diff options
| author | Len Brown <len.brown@intel.com> | 2016-06-17 05:22:52 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-11 19:30:13 (GMT) |
| commit | ff4c86635ee12461fd3bd911d7d5253394da8f9d (patch) | |
| tree | 46d410019a232f2b0ecc89375d68abcfc27f565e /drivers/ide | |
| parent | aa297292d708e89773b3b2cdcaf33f01bfa095d8 (diff) | |
| download | linux-ff4c86635ee12461fd3bd911d7d5253394da8f9d.tar.xz | |
x86/tsc: Enumerate BXT tsc_khz via CPUID
Hard code the BXT crystal clock (aka ART - Always Running Timer)
to 19.200 MHz, and use CPUID leaf 0x15 to determine the BXT TSC frequency.
Use tsc_khz to sanity check BXT cpu_khz,
which can be erroneous in some configurations.
(I simplified the original patch from Bin Gao.)
Original-From: Bin Gao <bin.gao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/bf4e7c175acd6d09719c47c319b10ff1f0627ff8.1466138954.git.len.brown@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/ide')
0 files changed, 0 insertions, 0 deletions