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* sched: x86: allow single-depth wchan outputIngo Molnar2007-10-15
| | | | | | | | | | | | | | | | | | sched.o gets smaller and faster if we compile it with -fomit-frame-pointers, so make this a config option. The cost is the loss of multi-depth wchan lookups - but SysRq-T is a sufficient replacement for them anyway, so their utility is much lower these days. the size difference is significant: text data bss dec hex filename 34005 3462 24 37491 9273 sched.o.before 33470 3462 24 36956 905c sched.o.after Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
* x86: force timer broadcast on late AMD C1E detectionThomas Gleixner2007-10-14
| | | | | | | | | | | | | | | | | | | | | The 64bit SMP bootup is slightly different to the 32bit one. It enables the boot CPU local APIC timer before all CPUs are brought up. Some AMD C1E systems have the C1E feature flag only set in the secondary CPU. Due to the early enable of the boot CPU local APIC timer the APIC timer is registered as a fully functional device. When we detect the wreckage during the bringup of the secondary CPU, we need to force the boot CPU into broadcast mode. Check the C1E caused APIC timer disable, when the secondary APIC timer is initialized. If the boot CPU APIC timer was registered as a functional clock event device, then fix this up and utilize the CLOCK_EVT_NOTIFY_BROADCAST_FORCE mechanism to force the already registered boot CPU APIC timer into broadcast mode. Tested by force injecting the failure mode. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: move local APIC timer init to the end of start_secondary()Thomas Gleixner2007-10-14
| | | | | | | Preparatory patch for the AMD C1E wreckage fixup. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: fix missing include for vsyscallDave Jones2007-10-14
| | | | | | | | | | | | | | | | | | | | > Maybe I just picked a bad time to try, but... > > arch/x86/kernel/alternative.c: In function 'apply_alternatives': > arch/x86/kernel/alternative.c:191: error: 'VSYSCALL_START' undeclared (first use in this function) > arch/x86/kernel/alternative.c:191: error: (Each undeclared identifier is reported only once > arch/x86/kernel/alternative.c:191: error: for each function it appears in.) > arch/x86/kernel/alternative.c:191: error: 'VSYSCALL_END' undeclared (first use in this function) > make[1]: *** [arch/x86/kernel/alternative.o] Error 1 > make: *** [arch/x86/kernel] Error 2 Try this. Include missing header for vsyscall. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* long vs. unsigned long - low-hanging fruits in driversAl Viro2007-10-14
| | | | | | | deal with signedness of the stuff passed to set_bit() et.al. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'master' of ↵Linus Torvalds2007-10-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (23 commits) [SPARC64]: virt_to_real_irq_table --> virt_irq_table [SPARC64]: virt_irq --> bucket mapping no longer necessary [SPARC64]: Kill ugly __bucket() macro. [SPARC64]: Kill ugly __irq_ino() macro. [SPARC64]: Only use bypass accesses to INO buckets. [SPARC64]: Update defconfig. [SPARC64]: Use sun4v VIRQ interfaces as intended. [SPARC64]: Allocate ivector_table dynamically. [SPARC64]: Access ivector_table[] using physical addresses. [SPARC64]: Make IVEC pointers 64-bit. [SPARC64]: Fix register usage in xor_raid_4(). [SPARC64]: Kill pci_memspace_mask. [SPARC64]: Consolidate MSI support code. [SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}. [SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes. [SPARC/64]: Prepare to remove of_platform_driver name. [SPARC32]: Add irqflags.h to sparc32 and use it from generic code. [SPARC64]: beautify vmlinux.lds [SPARC]: beautify vmlinux.lds [SPARC64]: Enable MSI on sun4u Fire PCI-E controllers. ...
| * [SPARC64]: virt_to_real_irq_table --> virt_irq_tableDavid S. Miller2007-10-14
| | | | | | | | | | | | | | It no longer translates to "real irqs" (aka. INO buckets) so reflect that by using a simpler name for it. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: virt_irq --> bucket mapping no longer necessaryDavid S. Miller2007-10-14
| | | | | | | | | | | | | | We used to need this to compute virt_irq --> ino, but that is no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Kill ugly __bucket() macro.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | | | | | All the users go through virt_irq_to_bucket() and essentially want to go from a virt_irq to an INO, but we have a way to do that already via virt_to_real_irq_table[].dev_ino. This also allows us to kill both virt_to_real_irq() and virt_irq_to_bucket(). Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Kill ugly __irq_ino() macro.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | We have a place to stick INO information in the virt_to_real_irq_table[], which is currently only used for VIRQs. And that is readily accessible from the one __irq_ino() call site. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Only use bypass accesses to INO buckets.David S. Miller2007-10-14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Update defconfig.David S. Miller2007-10-14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Use sun4v VIRQ interfaces as intended.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were simply concatenating the devhandle and devino and using that as the cookie, which defeats the entire purpose of the VIRQ hypervisor interfaces. Now that we use physical addresses for the INO buckets, we can allocate them dynamically for VIRQs and encode the cookies as ~__pa(bucket). This allows us to test for and decode the cookie with a simple: brlz $reg1, 1f xnor $reg1, %g0, $reg2 sequence. This works because bit 64 is never set in traditional INO vectors, and it is also never set in a physical address. So xnor'ing the physical address of the bucket always gives us a negative number, and thus a unique condition we can test cheaply. Inspired by ideas from Greg Onufer. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Allocate ivector_table dynamically.David S. Miller2007-10-14
| | | | | | | | | | | | | | Shrinks kernel by 16K compared to before the IVEC physical address changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Access ivector_table[] using physical addresses.David S. Miller2007-10-14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Make IVEC pointers 64-bit.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we chain IVEC entries using 32-bit "pointers" because we know that the ivector_table is in the main kernel image, thus below 4GB. This uses proper 64-bit pointers instead. Whilst this bloats up the kernel image size, this sets the infrastructure necessary to significantly shrink the kernel size by using physical addresses and dynamically allocating the ivector table. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix register usage in xor_raid_4().David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | Some typos led to using %i6/%i7 instead of %l6/%l7 in loads which is really really bad because those are the frame pointer and return PC. Based upon a raid5 crash report by Bertrand Joel. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Kill pci_memspace_mask.David S. Miller2007-10-14
| | | | | | | | | | | | | | It is totally unnecessary as the needed information is properly encoded in the resources. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Consolidate MSI support code.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This also makes us use the MSI queues correctly. Each MSI queue is serviced by a normal sun4u/sun4v INO interrupt handler. This handler runs the MSI queue and dispatches the virtual interrupts indicated by arriving MSIs in that MSI queue. All of the common logic is placed in pci_msi.c, with callbacks to handle the PCI controller specific aspects of the operations. This common infrastructure will make it much easier to add MSG support. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.Stephen Rothwell2007-10-14
| | | | | | | | | | | | | | | | We no longer initialise the name field of the of_platform_driver, but use the name field of the embedded device_driver's name field instead. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to Tom Callaway for the excellent bug report and test case. sys_ipc() has several problems, most to due with semaphore call handling: 1) 'err' return should be a 'long' 2) "union semun" is passed in a register on 64-bit compared to 32-bit which provides it on the stack and therefore by reference 3) Second and third arguments to SEMCTL are swapped compared to 32-bit. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC/64]: Prepare to remove of_platform_driver name.Stephen Rothwell2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | The name field of of_platform_driver is just copied into the included device_driver. By not overriding an already initialised device_driver name, we can convert the drivers over time to stop using the of_platform_driver name. Also we were not copying the owner field from of_platform_driver, so do the same with it. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC32]: Add irqflags.h to sparc32 and use it from generic code.Robert Reif2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added asm-sparc/irqflags.h and moved irq related code from system.h to it. Renamed local_irq functions to raw_local_irq in irq.c. Modified system.h to include linux/irqflags.h which includes asm/irqflags.h. Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug. This is the first step in adding IRQ-flags state tracing as outlined in Documentation/irqflags-tracing.txt. These changes should be harmless because they just move things around and rename them. The next step is making the lowlevel entry code modifications which to be honest are beyond my capabilities at this point. Boot tested on an ss20 running an SMP kernel. Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: beautify vmlinux.ldsSam Ravnborg2007-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | Apply a consistent format to vmlinux.lds. The file is now to some degree readable. In addition move several labels inside the braces such that they reflect the actual start address of a section. Without this the label would not reflect if ld added alignment. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC]: beautify vmlinux.ldsSam Ravnborg2007-10-14
| | | | | | | | | | | | | | | | | | | | | | Make vmlinux.lds almost readable. When going through the file fixed the following: - Use PAGE_SIZE as replacement for hardcoded 4096 - Moves label definitions inside {} to avoid ld alignment that may be added between label and section Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Enable MSI on sun4u Fire PCI-E controllers.David S. Miller2007-10-14
| | | | | | | | | | | | | | | | The support code is identical to the hypervisor sun4v stuff, just replacing the hypervisor calls with register reads and writes in the Fire controller. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Lite5200 shouldn't mess with ROOT_DEVGrant Likely2007-10-14
|/ | | | | | | | | | | | There is no good reason for board platform code to mess with the ROOT_DEV. Remove it from all in-tree platforms except powermac This is a follow on to commit 745e1027751acbc1f14f8bbef378b491242b9c83. The original patch had this change to lite5200.c, but it got dropped in the psycho madness that is the 2.6.24 merge window. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i2c/tps65010: New-style driver updates, part 2David Brownell2007-10-13
| | | | | | | | | | | | | Switch the tps65010 driver into a "new-style" I2C driver, and convert all of its in-tree users (board support for OSK, H2, H3) accordingly. That accounts for most of the board-specific code in this driver; the rest of that code is now moved into board-specific initcalls. Also remove some of the many now-superfluous #includes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* missing includes in arch/powerpc/platforms/52xx/lite5200.cAl Viro2007-10-13
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-10-13
|\ | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] SMP: Fix use of cpumasks. [MIPS] Revert "[MIPS] tlbex.c: Cleanup __init usage." [MIPS] CFE: Add missing parenthesis.
| * [MIPS] SMP: Fix use of cpumasks.Ralf Baechle2007-10-12
| | | | | | | | | | | | Noticed by Nick Piggin <nickpiggin@yahoo.com.au>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Revert "[MIPS] tlbex.c: Cleanup __init usage."Ralf Baechle2007-10-12
| | | | | | | | | | | | | | | | This reverts commit aaf76a3245c02faba51c96b9a340c14d6bb0dcc0. As requested by ranck Bui-Huu <fbuihuu@gmail.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Delete filenames in comments.Dave Jones2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the x86 merge, lots of files that referenced their own filenames are no longer correct. Rather than keep them up to date, just delete them, as they add no real value. Additionally: - fix up comment formatting in scx200_32.c - Remove a credit from myself in setup_64.c from a time when we had no SCM - remove longwinded history from tsc_32.c which can be figured out from git. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | minimal build fixes for uml (fallout from x86 merge)Al Viro2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a) include/asm-um/arch can't just point to include/asm-$(SUBARCH) now b) arch/{i386,x86_64}/crypto are merged now c) subarch-obj needed changes d) cpufeature_64.h should pull "cpufeature_32.h", not <asm/cpufeature_32.h> since it can be included from asm-um/cpufeature.h e) in case of uml-i386 we need CONFIG_X86_32 for make and gcc, but not for Kconfig f) sysctl.c shouldn't do vdso_enabled for uml-i386 (actually, that one should be registered from corresponding arch/*/kernel/*, with ifdef going away; that's a separate patch, though). With that and with Stephen's patch ("[PATCH net-2.6] uml: hard_header fix") we have uml allmodconfig building both on i386 and amd64. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh64-2.6Linus Torvalds2007-10-13
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh64-2.6: sh64: mach-cayman: Build fixes. sh64: Symbol export fixups. sh64: linker script tidying and alignment fixups. sh64: Set KBUILD_IMAGE to make the rpm target happy. sh64: Kill off obsolete linux/blk.h reference. sh64: cleanup struct irqaction initializers. sh64: Kill off dead gdb stub symbol. sh64: alphanumeric display only on Cayman. sh64: Add defconfigs for mach-sim and mach-harp. sh64: update cayman defconfig. sh64: Tidy up Kconfig dependencies. sh64: Move consistent DMA routines to arch/sh64/mm/. sh64: Some symbol exports and build fixes. sh64: mach-sim: Build fixes. sh64: mach-harp: Build fixes. sh64: Kill off duplicate frame pointer option. sh64: Kill off dead ROM-RAM and generic boards. sh64: Tidy up includes for Cayman board. sh64: Move *_p() I/O routine variants to io.h.
| * | sh64: mach-cayman: Build fixes.Paul Mundt2007-10-09
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Symbol export fixups.Paul Mundt2007-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | Kill off the __div_table reference, modern compilers don't have it, and old compilers can't build the sh64 kernel anyways. __copy_user also needs to be exported to satisfy module builds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: linker script tidying and alignment fixups.Paul Mundt2007-10-09
| | | | | | | | | | | | | | | | | | | | | Use more of the generic section helpers, and get the alignment for some of the sections reduced. Follows the sh change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Set KBUILD_IMAGE to make the rpm target happy.Paul Mundt2007-10-09
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Kill off obsolete linux/blk.h reference.Paul Mundt2007-10-09
| | | | | | | | | | | | | | | | | | | | | This is just dead code, kill it off.. Reported-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: cleanup struct irqaction initializers.Thomas Gleixner2007-10-03
| | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Kill off dead gdb stub symbol.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | | | | There's no supported GDB stub in the kernel, kill off the dead config option for it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: alphanumeric display only on Cayman.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | | | | Dependency cleanup. The non-cayman boards don't have the mach callbacks for this and build error badness ensues. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Add defconfigs for mach-sim and mach-harp.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | defconfigs for the simulator and ST50-HARP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: update cayman defconfig.Paul Mundt2007-10-01
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Tidy up Kconfig dependencies.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | | | | | | | Now that the ROM-RAM and generic boards are killed off, refactor the dependencies accordingly. Those were the only special cases, so all of the Kconfig dependency hell gets much cleaner as a result. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Move consistent DMA routines to arch/sh64/mm/.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The consistent DMA stuff was evolved from the old PCI DMA mapping functions. As this has been overhauled, it's something that is used by the generic DMA mapping code, and thus, has no intrinsic PCI dependence. Move the routines somewhere more sensible (same place as sh), and fix up the build for CONFIG_PCI=n in the process. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Some symbol exports and build fixes.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | | | | | | | This fixes up misc build issues that were hit on the non-cayman boards. Additionally, quite a few symbols needed to be exported to fix the module build. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: mach-sim: Build fixes.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | Follow the mach-harp changes to get the simulator support building. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: mach-harp: Build fixes.Paul Mundt2007-10-01
| | | | | | | | | | | | | | | | | | Get the ST50-HARP building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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