| /* cif.S: PROM entry/exit assembler trampolines. | |
| * | |
| * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
| * Copyright (C) 2005, 2006 David S. Miller <davem@davemloft.net> | |
| */ | |
| #include <asm/pstate.h> | |
| #include <asm/cpudata.h> | |
| #include <asm/thread_info.h> | |
| .text | |
| .globl prom_cif_direct | |
| prom_cif_direct: | |
| save %sp, -192, %sp | |
| sethi %hi(p1275buf), %o1 | |
| or %o1, %lo(p1275buf), %o1 | |
| ldx [%o1 + 0x0008], %l2 ! prom_cif_handler | |
| mov %g4, %l0 | |
| mov %g5, %l1 | |
| mov %g6, %l3 | |
| call %l2 | |
| mov %i0, %o0 ! prom_args | |
| mov %l0, %g4 | |
| mov %l1, %g5 | |
| mov %l3, %g6 | |
| ret | |
| restore | |
| .globl prom_cif_callback | |
| prom_cif_callback: | |
| sethi %hi(p1275buf), %o1 | |
| or %o1, %lo(p1275buf), %o1 | |
| save %sp, -192, %sp | |
| TRAP_LOAD_THREAD_REG(%g6, %g1) | |
| LOAD_PER_CPU_BASE(%g5, %g6, %g4, %g3, %o0) | |
| ldx [%g6 + TI_TASK], %g4 | |
| call prom_world | |
| mov 0, %o0 | |
| ldx [%i1 + 0x000], %l2 | |
| call %l2 | |
| mov %i0, %o0 | |
| mov %o0, %l1 | |
| call prom_world | |
| mov 1, %o0 | |
| ret | |
| restore %l1, 0, %o0 | |