Commit 21edf509 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull irq updates from Thomas Gleixner:
 "Updates for the interrupt subsystem:

  Core changes:

   - Cleanup and simplification of common code to invoke the low level
     interrupt flow handlers when this invocation requires irqdomain
     resolution. Add the necessary core infrastructure.

   - Provide a proper interface for modular PMU drivers to set the
     interrupt affinity.

   - Add a request flag which allows to exclude interrupts from spurious
     interrupt detection. Useful especially for IPI handlers which
     always return IRQ_HANDLED which turns the spurious interrupt
     detection into a pointless waste of CPU cycles.

  Driver changes:

   - Bulk convert interrupt chip drivers to the new irqdomain low level
     flow handler invocation mechanism.

   - Add device tree bindings for the Renesas R-Car M3-W+ SoC

   - Enable modular build of the Qualcomm PDC driver

   - The usual small fixes and improvements"

* tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
  dt-bindings: interrupt-controller: arm,gic-v3: Describe GICv3 optional properties
  irqchip: gic-pm: Remove redundant error log of clock bulk
  irqchip/sun4i: Remove unnecessary oom message
  irqchip/irq-imx-gpcv2: Remove unnecessary oom message
  irqchip/imgpdc: Remove unnecessary oom message
  irqchip/gic-v3-its: Remove unnecessary oom message
  irqchip/gic-v2m: Remove unnecessary oom message
  irqchip/exynos-combiner: Remove unnecessary oom message
  irqchip: Bulk conversion to generic_handle_domain_irq()
  genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
  genirq: Add generic_handle_domain_irq() helper
  irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq()
  irqdesc: Fix __handle_domain_irq() comment
  genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co
  irqdomain: Introduce irq_resolve_mapping()
  irqdomain: Protect the linear revmap with RCU
  irqdomain: Cache irq_data instead of a virq number in the revmap
  irqdomain: Use struct_size() helper when allocating irqdomain
  irqdomain: Make normal and nomap irqdomains exclusive
  powerpc: Move the use of irq_domain_add_nomap() behind a config option
  ...
parents 62180152 3d2ce675

Documentation/core-api/irq/irq-domain.rst

+0 −1
Original line number Diff line number Diff line
@@ -146,7 +146,6 @@ Legacy 


	irq_domain_add_simple()

	irq_domain_add_legacy()

	irq_domain_add_legacy_isa()

	irq_domain_create_simple()

	irq_domain_create_legacy()

Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml

+13 −0
Original line number Diff line number Diff line
@@ -145,6 +145,19 @@ properties: 
        required:

          - affinity



  clocks:

    maxItems: 1



  clock-names:

    items:

      - const: aclk



  power-domains:

    maxItems: 1



  resets:

    maxItems: 1



dependencies:

  mbi-ranges: [ msi-controller ]

  msi-controller: [ mbi-ranges ]

Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ properties: 
          - renesas,intc-ex-r8a774c0    # RZ/G2E

          - renesas,intc-ex-r8a7795     # R-Car H3

          - renesas,intc-ex-r8a7796     # R-Car M3-W

          - renesas,intc-ex-r8a77961    # R-Car M3-W+

          - renesas,intc-ex-r8a77965    # R-Car M3-N

          - renesas,intc-ex-r8a77970    # R-Car V3M

          - renesas,intc-ex-r8a77980    # R-Car V3H

arch/arm/kernel/irq.c

+21 −1
Original line number Diff line number Diff line
@@ -63,7 +63,27 @@ int arch_show_interrupts(struct seq_file *p, int prec) 
 */

void handle_IRQ(unsigned int irq, struct pt_regs *regs)

{

	__handle_domain_irq(NULL, irq, false, regs);

	struct pt_regs *old_regs = set_irq_regs(regs);

	struct irq_desc *desc;



	irq_enter();



	/*

	 * Some hardware gives randomly wrong interrupts.  Rather

	 * than crashing, do something sensible.

	 */

	if (unlikely(!irq || irq >= nr_irqs))

		desc = NULL;

	else

		desc = irq_to_desc(irq);



	if (likely(desc))

		handle_irq_desc(desc);

	else

		ack_bad_irq(irq);



	irq_exit();

	set_irq_regs(old_regs);

}



/*

arch/mips/include/asm/irq.h

+0 −1
Original line number Diff line number Diff line
@@ -11,7 +11,6 @@ 


#include <linux/linkage.h>

#include <linux/smp.h>

#include <linux/irqdomain.h>



#include <asm/mipsmtregs.h>