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2007-05-09Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds26-329/+495
* 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.
2007-05-09sh: Fix stacktrace simplification fallout.Paul Mundt1-1/+1
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>
2007-05-09sh: SH7760 DMABRG support.Manuel Lauss4-9/+214
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>
2007-05-09sh: clockevent/clocksource/hrtimers/nohz TMU support.Paul Mundt4-212/+174
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>
2007-05-09fix file specification in commentsUwe Kleine-König7-7/+7
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>
2007-05-09sh: Truncate MAX_ACTIVE_REGIONS for the common case.Paul Mundt1-0/+4
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>
2007-05-09sh: Convert to common die chain.Paul Mundt3-19/+5
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>
2007-05-09sh: Wire up utimensat syscall.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09sh: landisk mv_nr_irqs definition.kogiidena1-0/+1
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>
2007-05-09sh: Fixup ndelay() xloops calculation for alternate HZ.kogiidena1-2/+3
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>
2007-05-09sh: Add 32-bit opcode feature CPU flag.Paul Mundt2-1/+2
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>
2007-05-09sh: Fix PC adjustments for varying opcode length.Paul Mundt5-10/+14
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>
2007-05-09sh: Support for SH-2A 32-bit opcodes.Paul Mundt5-10/+65
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>
2007-05-09sh: Kill off redundant __div64_32 symbol export.Paul Mundt1-2/+0
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>
2007-05-09sh: Share exception vector table for SH-3/4.Paul Mundt3-70/+11
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>
2007-05-09sh: generic quicklist support.Paul Mundt3-0/+7
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>
2007-05-08Add IRQF_IRQPOLL flag on shBernhard Walle3-3/+3
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>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap7-7/+0
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>
2007-05-08Fixes and cleanups for earlyprintk aka boot consoleGerd Hoffmann1-12/+6
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>
2007-05-08simplify the stacktrace codeChristoph Hellwig1-8/+1
Simplify the stacktrace code: - remove the unused task argument to save_stack_trace, it's always current - remove the all_contexts flag, it's alwasy 0 Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Cc: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08use SLAB_PANIC flag cleanupAkinobu Mita1-3/+3
Use SLAB_PANIC and delete duplicated panic(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Ian Molton <spyro@f2s.com> Cc: David Howells <dhowells@redhat.com> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> 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>
2007-05-07sh: R7785RP board updates.Ryusuke Sakato3-21/+16
Some fixups for the R7785RP board. Gets iVDR working. Signed-off-by: Ryusuke Sakato <sakato.ryusuke@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Update r7780rp defconfig.Paul Mundt1-26/+82
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add die chain notifiers.Paul Mundt3-7/+66
Add the atomic die chains in, kprobes needs these. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Fix APM emulation on hp6xx.Kristoffer Ericson1-2/+2
With the shared APM emulation code being introduced, hp6xx was missed in the conversion. Get it building again. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Wire up more IRQs for SH7709.Takashi YOSHII1-10/+19
hp6xx requires some additional IRQs that aren't currently enabled in the SH7709 setup code. Wire them up. Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com> Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Solution Engine 7722 board support.Ryusuke Sakato7-167/+480
This adds more full-featured support for the SH7722 Solution Engine. Previously this was using the generic board, and lacked most of the peripheral support. Signed-off-by: Ryusuke Sakato <sakato.ryusuke@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: kdump support.Paul Mundt5-4/+92
This adds support for kexec based crash dumps. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Move clock reporting to its own proc entry.Paul Mundt2-32/+46
Previously this was done in cpuinfo, but with the number of clocks growing, it makes more sense to place this in a different proc entry. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Solution Engine SH7705 board and CPU updates.Nobuhiro Iwamatsu8-43/+212
This fixes up SH7705 CPU support and the SE7705 board for some of the recent changes. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: SH7722 clock framework support.dmitry pervushin4-6/+627
This adds support for the SH7722 (MobileR) to the clock framework. Signed-off-by: dmitry pervushin <dimka@nomadgs.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: hp6xx pata_platform support.Kristoffer Ericson1-30/+37
Drop the hd64461 I/O ops and wire up pata_platform for MMIO. Signed-off-by: Kristoffer Ericson <Kristoffer_e1@hotmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: se7780 PCI support.Nobuhiro Iwamatsu3-0/+157
Add support for the SH7780 PCIC on the Solution Engine 7780, missing from the previous board-support patch. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: SH7780 Solution Engine board support.Nobuhiro Iwamatsu9-8/+1578
This adds support for the SH7780-based Solution Engine reference board. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add a dummy SH-4 PCIC fixup.Paul Mundt2-9/+12
By default we don't have anything to fix up for the SH-4 PCIC, boards can overload this as necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Tidy up L-BOX area5 addresses.Paul Mundt1-1/+2
L-BOX can use the normal PA_AREA5_IO, there's no reason for it to reproduce it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add defconfig for se7722.Paul Mundt1-0/+945
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Kill off udivdi3 div64_32 wrapping.Paul Mundt3-20/+1
Previously we've been handling udivdi3 references and wrapping them in to div64_32() automatically. This doesn't get a lot of use, however, and as akpm noted in the recent thread on l-k: http://lkml.org/lkml/2007/2/27/241 we're better off simply ripping it out and going the do_div() route if there happen to be any places that need it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: bootmem tidying for discontig/sparsemem preparation.Paul Mundt3-174/+198
This reworks some of the node 0 bootmem initialization in preparation for discontigmem and sparsemem support. ARCH_POPULATES_NODE_MAP is switched to as a result of this. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add defconfig for se7712.Nobuhiro Iwamatsu1-0/+1088
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: MS7712SE01 board support.Nobuhiro Iwamatsu10-15/+95
Support the SH7712 (SH3-DSP) Solution Engine reference board. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: L-BOX RE2 support.Nobuhiro Iwamatsu10-1/+1504
This adds support for the L-BOX RE2 router. http://www.nttcom.co.jp/l-box/ L-BOX RE2 is a SH7751R-based router. It has CF, Cardbus, serial, and LAN x2. This is one of the very few SH boards that a general person can obtain now. The L-BOX shipped with a 2.4.28 kernel, this is a rewritten patch adding it to current git. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: landisk updates.kogiidena9-872/+377
Updates for the landisk board: - The push_switch framework was used. - landisk_pwb.c was divided into psw.c and gio.c. - pata_platform was supported in USL-5P. - irq.c was rewritten. - io.c was replaced with generic I/O routines. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: heartbeat double 0 fix.Takashi YOSHII1-10/+3
This implements stricter and more compliant knightrider strobing in the heartbeat handler. While there still seems to be some debate as to whether the double 0 is "more" correct or not, this updated version appears to have general consensus. Fixes a long-term "bug". Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: pata_platform pcmcia support for SolutionEngine boards.Nobuhiro Iwamatsu1-0/+26
This enables pata_platform support for the PCMCIA slot on the SolutionEngine. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add SH7785 Highlander board support (R7785RP).Paul Mundt22-120/+1786
This adds preliminary support for the SH7785-based Highlander board. Some of the Highlander support code is reordered so that most of it can be reused directly. This also plugs in missing SH7785 checks in the places that need it, as this is the first board to support the CPU. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: NR_IRQS consolidation.Paul Mundt1-2/+3
Each board sets the total number of IRQs that it's interested in via the machvec. Previously we cared about the off vs on-chip IRQ range, but any code relying on that is long dead. Set NR_IRQS to something sensible given the vector range, and allow boards to cap it if they really care. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: generic BUG() support.Paul Mundt3-71/+34
Wire up GENERIC_BUG for SH. This moves off of the special bug frame and on to the generic struct bug_entry. Roughly the same semantics are retained, and we can kill off some of the verbose BUG() reporting code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: speculative execution support for SH7780.Paul Mundt2-0/+29
SH7780 has a speculative execution mode where it can speculatively perform an instruction fetch for subroutine returns, this allows it to be enabled. There are some various pitfalls associated with this mode, so it's left as depending on CONFIG_EXPERIMENTAL and not enabled by default. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Rip out broken kgdb thread support.Paul Mundt2-386/+4
The kgdb thread support is woefully out of date (it predates the pidhash), and needs a complete rewrite before it's useful again. Just rip it out entirely. Updating the unified kgdb stub is a more worthwhile endeavour for anyone that happens to be interested in this, at present it's just limping along. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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