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 9BEGIN { 10 printf("#include <machine/asm.h>\n\n"); 11 printf("#define hc .long 0x44000022\n\n"); 12} 13 14/HVCALL.*/ { 15 # Parameter save area 16 # 48 in elfv1, 32 in elfv2 17 stack_offset = 32; 18 19 code = $2; 20 ins = split($4, a, ",") 21 outs = split($5, a, ",") 22 23 printf("ASENTRY(%s)\n",$3); 24 printf("\tmflr %%r0\n"); 25 printf("\tstd %%r0,16(%%r1)\n"); 26 printf("\tstdu %%r1,-%d(%%r1)\n", stack_offset+8*outs); 27 28 if ($4 == "UNUSED") 29 ins = 0 30 31 # Save output reg addresses to the stack 32 for (i = 0; i < outs; i++) { 33 if (ins+i >= 8) { 34 printf("\tld %%r11,%d(%%r1)\n", stack_offset+8*outs + stack_offset + 8*(i+ins)); 35 printf("\tstd %%r11,%d(%%r1)\n", stack_offset+8*i); 36 } else { 37 printf("\tstd %%r%d,%d(%%r1)\n", 3+ins+i, stack_offset+8*i); 38 } 39 } 40 41 printf("\tli %%r11,%d\n", code); 42 printf("\thc\n"); 43 printf("\textsw %%r3,%%r3\n"); 44 45 for (i = 0; i < outs; i++) { 46 printf("\tld %%r11,%d(%%r1)\n", stack_offset+8*i); 47 printf("\tstd %%r%d,0(%%r11)\n", 4+i); 48 } 49 50 printf("\tld %%r1,0(%%r1)\n"); 51 printf("\tld %%r0,16(%%r1)\n"); 52 printf("\tmtlr %%r0\n"); 53 printf("\tblr\n"); 54 55 printf("ASEND(%s)\n\n",$3); 56} 57