xref: /openbmc/linux/arch/s390/include/asm/clp.h (revision b02002cc)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_S390_CLP_H
3 #define _ASM_S390_CLP_H
4 
5 /* CLP common request & response block size */
6 #define CLP_BLK_SIZE			PAGE_SIZE
7 
8 /* Call Logical Processor - Command Code */
9 #define CLP_SLPC		0x0001
10 
11 #define CLP_LPS_BASE	0
12 #define CLP_LPS_PCI	2
13 
14 struct clp_req_hdr {
15 	u16 len;
16 	u16 cmd;
17 	u32 fmt		: 4;
18 	u32 reserved1	: 28;
19 	u64 reserved2;
20 } __packed;
21 
22 struct clp_rsp_hdr {
23 	u16 len;
24 	u16 rsp;
25 	u32 fmt		: 4;
26 	u32 reserved1	: 28;
27 	u64 reserved2;
28 } __packed;
29 
30 /* CLP Response Codes */
31 #define CLP_RC_OK			0x0010	/* Command request successfully */
32 #define CLP_RC_CMD			0x0020	/* Command code not recognized */
33 #define CLP_RC_PERM			0x0030	/* Command not authorized */
34 #define CLP_RC_FMT			0x0040	/* Invalid command request format */
35 #define CLP_RC_LEN			0x0050	/* Invalid command request length */
36 #define CLP_RC_8K			0x0060	/* Command requires 8K LPCB */
37 #define CLP_RC_RESNOT0			0x0070	/* Reserved field not zero */
38 #define CLP_RC_NODATA			0x0080	/* No data available */
39 #define CLP_RC_FC_UNKNOWN		0x0100	/* Function code not recognized */
40 
41 /* Store logical-processor characteristics request */
42 struct clp_req_slpc {
43 	struct clp_req_hdr hdr;
44 } __packed;
45 
46 struct clp_rsp_slpc {
47 	struct clp_rsp_hdr hdr;
48 	u32 reserved2[4];
49 	u32 lpif[8];
50 	u32 reserved3[8];
51 	u32 lpic[8];
52 } __packed;
53 
54 struct clp_req_rsp_slpc {
55 	struct clp_req_slpc request;
56 	struct clp_rsp_slpc response;
57 } __packed;
58 
59 #endif
60