aboutsummaryrefslogtreecommitdiff
path: root/drivers/sh/intc
AgeCommit message (Collapse)AuthorFilesLines
2016-12-12lib: radix-tree: check accounting of existing slot replacement usersJohannes Weiner1-1/+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/[email protected] Signed-off-by: Johannes Weiner <[email protected]> Suggested-by: Jan Kara <[email protected]> Reviewed-by: Jan Kara <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Matthew Wilcox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-09-16sh: Kill off set_irq_flags usageRob Herring1-9/+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 <[email protected]> Acked-by: Simon Horman <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Russell King <[email protected]> Cc: Magnus Damm <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2015-09-16genirq: Remove irq argument from irq flow handlersThomas Gleixner2-3/+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 <[email protected]> Cc: Julia Lawall <[email protected]> Cc: Jiang Liu <[email protected]>
2015-07-29sh/intc: Prepare irq flow handlers for irq argument removalThomas Gleixner1-1/+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 <[email protected]> Cc: Jiang Liu <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Cc: Julia Lawall <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2015-07-29sh/intc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu2-7/+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 <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2015-07-29sh/irq: Use access helper irq_data_get_affinity_mask()Thomas Gleixner1-3/+3
This is a preparatory patch for moving irq_data struct members. Signed-off-by: Jiang Liu <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2015-07-29sh/irq: Use irq accessor functions instead of open coded accessJiang Liu1-5/+7
This is a preparatory patch for refactoring the internals if irq_data. Signed-off-by: Jiang Liu <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2015-06-25sh/intc: Fix race in installing chained IRQ handlerThomas Gleixner1-2/+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 <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Julia Lawall <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Cc: [email protected]
2015-06-25sh/intc: Fix potential race in installing chained IRQ handlerThomas Gleixner1-1/+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 <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Simon Horman <[email protected]> Cc: Magnus Damm <[email protected]> Cc: [email protected]
2014-08-22sh: intc: Confine SH_INTC to platforms that need itGeert Uytterhoeven1-1/+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 <[email protected]> Acked-by: Magnus Damm <[email protected]> Signed-off-by: Simon Horman <[email protected]>
2014-06-06Merge tag 'renesas-sh-drivers-for-v3.16' of ↵Linus Torvalds1-1/+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
2014-05-26drivers: sh: Restrict INTC_USERIMASK to SH4AGeert Uytterhoeven1-1/+1
register_intc_userimask() is called from sh4a code only. Signed-off-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Tested-by: Laurent Pinchart <[email protected]> [r8a7779 legacy] Signed-off-by: Simon Horman <[email protected]>
2014-05-16sh: intc: Remove pointless irq_reserve_irqs() invocationThomas Gleixner1-6/+0
The preceding call to irq_create_identity_mapping() marks the interrupt as allocated already. Remove the leftover. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Grant Likely <[email protected]> Cc: Tony Luck <[email protected]> Cc: Peter Zijlstra <[email protected]> Acked-by: Simon Horman <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2014-02-18sh: intc: Enable driver compilation with COMPILE_TESTLaurent Pinchart1-1/+1
This helps increasing build testing coverage. Signed-off-by: Laurent Pinchart <[email protected]> Signed-off-by: Simon Horman <[email protected]>
2012-10-15sh: Fix up more fallout from pointless ARM __iomem churn.Paul Mundt2-20/+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 <[email protected]>
2012-08-20sh: intc: Fix up multi-evt irq association.Paul Mundt1-1/+1
In the multi-evt case we were accidentally associating the parent IRQ, fix this up. Signed-off-by: Paul Mundt <[email protected]>
2012-08-09sh: intc: Handle domain association for sparseirq pre-allocated vectors.Paul Mundt1-4/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2012-08-01sh: intc: initial irqdomain support.Paul Mundt5-5/+85
Trivial support for irq domains, using either a linear map or radix tree depending on the vector layout. Signed-off-by: Paul Mundt <[email protected]>
2012-06-13sh: intc: Allocate subgroup virq backing desc directly.Paul Mundt1-1/+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 <[email protected]>
2012-05-24sh: intc: Kill off deprecated dynamic IRQ API.Paul Mundt2-66/+1
Now that all of the users have been converted away, kill off the remnants of the old API. Signed-off-by: Paul Mundt <[email protected]>
2012-03-30Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds4-35/+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. ...
2012-03-29sh: intc: Fix up section mismatch for intc_ack_dataPaul Mundt1-3/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2012-01-25sh: intc: remove dependency on NR_IRQSRob Herring4-4/+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 <[email protected]>
2012-01-24sh: intc: optimize intc IRQ lookupPaul Mundt3-22/+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 <[email protected]>
2012-01-24sh: intc: Use IRQ_SET_MASK_OK_NOCOPY for intc_set_affinity.Paul Mundt1-1/+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 <[email protected]>
2012-01-24sh: intc: Kill off superfluous irq_shutdown hooking.Paul Mundt1-1/+0
This already gets handled via disable, as per the notes in linux/irq.h. Signed-off-by: Paul Mundt <[email protected]>
2012-01-24sh: intc: Prefer IRQCHIP_SKIP_SET_WAKE over a dummy set_wake callback.Paul Mundt1-6/+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 <[email protected]>
2012-01-24sh: intc: Make global intc controller counter static.Paul Mundt2-2/+1
No need to expose this globally since it's only used for core accounting. Signed-off-by: Paul Mundt <[email protected]>
2012-01-08Merge branch 'pm-for-linus' of ↵Linus Torvalds2-0/+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
2011-12-25PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resumeRafael J. Wysocki2-0/+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 <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Magnus Damm <[email protected]>
2011-12-21sh: intc - convert sysdev_class to a regular subsystemKay Sievers3-25/+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 <[email protected]> Cc: Magnus Damm <[email protected]> Cc: Paul Gortmaker <[email protected]> Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds3-0/+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
2011-11-05sh: intc: Allow triggering on both edges for ARM SoCsMagnus Damm1-1/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-10-31drivers/sh: Add export.h for EXPORT_SYMBOL to intc/virq.cPaul Gortmaker1-0/+1
This is exporting symbols and will fail to build once we remove the implicit presence of module.h Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31sh: Add export.h to arch/sh specific files as required.Paul Gortmaker1-0/+1
Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31sh: Add module.h to arch/sh specific files as required.Paul Gortmaker1-0/+1
Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31sh: fix implicit use of stat.h in arch/sh specific filesPaul Gortmaker1-0/+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 <[email protected]>
2011-10-28sh: userimask.c needs linux/stat.hNobuhiro Iwamatsu1-0/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-10-28sh: intc: Add IRQ trigger bit field checkMagnus Damm1-2/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-07-21sh: intc: enable both edges GPIO interrupts on sh7372Magnus Damm1-0/+3
IRQ-capable GPIOs on sh7372 can be configured to produce interrupts on both edges. Signed-off-by: Guennadi Liakhovetski <[email protected]> Acked-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-04-27sh: intc: Set virtual IRQs as nothread.Paul Mundt1-0/+5
Signed-off-by: Paul Mundt <[email protected]>
2011-03-30sh: Fix irq cleanup falloutThomas Gleixner1-2/+2
I missed that coccinelle does not fix up header files by default. Reported-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Paul Mundt <[email protected]> Cc: <[email protected]>
2011-03-29sh: Convert to new function namesThomas Gleixner2-13/+13
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-29sh: Use the proper accessor functionsThomas Gleixner1-7/+2
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-23sh: Use struct syscore_ops instead of sysdevsRafael J. Wysocki2-49/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-01-19sh: update INTC to clear IRQ sense valid flagMagnus Damm1-2/+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 <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-12-24sh: intc: Initialize radix tree gfp mask explicitly.Paul Mundt1-0/+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 <[email protected]>
2010-11-15sh: intc: Fix up build failure introduced by radix tree changes.Paul Mundt1-1/+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 <[email protected]>
2010-11-01sh: intc: Update for single IRQ reservation helper.Paul Mundt2-2/+2
Signed-off-by: Paul Mundt <[email protected]>
2010-10-28sh: intc: switch irq_desc iteration to new active IRQ iterator.Paul Mundt1-8/+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 <[email protected]>
Powered by cgit, Gruvboxed by Blaster4385.