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Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / verif / diag / assembly / exu / exu_win_traps_8th_n2.s
/*
* ========== Copyright Header Begin ==========================================
*
* OpenSPARC T2 Processor File: exu_win_traps_8th_n2.s
* Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
* 4150 Network Circle, Santa Clara, California 95054, U.S.A.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt, and except that if any non-GPL license
* choice is available it will apply instead, Sun elects to use only
* the General Public License version 2 (GPLv2) at this time for any
* software where a choice of GPL license versions is made
* available with the language indicating that GPLv2 or any later version
* may be used, or where a choice of which version of the GPL is applied is
* otherwise unspecified.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*
* ========== Copyright Header End ============================================
*/
#define H_VERSION_MAXWIN_MASK 0x1f
! communication betweent the test loop and the trap handlers.
#define FINISH_DONE 1
#define FINISH_RETRY 2
#define TRAP_NOT_TAKEN 1
#define TRAP_TAKEN 0x1fff
#define SKIP_TRAPCHECK
#define H_T0_Clean_Window trap_clean
#define H_T0_Window_Spill_0_Normal_Trap trap_spill
#define H_T0_Window_Spill_1_Normal_Trap trap_spill
#define H_T0_Window_Spill_2_Normal_Trap trap_spill
#define H_T0_Window_Spill_3_Normal_Trap trap_spill
#define H_T0_Window_Spill_4_Normal_Trap trap_spill
#define H_T0_Window_Spill_5_Normal_Trap trap_spill
#define H_T0_Window_Spill_6_Normal_Trap trap_spill
#define H_T0_Window_Spill_7_Normal_Trap trap_spill
#define H_T0_Window_Spill_0_Other_Trap trap_spill
#define H_T0_Window_Spill_1_Other_Trap trap_spill
#define H_T0_Window_Spill_2_Other_Trap trap_spill
#define H_T0_Window_Spill_3_Other_Trap trap_spill
#define H_T0_Window_Spill_4_Other_Trap trap_spill
#define H_T0_Window_Spill_5_Other_Trap trap_spill
#define H_T0_Window_Spill_6_Other_Trap trap_spill
#define H_T0_Window_Spill_7_Other_Trap trap_spill
#define H_T0_Window_Fill_0_Normal_Trap trap_fill
#define H_T0_Window_Fill_1_Normal_Trap trap_fill
#define H_T0_Window_Fill_2_Normal_Trap trap_fill
#define H_T0_Window_Fill_3_Normal_Trap trap_fill
#define H_T0_Window_Fill_4_Normal_Trap trap_fill
#define H_T0_Window_Fill_5_Normal_Trap trap_fill
#define H_T0_Window_Fill_6_Normal_Trap trap_fill
#define H_T0_Window_Fill_7_Normal_Trap trap_fill
#define H_T0_Window_Fill_0_Other_Trap trap_fill
#define H_T0_Window_Fill_1_Other_Trap trap_fill
#define H_T0_Window_Fill_2_Other_Trap trap_fill
#define H_T0_Window_Fill_3_Other_Trap trap_fill
#define H_T0_Window_Fill_4_Other_Trap trap_fill
#define H_T0_Window_Fill_5_Other_Trap trap_fill
#define H_T0_Window_Fill_6_Other_Trap trap_fill
#define H_T0_Window_Fill_7_Other_Trap trap_fill
/***********************************************************************/
#define MAIN_PAGE_HV_ALSO
#define MAIN_PAGE_NUCLEUS_ALSO
#define THREAD_COUNT 8
#define THREAD_STRIDE 1
#include "hboot.s"
.global main
main:
th_fork(th_main,%l0) ! start up to four threads.
! No need to run more than one core.
! All threads do the same thing, except for this one bit of setup...
th_main_0:
! SAS mismatches on version reg...grumble grumble
mov 7,%g4
! ta T_CHANGE_HPRIV
!rdhpr %ver,%g4 ! get VERSION (NWINDOWS-1)
!ta T_CHANGE_NONHPRIV
!and %g4,H_VERSION_MAXWIN_MASK,%g4
set max_win,%l1
stx %g4,[%l1] ! save max_win value for later
ba th_main_all
nop
th_main_1:
th_main_2:
th_main_3:
th_main_4:
th_main_5:
th_main_6:
th_main_7:
mov 7,%g4
! ta T_CHANGE_HPRIV
!rdhpr %ver,%g4 ! get VERSION (NWINDOWS-1)
!ta T_CHANGE_NONHPRIV
and %g4,H_VERSION_MAXWIN_MASK,%g4
set max_win,%l1
stx %g4,[%l1] ! save max_win value for later
ba th_main_all
nop
th_main_all:
! place the window number, tid, and register number (r8-r23) in the local
! and out registers of each register window.
! Values in the form 00ttwwrr 00000000, ensure each register
! has a unique value. Lower half of register will be used as a counter.
sethi %hi(0x80000000),%g1
sllx %g1,4,%g1 ! base reg number in bits 39 to 32
sllx %l0,48,%l0
or %l0,%g1,%g1 ! thread id in bits 55 to 48
sethi %hi(0x10000000),%g2
sllx %g2,4,%g2 ! reg increment
add %g0,1,%g3
sllx %g3,40,%g3 ! window increment in bit 40
! read current CWP, CANRESTORE, just fyi.
! add one to CANSAVE to allow init of last window's regs
ta T_CHANGE_PRIV
rdpr %cwp,%g5
rdpr %cansave,%g6
wrpr %g4,0,%cansave ! set CANSAVE = maxwin
rdpr %canrestore,%g7
ta T_CHANGE_NONPRIV
reg_init:
add %g0,%g1,%r8
add %r8,%g2,%r9
add %r9,%g2,%r10
add %r10,%g2,%r11
add %r11,%g2,%r12
add %r12,%g2,%r13
add %r13,%g2,%r14
add %r14,%g2,%r15
add %r15,%g2,%r16
add %r16,%g2,%r17
add %r17,%g2,%r18
add %r18,%g2,%r19
add %r19,%g2,%r20
add %r20,%g2,%r21
add %r21,%g2,%r22
add %r22,%g2,%r23
brz %g4,reg_init_done
sub %g4,1,%g4
save %g3,%g1,%g1 ! increment window field of g1, next window
ba reg_init
nop
reg_init_done:
set max_win,%g1
ldx [%g1],%g4
!!*********************************************************************
!! save 1: OTHERWIN = 0, WSTATE.NORMAL=0
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g5,0,%cansave ! CANSAVE = maxwin-1
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save1:
save %o0,1,%i0 ! effectively x++
brlz %g6,save1_done
nop
add %i1,1,%i1
! add %l1,1,%l1 ! l1 and o1 are unpredictable for SAVE, so do not
! add %o1,1,%o1 ! mess with them. SAS will pick up rtl mismatch
ba save1
nop
save1_done:
!!*********************************************************************
!! save 2: OTHERWIN = 0, WSTATE.NORMAL=1
!!*********************************************************************
sub %g4,2,%g5
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g5,0,%cleanwin ! CLEANWIN = maxwin-2
wrpr %g0,0,%otherwin
wrpr %g0,1,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save2:
save %o0,1,%i0 ! effectively x++
brlz %g6,save2_done
nop
add %i2,1,%i2
ba save2
nop
save2_done:
!!*********************************************************************
!! save 3: OTHERWIN = 0, WSTATE.NORMAL=2
!!*********************************************************************
sub %g4,2,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-2
wrpr %g0,4,%cansave ! CANSAVE = 4
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,2,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save3:
save %o0,1,%i0 ! effectively x++
brlz %g6,save3_done
nop
add %i3,1,%i3
ba save3
nop
save3_done:
!!*********************************************************************
!! save 4: OTHERWIN = 0, WSTATE.NORMAL=3
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,1,%cwp ! CWP = 1
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,2,%cleanwin ! CLEANWIN = 2
wrpr %g0,0,%otherwin
wrpr %g0,3,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save4:
save %o0,1,%i0 ! effectively x++
brlz %g6,save4_done
nop
add %i4,1,%i4
ba save4
nop
save4_done:
!!*********************************************************************
!! save 5: OTHERWIN = 0, WSTATE.NORMAL=4
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,1,%cwp ! CWP = 1
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g0,2,%cleanwin ! CLEANWIN = 2
wrpr %g0,0,%otherwin
wrpr %g0,0x34,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save5:
save %o0,1,%i0 ! effectively x++
brlz %g6,save5_done
nop
add %i5,1,%i5
ba save5
nop
save5_done:
!!*********************************************************************
!! save 6: OTHERWIN = 0, WSTATE.NORMAL=5
!!*********************************************************************
sub %g4,2,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-2
wrpr %g0,2,%cansave ! CANSAVE = 2
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,4,%cleanwin ! CLEANWIN = 4
wrpr %g0,0,%otherwin
wrpr %g0,0x3b,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save6:
save %o0,1,%i0 ! effectively x++
brlz %g6,save6_done
nop
add %i6,1,%i6
ba save6
nop
save6_done:
!!*********************************************************************
!! save 7: OTHERWIN = 0, WSTATE.NORMAL=6
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,1,%cwp ! CWP = 1
wrpr %g0,2,%cansave ! CANSAVE = 2
wrpr %g0,4,%canrestore ! CANRESTORE = 0
wrpr %g0,7,%cleanwin ! CLEANWIN = 7
wrpr %g0,0,%otherwin
wrpr %g0,6,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save7:
save %o0,1,%i0 ! effectively x++
brlz %g6,save7_done
nop
add %i7,1,%i7
ba save7
nop
save7_done:
!!*********************************************************************
!! save 8: OTHERWIN = 0, WSTATE.NORMAL=7
!!*********************************************************************
sub %g4,2,%g5
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g5,0,%cleanwin ! CLEANWIN = maxwin-2
wrpr %g0,0,%otherwin
wrpr %g0,7,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save8:
save %o0,1,%i0 ! effectively x++
brlz %g6,save8_done
nop
add %i1,1,%i1
ba save8
nop
save8_done:
!!*********************************************************************
!! save 9: OTHERWIN = 1, WSTATE.OTHER=0
!!*********************************************************************
sub %g4,2,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-2
wrpr %g5,0,%cansave ! CANSAVE = maxwin-2
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save9:
save %o0,1,%i0 ! effectively x++
brlz %g6,save9_done
nop
add %i2,1,%i2
ba save9
nop
save9_done:
!!*********************************************************************
!! save 10: OTHERWIN = 1, WSTATE.OTHER=1
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,2,%cwp ! CWP = 2
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g0,5,%cleanwin ! CLEANWIN = 5
wrpr %g0,1,%otherwin
wrpr %g0,8,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save10:
save %o0,1,%i0 ! effectively x++
brlz %g6,save10_done
nop
add %i3,1,%i3
ba save10
nop
save10_done:
!!*********************************************************************
!! save 11: OTHERWIN = 1, WSTATE.OTHER=2
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,3,%cwp ! CWP = 3
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g0,4,%cleanwin ! CLEANWIN = 4
wrpr %g0,1,%otherwin
wrpr %g0,0x10,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save11:
save %o0,1,%i0 ! effectively x++
brlz %g6,save11_done
nop
add %i4,1,%i4
ba save11
nop
save11_done:
!!*********************************************************************
!! save 12: OTHERWIN = 1, WSTATE.OTHER=3
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,4,%cwp ! CWP = 4
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g0,1,%otherwin
wrpr %g0,0x18,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save12:
save %o0,1,%i0 ! effectively x++
brlz %g6,save12_done
nop
add %i5,1,%i5
ba save12
nop
save12_done:
!!*********************************************************************
!! save 12: OTHERWIN = 1, WSTATE.OTHER=4
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,5,%cwp ! CWP = 5
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g0,7,%cleanwin ! CLEANWIN = 7
wrpr %g0,1,%otherwin
wrpr %g0,0x20,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save13:
save %o0,1,%i0 ! effectively x++
brlz %g6,save13_done
nop
add %i6,1,%i6
ba save13
nop
save13_done:
!!*********************************************************************
!! save 14: OTHERWIN = 1, WSTATE.OTHER=5
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,6,%cwp ! CWP = 6
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,4,%cleanwin ! CLEANWIN = 4
wrpr %g0,1,%otherwin
wrpr %g0,0x29,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save14:
save %o0,1,%i0 ! effectively x++
brlz %g6,save14_done
nop
add %i7,1,%i7
ba save14
nop
save14_done:
!!*********************************************************************
!! save 15: OTHERWIN = 1, WSTATE.OTHER=6
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,1,%cleanwin ! CLEANWIN = 1
wrpr %g0,1,%otherwin
wrpr %g0,0x30,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save15:
save %o0,1,%i0 ! effectively x++
brlz %g6,save15_done
nop
add %i1,1,%i1
ba save15
nop
save15_done:
!!*********************************************************************
!! save 16: OTHERWIN = 1, WSTATE.OTHER=7
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g5,0,%canrestore ! CANRESTORE = maxwin-1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0x3e,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
save16:
save %o0,1,%i0 ! effectively x++
brlz %g6,save16_done
nop
add %i2,1,%i2
ba save16
nop
save16_done:
!!*********************************************************************
!!*********************************************************************
!! restore 0: OTHERWIN = 0, WSTATE.NORMAL=0
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g5,0,%canrestore ! CANRESTORE = maxwin-1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest0:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest0_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest0
nop
rest0_done:
!!*********************************************************************
!! restore 1: OTHERWIN = 0, WSTATE.NORMAL=1
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g0,0,%cleanwin ! CLEANWIN = 0
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest1:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest1_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest1
nop
rest1_done:
!!*********************************************************************
!! restore 2: OTHERWIN = 0, WSTATE.NORMAL=2
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g0,0,%otherwin
wrpr %g0,1,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest2:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest2_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest2
nop
rest2_done:
!!*********************************************************************
!! restore 3: OTHERWIN = 0, WSTATE.NORMAL=3
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,2,%cwp ! CWP = 2
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,3,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest3:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest3_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest3
nop
rest3_done:
!!*********************************************************************
!! restore 4: OTHERWIN = 0, WSTATE.NORMAL=4
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g0,1,%cwp ! CWP = 1
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,4,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest4:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest4_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest4
nop
rest4_done:
!!*********************************************************************
!! restore 5: OTHERWIN = 0, WSTATE.NORMAL=5
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-1
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g0,0,%cleanwin ! CLEANWIN = 0, not checked on restore
wrpr %g0,0,%otherwin
wrpr %g0,5,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest5:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest5_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest5
nop
rest5_done:
!!*********************************************************************
!! restore 6: OTHERWIN = 0, WSTATE.NORMAL=6
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,6,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest6:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest6_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest6
nop
rest6_done:
!!*********************************************************************
!! restore 7: OTHERWIN = 0, WSTATE.NORMAL=7
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin
wrpr %g0,7,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest7:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest7_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest7
nop
rest7_done:
!!*********************************************************************
!! restore 8: OTHERWIN = 1, WSTATE.OTHER=0
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-1
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest8:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest8_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest8
nop
rest8_done:
!!*********************************************************************
!! restore 9: OTHERWIN = 1, WSTATE.OTHER=1
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,3,%cwp ! CWP = 3
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,8,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest9:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest9_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest9
nop
rest9_done:
!!*********************************************************************
!! restore 10: OTHERWIN = 1, WSTATE.OTHER=2
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g5,0,%cwp ! CWP = maxwin-1
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0x10,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest10:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest10_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest10
nop
rest10_done:
!!*********************************************************************
!! restore 11: OTHERWIN = 1, WSTATE.OTHER=3
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,18,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest11:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest11_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest11
nop
rest11_done:
!!*********************************************************************
!! restore 12: OTHERWIN = 1, WSTATE.OTHER=4
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,2,%cwp ! CWP = 2
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g0,1,%otherwin
wrpr %g0,0x25,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest12:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest12_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest12
nop
rest12_done:
!!*********************************************************************
!! restore 13: OTHERWIN = 1, WSTATE.OTHER=5
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,4,%cwp ! CWP = 4
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0x28,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest13:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest13_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest13
nop
rest13_done:
!!*********************************************************************
!! restore 14: OTHERWIN = 1, WSTATE.OTHER=6
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,1,%cansave ! CANSAVE = 1
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0x30,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest14:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest14_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest14
nop
rest14_done:
!!*********************************************************************
!! restore 15: OTHERWIN = 1, WSTATE.OTHER=7
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,3,%cwp ! CWP = 3
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin
wrpr %g0,0x38,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_DONE,%g7
add %g0,TRAP_NOT_TAKEN,%g6
rest15:
restore %i0,1,%o0 ! effectively x++
brlz %g6,rest15_done
nop
add %i3,1,%i3 ! restore, all three regs blocks must match
add %l3,1,%l3
add %o3,1,%o3
ba rest15
nop
rest15_done:
!!*********************************************************************
!!*********************************************************************
!! clean1: cleanwin exception when cleanwin = canrestore = 0
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,0,%canrestore ! CANRESTORE = 0
wrpr %g0,0,%cleanwin ! CLEANWIN = 0
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_RETRY,%g7
clean1:
save %o0,1,%i0 ! effectively x++
add %i2,1,%i2
!!*********************************************************************
!! clean2: cleanwin exception when cleanwin = canrestore = 1
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g0,1,%cleanwin ! CLEANWIN = 1
wrpr %g0,1,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_RETRY,%g7
clean2:
save %o0,1,%i0 ! effectively x++
add %i2,1,%i2
!!*********************************************************************
!! clean3: save when cleanwin < canrestore. This is not architecturally
!! specified. Niagara will not trap.
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,3,%cansave ! CANSAVE = 3
wrpr %g0,2,%canrestore ! CANRESTORE = 2
wrpr %g0,1,%cleanwin ! CLEANWIN = 1
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,FINISH_RETRY,%g7
clean3:
save %o0,1,%i0 ! effectively x++
add %i2,1,%i2
!!*********************************************************************
!! clean4: save when cleanwin = canrestore, and cansave = 0.
!! the spill trap has priority over the cleanwin trap
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,TRAP_NOT_TAKEN,%g6
add %g0,FINISH_DONE,%g7
clean4:
save %o0,1,%i0 ! effectively x++
add %i2,1,%i2
!! trap clean does not use g6, so if g6 has changed, the correct trap
!! was taken. (Yeah, I know, this is not advertised as a self-checking
!! test...)
cmp %g6,TRAP_NOT_TAKEN
bne clean4_ok
nop
ta T_BAD_TRAP
nop
nop
clean4_ok:
!!*********************************************************************
!!*********************************************************************
!! flush1: flush with NWINDOWS-2 = CANSAVE, should be a NOP
!!*********************************************************************
sub %g4,1,%g5
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g5,0,%cansave ! CANSAVE = maxwin-1 (NWINDOWS-2)
wrpr %g0,3,%canrestore ! CANRESTORE = 3
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g0,0,%otherwin
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,TRAP_NOT_TAKEN,%g6
add %g0,FINISH_DONE,%g7
flush1:
flushw
add %i3,1,%i3
cmp %g6,TRAP_NOT_TAKEN
be flush1_ok
nop
ta T_BAD_TRAP
nop
nop
flush1_ok:
!!*********************************************************************
!! flush2: flush with NWINDOWS-2-CANSAVE>0, should take a spill trap
!!*********************************************************************
sub %g4,3,%g5
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g5,0,%cansave ! CANSAVE = maxwin-3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin ! OTHERWIN = 0
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,TRAP_NOT_TAKEN,%g6
add %g0,FINISH_RETRY,%g7
flush2:
flushw
add %i3,1,%i3
cmp %g6,TRAP_TAKEN
be flush2_ok
nop
ta T_BAD_TRAP
nop
nop
flush2_ok:
!!*********************************************************************
!! flush3: flush with NWINDOWS-2<>CANSAVE, should take a spill trap
!!*********************************************************************
sub %g4,3,%g5
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g5,0,%cansave ! CANSAVE = maxwin-3
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,1,%otherwin ! OTHERWIN = 1
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,TRAP_NOT_TAKEN,%g6
add %g0,FINISH_RETRY,%g7
flush3:
flushw
add %i3,1,%i3
cmp %g6,TRAP_TAKEN
be flush3_ok
nop
ta T_BAD_TRAP
nop
nop
flush3_ok:
!!*********************************************************************
!! flush4: flush with NWINDOWS-2<>CANSAVE, should take a spill trap
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g4,0,%cwp ! CWP = maxwin
wrpr %g0,4,%cansave ! CANSAVE = 4
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin
wrpr %g0,0,%otherwin ! OTHERWIN = 0
wrpr %g0,0,%wstate
ta T_CHANGE_NONPRIV
add %g0,TRAP_NOT_TAKEN,%g6
add %g0,FINISH_RETRY,%g7
flush4:
flushw
add %i3,1,%i3
cmp %g6,TRAP_TAKEN
be flush4_ok
nop
ta T_BAD_TRAP
nop
nop
flush4_ok:
!!*********************************************************************
!!*********************************************************************
!! saved/restored cases: all these instructions do is manipulate
!! cansave, canrestore, otherwin, and cleanwin values. No need
!! to actually use them in a trap handler.
!!*********************************************************************
ta T_CHANGE_PRIV
wrpr %g0,0,%cwp ! CWP = 0
wrpr %g0,0,%cansave ! CANSAVE = 0
wrpr %g0,1,%canrestore ! CANRESTORE = 1
wrpr %g0,0,%cleanwin ! CLEANWIN = 0
wrpr %g0,0,%otherwin ! OTHERWIN = 0
wrpr %g0,0,%wstate
! otherwin = 0 cases
saved
restored
saved
saved
saved
saved
saved
saved
saved
saved ! eight in a row
restored
restored
restored
restored
restored
restored
restored
restored ! eight in a row
wrpr %g4,0,%cansave ! CANSAVE = maxwin
wrpr %g4,0,%canrestore ! CANRESTORE = maxwin
wrpr %g0,3,%cleanwin ! CLEANWIN = 3
wrpr %g4,0,%otherwin ! OTHERWIN = maxwin
wrpr %g0,0,%wstate
! otherwin > 0 cases
saved
restored
saved
saved
saved
saved
saved
saved
saved
saved ! eight in a row
wrpr %g4,0,%otherwin ! OTHERWIN = maxwin
restored
restored
restored
restored
restored
restored
restored
restored ! eight in a row
ta T_CHANGE_NONPRIV
good_end:
ta T_GOOD_TRAP
nop
nop
!==========================
.data
.align 0x1fff+1
max_win: .word 0, 0
/***********************************************************************/
//SECTION .CUST_TRAPS TEXT_VA=0x40000000, DATA_VA=0x41000000
//attr_text {
// Name = .CUST_TRAPS,
// RA = 0x40000000,
// PA = ra2pa(0x40000000,0),
// part_0_i_ctx_zero_tsb_config_0,
// TTE_G=1, TTE_Context=0, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0,
// TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=0,
// TTE_E=0, TTE_P=1, TTE_W=1
// }
//attr_data {
// Name = .CUST_TRAPS,
// RA = 0x4100000,
// PA = ra2pa(0x41000000,0),
// part_0_d_ctx_zero_tsb_config_0,
// TTE_G=1, TTE_Context=0, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0,
// TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=0,
// TTE_E=0, TTE_P=1, TTE_W=1
// }
.text
// User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry
// trap_clean DOES NOT modify the user %g6
.global trap_clean
trap_clean:
rdpr %cwp,%g1
rdpr %cansave,%g2
rdpr %canrestore,%g3
rdpr %otherwin,%g4
rdpr %wstate,%g5
rdpr %cleanwin,%g6
wrpr %g0,0,%gl ! go back to GL=0, user global regs
cmp %g7,FINISH_DONE
be clean_done
nop
wrpr %g0,1,%gl ! restore trap global regs
add %g6,1,%g6 ! cleanwin++
wrpr %g6,0,%cleanwin
retry
nop
clean_done:
done
nop
// User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry
// User %g6 lets test loop know that the trap was hit.
.global trap_spill
trap_spill:
rdpr %cwp,%g1
rdpr %cansave,%g2
rdpr %canrestore,%g1
rdpr %otherwin,%g2
rdpr %wstate,%g1
rdpr %cleanwin,%g2
wrpr %g0,0,%gl ! go back to GL=0
add %g0,TRAP_TAKEN,%g6
cmp %g7,FINISH_DONE
be spill_done
nop
saved ! used by flushw test cases
retry
nop
spill_done:
done
nop
// User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry
// User %g6 lets test loop know that the trap was hit.
.global trap_fill
trap_fill:
rdpr %cwp,%g1
rdpr %cansave,%g2
rdpr %canrestore,%g1
rdpr %otherwin,%g2
rdpr %wstate,%g1
rdpr %cleanwin,%g2
wrpr %g0,0,%gl ! go back to GL=0
add %g0,TRAP_TAKEN,%g6
cmp %g7,FINISH_DONE
be fill_done
nop
retry
nop
fill_done:
done
nop
.end
Full OpenSPARC design & verification tarball including full HDL.