^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) * misc.c: Miscellaneous prom functions that don't belong
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * anywhere else.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/openprom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/oplib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/ldc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static int prom_service_exists(const char *service_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) unsigned long args[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) args[0] = (unsigned long) "test";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) args[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) args[3] = (unsigned long) service_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) args[4] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (args[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) void prom_sun4v_guest_soft_state(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) const char *svc = "SUNW,soft-state-supported";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (!prom_service_exists(svc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) args[0] = (unsigned long) svc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) /* Reset and reboot the machine with the command 'bcommand'. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) void prom_reboot(const char *bcommand)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) unsigned long args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #ifdef CONFIG_SUN_LDOMS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) if (ldom_domaining_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) ldom_reboot(bcommand);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) args[0] = (unsigned long) "boot";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) args[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) args[3] = (unsigned long) bcommand;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* Forth evaluate the expression contained in 'fstring'. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) void prom_feval(const char *fstring)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) unsigned long args[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (!fstring || fstring[0] == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) args[0] = (unsigned long) "interpret";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) args[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) args[3] = (unsigned long) fstring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) args[4] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) EXPORT_SYMBOL(prom_feval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* Drop into the prom, with the chance to continue with the 'go'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * prom command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) void prom_cmdline(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) local_irq_save(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #ifdef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) smp_capture();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) args[0] = (unsigned long) "enter";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #ifdef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) smp_release();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* Drop into the prom, but completely terminate the program.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * No chance of continuing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) void notrace prom_halt(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #ifdef CONFIG_SUN_LDOMS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (ldom_domaining_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ldom_power_off();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) again:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) args[0] = (unsigned long) "exit";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) goto again; /* PROM is out to get me -DaveM */
^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) void prom_halt_power_off(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #ifdef CONFIG_SUN_LDOMS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (ldom_domaining_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) ldom_power_off();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) args[0] = (unsigned long) "SUNW,power-off";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /* if nothing else helps, we just halt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) prom_halt();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* Get the idprom and stuff it into buffer 'idbuf'. Returns the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * format type. 'num_bytes' is the number of bytes that your idbuf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * has space for. Returns 0xff on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) unsigned char prom_get_idprom(char *idbuf, int num_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) len = prom_getproplen(prom_root_node, "idprom");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if ((len >num_bytes) || (len == -1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (!prom_getproperty(prom_root_node, "idprom", idbuf, num_bytes))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) return idbuf[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int prom_get_mmu_ihandle(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) phandle node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) if (prom_mmu_ihandle_cache != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return prom_mmu_ihandle_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) node = prom_finddevice(prom_chosen_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ret = prom_getint(node, prom_mmu_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (ret == -1 || ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) prom_mmu_ihandle_cache = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) prom_mmu_ihandle_cache = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static int prom_get_memory_ihandle(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static int memory_ihandle_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) phandle node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) if (memory_ihandle_cache != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return memory_ihandle_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) node = prom_finddevice("/chosen");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) ret = prom_getint(node, "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (ret == -1 || ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) memory_ihandle_cache = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) memory_ihandle_cache = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* Load explicit I/D TLB entries. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static long tlb_load(const char *type, unsigned long index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) unsigned long tte_data, unsigned long vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) unsigned long args[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) args[0] = (unsigned long) prom_callmethod_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) args[1] = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) args[3] = (unsigned long) type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) args[4] = (unsigned int) prom_get_mmu_ihandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) args[5] = vaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) args[6] = tte_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) args[7] = index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) args[8] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) return (long) args[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) long prom_itlb_load(unsigned long index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) unsigned long tte_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) unsigned long vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return tlb_load("SUNW,itlb-load", index, tte_data, vaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) long prom_dtlb_load(unsigned long index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) unsigned long tte_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) unsigned long vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return tlb_load("SUNW,dtlb-load", index, tte_data, vaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int prom_map(int mode, unsigned long size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) unsigned long vaddr, unsigned long paddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) unsigned long args[11];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) args[0] = (unsigned long) prom_callmethod_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) args[1] = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) args[3] = (unsigned long) prom_map_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) args[4] = (unsigned int) prom_get_mmu_ihandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) args[5] = (unsigned int) mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) args[6] = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) args[7] = vaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) args[8] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) args[9] = paddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) args[10] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) ret = (int) args[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) ret = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) void prom_unmap(unsigned long size, unsigned long vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) unsigned long args[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) args[0] = (unsigned long) prom_callmethod_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) args[1] = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) args[3] = (unsigned long) prom_unmap_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) args[4] = (unsigned int) prom_get_mmu_ihandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) args[5] = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) args[6] = vaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) /* Set aside physical memory which is not touched or modified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * across soft resets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) int prom_retain(const char *name, unsigned long size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) unsigned long align, unsigned long *paddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) unsigned long args[11];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) args[0] = (unsigned long) prom_callmethod_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) args[1] = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) args[2] = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) args[3] = (unsigned long) "SUNW,retain";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) args[4] = (unsigned int) prom_get_memory_ihandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) args[5] = align;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) args[6] = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) args[7] = (unsigned long) name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) args[8] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) args[9] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) args[10] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (args[8])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return (int) args[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) /* Next we get "phys_high" then "phys_low". On 64-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * the phys_high cell is don't care since the phys_low
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * cell has the full value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) *paddr = args[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) /* Get "Unumber" string for the SIMM at the given
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * memory address. Usually this will be of the form
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * "Uxxxx" where xxxx is a decimal number which is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * etched into the motherboard next to the SIMM slot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * in question.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int prom_getunumber(int syndrome_code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) unsigned long phys_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) char *buf, int buflen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) unsigned long args[12];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) args[0] = (unsigned long) prom_callmethod_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) args[1] = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) args[2] = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) args[3] = (unsigned long) "SUNW,get-unumber";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) args[4] = (unsigned int) prom_get_memory_ihandle();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) args[5] = buflen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) args[6] = (unsigned long) buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) args[7] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) args[8] = phys_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) args[9] = (unsigned int) syndrome_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) args[10] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) args[11] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return (int) args[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) /* Power management extensions. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) void prom_sleepself(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) args[0] = (unsigned long) "SUNW,sleep-self";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) int prom_sleepsystem(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) unsigned long args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) args[0] = (unsigned long) "SUNW,sleep-system";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) args[3] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return (int) args[3];
^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) int prom_wakeupsystem(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) unsigned long args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) args[0] = (unsigned long) "SUNW,wakeup-system";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) args[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) args[3] = (unsigned long) -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return (int) args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) #ifdef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) unsigned long args[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) args[0] = (unsigned long) "SUNW,start-cpu";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) args[1] = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) args[3] = (unsigned int) cpunode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) args[4] = pc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) args[5] = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) unsigned long args[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) args[0] = (unsigned long) "SUNW,start-cpu-by-cpuid";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) args[1] = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) args[3] = (unsigned int) cpuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) args[4] = pc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) args[5] = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) void prom_stopcpu_cpuid(int cpuid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) unsigned long args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) args[0] = (unsigned long) "SUNW,stop-cpu-by-cpuid";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) args[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) args[3] = (unsigned int) cpuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) void prom_stopself(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) args[0] = (unsigned long) "SUNW,stop-self";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) void prom_idleself(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) unsigned long args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) args[0] = (unsigned long) "SUNW,idle-self";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) args[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) void prom_resumecpu(int cpunode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) unsigned long args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) args[0] = (unsigned long) "SUNW,resume-cpu";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) args[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) args[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) args[3] = (unsigned int) cpunode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) p1275_cmd_direct(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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