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* [RFC v1 00/25] Optimize irq flow handler
@ 2015-05-20  9:59 ` Jiang Liu
  0 siblings, 0 replies; 120+ messages in thread
From: Jiang Liu @ 2015-05-20  9:59 UTC (permalink / raw)
  To: Thomas Gleixner, Bjorn Helgaas, Benjamin Herrenschmidt,
	Ingo Molnar, H. Peter Anvin, Rafael J. Wysocki, Randy Dunlap,
	Yinghai Lu, Borislav Petkov, Matthias Brugger
  Cc: Jiang Liu, Konrad Rzeszutek Wilk, Tony Luck, x86, linux-kernel,
	linux-pci, linux-acpi, linux-arm-kernel, linux-mediatek

This is an patch set to optimize irq flow handler. It could be split
into three part.
1) Patch 1-12 get rid of redundant looking up of irq_desc and irq_data
   when we already had an pointer to corresponding irq_desc in irq
   flow handler. This part should be pretty safe.
2) Patch 13 is a perparation patch.
3) Patch 14-25 should be merge into one big fat patch, which kills
   the first parameter 'irq' of irq_flow_handler_t. I hope I have
   made all needed changes, but there are still some handler missed.
   After the conversion, there are only about 20 irq handlers which
   really access the irq number. This part is still in early stage
   and may cause building failures.

Please comment on whether we should be go on with the third part to
kill 'irq' of irq_flow_handler_t.

Thanks!
Gerry

Jiang Liu (25):
  ARM, irq: Use irq_desc_get_xxx() to avoid redundant lookup of
    irq_desc
  avr32, irq: Use irq_desc_get_xxx() to avoid redundant lookup of
    irq_desc
  MIPS, irq: Use irq_desc_get_xxx() to avoid redundant lookup of
    irq_desc
  powerpc, irq: Use irq_desc_get_xxx() to avoid redundant lookup of
    irq_desc
  gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  pinctrl: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  irqchip: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  mfd: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  ipu: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  sh: intc: Use irq_desc_get_xxx() to avoid redundant lookup of
    irq_desc
  keystone, irq: Use irq_data_get_xxx() to avoid redundant lookup of
    irq_data
  spmi: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  genirq: Kill the parameter 'irq' of kstat_incr_irqs_this_cpu()
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t
  genirq: Kill the first parameter 'irq' of irq_flow_handler_t

 arch/alpha/kernel/irq.c                         |    2 +-
 arch/arm/common/it8152.c                        |    2 +-
 arch/arm/common/locomo.c                        |    5 +--
 arch/arm/common/sa1111.c                        |    6 ++--
 arch/arm/include/asm/hardware/it8152.h          |    2 +-
 arch/arm/include/asm/mach/irq.h                 |    4 +--
 arch/arm/mach-dove/irq.c                        |    5 +--
 arch/arm/mach-footbridge/isa-irq.c              |    4 +--
 arch/arm/mach-gemini/gpio.c                     |    2 +-
 arch/arm/mach-imx/3ds_debugboard.c              |    2 +-
 arch/arm/mach-imx/mach-mx31ads.c                |    2 +-
 arch/arm/mach-iop13xx/msi.c                     |    2 +-
 arch/arm/mach-lpc32xx/irq.c                     |    4 +--
 arch/arm/mach-omap1/fpga.c                      |    2 +-
 arch/arm/mach-omap2/prm_common.c                |    2 +-
 arch/arm/mach-pxa/balloon3.c                    |    3 +-
 arch/arm/mach-pxa/cm-x2xx-pci.c                 |    4 +--
 arch/arm/mach-pxa/lpd270.c                      |    3 +-
 arch/arm/mach-pxa/pcm990-baseboard.c            |    1 +
 arch/arm/mach-pxa/viper.c                       |    3 +-
 arch/arm/mach-pxa/zeus.c                        |    3 +-
 arch/arm/mach-rpc/ecard.c                       |    2 +-
 arch/arm/mach-s3c64xx/common.c                  |    8 ++---
 arch/arm/mach-sa1100/neponset.c                 |    2 +-
 arch/arm/plat-orion/gpio.c                      |    4 +--
 arch/avr32/mach-at32ap/extint.c                 |    2 +-
 arch/avr32/mach-at32ap/pio.c                    |    4 +--
 arch/blackfin/kernel/ipipe.c                    |    4 +--
 arch/c6x/platforms/megamod-pic.c                |    3 +-
 arch/m68k/amiga/amiints.c                       |    8 ++---
 arch/m68k/coldfire/intc-5272.c                  |    4 +--
 arch/m68k/include/asm/mac_via.h                 |    2 +-
 arch/m68k/mac/baboon.c                          |    2 +-
 arch/m68k/mac/oss.c                             |    4 +--
 arch/m68k/mac/psc.c                             |    3 +-
 arch/m68k/mac/via.c                             |    6 ++--
 arch/mips/alchemy/common/irq.c                  |    4 +--
 arch/mips/alchemy/devboards/bcsr.c              |    3 +-
 arch/mips/ath25/ar2315.c                        |    4 +--
 arch/mips/ath25/ar5312.c                        |    4 +--
 arch/mips/ath79/irq.c                           |   11 ++++---
 arch/mips/cavium-octeon/octeon-irq.c            |   12 ++++---
 arch/mips/include/asm/netlogic/common.h         |    4 +--
 arch/mips/jz4740/gpio.c                         |    2 +-
 arch/mips/netlogic/common/smp.c                 |    4 +--
 arch/mips/pci/pci-ar2315.c                      |    4 +--
 arch/mips/pci/pci-ar71xx.c                      |    4 +--
 arch/mips/pci/pci-ar724x.c                      |    4 +--
 arch/mips/pci/pci-rt3883.c                      |    5 +--
 arch/mips/ralink/irq.c                          |    4 +--
 arch/powerpc/include/asm/qe_ic.h                |   23 ++++++--------
 arch/powerpc/include/asm/tsi108_pci.h           |    2 +-
 arch/powerpc/platforms/512x/mpc5121_ads_cpld.c  |    4 ++-
 arch/powerpc/platforms/52xx/media5200.c         |    2 +-
 arch/powerpc/platforms/52xx/mpc52xx_gpt.c       |    4 +--
 arch/powerpc/platforms/82xx/pq2ads-pci-pic.c    |    2 +-
 arch/powerpc/platforms/85xx/common.c            |    2 +-
 arch/powerpc/platforms/85xx/mpc85xx_ds.c        |    2 +-
 arch/powerpc/platforms/85xx/socrates_fpga_pic.c |    3 +-
 arch/powerpc/platforms/86xx/pic.c               |    2 +-
 arch/powerpc/platforms/8xx/m8xx_setup.c         |    2 +-
 arch/powerpc/platforms/cell/axon_msi.c          |    4 +--
 arch/powerpc/platforms/cell/interrupt.c         |    3 +-
 arch/powerpc/platforms/cell/spider-pic.c        |    2 +-
 arch/powerpc/platforms/chrp/setup.c             |    2 +-
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c   |    2 +-
 arch/powerpc/platforms/embedded6xx/mvme5100.c   |    2 +-
 arch/powerpc/platforms/pseries/setup.c          |    2 +-
 arch/powerpc/sysdev/ge/ge_pic.c                 |    2 +-
 arch/powerpc/sysdev/mpic.c                      |    2 +-
 arch/powerpc/sysdev/qe_lib/qe_ic.c              |    4 +--
 arch/powerpc/sysdev/tsi108_pci.c                |    2 +-
 arch/powerpc/sysdev/uic.c                       |    4 +--
 arch/powerpc/sysdev/xics/xics-common.c          |    2 +-
 arch/powerpc/sysdev/xilinx_intc.c               |    2 +-
 arch/sh/boards/mach-se/7343/irq.c               |    4 +--
 arch/sh/boards/mach-se/7722/irq.c               |    3 +-
 arch/sh/boards/mach-se/7724/irq.c               |    3 +-
 arch/sh/boards/mach-x3proto/gpio.c              |    4 +--
 arch/sh/cchips/hd6446x/hd64461.c                |    2 +-
 arch/sparc/kernel/leon_kernel.c                 |    2 +-
 arch/sparc/kernel/leon_pci_grpci1.c             |    2 +-
 arch/sparc/kernel/leon_pci_grpci2.c             |    2 +-
 arch/tile/kernel/pci_gx.c                       |    4 +--
 arch/unicore32/kernel/irq.c                     |    3 +-
 arch/x86/kernel/irq_64.c                        |    2 +-
 arch/x86/lguest/boot.c                          |    2 +-
 drivers/dma/ipu/ipu_irq.c                       |    8 +++--
 drivers/gpio/gpio-altera.c                      |    6 ++--
 drivers/gpio/gpio-bcm-kona.c                    |    4 +--
 drivers/gpio/gpio-davinci.c                     |    3 +-
 drivers/gpio/gpio-dwapb.c                       |    4 +--
 drivers/gpio/gpio-ep93xx.c                      |    5 +--
 drivers/gpio/gpio-intel-mid.c                   |    2 +-
 drivers/gpio/gpio-lynxpoint.c                   |    2 +-
 drivers/gpio/gpio-mpc8xxx.c                     |    2 +-
 drivers/gpio/gpio-msic.c                        |    2 +-
 drivers/gpio/gpio-msm-v2.c                      |    2 +-
 drivers/gpio/gpio-mvebu.c                       |    4 +--
 drivers/gpio/gpio-mxc.c                         |   10 +++---
 drivers/gpio/gpio-mxs.c                         |    4 +--
 drivers/gpio/gpio-omap.c                        |    4 +--
 drivers/gpio/gpio-pl061.c                       |    2 +-
 drivers/gpio/gpio-pxa.c                         |    2 +-
 drivers/gpio/gpio-sa1100.c                      |    4 +--
 drivers/gpio/gpio-tegra.c                       |    6 ++--
 drivers/gpio/gpio-timberdale.c                  |    7 +++--
 drivers/gpio/gpio-tz1090.c                      |    4 +--
 drivers/gpio/gpio-vf610.c                       |    4 +--
 drivers/gpio/gpio-zynq.c                        |    4 +--
 drivers/gpu/ipu-v3/ipu-common.c                 |    8 ++---
 drivers/irqchip/exynos-combiner.c               |    8 ++---
 drivers/irqchip/irq-armada-370-xp.c             |    2 +-
 drivers/irqchip/irq-bcm7038-l1.c                |    2 +-
 drivers/irqchip/irq-bcm7120-l2.c                |    2 +-
 drivers/irqchip/irq-brcmstb-l2.c                |    6 ++--
 drivers/irqchip/irq-dw-apb-ictl.c               |    6 ++--
 drivers/irqchip/irq-gic.c                       |    6 ++--
 drivers/irqchip/irq-imgpdc.c                    |    5 +--
 drivers/irqchip/irq-keystone.c                  |    3 +-
 drivers/irqchip/irq-metag-ext.c                 |    3 +-
 drivers/irqchip/irq-metag.c                     |    3 +-
 drivers/irqchip/irq-mips-gic.c                  |    2 +-
 drivers/irqchip/irq-mmp.c                       |    3 +-
 drivers/irqchip/irq-orion.c                     |    4 +--
 drivers/irqchip/irq-s3c24xx.c                   |    3 +-
 drivers/irqchip/irq-sunxi-nmi.c                 |    4 +--
 drivers/irqchip/irq-tb10x.c                     |    4 +--
 drivers/irqchip/irq-versatile-fpga.c            |    6 ++--
 drivers/irqchip/irq-vic.c                       |    2 +-
 drivers/irqchip/spear-shirq.c                   |    4 +--
 drivers/mfd/asic3.c                             |    2 +-
 drivers/mfd/ezx-pcap.c                          |    4 +--
 drivers/mfd/htc-egpio.c                         |    2 +-
 drivers/mfd/jz4740-adc.c                        |    2 +-
 drivers/mfd/max8997-irq.c                       |    8 ++---
 drivers/mfd/mt6397-core.c                       |    8 ++---
 drivers/mfd/pm8921-core.c                       |    2 +-
 drivers/mfd/t7l66xb.c                           |    4 +--
 drivers/mfd/tc6393xb.c                          |    4 +--
 drivers/mfd/twl6030-irq.c                       |    2 +-
 drivers/mfd/ucb1x00-core.c                      |    4 +--
 drivers/pci/host/pci-keystone-dw.c              |   15 ++++-----
 drivers/pci/host/pci-keystone.c                 |    7 +++--
 drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c       |    2 +-
 drivers/pinctrl/intel/pinctrl-baytrail.c        |    2 +-
 drivers/pinctrl/intel/pinctrl-cherryview.c      |    4 +--
 drivers/pinctrl/intel/pinctrl-intel.c           |    4 +--
 drivers/pinctrl/mediatek/pinctrl-mtk-common.c   |    6 ++--
 drivers/pinctrl/nomadik/pinctrl-nomadik.c       |   14 ++++-----
 drivers/pinctrl/pinctrl-amd.c                   |    7 +++--
 drivers/pinctrl/pinctrl-at91.c                  |    4 +--
 drivers/pinctrl/pinctrl-coh901.c                |    7 +++--
 drivers/pinctrl/pinctrl-rockchip.c              |    7 +++--
 drivers/pinctrl/pinctrl-single.c                |    4 +--
 drivers/pinctrl/pinctrl-st.c                    |   10 +++---
 drivers/pinctrl/qcom/pinctrl-msm.c              |    6 ++--
 drivers/pinctrl/samsung/pinctrl-exynos.c        |   12 +++----
 drivers/pinctrl/samsung/pinctrl-s3c24xx.c       |   26 ++++++++--------
 drivers/pinctrl/samsung/pinctrl-s3c64xx.c       |   32 +++++++++----------
 drivers/pinctrl/sirf/pinctrl-sirf.c             |    7 +++--
 drivers/pinctrl/spear/pinctrl-plgpio.c          |    2 +-
 drivers/pinctrl/sunxi/pinctrl-sunxi.c           |    7 +++--
 drivers/sh/intc/core.c                          |    4 +--
 drivers/sh/intc/virq.c                          |   17 +++++-----
 drivers/spmi/spmi-pmic-arb.c                    |    6 ++--
 include/linux/irq.h                             |   16 +++++-----
 include/linux/irqdesc.h                         |    9 ++++--
 include/linux/irqhandler.h                      |    2 +-
 kernel/irq/chip.c                               |   38 ++++++++++-------------
 kernel/irq/handle.c                             |    6 ++--
 kernel/irq/internals.h                          |    2 +-
 kernel/irq/irqdesc.c                            |    4 +--
 173 files changed, 420 insertions(+), 398 deletions(-)

-- 
1.7.10.4


^ permalink raw reply	[flat|nested] 120+ messages in thread

end of thread, other threads:[~2015-06-24 21:44 UTC | newest]

Thread overview: 120+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-05-20  9:59 [RFC v1 00/25] Optimize irq flow handler Jiang Liu
2015-05-20  9:59 ` Jiang Liu
2015-05-20  9:59 ` [RFC v1 01/25] ARM, irq: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-05-20 19:35   ` Russell King - ARM Linux
2015-05-20 19:35     ` Russell King - ARM Linux
2015-05-20  9:59 ` [RFC v1 02/25] avr32, " Jiang Liu
2015-05-20 10:15   ` Hans-Christian Egtvedt
2015-05-20  9:59 ` [RFC v1 03/25] MIPS, " Jiang Liu
2015-05-20  9:59 ` [RFC v1 04/25] powerpc, " Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-06-02  9:58   ` [RFC, v1, " Michael Ellerman
2015-05-20  9:59 ` [RFC v1 05/25] gpio: " Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-06-01 12:45   ` Linus Walleij
2015-06-01 12:45     ` Linus Walleij
2015-06-01 12:45     ` Linus Walleij
2015-06-01 13:48     ` Jiang Liu
2015-06-01 13:48       ` Jiang Liu
2015-06-01 13:48       ` Jiang Liu
2015-05-20  9:59 ` [RFC v1 06/25] pinctrl: " Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-06-01 12:46   ` Linus Walleij
2015-06-01 12:46     ` Linus Walleij
2015-05-20  9:59 ` [RFC v1 07/25] irqchip: " Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-05-20  9:59 ` [RFC v1 08/25] mfd: " Jiang Liu
2015-05-20 10:44   ` Lee Jones
2015-05-20 10:44     ` Lee Jones
2015-05-20  9:59 ` [RFC v1 09/25] ipu: " Jiang Liu
2015-05-20  9:59 ` [RFC v1 10/25] sh: intc: " Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-05-20 15:12   ` Thomas Gleixner
2015-05-20 15:12     ` Thomas Gleixner
2015-05-20 15:24     ` Jiang Liu
2015-05-20 15:24       ` Jiang Liu
2015-05-20  9:59 ` [RFC v1 11/25] keystone, irq: Use irq_data_get_xxx() to avoid redundant lookup of irq_data Jiang Liu
2015-05-20  9:59   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 12/25] spmi: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc Jiang Liu
2015-05-20 10:00 ` [RFC v1 13/25] genirq: Kill the parameter 'irq' of kstat_incr_irqs_this_cpu() Jiang Liu
2015-05-20 15:23   ` Thomas Gleixner
2015-05-20 10:00 ` [RFC v1 14/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t Jiang Liu
2015-05-20 15:25   ` Thomas Gleixner
2015-05-20 15:28     ` Jiang Liu
2015-05-20 18:35       ` Thomas Gleixner
2015-05-20 20:00         ` Julia Lawall
2015-05-20 20:12           ` Thomas Gleixner
2015-05-20 20:15             ` Julia Lawall
2015-05-20 20:22               ` Thomas Gleixner
2015-06-12 20:29                 ` Julia Lawall
2015-06-12 20:35                   ` Thomas Gleixner
2015-06-12 22:16                     ` Julia Lawall
2015-06-13  8:27         ` Julia Lawall
2015-06-13  9:00         ` Julia Lawall
2015-06-13  9:32           ` Thomas Gleixner
2015-06-13 14:04             ` Julia Lawall
2015-06-13 14:53               ` Julia Lawall
2015-06-13 16:49                 ` Jiang Liu
2015-06-13 20:15                   ` Julia Lawall
2015-06-13 20:32                     ` Thomas Gleixner
2015-06-13 20:42                       ` Julia Lawall
2015-06-24 21:10                         ` Thomas Gleixner
2015-06-24 21:44                           ` Julia Lawall
2015-06-13 21:42                       ` Julia Lawall
2015-05-20 18:36       ` Thomas Gleixner
2015-05-20 10:00 ` [RFC v1 15/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 15:28   ` Thomas Gleixner
2015-05-20 15:28     ` Thomas Gleixner
2015-05-20 15:28     ` Thomas Gleixner
2015-05-20 15:32     ` Jiang Liu
2015-05-20 15:32       ` Jiang Liu
2015-05-20 15:32       ` Jiang Liu
2015-05-20 15:48       ` Thomas Gleixner
2015-05-20 15:48         ` Thomas Gleixner
2015-05-20 15:48         ` Thomas Gleixner
2015-05-20 15:38   ` Hans Ulli Kroll
2015-05-20 15:38     ` Hans Ulli Kroll
2015-05-20 15:38     ` Hans Ulli Kroll
2015-05-20 18:54   ` Robert Jarzmik
2015-05-20 18:54     ` Robert Jarzmik
2015-05-20 18:54     ` Robert Jarzmik
2015-05-20 10:00 ` [RFC v1 16/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 17/25] " Jiang Liu
2015-05-20 10:00 ` [RFC v1 18/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 19/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 20/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:16   ` Hans-Christian Egtvedt
2015-05-20 10:16     ` Hans-Christian Egtvedt
2015-05-20 10:16     ` Hans-Christian Egtvedt
2015-05-20 10:00 ` [RFC v1 21/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 22/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 23/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 10:00 ` [RFC v1 24/25] " Jiang Liu
2015-05-20 10:43   ` Lee Jones
2015-05-20 10:43     ` Lee Jones
2015-05-20 10:00 ` [RFC v1 25/25] " Jiang Liu
2015-05-20 10:00   ` Jiang Liu
2015-05-20 15:40   ` Thomas Gleixner
2015-05-20 15:40     ` Thomas Gleixner
2015-05-20 15:49     ` Jiang Liu
2015-05-20 15:49       ` Jiang Liu
2015-05-20 18:43       ` Thomas Gleixner
2015-05-20 18:43         ` Thomas Gleixner
2015-05-20 10:16 ` [RFC v1 00/25] Optimize irq flow handler Ingo Molnar
2015-05-20 10:16   ` Ingo Molnar
2015-05-20 10:23   ` Jiang Liu
2015-05-20 10:23     ` Jiang Liu

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