Messages in this thread Patch in this message | | | From | Feng Tang <> | Subject | [PATCH v2] x86: hpet: Don't default CONFIG_HPET_TIMER to be y for X86_64 | Date | Fri, 28 Mar 2014 10:55:16 +0800 |
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On many new phone/tablet platforms like Baytrail/Merrifield etc, the HPET are either defeatured or has some problem to be used as a reliable timer. As these platforms also have X86_64, we should not make HPET_TIMER default y for all X86_64.
Signed-off-by: Feng Tang <feng.tang@intel.com> --- arch/x86/Kconfig | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0af5250..7f2fb4b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -695,8 +695,7 @@ config X86_CYCLONE_TIMER source "arch/x86/Kconfig.cpu" config HPET_TIMER - def_bool X86_64 - prompt "HPET Timer Support" if X86_32 + prompt "HPET Timer Support" ---help--- Use the IA-PC HPET (High Precision Event Timer) to manage time in preference to the PIT and RTC, if a HPET is @@ -709,9 +708,9 @@ config HPET_TIMER You can safely choose Y here. However, HPET will only be activated if the platform and the BIOS support this feature. - Otherwise the 8254 will be used for timing services. - Choose N to continue using the legacy 8254 timer. + Choose N to use the legacy 8254 timer or the latest + lapic_timer+tsc solution. config HPET_EMULATE_RTC def_bool y -- 1.7.0.4
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