x86/tsr: Fix tsc frequency enumeration bug on Lightning Mountain SoC
authorDilip Kota <eswara.kota@linux.intel.com>
Mon, 3 Aug 2020 07:56:36 +0000 (15:56 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 21 Aug 2020 11:07:39 +0000 (13:07 +0200)
commit55f60f18ed6c8bb4d26619d65e892cb64daca4e8
tree6f251c3cce283c53cacc884f18332db7d1a098fc
parent2f3292325816d0cba5988916357751d91a194660
x86/tsr: Fix tsc frequency enumeration bug on Lightning Mountain SoC

[ Upstream commit 7d98585860d845e36ee612832a5ff021f201dbaf ]

Frequency descriptor of Lightning Mountain SoC doesn't have all the
frequency entries so resulting in the below failure causing a kernel hang:

    Error MSR_FSB_FREQ index 15 is unknown
    tsc: Fast TSC calibration failed

So, add all the frequency entries in the Lightning Mountain SoC frequency
descriptor.

Fixes: 0cc5359d8fd45 ("x86/cpu: Update init data for new Airmont CPU model")
Fixes: 812c2d7506fd ("x86/tsc_msr: Use named struct initializers")
Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/211c643ae217604b46cbec43a2c0423946dc7d2d.1596440057.git.eswara.kota@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/x86/kernel/tsc_msr.c