From: l.stach@pengutronix.de (Lucas Stach)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Kconfig: select GENERIC_CLOCKEVENTS_BROADCAST also on UP
Date: Fri, 20 Jan 2017 17:32:30 +0100 [thread overview]
Message-ID: <20170120163230.9357-1-l.stach@pengutronix.de> (raw)
Quite a few systems have deeper idle states where the local timer tick
stops to fire, that rely on the GENERIC_CLOCKEVENTS_BROADCAST
infrastructure to switch to a global (non-stopping) clockevent device.
This is also true on UP systems, so select GENERIC_CLOCKEVENTS_BROADCAST
unconditionally.
Instead only select ARCH_HAS_TICK_BROADCAST if SMP is present, as this
is only implemented for SMP systems.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
v2: Only select GENERIC_CLOCKEVENTS_BROADCAST if the architecture
supports GENERIC_CLOCKEVENTS.
---
arch/arm/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5fab553fd03a..f4b7432554e2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -4,7 +4,7 @@ config ARM
select ARCH_CLOCKSOURCE_DATA
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
- select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST && SMP
select ARCH_HAVE_CUSTOM_GPIO_H
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_MIGHT_HAVE_PC_PARPORT
@@ -20,7 +20,7 @@ config ARM
select EDAC_ATOMIC_SCRUB
select GENERIC_ALLOCATOR
select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
- select GENERIC_CLOCKEVENTS_BROADCAST if SMP
+ select GENERIC_CLOCKEVENTS_BROADCAST if GENERIC_CLOCKEVENTS
select GENERIC_EARLY_IOREMAP
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IRQ_PROBE
--
2.11.0
next reply other threads:[~2017-01-20 16:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-20 16:32 Lucas Stach [this message]
2017-01-30 13:53 ` [PATCH] ARM: Kconfig: select GENERIC_CLOCKEVENTS_BROADCAST also on UP Russell King - ARM Linux
2017-02-07 10:57 ` Russell King - ARM Linux
-- strict thread matches above, loose matches on Subject: below --
2016-07-08 15:58 Lucas Stach
2016-09-16 9:32 ` Lucas Stach
2016-09-16 10:20 ` Russell King - ARM Linux
2016-09-16 10:30 ` Thomas Gleixner
2016-09-16 11:08 ` Lucas Stach
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