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| author | Tony Lindgren <tony@atomide.com> | 2005-06-28 21:01:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-06-28 21:01:16 +0100 |
| commit | f2be64b3b15f52ceb83ff26abc10705a31ae5352 (patch) | |
| tree | cbfe6c419b8c8058b6e7f8fb2d64664e6ba9af31 /arch/arm/Kconfig | |
| parent | 072cd703b6a2a3adc14fbc2d969424c7022a7892 (diff) | |
| download | linux-3.10-f2be64b3b15f52ceb83ff26abc10705a31ae5352.tar.gz linux-3.10-f2be64b3b15f52ceb83ff26abc10705a31ae5352.tar.bz2 linux-3.10-f2be64b3b15f52ceb83ff26abc10705a31ae5352.zip | |
[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/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 5 |
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) |