linux-kernel - Re: [Devel] [PATCH v4 2/2] acpi, gicv3-its, numa: Adding numa node mapping for gic-its units

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Message-ID: <76d94864-d121-1d7a-bc23-00ac57cd7fb2@arm.com>
Date:   Mon, 26 Jun 2017 18:43:47 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Robert Richter <rric@...nel.org>
Cc:     Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>,
        linux-acpi@...r.kernel.org, devel@...ica.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        lorenzo.pieralisi@....com, jason@...edaemon.net,
        catalin.marinas@....com, jnair@...iumnetworks.com,
        will.deacon@....com, tglx@...utronix.de
Subject: Re: [Devel] [PATCH v4 2/2] acpi, gicv3-its, numa: Adding numa node
 mapping for gic-its units

On 26/06/17 18:38, Robert Richter wrote:
> On 22.06.17 15:49:25, Marc Zyngier wrote:
>> On 22/06/17 07:10, Ganapatrao Kulkarni wrote:
>>> Add code to parse SRAT ITS Affinity sub table as defined in ACPI 6.2.
>>> Later in per device probe, ITS devices are mapped to numa node using
>>> ITS Id to proximity domain mapping.
>>>
>>> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
>>> ---
>>>  drivers/irqchip/irq-gic-v3-its.c | 75 +++++++++++++++++++++++++++++++++++++++-
>>>  1 file changed, 74 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
>>> index 45ea1933..1c21e01 100644
>>> --- a/drivers/irqchip/irq-gic-v3-its.c
>>> +++ b/drivers/irqchip/irq-gic-v3-its.c
>>> @@ -1833,6 +1833,77 @@ static int __init its_of_probe(struct device_node *node)
>>>  
>>>  #define ACPI_GICV3_ITS_MEM_SIZE (SZ_128K)
>>>  
>>> +#ifdef CONFIG_ACPI_NUMA
>>
>> So given that there is a dependency issue between the irqchip and apcica
>> trees, I plan on taking this patch with the following change:
>>
>> #if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170531)
> 
> The struct name was changed :/
> 
>  s/acpi_srat_its_affinity/acpi_srat_gic_its_affinity/
> 
> You need to update this too.

I changed it when I applied the patch. See

https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?h=irq/irqchip-4.13&id=dbd2b826723319eb6e4bee5214f8901e336c06be

Which is also in tip/irq/core.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...