[PATCHv3 03/10] ARM: smp_twd: Divorce smp_twd from local timer API
From: mark.rutland@arm.com (Mark Rutland)
Date: 2013-03-28 15:23:15
Also in:
linux-arm-msm, lkml
This works on my A9x4 coretile, bringing CPUs up and down via /sys/devices/system/cpu/*/online, so: Tested-by: Mark Rutland <mark.rutland@arm.com> Otherwise, is there any reason we couldn't now use the twd driver on a UP system? Or would the overhead of handling frequency change make this pointless? On Wed, Mar 13, 2013 at 06:17:49PM +0000, Stephen Boyd wrote:
quoted hunk ↗ jump to hunk
Separate the smp_twd timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Cc: Russell King <redacted> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Stephen Boyd <redacted> --- Changes since v2: * Fix booting on qemu and omap arch/arm/Kconfig | 2 +- arch/arm/kernel/smp_twd.c | 64 +++++++++++++++++++++++++++++++---------------- 2 files changed, 44 insertions(+), 22 deletions(-)diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5b71469..5ad2ccf 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig@@ -1527,6 +1527,7 @@ config SMP depends on HAVE_SMP depends on MMU select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP + select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Could you not depend on your "Push selects for TWD/SCU into machine entries" for this? Mark.