1/* 2 * obio.h: Some useful locations in 0xFXXXXXXXX PA obio space on sun4d. 3 * 4 * Copyright (C) 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz> 5 */ 6 7#ifndef _SPARC_OBIO_H 8#define _SPARC_OBIO_H 9 10#include <asm/asi.h> 11 12/* This weird monster likes to use the very upper parts of 13 36bit PA for these things :) */ 14 15/* CSR space (for each XDBUS) 16 * ------------------------------------------------------------------------ 17 * | 0xFE | DEVID | | XDBUS ID | | 18 * ------------------------------------------------------------------------ 19 * 35 28 27 20 19 10 9 8 7 0 20 */ 21 22#define CSR_BASE_ADDR 0xe0000000 23#define CSR_CPU_SHIFT (32 - 4 - 5) 24#define CSR_XDBUS_SHIFT 8 25 26#define CSR_BASE(cpu) (((CSR_BASE_ADDR >> CSR_CPU_SHIFT) + cpu) << CSR_CPU_SHIFT) 27 28/* ECSR space (not for each XDBUS) 29 * ------------------------------------------------------------------------ 30 * | 0xF | DEVID[7:1] | | 31 * ------------------------------------------------------------------------ 32 * 35 32 31 25 24 0 33 */ 34 35#define ECSR_BASE_ADDR 0x00000000 36#define ECSR_CPU_SHIFT (32 - 5) 37#define ECSR_DEV_SHIFT (32 - 8) 38 39#define ECSR_BASE(cpu) ((cpu) << ECSR_CPU_SHIFT) 40#define ECSR_DEV_BASE(devid) ((devid) << ECSR_DEV_SHIFT) 41 42/* Bus Watcher */ 43#define BW_LOCAL_BASE 0xfff00000 44 45#define BW_CID 0x00000000 46#define BW_DBUS_CTRL 0x00000008 47#define BW_DBUS_DATA 0x00000010 48#define BW_CTRL 0x00001000 49#define BW_INTR_TABLE 0x00001040 50#define BW_INTR_TABLE_CLEAR 0x00001080 51#define BW_PRESCALER 0x000010c0 52#define BW_PTIMER_LIMIT 0x00002000 53#define BW_PTIMER_COUNTER2 0x00002004 54#define BW_PTIMER_NDLIMIT 0x00002008 55#define BW_PTIMER_CTRL 0x0000200c 56#define BW_PTIMER_COUNTER 0x00002010 57#define BW_TIMER_LIMIT 0x00003000 58#define BW_TIMER_COUNTER2 0x00003004 59#define BW_TIMER_NDLIMIT 0x00003008 60#define BW_TIMER_CTRL 0x0000300c 61#define BW_TIMER_COUNTER 0x00003010 62 63/* BW Control */ 64#define BW_CTRL_USER_TIMER 0x00000004 /* Is User Timer Free run enabled */ 65 66/* Boot Bus */ 67#define BB_LOCAL_BASE 0xf0000000 68 69#define BB_STAT1 0x00100000 70#define BB_STAT2 0x00120000 71#define BB_STAT3 0x00140000 72#define BB_LEDS 0x002e0000 73 74/* Bits in BB_STAT2 */ 75#define BB_STAT2_AC_INTR 0x04 /* Aiee! 5ms and power is gone... */ 76#define BB_STAT2_TMP_INTR 0x10 /* My Penguins are burning. Are you able to smell it? */ 77#define BB_STAT2_FAN_INTR 0x20 /* My fan refuses to work */ 78#define BB_STAT2_PWR_INTR 0x40 /* On SC2000, one of the two ACs died. Ok, we go on... */ 79#define BB_STAT2_MASK (BB_STAT2_AC_INTR|BB_STAT2_TMP_INTR|BB_STAT2_FAN_INTR|BB_STAT2_PWR_INTR) 80 81/* Cache Controller */ 82#define CC_BASE 0x1F00000 83#define CC_DATSTREAM 0x1F00000 /* Data stream register */ 84#define CC_DATSIZE 0x1F0003F /* Size */ 85#define CC_SRCSTREAM 0x1F00100 /* Source stream register */ 86#define CC_DESSTREAM 0x1F00200 /* Destination stream register */ 87#define CC_RMCOUNT 0x1F00300 /* Count of references and misses */ 88#define CC_IPEN 0x1F00406 /* Pending Interrupts */ 89#define CC_IMSK 0x1F00506 /* Interrupt Mask */ 90#define CC_ICLR 0x1F00606 /* Clear pending Interrupts */ 91#define CC_IGEN 0x1F00704 /* Generate Interrupt register */ 92#define CC_STEST 0x1F00804 /* Internal self-test */ 93#define CC_CREG 0x1F00A04 /* Control register */ 94#define CC_SREG 0x1F00B00 /* Status register */ 95#define CC_RREG 0x1F00C04 /* Reset register */ 96#define CC_EREG 0x1F00E00 /* Error code register */ 97#define CC_CID 0x1F00F04 /* Component ID */ 98 99#ifndef __ASSEMBLY__ 100 101static inline int bw_get_intr_mask(int sbus_level) 102{ 103 int mask; 104 105 __asm__ __volatile__ ("lduha [%1] %2, %0" : 106 "=r" (mask) : 107 "r" (BW_LOCAL_BASE + BW_INTR_TABLE + (sbus_level << 3)), 108 "i" (ASI_M_CTL)); 109 return mask; 110} 111 112static inline void bw_clear_intr_mask(int sbus_level, int mask) 113{ 114 __asm__ __volatile__ ("stha %0, [%1] %2" : : 115 "r" (mask), 116 "r" (BW_LOCAL_BASE + BW_INTR_TABLE_CLEAR + (sbus_level << 3)), 117 "i" (ASI_M_CTL)); 118} 119 120static inline unsigned bw_get_prof_limit(int cpu) 121{ 122 unsigned limit; 123 124 __asm__ __volatile__ ("lda [%1] %2, %0" : 125 "=r" (limit) : 126 "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT), 127 "i" (ASI_M_CTL)); 128 return limit; 129} 130 131static inline void bw_set_prof_limit(int cpu, unsigned limit) 132{ 133 __asm__ __volatile__ ("sta %0, [%1] %2" : : 134 "r" (limit), 135 "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT), 136 "i" (ASI_M_CTL)); 137} 138 139static inline unsigned bw_get_ctrl(int cpu) 140{ 141 unsigned ctrl; 142 143 __asm__ __volatile__ ("lda [%1] %2, %0" : 144 "=r" (ctrl) : 145 "r" (CSR_BASE(cpu) + BW_CTRL), 146 "i" (ASI_M_CTL)); 147 return ctrl; 148} 149 150static inline void bw_set_ctrl(int cpu, unsigned ctrl) 151{ 152 __asm__ __volatile__ ("sta %0, [%1] %2" : : 153 "r" (ctrl), 154 "r" (CSR_BASE(cpu) + BW_CTRL), 155 "i" (ASI_M_CTL)); 156} 157 158static inline unsigned cc_get_ipen(void) 159{ 160 unsigned pending; 161 162 __asm__ __volatile__ ("lduha [%1] %2, %0" : 163 "=r" (pending) : 164 "r" (CC_IPEN), 165 "i" (ASI_M_MXCC)); 166 return pending; 167} 168 169static inline void cc_set_iclr(unsigned clear) 170{ 171 __asm__ __volatile__ ("stha %0, [%1] %2" : : 172 "r" (clear), 173 "r" (CC_ICLR), 174 "i" (ASI_M_MXCC)); 175} 176 177static inline unsigned cc_get_imsk(void) 178{ 179 unsigned mask; 180 181 __asm__ __volatile__ ("lduha [%1] %2, %0" : 182 "=r" (mask) : 183 "r" (CC_IMSK), 184 "i" (ASI_M_MXCC)); 185 return mask; 186} 187 188static inline void cc_set_imsk(unsigned mask) 189{ 190 __asm__ __volatile__ ("stha %0, [%1] %2" : : 191 "r" (mask), 192 "r" (CC_IMSK), 193 "i" (ASI_M_MXCC)); 194} 195 196static inline unsigned cc_get_imsk_other(int cpuid) 197{ 198 unsigned mask; 199 200 __asm__ __volatile__ ("lduha [%1] %2, %0" : 201 "=r" (mask) : 202 "r" (ECSR_BASE(cpuid) | CC_IMSK), 203 "i" (ASI_M_CTL)); 204 return mask; 205} 206 207static inline void cc_set_imsk_other(int cpuid, unsigned mask) 208{ 209 __asm__ __volatile__ ("stha %0, [%1] %2" : : 210 "r" (mask), 211 "r" (ECSR_BASE(cpuid) | CC_IMSK), 212 "i" (ASI_M_CTL)); 213} 214 215static inline void cc_set_igen(unsigned gen) 216{ 217 __asm__ __volatile__ ("sta %0, [%1] %2" : : 218 "r" (gen), 219 "r" (CC_IGEN), 220 "i" (ASI_M_MXCC)); 221} 222 223/* +-------+-------------+-----------+------------------------------------+ 224 * | bcast | devid | sid | levels mask | 225 * +-------+-------------+-----------+------------------------------------+ 226 * 31 30 23 22 15 14 0 227 */ 228#define IGEN_MESSAGE(bcast, devid, sid, levels) \ 229 (((bcast) << 31) | ((devid) << 23) | ((sid) << 15) | (levels)) 230 231static inline void sun4d_send_ipi(int cpu, int level) 232{ 233 cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1))); 234} 235 236#endif /* !__ASSEMBLY__ */ 237 238#endif /* !(_SPARC_OBIO_H) */ 239