From 396e2c6fed4ff13b53ce0e573105531cf53b0cad Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 2 Apr 2012 15:15:55 +0100
Subject: [PATCH 01/31] x86: Clear HPET configuration registers on startup
While Linux itself has been calling hpet_disable() for quite a
while, having e.g. a secondary (kexec) kernel depend on such
behavior of the primary (crashed) environment is fragile. It
particularly broke until very recently when the primary
environment was Xen based, as that hypervisor did not clear any
of the HPET settings it may have used.
Rather than blindly (and incompletely) clearing certain HPET
settings in hpet_disable(), latch the config register settings
during boot and restore then here.
(Note on the hpet_set_mode() change: Now that we're clearing the
level bit upon initialization, there's no need anymore to do so
here.)
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/4F79D0BB020000780007C02D@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/hpet.c | 59 ++++++++++++++++++++++++++++++++++++------
1 file changed, 51 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index ad0de0c2714e..70bce5db1bb9 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -319,8 +319,6 @@ static void hpet_set_mode(enum clock_event_mode mode,
now = hpet_readl(HPET_COUNTER);
cmp = now + (unsigned int) delta;
cfg = hpet_readl(HPET_Tn_CFG(timer));
- /* Make sure we use edge triggered interrupts */
- cfg &= ~HPET_TN_LEVEL;
cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
HPET_TN_SETVAL | HPET_TN_32BIT;
hpet_writel(cfg, HPET_Tn_CFG(timer));
@@ -787,15 +785,16 @@ static int hpet_clocksource_register(void)
return 0;
}
+static u32 *hpet_boot_cfg;
+
/**
* hpet_enable - Try to setup the HPET timer. Returns 1 on success.
*/
int __init hpet_enable(void)
{
- unsigned long hpet_period;
- unsigned int id;
+ u32 hpet_period, cfg, id;
u64 freq;
- int i;
+ unsigned int i, last;
if (!is_hpet_capable())
return 0;
@@ -847,15 +846,45 @@ int __init hpet_enable(void)
id = hpet_readl(HPET_ID);
hpet_print_config();
+ last = (id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT;
+
#ifdef CONFIG_HPET_EMULATE_RTC
/*
* The legacy routing mode needs at least two channels, tick timer
* and the rtc emulation channel.
*/
- if (!(id & HPET_ID_NUMBER))
+ if (!last)
goto out_nohpet;
#endif
+ cfg = hpet_readl(HPET_CFG);
+ hpet_boot_cfg = kmalloc((last + 2) * sizeof(*hpet_boot_cfg),
+ GFP_KERNEL);
+ if (hpet_boot_cfg)
+ *hpet_boot_cfg = cfg;
+ else
+ pr_warn("HPET initial state will not be saved\n");
+ cfg &= ~(HPET_CFG_ENABLE | HPET_CFG_LEGACY);
+ hpet_writel(cfg, HPET_Tn_CFG(i));
+ if (cfg)
+ pr_warn("HPET: Unrecognized bits %#x set in global cfg\n",
+ cfg);
+
+ for (i = 0; i <= last; ++i) {
+ cfg = hpet_readl(HPET_Tn_CFG(i));
+ if (hpet_boot_cfg)
+ hpet_boot_cfg[i + 1] = cfg;
+ cfg &= ~(HPET_TN_ENABLE | HPET_TN_LEVEL | HPET_TN_FSB);
+ hpet_writel(cfg, HPET_Tn_CFG(i));
+ cfg &= ~(HPET_TN_PERIODIC | HPET_TN_PERIODIC_CAP
+ | HPET_TN_64BIT_CAP | HPET_TN_32BIT | HPET_TN_ROUTE
+ | HPET_TN_FSB | HPET_TN_FSB_CAP);
+ if (cfg)
+ pr_warn("HPET: Unrecognized bits %#x set in cfg#%u\n",
+ cfg, i);
+ }
+ hpet_print_config();
+
if (hpet_clocksource_register())
goto out_nohpet;
@@ -923,14 +952,28 @@ fs_initcall(hpet_late_init);
void hpet_disable(void)
{
if (is_hpet_capable() && hpet_virt_address) {
- unsigned int cfg = hpet_readl(HPET_CFG);
+ unsigned int cfg = hpet_readl(HPET_CFG), id, last;
- if (hpet_legacy_int_enabled) {
+ if (hpet_boot_cfg)
+ cfg = *hpet_boot_cfg;
+ else if (hpet_legacy_int_enabled) {
cfg &= ~HPET_CFG_LEGACY;
hpet_legacy_int_enabled = 0;
}
cfg &= ~HPET_CFG_ENABLE;
hpet_writel(cfg, HPET_CFG);
+
+ if (!hpet_boot_cfg)
+ return;
+
+ id = hpet_readl(HPET_ID);
+ last = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT);
+
+ for (id = 0; id <= last; ++id)
+ hpet_writel(hpet_boot_cfg[id + 1], HPET_Tn_CFG(id));
+
+ if (*hpet_boot_cfg & HPET_CFG_ENABLE)
+ hpet_writel(*hpet_boot_cfg, HPET_CFG);
}
}
From b2d6aba9657c7e3d027dd43ac7d7c405e0079d46 Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 2 Apr 2012 15:17:36 +0100
Subject: [PATCH 02/31] x86: Allow multiple values to be specified with "hpet="
This is particularly to be able to specify "hpet=force,verbose",
as "force" ought to be a primary candidate for also wanting to
use "verbose".
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/4F79D120020000780007C031@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/hpet.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 70bce5db1bb9..9cc7b4392f7c 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -94,13 +94,18 @@ static int hpet_verbose;
static int __init hpet_setup(char *str)
{
- if (str) {
+ while (str) {
+ char *next = strchr(str, ',');
+
+ if (next)
+ *next++ = 0;
if (!strncmp("disable", str, 7))
boot_hpet_disable = 1;
if (!strncmp("force", str, 5))
hpet_force_user = 1;
if (!strncmp("verbose", str, 7))
hpet_verbose = 1;
+ str = next;
}
return 1;
}
From b5e498ad67863cc877fb05e6a71ce58eda4fb2ca Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 18 May 2012 09:59:57 +0200
Subject: [PATCH 03/31] timers: Provide generic Kconfig switches
We really don't want all the arch code defining stuff
over and over.
[ anna-maria: Added missing GENERIC_CMOS_UPDATE switch ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/1337529587.3208.2.camel@dionysos
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
kernel/time/Kconfig | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index a20dc8a3c949..f6ebc4ff702a 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -33,3 +33,38 @@ config GENERIC_CLOCKEVENTS_BUILD
config GENERIC_CLOCKEVENTS_MIN_ADJUST
bool
+
+# Options selectable by arch Kconfig
+
+# Watchdog function for clocksources to detect instabilities
+config CLOCKSOURCE_WATCHDOG
+ bool
+
+# Architecture has extra clocksource data
+config ARCH_CLOCKSOURCE_DATA
+ bool
+
+# Timekeeping vsyscall support
+config GENERIC_TIME_VSYSCALL
+ bool
+
+# ktime_t scalar 64bit nsec representation
+config KTIME_SCALAR
+ bool
+
+# Old style timekeeping
+config ARCH_USES_GETTIMEOFFSET
+ bool
+
+# The generic clock events infrastructure
+config GENERIC_CLOCKEVENTS
+ bool
+
+# Clockevents broadcasting infrastructure
+config GENERIC_CLOCKEVENTS_BROADCAST
+ bool
+ depends on GENERIC_CLOCKEVENTS
+
+# Generic update of CMOS clock
+config GENERIC_CMOS_UPDATE
+ bool
From 6e24f31eab6af44043e9d432bde415c1b4ca1a9e Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:56 +0000
Subject: [PATCH 04/31] alpha: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Matt Turner <mattst88@gmail.com>
Link: http://lkml.kernel.org/r/20120518163107.510619939@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/alpha/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 22e58a99f38b..77ba2680a749 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -15,6 +15,7 @@ config ALPHA
select GENERIC_IRQ_SHOW
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select GENERIC_CMOS_UPDATE
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
@@ -47,9 +48,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config GENERIC_CMOS_UPDATE
- def_bool y
-
config GENERIC_GPIO
bool
From 3d92a71a4467681ef6a47e10447d200b52c78af8 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:44 +0000
Subject: [PATCH 05/31] arm: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Russell King <linux@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/20120518163104.760560327@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/arm/Kconfig | 18 ++----------------
1 file changed, 2 insertions(+), 16 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 36586dba6fa6..feccc1d37ecf 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -34,6 +34,8 @@ config ARM
select CPU_PM if (SUSPEND || CPU_IDLE)
select GENERIC_PCI_IOMAP
select HAVE_BPF_JIT if NET
+ select KTIME_SCALAR
+ select GENERIC_CLOCKEVENTS_BROADCAST if SMP
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
@@ -57,22 +59,6 @@ config SYS_SUPPORTS_APM_EMULATION
config GENERIC_GPIO
bool
-config ARCH_USES_GETTIMEOFFSET
- bool
- default n
-
-config GENERIC_CLOCKEVENTS
- bool
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- bool
- depends on GENERIC_CLOCKEVENTS
- default y if SMP
-
-config KTIME_SCALAR
- bool
- default y
-
config HAVE_TCM
bool
select GENERIC_ALLOCATOR
From 8d6af9914cacfbb60537cf5c46f9ebfc26ff2440 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:45 +0000
Subject: [PATCH 06/31] avr32: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Link: http://lkml.kernel.org/r/20120518163104.889514832@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/avr32/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 3dea7231f637..0bd13ab9f43b 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -12,6 +12,7 @@ config AVR32
select HARDIRQS_SW_RESEND
select GENERIC_IRQ_SHOW
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select GENERIC_CLOCKEVENTS
help
AVR32 is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
@@ -35,9 +36,6 @@ config TRACE_IRQFLAGS_SUPPORT
config RWSEM_GENERIC_SPINLOCK
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config RWSEM_XCHGADD_ALGORITHM
def_bool n
From dfbaec06bd80117f8ed944236efab8fb32cd4f68 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:45 +0000
Subject: [PATCH 07/31] blackfin: Use generic time config
Use seperate selector for clockevents.
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Link: http://lkml.kernel.org/r/20120518163105.026597932@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/blackfin/Kconfig | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 373a6902d8fa..bc21de2e8fed 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -37,6 +37,7 @@ config BLACKFIN
select GENERIC_IRQ_PROBE
select IRQ_PER_CPU if SMP
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
+ select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
config GENERIC_CSUM
def_bool y
@@ -593,9 +594,10 @@ comment "Kernel Timer/Scheduler"
source kernel/Kconfig.hz
-config GENERIC_CLOCKEVENTS
+config SET_GENERIC_CLOCKEVENTS
bool "Generic clock events"
default y
+ select GENERIC_CLOCKEVENTS
menu "Clock event device"
depends on GENERIC_CLOCKEVENTS
@@ -629,10 +631,6 @@ config GPTMR0_CLOCKSOURCE
depends on !TICKSOURCE_GPTMR0
endmenu
-config ARCH_USES_GETTIMEOFFSET
- depends on !GENERIC_CLOCKEVENTS
- def_bool y
-
source kernel/time/Kconfig
comment "Misc"
From 6220443db41899606a8621215e0f6e99477f7152 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:46 +0000
Subject: [PATCH 08/31] c6x: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20120518163105.156595383@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/c6x/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 1c3ccd416d50..30c04c658b9e 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -15,6 +15,7 @@ config TMS320C6X
select IRQ_DOMAIN
select OF
select OF_EARLY_FLATTREE
+ select GENERIC_CLOCKEVENTS
config MMU
def_bool n
@@ -43,12 +44,6 @@ config GENERIC_CALIBRATE_DELAY
config GENERIC_HWEIGHT
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- bool
-
config GENERIC_BUG
def_bool y
From 5227b636eca4226287e43fc1de1e09a694bcaa34 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:46 +0000
Subject: [PATCH 09/31] cris: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Link: http://lkml.kernel.org/r/20120518163105.286556794@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/cris/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index b3abfb08aa5c..4a63e7eca105 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -13,12 +13,6 @@ config RWSEM_GENERIC_SPINLOCK
config RWSEM_XCHGADD_ALGORITHM
bool
-config GENERIC_CMOS_UPDATE
- def_bool y
-
-config ARCH_USES_GETTIMEOFFSET
- def_bool n
-
config ARCH_HAS_ILOG2_U32
bool
default n
@@ -49,6 +43,7 @@ config CRIS
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
+ select GENERIC_CMOS_UPDATE
config HZ
int
From 24a6f35e192ed54205024742eb8a4a2f99c1da9d Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:47 +0000
Subject: [PATCH 10/31] hexagon: Use generic time config
config GENERIC_TIME not longer used.
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Richard Kuo <rkuo@codeaurora.org>
Link: http://lkml.kernel.org/r/20120518163105.416570309@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/hexagon/Kconfig | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 9059e3905887..7727ed9d2bf3 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -28,6 +28,9 @@ config HEXAGON
select NO_IOPORT
select GENERIC_IOMAP
# mostly generic routines, with some accelerated ones
+ select KTIME_SCALAR
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CLOCKEVENTS_BROADCAST
---help---
Qualcomm Hexagon is a processor architecture designed for high
performance and low power across a wide variety of applications.
@@ -56,9 +59,6 @@ config PCI
config EARLY_PRINTK
def_bool y
-config KTIME_SCALAR
- def_bool y
-
config MMU
def_bool y
@@ -98,15 +98,6 @@ config GENERIC_FIND_NEXT_BIT
config GENERIC_HWEIGHT
def_bool y
-config GENERIC_TIME
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- def_bool y
-
config STACKTRACE_SUPPORT
def_bool y
select STACKTRACE
From 21b19710a2fbbec3d81e7cb4d74a8ea4f0acfeea Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:48 +0000
Subject: [PATCH 11/31] ia64: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20120518163105.547603093@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/ia64/Kconfig | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index bd7266903bf8..9f9d57bf8a2f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,8 @@ config IA64
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
+ select ARCH_CLOCKSOURCE_DATA
+ select GENERIC_TIME_VSYSCALL
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
@@ -88,10 +90,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config GENERIC_TIME_VSYSCALL
- bool
- default y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool y
@@ -106,9 +104,6 @@ config EFI
bool
default y
-config ARCH_CLOCKSOURCE_DATA
- def_bool y
-
config SCHED_OMIT_FRAME_POINTER
bool
default y
From 97a1c1e918f6cf746352f565f5f2e00916309ede Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:48 +0000
Subject: [PATCH 12/31] m32r: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Link: http://lkml.kernel.org/r/20120518163105.678581749@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/m32r/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index ef80a6546ff2..b638d5bfa14d 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -11,6 +11,7 @@ config M32R
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
+ select ARCH_USES_GETTIMEOFFSET
config SBUS
bool
@@ -33,9 +34,6 @@ config HZ
int
default 100
-config ARCH_USES_GETTIMEOFFSET
- def_bool y
-
source "init/Kconfig"
source "kernel/Kconfig.freezer"
From 60a5e4c3d3df6ec9006576935953dde6cf94f02a Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:49 +0000
Subject: [PATCH 13/31] m68k: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: http://lkml.kernel.org/r/20120518163105.808606368@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/m68k/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d318c606c888..2f4b0f0610d6 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -8,6 +8,7 @@ config M68K
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
select GENERIC_CPU_DEVICES
select FPU if MMU
+ select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
config RWSEM_GENERIC_SPINLOCK
bool
@@ -22,9 +23,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
bool
-config GENERIC_CLOCKEVENTS
- bool
-
config GENERIC_GPIO
bool
@@ -43,9 +41,6 @@ config TIME_LOW_RES
bool
default y
-config ARCH_USES_GETTIMEOFFSET
- def_bool MMU && !COLDFIRE
-
config NO_IOPORT
def_bool y
From d6412e2bdcd8dae1d502b49aff418275742d2887 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:49 +0000
Subject: [PATCH 14/31] microblaze: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Michal Simek <monstr@monstr.eu>
Link: http://lkml.kernel.org/r/20120518163105.939597527@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/microblaze/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index ac22dc7f4cab..3e786ac9a655 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -22,6 +22,7 @@ config MICROBLAZE
select GENERIC_PCI_IOMAP
select GENERIC_CPU_DEVICES
select GENERIC_ATOMIC64
+ select GENERIC_CLOCKEVENTS
config SWAP
def_bool n
@@ -50,12 +51,6 @@ config GENERIC_HWEIGHT
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_TIME_VSYSCALL
- def_bool n
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config GENERIC_GPIO
def_bool y
From cde1794b069f44ca02f3f4f50a903e9361132244 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:50 +0000
Subject: [PATCH 15/31] mips: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Link: http://lkml.kernel.org/r/20120518163106.073559820@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/mips/Kconfig | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ce30e2f91d77..c9c330bc4e76 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -29,6 +29,8 @@ config MIPS
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CMOS_UPDATE
menu "Machine selection"
@@ -856,14 +858,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config GENERIC_CLOCKEVENTS
- bool
- default y
-
-config GENERIC_CMOS_UPDATE
- bool
- default y
-
config SCHED_OMIT_FRAME_POINTER
bool
default y
@@ -2050,9 +2044,6 @@ config CPU_HAS_SYNC
depends on !CPU_R3000
default y
-config GENERIC_CLOCKEVENTS_BROADCAST
- bool
-
#
# CPU non-features
#
From ea5332098e68e2380429ce8025996fad61ca28a6 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:50 +0000
Subject: [PATCH 16/31] mn10300: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/20120518163106.201635926@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/mn10300/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 3aa3de017159..7f78057af2f5 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -6,6 +6,7 @@ config MN10300
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_KGDB
select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
+ select GENERIC_CLOCKEVENTS
config AM33_2
def_bool n
@@ -42,15 +43,9 @@ config RWSEM_XCHGADD_ALGORITHM
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_CMOS_UPDATE
- def_bool n
-
config GENERIC_HWEIGHT
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config GENERIC_BUG
def_bool y
From b9ed27dfcd8b68de90dc285acd9e7c7113964888 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:51 +0000
Subject: [PATCH 17/31] powerpc: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Link: http://lkml.kernel.org/r/20120518163106.464567389@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/powerpc/Kconfig | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index feab3bad6d0f..901215f7a2f2 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -27,15 +27,6 @@ config MMU
bool
default y
-config GENERIC_CMOS_UPDATE
- def_bool y
-
-config GENERIC_TIME_VSYSCALL
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool PPC64
@@ -144,6 +135,9 @@ config PPC
select HAVE_BPF_JIT if (PPC64 && NET)
select HAVE_ARCH_JUMP_LABEL
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select GENERIC_CMOS_UPDATE
+ select GENERIC_TIME_VSYSCALL
+ select GENERIC_CLOCKEVENTS
config EARLY_PRINTK
bool
From 5bf8f6bfc950abe23927e0ff54cdb260d19d608e Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:51 +0000
Subject: [PATCH 18/31] openrisc: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Jonas Bonn <jonas@southpole.se>
Link: http://lkml.kernel.org/r/20120518163106.333611712@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/openrisc/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index a4787197d8fe..be04485431fe 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -17,6 +17,7 @@ config OPENRISC
select GENERIC_IOMAP
select GENERIC_CPU_DEVICES
select GENERIC_ATOMIC64
+ select GENERIC_CLOCKEVENTS
config MMU
def_bool y
@@ -46,9 +47,6 @@ config NO_IOPORT
config GENERIC_GPIO
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config TRACE_IRQFLAGS_SUPPORT
def_bool y
From a6527b92e40f48b29c31be911c3d62eec484cf70 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:52 +0000
Subject: [PATCH 19/31] s390: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20120518163106.595607369@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/s390/Kconfig | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9015060919a0..f9edb9303a7e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -28,12 +28,6 @@ config ARCH_HAS_ILOG2_U64
config GENERIC_HWEIGHT
def_bool y
-config GENERIC_TIME_VSYSCALL
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
config GENERIC_BUG
def_bool y if BUG
@@ -122,6 +116,9 @@ config S390
select ARCH_INLINE_WRITE_UNLOCK_BH
select ARCH_INLINE_WRITE_UNLOCK_IRQ
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+ select GENERIC_TIME_VSYSCALL
+ select GENERIC_CLOCKEVENTS
+ select KTIME_SCALAR if 32BIT
config SCHED_OMIT_FRAME_POINTER
def_bool y
@@ -146,9 +143,6 @@ config 64BIT
config 32BIT
def_bool y if !64BIT
-config KTIME_SCALAR
- def_bool 32BIT
-
config SMP
def_bool y
prompt "Symmetric multi-processing support"
From 43229d1e0976e42069cbc8cab99273183becd0ec Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:52 +0000
Subject: [PATCH 20/31] score: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Link: http://lkml.kernel.org/r/20120518163106.727602709@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/score/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 4b285779ac05..f5d3b3237419 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -9,6 +9,7 @@ config SCORE
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
select GENERIC_CPU_DEVICES
+ select GENERIC_CLOCKEVENTS
choice
prompt "System type"
@@ -51,9 +52,6 @@ config GENERIC_HWEIGHT
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
menu "Kernel type"
config 32BIT
From 8cf200d8d01e71e8708a883a9cd0439cda6c2432 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:53 +0000
Subject: [PATCH 21/31] sh: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120518163106.857566635@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/sh/Kconfig | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ff9e033ce626..cffd8b0082d5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -28,6 +28,8 @@ config SUPERH
select RTC_LIB
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
@@ -86,16 +88,6 @@ config GENERIC_GPIO
config GENERIC_CALIBRATE_DELAY
bool
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- bool
-
-config GENERIC_CMOS_UPDATE
- def_bool y
- depends on SH_SH03 || SH_DREAMCAST
-
config GENERIC_LOCKBREAK
def_bool y
depends on SMP && PREEMPT
From ded1cc5cfc3b4bc007fe3bb8fbfd9e66d8d667d7 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:54 +0000
Subject: [PATCH 22/31] sparc: Use: generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: David S. Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20120518163106.987564297@glx-um.de
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/sparc/Kconfig | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6c0683d3fcba..33399d3d90bc 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -30,11 +30,13 @@ config SPARC
select USE_GENERIC_SMP_HELPERS if SMP
select GENERIC_PCI_IOMAP
select HAVE_NMI_WATCHDOG if SPARC64
+ select GENERIC_CMOS_UPDATE
config SPARC32
def_bool !64BIT
select GENERIC_ATOMIC64
select CLZ_TAB
+ select ARCH_USES_GETTIMEOFFSET
config SPARC64
def_bool 64BIT
@@ -61,6 +63,7 @@ config SPARC64
select IRQ_PREFLOW_FASTEOI
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select HAVE_C_RECORDMCOUNT
+ select GENERIC_CLOCKEVENTS
config ARCH_DEFCONFIG
string
@@ -73,18 +76,6 @@ config BITS
default 32 if SPARC32
default 64 if SPARC64
-config ARCH_USES_GETTIMEOFFSET
- bool
- default y if SPARC32
-
-config GENERIC_CMOS_UPDATE
- bool
- default y
-
-config GENERIC_CLOCKEVENTS
- bool
- default y if SPARC64
-
config IOMMU_HELPER
bool
default y if SPARC64
From 4ec008d630d9d96579b5911c140bb8de2aa68f0e Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:54 +0000
Subject: [PATCH 23/31] tile: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Link: http://lkml.kernel.org/r/20120518163107.122560037@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/tile/Kconfig | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 96033e2d6845..b56772cac5d2 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -13,6 +13,7 @@ config TILE
select GENERIC_IRQ_SHOW
select SYS_HYPERVISOR
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select GENERIC_CLOCKEVENTS
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT
@@ -46,9 +47,6 @@ config NEED_PER_CPU_PAGE_FIRST_CHUNK
config SYS_SUPPORTS_HUGETLBFS
def_bool y
-config GENERIC_CLOCKEVENTS
- def_bool y
-
# FIXME: tilegx can implement a more efficient rwsem.
config RWSEM_GENERIC_SPINLOCK
def_bool y
From 875c9d09b5a6400d6882b0e6e828862a73ce739d Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:55 +0000
Subject: [PATCH 24/31] um: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/20120518163107.251597655@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/um/Kconfig.common | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 20a49ba93cb9..806185de0ba2 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -10,6 +10,7 @@ config UML
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_IO
+ select GENERIC_CLOCKEVENTS
config MMU
bool
@@ -52,10 +53,6 @@ config GENERIC_BUG
default y
depends on BUG
-config GENERIC_CLOCKEVENTS
- bool
- default y
-
# Used in kernel/irq/manage.c and include/linux/irq.h
config IRQ_RELEASE_METHOD
bool
From 22bc48f986d21d0a8d80a642c7c4e87c11f42a5d Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:55 +0000
Subject: [PATCH 25/31] unicore32: Use generic time config
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Link: http://lkml.kernel.org/r/20120518163107.383567224@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/unicore32/Kconfig | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index eeb8054c7cd8..a25ca7606bea 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -25,9 +25,6 @@ config HAVE_PWM
config GENERIC_GPIO
def_bool y
-config GENERIC_CLOCKEVENTS
- bool
-
config GENERIC_CSUM
def_bool y
From bdebaf80a02b854381fe212e0dac13c8c8edac57 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 18 May 2012 16:45:44 +0000
Subject: [PATCH 26/31] x86: Use generic time config
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Link: http://lkml.kernel.org/r/20120518163104.630579708@glx-um.de
Cc: x86@kernel.org
---
arch/x86/Kconfig | 31 +++++++------------------------
1 file changed, 7 insertions(+), 24 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c9866b0b77d8..3b0a9217836a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -82,6 +82,13 @@ config X86
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
select DCACHE_WORD_ACCESS
+ select GENERIC_CMOS_UPDATE
+ select CLOCKSOURCE_WATCHDOG
+ select GENERIC_CLOCKEVENTS
+ select ARCH_CLOCKSOURCE_DATA if X86_64
+ select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
+ select GENERIC_TIME_VSYSCALL if X86_64
+ select KTIME_SCALAR if X86_32
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS)
@@ -96,23 +103,6 @@ config ARCH_DEFCONFIG
default "arch/x86/configs/i386_defconfig" if X86_32
default "arch/x86/configs/x86_64_defconfig" if X86_64
-config GENERIC_CMOS_UPDATE
- def_bool y
-
-config CLOCKSOURCE_WATCHDOG
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config ARCH_CLOCKSOURCE_DATA
- def_bool y
- depends on X86_64
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- def_bool y
- depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
-
config LOCKDEP_SUPPORT
def_bool y
@@ -166,10 +156,6 @@ config ARCH_HAS_CPU_IDLE_WAIT
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_TIME_VSYSCALL
- bool
- default X86_64
-
config ARCH_HAS_CPU_RELAX
def_bool y
@@ -236,9 +222,6 @@ config ARCH_HWEIGHT_CFLAGS
default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
-config KTIME_SCALAR
- def_bool X86_32
-
config ARCH_CPU_PROBE_RELEASE
def_bool y
depends on HOTPLUG_CPU
From 764e0da14fd7ac2d259d98d34ece0a87d32306c9 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 21 May 2012 23:16:18 +0200
Subject: [PATCH 27/31] timers: Fixup the Kconfig consolidation fallout
Sigh, I missed to check which architecture Kconfig files actually
include the core Kconfig file. There are a few which did not. So we
broke them.
Instead of adding the includes to those, we are better off to move the
include to init/Kconfig like we did already with irqs and others.
This does not change anything for the architectures using the old
style periodic timer mode. It just solves the build wreckage there.
For those architectures which use the clock events infrastructure it
moves the include of the core Kconfig file to "General setup" which is
a way more logical place than having it at random locations specified
by the architecture specific Kconfigs.
Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Anna-Maria Gleixner <anna-maria@glx-um.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/arm/Kconfig | 2 --
arch/avr32/Kconfig | 2 --
arch/blackfin/Kconfig | 2 --
arch/c6x/Kconfig | 1 -
arch/h8300/Kconfig.cpu | 2 --
arch/hexagon/Kconfig | 1 -
arch/m68k/Kconfig | 4 ---
arch/microblaze/Kconfig | 2 --
arch/mips/Kconfig | 2 --
arch/mn10300/Kconfig | 1 -
arch/openrisc/Kconfig | 1 -
arch/powerpc/Kconfig | 1 -
arch/s390/Kconfig | 2 --
arch/score/Kconfig | 1 -
arch/sh/Kconfig | 3 --
arch/sparc/Kconfig | 2 --
arch/tile/Kconfig | 2 --
arch/um/Kconfig.um | 1 -
arch/unicore32/Kconfig | 2 --
arch/x86/Kconfig | 2 --
init/Kconfig | 1 +
kernel/time/Kconfig | 73 +++++++++++++++++++++++------------------
22 files changed, 42 insertions(+), 68 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index feccc1d37ecf..c1e5f07fab93 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1459,8 +1459,6 @@ endmenu
menu "Kernel Features"
-source "kernel/time/Kconfig"
-
config HAVE_SMP
bool
help
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 0bd13ab9f43b..f8bc2d27d148 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -61,8 +61,6 @@ source "kernel/Kconfig.freezer"
menu "System Type and features"
-source "kernel/time/Kconfig"
-
config SUBARCH_AVR32B
bool
config MMU
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index bc21de2e8fed..f7897eefa630 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -631,8 +631,6 @@ config GPTMR0_CLOCKSOURCE
depends on !TICKSOURCE_GPTMR0
endmenu
-source kernel/time/Kconfig
-
comment "Misc"
choice
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 30c04c658b9e..9d446eff2c04 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -132,7 +132,6 @@ source "mm/Kconfig"
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
-source "kernel/time/Kconfig"
endmenu
diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
index 15c22286ae79..321f3922728b 100644
--- a/arch/h8300/Kconfig.cpu
+++ b/arch/h8300/Kconfig.cpu
@@ -1,7 +1,5 @@
menu "Processor type and features"
-source "kernel/time/Kconfig"
-
choice
prompt "H8/300 platform"
default H8300H_GENERIC
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 7727ed9d2bf3..35f6c32d040c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -183,7 +183,6 @@ endchoice
source "mm/Kconfig"
source "kernel/Kconfig.hz"
-source "kernel/time/Kconfig"
config GENERIC_GPIO
bool "Generic GPIO support"
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 2f4b0f0610d6..cac5b6be572a 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -106,10 +106,6 @@ if COLDFIRE
source "kernel/Kconfig.preempt"
endif
-if !MMU || COLDFIRE
-source "kernel/time/Kconfig"
-endif
-
source "mm/Kconfig"
endmenu
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3e786ac9a655..83460468998d 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -74,8 +74,6 @@ source "arch/microblaze/platform/Kconfig.platform"
menu "Processor type and features"
-source "kernel/time/Kconfig"
-
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c9c330bc4e76..b65a730cba75 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2205,8 +2205,6 @@ config NR_CPUS
performance should round up your number of processors to the next
power of two.
-source "kernel/time/Kconfig"
-
#
# Timer Interrupt Frequency Configuration
#
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 7f78057af2f5..687f9b4a2ed6 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -226,7 +226,6 @@ config MN10300_USING_JTAG
single-stepping, which are taken over completely by the JTAG unit.
source "kernel/Kconfig.hz"
-source "kernel/time/Kconfig"
config MN10300_RTC
bool "Using MN10300 RTC"
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index be04485431fe..70653039e79b 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -106,7 +106,6 @@ config OPENRISC_HAVE_INST_DIV
endmenu
-source "kernel/time/Kconfig"
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 901215f7a2f2..d47cf7ffa792 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -278,7 +278,6 @@ config HIGHMEM
bool "High memory support"
depends on PPC32
-source kernel/time/Kconfig
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "fs/Kconfig.binfmt"
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f9edb9303a7e..d0325d9ae21f 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -131,8 +131,6 @@ menu "Base setup"
comment "Processor type and features"
-source "kernel/time/Kconfig"
-
config 64BIT
def_bool y
prompt "64 bit kernel"
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index f5d3b3237419..ba0f412920be 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -66,7 +66,6 @@ config MEMORY_START
hex
default 0xa0000000
-source "kernel/time/Kconfig"
source "kernel/Kconfig.hz"
source "kernel/Kconfig.preempt"
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index cffd8b0082d5..820dfe3c7b69 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -577,9 +577,6 @@ config SH_CLK_CPG_LEGACY
depends on SH_CLK_CPG
def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
!CPU_SHX3 && !CPU_SUBTYPE_SH7757
-
-source "kernel/time/Kconfig"
-
endmenu
menu "CPU Frequency scaling"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 33399d3d90bc..b5a035a5c53a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -266,8 +266,6 @@ config HOTPLUG_CPU
can be controlled through /sys/devices/system/cpu/cpu#.
Say N if you want to disable CPU hotplug.
-source "kernel/time/Kconfig"
-
if SPARC64
source "drivers/cpufreq/Kconfig"
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index b56772cac5d2..4eec3a1a72c0 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -136,8 +136,6 @@ config NR_CPUS
smaller kernel memory footprint results from using a smaller
value on chips with fewer tiles.
-source "kernel/time/Kconfig"
-
source "kernel/Kconfig.hz"
config KEXEC
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index 70fd690964e4..bf87f25eb2de 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -10,7 +10,6 @@ config STATIC_LINK
2.75G) for UML.
source "mm/Kconfig"
-source "kernel/time/Kconfig"
config LD_SCRIPT_STATIC
bool
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index a25ca7606bea..47ad5210606f 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -143,8 +143,6 @@ endmenu
menu "Kernel Features"
-source "kernel/time/Kconfig"
-
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3b0a9217836a..1b1e0493ef7f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -241,8 +241,6 @@ config ZONE_DMA
If unsure, say Y.
-source "kernel/time/Kconfig"
-
config SMP
bool "Symmetric multi-processing support"
---help---
diff --git a/init/Kconfig b/init/Kconfig
index 6cfd71d06463..528a0c4111cc 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -387,6 +387,7 @@ config AUDIT_LOGINUID_IMMUTABLE
but may not be backwards compatible with older init systems.
source "kernel/irq/Kconfig"
+source "kernel/time/Kconfig"
menu "RCU Subsystem"
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index f6ebc4ff702a..fd42bd452b75 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -2,38 +2,6 @@
# Timer subsystem related configuration options
#
-# Core internal switch. Selected by NO_HZ / HIGH_RES_TIMERS. This is
-# only related to the tick functionality. Oneshot clockevent devices
-# are supported independ of this.
-config TICK_ONESHOT
- bool
-
-config NO_HZ
- bool "Tickless System (Dynamic Ticks)"
- depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
- select TICK_ONESHOT
- help
- This option enables a tickless system: timer interrupts will
- only trigger on an as-needed basis both when the system is
- busy and when the system is idle.
-
-config HIGH_RES_TIMERS
- bool "High Resolution Timer Support"
- depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
- select TICK_ONESHOT
- help
- This option enables high resolution timer support. If your
- hardware is not capable then this option only increases
- the size of the kernel image.
-
-config GENERIC_CLOCKEVENTS_BUILD
- bool
- default y
- depends on GENERIC_CLOCKEVENTS
-
-config GENERIC_CLOCKEVENTS_MIN_ADJUST
- bool
-
# Options selectable by arch Kconfig
# Watchdog function for clocksources to detect instabilities
@@ -60,11 +28,52 @@ config ARCH_USES_GETTIMEOFFSET
config GENERIC_CLOCKEVENTS
bool
+# Migration helper. Builds, but does not invoke
+config GENERIC_CLOCKEVENTS_BUILD
+ bool
+ default y
+ depends on GENERIC_CLOCKEVENTS
+
# Clockevents broadcasting infrastructure
config GENERIC_CLOCKEVENTS_BROADCAST
bool
depends on GENERIC_CLOCKEVENTS
+# Automatically adjust the min. reprogramming time for
+# clock event device
+config GENERIC_CLOCKEVENTS_MIN_ADJUST
+ bool
+
# Generic update of CMOS clock
config GENERIC_CMOS_UPDATE
bool
+
+if GENERIC_CLOCKEVENTS
+menu "Timers subsystem"
+
+# Core internal switch. Selected by NO_HZ / HIGH_RES_TIMERS. This is
+# only related to the tick functionality. Oneshot clockevent devices
+# are supported independ of this.
+config TICK_ONESHOT
+ bool
+
+config NO_HZ
+ bool "Tickless System (Dynamic Ticks)"
+ depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
+ select TICK_ONESHOT
+ help
+ This option enables a tickless system: timer interrupts will
+ only trigger on an as-needed basis both when the system is
+ busy and when the system is idle.
+
+config HIGH_RES_TIMERS
+ bool "High Resolution Timer Support"
+ depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
+ select TICK_ONESHOT
+ help
+ This option enables high resolution timer support. If your
+ hardware is not capable then this option only increases
+ the size of the kernel image.
+
+endmenu
+endif
From dd48d708ff3e917f6d6b6c2b696c3f18c019feed Mon Sep 17 00:00:00 2001
From: Richard Cochran <richardcochran@gmail.com>
Date: Thu, 26 Apr 2012 14:11:32 +0200
Subject: [PATCH 28/31] ntp: Correct TAI offset during leap second
When repeating a UTC time value during a leap second (when the UTC
time should be 23:59:60), the TAI timescale should not stop. The kernel
NTP code increments the TAI offset one second too late. This patch fixes
the issue by incrementing the offset during the leap second itself.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/time/ntp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index f03fd83b170b..e8c867173ae5 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -412,6 +412,7 @@ int second_overflow(unsigned long secs)
if (secs % 86400 == 0) {
leap = -1;
time_state = TIME_OOP;
+ time_tai++;
printk(KERN_NOTICE
"Clock: inserting leap second 23:59:60 UTC\n");
}
@@ -426,7 +427,6 @@ int second_overflow(unsigned long secs)
}
break;
case TIME_OOP:
- time_tai++;
time_state = TIME_WAIT;
break;
From cd5398bed9296d1ddb21630ac17e90cd19a5c62e Mon Sep 17 00:00:00 2001
From: Richard Cochran <richardcochran@gmail.com>
Date: Fri, 27 Apr 2012 10:12:41 +0200
Subject: [PATCH 29/31] ntp: Fix a stale comment and a few stray newlines.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/time/ntp.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index e8c867173ae5..70b33abcc7bb 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -473,8 +473,6 @@ int second_overflow(unsigned long secs)
<< NTP_SCALE_SHIFT;
time_adjust = 0;
-
-
out:
spin_unlock_irqrestore(&ntp_lock, flags);
@@ -559,10 +557,10 @@ static inline void process_adj_status(struct timex *txc, struct timespec *ts)
/* only set allowed bits */
time_status &= STA_RONLY;
time_status |= txc->status & ~STA_RONLY;
-
}
+
/*
- * Called with the xtime lock held, so we can access and modify
+ * Called with ntp_lock held, so we can access and modify
* all the global NTP state:
*/
static inline void process_adjtimex_modes(struct timex *txc, struct timespec *ts)
From 190d3b6b4ab0e1ce991e8bc94ad95f00b0dc476b Mon Sep 17 00:00:00 2001
From: Richard Cochran <richardcochran@gmail.com>
Date: Fri, 18 May 2012 16:09:53 +0200
Subject: [PATCH 30/31] time: remove obsolete declaration
The function, timekeeping_leap_insert, was removed in commit
6b43ae8a619d17c4935c3320d2ef9e92bdeed05d
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/time.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/time.h b/include/linux/time.h
index 33a92ead4d88..179f4d6755fc 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -167,7 +167,6 @@ extern void get_monotonic_boottime(struct timespec *ts);
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
extern int timekeeping_valid_for_hres(void);
extern u64 timekeeping_max_deferment(void);
-extern void timekeeping_leap_insert(int leapsecond);
extern int timekeeping_inject_offset(struct timespec *ts);
struct tms;
From d239f49d77ad9ffa442e700db3cab06d8b414cd1 Mon Sep 17 00:00:00 2001
From: Richard Cochran <richardcochran@gmail.com>
Date: Fri, 27 Apr 2012 10:12:42 +0200
Subject: [PATCH 31/31] timekeeping: Fix a few minor newline issues.
Fix a few minor newline issues.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/time/timekeeping.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index d66b21308f7c..6e46cacf5969 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -240,7 +240,6 @@ void getnstimeofday(struct timespec *ts)
timespec_add_ns(ts, nsecs);
}
-
EXPORT_SYMBOL(getnstimeofday);
ktime_t ktime_get(void)
@@ -357,8 +356,8 @@ void do_gettimeofday(struct timeval *tv)
tv->tv_sec = now.tv_sec;
tv->tv_usec = now.tv_nsec/1000;
}
-
EXPORT_SYMBOL(do_gettimeofday);
+
/**
* do_settimeofday - Sets the time of day
* @tv: pointer to the timespec variable containing the new time
@@ -392,7 +391,6 @@ int do_settimeofday(const struct timespec *tv)
return 0;
}
-
EXPORT_SYMBOL(do_settimeofday);