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2007-01-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: mmc: Correct definition of R6 omap: Update MMC response types
2007-01-22Revert "[PATCH] Fix up mmap_kmem"Linus Torvalds
This reverts commit 99a10a60ba9bedcf5d70ef81414d3e03816afa3f. As per Hugh Dickins: "Nadia Derbey has reported that mmap of /dev/kmem no longer works with the kernel virtual address as offset, and Franck has confirmed that his patch came from a misunderstanding of what an offset means to /dev/kmem - whereas his patch description seems to say that he was correcting the offset on a few plaforms, there was no such problem to correct, and his patch was in fact changing its API on all platforms." Suggested-by: Hugh Dickins <hugh@veritas.com> Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Cc: Andi Kleen <ak@suse.de> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-15mmc: Correct definition of R6Philip Langdale
During development of SDHC support, it was discovered that the definition for R6 was incorrect. This patch fixes that and patches the drivers that do switch on the response type. Signed-off-by: Philip Langdale <philipl@overt.org> Cc: Alex Dubov <oakad@yahoo.com> Cc: Pavel Pisa <ppisa@pikron.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-15omap: Update MMC response typesCarlos Eduardo Aguiar
This patch is a fix in order to update MMC response types. This modification is needed to allow SD card support on OMAP platforms. Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br> Signed-off-by: Yuha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-12Linux v2.6.20-rc5Linus Torvalds
2007-01-12[PATCH] blktrace: only add a bounce trace when we really bounceJens Axboe
Currently we issue a bounce trace when __blk_queue_bounce() is called, but that merely means that the device has a lower dma mask than the higher pages in the system. The bio itself may still be lower pages. So move the bounce trace into __blk_queue_bounce(), when we know there will actually be page bouncing. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid: HID: Fix DRIVER_DESC macro HID: mousepoll parameter makes no sense for generic HID HID: tiny patch to remove a kmalloc cast HID: fix mappings for DiNovo Edge Keyboard - Logitech USB BT receiver
2007-01-11Merge 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: Revert "ACPI: ibm-acpi: make non-generic bay support optional" ACPI: update MAINTAINERS ACPI: schedule obsolete features for deletion ACPI: delete two spurious ACPI messages ACPI: rename cstate_entry_s to cstate_entry ACPI: ec: enable printk on cmdline use ACPI: Altix: ACPI _PRT support
2007-01-11Merge branch 'drm-patches' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: i915: Fix a DRM_ERROR that should be DRM_DEBUG.
2007-01-11[PATCH] PCMCIA: fix drivers broken by recent cleanupDaniel Ritz
Setting .ConfigBase and .Present is now done at the pcmcia core. The driver cleanup missed a few places where the driver did set .Present to PRESENT_OPTION and later to the values from the CIS. Setting to PRESENT_OPTION now overrides the values from the CIS. So just remove those lines. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] FD_ZERO build fixAndrew Morton
unionfs managed to hit this on s390. Some architectures use __ptr_t in their FD_ZERO implementation. We don't have a __ptr_t. Switch them over to plain old void*. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] fix typo in geode_configre()@cyrix.ctakada
We write back the wrong register when configuring the Geode processor. Instead of storing to CCR4, it stores to CCR3. Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] Fix HWRNG built-in initcalls priorityMichael Buesch
This changes all HWRNG driver initcalls to module_init(). We must probe the RNGs after the major kernel subsystems are already up and running (like PCI). This fixes Bug 7730. http://bugzilla.kernel.org/show_bug.cgi?id=7730 Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Jan Beulich <jbeulich@novell.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] intel-rng workaroundsJan Beulich
Add a load option to intel-rng to allow skipping the FWH detection, necessary in case the BIOS has locked read-only the firmware hub space. Also prevent any attempt to write to firmware space if it cannot be write enabled (apparently caused hangs on some systems not having an FWH and thus also not having a respective RNG). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] Revert bd_mount_mutex back to a semaphoreDavid Chinner
Revert bd_mount_mutex back to a semaphore so that xfs_freeze -f /mnt/newtest; xfs_freeze -u /mnt/newtest works safely and doesn't produce lockdep warnings. (XFS unlocks the semaphore from a different task, by design. The mutex code warns about this) Signed-off-by: Dave Chinner <dgc@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] really fix funsoft driverDavid Miller
Fix void cast and re-enable on sparc. Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] NFS: Fix race in nfs_release_page()Trond Myklebust
NFS: Fix race in nfs_release_page() invalidate_inode_pages2() may find the dirty bit has been set on a page owing to the fact that the page may still be mapped after it was locked. Only after the call to unmap_mapping_range() are we sure that the page can no longer be dirtied. In order to fix this, NFS has hooked the releasepage() method and tries to write the page out between the call to unmap_mapping_range() and the call to remove_mapping(). This, however leads to deadlocks in the page reclaim code, where the page may be locked without holding a reference to the inode or dentry. Fix is to add a new address_space_operation, launder_page(), which will attempt to write out a dirty page without releasing the page lock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Also, the bare SetPageDirty() can skew all sort of accounting leading to other nasties. [akpm@osdl.org: cleanup] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] KVM: add VM-exit profilingIngo Molnar
This adds the profile=kvm boot option, which enables KVM to profile VM exits. Use: "readprofile -m ./System.map | sort -n" to see the resulting output: [...] 18246 serial_out 148.3415 18945 native_flush_tlb 378.9000 23618 serial_in 212.7748 29279 __spin_unlock_irq 622.9574 43447 native_apic_write 2068.9048 52702 enable_8259A_irq 742.2817 54250 vgacon_scroll 89.3740 67394 ide_inb 6126.7273 79514 copy_page_range 98.1654 84868 do_wp_page 86.6000 140266 pit_read 783.6089 151436 ide_outb 25239.3333 152668 native_io_delay 21809.7143 174783 mask_and_ack_8259A 783.7803 362404 native_set_pte_at 36240.4000 1688747 total 0.5009 Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] md: pass down BIO_RW_SYNC in raid{1,10}Lars Ellenberg
md raidX make_request functions strip off the BIO_RW_SYNC flag, thus introducing additional latency. Fixing this in raid1 and raid10 seems to be straightforward enough. For our particular usage case in DRBD, passing this flag improved some initialization time from ~5 minutes to ~5 seconds. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Lars Ellenberg <lars@linbit.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] i386: sched_clock using init data tsc_disable fixVivek Goyal
o sched_clock() a non-init function is using init data tsc_disable. This is flagged by MODPOST on i386 if CONFIG_RELOCATABLE=y WARNING: vmlinux - Section mismatch: reference to .init.data:tsc_disable from .text between 'sched_clock' (at offset 0xc0109d58) and 'tsc_update_callback' Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] Kdump documentation updateVivek Goyal
o Kdump documentation update. - Update details for using relocatable kernel. - Start using kexec-tools-testing release as it is latest and old kexec-tools can't load relocatable bzImage file. - Also add kdump on ia64 specific details. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Cc: Horms <horms@verge.net.au> Cc: Mohan Kumar M <mohan@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] Change cpu_up and co from __devinit to __cpuinitGautham R Shenoy
Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n with CONFIG_RELOCATABLE = y generates the following modpost warnings WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up' This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are defined as __devinit AND __cpu_up calls some __cpuinit functions. Since __cpuinit would map to __init with this kind of a configuration, we get a .text refering .init.data warning. This patch solves the problem by converting all of __cpu_up, _cpu_up and cpu_up from __devinit to __cpuinit. The approach is justified since the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or are of __init type. Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would land up in .init section. Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1. Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] rtc-sh: correctly report rtc_wkalrm.enabledDavid Brownell
This fixes the SH rtc driver to (a) correctly report 'enabled' status with other alarm status; (b) not duplicate that status in its procfs dump Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] qconf: (re)fix SIGSEGV on empty menu itemsRoman Zippel
Back out the recent fix for this bug, fix it by correctly initialising ConfigInfoView.sym. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Cc: "Cyrill V. Gorcunov" <gorcunov@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] Fix sparsemem on CellDave Hansen
Fix an oops experienced on the Cell architecture when init-time functions, early_*(), are called at runtime. It alters the call paths to make sure that the callers explicitly say whether the call is being made on behalf of a hotplug even, or happening at boot-time. It has been compile tested on ppc64, ia64, s390, i386 and x86_64. Acked-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] increment pos before looking for the next cap in __pci_find_next_ht_capBrice Goglin
While testing 2.6.20-rc3 on a machine with some CK804 chipsets, we noticed that quirk_nvidia_ck804_msi_ht_cap() was not detecting HT MSI capabilities anymore. It is actually caused by the MSI mapping on the root chipset being the 2nd HT capability in the chain. pci_find_ht_capability() does not seem to find anything but the first HT cap correctly, because it forgets to increment the position before looking for the next cap. The following patch seems to fix it. At least, this proves that having a ttl is good idea since the machine would have been stucked in an infinite loop if we didn't have a ttl :) We have to pass pos + PCI_CAP_LIST_NEXT to __pci_find_next_cap_ttl to get the next HT cap instead of the same one again. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Andrew J. Gallatin <gallatin@myri.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11[PATCH] sched: tasks cannot run on cpus onlined after bootNathan Lynch
Commit 5c1e176781f43bc902a51e5832f789756bff911b ("sched: force /sbin/init off isolated cpus") sets init's cpus_allowed to a subset of cpu_online_map at boot time, which means that tasks won't be scheduled on cpus that are added to the system later. Make init's cpus_allowed a subset of cpu_possible_map instead. This should still preserve the behavior that Nick's change intended. Thanks to Giuliano Pochini for reporting this and testing the fix: http://ozlabs.org/pipermail/linuxppc-dev/2006-December/029397.html Signed-off-by: Nathan Lynch <ntl@pobox.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11Don't put "linux_banner" in the .init sectionLinus Torvalds
It might save a few bytes after bootup, but it causes the string to be linked in at the end of the final vmlinux image, which defeats the whole point of doing all this, namely allowing some broken user-space binaries to search for the kernel version string in the kernel binary. So just remove the __init specifier. Cc: Olaf Hering <olaf@aepfle.de> Cc: Jean Delvare <khali@linux-fr.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Andrew Morton <akpm@osdl.org> Acked-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11Revert "ACPI: ibm-acpi: make non-generic bay support optional"Henrique de Moraes Holschuh
This reverts commit 2df910b4c3edcce9a0c12394db6f5f4a6e69c712. ACPI_BAY has not been merged into mainline yet, so the changes to ibm-acpi related Kconfig entries that depend on ACPI_BAY were permanently disabling ibm-acpi bay support. This is a serious regression for ThinkPad users. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-11Pull sgi into release branchLen Brown
2007-01-11Pull trivial into release branchLen Brown
2007-01-11ACPI: update MAINTAINERSLen Brown
s/Maintained/Supported/ and document some sub-maintainers for ACPI drivers. Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-11ACPI: schedule obsolete features for deletionLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-10ACPI: delete two spurious ACPI messagesVenkatesh Pallipadi
ACPI: Getting cpuindex for acpiid 0x4 acpi_processor-0742 [00] processor_preregister_: Error while parsing _PSD domain information. Assuming no coordination http://bugzilla.kernel.org/show_bug.cgi?id=7286 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-10ACPI: rename cstate_entry_s to cstate_entryVenkatesh Pallipadi
style change only. Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-10Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: [PATCH] x86-64: Fix warnings in ia32_aout.c [PATCH] i386: Convert some functions to __init to avoid MODPOST warnings [PATCH] i386: Fix memory hotplug related MODPOST generated warning [PATCH] x86-64: tighten up printks [PATCH] x86-64: - Ignore long SMI interrupts in clock calibration [PATCH] x86-64: pci quirks MODPOST warning fix [PATCH] x86-64: Modpost whitelist reference to more symbols (pattern 3) [PATCH] x86-64: modpost add more symbols to whitelist pattern2 [PATCH] i386: make apic probe function non-init [PATCH] i386: cpu hotplug/smpboot misc MODPOST warning fixes [PATCH] x86-64: Use different constraint for gcc < 4.1 in bitops.h [PATCH] x86-64: Make noirqdebug_setup function non init to fix modpost warning [PATCH] i386: Update defconfig [PATCH] x86-64: Update defconfig
2007-01-11[PATCH] x86-64: Fix warnings in ia32_aout.cAndi Kleen
Fix linux/arch/x86_64/ia32/ia32_aout.c: In function ‘create_aout_tables’: linux/arch/x86_64/ia32/ia32_aout.c:244: warning: cast from pointer to integer of different size linux/arch/x86_64/ia32/ia32_aout.c:253: warning: cast from pointer to integer of different size with gcc 4.3 Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] i386: Convert some functions to __init to avoid MODPOST warningsVivek Goyal
o Some functions which should have been in init sections as they are called only once. Put them in init sections. Otherwise MODPOST generates warning as these functions are placed in .text and they end up accessing something in init sections. WARNING: vmlinux - Section mismatch: reference to .init.text:migration_init from .text between 'do_pre_smp_initcalls' (at offset 0xc01000d1) and 'run_init_process' Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] i386: Fix memory hotplug related MODPOST generated warningVivek Goyal
o Fix modpost generated warning. WARNING: vmlinux - Section mismatch: reference to .init.text: from .text between 'add_one_highpage_hotplug' (at offset 0xc0113d3f) and 'online_page' Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] x86-64: tighten up printksMuli Ben-Yehuda
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11[PATCH] x86-64: - Ignore long SMI interrupts in clock calibrationJack Steiner
Ensure that no SMI interrupts occur between the read of the HPET & TSC in the clock calibration loop. I noticed that a 2.66GHz system incorrectly detected the processor clock speed about 1/7 of the time: time.c: Detected 2660.005 MHz processor. (most of the time) time.c: Detected 2988.203 MHz processor. (sometime) The problem is caused by an SMI interrupt occuring in hpet_calibrate_tsc() between the read of the HPET & TSC. Prior to switching the BIOS into ACPI mode, it appears that every 27msec an SMI interrupt occurs. The SMI interrupt takes 4.8 msec to process. Note: On my test system, TICK_MIN had to be >380. I picked 5000 to minimize risk of having a value that is too small for other platforms. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Andi Kleen <ak@suse.de> arch/x86_64/kernel/time.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-)
2007-01-11[PATCH] x86-64: pci quirks MODPOST warning fixVivek Goyal
o MODPOST generates warnings for i386 if kernel is compiled with CONFIG_RELOCATABLE=y WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'asus_hides_smbus_lpc_ich6' (at offset 0xc0217d58) and 'quirk_cardbus_legacy' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'asus_hides_smbus_lpc' (at offset 0xc0217fd9) and 'pci_match_id' o Two quirk functions which are non __init, are accessing data which is of type __init. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] x86-64: Modpost whitelist reference to more symbols (pattern 3)Vivek Goyal
o MODPOST generates warning on i386 if kernel is compiled with CONFIG_RELOCATABLE=y. WARNING: vmlinux - Section mismatch: reference to .init.text:__init_begin from .text between 'free_initmem' (at offset 0xc0114fd3) and 'do_test_wp_bit' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'core_kernel_text' (at offset 0xc012aeae) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'core_kernel_text' (at offset 0xc012aeb7) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'get_symbol_pos' (at offset 0xc0135776) and 'reset_iter' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'get_symbol_pos' (at offset 0xc013577d) and 'reset_iter' o These symbols (__init_begin, _sinittext, _einittext) belong to init section and generally represent a section boundary. These are special symbols in the sense that their size is zero and no memory is allocated for them in init section. Their addr and value are same. So even if we free the init section, it is ok to reference them. o Whitelist access to such select symbols in MODPOST. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11[PATCH] x86-64: modpost add more symbols to whitelist pattern2Vivek Goyal
o MODPOST generates warning for i386 if compiled with CONFIG_RELOCATABLE=y and serial console support is enabled. o Serial console setup function, serial8250_console_setup(), is a non __init function and it calls functions which are of type __init(). (uart_parse_options() and uart_set_options()). Assuming, setup will be called during init time, changing serial8250_console_setup() to __init. o Adding one more pattern to modpost whitelist. Console drivers might have *_console structures containing references to setup functions which can be of __init type. Don't generate warnings for those. WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'serial8250_console' (at offset 0xc05a33d8) and 'serial8250_reg' Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11[PATCH] i386: make apic probe function non-initVivek Goyal
o struct genapic contains pointer to probe() function which is of type __init. Hence MODPOST generates warning if kernel is compiled with CONFIG_RELOCATABLE=y for i386. WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_summit' (at offset 0xc058b504) and 'apic_bigsmp' WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_bigsmp' (at offset 0xc058b5a4) and 'cpu.4471' WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_es7000' (at offset 0xc058b644) and 'apic_default' WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_default' (at offset 0xc058b6e4) and 'interrupt' o One of the possible options is to put special case check in MODPOST to not emit warnings for this case but I think it is not a very good option in terms of maintenance. o Another option is to make probe() function non __init. Anyway this function is really small so not freeing this memory after init is not a big deal. Secondly, from a programming perspective, probably genapic should not provide pointers to functions which have been freed as genapic is non __init and is used even after initialization is complete. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11[PATCH] i386: cpu hotplug/smpboot misc MODPOST warning fixesVivek Goyal
o Misc smpboot/cpu hotplug path cleanups. I did those to supress the warnings generated by MODPOST. These warnings are visible only if CONFIG_RELOCATABLE=y. o CONFIG_RELOCATABLE compiles the kernel with --emit-relocs option. This option retains relocation information in vmlinux file and MODPOST is quick to spit out "Section mismatch" warnings. o This patch fixes some of those warnings. Many of the functions in smpboot case are __devinit type and they in turn accesses text/data which if of type __cpuinit. Now if CONFIG_HOTPLUG=y and CONFIG_HOTPLUG_CPU=n then we end up in cases where a function in .text segment is calling another function in .init.text segment and MODPOST emits warning. WARNING: vmlinux - Section mismatch: reference to .init.text:identify_cpu from .text between 'smp_store_cpu_info' (at offset 0xc011020d) and 'do_boot_cpu' WARNING: vmlinux - Section mismatch: reference to .init.text:init_gdt from .text between 'do_boot_cpu' (at offset 0xc01102ca) and '__cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.text:print_cpu_info from .text between 'do_boot_cpu' (at offset 0xc01105d0) and '__cpu_up' o It also fixes the issues where CONFIG_HOTPLUG_CPU=y and start_secondary() is calling smp_callin() which in-turn calls synchronize_tsc_ap() which is of type __init. This should have meant broken CPU hotplug. WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'start_secondary' (at offset 0xc011603f) and 'initialize_secondary' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'MP_processor_info' (at offset 0xc0116a4f) and 'mp_register_lapic' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'MP_processor_info' (at offset 0xc0116a4f) and 'mp_register_lapic' Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] x86-64: Use different constraint for gcc < 4.1 in bitops.hAndi Kleen
+m is really correct for a RMW instruction, but some older gccs error out. I finally gave in and ifdefed it. This fixes compilation errors with some compiler version. Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] x86-64: Make noirqdebug_setup function non init to fix modpost warningVivek Goyal
o noirqdebug_setup() is __init but it is being called by quirk_intel_irqbalance() which if of type __devinit. If CONFIG_HOTPLUG=y, quirk_intel_irqbalance() is put into text section and it is wrong to call a function in __init section. o MODPOST flags this on i386 if CONFIG_RELOCATABLE=y WARNING: vmlinux - Section mismatch: reference to .init.text:noirqdebug_setup from .text between 'quirk_intel_irqbalance' (at offset 0xc010969e) and 'i8237A_suspend' o Make noirqdebug_setup() non-init. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] i386: Update defconfigAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11[PATCH] x86-64: Update defconfigAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>