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* sh: Fix SH-X3 FPU exception handling.Paul Mundt2007-08-011-0/+5
| | | | | | | | | SH-X3 has the FPU exceptions on different vectors completely, patch in do_fpu_state_restore() to the proper vectors. Results in a much happier userspace. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix lockdep debugging oops on SH-3/4.Paul Mundt2007-08-011-2/+1
| | | | | | | | | | | | | | In the SH-3/4 TLB access violation path we were enabling IRQs before the call in to trace_hardirqs_on(), which ended up triggering: if (DEBUG_LOCKS_WARN_ON(!irqs_disabled())) return; in kernel/lockdep.c:2031. Fix this up by removing the early re-enable, we were already re-enabling IRQs post-trace_hardirqs_on() already, so the semantics are now as was initially intended. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix fs.h removal from mm.h regressions.Paul Mundt2007-07-314-1/+4
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix get_wchan() for SH kernels without framepointersDavid McCullough2007-07-261-2/+4
| | | | | | | | Do not follow the frame pointers (/proc/X/task/1/stat) unless we were compiled with them. Signed-off-by: David McCullough <david_mccullough@au.securecomputing.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: remove support for sh7300 and solution engine 7300Magnus Damm2007-07-266-63/+16
| | | | | | | | | This patch removes old dead code: - kill off sh7300 cpu support - get rid of broken solution engine 7300 board support Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Silence sq compile warning on sh4 nommu.Paul Mundt2007-07-261-6/+12
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: remove support for sh73180 and solution engine 73180Magnus Damm2007-07-255-133/+1
| | | | | | | | | This patch removes old dead code: - kill off sh73180 cpu support - get rid of broken solution engine 73180 board support Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: remove old broken pint codeMagnus Damm2007-07-252-221/+0
| | | | | | | | | The code in arch/sh/kernel/cpu/irq/pint.c doesn't compile, so let's get rid of it to make space for a future pint implementation on top of intc. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* clockevents: fix resume logicThomas Gleixner2007-07-221-0/+1
| | | | | | | | | | | | | | | | | | | | We need to make sure, that the clockevent devices are resumed, before the tick is resumed. The current resume logic does not guarantee this. Add CLOCK_EVT_MODE_RESUME and call the set mode functions of the clock event devices before resuming the tick / oneshot functionality. Fixup the existing users. Thanks to Nigel Cunningham for tracking down a long standing thinko, which affected the jinxed VAIO. [akpm@linux-foundation.org: xen build fix] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: intc - add support for SH7750 and its variantsMagnus Damm2007-07-201-64/+189
| | | | | | | | | | | | | This patch converts the cpu specific 7750 setup code to use the new intc controller. Many new vectors are added and multiple processor variants including 7091, 7750, 7750s, 7750r, 7751 and 7751r should all have the correct vectors hooked up. IRLM interrupts can be enabled using ipr_irq_enable_irlm() which now is marked as __init. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Move entry point code to .text.head.Paul Mundt2007-07-202-1/+3
| | | | | | | | | | | Follow Al Viro's m68k change from l-k: i.e. tell modpost that entry point code (that has to be outside of .init.text for external reasons) is OK to refer to .init.* Shuts up some section mismatch warnings from modpost. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Many symbol exports for nommu allmodconfig.Paul Mundt2007-07-203-2/+43
| | | | | | | | allmodconfig generates a lot of interesting code, a lot of the generated symbols we've never exported before, so this fixes those up. Verified with both GCC3 and GCC4 toolchains. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: cpufreq: Fix up the build for SH-2.Paul Mundt2007-07-201-5/+0
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'clkfwk'Paul Mundt2007-07-203-134/+111
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| * sh: cpufreq: clock framework support.Paul Mundt2007-07-201-134/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | This gets the SH cpufreq working again. We follow the changes in the AVR32 implementation for wrapping in to the clock framework. CPUs that wish to use this are required to define rate rounding primitives in order to satisfy clk_round_rate(). This works well enough for the common case, though we should look at unifying this driver across all of the platforms that implement clock framework support in one capacity or another. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Support rate rounding for SH7722 FRQCR clocks.Paul Mundt2007-07-201-0/+15
| | | | | | | | | | | | | | Now that the round_rate() op is supported, hook it up on SH7722 for the FRQCR (CPU, PCLK, etc.) clocks. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Implement clk_round_rate() in the clock framework.Paul Mundt2007-07-201-0/+16
| | | | | | | | | | | | | | | | This is an optional component of the clock framework. However, as we're going to be using this in the cpufreq drivers, add support for it to the framework. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Wire up fallocate() syscall.Paul Mundt2007-07-201-0/+1
|/ | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc - add support for 7780Magnus Damm2007-07-201-29/+190
| | | | | | | | | | | | | | | | This patch converts the cpu specific 7780 setup code to use the new intc controller. Many new vectors are added and also support for external interrupt sense configuration. So with this patch it is now possible to configure external interrupt pins as edge or level triggered using set_irq_type(). No external interrupts are registered by default. Use plat_irq_setup_pins() to select between IRQ or IRL mode. This patch also fixes the Alarm IRQ for the RTC. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc - improve group supportMagnus Damm2007-07-201-20/+73
| | | | | | | | | | | | | This patch improves intc group support, ie it makes it possible to group interrupts together and mask / unmask the entire group. This also works with priorities, so setting a priority for an entire group is also possible. This patch is needed to properly support certain processors such as the 7780. Fixes for NULL pointers in DECLARE_INTC_DESC() are also included. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: IPR/INTC2 IRQ setup consolidation.Magnus Damm2007-07-2012-24/+13
| | | | | | | | | | This patch unifies the cpu specific interrupt setup functions for interrupt controller blocks such as ipr, intc2 and intc. There is no point in having separate functions for each interrupt controller, so let's clean this up. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc - add support for 7722 processorMagnus Damm2007-07-201-29/+129
| | | | | | | | | | | This patch converts the cpu specific 7722 setup code to use the new intc controller. Many new vectors are added and also support for external interrupt sense configuration. So with this patch it is now possible to configure external interrupt pins as edge or level triggered using set_irq_type(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc - shared IPR and INTC2 controllerMagnus Damm2007-07-202-0/+353
| | | | | | | | | | | | | | | | | | | | | | | This is the second version of the shared interrupt controller patch for the sh architecture, fixing up handling of intc_reg_fns[]. The three main advantages with this controller over the existing ones are: - Both priority (ipr) and bitmap (intc2) registers are supported - External pin sense configuration is supported, ie edge vs level triggered - CPU/Board specific code maps 1:1 with datasheet for easy verification This controller can easily coexist with the current IPR and INTC2 controllers, but the idea is that CPUs/Boards should be moved over to this controller over time so we have a single code base to maintain. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix irq assignment for uarts on sh7722Magnus Damm2007-07-201-6/+18
| | | | | | | | | This patch contains two serial port related fixes for sh7722: - Make sure the irqs for the first serial port is correct - Add the second and third serial port to the platform data Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* mm: Remove slab destructors from kmem_cache_create().Paul Mundt2007-07-201-2/+1
| | | | | | | | | | | | | | Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* define new percpu interface for shared dataFenghua Yu2007-07-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | per cpu data section contains two types of data. One set which is exclusively accessed by the local cpu and the other set which is per cpu, but also shared by remote cpus. In the current kernel, these two sets are not clearely separated out. This can potentially cause the same data cacheline shared between the two sets of data, which will result in unnecessary bouncing of the cacheline between cpus. One way to fix the problem is to cacheline align the remotely accessed per cpu data, both at the beginning and at the end. Because of the padding at both ends, this will likely cause some memory wastage and also the interface to achieve this is not clean. This patch: Moves the remotely accessed per cpu data (which is currently marked as ____cacheline_aligned_in_smp) into a different section, where all the data elements are cacheline aligned. And as such, this differentiates the local only data and remotely accessed data cleanly. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Lameter <clameter@sgi.com> Cc: <linux-arch@vger.kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PTRACE_POKEDATA consolidationAlexey Dobriyan2007-07-171-4/+1
| | | | | | | | | | | | | | Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata() function. AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless return EPERM. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PTRACE_PEEKDATA consolidationAlexey Dobriyan2007-07-171-11/+2
| | | | | | | | | | | Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata() function. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Report that kernel is tainted if there was an OOPSPavel Emelianov2007-07-171-0/+1
| | | | | | | | | | | | | | If the kernel OOPSed or BUGed then it probably should be considered as tainted. Thus, all subsequent OOPSes and SysRq dumps will report the tainted kernel. This saves a lot of time explaining oddities in the calltraces. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Added parisc patch from Matthew Wilson -Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2007-07-1635-435/+863
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (68 commits) sh: sh-rtc support for SH7709. sh: Revert __xdiv64_32 size change. sh: Update r7785rp defconfig. sh: Export div symbols for GCC 4.2 and ST GCC. sh: fix race in parallel out-of-tree build sh: Kill off dead mach.c for hp6xx. sh: hd64461.h cleanup and added comments. sh: Update the alignment when 4K stacks are used. sh: Add a .bss.page_aligned section for 4K stacks. sh: Don't let SH-4A clobber SH-4 CFLAGS. sh: Add parport stub for SuperIO ports. sh: Drop -Wa,-dsp for DSP tuning. sh: Update dreamcast defconfig. fb: pvr2fb: A few more __devinit annotations for PCI. fb: pvr2fb: Fix up section mismatch warnings. sh: Select IPR-IRQ for SH7091. sh: Correct __xdiv64_32/div64_32 return value size. sh: Fix timer-tmu build for SH-3. sh: Add cpu and mach links to CLEAN_FILES. sh: Preliminary support for the SH-X3 CPU. ...
| * sh: sh-rtc support for SH7709.Kristoffer Ericson2007-07-161-0/+28
| | | | | | | | | | Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Export div symbols for GCC 4.2 and ST GCC.Paul Mundt2007-07-131-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | GCC 4.2 can emit integer variants of the FP division routines, so these need to be exported in order to keep the modules happy. 4.1.x versions of the ST compiler have these things backported, and so also generate these symbols (whereas vanilla gcc 4.1.x does not), so handle the __GNUC_STM_RELEASE__ case to accomodate updated versions of the 4.1.x toolchain. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Update the alignment when 4K stacks are used.Robert P. J. Day2007-07-121-6/+2
| | | | | | | | | | | | | | | | Use the newly added .bss.page_aligned section for aligning the stacks rather than THREAD_SIZE. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add a .bss.page_aligned section for 4K stacks.Paul Mundt2007-07-121-8/+8
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Preliminary support for the SH-X3 CPU.Paul Mundt2007-06-207-4/+254
| | | | | | | | | | | | This adds basic support for UP SH-X3. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * 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: rework ipr codeMagnus Damm2007-06-159-155/+229
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: rework intc2 codeMagnus Damm2007-06-154-34/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: 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 Mundt2007-06-113-19/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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: Kill off dead SH7604 support.Paul Mundt2007-06-082-10/+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: 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: URAM node support for SH7722.Paul Mundt2007-06-081-1/+8
| | | | | | | | | | | | | | | | 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: 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: 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: sparsemem support.Paul Mundt2007-06-081-2/+6
| | | | | | | | | | | | | | | | 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: 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>
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