| * p1275.c: Sun IEEE 1275 PROM low level interface routines |
| * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/spinlock.h> |
| #include <linux/irqflags.h> |
| #include <asm/openprom.h> |
| #include <asm/spitfire.h> |
| long prom_callback; /* 0x00 */ |
| void (*prom_cif_handler)(long *); /* 0x08 */ |
| extern void prom_world(int); |
| extern void prom_cif_direct(unsigned long *args); |
| extern void prom_cif_callback(void); |
| * This provides SMP safety on the p1275buf. |
| DEFINE_RAW_SPINLOCK(prom_entry_lock); |
| void p1275_cmd_direct(unsigned long *args) |
| local_irq_restore((unsigned long)PIL_NMI); |
| raw_spin_lock(&prom_entry_lock); |
| raw_spin_unlock(&prom_entry_lock); |
| local_irq_restore(flags); |
| void prom_cif_init(void *cif_handler, void *cif_stack) |
| p1275buf.prom_cif_handler = (void (*)(long *))cif_handler; |