Re: [Xen-devel] [RFC PATCH v1 06/10] xen/arm: split gic driver into generic and gicv2 driver

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 03/21/2014 05:32 PM, Ian Campbell wrote:
> On Thu, 2014-03-20 at 16:02 +0000, Julien Grall wrote:
>> Hello Vijay,
>>
>> Thanks for the patch.
>>
>> On 03/19/2014 02:17 PM, vijay.kilari@xxxxxxxxx wrote:
>>> From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>
>>>
>>> Existing GIC driver has both generic code and hw specific
>>> code. Segregate GIC low level driver into gic-v2.c and
>>> keep generic code in existing gic.c file
>>>
>>> GIC v2 driver registers required functions
>>> to generic GIC driver. This helps to plug in next version
>>> of GIC drivers like GIC v3.
>>>
>>> Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>
>>> ---
>>
>> [..]
>>
>>> +
>>> +void __init gicv2_init(void)
>>> +{
>>
>> Instead of calling gicv2_init and gicv3_init from generic, it would be
>> better to the device API (see xen/include/asm-arm/device.h). An example
>> of use is my iommu series (see https://patches.linaro.org/26032/
>> iommu_hardware_setup).
> 
> Is that usable for something needed as soon as interrupt controller
> setup?

As soon as the device tree is parsed, the "device API" can be used :).

Regards,

-- 
Julien Grall

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