[PATCH v2 00/14][treewide] irqdomain: Simplify interrupt handling

[Marc Zyngier]

Now that the core patches for generic_handle_domain_irq() have made it
into the core code (see [1]), this series goes over the tree to
simplify the interrupt handling by directly using the irq_data that is
now stored in the IRQ domain.

In summary, anything of the form:

- generic_handle_irq(irq_find_mapping(domain, hwirq)) or
- generic_handle_irq(irq_linear_revmap(domain, hwirq))

is turned into generic_handle_domain_irq(domain, hwirq), which deals
with the gory details.

This series goes over a number of subsystems and architectures, and
also adds a bit of documentation. For those of you wondering about a
merge strategy, all the patches should be independent. Maintainers can
either pick them up themselves, or give me an Ack so that I can take
them via the irqchip tree. Just let me know.

I have an extra set of patches dealing with nested interrupts, but
that still needs to mature a bit.

* From v1 [1]:
  - Merged all the preliminary patches and core support
  - Caught up with a few extra users in 5.14
  - Picked up ABs, RBs, with thanks
  - Rebased on top of v5.14-rc4

[1] https://lore.kernel.org/r/20210520163751.27325-1-maz@xxxxxxxxxx

Marc Zyngier (14):
  gpio: Bulk conversion to generic_handle_domain_irq()
  pinctrl: Bulk conversion to generic_handle_domain_irq()
  PCI: Bulk conversion to generic_handle_domain_irq()
  mfd: Bulk conversion to generic_handle_domain_irq()
  gpu: Bulk conversion to generic_handle_domain_irq()
  SH: Bulk conversion to generic_handle_domain_irq()
  ARM: Bulk conversion to generic_handle_domain_irq()
  mips: Bulk conversion to generic_handle_domain_irq()
  arc: Bulk conversion to generic_handle_domain_irq()
  xtensa: Bulk conversion to generic_handle_domain_irq()
  nios2: Bulk conversion to generic_handle_domain_irq()
  powerpc: Bulk conversion to generic_handle_domain_irq()
  EDAC/altera: Convert to generic_handle_domain_irq()
  Documentation: Update irq_domain.rst with new lookup APIs

 Documentation/core-api/irq/irq-domain.rst     | 28 +++++++++++++++++--
 arch/arc/kernel/mcip.c                        |  2 +-
 arch/arm/common/sa1111.c                      | 12 ++------
 arch/arm/mach-pxa/pxa_cplds_irqs.c            |  6 ++--
 arch/arm/mach-s3c/irq-s3c24xx.c               |  5 ++--
 arch/mips/ath25/ar2315.c                      | 14 +++++-----
 arch/mips/ath25/ar5312.c                      | 13 ++++-----
 arch/mips/lantiq/irq.c                        |  2 +-
 arch/mips/pci/pci-ar2315.c                    |  8 ++----
 arch/mips/pci/pci-rt3883.c                    |  5 ++--
 arch/mips/ralink/irq.c                        |  2 +-
 arch/mips/sgi-ip27/ip27-irq.c                 | 16 ++++-------
 arch/mips/sgi-ip30/ip30-irq.c                 |  8 ++----
 arch/nios2/kernel/irq.c                       |  4 +--
 arch/powerpc/platforms/4xx/uic.c              |  4 +--
 .../powerpc/platforms/512x/mpc5121_ads_cpld.c | 23 +++++++--------
 arch/powerpc/platforms/52xx/media5200.c       |  9 +++---
 arch/powerpc/platforms/52xx/mpc52xx_gpt.c     |  7 ++---
 arch/powerpc/platforms/82xx/pq2ads-pci-pic.c  |  6 ++--
 arch/powerpc/platforms/cell/interrupt.c       |  8 ++----
 arch/powerpc/platforms/cell/spider-pic.c      | 11 ++------
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 15 +++++-----
 arch/powerpc/platforms/powernv/opal-irqchip.c | 11 +++-----
 arch/powerpc/sysdev/fsl_mpic_err.c            | 11 +++-----
 arch/powerpc/sysdev/fsl_msi.c                 | 12 +++-----
 arch/sh/boards/mach-se/7343/irq.c             |  2 +-
 arch/sh/boards/mach-se/7722/irq.c             |  2 +-
 arch/sh/boards/mach-x3proto/gpio.c            |  2 +-
 arch/xtensa/kernel/irq.c                      |  4 +--
 drivers/edac/altera_edac.c                    |  7 ++---
 drivers/gpio/gpio-104-dio-48e.c               |  4 +--
 drivers/gpio/gpio-104-idi-48.c                |  4 +--
 drivers/gpio/gpio-104-idio-16.c               |  2 +-
 drivers/gpio/gpio-altera.c                    | 11 ++++----
 drivers/gpio/gpio-aspeed-sgpio.c              |  9 ++----
 drivers/gpio/gpio-aspeed.c                    |  9 ++----
 drivers/gpio/gpio-ath79.c                     |  7 ++---
 drivers/gpio/gpio-bcm-kona.c                  |  6 ++--
 drivers/gpio/gpio-brcmstb.c                   |  5 ++--
 drivers/gpio/gpio-cadence.c                   |  2 +-
 drivers/gpio/gpio-davinci.c                   |  3 +-
 drivers/gpio/gpio-dln2.c                      | 22 ++++++---------
 drivers/gpio/gpio-em.c                        |  2 +-
 drivers/gpio/gpio-ep93xx.c                    |  8 +++---
 drivers/gpio/gpio-ftgpio010.c                 |  3 +-
 drivers/gpio/gpio-hisi.c                      |  4 +--
 drivers/gpio/gpio-hlwd.c                      |  7 ++---
 drivers/gpio/gpio-merrifield.c                |  8 ++----
 drivers/gpio/gpio-mpc8xxx.c                   |  2 +-
 drivers/gpio/gpio-mt7621.c                    |  4 +--
 drivers/gpio/gpio-mxc.c                       |  2 +-
 drivers/gpio/gpio-mxs.c                       |  2 +-
 drivers/gpio/gpio-omap.c                      |  3 +-
 drivers/gpio/gpio-pci-idio-16.c               |  2 +-
 drivers/gpio/gpio-pcie-idio-24.c              |  3 +-
 drivers/gpio/gpio-pl061.c                     |  4 +--
 drivers/gpio/gpio-pxa.c                       |  9 +++---
 drivers/gpio/gpio-rcar.c                      |  4 +--
 drivers/gpio/gpio-rda.c                       |  8 ++----
 drivers/gpio/gpio-realtek-otto.c              |  7 ++---
 drivers/gpio/gpio-sch.c                       |  2 +-
 drivers/gpio/gpio-sodaville.c                 |  2 +-
 drivers/gpio/gpio-sprd.c                      | 12 +++-----
 drivers/gpio/gpio-tb10x.c                     |  2 +-
 drivers/gpio/gpio-tegra.c                     |  9 +++---
 drivers/gpio/gpio-tegra186.c                  |  9 ++----
 drivers/gpio/gpio-tqmx86.c                    | 10 +++----
 drivers/gpio/gpio-vf610.c                     |  2 +-
 drivers/gpio/gpio-ws16c48.c                   |  4 +--
 drivers/gpio/gpio-xgs-iproc.c                 |  2 +-
 drivers/gpio/gpio-xilinx.c                    |  2 +-
 drivers/gpio/gpio-xlp.c                       |  3 +-
 drivers/gpio/gpio-zynq.c                      |  8 ++----
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c       |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c      | 15 +++-------
 drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c     |  3 +-
 drivers/gpu/ipu-v3/ipu-common.c               | 11 +++-----
 drivers/mfd/db8500-prcmu.c                    |  2 +-
 drivers/mfd/fsl-imx25-tsadc.c                 |  4 +--
 drivers/mfd/ioc3.c                            | 10 ++-----
 drivers/mfd/qcom-pm8xxx.c                     | 10 +++----
 drivers/pci/controller/dwc/pci-dra7xx.c       | 16 ++++-------
 drivers/pci/controller/dwc/pci-keystone.c     | 14 ++++------
 .../pci/controller/dwc/pcie-designware-host.c |  9 +++---
 drivers/pci/controller/dwc/pcie-uniphier.c    |  8 ++----
 .../controller/mobiveil/pcie-mobiveil-host.c  | 15 ++++------
 drivers/pci/controller/pci-aardvark.c         |  5 ++--
 drivers/pci/controller/pci-ftpci100.c         |  2 +-
 drivers/pci/controller/pci-tegra.c            |  8 ++----
 drivers/pci/controller/pci-xgene-msi.c        |  9 ++----
 drivers/pci/controller/pcie-altera-msi.c      | 10 +++----
 drivers/pci/controller/pcie-altera.c          | 10 +++----
 drivers/pci/controller/pcie-brcmstb.c         |  9 +++---
 drivers/pci/controller/pcie-iproc-msi.c       |  4 +--
 drivers/pci/controller/pcie-mediatek-gen3.c   | 13 +++------
 drivers/pci/controller/pcie-mediatek.c        | 12 +++-----
 drivers/pci/controller/pcie-microchip-host.c  | 18 +++++-------
 drivers/pci/controller/pcie-rcar-host.c       |  8 ++----
 drivers/pci/controller/pcie-rockchip-host.c   |  8 ++----
 drivers/pci/controller/pcie-xilinx-cpm.c      |  4 +--
 drivers/pci/controller/pcie-xilinx-nwl.c      | 13 ++-------
 drivers/pci/controller/pcie-xilinx.c          |  9 +++---
 drivers/pinctrl/actions/pinctrl-owl.c         |  5 ++--
 drivers/pinctrl/bcm/pinctrl-bcm2835.c         |  4 +--
 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c      |  3 +-
 drivers/pinctrl/bcm/pinctrl-nsp-gpio.c        |  3 +-
 drivers/pinctrl/intel/pinctrl-baytrail.c      |  7 ++---
 drivers/pinctrl/intel/pinctrl-cherryview.c    |  5 ++--
 drivers/pinctrl/intel/pinctrl-lynxpoint.c     |  8 ++----
 drivers/pinctrl/mediatek/mtk-eint.c           |  5 ++--
 drivers/pinctrl/nomadik/pinctrl-nomadik.c     |  2 +-
 drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c     |  2 +-
 drivers/pinctrl/pinctrl-amd.c                 |  6 ++--
 drivers/pinctrl/pinctrl-at91.c                |  6 ++--
 drivers/pinctrl/pinctrl-equilibrium.c         |  2 +-
 drivers/pinctrl/pinctrl-ingenic.c             |  2 +-
 drivers/pinctrl/pinctrl-microchip-sgpio.c     |  2 +-
 drivers/pinctrl/pinctrl-ocelot.c              |  3 +-
 drivers/pinctrl/pinctrl-oxnas.c               |  2 +-
 drivers/pinctrl/pinctrl-pic32.c               |  2 +-
 drivers/pinctrl/pinctrl-pistachio.c           |  2 +-
 drivers/pinctrl/pinctrl-rockchip.c            | 15 ++++------
 drivers/pinctrl/pinctrl-single.c              |  4 +--
 drivers/pinctrl/pinctrl-st.c                  |  2 +-
 drivers/pinctrl/qcom/pinctrl-msm.c            |  4 +--
 drivers/pinctrl/samsung/pinctrl-exynos.c      | 15 +++++-----
 drivers/pinctrl/samsung/pinctrl-s3c24xx.c     | 25 +++++++----------
 drivers/pinctrl/samsung/pinctrl-s3c64xx.c     | 17 +++++------
 drivers/pinctrl/spear/pinctrl-plgpio.c        |  3 +-
 drivers/pinctrl/sunxi/pinctrl-sunxi.c         |  8 ++----
 130 files changed, 362 insertions(+), 555 deletions(-)

-- 
2.30.2