xref: /linux/arch/s390/include/asm/clp.h (revision 6fdcba32711044c35c0e1b094cbd8f3f0b4472c9)
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 #define CLP_LPS_BASE	0
9 #define CLP_LPS_PCI	2
10 
11 struct clp_req_hdr {
12 	u16 len;
13 	u16 cmd;
14 	u32 fmt		: 4;
15 	u32 reserved1	: 28;
16 	u64 reserved2;
17 } __packed;
18 
19 struct clp_rsp_hdr {
20 	u16 len;
21 	u16 rsp;
22 	u32 fmt		: 4;
23 	u32 reserved1	: 28;
24 	u64 reserved2;
25 } __packed;
26 
27 /* CLP Response Codes */
28 #define CLP_RC_OK			0x0010	/* Command request successfully */
29 #define CLP_RC_CMD			0x0020	/* Command code not recognized */
30 #define CLP_RC_PERM			0x0030	/* Command not authorized */
31 #define CLP_RC_FMT			0x0040	/* Invalid command request format */
32 #define CLP_RC_LEN			0x0050	/* Invalid command request length */
33 #define CLP_RC_8K			0x0060	/* Command requires 8K LPCB */
34 #define CLP_RC_RESNOT0			0x0070	/* Reserved field not zero */
35 #define CLP_RC_NODATA			0x0080	/* No data available */
36 #define CLP_RC_FC_UNKNOWN		0x0100	/* Function code not recognized */
37 
38 /* Store logical-processor characteristics request */
39 struct clp_req_slpc {
40 	struct clp_req_hdr hdr;
41 } __packed;
42 
43 struct clp_rsp_slpc {
44 	struct clp_rsp_hdr hdr;
45 	u32 reserved2[4];
46 	u32 lpif[8];
47 	u32 reserved3[8];
48 	u32 lpic[8];
49 } __packed;
50 
51 struct clp_req_rsp_slpc {
52 	struct clp_req_slpc request;
53 	struct clp_rsp_slpc response;
54 } __packed;
55 
56 #endif
57