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>
This commit is contained in:
parent
9c18fcf7ae
commit
03f1217e5f
|
@ -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;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue