linux-kernel - [PATCH 00/10] MIPS: IPI Improvements

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Message-Id: <20240616-b4-mips-ipi-improvements-v1-0-e332687f1692@flygoat.com>
Date: Sun, 16 Jun 2024 22:03:04 +0100
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Huacai Chen <chenhuacai@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Serge Semin <fancer.lancer@...il.com>, Paul Burton <paulburton@...nel.org>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: [PATCH 00/10] MIPS: IPI Improvements

Hi all,

This series improved general handling to MIPS IPI interrupts, made
IPI numbers scalable, and switch to IPI-MUX for all GERNERIC_IPI
users on mux.

It is a prerequisite for enabling IRQ_WORK for MIPS.

It has been tested on MIPS Boston I6500, malta SOC-It, Loongson-2K,
Cavium CN7130 (EdgeRouter 4), and an unannounced interaptiv UP MT
platform with EIC.

I don't really know broadcom platforms and SGI platforms well so
changes to those platforms are kept minimal (no functional change).

Please review.
Thanks

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
Jiaxun Yang (10):
      MIPS: smp: Make IPI interrupts scalable
      MIPS: smp: Manage IPI interrupts as percpu_devid interrupts
      MIPS: smp: Provide platform IPI virq & domain hooks
      MIPS: Move mips_smp_ipi_init call after prepare_cpus
      MIPS: smp: Implement IPI stats
      irqchip: irq-mips-gic: Switch to ipi_mux
      MIPS: Implement get_mips_sw_int hook
      MIPS: GIC: Implement get_sw_int hook
      irqchip: irq-mips-cpu: Rework software IRQ handling flow
      MIPS: smp-mt: Rework IPI functions

 arch/mips/Kconfig                |   2 +
 arch/mips/cavium-octeon/smp.c    | 109 +++++++-------------
 arch/mips/generic/irq.c          |  15 +++
 arch/mips/include/asm/ipi.h      |  71 +++++++++++++
 arch/mips/include/asm/irq.h      |   1 +
 arch/mips/include/asm/irq_cpu.h  |   3 +
 arch/mips/include/asm/mips-gic.h |  10 ++
 arch/mips/include/asm/smp-ops.h  |   8 +-
 arch/mips/include/asm/smp.h      |  42 +++-----
 arch/mips/kernel/irq.c           |  21 ++++
 arch/mips/kernel/smp-bmips.c     |  43 ++++----
 arch/mips/kernel/smp-cps.c       |   1 +
 arch/mips/kernel/smp-mt.c        |  70 +++++++++++++
 arch/mips/kernel/smp.c           | 216 ++++++++++++++++++++++++---------------
 arch/mips/loongson64/smp.c       |  51 ++++-----
 arch/mips/mm/c-octeon.c          |   2 +-
 arch/mips/sgi-ip27/ip27-smp.c    |  15 +--
 arch/mips/sgi-ip30/ip30-smp.c    |  15 +--
 arch/mips/sibyte/bcm1480/smp.c   |  19 ++--
 arch/mips/sibyte/sb1250/smp.c    |  13 +--
 drivers/irqchip/Kconfig          |   2 +-
 drivers/irqchip/irq-mips-cpu.c   | 180 +++++++++-----------------------
 drivers/irqchip/irq-mips-gic.c   | 213 ++++++++++++++------------------------
 23 files changed, 594 insertions(+), 528 deletions(-)
---
base-commit: a2a47d53ca1f74f60931487c27eeba3c17fb69c9
change-id: 20240616-b4-mips-ipi-improvements-f8c86b1dc677

Best regards,
-- 
Jiaxun Yang <jiaxun.yang@...goat.com>