MxMemMallocPolicy

Description

Enumeration class used by DeviceMallocFuncHookReg.

Structure Definition

typedef enum MxMemMallocPolicy {
     MX_MEM_MALLOC_HUGE_FIRST,
     MX_MEM_MALLOC_HUGE_ONLY,
     MX_MEM_MALLOC_NORMAL_ONLY,
     MX_MEM_MALLOC_HUGE_FIRST_P2P,
     MX_MEM_MALLOC_HUGE_ONLY_P2P,
     MX_MEM_MALLOC_NORMAL_ONLY_P2P,
     MX_MEM_TYPE_LOW_BAND_WIDTH = 0x0100,
     MX_MEM_TYPE_HIGH_BAND_WIDTH = 0x1000,
 } MxMemMallocPolicy;

Parameters

Parameter	Description
MX_MEM_MALLOC_HUGE_FIRST	When the allocated memory is less than or equal to 1 MB, only normal page memory is allocated even under this memory allocation policy. When the allocated memory is greater than 1 MB, the allocation of huge page memory is prioritized. If the huge page memory is insufficient, normal page memory is allocated.
MX_MEM_MALLOC_HUGE_ONLY	Allocate only huge page memory. If the huge page memory is insufficient, an error is returned.
MX_MEM_MALLOC_NORMAL_ONLY	Allocate only normal page memory. If the normal page memory is insufficient, an error is returned.
MX_MEM_MALLOC_HUGE_FIRST_P2P	Applicable to inter-device memory copy. Prioritize the allocation of huge page memory. If huge page memory is insufficient, allocate normal page memory.
MX_MEM_MALLOC_HUGE_ONLY_P2P	Applicable to inter-device memory copy. Allocate only huge page memory. If the huge page memory is insufficient, an error is returned.
MX_MEM_MALLOC_NORMAL_ONLY_P2P	Applicable to inter-device memory copy. Allocate only normal page memory. If the normal page memory is insufficient, an error is returned.
MX_MEM_TYPE_LOW_BAND_WIDTH = 0x0100	Allocate memory from the physical memory with low bandwidth. This option is invalid. By default, the system selects the allocation rule based on hardware-supported memory types.
MX_MEM_TYPE_HIGH_BAND_WIDTH = 0x1000	Allocate memory from the physical memory with high bandwidth. This option is invalid. By default, the system selects the allocation rule based on hardware-supported memory types.

Parent topic: General Data Structures