Re: [PATCH 1/2] clocksource: arm_arch_timer: Simplify and fix count reader code logic
From: Marc Zyngier
Date: Mon Aug 17 2020 - 08:52:18 EST
On 2020-08-17 13:24, Keqian Zhu wrote:
In commit 0ea415390cd3 (clocksource/arm_arch_timer: Use
arch_timer_read_counter
to access stable counters), we separate stable and normal count reader.
Actually
the stable reader can correctly lead us to normal reader if we has no
workaround.
Resulting in an unnecessary overhead on non-broken systems that can run
without CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND. Not happening.
Besides, in erratum_set_next_event_tval_generic(), we use normal
reader, it is
obviously wrong, so just revert this commit to solve this problem by
the way.
If you want to fix something, post a patch that does exactly that.
M.
--
Jazz is not dead. It just smells funny...