powerpc: Allow flush_icache_range to work across ranges >4GB

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When calling flush_icache_range with a size >4GB, we were masking
off the upper 32 bits, so we would incorrectly flush a range smaller
than intended.

This patch replaces the 32 bit shifts with 64 bit ones, so that
the full size is accounted for.

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191104023305.9581-2-alastair@au1.ibm.com

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Alastair D'Silva 2019-11-04 13:32:53 +11:00 • committed by Michael Ellerman

parent d79fbb3a32

commit 29430fae82

1 changed files with 2 additions and 2 deletions

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arch/powerpc/kernel/misc_64.S

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