55e3b9f743
remove unused code
console/Makefile:
cleanup Makefile. Remove unneeded -D options
console/console.c:
Major cleanup and formatting
remove unused #ifdef code
remove unused #includes
rename xxm -> m5
rename simos -> m5
console/dbmentry.S:
console/paljtokern.S:
console/paljtoslave.S:
console/printf.c:
Major cleanup and formatting
remove unused #ifdef code
remove unused #includes
rename __start -> _start to get rid of warning.
h/cserve.h:
h/dc21164FromGasSources.h:
h/ev5_alpha_defs.h:
h/ev5_defs.h:
h/ev5_osfalpha_defs.h:
h/ev5_paldef.h:
h/fromHudsonMacros.h:
h/fromHudsonOsf.h:
h/rpb.h:
Major cleanup and formatting
h/ev5_impure.h:
Major cleanup and formatting
remove unused #ifdef code
palcode/Makefile:
cleanup Makefile
remove unused -D options
unify platform_tlaser.S and platform_tsunami.S into platform.S and
generate multiple .o files using various #defines
unify osfpal.S osfpal_cache_copy.S and osfpal_cache_copy_unaligned.S into
osfpal.S and generate multiple .o files using various #defines
palcode/osfpal.S:
Major cleanup and formatting
remove unused #defines
remove unused #if code
merge copy code into this file.
palcode/platform.S:
Major cleanup and formatting
remove unused #defines
remove unused #if code
merge platform code into this file.
220 lines
6.3 KiB
ArmAsm
220 lines
6.3 KiB
ArmAsm
/*
|
|
* Copyright (c) 2003, 2004
|
|
* The Regents of The University of Michigan
|
|
* All Rights Reserved
|
|
*
|
|
* This code is part of the M5 simulator, developed by Nathan Binkert,
|
|
* Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions
|
|
* from Ron Dreslinski, Dave Greene, Lisa Hsu, Ali Saidi, and Andrew
|
|
* Schultz.
|
|
*
|
|
* Permission is granted to use, copy, create derivative works and
|
|
* redistribute this software and such derivative works for any purpose,
|
|
* so long as the copyright notice above, this grant of permission, and
|
|
* the disclaimer below appear in all copies made; and so long as the
|
|
* name of The University of Michigan is not used in any advertising or
|
|
* publicity pertaining to the use or distribution of this software
|
|
* without specific, written prior authorization.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE
|
|
* UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND WITHOUT
|
|
* WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER EXPRESS OR
|
|
* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REGENTS OF
|
|
* THE UNIVERSITY OF MICHIGAN SHALL NOT BE LIABLE FOR ANY DAMAGES,
|
|
* INCLUDING DIRECT, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
|
|
* DAMAGES, WITH RESPECT TO ANY CLAIM ARISING OUT OF OR IN CONNECTION
|
|
* WITH THE USE OF THE SOFTWARE, EVEN IF IT HAS BEEN OR IS HEREAFTER
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
|
|
*/
|
|
/*
|
|
* Copyright 1993 Hewlett-Packard Development Company, L.P.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Debug Monitor Entry code
|
|
*/
|
|
#include "fromHudsonOsf.h"
|
|
|
|
.text
|
|
|
|
/* return address and padding to octaword align */
|
|
#define STARTFRM 16
|
|
|
|
.globl _start
|
|
.ent _start, 0
|
|
_start:
|
|
_entry:
|
|
br t0, 2f # get the current PC
|
|
2: ldgp gp, 0(t0) # init gp
|
|
|
|
/*
|
|
* SimOS. Stack pointer is start of a valid phys or KSEG page
|
|
*/
|
|
|
|
bis sp,sp,s0 /* save sp */
|
|
|
|
slave: lda v0,(8*1024)(sp) /* end of page */
|
|
|
|
subq zero, 1, t0
|
|
sll t0, 42, t0
|
|
bis t0, v0, sp
|
|
|
|
lda sp, -STARTFRM(sp) # Create a stack frame
|
|
stq ra, 0(sp) # Place return address on the stack
|
|
|
|
.mask 0x84000000, -8
|
|
.frame sp, STARTFRM, ra
|
|
|
|
/*
|
|
* Enable the Floating Point Unit
|
|
*/
|
|
lda a0, 1(zero)
|
|
call_pal PAL_WRFEN_ENTRY
|
|
|
|
/*
|
|
* Every good C program has a main()
|
|
*/
|
|
|
|
beq s0,master
|
|
|
|
call_pal PAL_WHAMI_ENTRY
|
|
bis v0,v0,a0
|
|
jsr ra, SlaveLoop
|
|
master:
|
|
jsr ra, main
|
|
|
|
|
|
|
|
/*
|
|
* The Debug Monitor should never return.
|
|
* However, just incase...
|
|
*/
|
|
ldgp gp, 0(ra)
|
|
bsr zero, _exit
|
|
|
|
.end _start
|
|
|
|
|
|
|
|
.globl _exit
|
|
.ent _exit, 0
|
|
_exit:
|
|
|
|
ldq ra, 0(sp) # restore return address
|
|
lda sp, STARTFRM(sp) # prune back the stack
|
|
ret zero, (ra) # Back from whence we came
|
|
.end _exit
|
|
|
|
.globl cServe
|
|
.ent cServe 2
|
|
cServe:
|
|
.option O1
|
|
.frame sp, 0, ra
|
|
call_pal PAL_CSERVE_ENTRY
|
|
ret zero, (ra)
|
|
.end cServe
|
|
|
|
.globl wrfen
|
|
.ent wrfen 2
|
|
wrfen:
|
|
.option O1
|
|
.frame sp, 0, ra
|
|
call_pal PAL_WRFEN_ENTRY
|
|
ret zero, (ra)
|
|
.end wrfen
|
|
.globl consoleCallback
|
|
.ent consoleCallback 2
|
|
consoleCallback:
|
|
br t0, 2f # get the current PC
|
|
2: ldgp gp, 0(t0) # init gp
|
|
lda sp,-64(sp)
|
|
stq ra,0(sp)
|
|
jsr CallBackDispatcher
|
|
ldq ra,0(sp)
|
|
lda sp,64(sp)
|
|
ret zero,(ra)
|
|
.end consoleCallback
|
|
|
|
|
|
.globl consoleFixup
|
|
.ent consoleFixup 2
|
|
consoleFixup:
|
|
br t0, 2f # get the current PC
|
|
2: ldgp gp, 0(t0) # init gp
|
|
lda sp,-64(sp)
|
|
stq ra,0(sp)
|
|
jsr CallBackFixup
|
|
ldq ra,0(sp)
|
|
lda sp,64(sp)
|
|
ret zero,(ra)
|
|
.end consoleFixup
|
|
|
|
|
|
|
|
.globl SpinLock
|
|
.ent SpinLock 2
|
|
SpinLock:
|
|
1:
|
|
ldq_l a1,0(a0) # interlock complete lock state
|
|
subl ra,3,v0 # get calling addr[31:0] + 1
|
|
blbs a1,2f # branch if lock is busy
|
|
stq_c v0,0(a0) # attempt to acquire lock
|
|
beq v0,2f # branch if lost atomicity
|
|
mb # ensure memory coherence
|
|
ret zero,(ra) # return to caller (v0 is 1)
|
|
2:
|
|
br zero,1b
|
|
.end SpinLock
|
|
|
|
.globl loadContext
|
|
.ent loadContext 2
|
|
loadContext:
|
|
.option O1
|
|
.frame sp, 0, ra
|
|
call_pal PAL_SWPCTX_ENTRY
|
|
ret zero, (ra)
|
|
.end loadContext
|
|
|
|
|
|
.globl SlaveSpin # Very carefully spin wait
|
|
.ent SlaveSpin 2 # and swap context without
|
|
SlaveSpin: # using any stack space
|
|
.option O1
|
|
.frame sp, 0, ra
|
|
mov a0, t0 # cpu number
|
|
mov a1, t1 # cpu rpb pointer (virtual)
|
|
mov a2, t2 # what to spin on
|
|
|
|
test: ldl t3, 0(t2)
|
|
beq t3, test
|
|
zapnot t1,0x1f,a0 # make rpb physical
|
|
call_pal PAL_SWPCTX_ENTRY # switch to pcb
|
|
mov t0, a0 # setup args for SlaveCmd
|
|
mov t1, a1
|
|
jsr SlaveCmd # call SlaveCmd
|
|
ret zero, (ra) # Should never be reached
|
|
.end SlaveSpin
|
|
|
|
|