OpenCloudOS-Kernel/arch/x86/platform
Bin Gao f3a02ecebe x86/tsc: Set TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Atom SoCs
TSC on Intel Atom SoCs capable of determining TSC frequency by MSR is
reliable and the frequency is known (provided by HW).

On these platforms PIT/HPET is generally not available so calibration won't
work at all and there is no other clocksource to act as a watchdog for the
TSC, so we have no other choice than to trust it.

Set both X86_FEATURE_TSC_KNOWN_FREQ and X86_FEATURE_TSC_RELIABLE flags to
make sure the calibration is skipped and no watchdog is required.

Signed-off-by: Bin Gao <bin.gao@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1479241644-234277-5-git-send-email-bin.gao@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-11-18 10:58:31 +01:00
..
atom x86/cpu: Rename Merrifield2 to Moorefield 2016-09-08 08:13:08 +02:00
ce4100 x86/ce4100: Remove duplicated include from ce4100.c 2016-07-19 16:02:17 +02:00
efi Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 16:46:53 -07:00
geode x86/platform: Make platform/geode/net5501.c explicitly non-modular 2016-02-16 09:11:09 +01:00
goldfish goldfish: platform device for x86 2013-01-21 12:09:19 -08:00
intel x86/platform/iosf_mbi: Add Intel Tangier PCI id 2015-07-16 17:48:48 +02:00
intel-mid x86/tsc: Set TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Atom SoCs 2016-11-18 10:58:31 +01:00
intel-quark x86/platform/intel/quark: Drop IMR lock bit support 2016-02-23 07:37:23 +01:00
iris x86: platform: iris: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
mellanox x86/platform/mellanox: Fix return value check in mlxplat_init() 2016-09-24 21:05:25 +02:00
olpc x86/platform: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:59 +02:00
scx200 X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
sfi x86: Cleanup irq_domain ops 2015-04-24 15:36:55 +02:00
ts5500 x86/platform: Delete extraneous MODULE_* tags fromm ts5500 2016-07-16 22:41:00 +02:00
uv x86/platform/UV: Fix support for EFI_OLD_MEMMAP after BIOS callback updates 2016-10-20 08:47:58 +02:00
Makefile x86/platform/mellanox: Introduce support for Mellanox systems platform 2016-09-22 22:13:10 +02:00