[PATCH 1/3] drm/amdkfd: add new flags for svm

[Eric Huang]

It is to add new options for always keeping gpu mapping
and custom of coarse grain allocation intead of fine
grain as default.

Signed-off-by: Eric Huang <jinhuieric.huang at amd.com>
---
 include/uapi/linux/kfd_ioctl.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index fd49dde4d5f4..9dbf215675a0 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -1076,6 +1076,10 @@ struct kfd_ioctl_cross_memory_copy_args {
 #define KFD_IOCTL_SVM_FLAG_GPU_EXEC    0x00000010
 /* GPUs mostly read, may allow similar optimizations as RO, but writes fault */
 #define KFD_IOCTL_SVM_FLAG_GPU_READ_MOSTLY     0x00000020
+/* Keep GPU memory mapping always valid as if XNACK is disable */
+#define KFD_IOCTL_SVM_FLAG_GPU_ALWAYS_MAPPED   0x00000040
+/* Allow set custom flags instead of defaults */
+#define KFD_IOCTL_SVM_FLAG_CUSTOM      0x80000000
 
 /**
  * kfd_ioctl_svm_op - SVM ioctl operations
-- 
2.25.1