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| /* 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
|
|
