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authorTony Lindgren <tony@atomide.com>2005-06-28 21:01:16 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-06-28 21:01:16 +0100
commitf2be64b3b15f52ceb83ff26abc10705a31ae5352 (patch)
treecbfe6c419b8c8058b6e7f8fb2d64664e6ba9af31
parent072cd703b6a2a3adc14fbc2d969424c7022a7892 (diff)
[PATCH] ARM: 2760/1: Add a warning on dynamic tick timekeeping on some platforms
Patch from Tony Lindgren This patch was suggested by RMK, and adds a warning on the accuracy of timekeeping when using dynamic tick on some platforms. Depending on the timer implementation, dynamic tick may affect the accuracy of timekeeping. Currently at least OMAP is known to have accurate timekeeping with dynamic tick. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c8d94dcd8ef..620f2ca94ed 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -361,6 +361,11 @@ config NO_IDLE_HZ
Alternatively, if you want dynamic tick automatically enabled
during boot, pass "dyntick=enable" via the kernel command string.
+ Please note that dynamic tick may affect the accuracy of
+ timekeeping on some platforms depending on the implementation.
+ Currently at least OMAP platform is known to have accurate
+ timekeeping with dynamic tick.
+
config ARCH_DISCONTIGMEM_ENABLE
bool
default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)