diff options
| author | Will Deacon <will.deacon@arm.com> | 2012-08-10 19:13:36 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-09-12 03:36:57 +0100 |
| commit | 8786ed5f8a0dbd6fea585ce69fdd9b840388e458 (patch) | |
| tree | ff2a9798a1c74ea616a461fca8e9f90aca585563 /include | |
| parent | 775152296f2a750ebefc58d35fe0479a679f6797 (diff) | |
ARM: 7489/1: errata: fix workaround for erratum #720789 on UP systems
commit 730a8128cd8978467eb1cf546b11014acb57d433 upstream.
Commit 5a783cbc4836 ("ARM: 7478/1: errata: extend workaround for erratum
#720789") added workarounds for erratum #720789 to the range TLB
invalidation functions with the observation that the erratum only
affects SMP platforms. However, when running an SMP_ON_UP kernel on a
uniprocessor platform we must take care to preserve the ASID as the
workaround is not required.
This patch ensures that we don't set the ASID to 0 when flushing the TLB
on such a system, preserving the original behaviour with the workaround
disabled.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions