amdkfd: Implement the Get Version IOCTL

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 3130265..64c73ba 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -123,7 +123,16 @@ static int kfd_open(struct inode *inode, struct file *filep)
 static long kfd_ioctl_get_version(struct file *filep, struct kfd_process *p,
                                        void __user *arg)
 {
-       return -ENODEV;
+       struct kfd_ioctl_get_version_args args;
+       int err = 0;
+
+       args.major_version = KFD_IOCTL_MAJOR_VERSION;
+       args.minor_version = KFD_IOCTL_MINOR_VERSION;
+
+       if (copy_to_user(arg, &args, sizeof(args)))
+               err = -EFAULT;
+
+       return err;
 }
 
 static int set_queue_properties_from_user(struct queue_properties *q_properties,