linux-kernel - Re: [PATCH v7 05/15] irqchip: New RISC-V PLIC Driver

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Message-ID: <71a0632d-913e-d56a-037c-9990394b761f@infradead.org>
Date:   Tue, 1 Aug 2017 08:20:02 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Palmer Dabbelt <palmer@...belt.com>, peterz@...radead.org,
        tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
        Arnd Bergmann <arnd@...db.de>
Cc:     yamada.masahiro@...ionext.com, mmarek@...e.com, albert@...ive.com,
        will.deacon@....com, boqun.feng@...il.com, oleg@...hat.com,
        mingo@...hat.com, daniel.lezcano@...aro.org,
        gregkh@...uxfoundation.org, jslaby@...e.com, davem@...emloft.net,
        mchehab@...nel.org, hverkuil@...all.nl, viro@...iv.linux.org.uk,
        mhiramat@...nel.org, fweisbec@...il.com, mcgrof@...nel.org,
        dledford@...hat.com, bart.vanassche@...disk.com,
        sstabellini@...nel.org, mpe@...erman.id.au,
        rmk+kernel@...linux.org.uk, paul.gortmaker@...driver.com,
        nicolas.dichtel@...nd.com, linux@...ck-us.net,
        heiko.carstens@...ibm.com, schwidefsky@...ibm.com,
        geert@...ux-m68k.org, akpm@...ux-foundation.org,
        andriy.shevchenko@...ux.intel.com, jiri@...lanox.com,
        vgupta@...opsys.com, airlied@...hat.com, jk@...abs.org,
        chris@...is-wilson.co.uk, Jason@...c4.com,
        paulmck@...ux.vnet.ibm.com, ncardwell@...gle.com,
        linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        patches@...ups.riscv.org
Subject: Re: [PATCH v7 05/15] irqchip: New RISC-V PLIC Driver

On 07/31/2017 05:59 PM, Palmer Dabbelt wrote:
>  drivers/irqchip/Kconfig          |  13 ++
>  drivers/irqchip/Makefile         |   1 +
>  drivers/irqchip/irq-riscv-plic.c | 370 +++++++++++++++++++++++++++++++++++++++
>  3 files changed, 384 insertions(+)
>  create mode 100644 drivers/irqchip/irq-riscv-plic.c
> 
> diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
> index 7923d3fa8fae..ae5e27f090ec 100644
> --- a/drivers/irqchip/Kconfig
> +++ b/drivers/irqchip/Kconfig
> @@ -307,6 +307,19 @@ config QCOM_IRQ_COMBINER
>  	  Say yes here to add support for the IRQ combiner devices embedded
>  	  in Qualcomm Technologies chips.
>  
> +config RISCV_PLIC
> +        bool "Platform-Level Interrupt Controller"
> +	depends on RISCV
> +        default y
> +        help
> +	   This enables support for the PLIC chip found in standard RISC-V
> +	   systems.  The PLIC controls devices interrupts and connects them to
> +	   each core's local interrupt controller.  Aside from timer and
> +	   software interrupts, all other interrupt sources (MSI, GPIO, etc)
> +	   are subordinate to the PLIC.
> +
> +	   If you don't know what to do here, say Y.
> +
Please use tabs instead of spaces for indenting ("help", "default y", and "bool...").

-- 
~Randy