Update kfd_ioctl.h

Copied from kernel repository.

Change-Id: I9ed021cfb5b297d9a91dce93ed6355c95fb1127b
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Shaoyun Liu <Shaoyun.Liu@amd.com>


[ROCm/ROCR-Runtime commit: e5dd2f88c6]

projects/rocr-runtime/include/linux/kfd_ioctl.h

@@ -311,10 +311,9 @@ struct kfd_ioctl_set_process_dgpu_aperture_args {
 #define KFD_IOC_ALLOC_MEM_FLAGS_APU_SCRATCH		(1 << 4)
 
 #define KFD_IOC_ALLOC_MEM_FLAGS_DGPU_AQL_QUEUE_MEM		(1 << 5)
-
 #define KFD_IOC_ALLOC_MEM_FLAGS_USERPTR			(1 << 6)
-
 #define KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL		(1 << 7)
+#define KFD_IOC_ALLOC_MEM_FLAGS_COHERENT		(1 << 8)
 
 struct kfd_ioctl_alloc_memory_of_gpu_new_args {
 	uint64_t va_addr;	/* to KFD */