mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
Add shims for calling PAL Code in physical mode.
This commit is contained in:
Doug Rabson
parent
c2c0f1952e
commit
965c805d64
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=84120
@ -1,5 +1,5 @@
|
||||
/*-
|
||||
* Copyright (c) 2000 Doug Rabson
|
||||
* Copyright (c) 2000-2001 Doug Rabson
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -28,7 +28,23 @@
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
BSS(ia64_pal_entry, 8)
|
||||
.data
|
||||
.global ia64_pal_entry
|
||||
ia64_pal_entry: .quad ia64_call_pal_stub
|
||||
.text
|
||||
|
||||
/*
|
||||
* Stub for running in simulation.
|
||||
*/
|
||||
ENTRY(ia64_call_pal_stub, 0)
|
||||
|
||||
mov r8=-3
|
||||
tbit.nz p6,p7=r28,8 // static or stacked?
|
||||
;;
|
||||
(p6) br.ret.sptk.few rp
|
||||
(p7) br.cond.sptk.few rp
|
||||
|
||||
END(ia64_call_pal_stub)
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_static(u_int64_t proc,
|
||||
@ -75,6 +91,60 @@ psrsave = loc4
|
||||
|
||||
END(ia64_call_pal_static)
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_static_physical(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
*/
|
||||
ENTRY(ia64_call_pal_static_physical, 4)
|
||||
|
||||
.regstk 4,5,0,0
|
||||
palret = loc0
|
||||
entry = loc1
|
||||
rpsave = loc2
|
||||
pfssave = loc3
|
||||
psrsave = loc4
|
||||
|
||||
alloc pfssave=ar.pfs,4,5,0,0
|
||||
;;
|
||||
mov rpsave=rp
|
||||
|
||||
movl entry=@gprel(ia64_pal_entry)
|
||||
1: mov palret=ip // for return address
|
||||
;;
|
||||
add entry=entry,gp
|
||||
mov r28=in0 // procedure number
|
||||
;;
|
||||
ld8 entry=[entry] // read entry point
|
||||
mov r29=in1 // copy arguments
|
||||
mov r30=in2
|
||||
mov r31=in3
|
||||
;;
|
||||
dep entry=0,entry,61,3 // physical address
|
||||
dep palret=0,palret,61,3 // physical address
|
||||
br.call.sptk.many rp=ia64_physical_mode
|
||||
mov psrsave=ret0
|
||||
;;
|
||||
mov b6=entry
|
||||
add palret=2f-1b,palret // calculate return address
|
||||
;;
|
||||
mov b0=palret
|
||||
br.cond.sptk b6 // call into firmware
|
||||
;;
|
||||
2: mov r14=psrsave
|
||||
;;
|
||||
br.call.sptk.many rp=ia64_change_mode
|
||||
;;
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_static_physical)
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_stacked(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
@ -107,7 +177,7 @@ psrsave = loc3
|
||||
rsm psr.i // disable interrupts
|
||||
;;
|
||||
br.call.sptk.many rp=b6 // call into firmware
|
||||
2: mov psr.l=psrsave
|
||||
mov psr.l=psrsave
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
@ -115,3 +185,52 @@ psrsave = loc3
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_stacked)
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_stacked_physical(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
*/
|
||||
ENTRY(ia64_call_pal_stacked_physical, 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 r28=in0 // procedure number
|
||||
mov out0=in0
|
||||
;;
|
||||
ld8 entry=[entry] // read entry point
|
||||
mov out1=in1 // copy arguments
|
||||
mov out2=in2
|
||||
mov out3=in3
|
||||
;;
|
||||
dep entry=0,entry,61,3 // physical address
|
||||
br.call.sptk.many rp=ia64_physical_mode
|
||||
mov psrsave=ret0
|
||||
;;
|
||||
mov b6=entry
|
||||
;;
|
||||
br.call.sptk.many rp=b6 // call into firmware
|
||||
;;
|
||||
mov r14=psrsave
|
||||
;;
|
||||
br.call.sptk.many rp=ia64_change_mode
|
||||
;;
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_stacked_physical)
|
||||
|
||||
#endif
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/*-
|
||||
* Copyright (c) 2000 Doug Rabson
|
||||
* Copyright (c) 2000-2001 Doug Rabson
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -28,7 +28,23 @@
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
BSS(ia64_pal_entry, 8)
|
||||
.data
|
||||
.global ia64_pal_entry
|
||||
ia64_pal_entry: .quad ia64_call_pal_stub
|
||||
.text
|
||||
|
||||
/*
|
||||
* Stub for running in simulation.
|
||||
*/
|
||||
ENTRY(ia64_call_pal_stub, 0)
|
||||
|
||||
mov r8=-3
|
||||
tbit.nz p6,p7=r28,8 // static or stacked?
|
||||
;;
|
||||
(p6) br.ret.sptk.few rp
|
||||
(p7) br.cond.sptk.few rp
|
||||
|
||||
END(ia64_call_pal_stub)
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_static(u_int64_t proc,
|
||||
@ -75,6 +91,60 @@ psrsave = loc4
|
||||
|
||||
END(ia64_call_pal_static)
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_static_physical(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
*/
|
||||
ENTRY(ia64_call_pal_static_physical, 4)
|
||||
|
||||
.regstk 4,5,0,0
|
||||
palret = loc0
|
||||
entry = loc1
|
||||
rpsave = loc2
|
||||
pfssave = loc3
|
||||
psrsave = loc4
|
||||
|
||||
alloc pfssave=ar.pfs,4,5,0,0
|
||||
;;
|
||||
mov rpsave=rp
|
||||
|
||||
movl entry=@gprel(ia64_pal_entry)
|
||||
1: mov palret=ip // for return address
|
||||
;;
|
||||
add entry=entry,gp
|
||||
mov r28=in0 // procedure number
|
||||
;;
|
||||
ld8 entry=[entry] // read entry point
|
||||
mov r29=in1 // copy arguments
|
||||
mov r30=in2
|
||||
mov r31=in3
|
||||
;;
|
||||
dep entry=0,entry,61,3 // physical address
|
||||
dep palret=0,palret,61,3 // physical address
|
||||
br.call.sptk.many rp=ia64_physical_mode
|
||||
mov psrsave=ret0
|
||||
;;
|
||||
mov b6=entry
|
||||
add palret=2f-1b,palret // calculate return address
|
||||
;;
|
||||
mov b0=palret
|
||||
br.cond.sptk b6 // call into firmware
|
||||
;;
|
||||
2: mov r14=psrsave
|
||||
;;
|
||||
br.call.sptk.many rp=ia64_change_mode
|
||||
;;
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_static_physical)
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_stacked(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
@ -107,7 +177,7 @@ psrsave = loc3
|
||||
rsm psr.i // disable interrupts
|
||||
;;
|
||||
br.call.sptk.many rp=b6 // call into firmware
|
||||
2: mov psr.l=psrsave
|
||||
mov psr.l=psrsave
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
@ -115,3 +185,52 @@ psrsave = loc3
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_stacked)
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* struct ia64_pal_result ia64_call_pal_stacked_physical(u_int64_t proc,
|
||||
* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
|
||||
*/
|
||||
ENTRY(ia64_call_pal_stacked_physical, 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 r28=in0 // procedure number
|
||||
mov out0=in0
|
||||
;;
|
||||
ld8 entry=[entry] // read entry point
|
||||
mov out1=in1 // copy arguments
|
||||
mov out2=in2
|
||||
mov out3=in3
|
||||
;;
|
||||
dep entry=0,entry,61,3 // physical address
|
||||
br.call.sptk.many rp=ia64_physical_mode
|
||||
mov psrsave=ret0
|
||||
;;
|
||||
mov b6=entry
|
||||
;;
|
||||
br.call.sptk.many rp=b6 // call into firmware
|
||||
;;
|
||||
mov r14=psrsave
|
||||
;;
|
||||
br.call.sptk.many rp=ia64_change_mode
|
||||
;;
|
||||
mov rp=rpsave
|
||||
mov ar.pfs=pfssave
|
||||
;;
|
||||
br.ret.sptk rp
|
||||
|
||||
END(ia64_call_pal_stacked_physical)
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user