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* sh: Handle -ERESTART_RESTARTBLOCK for restartable syscalls.Paul Mundt2007-06-18
| | | | | | | | | | | | | | | The current implementation only handles -ERESTARTNOHAND, whereas we also need to handle -ERESTART_RESTARTBLOCK in the handle_signal() case for restartable system calls. As noted by Carl: This fixes the LTP test nanosleep03 - the current kernel causes -ERESTART_RESTARTBLOCK to reach user space rather than the correct -EINTR. Reported-by: Carl Shaw <shaw.carl@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: oops_enter()/oops_exit() in die().Paul Mundt2007-06-18
| | | | | | | | | | | | As Russell helpfully pointed out on linux-arch: http://marc.info/?l=linux-arch&m=118208089204630&w=2 We were missing the oops_enter/exit() in the sh die() implementation. As we do support lockdep, it's beneficial to add these calls so lockdep properly disables itself in the die() case. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix restartable syscall arg5 clobbering.Kaz Kojima2007-06-17
| | | | | | | | | | We use R0 as the 5th argument of syscall. When the syscall restarts after signal handling, we should restore the old value of R0. The attached patch does it. Without this patch, I've experienced random failures in the situation which signals are issued frequently. Signed-off-by: Kaz Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix se73180 platform device registration.Paul Mundt2007-06-03
| | | | | | Copy and paste error from se7343, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: ioremap() through PMB needs asm/mmu.h.Paul Mundt2007-06-03
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: voyagergx: Fix build warnings.Paul Mundt2007-06-03
| | | | | | | pr_debug() was using a %x on an unsigned long, which was making the build a bit noisy. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix SH4-202 clock fwk set_rate() mismatch.Paul Mundt2007-06-03
| | | | | | | With the SH7722 changes, ->set_rate() also takes an algo_id, SH4-202 was overlooked when this change went in. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: microdev: Fix compile warnings.Paul Mundt2007-06-03
| | | | | | irq.c needs linux/interrupt.h. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix in_nmi symbol build error.Paul Mundt2007-06-03
| | | | | | | | If CONFIG_KGDB_NMI is disabled, we're left with a stray in_nmi reference that can't be resolved. Move the symbol under the ifdef, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: support older gcc'sAndrew Morton2007-05-31
| | | | | | | Make my version of gcc happy. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: trivial build cleanups.Evgeniy Polyakov2007-05-31
| | | | | | | | | | Several errors were spotted during building for custom config (SMP included). Although SMP still does not compile (no ipi and __smp_call_function) and does not work, this looks a bit cleaner. Some other errors obtained via gcc-4.1.0 build. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix vsyscall build failure.Manuel Lauss2007-05-31
| | | | | | | | | | | | | | CC arch/sh/kernel/vsyscall/vsyscall.o a/arch/sh/kernel/vsyscall/vsyscall.c: In function 'arch_setup_additional_pages': a/arch/sh/kernel/vsyscall/vsyscall.c:63: error: dereferencing pointer to incomplete type a/arch/sh/kernel/vsyscall/vsyscall.c:67: error: dereferencing pointer to incomplete type a/arch/sh/kernel/vsyscall/vsyscall.c:82: error: dereferencing pointer to incomplete type a/arch/sh/kernel/vsyscall/vsyscall.c:85: error: dereferencing pointer to incomplete type a/arch/sh/kernel/vsyscall/vsyscall.c: In function 'arch_vma_name': a/arch/sh/kernel/vsyscall/vsyscall.c:91: error: dereferencing pointer to incomplete type Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Trivial fix for dma-api compile failure.Manuel Lauss2007-05-31
| | | | | | | | | | | | | | Trivial fix for arch/sh/drivers/dma/dma-api.c compile failure: CC arch/sh/drivers/dma/dma-api.o a/arch/sh/drivers/dma/dma-api.c: In function 'dma_wait_for_completion': a/arch/sh/drivers/dma/dma-api.c:233: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function) a/arch/sh/drivers/dma/dma-api.c:233: error: (Each undeclared identifier is reported only once a/arch/sh/drivers/dma/dma-api.c:233: error: for each function it appears in.) a/arch/sh/drivers/dma/dma-api.c:233: warning: implicit declaration of function 'schedule' Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix pcrel too far for in_nmi label.Takashi YOSHII2007-05-31
| | | | | | | Add lost in_nmi definition to solve pcrel too far. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: section mismatch fixes for system timer.Paul Mundt2007-05-22
| | | | | | Fix up a couple of section mismatch warnings regarding sys_timer. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2007-05-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix dreamcast build for IRQ changes. sh: Fix clock multiplier on SH7722. sh: Wire up kdump crash kernel exec in die(). sh: sr.bl toggling around idle sleep. sh: disable genrtc support. fs: Kill sh dependency for binfmt_flat. sh: Disable psw support for R7785RP. sh: Fix page size alignment in __copy_user_page(). sh: Fix up various compile warnings for SE boards. sh: Wire up signalfd/timerfd/eventfd syscalls. sh: revert addition of page fault notifiers spelling fixes: arch/sh/ input: hp680_ts compile fixes. sh: landisk: Header cleanups. sh: landisk: rtc-rs5c313 support. sh: Kill off pmb slab cache destructor. sh: Fix up psw build rules for r7780rp. sh: Shut up compiler warnings in __do_page_fault().
| * sh: Fix clock multiplier on SH7722.dmitry pervushin2007-05-21
| | | | | | | | | | | | | | | | This fixes up the master clock multiplier and initial rate propagation for the SH7722 clocks. Signed-off-by: dmitry pervushin <dimka@nomadgs.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Wire up kdump crash kernel exec in die().Paul Mundt2007-05-21
| | | | | | | | | | | | | | Now that we have the basic kdump support in place, add it in to die() so we can enter the crash kernel automatically. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: sr.bl toggling around idle sleep.Paul Mundt2007-05-21
| | | | | | | | | | | | | | | | | | | | | | As pointed out by Saito-san, without the sr.bl manipulation we can occasionally hit delays in the idle loop due to interrupt handling, so ensure that interrupts are blocked before going to sleep. At the same time, we throw in TIF_POLLING_NRFLAG for the !hlt_counter case (primarily used by the ST-40 parts). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Disable psw support for R7785RP.Paul Mundt2007-05-21
| | | | | | | | | | | | While R7780RP and R7780MP support this, R7785RP does not. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix page size alignment in __copy_user_page().Paul Mundt2007-05-21
| | | | | | | | | | | | | | | | | | | | | | SH-3 comes up with the PAGE_SIZE on a misaligned boundary: arch/sh/mm/copy_page.S: Assembler messages: arch/sh/mm/copy_page.S:132: Warning: misaligned data fix it up with explicit alignment. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up various compile warnings for SE boards.Paul Mundt2007-05-21
| | | | | | | | | | | | | | | | | | | | | | | | - setup-sh7750.c only defines the sh7751_ipr_map when building with SH7751 support. - 7722 Solution Engine was missing a mach-type entry, causing the macro in cf-enabler to be undefined. - arch/sh/mm/init.c needs linux/pagemap.h. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Wire up signalfd/timerfd/eventfd syscalls.Paul Mundt2007-05-21
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: revert addition of page fault notifiersChristoph Hellwig2007-05-21
| | | | | | | | | | | | | | | | | | | | | | | | Just at the time you added them on sh we're removing them from other architectures. As there's no user yet this patch just removes them completely. Once you actually have a kprobes patch it should follow the direct call to kprobes_fault_handler model that powerpc, s390 and sparc64 employ in 2.6.22-rc1 and that I'm updating other architectures to. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * spelling fixes: arch/sh/Simon Arlott2007-05-21
| | | | | | | | | | | | | | Spelling fixes in arch/sh/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: landisk: rtc-rs5c313 support.kogiidena2007-05-13
| | | | | | | | | | | | | | Add the rs5c313 platform device to the landisk setup code. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off pmb slab cache destructor.Paul Mundt2007-05-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the last remaining slab destructor in the kernel, which we kill off and move the resultant list tracking logic up to the pmb_alloc()/pmb_free() paths. As Christoph Lameter pointed out, it's potentially unsafe to be taking the list lock in the destructor anyways, so this is also more fundamentally correct. With this in place, we're all set for killing off slab destructors from the kernel entirely. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up psw build rules for r7780rp.Paul Mundt2007-05-13
| | | | | | | | | | | | | | When reordering the Makefile rules, the psw support was being clobbered. Fix it up so it's linked in again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Shut up compiler warnings in __do_page_fault().Paul Mundt2007-05-13
| | | | | | | | | | | | | | | | | | | | | | GCC doesn't seem to be able to figure this one out for itself, so just shut it up.. CC arch/sh/mm/fault.o arch/sh/mm/fault.c: In function '__do_page_fault': arch/sh/mm/fault.c:288: warning: 'ptl' may be used uninitialized in this function Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | all-archs: consolidate .data section definition in asm-genericSam Ravnborg2007-05-19
| | | | | | | | | | | | | | With this consolidation we can now modify the .data section definition in one spot for all archs. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | all-archs: consolidate .text section definition in asm-genericSam Ravnborg2007-05-19
|/ | | | | | Move definition of .text section to asm-generic. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2007-05-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix stacktrace simplification fallout. sh: SH7760 DMABRG support. sh: clockevent/clocksource/hrtimers/nohz TMU support. sh: Truncate MAX_ACTIVE_REGIONS for the common case. rtc: rtc-sh: Fix rtc_dev pointer for rtc_update_irq(). sh: Convert to common die chain. sh: Wire up utimensat syscall. sh: landisk mv_nr_irqs definition. sh: Fixup ndelay() xloops calculation for alternate HZ. sh: Add 32-bit opcode feature CPU flag. sh: Fix PC adjustments for varying opcode length. sh: Support for SH-2A 32-bit opcodes. sh: Kill off redundant __div64_32 symbol export. sh: Share exception vector table for SH-3/4. sh: Always define TRAPA_BUG_OPCODE. sh: __GFP_REPEAT for pte allocations, too. rtc: rtc-sh: Fix up dev_dbg() warnings. sh: generic quicklist support.
| * sh: Fix stacktrace simplification fallout.Paul Mundt2007-05-09
| | | | | | | | | | | | | | When the stacktrace simplification changes went in the function definition on SH got skipped, fix it up so things build again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: SH7760 DMABRG support.Manuel Lauss2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMABRG is a special DMA unit within the SH7760 which does data transfers from main memory to Audio units and USB shared memory. It has 3 IRQ lines which generate 10 events, which have to be masked unmasked and acked in a single 32bit register. It works independently from the tradition SH DMAC, but blocks usage of DMAC channel 0. This patch adds 2 functions to associate callbacks with DMABRG events and initialization. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: clockevent/clocksource/hrtimers/nohz TMU support.Paul Mundt2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds basic support for clockevents and clocksources, presently only implemented for TMU-based systems (which are the majority of SH-3 and SH-4 systems). The old NO_IDLE_HZ implementation is also dropped completely, the only users of this were on TMU-based systems anyways. More work needs to be done to generalize the TMU handling, in that the current implementation is rather tied to the notion of TMU0 and TMU1 utilization. Additionally, as more SH timers switch over to this scheme, we'll be able to gut most of the remaining system timer infrastructure that existed before. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Truncate MAX_ACTIVE_REGIONS for the common case.Paul Mundt2007-05-09
| | | | | | | | | | | | | | Most SH platforms aren't going to need more than a single active region, ones that need more can pad this out as necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Convert to common die chain.Paul Mundt2007-05-08
| | | | | | | | | | | | | | This went in immediately after SH added the die chain notifiers, so move over to that instead.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Wire up utimensat syscall.Paul Mundt2007-05-08
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: landisk mv_nr_irqs definition.kogiidena2007-05-08
| | | | | | | | | | | | | | | | | | Fix up the landisk build. When NR_IRQS was removed, landisk got missed in the updates. Update the machvec for the landisk IRQs to get it working again. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup ndelay() xloops calculation for alternate HZ.kogiidena2007-05-08
| | | | | | | | | | | | | | | | | | Currently the xloops calculation in ndelay() gets set to 0 when calculated with HZ=250, fix up how we do the HZ factoring in order to get this right for differing values. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add 32-bit opcode feature CPU flag.Paul Mundt2007-05-08
| | | | | | | | | | | | | | Add a CPU flag for the CPUs that support 32-bit opcodes, which gets passed down to userspace. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix PC adjustments for varying opcode length.Paul Mundt2007-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a few different cases for figuring out how to size the instruction. We read in the instruction located at regs->pc - 4 when rewinding the opcode to figure out if there's a 32-bit opcode before the faulting instruction, with a default of a - 2 adjustment on a mismatch. In practice this works for the cases where pc - 4 is just another 16-bit opcode, or we happen to have a 32-bit and a 16-bit immediately preceeding the pc value. In the cases where we aren't rewinding, this is much less ugly.. We also don't bother fixing up the places where we're explicitly dealing with 16-bit instructions, since this might lead to confusion regarding the encoding size possibilities on other CPU variants. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Support for SH-2A 32-bit opcodes.Paul Mundt2007-05-08
| | | | | | | | | | | | | | | | SH-2A supports both 16 and 32-bit instructions, add a simple helper for figuring out the instruction size in the places where there are hardcoded 16-bit assumptions. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off redundant __div64_32 symbol export.Paul Mundt2007-05-08
| | | | | | | | | | | | | | | | | | | | | | modpost noticed that __div64_32 was being exported twice: WARNING: lib/built-in: '__div64_32' exported twice. Previous export was in arch/sh/kernel/built-in.ko kill off the duplicate. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Share exception vector table for SH-3/4.Paul Mundt2007-05-08
| | | | | | | | | | | | | | | | | | | | | | The only difference between these at the moment are the FPU exceptions, and these are hidden away under CONFIG_SH_FPU (which is only set for the SH-4 case anyways..). This consolidates the two tables, and updates SH-4 to use the updated copy. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: generic quicklist support.Paul Mundt2007-05-08
| | | | | | | | | | | | | | | | This moves SH over to the generic quicklists. As per x86_64, we have special mappings for the PGDs, so these go on their own list.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | fix file specification in commentsUwe Kleine-König2007-05-09
|/ | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Add IRQF_IRQPOLL flag on shBernhard Walle2007-05-08
| | | | | | | | | | | | Add IRQF_IRQPOLL on each timer interrupt on SH2. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-08
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-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>
* Fixes and cleanups for earlyprintk aka boot consoleGerd Hoffmann2007-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The console subsystem already has an idea of a boot console, using the CON_BOOT flag. The implementation has some flaws though. The major problem is that presence of a boot console makes register_console() ignore any other console devices (unless explicitly specified on the kernel command line). This patch fixes the console selection code to *not* consider a boot console a full-featured one, so the first non-boot console registering will become the default console instead. This way the unregister call for the boot console in the register_console() function actually triggers and the handover from the boot console to the real console device works smoothly. Added a printk for the handover, so you know which console device the output goes to when the boot console stops printing messages. The disable_early_printk() call is obsolete with that patch, explicitly disabling the early console isn't needed any more as it works automagically with that patch. I've walked through the tree, dropped all disable_early_printk() instances found below arch/ and tagged the consoles with CON_BOOT if needed. The code is tested on x86, sh (thanks to Paul) and mips (thanks to Ralf). Changes to last version: Rediffed against -rc3, adapted to mips cleanups by Ralf, fixed "udbg-immortal" cmd line arg on powerpc. Signed-off-by: Gerd Hoffmann <kraxel@exsuse.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Andi Kleen <ak@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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