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| | * sh: Hook up hard_smp_processor_id() for INTC2 block.Paul Mundt2007-06-201-2/+7
| | | | | | | | | | | | | | | | | | | | | 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>
| * | sh: Update se7722 defconfig.Paul Mundt2007-06-201-191/+96
| | | | | | | | | | | | | | | | | | Hook up the multi-node stuff for the SE7722. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fix up cf-enabler dependency for SE boards.Paul Mundt2007-06-201-44/+43
| |/ | | | | | | | | | | | | | | This was using CONFIG_SH_SOLUTION_ENGINE, where we really wanted CONFIG_SOLUTION_ENGINE. While we're at it, move the whole CF enabler mess somewhere better suited. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Check oops_may_print() in unhandled fault.Paul Mundt2007-06-181-16/+29
| | | | | | | | | | | | | | Only print out pgd/pte data in the oops path if oops_may_print() holds true. Follows the i386 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Update SH-2/SH-2A defconfigs.Paul Mundt2007-06-152-328/+159
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: rework ipr codeMagnus Damm2007-06-1516-286/+404
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Only support PMB for SH-X cores.Paul Mundt2007-06-151-1/+1
| | | | | | | | | | | | | | We don't have a PMB for SH-X2 or later, so only enable it for the few CPUs that support it. Fixes up the boot for SH4AL-DSP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: rework intc2 codeMagnus Damm2007-06-155-65/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Fix up the math-emu build.Paul Mundt2007-06-111-6/+12
| | | | | | | | | | | | | | math-emu wasn't converted for the trap_no/errno_code changes, get it building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off broken dma page ops.Paul Mundt2007-06-113-115/+1
| | | | | | | | | | | | | | | | There's no point in keeping these around, they've been broken for some time, and the dmaenging/async_tx framework provides a far more reasonable interface. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup misaligned data for sh2 lockdep.Paul Mundt2007-06-111-0/+1
| | | | | | | | | | | | | | lockdep/irqflags tracing on SH-2 ends up with a misaligned branch, fix it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Tidy up dependencies for SH-2 build.Paul Mundt2007-06-119-47/+44
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Provide a defconfig for R7780MP.Yoshihiro Shimoda2007-06-111-0/+1223
| | | | | | | | | | Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off dead SH7604 support.Paul Mundt2007-06-0810-266/+2
| | | | | | | | | | | | | | | | 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>
| * sh: memory hot-add for sparsemem users support.Paul Mundt2007-06-082-0/+50
| | | | | | | | | | | | | | This enables simple hotplug support for sparsemem users. Presently this only permits memory being added in to node 0 on ZONE_NORMAL. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up cpu to node mapping in sysfs.Paul Mundt2007-06-081-0/+21
| | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Fix the SH7722 flatmem build.Paul Mundt2007-06-081-0/+1
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Make NUMA depend on sparsemem.Paul Mundt2007-06-081-1/+1
| | | | | | | | | | | | | | The only platforms that are supporting NUMA are doing so via sparsemem, so update the dependency. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: URAM node support for SH7722.Paul Mundt2007-06-082-1/+10
| | | | | | | | | | | | | | | | 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>
| * sh: Support for multiple nodes.Paul Mundt2007-06-083-0/+104
| | | | | | | | | | | | | | | | | | This adds basic support for multiple nodes on SH machines. This is primarily useful for boards with many different memory blocks that are otherwise unused (SH7722/SH7785 URAM and so forth). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Use asm/sections.h for linker section symbols.Paul Mundt2007-06-081-7/+4
| | | | | | | | | | | | Kill off a bunch of externs, and use sections.h instead.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up max_zone_pfns[] with multiple nodes.Paul Mundt2007-06-081-12/+17
| | | | | | | | | | | | | | | | Currently using multiple nodes tramples the ZONE_NORMAL max low pfn, tidy up the logic a bit to get it all working as expected. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Wire up mempolicy syscalls.Paul Mundt2007-06-081-3/+3
| | | | | | | | | | | | Wire up mbind and get/set_mempolicy() in their reserved places. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Tidy compiler warnings for SH-2A build.Paul Mundt2007-06-082-1/+1
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Wrap CPU tuning through cc-option.Paul Mundt2007-06-081-5/+7
| | | | | | | | | | | | | | | | | | Some compilers don't support the explicit CPU tuning, while binutils is still able to handle the special subtype-specific opcodes. Make the CFLAG optional, falling back on the compiler default if nothing better exists. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Enable IPR-IRQ for SH7206.Paul Mundt2007-06-081-0/+1
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Mark sparsemem regions present earlier.Paul Mundt2007-06-081-4/+5
| | | | | | | | | | | | | | | | | | 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>
| * sh: Register multiple nodes in topology_init().Paul Mundt2007-06-081-0/+7
| | | | | | | | | | | | If we have multiple nodes, register these at topology_init() time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Allow for bootmem debug support.Paul Mundt2007-06-081-0/+4
| | | | | | | | | | | | Handy for debugging bootmem troubles. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: sparsemem support.Paul Mundt2007-06-083-25/+22
| | | | | | | | | | | | | | | | 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>
| * sh: Add L-BOX RE2 to mach-types.Nobuhiro Iwamatsu2007-06-081-0/+1
| | | | | | | | | | Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Align .machvec.init section on a 4-byte boundary.Takashi YOSHII2007-06-081-0/+1
| | | | | | | | | | | | | | | | .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>
| * sh: Fix SH-4 CPU selects.Paul Mundt2007-06-083-7/+7
| | | | | | | | | | | | | | | | | | 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>
| * sh: Rip out special unknown machvec.Paul Mundt2007-06-087-48/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Kill off machvec aliases.Paul Mundt2007-06-0830-71/+66
| | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Get multiple boards in one image working again.Paul Mundt2007-06-081-38/+50
| | | | | | | | | | | | | | | | | | This tidies up the build rules and permits multiple boards to be linked in to the same kernel. The earlier Kconfig work ensures that the CPU configuration is consistent across the boards, as this is the only thing that we can't do dynamically. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup cmdline handling from machvec changes.Paul Mundt2007-06-081-6/+7
| | | | | | | | | | | | | | 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>
| * sh: Rework CPU/board dependencies.Paul Mundt2007-06-083-158/+165
| | | | | | | | | | | | | | | | | | This was a big mess, rework the logic a bit so that we constrain to a particular subtype and figure out the board support based on that. This makes building subtype specific kernels supporting multiple boards possible again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Shut up SH2-DSP compile warnings.Paul Mundt2007-06-082-2/+2
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup machvec support.Paul Mundt2007-06-084-150/+122
| | | | | | | | | | | | | | | | 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>
| * sh: __user annotations for __get/__put_user().Paul Mundt2007-06-084-14/+12
| | | | | | | | | | | | | | | | 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>
| * sh: Split out CPU topology initialization.Paul Mundt2007-06-083-19/+26
| | | | | | | | | | | | | | | | | | | | 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>
* | generic bug: use show_regs() instead of dump_stack()Heiko Carstens2007-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current generic bug implementation has a call to dump_stack() in case a WARN_ON(whatever) gets hit. Since report_bug(), which calls dump_stack(), gets called from an exception handler we can do better: just pass the pt_regs structure to report_bug() and pass it to show_regs() in case of a warning. This will give more debug informations like register contents, etc... In addition this avoids some pointless lines that dump_stack() emits, since it includes a stack backtrace of the exception handler which is of no interest in case of a warning. E.g. on s390 the following lines are currently always present in a stack backtrace if dump_stack() gets called from report_bug(): [<000000000001517a>] show_trace+0x92/0xe8) [<0000000000015270>] show_stack+0xa0/0xd0 [<00000000000152ce>] dump_stack+0x2e/0x3c [<0000000000195450>] report_bug+0x98/0xf8 [<0000000000016cc8>] illegal_op+0x1fc/0x21c [<00000000000227d6>] sysc_return+0x0/0x10 Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Andi Kleen <ak@suse.de> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: 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>
* | sh: Handle -ERESTART_RESTARTBLOCK for restartable syscalls.Paul Mundt2007-06-191-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Mundt2007-06-181-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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 Kojima2007-06-181-2/+4
|/ | | | | | | | | | 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 Mundt2007-06-041-2/+2
| | | | | | 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 Mundt2007-06-041-0/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: voyagergx: Fix build warnings.Paul Mundt2007-06-041-6/+7
| | | | | | | 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 Mundt2007-06-041-1/+1
| | | | | | | 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>
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