Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright IBM Corp. 1999,2012
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Author(s): Martin Peschke <mpeschke@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #ifndef __SCLP_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #define __SCLP_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <asm/sclp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <asm/ebcdic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /* maximum number of pages concerning our own memory management */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #define MAX_KMEM_PAGES (sizeof(unsigned long) << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define SCLP_CONSOLE_PAGES	6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define SCLP_EVTYP_MASK(T) (1UL << (sizeof(sccb_mask_t) * BITS_PER_BYTE - (T)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define EVTYP_OPCMD		0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define EVTYP_MSG		0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define EVTYP_CONFMGMDATA	0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define EVTYP_DIAG_TEST		0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define EVTYP_STATECHANGE	0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define EVTYP_PMSGCMD		0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define EVTYP_ASYNC		0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define EVTYP_CTLPROGIDENT	0x0B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define EVTYP_STORE_DATA	0x0C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define EVTYP_ERRNOTIFY		0x18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define EVTYP_VT220MSG		0x1A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define EVTYP_SDIAS		0x1C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define EVTYP_SIGQUIESCE	0x1D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define EVTYP_OCF		0x1E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define EVTYP_OPCMD_MASK	SCLP_EVTYP_MASK(EVTYP_OPCMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define EVTYP_MSG_MASK		SCLP_EVTYP_MASK(EVTYP_MSG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define EVTYP_CONFMGMDATA_MASK	SCLP_EVTYP_MASK(EVTYP_CONFMGMDATA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define EVTYP_DIAG_TEST_MASK	SCLP_EVTYP_MASK(EVTYP_DIAG_TEST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define EVTYP_STATECHANGE_MASK	SCLP_EVTYP_MASK(EVTYP_STATECHANGE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define EVTYP_PMSGCMD_MASK	SCLP_EVTYP_MASK(EVTYP_PMSGCMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define EVTYP_ASYNC_MASK	SCLP_EVTYP_MASK(EVTYP_ASYNC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define EVTYP_CTLPROGIDENT_MASK	SCLP_EVTYP_MASK(EVTYP_CTLPROGIDENT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define EVTYP_STORE_DATA_MASK	SCLP_EVTYP_MASK(EVTYP_STORE_DATA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define EVTYP_ERRNOTIFY_MASK	SCLP_EVTYP_MASK(EVTYP_ERRNOTIFY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define EVTYP_VT220MSG_MASK	SCLP_EVTYP_MASK(EVTYP_VT220MSG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define EVTYP_SDIAS_MASK	SCLP_EVTYP_MASK(EVTYP_SDIAS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define EVTYP_SIGQUIESCE_MASK	SCLP_EVTYP_MASK(EVTYP_SIGQUIESCE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define EVTYP_OCF_MASK		SCLP_EVTYP_MASK(EVTYP_OCF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) #define GNRLMSGFLGS_DOM		0x8000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) #define GNRLMSGFLGS_SNDALRM	0x4000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define GNRLMSGFLGS_HOLDMSG	0x2000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define LNTPFLGS_CNTLTEXT	0x8000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) #define LNTPFLGS_LABELTEXT	0x4000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) #define LNTPFLGS_DATATEXT	0x2000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) #define LNTPFLGS_ENDTEXT	0x1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) #define LNTPFLGS_PROMPTTEXT	0x0800
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) typedef unsigned int sclp_cmdw_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) #define SCLP_CMDW_READ_CPU_INFO		0x00010001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) #define SCLP_CMDW_READ_SCP_INFO		0x00020001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) #define SCLP_CMDW_READ_STORAGE_INFO	0x00040001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) #define SCLP_CMDW_READ_EVENT_DATA	0x00770005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #define SCLP_CMDW_WRITE_EVENT_DATA	0x00760005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) #define SCLP_CMDW_WRITE_EVENT_MASK	0x00780005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) #define GDS_ID_MDSMU		0x1310
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) #define GDS_ID_MDSROUTEINFO	0x1311
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) #define GDS_ID_AGUNWRKCORR	0x1549
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) #define GDS_ID_SNACONDREPORT	0x1532
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define GDS_ID_CPMSU		0x1212
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define GDS_ID_ROUTTARGINSTR	0x154D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define GDS_ID_OPREQ		0x8070
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) #define GDS_ID_TEXTCMD		0x1320
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #define GDS_KEY_SELFDEFTEXTMSG	0x31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) enum sclp_pm_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	SCLP_PM_EVENT_FREEZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	SCLP_PM_EVENT_THAW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	SCLP_PM_EVENT_RESTORE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #define SCLP_PANIC_PRIO		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #define SCLP_PANIC_PRIO_CLIENT	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) typedef u64 sccb_mask_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) struct sccb_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	u16	length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	u8	function_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	u8	control_mask[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	u16	response_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) } __attribute__((packed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct init_sccb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct sccb_header header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	u16 _reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	u16 mask_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	u8 masks[4 * 1021];	/* variable length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	 * u8 receive_mask[mask_length];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	 * u8 send_mask[mask_length];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	 * u8 sclp_receive_mask[mask_length];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	 * u8 sclp_send_mask[mask_length];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) } __attribute__((packed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define SCLP_MASK_SIZE_COMPAT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static inline sccb_mask_t sccb_get_mask(u8 *masks, size_t len, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	sccb_mask_t res = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	memcpy(&res, masks + i * len, min(sizeof(res), len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static inline void sccb_set_mask(u8 *masks, size_t len, int i, sccb_mask_t val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	memset(masks + i * len, 0, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	memcpy(masks + i * len, &val, min(sizeof(val), len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define sccb_get_generic_mask(sccb, i)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ({									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	__typeof__(sccb) __sccb = sccb;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	sccb_get_mask(__sccb->masks, __sccb->mask_length, i);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #define sccb_get_recv_mask(sccb)	sccb_get_generic_mask(sccb, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #define sccb_get_send_mask(sccb)	sccb_get_generic_mask(sccb, 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define sccb_get_sclp_recv_mask(sccb)	sccb_get_generic_mask(sccb, 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #define sccb_get_sclp_send_mask(sccb)	sccb_get_generic_mask(sccb, 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define sccb_set_generic_mask(sccb, i, val)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) ({									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	__typeof__(sccb) __sccb = sccb;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	sccb_set_mask(__sccb->masks, __sccb->mask_length, i, val);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define sccb_set_recv_mask(sccb, val)	    sccb_set_generic_mask(sccb, 0, val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define sccb_set_send_mask(sccb, val)	    sccb_set_generic_mask(sccb, 1, val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define sccb_set_sclp_recv_mask(sccb, val)  sccb_set_generic_mask(sccb, 2, val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define sccb_set_sclp_send_mask(sccb, val)  sccb_set_generic_mask(sccb, 3, val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct read_cpu_info_sccb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	struct	sccb_header header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	u16	nr_configured;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	u16	offset_configured;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	u16	nr_standby;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	u16	offset_standby;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	u8	reserved[4096 - 16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) } __attribute__((packed, aligned(PAGE_SIZE)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct read_info_sccb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	struct	sccb_header header;	/* 0-7 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	u16	rnmax;			/* 8-9 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	u8	rnsize;			/* 10 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	u8	_pad_11[16 - 11];	/* 11-15 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	u16	ncpurl;			/* 16-17 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	u16	cpuoff;			/* 18-19 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	u8	_pad_20[24 - 20];	/* 20-23 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	u8	loadparm[8];		/* 24-31 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	u8	_pad_32[42 - 32];	/* 32-41 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	u8	fac42;			/* 42 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	u8	fac43;			/* 43 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	u8	_pad_44[48 - 44];	/* 44-47 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	u64	facilities;		/* 48-55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	u8	_pad_56[66 - 56];	/* 56-65 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	u8	fac66;			/* 66 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	u8	_pad_67[76 - 67];	/* 67-83 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	u32	ibc;			/* 76-79 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	u8	_pad80[84 - 80];	/* 80-83 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	u8	fac84;			/* 84 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	u8	fac85;			/* 85 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	u8	_pad_86[91 - 86];	/* 86-90 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	u8	fac91;			/* 91 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	u8	_pad_92[98 - 92];	/* 92-97 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	u8	fac98;			/* 98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	u8	hamaxpow;		/* 99 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	u32	rnsize2;		/* 100-103 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	u64	rnmax2;			/* 104-111 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	u32	hsa_size;		/* 112-115 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	u8	fac116;			/* 116 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	u8	fac117;			/* 117 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	u8	fac118;			/* 118 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	u8	fac119;			/* 119 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	u16	hcpua;			/* 120-121 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	u8	_pad_122[124 - 122];	/* 122-123 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	u32	hmfai;			/* 124-127 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	u8	_pad_128[134 - 128];	/* 128-133 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	u8	byte_134;			/* 134 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	u8	cpudirq;		/* 135 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	u16	cbl;			/* 136-137 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	u8	_pad_138[4096 - 138];	/* 138-4095 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) } __packed __aligned(PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct read_storage_sccb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	struct sccb_header header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	u16 max_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	u16 assigned;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	u16 standby;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	u16 :16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	u32 entries[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static inline void sclp_fill_core_info(struct sclp_core_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 				       struct read_cpu_info_sccb *sccb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	char *page = (char *) sccb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	memset(info, 0, sizeof(*info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	info->configured = sccb->nr_configured;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	info->standby = sccb->nr_standby;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	info->combined = sccb->nr_configured + sccb->nr_standby;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	memcpy(&info->core, page + sccb->offset_configured,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	       info->combined * sizeof(struct sclp_core_entry));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #define SCLP_HAS_CHP_INFO	(sclp.facilities & 0x8000000000000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #define SCLP_HAS_CHP_RECONFIG	(sclp.facilities & 0x2000000000000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #define SCLP_HAS_CPU_INFO	(sclp.facilities & 0x0800000000000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #define SCLP_HAS_CPU_RECONFIG	(sclp.facilities & 0x0400000000000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #define SCLP_HAS_PCI_RECONFIG	(sclp.facilities & 0x0000000040000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) #define SCLP_HAS_AP_RECONFIG	(sclp.facilities & 0x0000000100000000ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct gds_subvector {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	u8	length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	u8	key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) } __attribute__((packed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct gds_vector {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	u16	length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	u16	gds_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) } __attribute__((packed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct evbuf_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	u16	length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	u8	type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	u8	flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	u16	_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) } __attribute__((packed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct sclp_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	struct list_head list;		/* list_head for request queueing. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	sclp_cmdw_t command;		/* sclp command to execute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	void	*sccb;			/* pointer to the sccb to execute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	char	status;			/* status of this request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	int     start_count;		/* number of SVCs done for this req */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	/* Callback that is called after reaching final status. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	void (*callback)(struct sclp_req *, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	void *callback_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	int queue_timeout;		/* request queue timeout (sec), set by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 					   caller of sclp_add_request(), if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 					   needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	/* Internal fields */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	unsigned long queue_expires;	/* request queue timeout (jiffies) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) #define SCLP_REQ_FILLED	  0x00	/* request is ready to be processed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) #define SCLP_REQ_QUEUED	  0x01	/* request is queued to be processed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) #define SCLP_REQ_RUNNING  0x02	/* request is currently running */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #define SCLP_REQ_DONE	  0x03	/* request is completed successfully */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) #define SCLP_REQ_FAILED	  0x05	/* request is finally failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) #define SCLP_REQ_QUEUED_TIMEOUT 0x06	/* request on queue timed out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) #define SCLP_QUEUE_INTERVAL 5	/* timeout interval for request queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* function pointers that a high level driver has to use for registration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /* of some routines it wants to be called from the low level driver */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) struct sclp_register {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	/* User wants to receive: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	sccb_mask_t receive_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	/* User wants to send: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	sccb_mask_t send_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	/* H/W can receive: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	sccb_mask_t sclp_receive_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	/* H/W can send: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	sccb_mask_t sclp_send_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	/* called if event type availability changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	void (*state_change_fn)(struct sclp_register *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	/* called for events in cp_receive_mask/sclp_receive_mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	void (*receiver_fn)(struct evbuf_header *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	/* called for power management events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	void (*pm_event_fn)(struct sclp_register *, enum sclp_pm_event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	/* pm event posted flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	int pm_event_posted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /* externals from sclp.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int sclp_add_request(struct sclp_req *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) void sclp_sync_wait(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) int sclp_register(struct sclp_register *reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) void sclp_unregister(struct sclp_register *reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) int sclp_remove_processed(struct sccb_header *sccb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) int sclp_deactivate(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) int sclp_reactivate(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int sclp_sync_request(sclp_cmdw_t command, void *sccb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) int sclp_sync_request_timeout(sclp_cmdw_t command, void *sccb, int timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) int sclp_sdias_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	sclp_init_state_uninitialized,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	sclp_init_state_initializing,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	sclp_init_state_initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) extern int sclp_init_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) extern int sclp_console_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) extern int sclp_console_drop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) extern unsigned long sclp_console_full;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) extern bool sclp_mask_compat_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) extern char *sclp_early_sccb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) void sclp_early_wait_irq(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int sclp_early_cmd(sclp_cmdw_t cmd, void *sccb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) unsigned int sclp_early_con_check_linemode(struct init_sccb *sccb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) unsigned int sclp_early_con_check_vt220(struct init_sccb *sccb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) int sclp_early_set_event_mask(struct init_sccb *sccb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 			      sccb_mask_t receive_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 			      sccb_mask_t send_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) int sclp_early_get_info(struct read_info_sccb *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* useful inlines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /* Perform service call. Return 0 on success, non-zero otherwise. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) static inline int sclp_service_call(sclp_cmdw_t command, void *sccb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	int cc = 4; /* Initialize for program check handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		"0:	.insn	rre,0xb2200000,%1,%2\n"	 /* servc %1,%2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		"1:	ipm	%0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		"	srl	%0,28\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		"2:\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		EX_TABLE(0b, 2b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		EX_TABLE(1b, 2b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		: "+&d" (cc) : "d" (command), "a" ((unsigned long)sccb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		: "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	if (cc == 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	if (cc == 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	if (cc == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) /* translate single character from ASCII to EBCDIC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static inline unsigned char
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) sclp_ascebc(unsigned char ch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) /* translate string from EBCDIC to ASCII */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) sclp_ebcasc_str(char *str, int nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	(MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /* translate string from ASCII to EBCDIC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) sclp_ascebc_str(char *str, int nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	(MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) static inline struct gds_vector *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) sclp_find_gds_vector(void *start, void *end, u16 id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	struct gds_vector *v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	for (v = start; (void *) v < end; v = (void *) v + v->length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		if (v->gds_id == id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 			return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) static inline struct gds_subvector *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) sclp_find_gds_subvector(void *start, void *end, u8 key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	struct gds_subvector *sv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	for (sv = start; (void *) sv < end; sv = (void *) sv + sv->length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		if (sv->key == key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 			return sv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) #endif	 /* __SCLP_H__ */