Merge branch 'misc' into devel

Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c

Documentation/arm/00-INDEX

@@ -34,3 +34,5 @@ memory.txt
 	- description of the virtual memory layout
 nwfpe/
 	- NWFPE floating point emulator documentation
+swp_emulation
+	- SWP/SWPB emulation handler/logging description

Documentation/arm/swp_emulation

@@ -0,0 +1,27 @@
+Software emulation of deprecated SWP instruction (CONFIG_SWP_EMULATE)
+---------------------------------------------------------------------
+
+ARMv6 architecture deprecates use of the SWP/SWPB instructions, and recommeds
+moving to the load-locked/store-conditional instructions LDREX and STREX.
+
+ARMv7 multiprocessing extensions introduce the ability to disable these
+instructions, triggering an undefined instruction exception when executed.
+Trapped instructions are emulated using an LDREX/STREX or LDREXB/STREXB
+sequence. If a memory access fault (an abort) occurs, a segmentation fault is
+signalled to the triggering process.
+
+/proc/cpu/swp_emulation holds some statistics/information, including the PID of
+the last process to trigger the emulation to be invocated. For example:
+---
+Emulated SWP:		12
+Emulated SWPB:		0
+Aborted SWP{B}:		1
+Last process:		314
+---
+
+NOTE: when accessing uncached shared regions, LDREX/STREX rely on an external
+transaction monitoring block called a global monitor to maintain update
+atomicity. If your system does not implement a global monitor, this option can
+cause programs that perform SWP operations to uncached memory to deadlock, as
+the STREX operation will always fail.
+

arch/arm/Kconfig

@@ -2,6 +2,7 @@ config ARM
 	bool
 	default y
 	select HAVE_AOUT
+	select HAVE_DMA_API_DEBUG
 	select HAVE_IDE
 	select HAVE_MEMBLOCK
 	select RTC_LIB
@@ -36,6 +37,9 @@ config ARM
 config HAVE_PWM
 	bool
 
+config MIGHT_HAVE_PCI
+	bool
+
 config SYS_SUPPORTS_APM_EMULATION
 	bool
 
@@ -226,7 +230,7 @@ config ARCH_INTEGRATOR
 	bool "ARM Ltd. Integrator family"
 	select ARM_AMBA
 	select ARCH_HAS_CPUFREQ
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ICST
 	select GENERIC_CLOCKEVENTS
 	select PLAT_VERSATILE
@@ -236,7 +240,7 @@ config ARCH_INTEGRATOR
 config ARCH_REALVIEW
 	bool "ARM Ltd. RealView family"
 	select ARM_AMBA
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select HAVE_SCHED_CLOCK
 	select ICST
 	select GENERIC_CLOCKEVENTS
@@ -251,7 +255,7 @@ config ARCH_VERSATILE
 	bool "ARM Ltd. Versatile family"
 	select ARM_AMBA
 	select ARM_VIC
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select HAVE_SCHED_CLOCK
 	select ICST
 	select GENERIC_CLOCKEVENTS
@@ -266,7 +270,7 @@ config ARCH_VEXPRESS
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
 	select ARM_TIMER_SP804
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CLK
 	select HAVE_SCHED_CLOCK
@@ -288,7 +292,7 @@ config ARCH_BCMRING
 	depends on MMU
 	select CPU_V6
 	select ARM_AMBA
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	help
@@ -306,6 +310,7 @@ config ARCH_CNS3XXX
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select ARM_GIC
+	select MIGHT_HAVE_PCI
 	select PCI_DOMAINS if PCI
 	help
 	  Support for Cavium Networks CNS3XXX platform.
@@ -335,7 +340,7 @@ config ARCH_EP93XX
 	select CPU_ARM920T
 	select ARM_AMBA
 	select ARM_VIC
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_USES_GETTIMEOFFSET
@@ -355,14 +360,14 @@ config ARCH_MXC
 	bool "Freescale MXC/iMX-based"
 	select GENERIC_CLOCKEVENTS
 	select ARCH_REQUIRE_GPIOLIB
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	help
 	  Support for Freescale MXC/iMX-based family of processors
 
 config ARCH_STMP3XXX
 	bool "Freescale STMP3xxx"
 	select CPU_ARM926T
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select USB_ARCH_HAS_EHCI
@@ -442,6 +447,7 @@ config ARCH_IXP4XX
 	select GENERIC_GPIO
 	select GENERIC_CLOCKEVENTS
 	select HAVE_SCHED_CLOCK
+	select MIGHT_HAVE_PCI
 	select DMABOUNCE if PCI
 	help
 	  Support for Intel's IXP4XX (XScale) family of processors.
@@ -481,7 +487,7 @@ config ARCH_LPC32XX
 	select HAVE_IDE
 	select ARM_AMBA
 	select USB_ARCH_HAS_OHCI
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	help
@@ -515,7 +521,7 @@ config ARCH_MMP
 	bool "Marvell PXA168/910/MMP2"
 	depends on MMU
 	select ARCH_REQUIRE_GPIOLIB
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	select HAVE_SCHED_CLOCK
 	select TICK_ONESHOT
@@ -549,7 +555,7 @@ config ARCH_W90X900
 	bool "Nuvoton W90X900 CPU"
 	select CPU_ARM926T
 	select ARCH_REQUIRE_GPIOLIB
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
@@ -563,19 +569,19 @@ config ARCH_W90X900
 config ARCH_NUC93X
 	bool "Nuvoton NUC93X CPU"
 	select CPU_ARM926T
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	help
 	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
 	  low-power and high performance MPEG-4/JPEG multimedia controller chip.
 
 config ARCH_TEGRA
 	bool "NVIDIA Tegra"
+	select CLKDEV_LOOKUP
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_GPIO
 	select HAVE_CLK
 	select HAVE_SCHED_CLOCK
-	select COMMON_CLKDEV
 	select ARCH_HAS_BARRIERS if CACHE_L2X0
 	select ARCH_HAS_CPUFREQ
 	help
@@ -585,7 +591,7 @@ config ARCH_TEGRA
 config ARCH_PNX4008
 	bool "Philips Nexperia PNX4008 Mobile"
 	select CPU_ARM926T
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ARCH_USES_GETTIMEOFFSET
 	help
 	  This enables support for Philips PNX4008 mobile platform.
@@ -595,7 +601,7 @@ config ARCH_PXA
 	depends on MMU
 	select ARCH_MTD_XIP
 	select ARCH_HAS_CPUFREQ
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select HAVE_SCHED_CLOCK
@@ -774,7 +780,7 @@ config ARCH_TCC_926
 	bool "Telechips TCC ARM926-based systems"
 	select CPU_ARM926T
 	select HAVE_CLK
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Telechips TCC ARM926-based systems.
@@ -799,7 +805,7 @@ config ARCH_U300
 	select ARM_AMBA
 	select ARM_VIC
 	select GENERIC_CLOCKEVENTS
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_GPIO
 	help
 	  Support for ST-Ericsson U300 series mobile platforms.
@@ -809,7 +815,7 @@ config ARCH_U8500
 	select CPU_V7
 	select ARM_AMBA
 	select GENERIC_CLOCKEVENTS
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	help
 	  Support for ST-Ericsson's Ux500 architecture
@@ -819,7 +825,7 @@ config ARCH_NOMADIK
 	select ARM_AMBA
 	select ARM_VIC
 	select CPU_ARM926T
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	select ARCH_REQUIRE_GPIOLIB
 	help
@@ -831,7 +837,7 @@ config ARCH_DAVINCI
 	select ARCH_REQUIRE_GPIOLIB
 	select ZONE_DMA
 	select HAVE_IDE
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_ALLOCATOR
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	help
@@ -852,7 +858,7 @@ config PLAT_SPEAR
 	bool "ST SPEAr"
 	select ARM_AMBA
 	select ARCH_REQUIRE_GPIOLIB
-	select COMMON_CLKDEV
+	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CLK
 	help
@@ -1034,6 +1040,11 @@ config CPU_HAS_PMU
 	default y
 	bool
 
+config MULTI_IRQ_HANDLER
+	bool
+	help
+	  Allow each machine to specify it's own IRQ handler at run time.
+
 if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
@@ -1181,7 +1192,7 @@ config ISA_DMA_API
 	bool
 
 config PCI
-	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX || SA1100_NANOENGINE
+	bool "PCI support" if MIGHT_HAVE_PCI
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
 	  bus system, i.e. the way the CPU talks to the other stuff inside
@@ -1253,7 +1264,7 @@ config SMP
 config SMP_ON_UP
 	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
-	depends on SMP && !XIP && !THUMB2_KERNEL
+	depends on SMP && !XIP
 	default y
 	help
 	  SMP kernels contain instructions which fail on non-SMP processors.
@@ -1272,6 +1283,7 @@ config HAVE_ARM_SCU
 config HAVE_ARM_TWD
 	bool
 	depends on SMP
+	select TICK_ONESHOT
 	help
 	  This options enables support for the ARM timer and watchdog unit
 
@@ -1335,7 +1347,7 @@ config HZ
 	default 100
 
 config THUMB2_KERNEL
-	bool "Compile the kernel in Thumb-2 mode"
+	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
 	depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
 	select AEABI
 	select ARM_ASM_UNIFIED
@@ -1549,6 +1561,7 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
 	help
 	  This option turns on the -fstack-protector GCC feature. This
 	  feature puts, at the beginning of functions, a canary value on
@@ -1745,7 +1758,7 @@ config CPU_FREQ_S3C
 	  Internal configuration node for common cpufreq on Samsung SoC
 
 config CPU_FREQ_S3C24XX
-	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
+	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
 	select CPU_FREQ_S3C
 	help
@@ -1757,7 +1770,7 @@ config CPU_FREQ_S3C24XX
 	  If in doubt, say N.
 
 config CPU_FREQ_S3C24XX_PLL
-	bool "Support CPUfreq changing of PLL frequency"
+	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
 	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
 	help
 	  Compile in support for changing the PLL frequency from the

arch/arm/Kconfig.debug

@@ -31,7 +31,7 @@ config FRAME_POINTER
 	  reported is severely limited.
 
 config ARM_UNWIND
-	bool "Enable stack unwinding support"
+	bool "Enable stack unwinding support (EXPERIMENTAL)"
 	depends on AEABI && EXPERIMENTAL
 	default y
 	help

arch/arm/common/Kconfig

@@ -37,7 +37,3 @@ config SHARP_PARAM
 
 config SHARP_SCOOP
 	bool
-
-config COMMON_CLKDEV
-	bool
-	select HAVE_CLK