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2009-04-09sh: Add support for DMA API debugging.Paul Mundt
This wires up support for the generic DMA API debugging. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-09MN10300: Convert obsolete no_irq_type to no_irq_chipThomas Gleixner
Convert the last remaining users to no_irq_chip. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09mutex: have non-spinning mutexes on s390 by defaultHeiko Carstens
Impact: performance regression fix for s390 The adaptive spinning mutexes will not always do what one would expect on virtualized architectures like s390. Especially the cpu_relax() loop in mutex_spin_on_owner might hurt if the mutex holding cpu has been scheduled away by the hypervisor. We would end up in a cpu_relax() loop when there is no chance that the state of the mutex changes until the target cpu has been scheduled again by the hypervisor. For that reason we should change the default behaviour to no-spin on s390. We do have an instruction which allows to yield the current cpu in favour of a different target cpu. Also we have an instruction which allows us to figure out if the target cpu is physically backed. However we need to do some performance tests until we can come up with a solution that will do the right thing on s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> LKML-Reference: <20090409184834.7a0df7b2@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-09x86: cpu_debug remove execute permissionJaswinder Singh Rajput
It seems by mistake these files got execute permissions so removing it. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> LKML-Reference: <1239211186.9037.2.camel@ht.satnam> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-09tracing/syscalls: use a dedicated file headerFrederic Weisbecker
Impact: fix build warnings and possibe compat misbehavior on IA64 Building a kernel on ia64 might trigger these ugly build warnings: CC arch/ia64/ia32/sys_ia32.o In file included from arch/ia64/ia32/sys_ia32.c:55: arch/ia64/ia32/ia32priv.h:290:1: warning: "elf_check_arch" redefined In file included from include/linux/elf.h:7, from include/linux/module.h:14, from include/linux/ftrace.h:8, from include/linux/syscalls.h:68, from arch/ia64/ia32/sys_ia32.c:18: arch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition [...] sys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h to import the syscalls tracing prototypes. But including ftrace.h can pull too much things for a low level file, especially on ia64 where the ia32 private headers conflict with higher level headers. Now we isolate the syscall tracing headers in their own lightweight file. Reported-by: Tony Luck <tony.luck@intel.com> Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Jason Baron <jbaron@redhat.com> Cc: "Frank Ch. Eigler" <fche@redhat.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Jiaying Zhang <jiayingz@google.com> Cc: Michael Rubin <mrubin@google.com> Cc: Martin Bligh <mbligh@google.com> Cc: Michael Davidson <md@google.com> LKML-Reference: <20090408184058.GB6017@nowhere> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-08xen: add FIX_TEXT_POKE to fixmapJeremy Fitzhardinge
FIX_TEXT_POKE[01] are used to map kernel addresses, so they're mapping pfns, not mfns. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Hook up sys_preadv and sys_pwritev sparc64: add_node_ranges() must be __init serial: sunsu: sunsu_kbd_ms_init needs to be __devinit sparc: Fix section mismatch warnings in cs4231 sound driver. sparc64: Fix section mismatch warnings in PCI controller drivers. sparc64: Fix section mismatch warnings in power driver. sparc64: get_cells() can't be marked __init
2009-04-08Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] wire up preadv/pwritev system calls
2009-04-08Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: x86 ACPI: Add support for Always Running APIC timer ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf ACPICA: delete check for AML access to port 0x81-83 ACPI: WMI: use .notify method instead of installing handler directly sony-laptop: use .notify method instead of installing handler directly panasonic-laptop: use .notify method instead of installing handler directly fujitsu-laptop: use .notify method instead of installing hotkey handler directly fujitsu-laptop: use .notify method instead of installing handler directly ACPI: video: use .notify method instead of installing handler directly ACPI: thermal: use .notify method instead of installing handler directly ACPI battery: fix async boot oops ACPI: delete acpi_device.g_list NULL noise: drivers/platform/x86/panasonic-laptop.c ACPI: cpufreq: remove dupilcated #include ACPI: Adjust Kelvin offset to match local implementation ACPI: convert acpi_device_lock spinlock to mutex
2009-04-08Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array [ARM] 5445/1: AT91: Remove flexible array from USBH platform data [ARM] 5447/1: Add SZ_32K [ARM] omap: fix omap1 clock usecount decrement bug [ARM] pxa: register AC97 controller devices [ARM] pxa/csb701: do not register devices on non-csb726 boads [ARM] pxa/colibri: get rid of set_irq_type() [ARM] pxa/colibri: provide MAC address from ATAG_SERIAL [ARM] pxa/cm-x2xx: fix ucb1400 not being registered [ARM] pxa: Add support for suspend on PalmTX, T5 and LD [ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight [ARM] pxa: Palm Tungsten E2 basic support [ARM] pxa/em-x270: add libertas device registration [ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
2009-04-08xen: clean up gate trap/interrupt constantsJeremy Fitzhardinge
Use GATE_INTERRUPT/TRAP rather than 0xe/f. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: set _PAGE_NX in __supported_pte_mask before pagetable constructionJeremy Fitzhardinge
Some 64-bit machines don't support the NX flag in ptes. Check for NX before constructing the kernel pagetables. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen/mmu: weaken flush_tlb_other testJeremy Fitzhardinge
Impact: fixes crashing bug There's no particular problem with getting an empty cpu mask, so just shortcut-return if we get one. Avoids crash reported by Christophe Saout <christophe@saout.de> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen/mmu: some early pagetable cleanupsJeremy Fitzhardinge
1. make sure early-allocated ptes are pinned, so they can be later unpinned 2. don't pin pmd+pud, just make them RO 3. scatter some __inits around Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08[IA64] wire up preadv/pwritev system callsTony Luck
Gerd Hoffmann added these to Linux. Let ia64 use them. Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-04-08[ARM] 5445/1: AT91: Remove flexible array from USBH platform dataJustin Waters
The flexible array in the USBH platform data is not safe to copy. The compiler will not allocate any extra memory for the non-init platform data structure (in the *_devices.c files) since it isn't given any defaults at compile time. When the probe function attempts to address that array, it will actually attempt to access data in an adjacent structure. Since there are currently no (known) implementations of the at91 USBH IP with more than 2 vbus pins, I am capping the value at 2. If somebody tries to assign more, then the compiler will produce a warning. Signed-off-by: Justin Waters <justin.waters@timesys.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-08[ARM] 5447/1: Add SZ_32KLinus Walleij
This adds a SZ_32K define to the available sizes. I need it for an upcoming platform support. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-08Xen: Add virt_to_pfn helper functionAlex Nixon
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
2009-04-08x86-64: remove PGE from must-have feature listJeremy Fitzhardinge
PGE may not be available when running paravirtualized, so test the cpuid bit before using it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: mask XSAVE from cpuidJeremy Fitzhardinge
Xen leaves XSAVE set in cpuid, but doesn't allow cr4.OSXSAVE to be set. This confuses the kernel and it ends up crashing on an xsetbv instruction. At boot time, try to set cr4.OSXSAVE, and mask XSAVE out of cpuid it we can't. This will produce a spurious error from Xen, but allows us to support XSAVE if/when Xen does. This also factors out the cpuid mask decisions to boot time. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08NULL noise: arch/x86/xen/smp.cHannes Eder
Fix this sparse warnings: arch/x86/xen/smp.c:316:52: warning: Using plain integer as NULL pointer arch/x86/xen/smp.c:421:60: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: remove xen_load_gdt debugJeremy Fitzhardinge
Don't need the noise. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: make xen_load_gdt simplerJeremy Fitzhardinge
Remove use of multicall machinery which is unused (gdt loading is never performance critical). This removes the implicit use of percpu variables, which simplifies understanding how the percpu code's use of load_gdt interacts with this code. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: clean up xen_load_gdtJeremy Fitzhardinge
Makes the logic a bit clearer. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: split construction of p2m mfn tables from registrationJeremy Fitzhardinge
Build the p2m_mfn_list_list early with the rest of the p2m table, but register it later when the real shared_info structure is in place. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: separate p2m allocation from settingJeremy Fitzhardinge
When doing very early p2m setting, we need to separate setting from allocation, so split things up accordingly. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08xen: disable preempt for leave_lazy_mmuJeremy Fitzhardinge
xen_mc_flush() requires preemption to be disabled for its own sanity, so disable it while we're flushing. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-04-08x86: smarten /proc/interrupts output for new countersHidetoshi Seto
Now /proc/interrupts of tip tree has new counters: PLT: Platform interrupts Format change of output, as like that by commit: commit 7a81d9a7da03d2f27840d659f97ef140d032f609 x86: smarten /proc/interrupts output should be applied to these new counters too. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Jan Beulich <jbeulich@novell.com> LKML-Reference: <49C98DEA.8060208@jp.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-08Merge commit 'v2.6.30-rc1' into x86/urgentIngo Molnar
Merge reason: fix to be queued up depends on upstream facilities Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-08x86: DMI match for the Dell DXP061 as it needs BIOS rebootAlan Cox
Closes http://bugzilla.kernel.org/show_bug.cgi?12901 Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> LKML-Reference: <20090326204524.4454.8776.stgit@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-08x86: make 64 bit to use default_inquire_remote_apicYinghai Lu
Impact: restore old behavior for flat and phys_flat Signed-off-by: Yinhai Lu <yinghai@kernel.org. LKML-Reference: <49DCBBF1.8080903@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-08sparc: Hook up sys_preadv and sys_pwritevDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08sparc64: add_node_ranges() must be __initDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08sparc64: Fix section mismatch warnings in PCI controller drivers.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08sparc64: Fix section mismatch warnings in power driver.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08sparc64: get_cells() can't be marked __initDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08Merge branch 'next' into for-linusDmitry Torokhov
2009-04-07sh: Provide cpumask_of_pcibus() to fix NUMA build.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-07Merge branches 'release', 'APERF', 'ARAT', 'misc', 'kelvin', 'device-lock' ↵Len Brown
and 'bjorn.notify' into release
2009-04-07x86 ACPI: Add support for Always Running APIC timerVenkatesh Pallipadi
Add support for Always Running APIC timer, CPUID_0x6_EAX_Bit2. This bit means the APIC timer continues to run even when CPU is in deep C-states. The advantage is that we can use LAPIC timer on these CPUs always, and there is no need for "slow to read and program" external timers (HPET/PIT) and the timer broadcast logic and related code in C-state entry and exit. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_onlyVenkatesh Pallipadi
Do not write zeroes to APERF and MPERF by ondemand governor. With this change, other users can share these MSRs for reads. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperfVenkatesh Pallipadi
Change structure name to make the code cleaner and simpler. No functionality change in this patch. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y branch tracer: Fix for enabling branch profiling makes sparse unusable ftrace: Correct a text align for event format output Update /debug/tracing/README tracing/ftrace: alloc the started cpumask for the trace file tracing, x86: remove duplicated #include ftrace: Add check of sched_stopped for probe_sched_wakeup function-graph: add proper initialization for init task tracing/ftrace: fix missing include string.h tracing: fix incorrect return type of ns2usecs() tracing: remove CALLER_ADDR2 from wakeup tracer blktrace: fix pdu_len when tracing packet command requests blktrace: small cleanup in blk_msg_write() blktrace: NUL-terminate user space messages tracing: move scripts/trace/power.pl to scripts/tracing/power.pl
2009-04-07x86, setup: un-resequence mode setting for VGA 80x34 and 80x60 modesH. Peter Anvin
Impact: Fixes these modes on at least one system The rewrite of the setup code into C resequenced the font setting and register reprogramming phases of configuring nonstandard VGA modes which use 480 scan lines in text mode. However, there exists at least one board (Micro-Star MS-7383 version 2.0) on which this resequencing causes an unusable display. Revert to the original sequencing: set up 480-line mode, install the font, and then adjust the vertical end register appropriately. This failure was masked by the fact that the 480-line setup was broken until checkin 5f641356127712fbdce0eee120e5ce115860c17f (therefore this is not a -stable candidate bug fix.) Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2009-04-07sh: urquell: Add board commentKuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-07Merge branch 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds
* 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c: imx: Make disable_delay a per-device variable i2c: xtensa s6000 i2c driver powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board i2c: i2c-mpc: make I2C bus speed configurable i2c: i2c-mpc: use dev based printout function i2c: i2c-mpc: various coding style fixes i2c: imx: Add missing request_mem_region in probe() i2c: i2c-s3c2410: Initialise Samsung I2C controller early i2c-s3c2410: Simplify bus frequency calculation i2c-s3c2410: sda_delay should be in ns, not clock ticks i2c: iMX/MXC support
2009-04-07tty: Blackin CTS/RTSSonic Zhang
Both software emulated and hardware based CTS and RTS are enabled in serial driver. The CTS RTS PIN connection on BF548 UART port is defined as a modem device not as a host device. In order to test it under Linux, please nake a cross UART cable to exchange CTS and RTS signal. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07Change hardware flow control from poll to interrupt drivenSonic Zhang
Only the CTS bit is affected. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07tty: Use the generic RS485 ioctl on CRISClaudio Scordino
Use the new general RS485 Linux data structure (introduced by Alan with commit number c26c56c0f40e200e61d1390629c806f6adaffbcc) in the Cris architecture too (currently, Cris still uses the old private data structure instead of the new one). Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Tested-by: Hinko Kocevar <hinko.kocevar@cetrtapot.si> Tested-by: Janez Cufer <janez.cufer@cetrtapot.si> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24)Yang Hongyang
Replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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