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 11BEGIN { 12 printf("#include <machine/asm.h>\n\n"); 13 printf("#define hc .long 0x44000022\n\n"); 14} 15 16/HVCALL.*/ { 17 code = $2; 18 ins = split($4, a, ",") 19 outs = split($5, a, ",") 20 21 printf("ASENTRY(%s)\n",$3); 22 printf("\tmflr %%r0\n"); 23 printf("\tstd %%r0,16(%%r1)\n"); 24 printf("\tstdu %%r1,-%d(%%r1)\n", 48+8*outs); 25 26 if ($4 == "UNUSED") 27 ins = 0 28 29 # Save output reg addresses to the stack 30 for (i = 0; i < outs; i++) { 31 if (ins+i >= 8) { 32 printf("\tld %%r11,%d(%%r1)\n", 48+8*outs + 48 + 8*(i+ins)); 33 printf("\tstd %%r11,%d(%%r1)\n", 48+8*i); 34 } else { 35 printf("\tstd %%r%d,%d(%%r1)\n", 3+ins+i, 48+8*i); 36 } 37 } 38 39 printf("\tli %%r11,%d\n", code); 40 printf("\thc\n"); 41 printf("\textsw %%r3,%%r3\n"); 42 43 for (i = 0; i < outs; i++) { 44 printf("\tld %%r11,%d(%%r1)\n", 48+8*i); 45 printf("\tstd %%r%d,0(%%r11)\n", 4+i); 46 } 47 48 printf("\tld %%r1,0(%%r1)\n"); 49 printf("\tld %%r0,16(%%r1)\n"); 50 printf("\tmtlr %%r0\n"); 51 printf("\tblr\n\n"); 52} 53