11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PAL & SAL emulation. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1998-2001 Hewlett-Packard Co 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * David Mosberger-Tang <davidm@hpl.hp.com> 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# include <linux/pci.h> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/efi.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/pal.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/sal.h> 16c140d87995b68b428f70635c2e4071e4e8b3256eDavid Howells#include <asm/setup.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "ssc.h" 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MB (1024*1024UL) 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SIMPLE_MEMMAP 1 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if SIMPLE_MEMMAP 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define NUM_MEM_DESCS 4 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define NUM_MEM_DESCS 16 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char fw_mem[( sizeof(struct ia64_boot_param) 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + sizeof(efi_system_table_t) 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + sizeof(efi_runtime_services_t) 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + 1*sizeof(efi_config_table_t) 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + sizeof(struct ia64_sal_systab) 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + sizeof(struct ia64_sal_desc_entry_point) 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + NUM_MEM_DESCS*(sizeof(efi_memory_desc_t)) 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + 1024)] __attribute__ ((aligned (8))); 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECS_PER_HOUR (60 * 60) 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECS_PER_DAY (SECS_PER_HOUR * 24) 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Compute the `struct tm' representation of *T, 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset OFFSET seconds east of UTC, 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds and store year, yday, mon, mday, wday, hour, min, sec into *TP. 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Return nonzero if successful. */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsofftime (unsigned long t, efi_time_t *tp) 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned short int __mon_yday[2][13] = 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Normal years. */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Leap years. */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long int days, rem, y; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned short int *ip; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds days = t / SECS_PER_DAY; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rem = t % SECS_PER_DAY; 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (rem < 0) { 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rem += SECS_PER_DAY; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds --days; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (rem >= SECS_PER_DAY) { 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rem -= SECS_PER_DAY; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++days; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->hour = rem / SECS_PER_HOUR; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rem %= SECS_PER_HOUR; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->minute = rem / 60; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->second = rem % 60; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* January 1, 1970 was a Thursday. */ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds y = 1970; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define DIV(a, b) ((a) / (b) - ((a) % (b) < 0)) 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define __isleap(year) \ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (days < 0 || days >= (__isleap (y) ? 366 : 365)) { 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Guess a corrected year, assuming 365 days per year. */ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long int yg = y + days / 365 - (days % 365 < 0); 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Adjust DAYS and Y to match the guessed year. */ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds days -= ((yg - y) * 365 + LEAPS_THRU_END_OF (yg - 1) 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds - LEAPS_THRU_END_OF (y - 1)); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds y = yg; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->year = y; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ip = __mon_yday[__isleap(y)]; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (y = 11; days < (long int) ip[y]; --y) 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds days -= ip[y]; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->month = y + 1; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp->day = days + 1; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void pal_emulator_static (void); 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Macro to emulate SAL call using legacy IN and OUT calls to CF8, CFC etc.. */ 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUILD_CMD(addr) ((0x80000000 | (addr)) & ~3) 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define REG_OFFSET(addr) (0x00000000000000FF & (addr)) 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DEVICE_FUNCTION(addr) (0x000000000000FF00 & (addr)) 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_NUMBER(addr) (0x0000000000FF0000 & (addr)) 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic efi_status_t 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfw_efi_get_time (efi_time_t *tm, efi_time_cap_t *tc) 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC) 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int tv_sec; /* must be 32bits to work */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int tv_usec; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } tv32bits; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssc((unsigned long) &tv32bits, 0, 0, 0, SSC_GET_TOD); 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(tm, 0, sizeof(*tm)); 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offtime(tv32bits.tv_sec, tm); 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tc) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(tc, 0, sizeof(*tc)); 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# error Not implemented yet... 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return EFI_SUCCESS; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsefi_reset_system (int reset_type, efi_status_t status, unsigned long data_size, efi_char16_t *data) 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC) 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssc(status, 0, 0, 0, SSC_EXIT); 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# error Not implemented yet... 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic efi_status_t 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsefi_unimplemented (void) 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return EFI_UNSUPPORTED; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct sal_ret_values 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldssal_emulator (long index, unsigned long in1, unsigned long in2, 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long in3, unsigned long in4, unsigned long in5, 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long in6, unsigned long in7) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long r9 = 0; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long r10 = 0; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long r11 = 0; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long status; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't do a "switch" here since that gives us code that 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * isn't self-relocatable. 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = 0; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (index == SAL_FREQ_BASE) { 1640745d19abc492437e601c83281287d10202ee411Jiri Slaby if (in1 == SAL_FREQ_BASE_PLATFORM) 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = 200000000; 1660745d19abc492437e601c83281287d10202ee411Jiri Slaby else if (in1 == SAL_FREQ_BASE_INTERVAL_TIMER) { 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Is this supposed to be the cr.itc frequency 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or something platform specific? The SAL 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * doc ain't exactly clear on this... 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = 700000000; 1730745d19abc492437e601c83281287d10202ee411Jiri Slaby } else if (in1 == SAL_FREQ_BASE_REALTIME_CLOCK) 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = 1; 1750745d19abc492437e601c83281287d10202ee411Jiri Slaby else 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = -1; 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_SET_VECTORS) { 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_GET_STATE_INFO) { 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_GET_STATE_INFO_SIZE) { 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_CLEAR_STATE_INFO) { 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_MC_RENDEZ) { 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_MC_SET_PARAMS) { 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_CACHE_FLUSH) { 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_CACHE_INIT) { 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_PCI_CONFIG_READ) { 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in1 contains the PCI configuration address and in2 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the size of the read. The value that is read is 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returned via the general register r9. 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(BUILD_CMD(in1), 0xCF8); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (in2 == 1) /* Reading byte */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = inb(0xCFC + ((REG_OFFSET(in1) & 3))); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (in2 == 2) /* Reading word */ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = inw(0xCFC + ((REG_OFFSET(in1) & 2))); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else /* Reading dword */ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds r9 = inl(0xCFC); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = PCIBIOS_SUCCESSFUL; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_PCI_CONFIG_WRITE) { 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in1 contains the PCI configuration address, in2 the 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * size of the write, and in3 the actual value to be 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * written out. 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(BUILD_CMD(in1), 0xCF8); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (in2 == 1) /* Writing byte */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(in3, 0xCFC + ((REG_OFFSET(in1) & 3))); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (in2 == 2) /* Writing word */ 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(in3, 0xCFC + ((REG_OFFSET(in1) & 2))); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else /* Writing dword */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(in3, 0xCFC); 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = PCIBIOS_SUCCESSFUL; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (index == SAL_UPDATE_PAL) { 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = -1; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ((struct sal_ret_values) {status, r9, r10, r11}); 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ia64_boot_param * 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldssys_fw_init (const char *args, int arglen) 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_system_table_t *efi_systab; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime_services_t *efi_runtime; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_config_table_t *efi_tables; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ia64_sal_systab *sal_systab; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_memory_desc_t *efi_memmap, *md; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long *pal_desc, *sal_desc; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ia64_sal_desc_entry_point *sal_ed; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ia64_boot_param *bp; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char checksum = 0; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *cp, *cmd_line; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i = 0; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define MAKE_MD(typ, attr, start, end) \ 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { \ 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md = efi_memmap + i++; \ 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->type = typ; \ 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->pad = 0; \ 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->phys_addr = start; \ 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->virt_addr = 0; \ 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->num_pages = (end - start) >> 12; \ 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds md->attribute = attr; \ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (0) 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(fw_mem, 0, sizeof(fw_mem)); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pal_desc = (unsigned long *) &pal_emulator_static; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_desc = (unsigned long *) &sal_emulator; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cp = fw_mem; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab = (void *) cp; cp += sizeof(*efi_systab); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime = (void *) cp; cp += sizeof(*efi_runtime); 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_tables = (void *) cp; cp += sizeof(*efi_tables); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab = (void *) cp; cp += sizeof(*sal_systab); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_ed = (void *) cp; cp += sizeof(*sal_ed); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_memmap = (void *) cp; cp += NUM_MEM_DESCS*sizeof(*efi_memmap); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp = (void *) cp; cp += sizeof(*bp); 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd_line = (void *) cp; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (args) { 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arglen >= 1024) 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds arglen = 1023; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(cmd_line, args, arglen); 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds arglen = 0; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd_line[arglen] = '\0'; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 280b17de3619553d004be3fe3c58bf6a63cbec3303bRoel Kluin memset(efi_systab, 0, sizeof(*efi_systab)); 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->hdr.signature = EFI_SYSTEM_TABLE_SIGNATURE; 282873ec746158403af82c57ce26780166aafc159e1Bjorn Helgaas efi_systab->hdr.revision = ((1 << 16) | 00); 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->hdr.headersize = sizeof(efi_systab->hdr); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->fw_vendor = __pa("H\0e\0w\0l\0e\0t\0t\0-\0P\0a\0c\0k\0a\0r\0d\0\0"); 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->fw_revision = 1; 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->runtime = (void *) __pa(efi_runtime); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->nr_tables = 1; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_systab->tables = __pa(efi_tables); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->hdr.signature = EFI_RUNTIME_SERVICES_SIGNATURE; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->hdr.revision = EFI_RUNTIME_SERVICES_REVISION; 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->hdr.headersize = sizeof(efi_runtime->hdr); 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->get_time = __pa(&fw_efi_get_time); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->set_time = __pa(&efi_unimplemented); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->get_wakeup_time = __pa(&efi_unimplemented); 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->set_wakeup_time = __pa(&efi_unimplemented); 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->set_virtual_address_map = __pa(&efi_unimplemented); 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->get_variable = __pa(&efi_unimplemented); 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->get_next_variable = __pa(&efi_unimplemented); 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->set_variable = __pa(&efi_unimplemented); 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->get_next_high_mono_count = __pa(&efi_unimplemented); 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_runtime->reset_system = __pa(&efi_reset_system); 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_tables->guid = SAL_SYSTEM_TABLE_GUID; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds efi_tables->table = __pa(sal_systab); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in the SAL system table: */ 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(sal_systab->signature, "SST_", 4); 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab->size = sizeof(*sal_systab); 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab->sal_rev_minor = 1; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab->sal_rev_major = 0; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab->entry_count = 1; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IA64_GENERIC 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(sal_systab->oem_id, "Generic"); 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(sal_systab->product_id, "IA-64 system"); 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IA64_HP_SIM 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(sal_systab->oem_id, "Hewlett-Packard"); 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(sal_systab->product_id, "HP-simulator"); 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in an entry point: */ 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_ed->type = SAL_DESC_ENTRY_POINT; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_ed->pal_proc = __pa(pal_desc[0]); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_ed->sal_proc = __pa(sal_desc[0]); 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_ed->gp = __pa(sal_desc[1]); 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cp = (char *) sal_systab; cp < (char *) efi_memmap; ++cp) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds checksum += *cp; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sal_systab->checksum = -checksum; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if SIMPLE_MEMMAP 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* simulate free memory at physical address zero */ 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD(EFI_BOOT_SERVICES_DATA, EFI_MEMORY_WB, 0*MB, 1*MB); 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD(EFI_PAL_CODE, EFI_MEMORY_WB, 1*MB, 2*MB); 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, 2*MB, 130*MB); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, 4096*MB, 4128*MB); 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 4, 0x9, 0x0000000000000000, 0x0000000000001000); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x0000000000001000, 0x000000000008a000); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 4, 0x9, 0x000000000008a000, 0x00000000000a0000); 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 5, 0x8000000000000009, 0x00000000000c0000, 0x0000000000100000); 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x0000000000100000, 0x0000000004400000); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 2, 0x9, 0x0000000004400000, 0x0000000004be5000); 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x0000000004be5000, 0x000000007f77e000); 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 6, 0x8000000000000009, 0x000000007f77e000, 0x000000007fb94000); 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 6, 0x8000000000000009, 0x000000007fb94000, 0x000000007fb95000); 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 6, 0x8000000000000009, 0x000000007fb95000, 0x000000007fc00000); 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD(13, 0x8000000000000009, 0x000000007fc00000, 0x000000007fc3a000); 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x000000007fc3a000, 0x000000007fea0000); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 5, 0x8000000000000009, 0x000000007fea0000, 0x000000007fea8000); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x000000007fea8000, 0x000000007feab000); 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 5, 0x8000000000000009, 0x000000007feab000, 0x000000007ffff000); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MAKE_MD( 7, 0x9, 0x00000000ff400000, 0x0000000104000000); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->efi_systab = __pa(&fw_mem); 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->efi_memmap = __pa(efi_memmap); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->efi_memmap_size = NUM_MEM_DESCS*sizeof(efi_memory_desc_t); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->efi_memdesc_size = sizeof(efi_memory_desc_t); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->efi_memdesc_version = 1; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->command_line = __pa(cmd_line); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->console_info.num_cols = 80; 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->console_info.num_rows = 25; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->console_info.orig_x = 0; 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->console_info.orig_y = 24; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp->fpswa = 0; 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bp; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 374