATION_BEHAVIOR_DEFAULT_AMD` lets the implementation decide if overallocation should be allowed.

- `VK_MEMORY_OVERALLOCATION_BEHAVIOR_ALLOWED_AMD` specifies overallocation is allowed if platform permits.

- `VK_MEMORY_OVERALLOCATION_BEHAVIOR_DISALLOWED_AMD` specifies the application is not allowed to allocate device memory beyond the heap sizes reported by VkPhysicalDeviceMemoryProperties. Allocations that are not explicitly made by the application within the scope of the Vulkan instance are not accounted for.

## See Also

VkDeviceMemoryOverallocationCreateInfoAMD

## 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.