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| author | Bo Yan <[email protected]> | 2015-03-31 20:30:48 +0000 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2015-04-01 10:12:03 +0000 |
| commit | 6d1966dfd6e0ad2f8aa4b664ae1a62e33abe1998 (patch) | |
| tree | 3b3614dd3e76d608abb56fa9bf781c437f18b66b /lib/string_helpers.c | |
| parent | arm64: errata: add workaround for cortex-a53 erratum #845719 (diff) | |
| download | kernel-6d1966dfd6e0ad2f8aa4b664ae1a62e33abe1998.tar.gz kernel-6d1966dfd6e0ad2f8aa4b664ae1a62e33abe1998.zip | |
arm64: fix midr range for Cortex-A57 erratum 832075
Register MIDR_EL1 is masked to get variant and revision fields, then
compared against midr_range_min and midr_range_max when checking
whether CPU is affected by any particular erratum. However, variant
and revision fields in MIDR_EL1 are separated by 16 bits, so the min
and max of midr range should be constructed accordingly, otherwise
the patch will not be applied when variant field is non-0.
Cc: [email protected] # 3.19+
Acked-by: Andre Przywara <[email protected]>
Reviewed-by: Paul Walmsley <[email protected]>
Signed-off-by: Bo Yan <[email protected]>
[will: use MIDR_VARIANT_SHIFT to construct upper bound]
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions