1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* 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_interface
prom_cif_interface:
sethi %hi(p1275buf), %o0
or %o0, %lo(p1275buf), %o0
ldx [%o0 + 0x010], %o1 ! prom_cif_stack
save %o1, -192, %sp
ldx [%i0 + 0x008], %l2 ! prom_cif_handler
mov %g4, %l0
mov %g5, %l1
mov %g6, %l3
call %l2
add %i0, 0x018, %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
|
