From 9d3c18a11a930afe65d33527300a42e0872c744d Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Fri, 12 Mar 2021 12:50:12 +0000 Subject: [PATCH] powerpc/40x: Change CRITICAL_EXCEPTION_PROLOG macro to a gas macro Change CRITICAL_EXCEPTION_PROLOG macro to a gas macro to remove the ugly ; and \ on each line. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/73291fb9dc9ec58182c27a40dfc3db204e3f4024.1615552866.git.christophe.leroy@csgroup.eu --- arch/powerpc/kernel/head_40x.S | 71 +++++++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 35 deletions(-) diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index 383238a98f77..9cef423d574b 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -100,42 +100,43 @@ _ENTRY(saved_ksp_limit) * Instead we use a couple of words of memory at low physical addresses. * This is OK since we don't support SMP on these processors. */ -#define CRITICAL_EXCEPTION_PROLOG \ - stw r10,crit_r10@l(0); /* save two registers to work with */\ - stw r11,crit_r11@l(0); \ - mfcr r10; /* save CR in r10 for now */\ - mfspr r11,SPRN_SRR3; /* check whether user or kernel */\ - andi. r11,r11,MSR_PR; \ - lis r11,critirq_ctx@ha; \ - tophys(r11,r11); \ - lwz r11,critirq_ctx@l(r11); \ - beq 1f; \ - /* COMING FROM USER MODE */ \ - mfspr r11,SPRN_SPRG_THREAD; /* if from user, start at top of */\ - lwz r11,TASK_STACK-THREAD(r11); /* this thread's kernel stack */\ -1: addi r11,r11,THREAD_SIZE-INT_FRAME_SIZE; /* Alloc an excpt frm */\ - tophys(r11,r11); \ - stw r10,_CCR(r11); /* save various registers */\ - stw r12,GPR12(r11); \ - stw r9,GPR9(r11); \ - mflr r10; \ - stw r10,_LINK(r11); \ - mfspr r12,SPRN_DEAR; /* save DEAR and ESR in the frame */\ - stw r12,_DEAR(r11); /* since they may have had stuff */\ - mfspr r9,SPRN_ESR; /* in them at the point where the */\ - stw r9,_ESR(r11); /* exception was taken */\ - mfspr r12,SPRN_SRR2; \ - stw r1,GPR1(r11); \ - mfspr r9,SPRN_SRR3; \ - stw r1,0(r11); \ - tovirt(r1,r11); \ - rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\ - stw r0,GPR0(r11); \ - lis r10, STACK_FRAME_REGS_MARKER@ha; /* exception frame marker */\ - addi r10, r10, STACK_FRAME_REGS_MARKER@l; \ - stw r10, 8(r11); \ - SAVE_4GPRS(3, r11); \ +.macro CRITICAL_EXCEPTION_PROLOG + stw r10,crit_r10@l(0) /* save two registers to work with */ + stw r11,crit_r11@l(0) + mfcr r10 /* save CR in r10 for now */ + mfspr r11,SPRN_SRR3 /* check whether user or kernel */ + andi. r11,r11,MSR_PR + lis r11,critirq_ctx@ha + tophys(r11,r11) + lwz r11,critirq_ctx@l(r11) + beq 1f + /* COMING FROM USER MODE */ + mfspr r11,SPRN_SPRG_THREAD /* if from user, start at top of */ + lwz r11,TASK_STACK-THREAD(r11) /* this thread's kernel stack */ +1: addi r11,r11,THREAD_SIZE-INT_FRAME_SIZE /* Alloc an excpt frm */ + tophys(r11,r11) + stw r10,_CCR(r11) /* save various registers */ + stw r12,GPR12(r11) + stw r9,GPR9(r11) + mflr r10 + stw r10,_LINK(r11) + mfspr r12,SPRN_DEAR /* save DEAR and ESR in the frame */ + stw r12,_DEAR(r11) /* since they may have had stuff */ + mfspr r9,SPRN_ESR /* in them at the point where the */ + stw r9,_ESR(r11) /* exception was taken */ + mfspr r12,SPRN_SRR2 + stw r1,GPR1(r11) + mfspr r9,SPRN_SRR3 + stw r1,0(r11) + tovirt(r1,r11) + rlwinm r9,r9,0,14,12 /* clear MSR_WE (necessary?) */ + stw r0,GPR0(r11) + lis r10, STACK_FRAME_REGS_MARKER@ha /* exception frame marker */ + addi r10, r10, STACK_FRAME_REGS_MARKER@l + stw r10, 8(r11) + SAVE_4GPRS(3, r11) SAVE_2GPRS(7, r11) +.endm /* * State at this point: -- 2.11.0