diff options
Diffstat (limited to 'arch/sparc64')
| -rw-r--r-- | arch/sparc64/kernel/entry.S | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 88332f00094a..6d0476ff4ff8 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -690,11 +690,6 @@ netbsd_syscall: retl nop - /* These next few routines must be sure to clear the - * SFSR FaultValid bit so that the fast tlb data protection - * handler does not flush the wrong context and lock up the - * box. - */ .globl __do_data_access_exception .globl __do_data_access_exception_tl1 __do_data_access_exception_tl1: @@ -733,9 +728,8 @@ __do_instruction_access_exception_tl1: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR + ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR + rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit membar #Sync sethi %hi(109f), %g7 @@ -752,9 +746,8 @@ __do_instruction_access_exception: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR + ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR + rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit membar #Sync sethi %hi(109f), %g7 |