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arm64: topology: Drop the useless update to per-cpu cycles

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The previous call to update_freq_counters_refs() has already updated the
per-cpu variables, don't overwrite them with the same value again.

Fixes: 4b9cf23c17 ("arm64: wrap and generalise counter read functions")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Ionela Voinescu <ionela.voinescu@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/7a171f710cdc0f808a2bfbd7db839c0d265527e7.1607579234.git.viresh.kumar@linaro.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Viresh Kumar 2020-12-10 11:17:40 +05:30 committed by Catalin Marinas
parent d889797530
commit 51550a4836
1 changed files with 1 additions and 5 deletions
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6
arch/arm64/kernel/topology.c
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@ -304,7 +304,7 @@ void topology_scale_freq_tick(void)
if (unlikely(core_cnt <= prev_core_cnt || if (unlikely(core_cnt <= prev_core_cnt ||
const_cnt <= prev_const_cnt)) const_cnt <= prev_const_cnt))
goto store_and_exit; return;
/* /*
* /\core arch_max_freq_scale * /\core arch_max_freq_scale
@ -321,10 +321,6 @@ void topology_scale_freq_tick(void)
scale = min_t(unsigned long, scale, SCHED_CAPACITY_SCALE); scale = min_t(unsigned long, scale, SCHED_CAPACITY_SCALE);
this_cpu_write(freq_scale, (unsigned long)scale); this_cpu_write(freq_scale, (unsigned long)scale);
store_and_exit:
this_cpu_write(arch_core_cycles_prev, core_cnt);
this_cpu_write(arch_const_cycles_prev, const_cnt);
} }
#ifdef CONFIG_ACPI_CPPC_LIB #ifdef CONFIG_ACPI_CPPC_LIB