From: Eric Huang <jinhuieric.huang@amd.com>
Date: Tue, 12 May 2020 19:25:38 +0000 (-0400)
Subject: drm/amdkfd: add new flag for uncached GPU mapping
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=98291d6d8c2f5864b7dfc1950ece4a7563597f13;p=linux.git

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>
---

diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 695b606da4b15..18449f7460978 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.
  *