From: Wei Xu <xuwei5@hisilicon.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: salil.mehta@huawei.com, jinying@hisilicon.com,
tangkunshan@huawei.com, liguozhu@hisilicon.com,
Linus Walleij <linus.walleij@linaro.org>,
John Garry <john.garry@huawei.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
shameerali.kolothum.thodi@huawei.com,
Linuxarm <linuxarm@huawei.com>,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
huangdaode <huangdaode@hisilicon.com>,
Jonathan Cameron <jonathan.cameron@huawei.com>,
shiju.jose@huawei.com,
Mika Westerberg <mika.westerberg@linux.intel.com>,
zhangyi.ac@huawei.com,
linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
Len Brown <lenb@kernel.org>
Subject: Re: [PATCH v2] gpio: pl061: Fix the issue failed to register the ACPI interrtupion
Date: Mon, 19 Aug 2019 20:59:47 +0800 [thread overview]
Message-ID: <5D5A9D43.4040508@hisilicon.com> (raw)
In-Reply-To: <CAHp75VfjE4V7yY1b3JYd_Mk9-8RTok2WCN=-MMrUBw5NN90o2A@mail.gmail.com>
Hi Andy,
Thanks!
On 2019/8/16 21:40, Andy Shevchenko wrote:
> On Fri, Aug 16, 2019 at 12:07 PM Wei Xu <xuwei5@hisilicon.com> wrote:
>> Invoke acpi_gpiochip_request_interrupts after the acpi data has been
>> attached to the pl061 acpi node to register interruption.
>>
>> Otherwise it will be failed to register interruption for the ACPI case.
>> Because in the gpiochip_add_data_with_key, acpi_gpiochip_add is invoked
>> after gpiochip_add_irqchip but at that time the acpi data has not been
>> attached yet.
>> 2. cat /proc/interrupts in the guest console:
>>
>> estuary:/$ cat /proc/interrupts
>> CPU0
>> 2: 3228 GICv3 27 Level arch_timer
>> 4: 15 GICv3 33 Level uart-pl011
>> 42: 0 GICv3 23 Level arm-pmu
>> IPI0: 0 Rescheduling interrupts
>> IPI1: 0 Function call interrupts
>> IPI2: 0 CPU stop interrupts
>> IPI3: 0 CPU stop (for crash dump) interrupts
>> IPI4: 0 Timer broadcast interrupts
>> IPI5: 0 IRQ work interrupts
>> IPI6: 0 CPU wake-up interrupts
>> Err: 0
>>
>> But on QEMU v3.0.0 and Linux kernel v5.2.0-rc7, pl061 interruption is
>> there as below:
>>
>> estuary:/$ cat /proc/interrupts
>> CPU0
>> 2: 2648 GICv3 27 Level arch_timer
>> 4: 12 GICv3 33 Level uart-pl011
>> 42: 0 GICv3 23 Level arm-pmu
>> 43: 0 ARMH0061:00 3 Edge ACPI:Event
>> IPI0: 0 Rescheduling interrupts
>> IPI1: 0 Function call interrupts
>> IPI2: 0 CPU stop interrupts
>> IPI3: 0 CPU stop (for crash dump) interrupts
>> IPI4: 0 Timer broadcast interrupts
>> IPI5: 0 IRQ work interrupts
>> IPI6: 0 CPU wake-up interrupts
>> Err: 0
> In above show only affected line.
OK. Will update it in v3.
>> And the whole dmesg log on Linux kernel v5.2.0-rc7 is as below:
> NO!
> Please, remove this huge noise!
Sorry for the noise!
I will drop it in v3.
Best Regards,
Wei
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next prev parent reply other threads:[~2019-08-19 13:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-16 9:05 [PATCH v2] gpio: pl061: Fix the issue failed to register the ACPI interrtupion Wei Xu
2019-08-16 13:40 ` Andy Shevchenko
2019-08-19 12:59 ` Wei Xu [this message]
2019-08-18 12:58 ` kbuild test robot
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