diff options
Diffstat (limited to 'arch/arc/mm/tlbex.S')
| -rw-r--r-- | arch/arc/mm/tlbex.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S index 88897a112d55..cf7d7d9ad695 100644 --- a/arch/arc/mm/tlbex.S +++ b/arch/arc/mm/tlbex.S @@ -140,12 +140,15 @@ ex_saved_reg1: GET_CURR_TASK_ON_CPU r3 ld r0, [r3, TASK_ACT_MM] ld r0, [r0, MM_CTXT+MM_CTXT_ASID] + breq r0, 0, 55f ; Error if no ASID allocated lr r1, [ARC_REG_PID] and r1, r1, 0xFF - breq r1, r0, 5f + and r2, r0, 0xFF ; MMU PID bits only for comparison + breq r1, r2, 5f +55: ; Error if H/w and S/w ASID don't match, but NOT if in kernel mode lr r2, [erstatus] bbit0 r2, STATUS_U_BIT, 5f |