// Copyright (c) 2018-2019 Khronos Group. This work is licensed under a
// Creative Commons Attribution 4.0 International License; see
// http://creativecommons.org/licenses/by/4.0/

include::meta/VK_EXT_memory_priority.txt[]

Last Modified Date::
    2018-10-08
Contributors::
  - Jeff Bolz, NVIDIA
  - Jeff Juliano, NVIDIA

This extension adds a pname:priority value specified at memory allocation
time.
On some systems with both device-local and non-device-local memory heaps,
the implementation may transparently move memory from one heap to another
when a heap becomes full (for example, when the total memory used across all
processes exceeds the size of the heap).
In such a case, this priority value may be used to determine which
allocations are more likely to remain in device-local memory.

=== New Enum Constants

  * Extending elink:VkStructureType:
  ** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PRIORITY_FEATURES_EXT
  ** ename:VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT

=== New Enums

None.

=== New Structures

  * slink:VkPhysicalDeviceMemoryPriorityFeaturesEXT
  * slink:VkMemoryPriorityAllocateInfoEXT

=== New Functions

None.

=== Version History

 * Revision 1, 2018-10-08 (Jeff Bolz)
   - Initial revision