diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-06-04 14:54:12 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-25 00:07:10 +1000 |
| commit | 10e9252f043ecda0dad7cde6ef87db5d10dff2c7 (patch) | |
| tree | 0ef590faf9a3bc398ed2bb4230342cb8110aa9b7 /arch/powerpc/kernel | |
| parent | 56afad885228902d090558a0b1cf75e9809e831d (diff) | |
powerpc/32: Interchange r10 and r12 in SYSCALL_ENTRY on non booke
To better match booke version of SYSCALL_ENTRY macro, interchange
r10 and r12 in the non booke version.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5ab3a517bc883a2fc905fb2cb5ee9344f37b2cfa.1622818435.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index a8221ddcbd66..1e55bc054659 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -142,42 +142,42 @@ _ASM_NOKPROBE_SYMBOL(\name\()_virt) .macro SYSCALL_ENTRY trapno mfspr r9, SPRN_SRR1 - mfspr r10, SPRN_SRR0 + mfspr r12, SPRN_SRR0 LOAD_REG_IMMEDIATE(r11, MSR_KERNEL) /* can take exceptions */ - lis r12, 1f@h - ori r12, r12, 1f@l + lis r10, 1f@h + ori r10, r10, 1f@l mtspr SPRN_SRR1, r11 - mtspr SPRN_SRR0, r12 - mfspr r12,SPRN_SPRG_THREAD + mtspr SPRN_SRR0, r10 + mfspr r10,SPRN_SPRG_THREAD mr r11, r1 - lwz r1,TASK_STACK-THREAD(r12) - tovirt(r12, r12) + lwz r1,TASK_STACK-THREAD(r10) + tovirt(r10, r10) addi r1, r1, THREAD_SIZE - INT_FRAME_SIZE rfi 1: stw r11,GPR1(r1) stw r11,0(r1) mr r11, r1 - stw r10,_NIP(r11) - mflr r10 - stw r10, _LINK(r11) - mfcr r10 - rlwinm r10,r10,0,4,2 /* Clear SO bit in CR */ - stw r10,_CCR(r11) /* save registers */ + stw r12,_NIP(r11) + mflr r12 + stw r12, _LINK(r11) + mfcr r12 + rlwinm r12,r12,0,4,2 /* Clear SO bit in CR */ + stw r12,_CCR(r11) /* save registers */ #ifdef CONFIG_40x rlwinm r9,r9,0,14,12 /* clear MSR_WE (necessary?) */ #endif - lis r10,STACK_FRAME_REGS_MARKER@ha /* exception frame marker */ + lis r12,STACK_FRAME_REGS_MARKER@ha /* exception frame marker */ stw r2,GPR2(r11) - addi r10,r10,STACK_FRAME_REGS_MARKER@l + addi r12,r12,STACK_FRAME_REGS_MARKER@l stw r9,_MSR(r11) li r2, \trapno - stw r10,8(r11) + stw r12,8(r11) stw r2,_TRAP(r11) SAVE_GPR(0, r11) SAVE_4GPRS(3, r11) SAVE_2GPRS(7, r11) - addi r2,r12,-THREAD + addi r2,r10,-THREAD b transfer_to_syscall /* jump to handler */ .endm |