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| author | Vladimir Murzin <vladimir.murzin@arm.com> | 2016-04-19 12:35:20 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2016-04-19 19:42:25 +0100 |
| commit | 03f1217e5fafac8eb9e28aa8d04a67b6db1e435b (patch) | |
| tree | f0895cec056814b8b0b3946c1f8b2a78df0291fc /arch | |
| parent | 9c18fcf7ae0ef87f0723dfd74c27d608c7486e0e (diff) | |
| download | linux-03f1217e5fafac8eb9e28aa8d04a67b6db1e435b.tar.bz2 | |
ARM: 8563/1: fix demoting HWCAP_SWP
Commit b8c9592 "ARM: 8318/1: treat CPU feature register fields as signed
quantities" accidentally altered cpuid register used to demote
HWCAP_SWP.
ARM ARM says that SyncPrim_instrs bits in ID_ISAR3 should be used with
SynchPrim_instrs_frac from ID_ISAR4. So, follow this rule.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index a28fce0bdbbe..2c4bea39cf22 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -512,7 +512,7 @@ static void __init elf_hwcap_fixup(void) */ if (cpuid_feature_extract(CPUID_EXT_ISAR3, 12) > 1 || (cpuid_feature_extract(CPUID_EXT_ISAR3, 12) == 1 && - cpuid_feature_extract(CPUID_EXT_ISAR3, 20) >= 3)) + cpuid_feature_extract(CPUID_EXT_ISAR4, 20) >= 3)) elf_hwcap &= ~HWCAP_SWP; } |