1 files changed, 32 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/diag.h b/arch/s390/include/uapi/asm/diag.h
new file mode 100644
index 000000000000..b7e6ccb4ff6e
--- /dev/null
+++ b/arch/s390/include/uapi/asm/diag.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Diag ioctls and its associated structures definitions.
+ *
+ * Copyright IBM Corp. 2024
+ */
+
+#ifndef __S390_UAPI_ASM_DIAG_H
+#define __S390_UAPI_ASM_DIAG_H
+
+#include <linux/types.h>
+
+#define DIAG_MAGIC_STR 'D'
+
+struct diag324_pib {
+	__u64 address;
+	__u64 sequence;
+};
+
+struct diag310_memtop {
+	__u64 address;
+	__u64 nesting_lvl;
+};
+
+/* Diag ioctl definitions */
+#define DIAG324_GET_PIBBUF	_IOWR(DIAG_MAGIC_STR, 0x77, struct diag324_pib)
+#define DIAG324_GET_PIBLEN	_IOR(DIAG_MAGIC_STR, 0x78, size_t)
+#define DIAG310_GET_STRIDE	_IOR(DIAG_MAGIC_STR, 0x79, size_t)
+#define DIAG310_GET_MEMTOPLEN	_IOWR(DIAG_MAGIC_STR, 0x7a, size_t)
+#define DIAG310_GET_MEMTOPBUF	_IOWR(DIAG_MAGIC_STR, 0x7b, struct diag310_memtop)
+
+#endif /* __S390_UAPI_ASM_DIAG_H */