nios2: Use an invalid TLB entry address helper function

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There is no need for complicated calculation for an invalid address
that maps to the same TLB index as the entry to be invalidated. Using
the TLB address plus the two top bits set puts the address into the
kernel TLB bypass range and still maps to the same cache line.

This is also a bug fix for flush_tlb_pid, which is currently unused,
but does not set PTEADDR to invalid.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

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Nicholas Piggin 2018-11-05 10:35:12 +08:00 • committed by Ley Foon Tan

parent 0b5754b986

commit 3437d3c886

1 changed files with 33 additions and 35 deletions

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68

arch/nios2/mm/tlb.c

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