arch/s390/include/asm/clp.h

   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