[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dyntick is superseded by the clocksource/clockevent infrastructure,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 b786e68914d4a20b12b743ee886b9acdbed623d7..167824e24edc127884e63b381b4a0d0151d2e1fa 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 e32e73648129d36ac9726b10d2723b7d38e918db..b8e73e95598d244991272b80d05a31964ae9ec00 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 2dbbbc3d4ac36d91fafc246a20434af0b9f31c5e..868fb7b9530b19379fb8a5725df41c5943456bf7 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 6e994f7820c6975dbf97fd127017e13c436e518b..de43fc6756162078b853e95b9739f9ee7bb4daee 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 f659c938473f8da945fc1540a0bcf3bd8d7457fb..2011adfa6758998115dec29a07593b052f66515a 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 3802e85f7483c65af9e5256debe4a2879749aea4..4049768962d2dc4379b3a0295cc2e6acd15c3ad1 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 32a0d74e0c8998bb3c3997de96e3d6a11ef23e24..fa1c5aecb5a8d86c2ebdf9d204c55adcfc45154d 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 98e6746d02be22d3849a046114b3838358435278..d8ec5f9ca6ec49c5ec40aebd6b4672124020e27d 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 d846a492e5ce2a446f0c1017e1edd1ca891c067f..85c80f723d8e7f43d5287c34cd911059a5e1e31a 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 5cab08397ae7943b33173710028b110c2dde2f5d..33b201c3b30900036550546aace1ade12d059c9f 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 4264e273202d21a9df214b818b1f409583d020d0..f7622e658163f54db175077d658a72e9f16d9cbd 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 e8980a9bb893f50e94889e1237e842547a7bc9a5..9b8748a8d9ddaa9ee9808262e54ae0b67ea1d8b0 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 90ed214e367337bf8edecc69ad0cfc3ed08b001c..cfeb817ad21acc090ae1de10e4ee07fe01786f64 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 6bea0901bdf0f1e6210de6bc831beef5ea791926..d3114c23603bac53c6b03ffbc004f13fd58a7a93 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 24a701ab33e5fce33d68356bde6f57ebd2d02fc0..21aa013793c6e6e5771218ba7dcd8b989335c209 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 ed487b90dbed794754fedd8cf9acfef10832d666..493ecee24f94c5c4c7e268c00fe8c48bb2481341 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 988b4d13e76f5c9da6389615a74c0533ac703eba..482e57061053eb83eb67558a9950b25ee8676e22 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 83f40d4041a6650a2e6f35bfa0256cf549c4ff2a..8612f58e105675b6f6c2529db0f2c1721a0634bc 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 917afb5ccfacba602b1041b35f6689e5cbb1fc66..8b0098d19d084979731dfe3b6d7bf357f956b064 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 f8f9793b526f243187ec24754f8fcb6bf7422506..84680db6c6152c49a578a77f73a03736f9ea9613 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 27cf022dd807195f5703910fcc7d74164983510f..4a2f7b2372db3acd7aa418567bfd38733de719f8 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 ae51a40db6f99df08cddefbfcc96714f35f8525e..6dd95a2c8d5d09e6c1d050ab25bc0ece08199eaa 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 c16537d9d67a9102818e9ef3fdc4041812520680..8e74c66f239db6bec52dd8f88ffa1a8c44603b55 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 8ab21a0719e959097e465e714ec2a00084693302..6077f2cb88e4cecfce760d26237fd984ac6db594 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 a3bf5833b87ad94a9987185f333818b7916cab08..1a38d8e3fe66ba59c2b189a1d89d42c9ce88a91a 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 46a0f7fe1fa51823eda6d4b25f2bdca451099203..7a2e932da1c644fc8bd4390eb1a99005a0040f14 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 57f32f39d0ff6af2de160fd9cdc897f85af516fa..0884f2370c3ae649ac15009a8677e7d486040146 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 650a248613e5afc6b0d838646d42ed04d6aabb0c..418ca2febbe303df5145f5a162b459e33ad2b431 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 95a22f5128054528c29fa38b2895a424ee519315..14826f0dabde9300232a283c01f9b5153075dd17 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 b5e11aa2e290f4f94c33b3e2c5fe0e5cd9ee381f..811b8f60d19deef2ef61aa835f09ba28c7f7a86b 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 fc39ba1a89f316cd222b61d36794340a334bc92f..0c09b23167ec1f69b961322a5f051e2a8709347e 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 accbf529ce5bdba509700fe787917f0a8b231b36..907e54344dad05af00744830cd6aae993b3a436a 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 5ddecb9ddf01df02111c587c7c076eed53ec2bc4..f62d1817d2c67980fa957f80037c26628947b2d7 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 f8a1645b3d4affd925eb2dfaaf85cd1d1db995a4..6d03763773bf336305aad6a32160c18c96d549b0 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 484dc9739dfcd9aefe6acfb5d43a73b2eb9dfa3e..8688362bcf7b18ffb7525954c4a34112dccf6db9 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 aa7a011795006fad2a2d624453d38595f933ec12..7d59fb1f1ceaa523bfc3433b6d1498d9d67b0e94 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 576b8339f0d632f91b2b8e6ef508b51344add228..07dfb98df4f0798da3b02a9497c0a32b081ff3be 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 6db6392806f9a507ff9a0d24f62c7d2dd190ad11..8b7a431a8bfc6c2ac26586843eed1d7c3d4e1e5f 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 48dca69addae8608fc2aea9c40d62f441351f2d3..8355f88f72926b83cc25c106f597ce967bc3e3a9 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 46bf2ede612840b84eb3f7994c4cc85ae0d4c076..199b3680118bc4c5f09c4ee300a41627830d587a 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 b5867eca1d0bed94548a1582445a12979c1fc86d..cc5145b28e7f0997c3b9a9edd8b6c38ebf482c44 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 e6c64e10b7ec283b46d58177e2a7e5d7b9984b0a..742f79e73bd7abeb49bd9013d188f0b1d323cca8 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 aad781dcf1b1b4f5cf18e3d0d8c3b034c5394f98..d6c9de82ca0c0c30b3ce0c549a185c79e7e22577 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 98d594a973d6c821d5314afb6c13c08d22871fd1..f1a08a5006049eafa5d70b7f2ffc51eb989f8650 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 5dc357013b7943356c2ee7b09f147dbbde5273b6..2fd36ea0130df8f687f4437c25086cb6f1b15209 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);