http://gerrit-git.amd.com/c/compute/ec/libhsakmt/+/697296
Regards,
Eric
On 2022-06-27 11:33, Alex Deucher wrote:
On Fri, Jun 24, 2022 at 12:03 PM Eric Huang <jinhuieric.huang@xxxxxxx> wrote:
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@xxxxxxx>
Can you provide a link to the proposed userspace for this?
Alex
---
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
