diff options
Diffstat (limited to 'arch/powerpc/kernel/head_32.h')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 910f86642eec..88b02bd91e8e 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -63,10 +63,14 @@ mtspr SPRN_DAR, r11 /* Tag DAR, to be used in DTLB Error */ .endif #endif - LOAD_REG_IMMEDIATE(r11, MSR_KERNEL & ~(MSR_IR | MSR_RI)) /* can take DTLB miss */ - mtmsr r11 - isync + LOAD_REG_IMMEDIATE(r11, MSR_KERNEL & ~MSR_RI) /* re-enable MMU */ + mtspr SPRN_SRR1, r11 + lis r11, 1f@h + ori r11, r11, 1f@l + mtspr SPRN_SRR0, r11 mfspr r11, SPRN_SPRG_SCRATCH2 + rfi +1: stw r11,GPR1(r1) stw r11,0(r1) mr r11, r1 @@ -94,7 +98,7 @@ #elif defined(CONFIG_PPC_8xx) mtspr SPRN_EID, r2 /* Set MSR_RI */ #else - li r10, MSR_KERNEL & ~MSR_IR /* can take exceptions */ + li r10, MSR_KERNEL /* can take exceptions */ mtmsr r10 /* (except for mach check in rtas) */ #endif stw r0,GPR0(r11) @@ -179,7 +183,6 @@ label: #define EXC_XFER_TEMPLATE(hdlr, trap, msr, tfer, ret) \ li r10,trap; \ stw r10,_TRAP(r11); \ - LOAD_REG_IMMEDIATE(r10, msr); \ bl tfer; \ .long hdlr; \ .long ret |