powerpc/64s: Add cp_abort after tlbiel to invalidate copy-buffer address

Browse source

The copy buffer is implemented as a real address in the nest which is
translated from EA by copy, and used for memory access by paste. This
requires that it be invalidated by TLB invalidation.

TLBIE does invalidate the copy buffer, but TLBIEL does not. Add
cp_abort to the tlbiel sequence.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Fixup whitespace and comment formatting]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200916030234.4110379-2-npiggin@gmail.com

...

This commit is contained in:

Nicholas Piggin 2020-09-16 13:02:34 +10:00 • committed by Michael Ellerman

parent 9983efa83b

commit 05504b4256

3 changed files with 28 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

19

arch/powerpc/include/asm/synch.h

View file

8

arch/powerpc/mm/book3s64/hash_native.c

View file

12

arch/powerpc/mm/book3s64/radix_tlb.c

View file