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drm/amdkfd: add new flag for uncached GPU mapping 

The macro is for memory mapped by GPU as uncached.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Huang 2020-05-12 15:25:38 -04:00 committed by Alex Deucher
parent 72b4db0f58
commit 98291d6d8c
1 changed files with 1 additions and 0 deletions
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1
include/uapi/linux/kfd_ioctl.h
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@ -351,6 +351,7 @@ struct kfd_ioctl_acquire_vm_args {
#define KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28)
#define KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27)
#define KFD_IOC_ALLOC_MEM_FLAGS_COHERENT (1 << 26)
#define KFD_IOC_ALLOC_MEM_FLAGS_UNCACHED (1 << 25)
/* Allocate memory for later SVM (shared virtual memory) mapping.
*