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2007-06-20sh: Preliminary support for the SH-X3 CPU.Paul Mundt
This adds basic support for UP SH-X3. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-20sh: Hook up hard_smp_processor_id() for INTC2 block.Paul Mundt
We need to know the CPU ID in order to calculate the mask and ack registers effectively. Stub this in for UP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-15sh: rework ipr codeMagnus Damm
This patch reworks the ipr code by grouping the offset array together with the ipr_data structure in a new data structure called ipr_desc. This new structure also contains the name of the controller in struct irq_chip. The idea behind putting struct irq_chip in there is that we can use offsetof() to locate the base addresses in the irq_chip callbacks. This strategy has much in common with the recently merged intc2 code. One logic change has been made - the original ipr code enabled the interrupts by default but with this patch they are all disabled by default. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-15sh: rework intc2 codeMagnus Damm
The shared intc2 code currently contains cpu-specific #ifdefs. This is a tad unclean and it prevents us from using the shared code to drive board-specific irqs on the se7780 board. This patch reworks the intc2 code by moving the base addresses of the intc2 registers into struct intc2_desc. This new structure also contains the name of the controller in struct irq_chip. The idea behind putting struct irq_chip in there is that we can use offsetof() to locate the base addresses in the irq_chip callbacks. One logic change has been made - the original shared intc2 code enabled the interrupts by default but with this patch they are all disabled by default. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-11sh: Fixup misaligned data for sh2 lockdep.Paul Mundt
lockdep/irqflags tracing on SH-2 ends up with a misaligned branch, fix it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-11sh: Tidy up dependencies for SH-2 build.Paul Mundt
SH-2 can presently get in to some pretty bogus states, so we tidy up the dependencies a bit and get it all building again. This gets us a bit closer to a functional allyesconfig and allmodconfig, though there are still a few things to fix up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Kill off dead SH7604 support.Paul Mundt
This was added during 2.5.x, but was never moved along. This can easily be resurrected if someone has one they wish to work with, but it's not worth keeping around in its current form. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fix up cpu to node mapping in sysfs.Paul Mundt
Currently cpu_to_node() is always 0 in the UP case, though we do want to have the CPU association linked in under sysfs even in the cases where we're only on a single CPU. Fix this up, so we have the cpu0 link on all of the available nodes that don't already have a CPU link of their own. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fix the SH7722 flatmem build.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: URAM node support for SH7722.Paul Mundt
This adds the URAM block on SH7722 as a separate node. Sparsemem is required for this, or it can simply be disabled by explicitly selecting a flatmem model. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Wire up mempolicy syscalls.Paul Mundt
Wire up mbind and get/set_mempolicy() in their reserved places. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Tidy compiler warnings for SH-2A build.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Mark sparsemem regions present earlier.Paul Mundt
We have to call in to sparse_memory_present_with_active_regions() earlier in order for sparsemem to be happy. This was being called too late, and was causing troubles with the platforms that needed to enable sparsemem. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Register multiple nodes in topology_init().Paul Mundt
If we have multiple nodes, register these at topology_init() time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: sparsemem support.Paul Mundt
This implements basic sparsemem support for SH. Presently this only uses static sparsemem, and we still permit explicit selection of flatmem. Those boards that want sparsemem can select it as usual. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Align .machvec.init section on a 4-byte boundary.Takashi YOSHII
.machvec.init can be misaligned with the recent machvec changes, forcibly align it on the boundary that it expects, as before. Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fix SH-4 CPU selects.Paul Mundt
Now that select no longer works for selecting the "closest" CPU, we have to explicitly reference the precise sub-type in the few places where it actually matters (presently only setup code and some legacy sh-sci cruft). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Rip out special unknown machvec.Paul Mundt
This kills off the BareCPU board as a "special" machvec, rather, we leave this as a default for when no other vector is available, or when we want to use it in combination with other vectors for testing with generic ops. As sh_mv is copied out anyways (or overloaded when an alternate vector is explicitly selected), this doesn't consume any additional memory. The generic machvec can be forcibly selected with sh_mv=generic, or by not having any other boards enabled. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Kill off machvec aliases.Paul Mundt
We now throw all of the machvecs in to .machvec.init and either select one on the command line, or copy out the first (and usually only) one to sh_mv. The rest are freed as usual. This gets rid of all of the silly sh_mv aliasing and makes the selection explicit rather than link-order dependent. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fixup cmdline handling from machvec changes.Paul Mundt
The command line wasn't being saved off properly after the machvec changes went in, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Shut up SH2-DSP compile warnings.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fixup machvec support.Paul Mundt
This fixes up much of the machvec handling, allowing for it to be overloaded on boot. Making practical use of this still requires some Kconfig munging, however. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: __user annotations for __get/__put_user().Paul Mundt
This adds in some more __user annotations. These weren't being handled properly in some of the __get_user and __put_user paths, so tidy those up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Split out CPU topology initialization.Paul Mundt
Split out the CPU topology initialization to a separate file, and switch it to a percpu type, rather than an NR_CPUS array. At the same time, switch to only registering present CPUs, rather than using the possible CPU map. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04sh: Fix SH4-202 clock fwk set_rate() mismatch.Paul Mundt
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>
2007-06-04sh: Fix in_nmi symbol build error.Paul Mundt
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>
2007-05-31sh: trivial build cleanups.Evgeniy Polyakov
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>
2007-05-31sh: Fix vsyscall build failure.Manuel Lauss
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>
2007-05-31sh: Fix pcrel too far for in_nmi label.Takashi YOSHII
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>
2007-05-23sh: section mismatch fixes for system timer.Paul Mundt
Fix up a couple of section mismatch warnings regarding sys_timer. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-22Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* 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().
2007-05-21sh: Fix clock multiplier on SH7722.dmitry pervushin
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>
2007-05-21sh: Wire up kdump crash kernel exec in die().Paul Mundt
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>
2007-05-21sh: sr.bl toggling around idle sleep.Paul Mundt
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>
2007-05-21sh: Fix up various compile warnings for SE boards.Paul Mundt
- 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>
2007-05-21sh: Wire up signalfd/timerfd/eventfd syscalls.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21spelling fixes: arch/sh/Simon Arlott
Spelling fixes in arch/sh/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-19all-archs: consolidate .data section definition in asm-genericSam Ravnborg
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>
2007-05-19all-archs: consolidate .text section definition in asm-genericSam Ravnborg
Move definition of .text section to asm-generic. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-09Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* 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 Mundt
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: clockevent/clocksource/hrtimers/nohz TMU support.Paul Mundt
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-König
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: Convert to common die chain.Paul Mundt
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 Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09sh: Add 32-bit opcode feature CPU flag.Paul Mundt
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 Mundt
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 Mundt
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 Mundt
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 Mundt
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>