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authorTony Lindgren <tony@atomide.com>2005-06-28 16:01:16 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-06-28 16:01:16 -0400
commitf2be64b3b15f52ceb83ff26abc10705a31ae5352 (patch)
treecbfe6c419b8c8058b6e7f8fb2d64664e6ba9af31 /arch/arm
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c8d94dcd8ef7..620f2ca94ed2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -361,6 +361,11 @@ config NO_IDLE_HZ
361 Alternatively, if you want dynamic tick automatically enabled 361 Alternatively, if you want dynamic tick automatically enabled
362 during boot, pass "dyntick=enable" via the kernel command string. 362 during boot, pass "dyntick=enable" via the kernel command string.
363 363
364 Please note that dynamic tick may affect the accuracy of
365 timekeeping on some platforms depending on the implementation.
366 Currently at least OMAP platform is known to have accurate
367 timekeeping with dynamic tick.
368
364config ARCH_DISCONTIGMEM_ENABLE 369config ARCH_DISCONTIGMEM_ENABLE
365 bool 370 bool
366 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM) 371 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)