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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-04-304-88/+43
|\ | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: remove duplicated include sparc: Add kgdb support. kgdbts: Sparc needs sstep emulation. sparc32: Kill smp_message_pass() and related code. sparc64: Kill PIL_RESERVED, unused. sparc64: Split entry.S up into seperate files.
| * sparc: Add kgdb support.David S. Miller2008-04-293-86/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Current limitations: 1) On SMP single stepping has some fundamental issues, shared with other sw single-step architectures such as mips and arm. 2) On 32-bit sparc we don't support SMP kgdb yet. That requires some reworking of the IPI mechanisms and infrastructure on that platform. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc32: Kill smp_message_pass() and related code.David S. Miller2008-04-291-2/+0
| | | | | | | | | | | | | | | | Completely unused, and it just makes the SMP message passing code on 32-bit sparc look more complex than it is. Signed-off-by: David S. Miller <davem@davemloft.net>
* | kernel: Move arches to use common unaligned accessHarvey Harrison2008-04-291-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unaligned access is ok for the following arches: cris, m68k, mn10300, powerpc, s390, x86 Arches that use the memmove implementation for native endian, and the byteshifting for the opposite endianness. h8300, m32r, xtensa Packed struct for native endian, byteshifting for other endian: alpha, blackfin, ia64, parisc, sparc, sparc64, mips, sh m86knommu is generic_be for Coldfire, otherwise unaligned access is ok. frv, arm chooses endianness based on compiler settings, uses the byteshifting versions. Remove the unaligned trap handler from frv as it is now unused. v850 is le, uses the byteshifting versions for both be and le. Remove the now unused asm-generic implementation. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-04-281-3/+1
|\ \ | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: video drivers: add facility level sparc: tcx.c make tcx_init and tcx_exit static sparc: ffb.c make ffb_init and ffb_exit static sparc: cg14.c make cg14_init and cg15_exit static sparc: bw2.c fix bw2_exit sparc64: Fix accidental syscall restart on child return from clone/fork/vfork. sparc64: Clean up handling of pt_regs trap type encoding. sparc: Remove old style signal frame support. sparc64: Kill bogus RT_ALIGNEDSZ macro from signal.c sparc: sunzilog.c remove unused argument sparc: fix drivers/video/tcx.c warning sparc64: Kill unused local ISA bus layer. input: Rewrite sparcspkr device probing. sparc64: Do not ignore 'pmu' device ranges. sparc64: Kill ISA_FLOPPY_WORKS code. sparc64: Kill CONFIG_SPARC32_COMPAT sparc64: Cleanups and corrections for arch/sparc64/Kconfig sparc64: Fix wedged irq regression.
| * sparc: Remove old style signal frame support.David S. Miller2008-04-271-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Back around the same time we were bootstrapping the first 32-bit sparc Linux kernel with a SunOS userland, we made the signal frame match that of SunOS. By the time we even started putting together a native Linux userland for 32-bit Sparc we realized this layout wasn't sufficient for Linux's needs. Therefore we changed the layout, yet kept support for the old style signal frame layout in there. The detection mechanism is that we had sys_sigaction() start passing in a negative signal number to indicate "new style signal frames please". Anyways, no binaries exist in the world that use the old stuff. In fact, I bet Jakub Jelinek and myself are the only two people who ever had such binaries to be honest. So let's get rid of this stuff. I added an assertion using WARN_ON_ONCE() that makes sure 32-bit applications are passing in that negative signal number still. Signed-off-by: David S. Miller <davem@davemloft.net>
* | mm: introduce pte_special pte bitNick Piggin2008-04-281-0/+7
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | s390 for one, cannot implement VM_MIXEDMAP with pfn_valid, due to their memory model (which is more dynamic than most). Instead, they had proposed to implement it with an additional path through vm_normal_page(), using a bit in the pte to determine whether or not the page should be refcounted: vm_normal_page() { ... if (unlikely(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))) { if (vma->vm_flags & VM_MIXEDMAP) { #ifdef s390 if (!mixedmap_refcount_pte(pte)) return NULL; #else if (!pfn_valid(pfn)) return NULL; #endif goto out; } ... } This is fine, however if we are allowed to use a bit in the pte to determine refcountedness, we can use that to _completely_ replace all the vma based schemes. So instead of adding more cases to the already complex vma-based scheme, we can have a clearly seperate and simple pte-based scheme (and get slightly better code generation in the process): vm_normal_page() { #ifdef s390 if (!mixedmap_refcount_pte(pte)) return NULL; return pte_page(pte); #else ... #endif } And finally, we may rather make this concept usable by any architecture rather than making it s390 only, so implement a new type of pte state for this. Unfortunately the old vma based code must stay, because some architectures may not be able to spare pte bits. This makes vm_normal_page a little bit more ugly than we would like, but the 2 cases are clearly seperate. So introduce a pte_special pte state, and use it in mm/memory.c. It is currently a noop for all architectures, so this doesn't actually result in any compiled code changes to mm/memory.o. BTW: I haven't put vm_normal_page() into arch code as-per an earlier suggestion. The reason is that, regardless of where vm_normal_page is actually implemented, the *abstraction* is still exactly the same. Also, while it depends on whether the architecture has pte_special or not, that is the only two possible cases, and it really isn't an arch specific function -- the role of the arch code should be to provide primitive functions and accessors with which to build the core code; pte_special does that. We do not want architectures to know or care about vm_normal_page itself, and we definitely don't want them being able to invent something new there out of sight of mm/ code. If we made vm_normal_page an arch function, then we have to make vm_insert_mixed (next patch) an arch function too. So I don't think moving it to arch code fundamentally improves any abstractions, while it does practically make the code more difficult to follow, for both mm and arch developers, and easier to misuse. [akpm@linux-foundation.org: build fix] Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Carsten Otte <cotte@de.ibm.com> Cc: Jared Hulbert <jaredeh@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SPARC64]: NUMA device infrastructure.David S. Miller2008-04-232-0/+7
| | | | | | Record and propagate NUMA information for devices. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-04-2114-554/+2
|\ | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: Remove SunOS and Solaris binary support.
| * [SPARC]: Remove SunOS and Solaris binary support.David S. Miller2008-04-2114-554/+2
| | | | | | | | | | | | As per Documentation/feature-removal-schedule.txt Signed-off-by: David S. Miller <davem@davemloft.net>
* | [SPARC] minor irq handler cleanupsJeff Garzik2008-04-201-1/+1
|/ | | | | | | | | - mark timer_interrupt() static - sparc_floppy_request_irq() prototype should use irq_handler_t Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2008-04-181-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (58 commits) ide: remove ide_init_default_irq() macro ide: move default IDE ports setup to ide_generic host driver ide: remove obsoleted "idex=noprobe" kernel parameter (take 2) ide: remove needless hwif->irq check from ide_hwif_configure() ide: init hwif->{io_ports,irq} explicitly in legacy VLB host drivers ide: limit legacy VLB host drivers to alpha, x86 and mips cmd640: init hwif->{io_ports,irq} explicitly cmd640: cleanup setup_device_ptrs() ide: add ide-4drives host driver (take 3) ide: remove ppc ifdef from init_ide_data() ide: remove ide_default_io_ctl() macro ide: remove CONFIG_IDE_ARCH_OBSOLETE_INIT ide: add CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS (take 2) ppc/pmac: remove no longer needed IDE quirk ppc: don't include <linux/ide.h> ppc: remove ppc_ide_md ppc/pplus: remove ppc_ide_md.ide_init_hwif hook ppc/sandpoint: remove ppc_ide_md hooks ppc/lopec: remove ppc_ide_md hooks ppc/mpc8xx: remove ppc_ide_md hooks ...
| * ide: remove ide_default_io_ctl() macroBartlomiej Zolnierkiewicz2008-04-181-2/+0
| | | | | | | | | | | | | | It is always == '((base) + 0x206)' if CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS=y and it is not needed otherwise (arm, blackfin, parisc, ppc64, sh, sparc[64]). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Generic semaphore implementationMatthew Wilcox2008-04-171-192/+1
|/ | | | | | | | | | | Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
* kvm: provide kvm.h for all architecture: fixes headers_installChristian Borntraeger2008-04-021-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently include/linux/kvm.h is not considered by make headers_install, because Kbuild cannot handle " unifdef-$(CONFIG_FOO) += foo.h. This problem was introduced by commit fb56dbb31c4738a3918db81fd24da732ce3b4ae6 Author: Avi Kivity <avi@qumranet.com> Date: Sun Dec 2 10:50:06 2007 +0200 KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h> includes, not existing. Rather than add a zillion <asm/kvm.h>s, export kvm. only if the arch actually supports it. Signed-off-by: Avi Kivity <avi@qumranet.com> which makes this an 2.6.25 regression. One way of solving the issue is to enhance Kbuild, but Avi and David conviced me, that changing headers_install is not the way to go. This patch changes the definition for linux/kvm.h to unifdef-y. If  unifdef-y is used for linux/kvm.h "make headers_check" will fail on all architectures without asm/kvm.h. Therefore, this patch also provides asm/kvm.h on all architectures. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Avi Kivity <avi@qumranet.com> Cc: Sam Ravnborg <sam@ravnborg.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SPARC]: Add reboot_command[] extern decl to asm/system.hDavid S. Miller2008-02-281-0/+2
| | | | | | Kill off some sparse warnings. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/a.out.hDavid S. Miller2008-02-091-12/+19
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/fb.hDavid S. Miller2008-02-091-4/+12
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/errno.hDavid S. Miller2008-02-091-1/+0
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/device.hDavid S. Miller2008-02-091-2/+0
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/current.hDavid S. Miller2008-02-091-14/+17
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/cache.hDavid S. Miller2008-02-091-6/+15
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/byteorder.hDavid S. Miller2008-02-091-4/+47
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/bugs.hDavid S. Miller2008-02-091-5/+13
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/bug.hDavid S. Miller2008-02-091-15/+3
| | | | | | | | Note that because of minimum compiler version enforcement in linux/compiler.h these days the check for sparc32 buggy __builtin_trap() can be safely removed. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Kill BSD errno translation table and header files.David S. Miller2008-02-091-94/+0
| | | | | | Completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge asm-sparc{,64}/bpp.hDavid S. Miller2008-02-091-1/+1
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Merge include/asm-sparc{,64}/prom.hDavid S. Miller2008-02-091-1/+10
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Remove of_platform_device_createStephen Rothwell2008-02-091-5/+0
| | | | | | | There are no callers of this on the Sparc platforms. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* CONFIG_HIGHPTE vs. sub-page page tables.Martin Schwidefsky2008-02-082-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Background: I've implemented 1K/2K page tables for s390. These sub-page page tables are required to properly support the s390 virtualization instruction with KVM. The SIE instruction requires that the page tables have 256 page table entries (pte) followed by 256 page status table entries (pgste). The pgstes are only required if the process is using the SIE instruction. The pgstes are updated by the hardware and by the hypervisor for a number of reasons, one of them is dirty and reference bit tracking. To avoid wasting memory the standard pte table allocation should return 1K/2K (31/64 bit) and 2K/4K if the process is using SIE. Problem: Page size on s390 is 4K, page table size is 1K or 2K. That means the s390 version for pte_alloc_one cannot return a pointer to a struct page. Trouble is that with the CONFIG_HIGHPTE feature on x86 pte_alloc_one cannot return a pointer to a pte either, since that would require more than 32 bit for the return value of pte_alloc_one (and the pte * would not be accessible since its not kmapped). Solution: The only solution I found to this dilemma is a new typedef: a pgtable_t. For s390 pgtable_t will be a (pte *) - to be introduced with a later patch. For everybody else it will be a (struct page *). The additional problem with the initialization of the ptl lock and the NR_PAGETABLE accounting is solved with a constructor pgtable_page_ctor and a destructor pgtable_page_dtor. The page table allocation and free functions need to call these two whenever a page table page is allocated or freed. pmd_populate will get a pgtable_t instead of a struct page pointer. To get the pgtable_t back from a pmd entry that has been installed with pmd_populate a new function pmd_pgtable is added. It replaces the pmd_page call in free_pte_range and apply_to_pte_range. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.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>
* avoid overflows in kernel/time.cH. Peter Anvin2008-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the conversion factor between jiffies and milli- or microseconds is not a single multiply or divide, as for the case of HZ == 300, we currently do a multiply followed by a divide. The intervening result, however, is subject to overflows, especially since the fraction is not simplified (for HZ == 300, we multiply by 300 and divide by 1000). This is exposed to the user when passing a large timeout to poll(), for example. This patch replaces the multiply-divide with a reciprocal multiplication on 32-bit platforms. When the input is an unsigned long, there is no portable way to do this on 64-bit platforms there is no portable way to do this since it requires a 128-bit intermediate result (which gcc does support on 64-bit platforms but may generate libgcc calls, e.g. on 64-bit s390), but since the output is a 32-bit integer in the cases affected, just simplify the multiply-divide (*3/10 instead of *300/1000). The reciprocal multiply used can have off-by-one errors in the upper half of the valid output range. This could be avoided at the expense of having to deal with a potential 65-bit intermediate result. Since the intent is to avoid overflow problems and most of the other time conversions are only semiexact, the off-by-one errors were considered an acceptable tradeoff. At Ralf Baechle's suggestion, this version uses a Perl script to compute the necessary constants. We already have dependencies on Perl for kernel compiles. This does, however, require the Perl module Math::BigInt, which is included in the standard Perl distribution starting with version 5.8.0. In order to support older versions of Perl, include a table of canned constants in the script itself, and structure the script so that Math::BigInt isn't required if pulling values from said table. Running the script requires that the HZ value is available from the Makefile. Thus, this patch also adds the Kconfig variable CONFIG_HZ to the architectures which didn't already have it (alpha, cris, frv, h8300, m32r, m68k, m68knommu, sparc, v850, and xtensa.) It does *not* touch the sh or sh64 architectures, since Paul Mundt has dealt with those separately in the sh tree. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Ralf Baechle <ralf@linux-mips.org>, Cc: Sam Ravnborg <sam@ravnborg.org>, Cc: Paul Mundt <lethal@linux-sh.org>, Cc: Richard Henderson <rth@twiddle.net>, Cc: Michael Starvik <starvik@axis.com>, Cc: David Howells <dhowells@redhat.com>, Cc: Yoshinori Sato <ysato@users.sourceforge.jp>, Cc: Hirokazu Takata <takata@linux-m32r.org>, Cc: Geert Uytterhoeven <geert@linux-m68k.org>, Cc: Roman Zippel <zippel@linux-m68k.org>, Cc: William L. Irwin <sparclinux@vger.kernel.org>, Cc: Chris Zankel <chris@zankel.net>, Cc: H. Peter Anvin <hpa@zytor.com>, Cc: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* asm-*/posix_types.h: scrub __GLIBC__Mike Frysinger2008-02-081-6/+2
| | | | | | | | | | | | | | Some arches (like alpha and ia64) already have a clean posix_types.h header. This brings all the others in line by removing all references to __GLIBC__ (and some undocumented __USE_ALL). Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@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>
* aout: remove unnecessary inclusions of {asm, linux}/a.out.hDavid Howells2008-02-081-1/+0
| | | | | | | | | | Remove now unnecessary inclusions of {asm,linux}/a.out.h. [akpm@linux-foundation.org: fix alpha build] 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>
* aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUTDavid Howells2008-02-081-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suppress A.OUT library support if CONFIG_ARCH_SUPPORTS_AOUT is not set. Not all architectures support the A.OUT binfmt, so the ELF binfmt should not be permitted to go looking for A.OUT libraries to load in such a case. Not only that, but under such conditions A.OUT core dumps are not produced either. To make this work, this patch also does the following: (1) Makes the existence of the contents of linux/a.out.h contingent on CONFIG_ARCH_SUPPORTS_AOUT. (2) Renames dump_thread() to aout_dump_thread() as it's only called by A.OUT core dumping code. (3) Moves aout_dump_thread() into asm/a.out-core.h and makes it inline. This is then included only where needed. This means that this bit of arch code will be stored in the appropriate A.OUT binfmt module rather than the core kernel. (4) Drops A.OUT support for Blackfin (according to Mike Frysinger it's not needed) and FRV. This patch depends on the previous patch to move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. [jdike@addtoit.com: uml: re-remove accidentally restored code] Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* aout: move STACK_TOP[_MAX] to asm/processor.hDavid Howells2008-02-082-9/+4
| | | | | | | | | | Move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. 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>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-02-072-37/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC32]: Use regsets in arch_ptrace(). [SPARC64]: Use regsets in arch_ptrace(). [SPARC32]: Use regsets for ELF core dumping. [SPARC64]: Use regsets for ELF core dumping. [SPARC64]: Remove unintentional ptrace debugging messages. [SPARC]: Move over to arch_ptrace(). [SPARC]: Remove PTRACE_SUN* handling. [SPARC]: Kill DEBUG_PTRACE code. [SPARC32]: Add user regset support. [SPARC64]: Add user regsets. [SPARC64]: Fix booting on non-zero cpu.
| * [SPARC32]: Use regsets for ELF core dumping.David S. Miller2008-02-071-30/+8
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC]: Move over to arch_ptrace().David S. Miller2008-02-071-5/+0
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC]: Remove PTRACE_SUN* handling.David S. Miller2008-02-071-2/+0
| | | | | | | | | | | | | | | | Supporting SunOS ptrace() is pretty pointless and these kinds of quirks keep us from being able to share more code with other platforms. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Add cmpxchg_local to sparc, move __cmpxchg to system.hMathieu Desnoyers2008-02-072-36/+48
| | | | | | | | | | | | | | | | | | | | | | Move cmpxchg and add cmpxchg_local to system.h. Use the new generic cmpxchg_local (disables interrupt). Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer neededKirill A. Shutemov2008-02-072-7/+0
|/ | | | | | | | | | | | | asm/elf.h, asm/page.h and asm/user.h don't export to userspace now, so we can drop #ifdef __KERNEL__ for them. [k.shutemov@gmail.com: remove #ifdef __KERNEL_] Signed-off-by: Kirill A. Shutemov <k.shutemov@gmail.com> Reviewed-by: David Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Kirill A. Shutemov <k.shutemov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SPARC]: Add new timerfd syscall entries.David S. Miller2008-02-061-2/+4
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* add mm argument to pte/pmd/pud/pgd_freeBenjamin Herrenschmidt2008-02-051-6/+6
| | | | | | | | | | | | | | | | | | (with Martin Schwidefsky <schwidefsky@de.ibm.com>) The pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as first argument. The free functions do not get the mm_struct argument. This is 1) asymmetrical and 2) to do mm related page table allocations the mm argument is needed on the free function as well. [kamalesh@linux.vnet.ibm.com: i386 fix] [akpm@linux-foundation.org: coding-syle fixes] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET]: Introducing socket mark socket option.Laszlo Attila Toth2008-01-311-0/+2
| | | | | | | | | | | | A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC32]: Silence sparc32 warnings on missing syscalls.Martin Habets2007-12-141-0/+9
| | | | | | | | | Silence sparc32 warnings on missing syscalls, these won't be added. This patch is based on this mail: http://www.mail-archive.com/linux-arch@vger.kernel.org/msg02571.html Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC32]: __inline__ --> inlineDavid S. Miller2007-10-276-27/+23
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* Add CONFIG_DEBUG_SG sg validationJens Axboe2007-10-221-0/+3
| | | | | | | Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Change table chaining layoutJens Axboe2007-10-221-1/+1
| | | | | | | | | | | | | | | | | Change the page member of the scatterlist structure to be an unsigned long, and encode more stuff in the lower bits: - Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located at sg + 1. - Bit 0 set: this is a chain entry, the next real entry is at ->page_link with the two low bits masked off. - Bit 1 set: this is the final entry in the sg entry. sg_next() will return NULL when passed such an entry. It's thus important that sg table users use the proper accessors to get and set the page member. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ide: add CONFIG_IDE_ARCH_OBSOLETE_INITBartlomiej Zolnierkiewicz2007-10-201-1/+0
| | | | | | | Add CONFIG_IDE_ARCH_OBSOLETE_INIT to drivers/ide/Kconfig and use it instead of defining IDE_ARCH_OBSOLETE_INIT in <arch/ide.h>. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* forbid asm/bitops.h direct inclusionJiri Slaby2007-10-191-0/+4
| | | | | | | | | | | | | forbid asm/bitops.h direct inclusion Because of compile errors that may occur after bit changes if asm/bitops.h is included directly without e.g. linux/kernel.h which includes linux/bitops.h, forbid direct inclusion of asm/bitops.h. Thanks to Adrian Bunk. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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