author: Felix Kuehling <Felix.Kuehling@amd.com> 2021-07-16 22:46:21 -0400
committer: Alex Deucher <alexander.deucher@amd.com> 2021-08-06 16:12:32 -0400
commit: a43e2a0e11491b73e2acaa27ee74d6c3b86deac0
parent: ed7c28c77103e1441ed22eb492b26b9b035403f7
Commit Summary:
Diffstat:
1 file changed, 9 insertions, 7 deletions
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 3cb5b5dd9f77..af96af174dc4 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -31,9 +31,10 @@
* - 1.3 - Add SMI events support
* - 1.4 - Indicate new SRAM EDC bit in device properties
* - 1.5 - Add SVM API
+ * - 1.6 - Query clear flags in SVM get_attr API
*/
#define KFD_IOCTL_MAJOR_VERSION 1
-#define KFD_IOCTL_MINOR_VERSION 5
+#define KFD_IOCTL_MINOR_VERSION 6
struct kfd_ioctl_get_version_args {
__u32 major_version; /* from KFD */
@@ -575,18 +576,19 @@ struct kfd_ioctl_svm_attribute {
* @KFD_IOCTL_SVM_ATTR_PREFERRED_LOC or
* @KFD_IOCTL_SVM_ATTR_PREFETCH_LOC resepctively. For
* @KFD_IOCTL_SVM_ATTR_SET_FLAGS, flags of all pages will be
- * aggregated by bitwise AND. The minimum migration granularity
- * throughout the range will be returned for
- * @KFD_IOCTL_SVM_ATTR_GRANULARITY.
+ * aggregated by bitwise AND. That means, a flag will be set in the
+ * output, if that flag is set for all pages in the range. For
+ * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS, flags of all pages will be
+ * aggregated by bitwise NOR. That means, a flag will be set in the
+ * output, if that flag is clear for all pages in the range.
+ * The minimum migration granularity throughout the range will be
+ * returned for @KFD_IOCTL_SVM_ATTR_GRANULARITY.
*
* Querying of accessibility attributes works by initializing the
* attribute type to @KFD_IOCTL_SVM_ATTR_ACCESS and the value to the
* GPUID being queried. Multiple attributes can be given to allow
* querying multiple GPUIDs. The ioctl function overwrites the
* attribute type to indicate the access for the specified GPU.
- *
- * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS is invalid for
- * @KFD_IOCTL_SVM_OP_GET_ATTR.
*/
struct kfd_ioctl_svm_args {
__u64 start_addr;