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2020-03-16MIPS: pass non-NULL dev_id on shared request_irq()afzal mohammed1-3/+3
Recently all usages of setup_irq() was replaced by request_irq(). request_irq() does a few sanity checks that were not done in setup_irq(), if they fail irq registration will fail. One of the check is to ensure that non-NULL dev_id is passed in the case of shared irq. This caused malta on qemu to hang. Fix it by passing handler as dev_id to all request_irq()'s that are shared. For sni, instead of passing non-NULL dev_id, remove shared irq flags. Fixes: ac8fd122e070 ("MIPS: Replace setup_irq() by request_irq()") Reported-by: Nathan Chancellor <natechancellor@gmail.com> Suggested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-05MIPS: Replace setup_irq() by request_irq()afzal mohammed1-14/+9
request_irq() is preferred over setup_irq(). Invocations of setup_irq() occur after memory allocators are ready. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). remove_irq() has been replaced by free_irq() as well. There were build error's during previous version, couple of which was reported by kbuild test robot <lkp@intel.com> of which one was reported by Thomas Bogendoerfer <tsbogend@alpha.franken.de> as well. There were a few more issues including build errors, those also have been fixed. [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig1-2/+2
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2016-05-28MIPS: Spelling fix lets -> let'sRalf Baechle1-1/+1
As noticed by Sergei in the discussion of Andrea Gelmini's patch series. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-19/+19
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Mark cascade and low level interrupts IRQF_NO_THREADWu Zhangjin1-0/+1
Mark interrupts with no_action handler, cascade interrupts, low level interrupts (bus error, halt ..) with IRQF_NO_THREAD to exclude them from forced threading. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-29MIPS: Convert the irq functions to the new namesThomas Gleixner1-2/+2
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-25MIPS: SNI: Convert to new irq_chip functionsThomas Gleixner1-27/+15
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2206/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-07MIPS: Add missing #inclusions of <linux/irq.h>David Howells1-0/+1
Add missing #inclusions of <linux/irq.h> to a whole bunch of files that should really include it. Note that this can replace #inclusions of <asm/irq.h>. This is required for the patch to sort out irqflags handling function naming to compile on MIPS. The problem is that these files require access to things like setup_irq() - which isn't available by #including <linux/interrupt.h> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock.Ralf Baechle1-11/+11
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Make various locks static.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-11MIPS: SNI: Correct NULL testJulia Lawall1-1/+1
Test the value that was just allocated rather than the previously tested one. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ expression *x; expression e; identifier l; @@ if (x == NULL || ...) { ... when forall return ...; } ... when != goto l; when != x = e when != &x *x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org To: kernel-janitors@vger.kernel.org Patchwork: http://patchwork.linux-mips.org/patch/945/ Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17MIPS: Fixup last users of irq_chip->typename Thomas Gleixner1-1/+1
The typename member of struct irq_chip was kept for migration purposes and is obsolete since more than 2 years. Fix up the leftovers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org To: LKML <linux-kernel@vger.kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Patchwork: http://patchwork.linux-mips.org/patch/661/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds1-1/+2
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: oprofile: Thou shalt not call __exit functions from __init functions cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic cpumask: remove cpumask_t from core cpumask: convert rcutorture.c cpumask: use new cpumask_ functions in core code. cpumask: remove references to struct irqaction's mask field. cpumask: use mm_cpumask() wrapper: kernel/fork.c cpumask: use set_cpu_active in init/main.c cpumask: remove node_to_first_cpu cpumask: fix seq_bitmap_*() functions. cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL
2009-03-30MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platformsRalf Baechle1-1/+1
__do_IRQ() is deprecated and will go away. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30cpumask: remove references to struct irqaction's mask field.Rusty Russell1-1/+2
Impact: cleanup It's unused, since about 1995. So remove all initialization of it in preparation for actually removing the field. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-29[MIPS] RM: Collected changesThomas Bogendoerfer1-12/+314
- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part is the splitting of the EISA and onboard ISA of the RM200, which makes the EISA bus on the RM200 look like on other RMs. - 64bit kernel support - system type detection is now common for big and little endian - moved sniprom code to arch/mips/fw - added call_o32 function to arch/mips/fw/lib, which uses a private stack for calling prom functions - fix problem with ISA interrupts, which makes using PIT clockevent possible Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-12[MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle1-5/+5
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-12[MIPS] Deforest the function pointer jungle in the time code.Ralf Baechle1-1/+0
Hard to follow who is pointing what to where and why so it's simply getting in the way of the time code renovation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-12[MIPS] RM: Use only phyiscal address for 82596 and 53c710Thomas Bogendoerfer1-2/+2
Use physical address for 82596 and 53c710 base address Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10[MIPS] SNI RM updatesThomas Bogendoerfer1-10/+22
- use RTC_CLASS instead of GEN_RTC - get rid of ds1216 in favour of a RTC_CLASS driver - use correct console device for older RM400 - use physical addresses for 82596 device - use 128 byte L1 cache line size (this is needed because most of the SNI caches are using 128 L2 cache lines) Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-27[MIPS] SNI: MIPS_CPU_IRQ_BASE cleanupThomas Bogendoerfer1-1/+1
Use MIPS_CPU_IRQ_BASE instead of own define. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-19[MIPS] Support for several more SNI RM models.Thomas Bogendoerfer1-0/+186
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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