diff options
Diffstat (limited to 'arch/ppc/kernel/head_4xx.S')
| -rw-r--r-- | arch/ppc/kernel/head_4xx.S | 44 |
1 files changed, 3 insertions, 41 deletions
diff --git a/arch/ppc/kernel/head_4xx.S b/arch/ppc/kernel/head_4xx.S index dd23e90ac8166..6f5d380e23450 100644 --- a/arch/ppc/kernel/head_4xx.S +++ b/arch/ppc/kernel/head_4xx.S @@ -95,24 +95,6 @@ _GLOBAL(crit_r10) .space 4 _GLOBAL(crit_r11) .space 4 -_GLOBAL(crit_sprg0) - .space 4 -_GLOBAL(crit_sprg1) - .space 4 -_GLOBAL(crit_sprg4) - .space 4 -_GLOBAL(crit_sprg5) - .space 4 -_GLOBAL(crit_sprg6) - .space 4 -_GLOBAL(crit_sprg7) - .space 4 -_GLOBAL(crit_pid) - .space 4 -_GLOBAL(crit_srr0) - .space 4 -_GLOBAL(crit_srr1) - .space 4 /* * Exception vector entry code. This code runs with address translation @@ -165,24 +147,6 @@ _GLOBAL(crit_srr1) #define CRITICAL_EXCEPTION_PROLOG \ stw r10,crit_r10@l(0); /* save two registers to work with */\ stw r11,crit_r11@l(0); \ - mfspr r10,SPRN_SPRG0; \ - stw r10,crit_sprg0@l(0); \ - mfspr r10,SPRN_SPRG1; \ - stw r10,crit_sprg1@l(0); \ - mfspr r10,SPRN_SPRG4; \ - stw r10,crit_sprg4@l(0); \ - mfspr r10,SPRN_SPRG5; \ - stw r10,crit_sprg5@l(0); \ - mfspr r10,SPRN_SPRG6; \ - stw r10,crit_sprg6@l(0); \ - mfspr r10,SPRN_SPRG7; \ - stw r10,crit_sprg7@l(0); \ - mfspr r10,SPRN_PID; \ - stw r10,crit_pid@l(0); \ - mfspr r10,SPRN_SRR0; \ - stw r10,crit_srr0@l(0); \ - mfspr r10,SPRN_SRR1; \ - stw r10,crit_srr1@l(0); \ mfcr r10; /* save CR in r10 for now */\ mfspr r11,SPRN_SRR3; /* check whether user or kernel */\ andi. r11,r11,MSR_PR; \ @@ -221,9 +185,6 @@ _GLOBAL(crit_srr1) * r11 saved in crit_r11 and in stack frame, * now phys stack/exception frame pointer * r12 saved in stack frame, now saved SRR2 - * SPRG0,1,4,5,6,7 saved in crit_sprg0,1,4,5,6,7 - * PID saved in crit_pid - * SRR0,1 saved in crit_srr0,1 * CR saved in stack frame, CR0.EQ = !SRR3.PR * LR, DEAR, ESR in stack frame * r1 saved in stack frame, now virt stack/excframe pointer @@ -1030,10 +991,11 @@ _GLOBAL(swapper_pg_dir) /* Stack for handling critical exceptions from kernel mode */ .section .bss -critical_stack_bottom: + .align 12 +exception_stack_bottom: .space 4096 critical_stack_top: - .previous +_GLOBAL(exception_stack_top) /* This space gets a copy of optional info passed to us by the bootstrap * which is used to pass parameters into the kernel like root=/dev/sda1, etc. |