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Code Issues Releases Activity

We need different call stubs for static and stacked calling conventions.

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This commit is contained in:
Doug Rabson 2001-09-24 19:41:16 +00:00
parent 9164a3125a
commit 32956c3d49
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=83905
3 changed files with 99 additions and 12 deletions
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52
sys/ia64/ia64/pal.S
View File

@ -31,10 +31,10 @@
BSS(ia64_pal_entry, 8)
/*
* struct ia64_pal_result ia64_call_pal(u_int64_t proc,
* struct ia64_pal_result ia64_call_pal_static(u_int64_t proc,
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
*/
ENTRY(ia64_call_pal, 4)
ENTRY(ia64_call_pal_static, 4)
.regstk 4,5,0,0
palret = loc0
@ -47,9 +47,10 @@ psrsave = loc4
;;
mov rpsave=rp
movl entry=ia64_pal_entry
movl entry=@gprel(ia64_pal_entry)
1: mov palret=ip // for return address
;;
;;
add entry=entry,gp
mov psrsave=psr
mov r28=in0 // procedure number
;;
@ -72,4 +73,45 @@ psrsave = loc4
srlz.d
br.ret.sptk rp
END(ia64_call_pal)
END(ia64_call_pal_static)
/*
* struct ia64_pal_result ia64_call_pal_stacked(u_int64_t proc,
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
*/
ENTRY(ia64_call_pal_stacked, 4)
.regstk 4,4,4,0
entry = loc0
rpsave = loc1
pfssave = loc2
psrsave = loc3
alloc pfssave=ar.pfs,4,4,4,0
;;
mov rpsave=rp
movl entry=@gprel(ia64_pal_entry)
;;
add entry=entry,gp
mov psrsave=psr
mov r28=in0 // procedure number
mov out0=in0
;;
ld8 entry=[entry] // read entry point
mov out1=in1 // copy arguments
mov out2=in2
mov out3=in3
;;
mov b1=entry
;;
rsm psr.i // disable interrupts
;;
br.call.sptk.many rp=b1 // call into firmware
2: mov psr.l=psrsave
mov rp=rpsave
mov ar.pfs=pfssave
;;
srlz.d
br.ret.sptk rp
END(ia64_call_pal_stacked)

52
sys/ia64/ia64/pal.s
View File

@ -31,10 +31,10 @@
BSS(ia64_pal_entry, 8)
/*
* struct ia64_pal_result ia64_call_pal(u_int64_t proc,
* struct ia64_pal_result ia64_call_pal_static(u_int64_t proc,
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
*/
ENTRY(ia64_call_pal, 4)
ENTRY(ia64_call_pal_static, 4)
.regstk 4,5,0,0
palret = loc0
@ -47,9 +47,10 @@ psrsave = loc4
;;
mov rpsave=rp
movl entry=ia64_pal_entry
movl entry=@gprel(ia64_pal_entry)
1: mov palret=ip // for return address
;;
;;
add entry=entry,gp
mov psrsave=psr
mov r28=in0 // procedure number
;;
@ -72,4 +73,45 @@ psrsave = loc4
srlz.d
br.ret.sptk rp
END(ia64_call_pal)
END(ia64_call_pal_static)
/*
* struct ia64_pal_result ia64_call_pal_stacked(u_int64_t proc,
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
*/
ENTRY(ia64_call_pal_stacked, 4)
.regstk 4,4,4,0
entry = loc0
rpsave = loc1
pfssave = loc2
psrsave = loc3
alloc pfssave=ar.pfs,4,4,4,0
;;
mov rpsave=rp
movl entry=@gprel(ia64_pal_entry)
;;
add entry=entry,gp
mov psrsave=psr
mov r28=in0 // procedure number
mov out0=in0
;;
ld8 entry=[entry] // read entry point
mov out1=in1 // copy arguments
mov out2=in2
mov out3=in3
;;
mov b1=entry
;;
rsm psr.i // disable interrupts
;;
br.call.sptk.many rp=b1 // call into firmware
2: mov psr.l=psrsave
mov rp=rpsave
mov ar.pfs=pfssave
;;
srlz.d
br.ret.sptk rp
END(ia64_call_pal_stacked)

7
sys/ia64/include/pal.h
View File

@ -88,8 +88,11 @@ struct ia64_pal_result {
};
extern struct ia64_pal_result
ia64_call_pal(u_int64_t proc, u_int64_t arg1,
u_int64_t arg2, u_int64_t arg3);
ia64_call_pal_static(u_int64_t proc, u_int64_t arg1,
u_int64_t arg2, u_int64_t arg3);
extern struct ia64_pal_result
ia64_call_pal_stacked(u_int64_t proc, u_int64_t arg1,
u_int64_t arg2, u_int64_t arg3);
#endif /* _MACHINE_PAL_H_ */