From 2f86c58695d28c8e45a1caaefa862c0c41f02195 Mon Sep 17 00:00:00 2001
From: Eric Huang <jinhuieric.huang@amd.com>
Date: Fri, 24 Jun 2022 11:03:37 -0400
Subject: drm/amdkfd: add new flag for svm
Git-commit: fce7bf30d3309ea325a7ec452456f8f7c079f622
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
It is to add new option for always keeping gpu mapping.
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
include/uapi/linux/kfd_ioctl.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index d993a0d50994..d6bda40fbcf7 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -613,6 +613,8 @@ enum kfd_mmio_remap {
#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
/**
* kfd_ioctl_svm_op - SVM ioctl operations
--
2.38.1