mirror of https://gitee.com/openkylin/linux.git
x86/tsc: Print tsc_khz, when it differs from cpu_khz
If CPU and TSC frequency are the same the printout of the CPU frequency is valid for the TSC as well: tsc: Detected 2900.000 MHz processor If the TSC frequency is different there is no information in dmesg. Add a conditional printout: tsc: Detected 2904.000 MHz TSC Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: peterz@infradead.org Link: https://lkml.kernel.org/r/537b342debcd8e8aebc8d631015dcdf9f9ba8a26.1513920414.git.len.brown@intel.com
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@ -1316,6 +1316,12 @@ void __init tsc_init(void)
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(unsigned long)cpu_khz / 1000,
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(unsigned long)cpu_khz % 1000);
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if (cpu_khz != tsc_khz) {
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pr_info("Detected %lu.%03lu MHz TSC",
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(unsigned long)tsc_khz / 1000,
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(unsigned long)tsc_khz % 1000);
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}
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/* Sanitize TSC ADJUST before cyc2ns gets initialized */
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tsc_store_and_check_tsc_adjust(true);
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