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2008-06-26parisc: convert to generic helpers for IPI function callsJens Axboe
This converts parisc to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Tested by Kyle, seems to work. Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-02-09ide: introduce HAVE_IDESam Ravnborg
To allow flexible configuration of IDE introduce HAVE_IDE. All archs except arm, um and s390 unconditionally select it. For arm the actual configuration determine if IDE is supported. This is a step towards introducing drivers/Kconfig for arm. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-08aout: mark arches that support A.OUT formatDavid Howells
Mark arches that support A.OUT format by including the following in their master Kconfig files: config ARCH_SUPPORTS_AOUT def_bool y This should also be set if the arch provides compatibility A.OUT support for an older arch, for instance x86_64 for i386 or sparc64 for sparc. I've guessed at which arches don't, based on comments in the code, however I'm sure that some of the ones I've marked as 'yes' actually should be 'no'. Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits) Jesper Juhl is the new trivial patches maintainer Documentation: mention email-clients.txt in SubmittingPatches fs/binfmt_elf.c: spello fix do_invalidatepage() comment typo fix Documentation/filesystems/porting fixes typo fixes in net/core/net_namespace.c typo fix in net/rfkill/rfkill.c typo fixes in net/sctp/sm_statefuns.c lib/: Spelling fixes kernel/: Spelling fixes include/scsi/: Spelling fixes include/linux/: Spelling fixes include/asm-m68knommu/: Spelling fixes include/asm-frv/: Spelling fixes fs/: Spelling fixes drivers/watchdog/: Spelling fixes drivers/video/: Spelling fixes drivers/ssb/: Spelling fixes drivers/serial/: Spelling fixes drivers/scsi/: Spelling fixes ...
2008-02-03remove Documentation/smp.txtAdrian Bunk
After seeing the filename I'd have expected something about the implementation of SMP in the Linux kernel - not some notes on kernel configuration and building trivialities noone would search at this place. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com>
2008-02-03Move Kconfig.instrumentation to arch/Kconfig and init/KconfigMathieu Desnoyers
Move the instrumentation Kconfig to arch/Kconfig for architecture dependent options - oprofile - kprobes and init/Kconfig for architecture independent options - profiling - markers Remove the "Instrumentation Support" menu. Everything moves to "General setup". Delete the kernel/Kconfig.instrumentation file. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-03Add HAVE_OPROFILEMathieu Desnoyers
Linus: On the per-architecture side, I do think it would be better to *not* have internal architecture knowledge in a generic file, and as such a line like depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32 really shouldn't exist in a file like kernel/Kconfig.instrumentation. It would be much better to do depends on ARCH_SUPPORTS_KPROBES in that generic file, and then architectures that do support it would just have a bool ARCH_SUPPORTS_KPROBES default y in *their* architecture files. That would seem to be much more logical, and is readable both for arch maintainers *and* for people who have no clue - and don't care - about which architecture is supposed to support which interface... Changelog: Actually, I know I gave this as the magic incantation, but now that I see it, I realize that I should have told you to just use config ARCH_SUPPORTS_KPROBES def_bool y instead, which is a bit denser. We seem to use both kinds of syntax for these things, but this is really what "def_bool" is there for... Changelog : - Moving to HAVE_*. - Add AVR32 oprofile. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Howells <dhowells@redhat.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-30spinlock: lockbreak cleanupNick Piggin
The break_lock data structure and code for spinlocks is quite nasty. Not only does it double the size of a spinlock but it changes locking to a potentially less optimal trylock. Put all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a __raw_spin_is_contended that uses the lock data itself to determine whether there are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is not set. Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to decouple it from the spinlock implementation, and make it typesafe (rwlocks do not have any need_lockbreak sites -- why do they even get bloated up with that break_lock then?). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-19Combine instrumentation menus in kernel/Kconfig.instrumentationMathieu Desnoyers
Quoting Randy: "It seems sad that this patch sources Kconfig.marker, a 7-line file, 20-something times. Yes, you (we) don't want to put those 7 lines into 20-something different files, so sourcing is the right thing. However, what you did for avr32 seems more on the right track to me: make _one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES, and MARKERS and then use (source) that in all of the arches." Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits) [PARISC] Use symbolic last syscall in __NR_Linux_syscalls [PARISC] Add missing statfs64 and fstatfs64 syscalls Revert "[PARISC] Optimize TLB flush on SMP systems" [PARISC] Compat signal fixes for 64-bit parisc [PARISC] Reorder syscalls to match unistd.h Revert "[PATCH] make kernel/signal.c:kill_proc_info() static" [PARISC] fix sys_rt_sigqueueinfo [PARISC] fix section mismatch warnings in harmony sound driver [PARISC] do not export get_register/set_register [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code [PARISC] convert to use CONFIG_64BIT instead of __LP64__ [PARISC] use CONFIG_64BIT instead of __LP64__ [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro [PARISC] more ENTRY(), ENDPROC(), END() conversions [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc [PARISC] Fixes /proc/cpuinfo cache output on B160L [PARISC] implement standard ENTRY(), END() and ENDPROC() [PARISC] kill ENTRY_SYS_CPUS [PARISC] clean up debugging printks in smp.c [PARISC] factor syscall_restart code out of do_signal ... Fix conflict in include/linux/sched.h due to kill_proc_info() being made publicly available to PARISC again.
2007-02-17[PARISC] GENERIC_TIME patchset for pariscHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Generic BUGHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-11[PATCH] optional ZONE_DMA: remove ZONE_DMA remains from pariscChristoph Lameter
Remove ZONE_DMA remains from parisc so that kernels are build without ZONE_DMA. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-12-08[PATCH] LOG2: Implement a general integer log2 facility in the kernelDavid Howells
This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PARISC] PA7200 also supports prefetch for readKyle McMartin
It seems PA7200 processors also suppress traps on loads to %r0. This means we can prefetch for read on these cpus. Of course, we can't support prefetch for write, since that requires LOAD DOUBLEWORD which was added with PA2.0 Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-06-29[PATCH] genirq: cleanup: turn ARCH_HAS_IRQ_PER_CPU into CONFIG_IRQ_PER_CPUIngo Molnar
Cleanup: change ARCH_HAS_IRQ_PER_CPU into a Kconfig method. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-21[PARISC] Further work for multiple page sizesHelge Deller
More work towards supporing multiple page sizes on 64-bit. Convert some assumptions that 64bit uses 3 level page tables into testing PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups to assembler. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-04-11[PATCH] Configurable NODES_SHIFTYasunori Goto
Current implementations define NODES_SHIFT in include/asm-xxx/numnodes.h for each arch. Its definition is sometimes configurable. Indeed, ia64 defines 5 NODES_SHIFT values in the current git tree. But it looks a bit messy. SGI-SN2(ia64) system requires 1024 nodes, and the number of nodes already has been changeable by config. Suitable node's number may be changed in the future even if it is other architecture. So, I wrote configurable node's number. This patch set defines just default value for each arch which needs multi nodes except ia64. But, it is easy to change to configurable if necessary. On ia64 the number of nodes can be already configured in generic ia64 and SN2 config. But, NODES_SHIFT is defined for DIG64 and HP'S machine too. So, I changed it so that all platforms can be configured via CONFIG_NODES_SHIFT. It would be simpler. See also: http://marc.theaimsgroup.com/?l=linux-kernel&m=114358010523896&w=2 Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-30[PARISC] Add PREEMPT supportKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-30[PARISC] Enable ioremap functionality unconditionallyHelge Deller
Enable CONFIG_HPPA_IOREMAP by default and remove all now unnecessary code. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-30[PARISC] Add CONFIG_HPPA_IOREMAP to conditionally enable ioremapHelge Deller
Instead of making it a #define in asm/io.h, allow user to select to turn on IOREMAP from the config menu. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-26[PATCH] bitops: parisc: use generic bitopsAkinobu Mita
- remove __{,test_and_}{set,clear,change}_bit() and test_bit() - remove ffz() - remove generic_fls64() - remove generic_hweight{32,16,8}() - remove generic_hweight64() - remove sched_find_first_bit() - remove find_{next,first}{,_zero}_bit() - remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit() Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-14[PATCH] hrtimer: round up relative start time on low-res archesIngo Molnar
CONFIG_TIME_LOW_RES is a temporary way for architectures to signal that they simply return xtime in do_gettimeoffset(). In this corner-case we want to round up by resolution when starting a relative timer, to avoid short timeouts. This will go away with the GTOD framework. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-29[PARISC] Simplify DISCONTIGMEM in KconfigKyle McMartin
parisc was previously displaying both the mm/Kconfig memory model menu, and its own prompt. Remove prompt and have CONFIG_64BIT toggle between DISCONTIGMEM and FLATMEM. Also remove the EXPERIMENTAL from discontigmem support... It's been running fine for months (years?) now. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-08[PATCH] tiny: Make *[ug]id16 support optionalMatt Mackall
Configurable 16-bit UID and friends support This allows turning off the legacy 16 bit UID interfaces on embedded platforms. text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3328268 529040 190556 4047864 3dc3f8 vmlinux From: Adrian Bunk <bunk@stusta.de> UID16 was accidentially disabled for !EMBEDDED. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[PARISC] Update Kconfig for itimer selectionGrant Grundler
2.6.14-rc2-pa1: enable 100/250/1000HZ itimer selection Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Mark floppy as broken. Thanks Joel Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> make DISCONTIGMEM depend on 64BIT Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-09-07[PATCH] Kconfig fix (BLK_DEV_FD dependencies)viro@ZenIV.linux.org.uk
Sanitized and fixed floppy dependencies: split the messy dependencies for BLK_DEV_FD by introducing a new symbol (ARCH_MAY_HAVE_PC_FDC), making BLK_DEV_FD depend on that one and taking declarations of ARCH_MAY_HAVE_PC_FDC to arch/*/Kconfig. While we are at it, fixed several obvious cases when BLK_DEV_FD should have been excluded (architectures lacking asm/floppy.h are *not* going to have floppy.c compile, let alone work). If you can come up with better name for that ("this architecture might have working PC-compatible floppy disk controller"), you are more than welcome - just s/ARCH_MAY_HAVE_PC_FDC/your_prefered_name/g in the patch below... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-11[NET]: add a top-level Networking menu to *configSam Ravnborg
Create a new top-level menu named "Networking" thus moving net related options and protocol selection way from the drivers menu and up on the top-level where they belong. To implement this all architectures has to source "net/Kconfig" before drivers/*/Kconfig in their Kconfig file. This change has been implemented for all architectures. Device drivers for ordinary NIC's are still to be found in the Device Drivers section, but Bluetooth, IrDA and ax25 are located with their corresponding menu entries under the new networking menu item. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-23[PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLEDave Hansen
This used to be used to disable FLATMEM selection, but I decided to change it to be done generically when DISCONTIG is enabled. The option is unused, so this kills it. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23[PATCH] make each arch use mm/KconfigDave Hansen
For all architectures, this just means that you'll see a "Memory Model" choice in your architecture menu. For those that implement DISCONTIGMEM, you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool y" and make your users select DISCONTIGMEM right out of the new choice menu. The only disadvantage might be if you have some specific things that you need in your help option to explain something about DISCONTIGMEM. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-04[PATCH] ISA DMA Kconfig fixes - part 1Al Viro
A bunch of drivers use ISA DMA helpers or their equivalents for platforms that have ISA with different DMA controller (a lot of ARM boxen). Currently there is no way to put such dependency in Kconfig - CONFIG_ISA is not it (e.g. it is not set on platforms that have no ISA slots, but have on-board devices that pretend to be ISA ones). New symbol added - ISA_DMA_API. Set when we have functional enable_dma()/set_dma_mode()/etc. set of helpers. Next patches in the series will add missing dependencies for drivers that need them. I'm very carefully staying the hell out of the recurring flamefest on what exactly CONFIG_ISA would mean in ideal world - added symbol has a well-defined meaning and for now I really want to treat it as completely independent from the mess around CONFIG_ISA. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!