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* lib: radix-tree: check accounting of existing slot replacement usersJohannes Weiner2016-12-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The bug in khugepaged fixed earlier in this series shows that radix tree slot replacement is fragile; and it will become more so when not only NULL<->!NULL transitions need to be caught but transitions from and to exceptional entries as well. We need checks. Re-implement radix_tree_replace_slot() on top of the sanity-checked __radix_tree_replace(). This requires existing callers to also pass the radix tree root, but it'll warn us when somebody replaces slots with contents that need proper accounting (transitions between NULL entries, real entries, exceptional entries) and where a replacement through the slot pointer would corrupt the radix tree node counts. Link: http://lkml.kernel.org/r/20161117193021.GB23430@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Suggested-by: Jan Kara <jack@suse.cz> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: Kill off set_irq_flags usageRob Herring2015-09-161-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Simon Horman <horms@verge.net.au> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sh@vger.kernel.org Cc: Russell King <linux@arm.linux.org.uk> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/1440889285-5637-4-git-send-email-robh@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-162-3/+3
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* sh/intc: Prepare irq flow handlers for irq argument removalThomas Gleixner2015-07-291-1/+2
| | | | | | | | | | | | | | | | | | The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Link: http://lkml.kernel.org/r/20150713151626.872605327@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sh/intc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu2015-07-292-7/+9
| | | | | | | | | | | | | | | Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Also replace generic_handle_irq with generic_handle_irq_desc() to avoid looking up irq_desc again. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.792845830@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sh/irq: Use access helper irq_data_get_affinity_mask()Thomas Gleixner2015-07-291-3/+3
| | | | | | | | | | | This is a preparatory patch for moving irq_data struct members. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.713278346@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sh/irq: Use irq accessor functions instead of open coded accessJiang Liu2015-07-291-5/+7
| | | | | | | | | | | This is a preparatory patch for refactoring the internals if irq_data. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.616384365@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sh/intc: Fix race in installing chained IRQ handlerThomas Gleixner2015-06-251-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); | -irq_set_chained_handler(E1, E3); ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); ... | -irq_set_chained_handler(E1, E3); ... ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: linux-sh@vger.kernel.org
* sh/intc: Fix potential race in installing chained IRQ handlerThomas Gleixner2015-06-251-1/+2
| | | | | | | | | | | | | | | Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by moving the call to irq_set_chained_handler() after the function which sets up the handler data. Found by code inspection. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: linux-sh@vger.kernel.org
* sh: intc: Confine SH_INTC to platforms that need itGeert Uytterhoeven2014-08-221-1/+5
| | | | | | | | | | | | | | | Currently the sh-intc driver is compiled on all SuperH and non-multiplatform SH-Mobile platforms, while it's only used on a limited number of platforms: - SuperH: SH2(A), SH3(A), SH4(A)(L) (all but SH5) - ARM: sh7372, sh73a0 Drop the "default y" on SH_INTC, make all CPU platforms that use it select it, and protect all sub-options by "if SH_INTC" to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Merge tag 'renesas-sh-drivers-for-v3.16' of ↵Linus Torvalds2014-06-061-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next Pull SH driver update from Simon Horman: - PM Runtime enhancements targeted for use with ARM-based Renesas R-Car Gen2 SoCs - Restrict INTC_USERIMASK to SH4A as it is only used there * tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: drivers: sh: Enable PM runtime for new R-Car Gen2 SoCs drivers: sh: pm_runtime implementation needs to suspend and resume devices drivers: sh: Restrict INTC_USERIMASK to SH4A drivers: sh: pm_runtime does not need idle callback
| * drivers: sh: Restrict INTC_USERIMASK to SH4AGeert Uytterhoeven2014-05-261-1/+1
| | | | | | | | | | | | | | | | | | register_intc_userimask() is called from sh4a code only. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [r8a7779 legacy] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | sh: intc: Remove pointless irq_reserve_irqs() invocationThomas Gleixner2014-05-161-6/+0
|/ | | | | | | | | | | | | | The preceding call to irq_create_identity_mapping() marks the interrupt as allocated already. Remove the leftover. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Grant Likely <grant.likely@linaro.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Acked-by: Simon Horman <horms@verge.net.au> Cc: linux-sh@vger.kernel.org Link: http://lkml.kernel.org/r/20140507154339.189047829@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* sh: intc: Enable driver compilation with COMPILE_TESTLaurent Pinchart2014-02-181-1/+1
| | | | | | | This helps increasing build testing coverage. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* sh: Fix up more fallout from pointless ARM __iomem churn.Paul Mundt2012-10-152-20/+29
| | | | | | | | | It was already pointed out how to fix these cases before the offending patches were merged, but unsurprisingly, that didn't happen. As this change is entirely superfluous to begin with, simply shut things up by casting everything away. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Fix up multi-evt irq association.Paul Mundt2012-08-201-1/+1
| | | | | | | In the multi-evt case we were accidentally associating the parent IRQ, fix this up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Handle domain association for sparseirq pre-allocated vectors.Paul Mundt2012-08-091-4/+23
| | | | | | | | | | | | | | | | | | Presently it's assumed that the irqdomain code handles the irq_desc allocation for us, but this isn't necessarily the case when we've pre-allocated IRQs via sparseirq. Previously we had a -EEXIST check in the code that attempted to trap these cases and simply update them in-place, but this behaviour was inadvertently lost in the transition to irqdomains. This simply restores the previous behaviour, first attempting to let the irqdomain core fetch the allocation for us, and falling back to an in-place domain association in the extant IRQ case. Fixes up regressions on platforms that pre-allocate legacy IRQs (specifically ARM-based SH-Mobile platforms, as SH stopped pre-allocating vectors some time ago). Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: initial irqdomain support.Paul Mundt2012-08-015-5/+85
| | | | | | | Trivial support for irq domains, using either a linear map or radix tree depending on the vector layout. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Allocate subgroup virq backing desc directly.Paul Mundt2012-06-131-1/+3
| | | | | | | | | This switches to using irq_alloc_desc() directly for subgroup IRQs. We still need to call activate_irq() on these in order to make them requestable, at least up until these get moved in to their own irq domain.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Kill off deprecated dynamic IRQ API.Paul Mundt2012-05-242-66/+1
| | | | | | | Now that all of the users have been converted away, kill off the remnants of the old API. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds2012-03-304-35/+27
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SuperH updates from Paul Mundt. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (25 commits) sh: Support I/O space swapping where needed. sh: use set_current_blocked() and block_sigmask() sh: no need to reset handler if SA_ONESHOT sh: intc: Fix up section mismatch for intc_ack_data sh: select ARCH_DISCARD_MEMBLOCK. sh: Consolidate duplicate _32/_64 unistd definitions. sh: ecovec: switch SDHI controllers to card polling sh: Avoid exporting unimplemented syscalls. sh: add platform_device for RSPI in setup-sh7757 SH: pci-sh7780: enable big-endian operation. serial: sh-sci: fix a race of DMA submit_tx on transfer sh: dma: Collect up CHCR of SH7763, SH7764, SH7780 and SH7785 sh: dma: Collect up CHCR of SH7723 and SH7730 sh/next: Fix build fail by asm/system.h in asm/bitops.h arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible sh: cpufreq: Wire up scaling_available_freqs support. sh: cpufreq: notify about rate rounding fallback. sh: cpufreq: Support CPU clock frequency table. sh: cpufreq: struct device lookup from CPU topology. sh: cpufreq: percpu struct clk accounting. ...
| * sh: intc: Fix up section mismatch for intc_ack_dataPaul Mundt2012-03-281-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | intc_ack_data is flagged as __init when it shouldn't be, causing section mismatches in non-init paths like intc_set_ack_handle(): WARNING: drivers/built-in.o(.text+0x5d760): Section mismatch in reference from the function intc_set_ack_handle() to the function .init.text:intc_ack_data() The function intc_set_ack_handle() references the function __init intc_ack_data(). This is often because intc_set_ack_handle lacks a __init annotation or the annotation of intc_ack_data is wrong. Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: intc: optimize intc IRQ lookupPaul Mundt2012-01-243-22/+22
| | | | | | | | | | | | | | | | This ensures that the sense/prio lists are sorted at registration time, enabling us to use a simple binary search for an optimized lookup (something that had been on the TODO for some time). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: intc: Use IRQ_SET_MASK_OK_NOCOPY for intc_set_affinity.Paul Mundt2012-01-241-1/+1
| | | | | | | | | | | | | | intc_set_affinity() updates the cpumask in place, so there's no need for the upper layer to do this itself. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: intc: Kill off superfluous irq_shutdown hooking.Paul Mundt2012-01-241-1/+0
| | | | | | | | | | | | This already gets handled via disable, as per the notes in linux/irq.h. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: intc: Prefer IRQCHIP_SKIP_SET_WAKE over a dummy set_wake callback.Paul Mundt2012-01-241-6/+1
| | | | | | | | | | | | | | | | It's possible to use IRQCHIP_SKIP_SET_WAKE to get the behaviour that we're after, without having to bother with a dummy ->set_wake() callback for the IRQ chip. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: intc: Make global intc controller counter static.Paul Mundt2012-01-242-2/+1
| | | | | | | | | | | | No need to expose this globally since it's only used for core accounting. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: intc: remove dependency on NR_IRQSRob Herring2012-01-264-4/+4
|/ | | | | | | | SH intc has a compile time dependency on NR_IRQS. Make this dependency a local define so that shmobile (and ARM in general) can have run-time NR_IRQS setting. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* Merge branch 'pm-for-linus' of ↵Linus Torvalds2012-01-082-0/+9
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
| * PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resumeRafael J. Wysocki2011-12-252-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the SH7372's INTCS in included into syscore suspend/resume, which causes the chip to be accessed when PM domains have been turned off during system suspend, the A4R domain containing the INTCS has to stay on during system sleep, which is suboptimal from the power consumption point of view. For this reason, add a new INTC flag, skip_syscore_suspend, to mark the INTCS for intc_suspend() and intc_resume(), so that they don't touch it. This allows the A4R domain to be turned off during system suspend and the INTCS state is resrored during system resume by the A4R's "power on" code. Suggested-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
* | sh: intc - convert sysdev_class to a regular subsystemKay Sievers2011-12-223-25/+26
|/ | | | | | | | | | | After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds2011-11-073-0/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
| * drivers/sh: Add export.h for EXPORT_SYMBOL to intc/virq.cPaul Gortmaker2011-11-011-0/+1
| | | | | | | | | | | | | | This is exporting symbols and will fail to build once we remove the implicit presence of module.h Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * sh: Add export.h to arch/sh specific files as required.Paul Gortmaker2011-11-011-0/+1
| | | | | | | | Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * sh: Add module.h to arch/sh specific files as required.Paul Gortmaker2011-11-011-0/+1
| | | | | | | | Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * sh: fix implicit use of stat.h in arch/sh specific filesPaul Gortmaker2011-11-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | To fix: arch/sh/drivers/dma/dma-sysfs.c:45:8: error: 'S_IRUGO' undeclared here (not in a function) arch/sh/drivers/dma/dma-sysfs.c:75:8: error: 'S_IWUSR' undeclared here (not in a function) make[4]: *** [arch/sh/drivers/dma/dma-sysfs.o] Error 1 drivers/sh/intc/core.c:449: error: 'S_IRUGO' undeclared here (not in a function) make[5]: *** [drivers/sh/intc/core.o] Error 1 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | sh: intc: Allow triggering on both edges for ARM SoCsMagnus Damm2011-11-041-1/+1
| | | | | | | | | | | | | | | | | | Enable IRQ_TYPE_EDGE_BOTH on all R/SH-Mobile ARM SoCs. This hardware feature is supported by sh7367, sh7377, sh7372 and sh73a0. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: userimask.c needs linux/stat.hNobuhiro Iwamatsu2011-10-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This fix the problem that S_IRUSR and S_IWUSR are not solved in userimask.c. ----- CC drivers/usb/host/r8a66597-hcd.o drivers/sh/intc/userimask.c:57: error: ‘S_IRUSR’ undeclared here (not in a function) drivers/sh/intc/userimask.c:57: error: ‘S_IWUSR’ undeclared here (not in a function) CC drivers/watchdog/shwdt.o ----- Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: intc: Add IRQ trigger bit field checkMagnus Damm2011-10-281-2/+7
|/ | | | | | | | | | R-Mobile SoCs such as sh73a0 include PINT blocks in INTC that come with 2-bit IRQ trigger support. Add code to make sure the bit width is checked so 4-bit only modes like for instance EDGE_BOTH will fail for PINT. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: enable both edges GPIO interrupts on sh7372Magnus Damm2011-07-211-0/+3
| | | | | | | | | IRQ-capable GPIOs on sh7372 can be configured to produce interrupts on both edges. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Set virtual IRQs as nothread.Paul Mundt2011-04-271-0/+5
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix irq cleanup falloutThomas Gleixner2011-03-301-2/+2
| | | | | | | | | I missed that coccinelle does not fix up header files by default. Reported-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: <lethal@linux-sh.org>
* sh: Convert to new function namesThomas Gleixner2011-03-292-13/+13
| | | | | | Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* sh: Use the proper accessor functionsThomas Gleixner2011-03-291-7/+2
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* sh: Use struct syscore_ops instead of sysdevsRafael J. Wysocki2011-03-232-49/+47
| | | | | | | | | | | | | | | | | | | Convert the SuperH clocks framework and shared interrupt handling code to using struct syscore_ops instead of a sysdev classes and sysdevs for power managment. This reduces the code size significantly and simplifies it. The optimizations causing things not to be restored after creating a hibernation image are removed, but they might lead to undesirable effects during resume from hibernation (e.g. the clocks would be left as the boot kernel set them, which might be not the same way as the hibernated kernel had seen them before the hibernation). This also is necessary for removing sysdevs from the kernel entirely in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: update INTC to clear IRQ sense valid flagMagnus Damm2011-01-191-2/+4
| | | | | | | | | Clear the valid flag is in the INTC code. Without this fix bit 7 of the sense register is mistakenly set. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Initialize radix tree gfp mask explicitly.Paul Mundt2010-12-241-0/+1
| | | | | | | | | | | Presently the root node is initialized by way of kzalloc on the parent data structure, which by chance happens to do the bulk of what an explicit initialization does with GFP_NOWAIT semantics. This however is more by luck than by design, and as we ideally want to permit radix node allocations access to the emergency pools anyways, add in the proper initializer with the desired mask. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Fix up build failure introduced by radix tree changes.Paul Mundt2010-11-151-1/+1
| | | | | | | | | The radix tree retry logic got a bit of an overhaul and subsequently broke the virtual IRQ subgroup build. Simply switch over to radix_tree_deref_retry() as per the filemap changes, which the virq lookup logic was modelled after in the first place. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Update for single IRQ reservation helper.Paul Mundt2010-11-012-2/+2
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: switch irq_desc iteration to new active IRQ iterator.Paul Mundt2010-10-281-8/+2
| | | | | | | | There's no need to iterative over every single irq_desc when we can already work out which IRQs have a backing descriptor via the shiny new for_each_active_irq(). Switch to that instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:58:04 +0100