sclp.h revision 62b7494209495847269a6ce0504cbefd23d42eb1
1/* 2 * Copyright IBM Corp. 1999, 2009 3 * 4 * Author(s): Martin Peschke <mpeschke@de.ibm.com> 5 * Martin Schwidefsky <schwidefsky@de.ibm.com> 6 */ 7 8#ifndef __SCLP_H__ 9#define __SCLP_H__ 10 11#include <linux/types.h> 12#include <linux/list.h> 13#include <asm/sclp.h> 14#include <asm/ebcdic.h> 15 16/* maximum number of pages concerning our own memory management */ 17#define MAX_KMEM_PAGES (sizeof(unsigned long) << 3) 18#define MAX_CONSOLE_PAGES 6 19 20#define EVTYP_OPCMD 0x01 21#define EVTYP_MSG 0x02 22#define EVTYP_STATECHANGE 0x08 23#define EVTYP_PMSGCMD 0x09 24#define EVTYP_CNTLPROGOPCMD 0x20 25#define EVTYP_CNTLPROGIDENT 0x0B 26#define EVTYP_SIGQUIESCE 0x1D 27#define EVTYP_VT220MSG 0x1A 28#define EVTYP_CONFMGMDATA 0x04 29#define EVTYP_SDIAS 0x1C 30 31#define EVTYP_OPCMD_MASK 0x80000000 32#define EVTYP_MSG_MASK 0x40000000 33#define EVTYP_STATECHANGE_MASK 0x01000000 34#define EVTYP_PMSGCMD_MASK 0x00800000 35#define EVTYP_CTLPROGOPCMD_MASK 0x00000001 36#define EVTYP_CTLPROGIDENT_MASK 0x00200000 37#define EVTYP_SIGQUIESCE_MASK 0x00000008 38#define EVTYP_VT220MSG_MASK 0x00000040 39#define EVTYP_CONFMGMDATA_MASK 0x10000000 40#define EVTYP_SDIAS_MASK 0x00000010 41 42#define GNRLMSGFLGS_DOM 0x8000 43#define GNRLMSGFLGS_SNDALRM 0x4000 44#define GNRLMSGFLGS_HOLDMSG 0x2000 45 46#define LNTPFLGS_CNTLTEXT 0x8000 47#define LNTPFLGS_LABELTEXT 0x4000 48#define LNTPFLGS_DATATEXT 0x2000 49#define LNTPFLGS_ENDTEXT 0x1000 50#define LNTPFLGS_PROMPTTEXT 0x0800 51 52typedef unsigned int sclp_cmdw_t; 53 54#define SCLP_CMDW_READ_EVENT_DATA 0x00770005 55#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005 56#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005 57 58#define GDS_ID_MDSMU 0x1310 59#define GDS_ID_MDSROUTEINFO 0x1311 60#define GDS_ID_AGUNWRKCORR 0x1549 61#define GDS_ID_SNACONDREPORT 0x1532 62#define GDS_ID_CPMSU 0x1212 63#define GDS_ID_ROUTTARGINSTR 0x154D 64#define GDS_ID_OPREQ 0x8070 65#define GDS_ID_TEXTCMD 0x1320 66 67#define GDS_KEY_SELFDEFTEXTMSG 0x31 68 69enum sclp_pm_event { 70 SCLP_PM_EVENT_FREEZE, 71 SCLP_PM_EVENT_THAW, 72 SCLP_PM_EVENT_RESTORE, 73}; 74 75#define SCLP_PANIC_PRIO 1 76#define SCLP_PANIC_PRIO_CLIENT 0 77 78typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */ 79 80struct sccb_header { 81 u16 length; 82 u8 function_code; 83 u8 control_mask[3]; 84 u16 response_code; 85} __attribute__((packed)); 86 87extern u64 sclp_facilities; 88 89#define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL) 90#define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) 91#define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) 92#define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL) 93 94struct gds_subvector { 95 u8 length; 96 u8 key; 97} __attribute__((packed)); 98 99struct gds_vector { 100 u16 length; 101 u16 gds_id; 102} __attribute__((packed)); 103 104struct evbuf_header { 105 u16 length; 106 u8 type; 107 u8 flags; 108 u16 _reserved; 109} __attribute__((packed)); 110 111struct sclp_req { 112 struct list_head list; /* list_head for request queueing. */ 113 sclp_cmdw_t command; /* sclp command to execute */ 114 void *sccb; /* pointer to the sccb to execute */ 115 char status; /* status of this request */ 116 int start_count; /* number of SVCs done for this req */ 117 /* Callback that is called after reaching final status. */ 118 void (*callback)(struct sclp_req *, void *data); 119 void *callback_data; 120}; 121 122#define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */ 123#define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */ 124#define SCLP_REQ_RUNNING 0x02 /* request is currently running */ 125#define SCLP_REQ_DONE 0x03 /* request is completed successfully */ 126#define SCLP_REQ_FAILED 0x05 /* request is finally failed */ 127 128/* function pointers that a high level driver has to use for registration */ 129/* of some routines it wants to be called from the low level driver */ 130struct sclp_register { 131 struct list_head list; 132 /* User wants to receive: */ 133 sccb_mask_t receive_mask; 134 /* User wants to send: */ 135 sccb_mask_t send_mask; 136 /* H/W can receive: */ 137 sccb_mask_t sclp_receive_mask; 138 /* H/W can send: */ 139 sccb_mask_t sclp_send_mask; 140 /* called if event type availability changes */ 141 void (*state_change_fn)(struct sclp_register *); 142 /* called for events in cp_receive_mask/sclp_receive_mask */ 143 void (*receiver_fn)(struct evbuf_header *); 144 /* called for power management events */ 145 void (*pm_event_fn)(struct sclp_register *, enum sclp_pm_event); 146 /* pm event posted flag */ 147 int pm_event_posted; 148}; 149 150/* externals from sclp.c */ 151int sclp_add_request(struct sclp_req *req); 152void sclp_sync_wait(void); 153int sclp_register(struct sclp_register *reg); 154void sclp_unregister(struct sclp_register *reg); 155int sclp_remove_processed(struct sccb_header *sccb); 156int sclp_deactivate(void); 157int sclp_reactivate(void); 158int sclp_service_call(sclp_cmdw_t command, void *sccb); 159 160int sclp_sdias_init(void); 161void sclp_sdias_exit(void); 162 163/* useful inlines */ 164 165/* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */ 166/* translate single character from ASCII to EBCDIC */ 167static inline unsigned char 168sclp_ascebc(unsigned char ch) 169{ 170 return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch]; 171} 172 173/* translate string from EBCDIC to ASCII */ 174static inline void 175sclp_ebcasc_str(unsigned char *str, int nr) 176{ 177 (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr); 178} 179 180/* translate string from ASCII to EBCDIC */ 181static inline void 182sclp_ascebc_str(unsigned char *str, int nr) 183{ 184 (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr); 185} 186 187#endif /* __SCLP_H__ */ 188