From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arm64: Support arch_irq_work_raise() via self IPIs
Date: Mon, 12 May 2014 10:29:56 +0100 [thread overview]
Message-ID: <20140512092956.GB914@arm.com> (raw)
In-Reply-To: <1399760621-10954-1-git-send-email-larry.bassel@linaro.org>
On Sat, May 10, 2014 at 11:23:41PM +0100, Larry Bassel wrote:
> Support for arch_irq_work_raise() was missing from
> arm64 (a prerequisite for FULL_NOHZ).
[...]
> @@ -455,6 +457,14 @@ void arch_send_call_function_single_ipi(int cpu)
> smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
> }
>
> +#ifdef CONFIG_IRQ_WORK
> +void arch_irq_work_raise(void)
> +{
> + if (is_smp())
> + smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);
> +}
> +#endif
Does this even compile? We're probably better off just checking whether or
not smp_cross_call is NULL.
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Larry Bassel <larry.bassel@linaro.org>
Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
"khilman@linaro.org" <khilman@linaro.org>
Subject: Re: [PATCH v2] arm64: Support arch_irq_work_raise() via self IPIs
Date: Mon, 12 May 2014 10:29:56 +0100 [thread overview]
Message-ID: <20140512092956.GB914@arm.com> (raw)
In-Reply-To: <1399760621-10954-1-git-send-email-larry.bassel@linaro.org>
On Sat, May 10, 2014 at 11:23:41PM +0100, Larry Bassel wrote:
> Support for arch_irq_work_raise() was missing from
> arm64 (a prerequisite for FULL_NOHZ).
[...]
> @@ -455,6 +457,14 @@ void arch_send_call_function_single_ipi(int cpu)
> smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
> }
>
> +#ifdef CONFIG_IRQ_WORK
> +void arch_irq_work_raise(void)
> +{
> + if (is_smp())
> + smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);
> +}
> +#endif
Does this even compile? We're probably better off just checking whether or
not smp_cross_call is NULL.
Will
next prev parent reply other threads:[~2014-05-12 9:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-10 22:23 [PATCH v2] arm64: Support arch_irq_work_raise() via self IPIs Larry Bassel
2014-05-10 22:23 ` Larry Bassel
2014-05-12 9:29 ` Will Deacon [this message]
2014-05-12 9:29 ` Will Deacon
2014-05-12 15:38 ` Larry Bassel
2014-05-12 15:38 ` Larry Bassel
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