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 CoreFPGA3 47K MT/ interAPtiv MPF, 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@xxxxxxxxxxx> --- Changes in v3: - Fix build errors reported by kernel test bot - Rebasing to current next - Link to v2: https://lore.kernel.org/r/20240705-b4-mips-ipi-improvements-v2-0-2d50b56268e8@xxxxxxxxxxx Changes in v2: - Build warning fixes - Massage commit messages - Link to v1: https://lore.kernel.org/r/20240616-b4-mips-ipi-improvements-v1-0-e332687f1692@xxxxxxxxxxx --- 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 | 111 ++++++------------ arch/mips/fw/arc/init.c | 1 - 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/octeon/octeon.h | 2 + arch/mips/include/asm/smp-ops.h | 8 +- arch/mips/include/asm/smp.h | 41 +++---- arch/mips/kernel/irq.c | 21 ++++ arch/mips/kernel/smp-bmips.c | 43 ++++--- arch/mips/kernel/smp-cps.c | 2 + arch/mips/kernel/smp-mt.c | 70 +++++++++++ arch/mips/kernel/smp.c | 213 +++++++++++++++++++++------------- arch/mips/loongson64/smp.c | 24 ++-- arch/mips/mm/c-octeon.c | 3 +- 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 +++++++++++++--------------------- 25 files changed, 577 insertions(+), 521 deletions(-) --- base-commit: 61c01d2e181adfba02fe09764f9fca1de2be0dbe change-id: 20240616-b4-mips-ipi-improvements-f8c86b1dc677 Best regards, -- Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
