From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>, Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
"maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..."
<bcm-kernel-feedback-list@broadcom.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
"moderated list:ARM SUB-ARCHITECTURES"
<linux-arm-kernel@lists.infradead.org>,
"open list:MIPS" <linux-mips@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE"
<devicetree@vger.kernel.org>
Subject: Re: [PATCH v3 01/14] MIPS: BMIPS: Remove use of irq_cpu_offline
Date: Sun, 3 Oct 2021 18:09:05 +0200 [thread overview]
Message-ID: <20211003160905.GD4984@alpha.franken.de> (raw)
In-Reply-To: <20210928182139.652896-2-f.fainelli@gmail.com>
On Tue, Sep 28, 2021 at 11:21:26AM -0700, Florian Fainelli wrote:
> irq_cpu_offline() is only used by MIPS and we should instead use
> irq_migrate_all_off_this_cpu(). This will be helpful in order to remove
> drivers/irqchip/irq-bcm7038-l1.c irq_cpu_offline callback which would
> have got in the way of making this driver modular.
>
> Suggested-by: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> arch/mips/Kconfig | 1 +
> arch/mips/kernel/smp-bmips.c | 3 ++-
> 2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 771ca53af06d..2c03b27cec02 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -1782,6 +1782,7 @@ config CPU_BMIPS
> select CPU_HAS_PREFETCH
> select CPU_SUPPORTS_CPUFREQ
> select MIPS_EXTERNAL_TIMER
> + select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
> help
> Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
>
> diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
> index b6ef5f7312cf..f5d7bfa3472a 100644
> --- a/arch/mips/kernel/smp-bmips.c
> +++ b/arch/mips/kernel/smp-bmips.c
> @@ -26,6 +26,7 @@
> #include <linux/bug.h>
> #include <linux/kernel.h>
> #include <linux/kexec.h>
> +#include <linux/irq.h>
>
> #include <asm/time.h>
> #include <asm/processor.h>
> @@ -373,7 +374,7 @@ static int bmips_cpu_disable(void)
>
> set_cpu_online(cpu, false);
> calculate_cpu_foreign_map();
> - irq_cpu_offline();
> + irq_migrate_all_off_this_cpu();
> clear_c0_status(IE_IRQ5);
>
> local_flush_tlb_all();
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
next prev parent reply other threads:[~2021-10-03 16:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-28 18:21 [PATCH v3 00/14] Modular Broadcom irqchip drivers Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 01/14] MIPS: BMIPS: Remove use of irq_cpu_offline Florian Fainelli
2021-10-03 16:09 ` Thomas Bogendoerfer [this message]
2021-09-28 18:21 ` [PATCH v3 02/14] irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline() Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 03/14] irqchip/irq-bcm7038-l1: Use irq_get_irq_data() Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 04/14] irqchip/irq-bcm7038-l1: Gate use of CPU logical map to MIPS Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 05/14] irqchip/irq-bcm7038-l1: Restrict affinity setting " Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 06/14] irqchip/irq-bcm7038-l1: Switch to IRQCHIP_PLATFORM_DRIVER Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 07/14] genirq: Export irq_gc_{unmask_enable,mask_disable}_reg Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 08/14] irqchip/irq-brcmstb-l2: Switch to IRQCHIP_PLATFORM_DRIVER Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 09/14] irqchip: Provide platform_device to of_irq_init_cb_t Florian Fainelli
2021-09-28 19:36 ` Rob Herring
2021-09-28 18:21 ` [PATCH v3 10/14] genirq: Export irq_gc_noop() Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 11/14] irqchip/irq-bcm7120-l2: Switch to IRQCHIP_PLATFORM_DRIVER Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 12/14] arm64: broadcom: Removed forced select of interrupt controllers Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 13/14] ARM: bcm: " Florian Fainelli
2021-09-28 18:21 ` [PATCH v3 14/14] irqchip: Fix kernel-doc parameter typo for IRQCHIP_DECLARE Florian Fainelli
2021-09-28 18:41 ` Sergey Shtylyov
2021-10-04 17:03 ` [PATCH v3 00/14] Modular Broadcom irqchip drivers Florian Fainelli
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