| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* 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 |
| |
