v4.19.13 snapshot.
diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h
new file mode 100644
index 0000000..3925b0f
--- /dev/null
+++ b/arch/s390/include/asm/clp.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_S390_CLP_H
+#define _ASM_S390_CLP_H
+
+/* CLP common request & response block size */
+#define CLP_BLK_SIZE PAGE_SIZE
+
+#define CLP_LPS_BASE 0
+#define CLP_LPS_PCI 2
+
+struct clp_req_hdr {
+ u16 len;
+ u16 cmd;
+ u32 fmt : 4;
+ u32 reserved1 : 28;
+ u64 reserved2;
+} __packed;
+
+struct clp_rsp_hdr {
+ u16 len;
+ u16 rsp;
+ u32 fmt : 4;
+ u32 reserved1 : 28;
+ u64 reserved2;
+} __packed;
+
+/* CLP Response Codes */
+#define CLP_RC_OK 0x0010 /* Command request successfully */
+#define CLP_RC_CMD 0x0020 /* Command code not recognized */
+#define CLP_RC_PERM 0x0030 /* Command not authorized */
+#define CLP_RC_FMT 0x0040 /* Invalid command request format */
+#define CLP_RC_LEN 0x0050 /* Invalid command request length */
+#define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */
+#define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */
+#define CLP_RC_NODATA 0x0080 /* No data available */
+#define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */
+
+/* Store logical-processor characteristics request */
+struct clp_req_slpc {
+ struct clp_req_hdr hdr;
+} __packed;
+
+struct clp_rsp_slpc {
+ struct clp_rsp_hdr hdr;
+ u32 reserved2[4];
+ u32 lpif[8];
+ u32 reserved3[8];
+ u32 lpic[8];
+} __packed;
+
+struct clp_req_rsp_slpc {
+ struct clp_req_slpc request;
+ struct clp_rsp_slpc response;
+} __packed;
+
+#endif