[PATCH 049/159] drm/amdkfd: add new flag for uncached GPU mapping

[Alex Deucher]

From: Eric Huang <jinhuieric.huang at amd.com>

The macro is for memory mapped by GPU as uncached.

Signed-off-by: Eric Huang <jinhuieric.huang at amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 include/uapi/linux/kfd_ioctl.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 695b606da4b1..18449f746097 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -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.
  *
-- 
2.29.2