[ARM] dyntick: Remove obsolete and unused ARM dyntick support

dyntick is superseded by the clocksource/clockevent infrastructure,
using the NO_HZ configuration option.  No one implements dyntick on
ARM anymore, so it's pointless keeping it around.  Remove dyntick
support.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b786e68..167824e 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -703,27 +703,6 @@ config PREEMPT
          Say Y here if you are building a kernel for a desktop, embedded
          or real-time system.  Say N if you are unsure.
 
-config NO_IDLE_HZ
-       bool "Dynamic tick timer"
-       depends on !GENERIC_CLOCKEVENTS
-       help
-         Select this option if you want to disable continuous timer ticks
-         and have them programmed to occur as required. This option saves
-         power as the system can remain in idle state for longer.
-
-         By default dynamic tick is disabled during the boot, and can be
-         manually enabled with:
-
-           echo 1 > /sys/devices/system/timer/timer0/dyn_tick
-
-         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, PXA2xx and SA11x0 platforms are known
-         to have accurate timekeeping with dynamic tick.
-
 config HZ
        int
        default 128 if ARCH_L7200

diff --git a/arch/arm/configs/at91cap9adk_defconfig b/arch/arm/configs/at91cap9adk_defconfig
index e32e736..b8e73e9 100644 (file)
--- a/arch/arm/configs/at91cap9adk_defconfig
+++ b/arch/arm/configs/at91cap9adk_defconfig
@@ -213,7 +213,6 @@ CONFIG_CPU_CP15_MMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y

diff --git a/arch/arm/configs/at91rm9200dk_defconfig b/arch/arm/configs/at91rm9200dk_defconfig
index 2dbbbc3..868fb7b 100644 (file)
--- a/arch/arm/configs/at91rm9200dk_defconfig
+++ b/arch/arm/configs/at91rm9200dk_defconfig
@@ -169,7 +169,6 @@ CONFIG_AT91_CF=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y

diff --git a/arch/arm/configs/at91rm9200ek_defconfig b/arch/arm/configs/at91rm9200ek_defconfig
index 6e994f7..de43fc6 100644 (file)
--- a/arch/arm/configs/at91rm9200ek_defconfig
+++ b/arch/arm/configs/at91rm9200ek_defconfig
@@ -160,7 +160,6 @@ CONFIG_ISA_DMA_API=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y

diff --git a/arch/arm/configs/at91sam9260ek_defconfig b/arch/arm/configs/at91sam9260ek_defconfig
index f659c93..2011adf 100644 (file)
--- a/arch/arm/configs/at91sam9260ek_defconfig
+++ b/arch/arm/configs/at91sam9260ek_defconfig
@@ -220,7 +220,6 @@ CONFIG_CPU_CP15_MMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/at91sam9261ek_defconfig b/arch/arm/configs/at91sam9261ek_defconfig
index 3802e85..4049768 100644 (file)
--- a/arch/arm/configs/at91sam9261ek_defconfig
+++ b/arch/arm/configs/at91sam9261ek_defconfig
@@ -213,7 +213,6 @@ CONFIG_CPU_CP15_MMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/at91sam9263ek_defconfig b/arch/arm/configs/at91sam9263ek_defconfig
index 32a0d74..fa1c5ae 100644 (file)
--- a/arch/arm/configs/at91sam9263ek_defconfig
+++ b/arch/arm/configs/at91sam9263ek_defconfig
@@ -213,7 +213,6 @@ CONFIG_CPU_CP15_MMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/at91sam9rlek_defconfig b/arch/arm/configs/at91sam9rlek_defconfig
index 98e6746..d8ec5f9 100644 (file)
--- a/arch/arm/configs/at91sam9rlek_defconfig
+++ b/arch/arm/configs/at91sam9rlek_defconfig
@@ -211,7 +211,6 @@ CONFIG_CPU_CP15_MMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/ateb9200_defconfig b/arch/arm/configs/ateb9200_defconfig
index d846a49..85c80f7 100644 (file)
--- a/arch/arm/configs/ateb9200_defconfig
+++ b/arch/arm/configs/ateb9200_defconfig
@@ -171,7 +171,6 @@ CONFIG_AT91_CF=m
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-CONFIG_NO_IDLE_HZ=y
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/cm_x270_defconfig b/arch/arm/configs/cm_x270_defconfig
index 5cab083..33b201c 100644 (file)
--- a/arch/arm/configs/cm_x270_defconfig
+++ b/arch/arm/configs/cm_x270_defconfig
@@ -194,7 +194,6 @@ CONFIG_PCI_HOST_ITE8152=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/collie_defconfig b/arch/arm/configs/collie_defconfig
index 4264e27..f7622e6 100644 (file)
--- a/arch/arm/configs/collie_defconfig
+++ b/arch/arm/configs/collie_defconfig
@@ -166,7 +166,6 @@ CONFIG_PCMCIA_SA1100=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 CONFIG_ARCH_DISCONTIGMEM_ENABLE=y

diff --git a/arch/arm/configs/corgi_defconfig b/arch/arm/configs/corgi_defconfig
index e8980a9..9b8748a 100644 (file)
--- a/arch/arm/configs/corgi_defconfig
+++ b/arch/arm/configs/corgi_defconfig
@@ -165,7 +165,6 @@ CONFIG_PCMCIA_PXA2XX=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y

diff --git a/arch/arm/configs/ecbat91_defconfig b/arch/arm/configs/ecbat91_defconfig
index 90ed214..cfeb817 100644 (file)
--- a/arch/arm/configs/ecbat91_defconfig
+++ b/arch/arm/configs/ecbat91_defconfig
@@ -230,7 +230,6 @@ CONFIG_AT91_CF=y
 #
 # CONFIG_TICK_ONESHOT is not set
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/em_x270_defconfig b/arch/arm/configs/em_x270_defconfig
index 6bea090..d3114c2 100644 (file)
--- a/arch/arm/configs/em_x270_defconfig
+++ b/arch/arm/configs/em_x270_defconfig
@@ -197,7 +197,6 @@ CONFIG_XSCALE_PMU=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y

diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig
index 24a701a..21aa013 100644 (file)
--- a/arch/arm/configs/ep93xx_defconfig
+++ b/arch/arm/configs/ep93xx_defconfig
@@ -184,7 +184,6 @@ CONFIG_ARM_AMBA=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/eseries_pxa_defconfig b/arch/arm/configs/eseries_pxa_defconfig
index ed487b9..493ecee 100644 (file)
--- a/arch/arm/configs/eseries_pxa_defconfig
+++ b/arch/arm/configs/eseries_pxa_defconfig
@@ -251,7 +251,6 @@ CONFIG_PCMCIA_PXA2XX=m
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y

diff --git a/arch/arm/configs/iop13xx_defconfig b/arch/arm/configs/iop13xx_defconfig
index 988b4d1..482e570 100644 (file)
--- a/arch/arm/configs/iop13xx_defconfig
+++ b/arch/arm/configs/iop13xx_defconfig
@@ -197,7 +197,6 @@ CONFIG_PCI_LEGACY=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/iop32x_defconfig b/arch/arm/configs/iop32x_defconfig
index 83f40d4..8612f58 100644 (file)
--- a/arch/arm/configs/iop32x_defconfig
+++ b/arch/arm/configs/iop32x_defconfig
@@ -201,7 +201,6 @@ CONFIG_PCI_LEGACY=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/iop33x_defconfig b/arch/arm/configs/iop33x_defconfig
index 917afb5..8b0098d 100644 (file)
--- a/arch/arm/configs/iop33x_defconfig
+++ b/arch/arm/configs/iop33x_defconfig
@@ -197,7 +197,6 @@ CONFIG_PCI_LEGACY=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/ixp2000_defconfig b/arch/arm/configs/ixp2000_defconfig
index f8f9793..84680db 100644 (file)
--- a/arch/arm/configs/ixp2000_defconfig
+++ b/arch/arm/configs/ixp2000_defconfig
@@ -184,7 +184,6 @@ CONFIG_PCI=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/ixp23xx_defconfig b/arch/arm/configs/ixp23xx_defconfig
index 27cf022..4a2f7b2 100644 (file)
--- a/arch/arm/configs/ixp23xx_defconfig
+++ b/arch/arm/configs/ixp23xx_defconfig
@@ -180,7 +180,6 @@ CONFIG_PCI=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/kafa_defconfig b/arch/arm/configs/kafa_defconfig
index ae51a40..6dd95a2 100644 (file)
--- a/arch/arm/configs/kafa_defconfig
+++ b/arch/arm/configs/kafa_defconfig
@@ -162,7 +162,6 @@ CONFIG_CPU_TLB_V4WBI=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/kb9202_defconfig b/arch/arm/configs/kb9202_defconfig
index c16537d..8e74c66 100644 (file)
--- a/arch/arm/configs/kb9202_defconfig
+++ b/arch/arm/configs/kb9202_defconfig
@@ -126,7 +126,6 @@ CONFIG_ISA_DMA_API=y
 #
 # Kernel Features
 #
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y

diff --git a/arch/arm/configs/ks8695_defconfig b/arch/arm/configs/ks8695_defconfig
index 8ab21a0..6077f2c 100644 (file)
--- a/arch/arm/configs/ks8695_defconfig
+++ b/arch/arm/configs/ks8695_defconfig
@@ -174,7 +174,6 @@ CONFIG_PCCARD_NONSTATIC=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/lpd270_defconfig b/arch/arm/configs/lpd270_defconfig
index a3bf583..1a38d8e 100644 (file)
--- a/arch/arm/configs/lpd270_defconfig
+++ b/arch/arm/configs/lpd270_defconfig
@@ -173,7 +173,6 @@ CONFIG_XSCALE_PMU=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/lpd7a404_defconfig b/arch/arm/configs/lpd7a404_defconfig
index 46a0f7f..7a2e932 100644 (file)
--- a/arch/arm/configs/lpd7a404_defconfig
+++ b/arch/arm/configs/lpd7a404_defconfig
@@ -148,7 +148,6 @@ CONFIG_ARM_AMBA=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_AEABI is not set
 CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_SELECT_MEMORY_MODEL=y

diff --git a/arch/arm/configs/netx_defconfig b/arch/arm/configs/netx_defconfig
index 57f32f3..0884f23 100644 (file)
--- a/arch/arm/configs/netx_defconfig
+++ b/arch/arm/configs/netx_defconfig
@@ -154,7 +154,6 @@ CONFIG_ARM_AMBA=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/onearm_defconfig b/arch/arm/configs/onearm_defconfig
index 650a248..418ca2f 100644 (file)
--- a/arch/arm/configs/onearm_defconfig
+++ b/arch/arm/configs/onearm_defconfig
@@ -202,7 +202,6 @@ CONFIG_AT91_CF=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/picotux200_defconfig b/arch/arm/configs/picotux200_defconfig
index 95a22f5..14826f0 100644 (file)
--- a/arch/arm/configs/picotux200_defconfig
+++ b/arch/arm/configs/picotux200_defconfig
@@ -201,7 +201,6 @@ CONFIG_ARM_THUMB=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-CONFIG_NO_IDLE_HZ=y
 CONFIG_HZ=100
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y

diff --git a/arch/arm/configs/pnx4008_defconfig b/arch/arm/configs/pnx4008_defconfig
index b5e11aa..811b8f6 100644 (file)
--- a/arch/arm/configs/pnx4008_defconfig
+++ b/arch/arm/configs/pnx4008_defconfig
@@ -151,7 +151,6 @@ CONFIG_ARM_THUMB=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/realview-smp_defconfig b/arch/arm/configs/realview-smp_defconfig
index fc39ba1..0c09b23 100644 (file)
--- a/arch/arm/configs/realview-smp_defconfig
+++ b/arch/arm/configs/realview-smp_defconfig
@@ -177,7 +177,6 @@ CONFIG_NR_CPUS=4
 CONFIG_HOTPLUG_CPU=y
 CONFIG_LOCAL_TIMERS=y
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/realview_defconfig b/arch/arm/configs/realview_defconfig
index accbf52..907e543 100644 (file)
--- a/arch/arm/configs/realview_defconfig
+++ b/arch/arm/configs/realview_defconfig
@@ -126,7 +126,6 @@ CONFIG_ISA_DMA_API=y
 #
 # Kernel Features
 #
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y

diff --git a/arch/arm/configs/rpc_defconfig b/arch/arm/configs/rpc_defconfig
index 5ddecb9..f62d181 100644 (file)
--- a/arch/arm/configs/rpc_defconfig
+++ b/arch/arm/configs/rpc_defconfig
@@ -190,7 +190,6 @@ CONFIG_ISA_DMA_API=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig
index f8a1645..6d03763 100644 (file)
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -246,7 +246,6 @@ CONFIG_ISA=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=200
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/sam9_l9260_defconfig b/arch/arm/configs/sam9_l9260_defconfig
index 484dc97..8688362 100644 (file)
--- a/arch/arm/configs/sam9_l9260_defconfig
+++ b/arch/arm/configs/sam9_l9260_defconfig
@@ -211,7 +211,6 @@ CONFIG_ARM_THUMB=y
 #
 # CONFIG_TICK_ONESHOT is not set
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig
index aa7a011..7d59fb1 100644 (file)
--- a/arch/arm/configs/spitz_defconfig
+++ b/arch/arm/configs/spitz_defconfig
@@ -164,7 +164,6 @@ CONFIG_PCMCIA_PXA2XX=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y

diff --git a/arch/arm/configs/tct_hammer_defconfig b/arch/arm/configs/tct_hammer_defconfig
index 576b833..07dfb98 100644 (file)
--- a/arch/arm/configs/tct_hammer_defconfig
+++ b/arch/arm/configs/tct_hammer_defconfig
@@ -247,7 +247,6 @@ CONFIG_ARM_THUMB=y
 #
 # CONFIG_TICK_ONESHOT is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=200
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/configs/trizeps4_defconfig b/arch/arm/configs/trizeps4_defconfig
index 6db6392..8b7a431 100644 (file)
--- a/arch/arm/configs/trizeps4_defconfig
+++ b/arch/arm/configs/trizeps4_defconfig
@@ -195,7 +195,6 @@ CONFIG_PCMCIA_PXA2XX=y
 # Kernel Features
 #
 CONFIG_PREEMPT=y
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y

diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig
index 48dca69..8355f88 100644 (file)
--- a/arch/arm/configs/versatile_defconfig
+++ b/arch/arm/configs/versatile_defconfig
@@ -151,7 +151,6 @@ CONFIG_ARM_AMBA=y
 # Kernel Features
 #
 # CONFIG_PREEMPT is not set
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_HZ=100
 # CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 46bf2ed..199b368 100644 (file)
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -133,10 +133,8 @@ static void default_idle(void)
                cpu_relax();
        else {
                local_irq_disable();
-               if (!need_resched()) {
-                       timer_dyn_reprogram();
+               if (!need_resched())
                        arch_idle();
-               }
                local_irq_enable();
        }
 }

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index b5867ec..cc5145b 100644 (file)
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -365,108 +365,6 @@ static struct sysdev_class timer_sysclass = {
        .resume         = timer_resume,
 };
 
-#ifdef CONFIG_NO_IDLE_HZ
-static int timer_dyn_tick_enable(void)
-{
-       struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
-       unsigned long flags;
-       int ret = -ENODEV;
-
-       if (dyn_tick) {
-               spin_lock_irqsave(&dyn_tick->lock, flags);
-               ret = 0;
-               if (!(dyn_tick->state & DYN_TICK_ENABLED)) {
-                       ret = dyn_tick->enable();
-
-                       if (ret == 0)
-                               dyn_tick->state |= DYN_TICK_ENABLED;
-               }
-               spin_unlock_irqrestore(&dyn_tick->lock, flags);
-       }
-
-       return ret;
-}
-
-static int timer_dyn_tick_disable(void)
-{
-       struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
-       unsigned long flags;
-       int ret = -ENODEV;
-
-       if (dyn_tick) {
-               spin_lock_irqsave(&dyn_tick->lock, flags);
-               ret = 0;
-               if (dyn_tick->state & DYN_TICK_ENABLED) {
-                       ret = dyn_tick->disable();
-
-                       if (ret == 0)
-                               dyn_tick->state &= ~DYN_TICK_ENABLED;
-               }
-               spin_unlock_irqrestore(&dyn_tick->lock, flags);
-       }
-
-       return ret;
-}
-
-/*
- * Reprogram the system timer for at least the calculated time interval.
- * This function should be called from the idle thread with IRQs disabled,
- * immediately before sleeping.
- */
-void timer_dyn_reprogram(void)
-{
-       struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
-       unsigned long next, seq, flags;
-
-       if (!dyn_tick)
-               return;
-
-       spin_lock_irqsave(&dyn_tick->lock, flags);
-       if (dyn_tick->state & DYN_TICK_ENABLED) {
-               next = next_timer_interrupt();
-               do {
-                       seq = read_seqbegin(&xtime_lock);
-                       dyn_tick->reprogram(next - jiffies);
-               } while (read_seqretry(&xtime_lock, seq));
-       }
-       spin_unlock_irqrestore(&dyn_tick->lock, flags);
-}
-
-static ssize_t timer_show_dyn_tick(struct sys_device *dev, char *buf)
-{
-       return sprintf(buf, "%i\n",
-                      (system_timer->dyn_tick->state & DYN_TICK_ENABLED) >> 1);
-}
-
-static ssize_t timer_set_dyn_tick(struct sys_device *dev, const char *buf,
-                                 size_t count)
-{
-       unsigned int enable = simple_strtoul(buf, NULL, 2);
-
-       if (enable)
-               timer_dyn_tick_enable();
-       else
-               timer_dyn_tick_disable();
-
-       return count;
-}
-static SYSDEV_ATTR(dyn_tick, 0644, timer_show_dyn_tick, timer_set_dyn_tick);
-
-/*
- * dyntick=enable|disable
- */
-static char dyntick_str[4] __initdata = "";
-
-static int __init dyntick_setup(char *str)
-{
-       if (str)
-               strlcpy(dyntick_str, str, sizeof(dyntick_str));
-       return 1;
-}
-
-__setup("dyntick=", dyntick_setup);
-#endif
-
 static int __init timer_init_sysfs(void)
 {
        int ret = sysdev_class_register(&timer_sysclass);
@@ -475,19 +373,6 @@ static int __init timer_init_sysfs(void)
                ret = sysdev_register(&system_timer->dev);
        }
 
-#ifdef CONFIG_NO_IDLE_HZ
-       if (ret == 0 && system_timer->dyn_tick) {
-               ret = sysdev_create_file(&system_timer->dev, &attr_dyn_tick);
-
-               /*
-                * Turn on dynamic tick after calibrate delay
-                * for correct bogomips
-                */
-               if (ret == 0 && dyntick_str[0] == 'e')
-                       ret = timer_dyn_tick_enable();
-       }
-#endif
-
        return ret;
 }
 
@@ -500,10 +385,5 @@ void __init time_init(void)
                system_timer->offset = dummy_gettimeoffset;
 #endif
        system_timer->init();
-
-#ifdef CONFIG_NO_IDLE_HZ
-       if (system_timer->dyn_tick)
-               spin_lock_init(&system_timer->dyn_tick->lock);
-#endif
 }
 

diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index e6c64e1..742f79e 100644 (file)
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -116,13 +116,6 @@ void omap_pm_idle(void)
                return;
        }
 
-       /*
-        * Since an interrupt may set up a timer, we don't want to
-        * reprogram the hardware timer with interrupts enabled.
-        * Re-enable interrupts only after returning from idle.
-        */
-       timer_dyn_reprogram();
-
 #ifdef CONFIG_OMAP_MPU_TIMER
 #warning Enable 32kHz OS timer in order to allow sleep states in idle
        use_idlect1 = use_idlect1 & ~(1 << 9);

diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index aad781d..d6c9de8 100644 (file)
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -57,13 +57,6 @@ void omap2_pm_idle(void)
                return;
        }
 
-       /*
-        * Since an interrupt may set up a timer, we don't want to
-        * reprogram the hardware timer with interrupts enabled.
-        * Re-enable interrupts only after returning from idle.
-        */
-       timer_dyn_reprogram();
-
        omap2_sram_idle();
        local_fiq_enable();
        local_irq_enable();

diff --git a/include/asm-arm/dyntick.h b/include/asm-arm/dyntick.h
deleted file mode 100644 (file)
index 19fab2d..0000000
--- a/include/asm-arm/dyntick.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASMARM_DYNTICK_H
-#define _ASMARM_DYNTICK_H
-
-#include <asm/mach/time.h>
-
-#endif /* _ASMARM_DYNTICK_H */

diff --git a/include/asm-arm/hw_irq.h b/include/asm-arm/hw_irq.h
index 98d594a..f1a08a5 100644 (file)
--- a/include/asm-arm/hw_irq.h
+++ b/include/asm-arm/hw_irq.h
@@ -6,15 +6,4 @@
 
 #include <asm/mach/irq.h>
 
-#if defined(CONFIG_NO_IDLE_HZ)
-# include <asm/dyntick.h>
-# define handle_dynamic_tick(action)                                   \
-       if (!(action->flags & IRQF_TIMER) && system_timer->dyn_tick) {  \
-               write_seqlock(&xtime_lock);                             \
-               if (system_timer->dyn_tick->state & DYN_TICK_ENABLED)   \
-                       system_timer->dyn_tick->handler(irq, NULL);     \
-               write_sequnlock(&xtime_lock);                           \
-       }
-#endif
-
 #endif

diff --git a/include/asm-arm/mach/time.h b/include/asm-arm/mach/time.h
index 5dc3570..2fd36ea 100644 (file)
--- a/include/asm-arm/mach/time.h
+++ b/include/asm-arm/mach/time.h
@@ -41,30 +41,8 @@ struct sys_timer {
 #ifndef CONFIG_GENERIC_TIME
        unsigned long           (*offset)(void);
 #endif
-
-#ifdef CONFIG_NO_IDLE_HZ
-       struct dyn_tick_timer   *dyn_tick;
-#endif
-};
-
-#ifdef CONFIG_NO_IDLE_HZ
-
-#define DYN_TICK_ENABLED       (1 << 1)
-
-struct dyn_tick_timer {
-       spinlock_t      lock;
-       unsigned int    state;                  /* Current state */
-       int             (*enable)(void);        /* Enables dynamic tick */
-       int             (*disable)(void);       /* Disables dynamic tick */
-       void            (*reprogram)(unsigned long); /* Reprograms the timer */
-       int             (*handler)(int, void *);
 };
 
-void timer_dyn_reprogram(void);
-#else
-#define timer_dyn_reprogram()  do { } while (0)
-#endif
-
 extern struct sys_timer *system_timer;
 extern void timer_tick(void);