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* [ARM] 5227/1: Add the ENDPROC declarations to the .S filesCatalin Marinas2008-09-0158-50/+201
| | | | | | | | | This declaration specifies the "function" type and size for various assembly functions, mainly needed for generating the correct branch instructions in Thumb-2. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5222/1: Allow configuring user:kernel split via KconfigLennert Buytenhek2008-09-014-33/+34
| | | | | | | | | This patch adds a config option (CONFIG_VMSPLIT_*) to allow choosing between 3:1, 2:2 and 1:3 user:kernel memory splits. Tested-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5221/1: fix ldm/stm emulation for kprobesNicolas Pitre2008-09-011-2/+2
| | | | | | | Logic for the p bit was reversed. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5211/2: fix a couple warnings from BUG() usageNicolas Pitre2008-09-011-1/+1
| | | | | | | | | | | | | | | | | | When CONFIG_DEBUG_BUGVERBOSE is not set, we get warnings such as: arch/arm/mm/ioremap.c: In function ‘remap_area_pte’: arch/arm/mm/ioremap.c:67: warning: control reaches end of non-void function mm/bootmem.c: In function ‘mark_bootmem’: mm/bootmem.c:321: warning: control reaches end of non-void function fs/dcache.c: In function ‘d_materialise_unique’: fs/dcache.c:1875: warning: control reaches end of non-void function fs/nfs/client.c: In function ‘nfs_sockaddr_match_ipaddr’: fs/nfs/client.c:251: warning: control reaches end of non-void function block/cfq-iosched.c: In function ‘cfq_async_queue_prio’: block/cfq-iosched.c:1501: warning: control reaches end of non-void function Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5218/1: arm: improved futex supportMikael Pettersson2008-09-011-3/+121
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux/ARM currently doesn't support robust or PI futexes. The problem is that the kernel wants to perform certain ops (cmpxchg, set, add, or, andn, xor) atomically on user-space addresses, and ARM's futex.h doesn't support that. This patch adds that support, but only for uniprocessor machines. For UP it's enough to disable preemption to ensure mutual exclusion with other software agents (futexes don't need to care about other hardware agents, fortunately). This patch is based on one posted by Khem Raj on 2007-08-01 <http://marc.info/?l=linux-arm-kernel&m=118599407413016&w=2>. (That patch is included in the -RT kernel patches.) My changes since that version include: * corrected implementation of FUTEX_OP_ANDN (must complement oparg) * added missing memory clobber to futex_atomic_cmpxchg_inatomic() * removed spinlock because it's unnecessary for UP and insufficient for SMP, instead the code is restricted to UP and relies on the fact that pagefault_disable() also disables preemption * coding style cleanups Tested on ARMv5 XScales with the glibc-2.6 nptl test suite. Tested-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5206/1: remove kprobe_trap_handler() hackNicolas Pitre2008-09-013-14/+4
| | | | | | | | | As mentioned in commit 796969104cab0d454dbc792ad0d12a4f365a8564, and because of commit b03a5b7559563dafdbe52f8b5d8e453a914db941, the direct calling of kprobe_trap_handler() can be removed. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes, add cpuidleRussell King2008-09-011-4/+14
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5195/1: ARMv7 Oprofile supportJean PIHET2008-09-017-0/+527
| | | | | | | | Add Oprofile kernel support for ARMv7. Tested on OMAP3430 and OMAP3530 chipsets (Cortex-A8). Signed-off-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] cachetype: move definitions to separate headerRussell King2008-09-017-90/+101
| | | | | | | | Rather than pollute asm/cacheflush.h with the cache type definitions, move them to asm/cachetype.h, and include this new header where necessary. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] cputype: separate definitions, use themRussell King2008-09-0117-111/+130
| | | | | | | | Add asm/cputype.h, moving functions and definitions from asm/system.h there. Convert all users of 'processor_id' to the more efficient read_cpuid_id() function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [x86] Clean up MAXSMP Kconfig, and limit NR_CPUS to 512Linus Torvalds2008-08-251-22/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a regression that was indirectly caused by commit 1184dc2ffe2c8fb9afb766d870850f2c3165ef25 ("x86: modify Kconfig to allow up to 4096 cpus"). Allowing 4k CPU's is not practical at this time, because we still have a number of places that have several 'cpumask_t's on the stack, and a 4k-bit cpumask is 512 bytes of stack-space for each such variable. This literally caused functions like 'smp_call_function_mask' to have a 2.5kB stack frame, and several functions to have 2kB stackframes. With an 8kB stack total, smashing the stack was simply much too likely. At least bugzilla entry http://bugzilla.kernel.org/show_bug.cgi?id=11342 was due to this. The earlier commit to not inline load_module() into sys_init_module() fixed the particular symptoms of this that Alan Brunelle saw in that bugzilla entry, but the huge stack waste by cpumask_t's was the more direct cause. Some day we'll have allocation helpers that allocate large CPU masks dynamically, but in the meantime we simply cannot allow cpumasks this large. Cc: Alan D. Brunelle <Alan.Brunelle@hp.com> Cc: Mike Travis <travis@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-08-255-20/+139
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: add X86_FEATURE_XMM4_2 definitions x86: fix cpufreq + sched_clock() regression x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3 x86: do not enable TSC notifier if we don't need it x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs x86: fix: make PCI ECS for AMD CPUs hotplug capable x86: fix: do not run code in amd_bus.c on non-AMD CPUs
| * x86: fix cpufreq + sched_clock() regressionPeter Zijlstra2008-08-251-1/+1
| | | | | | | | | | | | | | | | | | I noticed that my sched_clock() was slow on a number of machine, so I started looking at cpufreq. The below seems to fix the problem for me. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'linus' into x86/urgentIngo Molnar2008-08-2548-1719/+606
| |\
| * | x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3Yinghai Lu2008-08-251-0/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | David Witbrodt tracked down (and bisected) a hpet bootup hang on his system to the following problem: a BIOS bug made the hpet device visible as a generic PCI device. If e820 reserved entries happen to be registered first in the resource tree [which v2.6.26 started doing], then the PCI code will reallocate that device's BAR to some other address - breaking timer IRQs and hanging the system. ( Normally hpet devices are hidden by the BIOS from the OS's PCI discovery via chipset magic. Sometimes the hpet is not a PCI device at all. ) Solve this fundamental fragility by making non-PCI platform drivers insert resources into the resource tree even if it overlaps the e820 reserved entry, to keep the resource manager from updating the BAR. Also do these checks for the ioapic and mmconfig addresses, and emit a warning if this happens. Bisected-by: David Witbrodt <dawitbro@sbcglobal.net> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Tested-by: David Witbrodt <dawitbro@sbcglobal.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: do not enable TSC notifier if we don't need itLinus Torvalds2008-08-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: crash on non-TSC-equipped CPUs Don't enable the TSC notifier if we *either*: 1. don't have a CPU, or 2. have a CPU with constant TSC. In either of those cases, the notifier is either damaging (1) or useless(2). From: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUsRafael J. Wysocki2008-08-232-13/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During CPU hot-remove the sysfs directory created by threshold_create_bank(), defined in arch/x86/kernel/cpu/mcheck/mce_amd_64.c, has to be removed before its parent directory, created by mce_create_device(), defined in arch/x86/kernel/cpu/mcheck/mce_64.c . Moreover, when the CPU in question is hotplugged again, obviously the latter has to be created before the former. At present, the right ordering is not enforced, because all of these operations are carried out by CPU hotplug notifiers which are not appropriately ordered with respect to each other. This leads to serious problems on systems with two or more multicore AMD CPUs, among other things during suspend and hibernation. Fix the problem by placing threshold bank CPU hotplug callbacks in mce_cpu_callback(), so that they are invoked at the right places, if defined. Additionally, use kobject_del() to remove the sysfs directory associated with the kobject created by kobject_create_and_add() in threshold_create_bank(), to prevent the kernel from crashing during CPU hotplug operations on systems with two or more multicore AMD CPUs. This patch fixes bug #11337. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Andi Kleen <andi@firstfloor.org> Tested-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: fix: make PCI ECS for AMD CPUs hotplug capableRobert Richter2008-08-231-4/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now, PCI ECS setup was performed at boot time only and for cpus that are enabled then. This patch fixes this and adds cpu hotplug. Tests sequence (check if ECS bit is set when bringing cpu online again): # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00404010 # ( perl -e 'sysseek(STDOUT, 0xC001001F, 0); print pack "l*", 8, 0x00400010' ) > /dev/cpu/1/msr # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00400010 # echo 0 > /sys/devices/system/cpu/cpu1/online # echo 1 > /sys/devices/system/cpu/cpu1/online # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00404010 Reported-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: fix: do not run code in amd_bus.c on non-AMD CPUsRobert Richter2008-08-231-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jan Beulich wrote: > Even worse - this would even try to access the MSR on non-AMD CPUs > (currently probably prevented just by the fact that only AMD ones use > family values of 0x10 or higher). This patch adds cpu vendor check to the postcore_initcalls. Reported-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | KVM: MMU: Fix torn shadow pteAvi Kivity2008-08-251-1/+1
| |/ |/| | | | | | | | | | | The shadow code assigns a pte directly in one place, which is nonatomic on i386 can can cause random memory references. Fix by using an atomic setter. Signed-off-by: Avi Kivity <avi@qumranet.com>
* | removed unused #include <linux/version.h>'sAdrian Bunk2008-08-235-6/+0
| | | | | | | | | | | | | | | | This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-08-2219-94/+165
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: work around MTRR mask setting, v2 x86: fix section mismatch warning - uv_cpu_init x86: fix VMI for early params x86: fix two modpost warnings in mm/init_64.c x86: fix 1:1 mapping init on 64-bit (memory hotplug case) x86: work around MTRR mask setting x86: PAT Update validate_pat_support for intel CPUs devmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUS x86: PAT proper tracking of set_memory_uc and friends x86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable) x86: export pv_lock_ops non-GPL x86, mmiotrace: silence section mismatch warning - leave_uniprocessor x86: use WARN() in arch/x86/kernel x86: use WARN() in arch/x86/mm/ioremap.c werror: fix pci calgary x86: fix oprofile + hibernation badness x86, SGI UV: hardcode the TLB flush interrupt system vector x86: fix Xorg startup/shutdown slowdown with PAT x86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)" x86 iommu: remove unneeded parenthesis
| * x86: work around MTRR mask setting, v2Ingo Molnar2008-08-221-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | improve the debug printout: - make it actually display something - print it only once would be nice to have a WARN_ONCE() facility, to feed such things to kerneloops.org. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix section mismatch warning - uv_cpu_initMarcin Slusarz2008-08-222-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: vmlinux.o(.cpuinit.text+0x3cc4): Section mismatch in reference from the function uv_cpu_init() to the function .init.text:uv_system_init() The function __cpuinit uv_cpu_init() references a function __init uv_system_init(). If uv_system_init is only used by uv_cpu_init then annotate uv_system_init with a matching annotation. uv_system_init was ment to be called only once, so do it from codepath (native_smp_prepare_cpus) which is called once, right before activation of other cpus (smp_init). Note: old code relied on uv_node_to_blade being initialized to 0, but it'a not initialized from anywhere. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix VMI for early paramsAlok Kataria2008-08-221-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | while fixing a different bug i moved the call to vmi_init before early params could be parsed. This broke the vmi specific commandline parameters. Fix that, by moving vmi initialization after kernel has got a chance to parse early parameters. Signed-off-by: Alok N Kataria <akataria@vmware.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix two modpost warnings in mm/init_64.cJan Beulich2008-08-221-2/+2
| | | | | | | | | | | | | | | | early_io{re,un}map() are __init and hence can't be called from __meminit functions. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix 1:1 mapping init on 64-bit (memory hotplug case)Jan Beulich2008-08-221-14/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While I don't have a hotplug capable system at hand, I think two issues need fixing: - pud_phys (in kernel_physical_ampping_init()) would remain uninitialized in the after_bootmem case - the locking done just around phys_pmd_{init,update}() would leave out pgd updates, and it was needlessly covering code portions that do allocations (perhaps using a more friendly gfp value in alloc_low_page() would then be possible) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: work around MTRR mask settingYinghai Lu2008-08-221-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Joshua Hoblitt reported that only 3 GB of his 16 GB of RAM is usable. Booting with mtrr_show showed us the BIOS-initialized MTRR settings - which are all wrong. So the root cause is that the BIOS has not set the mask correctly: > [ 0.429971] MSR00000200: 00000000d0000000 > [ 0.433305] MSR00000201: 0000000ff0000800 > should be ==> [ 0.433305] MSR00000201: 0000003ff0000800 > > [ 0.436638] MSR00000202: 00000000e0000000 > [ 0.439971] MSR00000203: 0000000fe0000800 > should be ==> [ 0.439971] MSR00000203: 0000003fe0000800 > > [ 0.443304] MSR00000204: 0000000000000006 > [ 0.446637] MSR00000205: 0000000c00000800 > should be ==> [ 0.446637] MSR00000205: 0000003c00000800 > > [ 0.449970] MSR00000206: 0000000400000006 > [ 0.453303] MSR00000207: 0000000fe0000800 > should be ==> [ 0.453303] MSR00000207: 0000003fe0000800 > > [ 0.456636] MSR00000208: 0000000420000006 > [ 0.459970] MSR00000209: 0000000ff0000800 > should be ==> [ 0.459970] MSR00000209: 0000003ff0000800 So detect this borkage and add the prefix 111. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: PAT Update validate_pat_support for intel CPUsvenkatesh.pallipadi@intel.com2008-08-211-2/+15
| | | | | | | | | | | | | | | | | | | | Pentium III and Core Solo/Duo CPUs have an erratum " Page with PAT set to WC while associated MTRR is UC may consolidate to UC " which can result in WC setting in PAT to be ineffective. We will disable PAT on such CPUs, so that we can continue to use MTRR WC setting. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * devmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUSvenkatesh.pallipadi@intel.com2008-08-211-12/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | All kernel mappings like ioremap(), etc uses UC_MINUS as the type. /dev/mem mappings with /dev/mem being opened with O_SYNC however was using UC, resulting in a conflict with /dev/mem mmap failing. This seems to be affecting some apps (one being flashrom) which are using O_SYNC and which were working before. Switch /dev/mem with O_SYNC also to UC_MINUS. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: PAT proper tracking of set_memory_uc and friendsvenkatesh.pallipadi@intel.com2008-08-211-3/+3
| | | | | | | | | | | | | | | | | | Big thinko in pat memtype tracking code. reserve_memtype should be called with physical address and not virtual address. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable)Vegard Nossum2008-08-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This section mismatch: >> Seems to be a section mismatch; init_intel() is __cpuinit while >> numaq_tsc_disable() is __init. Seems to be introduced in: >> >> commit 64898a8bad8c94ad7a4bd5cc86b66edfbb081f4a >> Author: Yinghai Lu <yhlu.kernel@gmail.com> >> Date: Sat Jul 19 18:01:16 2008 -0700 >> >> x86: extend and use x86_quirks to clean up NUMAQ code > > Oops, I am wrong about numaq_tsc_disable() being __init. Still, I > believe that Yinghai might be able to say what's really wrong :-) Would lead to this crash: BUG: unable to handle kernel paging request at c08a45f0 IP: [<c08a45f0>] numaq_tsc_disable+0x0/0x40 Fixed by the patch below. Signed-off-by: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: export pv_lock_ops non-GPLJeremy Fitzhardinge2008-08-211-1/+1
| | | | | | | | | | | | | | | | | | None of the spinlock API is exported GPL, so there's no reason for pv_lock_ops to be. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: drago01 <drago01@gmail.com>
| * x86, mmiotrace: silence section mismatch warning - leave_uniprocessorMarcin Slusarz2008-08-211-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: vmlinux.o(.text+0x180af): Section mismatch in reference from the function leave_uniprocessor() to the function .cpuinit.text:cpu_up() The function leave_uniprocessor() references the function __cpuinit cpu_up(). This is often because leave_uniprocessor lacks a __cpuinit annotation or the annotation of cpu_up is wrong. leave_uniprocessor calls cpu_up only when CONFIG_HOTPLUG_CPU is set, so it can be safely annotated as __ref Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Pekka Paalanen <pq@iki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Ingo Molnar <mingo@elte.hu> Cc: Pekka Paalanen <pq@iki.fi>
| * x86: use WARN() in arch/x86/kernelArjan van de Ven2008-08-213-10/+4
| | | | | | | | | | | | | | | | | | | | Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. This also allowed the folding of some if()'s into the WARN() Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: akpm@linux-foundation.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: use WARN() in arch/x86/mm/ioremap.cArjan van de Ven2008-08-211-5/+3
| | | | | | | | | | | | | | | | | | Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: akpm@linux-foundation.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * werror: fix pci calgaryDavid Howells2008-08-211-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix an integer comparison always false warning in the PCI Calgary 64 driver. A u8 is being compared to something that's 512 by default, resulting in the following warning: arch/x86/kernel/pci-calgary_64.c:1285: warning: comparison is always false due to limited range of data type This was introduced by patch b34e90b8f0f30151349134f87b5dc6ef75a5218c. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix oprofile + hibernation badnessAndi Kleen2008-08-201-3/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Vegard Nossum reported oprofile + hibernation problems: > Now some warnings: > > ------------[ cut here ]------------ > WARNING: at /uio/arkimedes/s29/vegardno/git-working/linux-2.6/kernel/smp.c:328 s > mp_call_function_mask+0x194/0x1a0() The usual problem: the suspend function when interrupts are already disabled calls smp_call_function which is not allowed with interrupt off. But at this point all the other CPUs should be already down anyways, so it should be enough to just drop that. This patch should fix that problem at least by fixing cpu hotplug& suspend support. [ mingo@elte.hu: fixed 5 coding style errors. ] Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, SGI UV: hardcode the TLB flush interrupt system vectorCliff Wickman2008-08-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The UV TLB shootdown mechanism needs a system interrupt vector. Its vector had been hardcoded as 200, but needs to moved to the reserved system vector range so that it does not collide with some device vector. This is still temporary until dynamic system IRQ allocation is provided. But it will be needed when real UV hardware becomes available and runs 2.6.27. Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix Xorg startup/shutdown slowdown with PATVenki Pallipadi2008-08-201-2/+31
| | | | | | | | | | | | | | | | | | | | | | | | Rene Herman reported significant Xorg startup/shutdown slowdown due to PAT. It turns out that the memtype list has thousands of entries. Add cached_entry to list add routine, in order to speed up the lookup for sequential reserve_memtype calls. Reported-by: Rene Herman <rene.herman@keyaccess.nl> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)"Samuel Sieb2008-08-201-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cyrix MediaGXm/Cx5530 Unicorn Revision 1.19.3B has stopped booting starting at v2.6.22. The reason is this commit: > commit f25f64ed5bd3c2932493681bdfdb483ea707da0a > Author: Juergen Beisert <juergen@kreuzholzen.de> > Date: Sun Jul 22 11:12:38 2007 +0200 > > x86: Replace NSC/Cyrix specific chipset access macros by inlined functions. this commit activated a macro which was dormant before due to (buggy) macro side-effects. I've looked through various datasheets and found that the GXm and GXLV Geode processors don't have an incrementor. Remove the incrementor setup entirely. As the incrementor value differs according to clock speed and we would hope that the BIOS configures it correctly, it is probably the right solution. Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86 iommu: remove unneeded parenthesisJiri Kosina2008-08-191-1/+1
| | | | | | | | | | | | | | | | The parenthesis in __iommu_queue_command() are not needed when assigning into 'target' variable. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-08-219-61/+160
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5212/1: pxa: fix build error when CPU_PXA310 is not defined [ARM] 5208/1: fsg-setup.c fixes [ARM] fix impd1.c build warning [ARM] e400 config use MFP [ARM] e740 config use MFP [ARM] Fix eseries IRQ limit [ARM] clocklib: Update users of aliases to new API [ARM] clocklib: Allow dynamic alias creation [ARM] eseries: whitespace fixes and cleanup
| * | [ARM] 5212/1: pxa: fix build error when CPU_PXA310 is not definedMike Rapoport2008-08-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix arch/arm/mach-pxa/pxa300.c:94: error: 'CKEN_MMC3' undeclared here (not in a function) when building for PXA300. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 5208/1: fsg-setup.c fixesTomasz Chmielewski2008-08-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch against 2.6.27-rc3 does the following changes to FSG-3 setup code: 1) Enable RTC on FSG-3 (proper name is needed). This change is needed due to a recent change in i2c. 2) i variable is only used when compiling for big endian. So move its declaration to ARMEB ifdef to silence the warning when compiling for LE. Mailing list link: http://lists.arm.linux.org.uk/lurker/message/20080813.091556.cae2917e.en.html Signed-off-by: Tomasz Chmielewski <mangoo@wpkg.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Merge branch 'for_rmk_17' of git://git.mnementh.co.uk/linux-2.6-imRussell King2008-08-186-58/+155
| |\ \
| | * | [ARM] e400 config use MFPIan Molton2008-08-121-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | This patch updates e400 to use the new MFP GPIO setup code. Signed-off-by: Ian Molton <spyro@f2s.com>
| | * | [ARM] e740 config use MFPIan Molton2008-08-121-1/+49
| | | | | | | | | | | | | | | | | | | | | | | | This patch updates e740 to use the new MFP GPIO setup code. Signed-off-by: Ian Molton <spyro@f2s.com>
| | * | [ARM] Fix eseries IRQ limitIan Molton2008-08-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The max IRQ is too small for all e-series machines which have at least one GPIO expander chip in them. Signed-off-by: Ian Molton <spyro@f2s.com>
| | * | [ARM] clocklib: Update users of aliases to new APIIan Molton2008-08-122-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the hardcoded alias array from pxa25x.c and reimplements its functionality using the new clock alias call. Signed-off-by: Ian Molton <spyro@f2s.com>
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