]> CyberLeo.Net >> Repos - FreeBSD/releng/10.0.git/blob - sys/powerpc/ps3/ps3-hv-asm.awk
- Copy stable/10 (r259064) to releng/10.0 as part of the
[FreeBSD/releng/10.0.git] / sys / powerpc / ps3 / ps3-hv-asm.awk
1 # This script generates the PS3 hypervisor call stubs from an HV
2 # interface definition file. The PS3 HV calling convention is very
3 # similar to the PAPR one, except that the function token is passed in
4 # r11 instead of r3.
5 #
6 # Invoke like so: awk -f ps3-hv-asm.awk < ps3-hvcall.master > ps3-hvcall.S
7 #
8
9 # $FreeBSD$
10
11 BEGIN {
12         printf("/* $FreeBSD$ */\n\n");
13         printf("#include <machine/asm.h>\n\n");
14         printf("#define hc .long 0x44000022\n\n");
15 }
16
17 /HVCALL.*/ {
18         code = $2;
19         ins = split($4, a, ",")
20         outs = split($5, a, ",")
21         
22         printf("ASENTRY(%s)\n",$3);
23         printf("\tmflr  %%r0\n");
24         printf("\tstd   %%r0,16(%%r1)\n");
25         printf("\tstdu  %%r1,-%d(%%r1)\n", 48+8*outs);
26
27         if ($4 == "UNUSED")
28                 ins = 0
29         
30         # Save output reg addresses to the stack
31         for (i = 0; i < outs; i++) {
32                 if (ins+i >= 8) {
33                    printf("\tld %%r11,%d(%%r1)\n", 48+8*outs + 48 + 8*(i+ins));
34                    printf("\tstd        %%r11,%d(%%r1)\n", 48+8*i);
35                 } else {
36                    printf("\tstd        %%r%d,%d(%%r1)\n", 3+ins+i, 48+8*i);
37                 }
38         }
39
40         printf("\tli    %%r11,%d\n", code);
41         printf("\thc\n");
42         printf("\textsw %%r3,%%r3\n");
43                 
44         for (i = 0; i < outs; i++) {
45                 printf("\tld    %%r11,%d(%%r1)\n", 48+8*i);
46                 printf("\tstd   %%r%d,0(%%r11)\n", 4+i);
47         }
48
49         printf("\tld    %%r1,0(%%r1)\n");
50         printf("\tld    %%r0,16(%%r1)\n");
51         printf("\tmtlr  %%r0\n");
52         printf("\tblr\n\n");
53 }