Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #ifndef _POWERPC_RTAS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #define _POWERPC_RTAS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #ifdef __KERNEL__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <asm/rtas-types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/cpumask.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * Definitions for talking to the RTAS on CHRP machines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * Copyright (C) 2001 Peter Bergner
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * Copyright (C) 2001 PPC 64 Team, IBM Corp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define RTAS_UNKNOWN_SERVICE (-1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) /* Buffer size for ppc_rtas system call. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define RTAS_RMOBUF_MAX (64 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) /* RTAS return status codes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define RTAS_NOT_SUSPENDABLE	-9004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define RTAS_BUSY		-2    /* RTAS Busy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define RTAS_EXTENDED_DELAY_MIN	9900
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define RTAS_EXTENDED_DELAY_MAX	9905
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * In general to call RTAS use rtas_token("string") to lookup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * an RTAS token for the given string (e.g. "event-scan").
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * To actually perform the call use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  *    ret = rtas_call(token, n_in, n_out, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * Where n_in is the number of input parameters and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  *       n_out is the number of output parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  * If the "string" is invalid on this system, RTAS_UNKNOWN_SERVICE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * will be returned as a token.  rtas_call() does look for this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  * token and error out gracefully so rtas_call(rtas_token("str"), ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  * may be safely used for one-shot calls to RTAS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) /* RTAS event classes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define RTAS_INTERNAL_ERROR		0x80000000 /* set bit 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define RTAS_EPOW_WARNING		0x40000000 /* set bit 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define RTAS_HOTPLUG_EVENTS		0x10000000 /* set bit 3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define RTAS_IO_EVENTS			0x08000000 /* set bit 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define RTAS_EVENT_SCAN_ALL_EVENTS	0xffffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) /* RTAS event severity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) #define RTAS_SEVERITY_FATAL		0x5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define RTAS_SEVERITY_ERROR		0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define RTAS_SEVERITY_ERROR_SYNC	0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define RTAS_SEVERITY_WARNING		0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) #define RTAS_SEVERITY_EVENT		0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) #define RTAS_SEVERITY_NO_ERROR		0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) /* RTAS event disposition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #define RTAS_DISP_FULLY_RECOVERED	0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) #define RTAS_DISP_LIMITED_RECOVERY	0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) #define RTAS_DISP_NOT_RECOVERED		0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) /* RTAS event initiator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) #define RTAS_INITIATOR_UNKNOWN		0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #define RTAS_INITIATOR_CPU		0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) #define RTAS_INITIATOR_PCI		0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #define RTAS_INITIATOR_ISA		0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) #define RTAS_INITIATOR_MEMORY		0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) #define RTAS_INITIATOR_POWERMGM		0x5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) /* RTAS event target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) #define RTAS_TARGET_UNKNOWN		0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) #define RTAS_TARGET_CPU			0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define RTAS_TARGET_PCI			0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define RTAS_TARGET_ISA			0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define RTAS_TARGET_MEMORY		0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) #define RTAS_TARGET_POWERMGM		0x5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) /* RTAS event type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #define RTAS_TYPE_RETRY			0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) #define RTAS_TYPE_TCE_ERR		0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) #define RTAS_TYPE_INTERN_DEV_FAIL	0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) #define RTAS_TYPE_TIMEOUT		0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) #define RTAS_TYPE_DATA_PARITY		0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) #define RTAS_TYPE_ADDR_PARITY		0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) #define RTAS_TYPE_CACHE_PARITY		0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #define RTAS_TYPE_ADDR_INVALID		0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #define RTAS_TYPE_ECC_UNCORR		0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #define RTAS_TYPE_ECC_CORR		0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) #define RTAS_TYPE_EPOW			0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) #define RTAS_TYPE_PLATFORM		0xE0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) #define RTAS_TYPE_IO			0xE1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) #define RTAS_TYPE_INFO			0xE2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #define RTAS_TYPE_DEALLOC		0xE3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) #define RTAS_TYPE_DUMP			0xE4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) #define RTAS_TYPE_HOTPLUG		0xE5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* I don't add PowerMGM events right now, this is a different topic */ 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #define RTAS_TYPE_PMGM_POWER_SW_ON	0x60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define RTAS_TYPE_PMGM_POWER_SW_OFF	0x61
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define RTAS_TYPE_PMGM_LID_OPEN		0x62
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define RTAS_TYPE_PMGM_LID_CLOSE	0x63
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define RTAS_TYPE_PMGM_SLEEP_BTN	0x64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define RTAS_TYPE_PMGM_WAKE_BTN		0x65
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define RTAS_TYPE_PMGM_BATTERY_WARN	0x66
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define RTAS_TYPE_PMGM_BATTERY_CRIT	0x67
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define RTAS_TYPE_PMGM_SWITCH_TO_BAT	0x68
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define RTAS_TYPE_PMGM_SWITCH_TO_AC	0x69
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define RTAS_TYPE_PMGM_KBD_OR_MOUSE	0x6a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define RTAS_TYPE_PMGM_ENCLOS_OPEN	0x6b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define RTAS_TYPE_PMGM_ENCLOS_CLOSED	0x6c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define RTAS_TYPE_PMGM_RING_INDICATE	0x6d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define RTAS_TYPE_PMGM_LAN_ATTENTION	0x6e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define RTAS_TYPE_PMGM_TIME_ALARM	0x6f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define RTAS_TYPE_PMGM_CONFIG_CHANGE	0x70
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define RTAS_TYPE_PMGM_SERVICE_PROC	0x71
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /* Platform Resource Reassignment Notification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define RTAS_TYPE_PRRN			0xA0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* RTAS check-exception vector offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define RTAS_VECTOR_EXTERNAL_INTERRUPT	0x500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return (elog->byte1 & 0xE0) >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	return (elog->byte1 & 0x18) >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) void rtas_set_disposition_recovered(struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	elog->byte1 &= ~0x18;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	return (elog->byte1 & 0x04) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	return (elog->byte2 & 0xf0) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define rtas_error_type(x)	((x)->byte3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	return be32_to_cpu(elog->extended_log_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG	14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define RTAS_V6EXT_COMPANY_ID_IBM	(('I' << 24) | ('B' << 16) | ('M' << 8))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	return ext_log->byte2 & 0x0F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	return be32_to_cpu(ext_log->company_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* pSeries event log format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* Two bytes ASCII section IDs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #define PSERIES_ELOG_SECT_ID_PRIV_HDR		(('P' << 8) | 'H')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define PSERIES_ELOG_SECT_ID_USER_HDR		(('U' << 8) | 'H')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #define PSERIES_ELOG_SECT_ID_PRIMARY_SRC	(('P' << 8) | 'S')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define PSERIES_ELOG_SECT_ID_EXTENDED_UH	(('E' << 8) | 'H')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) #define PSERIES_ELOG_SECT_ID_FAILING_MTMS	(('M' << 8) | 'T')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) #define PSERIES_ELOG_SECT_ID_SECONDARY_SRC	(('S' << 8) | 'S')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR	(('D' << 8) | 'H')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #define PSERIES_ELOG_SECT_ID_FW_ERROR		(('S' << 8) | 'W')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID	(('L' << 8) | 'P')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID	(('L' << 8) | 'R')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) #define PSERIES_ELOG_SECT_ID_HMC_ID		(('H' << 8) | 'M')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #define PSERIES_ELOG_SECT_ID_EPOW		(('E' << 8) | 'P')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define PSERIES_ELOG_SECT_ID_IO_EVENT		(('I' << 8) | 'E')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #define PSERIES_ELOG_SECT_ID_MANUFACT_INFO	(('M' << 8) | 'I')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) #define PSERIES_ELOG_SECT_ID_CALL_HOME		(('C' << 8) | 'H')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define PSERIES_ELOG_SECT_ID_USER_DEF		(('U' << 8) | 'D')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) #define PSERIES_ELOG_SECT_ID_HOTPLUG		(('H' << 8) | 'P')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) #define PSERIES_ELOG_SECT_ID_MCE		(('M' << 8) | 'C')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	return be16_to_cpu(sect->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	return be16_to_cpu(sect->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) #define PSERIES_HP_ELOG_RESOURCE_CPU	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #define PSERIES_HP_ELOG_RESOURCE_MEM	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #define PSERIES_HP_ELOG_RESOURCE_SLOT	3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #define PSERIES_HP_ELOG_RESOURCE_PHB	4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #define PSERIES_HP_ELOG_RESOURCE_PMEM   6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #define PSERIES_HP_ELOG_ACTION_ADD	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define PSERIES_HP_ELOG_ACTION_REMOVE	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define PSERIES_HP_ELOG_ID_DRC_NAME	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #define PSERIES_HP_ELOG_ID_DRC_INDEX	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) #define PSERIES_HP_ELOG_ID_DRC_COUNT	3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define PSERIES_HP_ELOG_ID_DRC_IC	4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 					      uint16_t section_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)  * This can be set by the rtas_flash module so that it can get called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)  * as the absolutely last thing before the kernel terminates.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) extern void (*rtas_flash_term_hook)(int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) extern struct rtas_t rtas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) extern int rtas_token(const char *service);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) extern int rtas_service_present(const char *service);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) extern int rtas_call(int token, int, int, int *, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) int rtas_call_reentrant(int token, int nargs, int nret, int *outputs, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 			int nret, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) extern void __noreturn rtas_restart(char *cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) extern void rtas_power_off(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) extern void __noreturn rtas_halt(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) extern void rtas_os_term(char *str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) extern int rtas_get_sensor(int sensor, int index, int *state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) extern int rtas_get_sensor_fast(int sensor, int index, int *state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) extern int rtas_get_power_level(int powerdomain, int *level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) extern bool rtas_indicator_present(int token, int *maxindex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) extern int rtas_set_indicator(int indicator, int index, int new_value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) extern void rtas_progress(char *s, unsigned short hex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) extern int rtas_suspend_cpu(struct rtas_suspend_me_data *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) extern int rtas_ibm_suspend_me(u64 handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct rtc_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) extern time64_t rtas_get_boot_time(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) extern unsigned int rtas_busy_delay_time(int status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) extern unsigned int rtas_busy_delay(int status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) extern int early_init_dt_scan_rtas(unsigned long node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		const char *uname, int depth, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #ifdef CONFIG_PPC_PSERIES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) extern time64_t last_rtas_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) extern int clobbering_unread_rtas_event(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) extern int pseries_devicetree_update(s32 scope);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) extern void post_mobility_fixup(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static inline int clobbering_unread_rtas_event(void) { return 0; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #ifdef CONFIG_PPC_RTAS_DAEMON
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) extern void rtas_cancel_event_scan(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static inline void rtas_cancel_event_scan(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /* Error types logged.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #define ERR_FLAG_ALREADY_LOGGED	0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #define ERR_FLAG_BOOT		0x1 	/* log was pulled from NVRAM on boot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define ERR_TYPE_RTAS_LOG	0x2	/* from rtas event-scan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) #define ERR_TYPE_KERNEL_PANIC	0x4	/* from die()/panic() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #define ERR_TYPE_KERNEL_PANIC_GZ 0x8	/* ditto, compressed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) /* All the types and not flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) #define ERR_TYPE_MASK \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	(ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) #define RTAS_DEBUG KERN_DEBUG "RTAS: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)  
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) #define RTAS_ERROR_LOG_MAX 2048
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)  * Return the firmware-specified size of the error log buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)  *  for all rtas calls that require an error buffer argument.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)  *  This includes 'check-exception' and 'rtas-last-error'.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) extern int rtas_get_error_log_max(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* Event Scan Parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) #define EVENT_SCAN_ALL_EVENTS	0xf0000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) #define SURVEILLANCE_TOKEN	9000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) #define LOG_NUMBER		64		/* must be a power of two */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) #define LOG_NUMBER_MASK		(LOG_NUMBER-1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* Some RTAS ops require a data buffer and that buffer must be < 4G.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)  * Rather than having a memory allocator, just use this buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)  * (get the lock first), make the RTAS call.  Copy the data instead
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)  * of holding the buffer for long.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) #define RTAS_DATA_BUF_SIZE 4096
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) extern spinlock_t rtas_data_buf_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /* RMO buffer reserved for user-space RTAS use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) extern unsigned long rtas_rmo_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) #define GLOBAL_INTERRUPT_QUEUE 9005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)  * rtas_config_addr - Format a busno, devfn and reg for RTAS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)  * @busno: The bus number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)  * @devfn: The device and function number as encoded by PCI_DEVFN().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)  * @reg: The register number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)  * This function encodes the given busno, devfn and register number as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)  * required for RTAS calls that take a "config_addr" parameter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)  * See PAPR requirement 7.3.4-1 for more info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) static inline u32 rtas_config_addr(int busno, int devfn, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 			(devfn << 8) | (reg & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) extern void rtas_give_timebase(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) extern void rtas_take_timebase(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) #ifdef CONFIG_PPC_RTAS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static inline int page_is_rtas_user_buf(unsigned long pfn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	unsigned long paddr = (pfn << PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_RMOBUF_MAX))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) /* Not the best place to put pSeries_coalesce_init, will be fixed when we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)  * move some of the rtas suspend-me stuff to pseries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) extern void pSeries_coalesce_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) void rtas_initialize(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static inline void pSeries_coalesce_init(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static inline void rtas_initialize(void) { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) extern int call_rtas(const char *, int, int, unsigned long *, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) #ifdef CONFIG_HV_PERF_CTRS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) void read_24x7_sys_info(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static inline void read_24x7_sys_info(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) #endif /* __KERNEL__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) #endif /* _POWERPC_RTAS_H */