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Date: Sat, 7 Sep 2019 11:13:14 +0800
From: Huacai Chen <chenhc@...ote.com>
To: Jiaxun Yang <jiaxun.yang@...goat.com>
Cc: "open list:MIPS" <linux-mips@...r.kernel.org>,
Paul Burton <paul.burton@...s.com>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <maz@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....co>, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 00/19] Modernize Loongson64 Machine
Hi, Jiaxun,
All of us think that Loongson Technology Co. Ltd's naming is very
confusing. They call both their processors and their bridge-chipset
as "Loongson", so Loongson-3A is processor, Loongson-7A is bridge, and
Loongson-2H can be both processor and bridge.....
We all think this is a bad thing, so let's do something in our code to
make life easier:
1, Don't use raw "ls" to stand for loongson anywhere.
2, To describe CPU please use "loongson". E.g., Loongson, Loongson-3,
Loongson-2H, Loongson-3A, Loongson-3B, Loongson-3A4000.
3, To describe bridge (chipset, or PCH) please use LS2H, LS2K and
LS7A, and we can use LS2X to cover them all in some drivers.
4, In file names use their lower-case names. E.g., loongson,
loongson3, ls2h, ls7a.
Don't be afraid of long names. Long names is harmless, but disordered
abbreviation is a nightmare.
Huacai
On Thu, Sep 5, 2019 at 10:44 PM Jiaxun Yang <jiaxun.yang@...goat.com> wrote:
>
> v1:
> - dt-bindings fixup according to Rob's comments
> - irqchip fixup according to Marc's comments
> - ls3-iointc: Make Core&IP map per-IRQ
> - Regenerate kconfigs
> - Typo & style improvements
>
> v2:
> - dt-bindings: Fix IOINTC, collect Rob's review tag
> - dtbs: Drop CPU Node, merge different ways according to Huacai and Paul's comments
>
> Jiaxun Yang (19):
> MIPS: Loongson64: Rename CPU TYPES
> MIPS: Loongson64: separate loongson2ef/loongson64 code
> MAINTAINERS: Fix entries for new loongson64 path
> irqchip: Export generic chip domain map/unmap functions
> irqchip: Add driver for Loongson-3 I/O interrupt controller
> dt-bindings: interrupt-controller: Add Loongson-3 IOINTC
> irqchip: Add driver for Loongson-3 HyperTransport interrupt controller
> dt-bindings: interrupt-controller: Add Loongson-3 HTINTC
> irqchip: i8259: Add plat-poll support
> irqchip: mips-cpu: Convert to simple domain
> MIPS: Loongson64: Drop legacy IRQ code
> dt-bindings: mips: Add loongson boards
> dt-bindings: Document loongson vendor-prefix
> MIPS: Loongson64: Add generic dts
> MIPS: Loongson64: Load built-in dtbs
> GPIO: loongson: Drop Loongson-3A/3B support
> MIPS: Loongson: Regenerate defconfigs
> MAINTAINERS: Add new pathes to LOONGSON64 ARCHITECTURE
> MAINTAINERS: Add myself as maintainer of LOONGSON64
>
> .../loongson,ls3-htintc.yaml | 55 ++++
> .../loongson,ls3-iointc.yaml | 79 +++++
> .../bindings/mips/loongson/devices.yaml | 39 +++
> .../devicetree/bindings/vendor-prefixes.yaml | 2 +
> MAINTAINERS | 13 +-
> arch/mips/Kbuild.platforms | 1 +
> arch/mips/Kconfig | 83 ++++--
> arch/mips/boot/dts/Makefile | 1 +
> arch/mips/boot/dts/loongson/3a-package.dtsi | 69 +++++
> arch/mips/boot/dts/loongson/3a1000_780e.dts | 10 +
> arch/mips/boot/dts/loongson/3a2000_780e.dts | 10 +
> arch/mips/boot/dts/loongson/3a3000_780e.dts | 10 +
> arch/mips/boot/dts/loongson/3b-package.dtsi | 69 +++++
> arch/mips/boot/dts/loongson/3b1x00_780e.dts | 10 +
> arch/mips/boot/dts/loongson/Makefile | 5 +
> arch/mips/boot/dts/loongson/rs780e-pch.dtsi | 35 +++
> arch/mips/configs/fuloong2e_defconfig | 8 +-
> arch/mips/configs/lemote2f_defconfig | 8 +-
> arch/mips/configs/loongson3_defconfig | 13 +-
> arch/mips/include/asm/bootinfo.h | 1 -
> arch/mips/include/asm/cop2.h | 2 +-
> arch/mips/include/asm/cpu-type.h | 6 +-
> arch/mips/include/asm/cpu.h | 4 +-
> arch/mips/include/asm/hazards.h | 2 +-
> arch/mips/include/asm/io.h | 2 +-
> arch/mips/include/asm/irqflags.h | 2 +-
> .../mach-loongson2ef/cpu-feature-overrides.h | 45 +++
> .../cs5536/cs5536.h | 0
> .../cs5536/cs5536_mfgpt.h | 0
> .../cs5536/cs5536_pci.h | 0
> .../cs5536/cs5536_vsm.h | 0
> .../loongson2ef.h} | 31 +-
> .../machine.h | 6 -
> .../mc146818rtc.h | 5 +-
> .../mem.h | 6 +-
> arch/mips/include/asm/mach-loongson2ef/pci.h | 43 +++
> .../include/asm/mach-loongson2ef/spaces.h | 10 +
> .../asm/mach-loongson64/builtin_dtbs.h | 16 +
> .../mach-loongson64/cpu-feature-overrides.h | 8 +-
> arch/mips/include/asm/mach-loongson64/irq.h | 6 +-
> .../asm/mach-loongson64/kernel-entry-init.h | 74 -----
> .../include/asm/mach-loongson64/loongson64.h | 50 ++++
> .../mips/include/asm/mach-loongson64/mmzone.h | 16 -
> arch/mips/include/asm/mach-loongson64/pci.h | 41 +--
> .../include/asm/mach-loongson64/workarounds.h | 4 +-
> arch/mips/include/asm/module.h | 8 +-
> arch/mips/include/asm/processor.h | 2 +-
> arch/mips/include/asm/r4kcache.h | 4 +-
> arch/mips/kernel/cpu-probe.c | 14 +-
> arch/mips/kernel/idle.c | 2 +-
> arch/mips/kernel/perf_event_mipsxx.c | 4 +-
> arch/mips/kernel/setup.c | 2 +-
> arch/mips/kernel/traps.c | 2 +-
> arch/mips/lib/csum_partial.S | 4 +-
> arch/mips/loongson2ef/Kconfig | 93 ++++++
> arch/mips/loongson2ef/Makefile | 18 ++
> arch/mips/loongson2ef/Platform | 32 ++
> .../common/Makefile | 0
> .../common/bonito-irq.c | 2 +-
> .../common/cmdline.c | 2 +-
> .../common/cs5536/Makefile | 0
> .../common/cs5536/cs5536_acc.c | 0
> .../common/cs5536/cs5536_ehci.c | 0
> .../common/cs5536/cs5536_ide.c | 0
> .../common/cs5536/cs5536_isa.c | 0
> .../common/cs5536/cs5536_mfgpt.c | 0
> .../common/cs5536/cs5536_ohci.c | 0
> .../common/cs5536/cs5536_pci.c | 0
> .../common/early_printk.c | 2 +-
> arch/mips/loongson2ef/common/env.c | 71 +++++
> .../{loongson64 => loongson2ef}/common/init.c | 7 +-
> .../{loongson64 => loongson2ef}/common/irq.c | 2 +-
> .../common/machtype.c | 3 +-
> .../{loongson64 => loongson2ef}/common/mem.c | 40 +--
> .../{loongson64 => loongson2ef}/common/pci.c | 11 +-
> .../common/platform.c | 0
> .../{loongson64 => loongson2ef}/common/pm.c | 2 +-
> .../common/reset.c | 23 +-
> .../{loongson64 => loongson2ef}/common/rtc.c | 0
> .../common/serial.c | 37 +--
> .../common/setup.c | 2 +-
> .../{loongson64 => loongson2ef}/common/time.c | 2 +-
> .../common/uart_base.c | 10 +-
> .../fuloong-2e/Makefile | 0
> .../fuloong-2e/dma.c | 0
> .../fuloong-2e/irq.c | 2 +-
> .../fuloong-2e/reset.c | 2 +-
> .../lemote-2f/Makefile | 0
> .../lemote-2f/clock.c | 2 +-
> .../lemote-2f/dma.c | 0
> .../lemote-2f/ec_kb3310b.c | 0
> .../lemote-2f/ec_kb3310b.h | 0
> .../lemote-2f/irq.c | 2 +-
> .../lemote-2f/machtype.c | 2 +-
> .../lemote-2f/pm.c | 2 +-
> .../lemote-2f/reset.c | 2 +-
> arch/mips/loongson64/Kconfig | 126 +-------
> arch/mips/loongson64/Makefile | 23 +-
> arch/mips/loongson64/Platform | 36 +--
> .../loongson64/{loongson-3 => }/acpi_init.c | 3 +-
> .../loongson64/{loongson-3 => }/cop2-ex.c | 5 +-
> arch/mips/loongson64/{loongson-3 => }/dma.c | 6 +-
> arch/mips/loongson64/{common => }/env.c | 98 +++----
> arch/mips/loongson64/{loongson-3 => }/hpet.c | 0
> arch/mips/loongson64/irq.c | 27 ++
> arch/mips/loongson64/loongson-3/Makefile | 11 -
> arch/mips/loongson64/loongson-3/irq.c | 158 ----------
> arch/mips/loongson64/{loongson-3 => }/numa.c | 4 +-
> arch/mips/loongson64/pci.c | 45 +++
> .../loongson64/{loongson-3 => }/platform.c | 0
> arch/mips/loongson64/reset.c | 58 ++++
> arch/mips/loongson64/setup.c | 107 +++++++
> arch/mips/loongson64/{loongson-3 => }/smp.c | 28 +-
> arch/mips/loongson64/{loongson-3 => }/smp.h | 0
> arch/mips/mm/c-r4k.c | 32 +-
> arch/mips/mm/page.c | 2 +-
> arch/mips/mm/tlb-r4k.c | 4 +-
> arch/mips/mm/tlbex.c | 6 +-
> arch/mips/oprofile/Makefile | 4 +-
> arch/mips/oprofile/common.c | 4 +-
> arch/mips/oprofile/op_model_loongson2.c | 2 +-
> arch/mips/oprofile/op_model_loongson3.c | 2 +-
> arch/mips/pci/Makefile | 2 +-
> arch/mips/pci/fixup-fuloong2e.c | 2 +-
> arch/mips/pci/fixup-lemote2f.c | 2 +-
> arch/mips/pci/ops-loongson2.c | 2 +-
> arch/mips/pci/ops-loongson3.c | 2 +-
> drivers/cpufreq/loongson2_cpufreq.c | 2 +-
> drivers/gpio/Kconfig | 6 +-
> drivers/gpio/gpio-loongson.c | 11 +-
> drivers/irqchip/Kconfig | 17 ++
> drivers/irqchip/Makefile | 2 +
> drivers/irqchip/irq-i8259.c | 47 ++-
> drivers/irqchip/irq-ls3-htintc.c | 147 ++++++++++
> drivers/irqchip/irq-ls3-iointc.c | 275 ++++++++++++++++++
> drivers/irqchip/irq-mips-cpu.c | 2 +-
> drivers/platform/mips/cpu_hwmon.c | 2 +-
> include/drm/drm_cache.h | 2 +-
> include/linux/irq.h | 1 +
> kernel/irq/generic-chip.c | 4 +-
> 140 files changed, 1760 insertions(+), 874 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-htintc.yaml
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-iointc.yaml
> create mode 100644 Documentation/devicetree/bindings/mips/loongson/devices.yaml
> create mode 100644 arch/mips/boot/dts/loongson/3a-package.dtsi
> create mode 100644 arch/mips/boot/dts/loongson/3a1000_780e.dts
> create mode 100644 arch/mips/boot/dts/loongson/3a2000_780e.dts
> create mode 100644 arch/mips/boot/dts/loongson/3a3000_780e.dts
> create mode 100644 arch/mips/boot/dts/loongson/3b-package.dtsi
> create mode 100644 arch/mips/boot/dts/loongson/3b1x00_780e.dts
> create mode 100644 arch/mips/boot/dts/loongson/Makefile
> create mode 100644 arch/mips/boot/dts/loongson/rs780e-pch.dtsi
> create mode 100644 arch/mips/include/asm/mach-loongson2ef/cpu-feature-overrides.h
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/cs5536/cs5536.h (100%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/cs5536/cs5536_mfgpt.h (100%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/cs5536/cs5536_pci.h (100%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/cs5536/cs5536_vsm.h (100%)
> rename arch/mips/include/asm/{mach-loongson64/loongson.h => mach-loongson2ef/loongson2ef.h} (91%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/machine.h (80%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/mc146818rtc.h (80%)
> rename arch/mips/include/asm/{mach-loongson64 => mach-loongson2ef}/mem.h (86%)
> create mode 100644 arch/mips/include/asm/mach-loongson2ef/pci.h
> create mode 100644 arch/mips/include/asm/mach-loongson2ef/spaces.h
> create mode 100644 arch/mips/include/asm/mach-loongson64/builtin_dtbs.h
> delete mode 100644 arch/mips/include/asm/mach-loongson64/kernel-entry-init.h
> create mode 100644 arch/mips/include/asm/mach-loongson64/loongson64.h
> create mode 100644 arch/mips/loongson2ef/Kconfig
> create mode 100644 arch/mips/loongson2ef/Makefile
> create mode 100644 arch/mips/loongson2ef/Platform
> rename arch/mips/{loongson64 => loongson2ef}/common/Makefile (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/bonito-irq.c (97%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cmdline.c (97%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/Makefile (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_acc.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_ehci.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_ide.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_isa.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_mfgpt.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_ohci.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/cs5536/cs5536_pci.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/early_printk.c (97%)
> create mode 100644 arch/mips/loongson2ef/common/env.c
> rename arch/mips/{loongson64 => loongson2ef}/common/init.c (90%)
> rename arch/mips/{loongson64 => loongson2ef}/common/irq.c (98%)
> rename arch/mips/{loongson64 => loongson2ef}/common/machtype.c (94%)
> rename arch/mips/{loongson64 => loongson2ef}/common/mem.c (72%)
> rename arch/mips/{loongson64 => loongson2ef}/common/pci.c (89%)
> rename arch/mips/{loongson64 => loongson2ef}/common/platform.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/pm.c (99%)
> rename arch/mips/{loongson64 => loongson2ef}/common/reset.c (77%)
> rename arch/mips/{loongson64 => loongson2ef}/common/rtc.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/common/serial.c (63%)
> rename arch/mips/{loongson64 => loongson2ef}/common/setup.c (97%)
> rename arch/mips/{loongson64 => loongson2ef}/common/time.c (96%)
> rename arch/mips/{loongson64 => loongson2ef}/common/uart_base.c (77%)
> rename arch/mips/{loongson64 => loongson2ef}/fuloong-2e/Makefile (100%)
> rename arch/mips/{loongson64 => loongson2ef}/fuloong-2e/dma.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/fuloong-2e/irq.c (98%)
> rename arch/mips/{loongson64 => loongson2ef}/fuloong-2e/reset.c (93%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/Makefile (100%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/clock.c (98%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/dma.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/ec_kb3310b.c (100%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/ec_kb3310b.h (100%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/irq.c (99%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/machtype.c (98%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/pm.c (99%)
> rename arch/mips/{loongson64 => loongson2ef}/lemote-2f/reset.c (99%)
> rename arch/mips/loongson64/{loongson-3 => }/acpi_init.c (99%)
> rename arch/mips/loongson64/{loongson-3 => }/cop2-ex.c (88%)
> rename arch/mips/loongson64/{loongson-3 => }/dma.c (82%)
> rename arch/mips/loongson64/{common => }/env.c (83%)
> rename arch/mips/loongson64/{loongson-3 => }/hpet.c (100%)
> create mode 100644 arch/mips/loongson64/irq.c
> delete mode 100644 arch/mips/loongson64/loongson-3/Makefile
> delete mode 100644 arch/mips/loongson64/loongson-3/irq.c
> rename arch/mips/loongson64/{loongson-3 => }/numa.c (98%)
> create mode 100644 arch/mips/loongson64/pci.c
> rename arch/mips/loongson64/{loongson-3 => }/platform.c (100%)
> create mode 100644 arch/mips/loongson64/reset.c
> create mode 100644 arch/mips/loongson64/setup.c
> rename arch/mips/loongson64/{loongson-3 => }/smp.c (98%)
> rename arch/mips/loongson64/{loongson-3 => }/smp.h (100%)
> create mode 100644 drivers/irqchip/irq-ls3-htintc.c
> create mode 100644 drivers/irqchip/irq-ls3-iointc.c
>
> --
> 2.22.0
>
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