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* [PATCH] x86-64: Relocatable Kernel SupportVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | | | This patch modifies the x86_64 kernel so that it can be loaded and run at any 2M aligned address, below 512G. The technique used is to compile the decompressor with -fPIC and modify it so the decompressor is fully relocatable. For the main kernel the page tables are modified so the kernel remains at the same virtual address. In addition a variable phys_base is kept that holds the physical address the kernel is loaded at. __pa_symbol is modified to add that when we take the address of a kernel symbol. When loaded with a normal bootloader the decompressor will decompress the kernel to 2M and it will run there. This both ensures the relocation code is always working, and makes it easier to use 2M pages for the kernel and the cpu. AK: changed to not make RELOCATABLE default in Kconfig Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: __pa and __pa_symbol address space separationVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently __pa_symbol is for use with symbols in the kernel address map and __pa is for use with pointers into the physical memory map. But the code is implemented so you can usually interchange the two. __pa which is much more common can be implemented much more cheaply if it is it doesn't have to worry about any other kernel address spaces. This is especially true with a relocatable kernel as __pa_symbol needs to peform an extra variable read to resolve the address. There is a third macro that is added for the vsyscall data __pa_vsymbol for finding the physical addesses of vsyscall pages. Most of this patch is simply sorting through the references to __pa or __pa_symbol and using the proper one. A little of it is continuing to use a physical address when we have it instead of recalculating it several times. swapper_pgd is now NULL. leave_mm now uses init_mm.pgd and init_mm.pgd is initialized at boot (instead of compile time) to the physmem virtual mapping of init_level4_pgd. The physical address changed. Except for the for EMPTY_ZERO page all of the remaining references to __pa_symbol appear to be during kernel initialization. So this should reduce the cost of __pa in the common case, even on a relocated kernel. As this is technically a semantic change we need to be on the lookout for anything I missed. But it works for me (tm). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Remove the identity mapping as early as possibleVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | With the rewrite of the SMP trampoline and the early page allocator there is nothing that needs identity mapped pages, once we start executing C code. So add zap_identity_mappings into head64.c and remove zap_low_mappings() from much later in the code. The functions are subtly different thus the name change. This also kills boot_level4_pgt which was from an earlier attempt to move the identity mappings as early as possible, and is now no longer needed. Essentially I have replaced boot_level4_pgt with trampoline_level4_pgt in trampoline.S Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: wakeup.S rename registers to reflect right namesVivek Goyal2007-05-02
| | | | | | | | o Use appropriate names for 64bit regsiters. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Add EFER to the register set saved by save_processor_stateVivek Goyal2007-05-02
| | | | | | | | | | EFER varies like %cr4 depending on the cpu capabilities, and which cpu capabilities we want to make use of. So save/restore it make certain we have the same EFER value when we are done. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: cleanup segmentsVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | Move __KERNEL32_CS up into the unused gdt entry. __KERNEL32_CS is used when entering the kernel so putting it first is useful when trying to keep boot gdt sizes to a minimum. Set the accessed bit on all gdt entries. We don't care so there is no need for the cpu to burn the extra cycles, and it potentially allows the pages to be immutable. Plus it is confusing when debugging and your gdt entries mysteriously change. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Clean up the early boot page tableVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | - Merge physmem_pgt and ident_pgt, removing physmem_pgt. The merge is broken as soon as mm/init.c:init_memory_mapping is run. - As physmem_pgt is gone don't export it in pgtable.h. - Use defines from pgtable.h for page permissions. - Fix the physical memory identity mapping so it is at the correct address. - Remove the physical memory mapping from wakeup_level4_pgt it is at the wrong address so we can't possibly be usinging it. - Simply NEXT_PAGE the work to calculate the phys_ alias of the labels was very cool. Unfortuantely it was a brittle special purpose hack that makes maitenance more difficult. Instead just use label - __START_KERNEL_map like we do everywhere else in assembly. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Assembly safe page.h and pgtable.hVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes pgtable.h and page.h safe to include in assembly files like head.S. Allowing us to use symbolic constants instead of hard coded numbers when refering to the page tables. This patch copies asm-sparc64/const.h to asm-x86_64 to get a definition of _AC() a very convinient macro that allows us to force the type when we are compiling the code in C and to drop all of the type information when we are using the constant in assembly. Previously this was done with multiple definition of the same constant. const.h was modified slightly so that it works when given CONFIG options as arguments. This patch adds #ifndef __ASSEMBLY__ ... #endif and _AC(1,UL) where appropriate so the assembler won't choke on the header files. Otherwise nothing should have changed. AK: added const.h to exported headers to fix headers_check Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: dma_ops as constStephen Hemminger2007-05-02
| | | | | | | | The dma_ops structure can be const since it never changes after boot. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpusJoerg Roedel2007-05-02
| | | | | | | | | | | | | | | | This patch fixes the reporting of cpu_mhz in /proc/cpuinfo on CPUs with a constant TSC rate and a kernel with disabled cpufreq. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> arch/x86_64/kernel/apic.c | 2 - arch/x86_64/kernel/time.c | 58 +++++++++++++++++++++++++++++++++++++++--- arch/x86_64/kernel/tsc.c | 12 +++++--- arch/x86_64/kernel/tsc_sync.c | 2 - include/asm-x86_64/proto.h | 1 5 files changed, 65 insertions(+), 10 deletions(-)
* [PATCH] x86-64: Remove duplicated code for reading control registersGlauber de Oliveira Costa2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | On Tue, Mar 13, 2007 at 05:33:09AM -0700, Randy.Dunlap wrote: > On Tue, 13 Mar 2007, Glauber de Oliveira Costa wrote: > > > Tiny cleanup: > > > > In x86_64, the same functions for reading cr3 and writing cr{3,4} are > > defined in tlbflush.h and system.h, whith just a name change. > > The only difference is the clobbering of memory, which seems a safe, and > > even needed change for the write_cr4. This patch removes the duplicate. > > write_cr3() is moved to system.h for consistency. > > missing patch..... > thanks. Attached now -- Glauber de Oliveira Costa Red Hat Inc. "Free as in Freedom" Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Remove unused set_seg_baseRusty Russell2007-05-02
| | | | | | | The set_seg_base function isn't used anywhere (2.6.21-rc3-git1) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: clean up mach_reboot_fixupsJeremy Fitzhardinge2007-05-02
| | | | | | | | | | | The reboot_fixups stuff seems to be a bit of a mess, specifically the header is in linux/ when its a purely i386-specific piece of code. I'm not sure why it has its config option; its only currently needed for "geode-gx1/cs5530a", so perhaps whatever config option controls that hardware should enable this? Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Update __copy_to_user_inatomic linuxdoc descriptionAneesh Kumar K.V2007-05-02
| | | | | | | | Explicity specify that the caller should pin the user memory otherwise the function will sleep Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Change sysenter_setup to __cpuinit & improve __INIT, __INITDATAPrarit Bhargava2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change sysenter_setup to __cpuinit. Change __INIT & __INITDATA to be cpu hotplug aware. Resolve MODPOST warnings similar to: WARNING: vmlinux - Section mismatch: reference to .init.text:sysenter_setup from .text between 'identify_cpu' (at offset 0xc040a380) and 'detect_ht' and WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_int80_end from .text between 'sysenter_setup' (at offset 0xc041a269) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_int80_start from .text between 'sysenter_setup' (at offset 0xc041a26e) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_sysenter_end from .text between 'sysenter_setup' (at offset 0xc041a275) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_sysenter_start from .text between 'sysenter_setup' (at offset 0xc041a27a) and 'enable_sep_cpu' Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: Some cleanup in time.cAndi Kleen2007-05-02
| | | | | | | Move prototypes into header files Remove unneeded includes. Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Add an option for the VIA C7 which sets appropriate L1 cacheSimon Arlott2007-05-02
| | | | | | | | | | | | | | The VIA C7 is a 686 (with TSC) that supports MMX, SSE and SSE2, it also has a cache line length of 64 according to http://www.digit-life.com/articles2/cpu/rmma-via-c7.html. This patch sets gcc to -march=686 and select s the correct cache shift. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: pit_latch_buggy has no effecttakada2007-05-02
| | | | | | | | | | | | | | Eliminated the arch/i386/kernel/timers in 2.6.18, use clocksoures instead. pit_latch_buggy was referred in timers/timer_tsc.c, and currently removed. Therefore nobody refer it. Until 2.6.17, MediaGX's TSC works correctly. after 2.6.18, warned "TSC appears to be running slowly. Marking it as unstable". So marked unstable TSC when CS55x0. Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: No need to use -traditional for processing asm in i386/kernel/Jeremy Fitzhardinge2007-05-02
| | | | | | | No need to use -traditional for processing asm in i386/kernel/ Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: consolidate smp_send_stop()Jan Beulich2007-05-02
| | | | | | | | | | | | | | | Synchronize i386's smp_send_stop() with x86-64's in only try-locking the call lock to prevent deadlocks when called from panic(). In both version, disable interrupts before clearing the CPU off the online map to eliminate races with IRQ handlers inspecting this map. Also in both versions, save/restore interrupts rather than disabling/ enabling them. On x86-64, eliminate one function used here by folding it into its single caller, convert to static, and rename for consistency with i386 (lkcd may like this). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: adjust inclusion of asm/vsyscall32.hJan Beulich2007-05-02
| | | | | | | Avoid including asm/vsyscall32.h in virtually every source file. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: adjust inclusion of asm/fixmap.hJan Beulich2007-05-02
| | | | | | | | | Move inclusion of asm/fixmap.h to where it is really used rather than where it may have been used long ago (requires a few other adjustments to includes due to previous implicit dependencies). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: default to physical mode on hotplug CPU kernelsIngo Molnar2007-05-02
| | | | | | | | | | | | | Default to physical mode on hotplug CPU kernels. Furher simplify and clean up the APIC initialization code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
* [PATCH] x86-64: always use physical delivery mode on > 8 CPUsIngo Molnar2007-05-02
| | | | | | | | | | | | | | | | | | | | Remove clustered APIC mode. There's little point in the use of clustered APIC mode, broadcasting is limited to within the cluster only, and chipsets have bugs in this area as well. So default to physical APIC mode when the CPU count is large, and default to logical APIC mode when the CPU count is 8 or smaller. (this patch only removes the use of genapic_cluster and cleans up the resulting genapic.c file - removal of all remaining traces of clustered mode will be done by another patch.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
* [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525Andrew Morton2007-05-02
| | | | | | | | | | | Obsoleted by Ingo's genapic stuff. Cc: Ingo Molnar <mingo@elte.hu> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86-64: revert x86_64-mm-add-genapic_forceAndrew Morton2007-05-02
| | | | | | | | | | | This is obsoleted by new Ingo genapic patches. Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
* pm: include EIO from errno-base.hDavid Rientjes2007-04-30
| | | | | | | | | | | For backwards compatibility, call_platform_enable_wakeup() can return 0 instead of -EIO since we aren't guaranteed to have errno defined. Cc: David Brownell <david-b@pacbell.net> Signed-off-by: David Rientjes <rientjes@google.com> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add kvasprintf()Jeremy Fitzhardinge2007-04-30
| | | | | | | | | | | | | Add a kvasprintf() function to complement kasprintf(). No in-tree users yet, but I have some coming up. [akpm@linux-foundation.org: EXPORT it] Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Keir Fraser <keir@xensource.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* power management: force pm_ops.valid callback to be assignedJohannes Berg2007-04-30
| | | | | | | | | | | | | | | | | | This patch changes the docs and behaviour from "all states valid" to "no states valid" if no .valid callback is assigned. Users of pm_ops that only need mem sleep can assign pm_valid_only_mem without any overhead, others will require more elaborate callbacks. Now that all users of pm_ops have a .valid callback this is a safe thing to do and prevents things from getting messy again as they were before. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Pavel Machek <pavel@ucw.cz> Looks-okay-to: Rafael J. Wysocki <rjw@sisk.pl> Cc: <linux-pm@lists.linux-foundation.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* power management: implement pm_ops.valid for everybodyJohannes Berg2007-04-30
| | | | | | | | | | | | | | | | | | | | | | Almost all users of pm_ops only support mem sleep, don't check in .valid and don't reject any others in .prepare so users can be confused if they check /sys/power/state, especially when new states are added (these would then result in s-t-r although they're supposed to be something different). This patch implements a generic pm_valid_only_mem function that is then exported for users and puts it to use in almost all existing pm_ops. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: David Brownell <david-b@pacbell.net> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: linux-pm@lists.linux-foundation.org Cc: Len Brown <lenb@kernel.org> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Greg KH <greg@kroah.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* power management: remove firmware disk modeJohannes Berg2007-04-30
| | | | | | | | | | | | | | | | | | This patch removes the firmware disk suspend mode which is the wrong approach, it is supposed to be used for implementing firmware-based disk suspend but cannot actually be used for that. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: <linux-pm@lists.linux-foundation.org> Cc: David Brownell <david-b@pacbell.net> Cc: Len Brown <lenb@kernel.org> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Greg KH <greg@kroah.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rework pm_ops pm_disk_mode, kill misuseJohannes Berg2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch series cleans up some misconceptions about pm_ops. Some users of the pm_ops structure attempt to use it to stop the user from entering suspend to disk, this, however, is not possible since the user can always use "shutdown" in /sys/power/disk and then the pm_ops are never invoked. Also, platforms that don't support suspend to disk simply should not allow configuring SOFTWARE_SUSPEND (read the help text on it, it only selects suspend to disk and nothing else, all the other stuff depends on PM). The pm_ops structure is actually intended to provide a way to enter platform-defined sleep states (currently supported states are "standby" and "mem" (suspend to ram)) and additionally (if SOFTWARE_SUSPEND is configured) allows a platform to support a platform specific way to enter low-power mode once everything has been saved to disk. This is currently only used by ACPI (S4). This patch: The pm_ops.pm_disk_mode is used in totally bogus ways since nobody really seems to understand what it actually does. This patch clarifies the pm_disk_mode description. It also removes all the arm and sh users that think they can veto suspend to disk via pm_ops; not so since the user can always do echo shutdown > /sys/power/disk, they need to find a better way involving Kconfig or such. ACPI is the only user left with a non-zero pm_disk_mode. The patch also sets the default mode to shutdown again, but when a new pm_ops is registered its pm_disk_mode is selected as default, that way the default stays for ACPI where it is apparently required. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: David Brownell <david-b@pacbell.net> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: <linux-pm@lists.linux-foundation.org> Cc: Len Brown <lenb@kernel.org> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Greg KH <greg@kroah.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Extend print_symbol capabilityRobert Peterson2007-04-30
| | | | | | | | | | | | | | | | | | | | | Today's print_symbol function dumps a kernel symbol with printk. This patch extends the functionality of kallsyms.c so that the symbol lookup function may be used without the printk. This is useful for modules that want to dump symbols elsewhere, for example, to debugfs. I intend to use the new function call in the GFS2 file system (which will be a separate patch). [akpm@linux-foundation.org: build fix] [clameter@sgi.com: sprint_symbol should return length of string like sprintf] Signed-off-by: Robert Peterson <rpeterso@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-04-30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid: (21 commits) USB HID: don't warn on idVendor == 0 USB HID: add 'quirks' module parameter USB HID: add support for dynamically-created quirks USB HID: clarify static quirk handling as squirks USB HID: encapsulate quirk handling into hid-quirks.c USB HID: EMS USBII device needs HID_QUIRK_MULTI_INPUT HID: update copyright and authorship macro HID: introduce proper zeroing of unused bits in output reports USB HID: add support for WiseGroup MP-8800 Quad Joypad USB HID: add FF support for Logitech Force 3D Pro Joystick USB HID: numlock quirk for dell W7658 keyboard USB HID: Logitech MX3000 keyboard needs report descriptor quirk USB HID: extend quirk for Logitech S510 keyboard USB HID: usbkbd/usbmouse - handle errors when registering devices USB HID: add QUIRK_HIDDEV for Belkin Flip KVM HID: enable dead keys on a belkin wireless keyboard USB HID: Thustmaster firestorm dual power v1 support USB HID: specify explicit size for hid_blacklist.quirks USB HID: fix retry & reset logic USB HID: consolidate vendor/product ids ...
| * USB HID: add 'quirks' module parameterPaul Walmsley2007-04-19
| | | | | | | | | | | | | | | | Add a 'quirks' module parameter for the usbhid module, so users can add or modify quirks at module load time. Signed-off-by: Paul Walmsley <paul@booyaka.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * USB HID: add support for dynamically-created quirksPaul Walmsley2007-04-19
| | | | | | | | | | | | | | | | | | | | Add internal support for dynamically-allocated HID quirks, "dquirks" (for "dynamic quirks"). Includes several functions to add/modify quirks from the list. This code is used by the next patch to implement quirk modification upon module load. Signed-off-by: Paul Walmsley <paul@booyaka.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * USB HID: encapsulate quirk handling into hid-quirks.cPaul Walmsley2007-04-19
| | | | | | | | | | | | | | | | | | | | Move the USB_VENDOR* and USB_DEVICE* defines and the hid_blacklist[] array there from hid-core.c. Add hid-quirks.c:usbhid_lookup_any_quirks() to return quirk information to hid-core.c. Convert __u32, __u16 types to u32, u16. Signed-off-by: Paul Walmsley <paul@booyaka.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * USB HID: numlock quirk for dell W7658 keyboardPete Zaitcev2007-04-11
| | | | | | | | | | | | | | | | | | | | | | | | On Dell W7658 keyboard, when BIOS sets NumLock LED on, it survives the takeover by kernel and thus confuses users. Eating of an increasibly scarce quirk bit is unfortunate. We do it for safety, given the history of nervous input devices which crash if anything unusual happens. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * USB HID: Logitech MX3000 keyboard needs report descriptor quirkJiri Kosina2007-04-11
| | | | | | | | | | | | | | | | | | | | | | Logitech MX3000 contains report descriptor which doesn't cover usages above 0x28c, but emits such usages. Report descriptor needs fixing in the very same way as with receivers shipped with S510 keyboards. This patch also adds a few mappings for multimedia keys that S510 didn't emit. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2007-04-30
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) [IPV4] SNMP: Support OutMcastPkts and OutBcastPkts [IPV4] SNMP: Support InMcastPkts and InBcastPkts [IPV4] SNMP: Support InTruncatedPkts [IPV4] SNMP: Support InNoRoutes [SNMP]: Add definitions for {In,Out}BcastPkts [TCP] FRTO: RFC4138 allows Nagle override when new data must be sent [TCP] FRTO: Delay skb available check until it's mandatory [XFRM]: Restrict upper layer information by bundle. [TCP]: Catch skb with S+L bugs earlier [PATCH] INET : IPV4 UDP lookups converted to a 2 pass algo [L2TP]: Add the ability to autoload a pppox protocol module. [SKB]: Introduce skb_queue_walk_safe() [AF_IUCV/IUCV]: smp_call_function deadlock [IPV6]: Fix slab corruption running ip6sic [TCP]: Update references in two old comments [XFRM]: Export SPD info [IPV6]: Track device renames in snmp6. [SCTP]: Fix sctp_getsockopt_local_addrs_old() to use local storage. [NET]: Remove NETIF_F_INTERNAL_STATS, default to internal stats. [NETPOLL]: Remove CONFIG_NETPOLL_RX ...
| * | [SNMP]: Add definitions for {In,Out}BcastPktsMitsuru Chinen2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | The updated IP-MIB RFC (RFC4293) specifys new objects, InBcastPkts and OutBcastPkts. This adds definitions for them. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP] FRTO: RFC4138 allows Nagle override when new data must be sentIlpo Järvinen2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a corner case where less than MSS sized new data thingie is awaiting in the send queue. For F-RTO to work correctly, a new data segment must be sent at certain point or F-RTO cannot be used at all. RFC4138 allows overriding of Nagle at that point. Implementation uses frto_counter states 2 and 3 to distinguish when Nagle override is needed. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [XFRM]: Restrict upper layer information by bundle.Masahide NAKAMURA2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On MIPv6 usage, XFRM sub policy is enabled. When main (IPsec) and sub (MIPv6) policy selectors have the same address set but different upper layer information (i.e. protocol number and its ports or type/code), multiple bundle should be created. However, currently we have issue to use the same bundle created for the first time with all flows covered by the case. It is useful for the bundle to have the upper layer information to be restructured correctly if it does not match with the flow. 1. Bundle was created by two policies Selector from another policy is added to xfrm_dst. If the flow does not match the selector, it goes to slow path to restructure new bundle by single policy. 2. Bundle was created by one policy Flow cache is added to xfrm_dst as originated one. If the flow does not match the cache, it goes to slow path to try searching another policy. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Catch skb with S+L bugs earlierIlpo Järvinen2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SACKED_ACKED and LOST are mutually exclusive with SACK, thus having their sum larger than packets_out is bug with SACK. Eventually these bugs trigger traps in the tcp_clean_rtx_queue with SACK but it's much more informative to do this here. Non-SACK TCP, however, could get more than packets_out duplicate ACKs which each increment sacked_out, so it makes sense to do this kind of limitting for non-SACK TCP but not for SACK enabled one. Perhaps the author had the opposite in mind but did the logic accidently wrong way around? Anyway, the sacked_out incrementer code for non-SACK already deals this issue before calling sync_left_out so this trapping can be done unconditionally. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [SKB]: Introduce skb_queue_walk_safe()James Chapman2007-04-30
| | | | | | | | | | | | | | | | | | | | | | | | This patch provides a method for walking skb lists while inserting or removing skbs from the list. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [AF_IUCV/IUCV]: smp_call_function deadlockMartin Schwidefsky2007-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calling smp_call_function can lead to a deadlock if it is called from tasklet context. Fixing this deadlock requires to move the smp_call_function from the tasklet context to a work queue. To do that queue the path pending interrupts to a separate list and move the path cleanup out of iucv_path_sever to iucv_path_connect and iucv_path_pending. This creates a new requirement for iucv_path_connect: it may not be called from tasklet context anymore. Also fixed compile problem for CONFIG_HOTPLUG_CPU=n and another one when walking the cpu_online mask. When doing this, we must disable cpu hotplug. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [XFRM]: Export SPD infoJamal Hadi Salim2007-04-29
| | | | | | | | | | | | | | | | | | | | | | | | With this patch you can use iproute2 in user space to efficiently see how many policies exist in different directions. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NET]: Remove NETIF_F_INTERNAL_STATS, default to internal stats.Rusty Russell2007-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Herbert Xu conviced me that a new flag was overkill; every driver currently overrides get_stats, so we might as well make the internal one the default. If someone did fail to set get_stats, they would now get all 0 stats instead of "No statistics available". Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETPOLL]: Fix TX queue overflow in trapped mode.Sergei Shtylyov2007-04-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_NETPOLL_TRAP causes the TX queue controls to be completely bypassed in the netpoll's "trapped" mode which easily causes overflows in the drivers with short TX queues (most notably, in 8139too with its 4-deep queue). So, make this option more sensible by making it only bypass the TX softirq wakeup. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Acked-by: Tom Rini <trini@kernel.crashing.org> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2007-04-30
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: [PATCH] elevator: elv_list_lock does not need irq disabling [BLOCK] Don't pin lots of memory in mempools cfq-iosched: speedup cic rb lookup ll_rw_blk: add io_context private pointer cfq-iosched: get rid of cfqq hash cfq-iosched: tighten queue request overlap condition cfq-iosched: improve sync vs async workloads cfq-iosched: never allow an async queue idling cfq-iosched: get rid of ->dispatch_slice cfq-iosched: don't pass unused preemption variable around cfq-iosched: get rid of ->cur_rr and ->cfq_list cfq-iosched: slice offset should take ioprio into account [PATCH] cfq-iosched: style cleanups and comments cfq-iosched: sort IDLE queues into the rbtree cfq-iosched: sort RT queues into the rbtree [PATCH] cfq-iosched: speed up rbtree handling cfq-iosched: rework the whole round-robin list concept cfq-iosched: minor updates cfq-iosched: development update cfq-iosched: improve preemption for cooperating tasks
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