Failed to boot ARM64 boards for recent linux-next

[John Garry]

On 20/03/2018 16:06, Marc Zyngier wrote:
> Hi John,
>
> On 20/03/18 15:52, John Garry wrote:
>> On 20/03/2018 13:34, Marc Zyngier wrote:
>>> On 20/03/18 10:13, JeffyChen wrote:
>>>> Hi Shawn,
>>>>
>>>> On 03/20/2018 05:39 PM, Shawn Lin wrote:
>>>>>
>>>>>
>>>>> Also another patch warns a lot when booting the kernel. Is there
>>>>> anything else I could do to let it go? Seems I am using broken
>>>>> dts for requesting IRQ_TYPE_NONE there?
>>>>
>>>> could be:
>>>> https://github.com/torvalds/linux/blob/master/drivers/irqchip/irq-gic-v3.c#L1145
>>>>
>>>> 		struct irq_fwspec ppi_fwspec = {
>>>> 			.fwnode		= gic_data.fwnode,
>>>> 			.param_count	= 3,
>>>> 			.param		= {
>>>> 				[0]	= 1,
>>>> 				[1]	= i,
>>>> 				[2]	= IRQ_TYPE_NONE, <--
>>>> 			},
>>>> 		};
>>>>
>>>> 		irq = irq_create_fwspec_mapping(&ppi_fwspec);
>>>
>>> Probably is. Caught at my own game, fun! ;-)
>>>
>>> Turning that NONE into LEVEL will work, as there is no known PPIs
>>> configured as edge (specially in a partitioned system), but the general
>>> case isn't pretty. I'll queue a workaround for now, and will look at
>>> addressing the more general issue.
>>>
>>
>> JFYI, reverting the original patch mentioned by Shawn resolved the boot
>> hang I was seeing on my Huawei D03. My D05 was fine without the revert.
>
> I guess your D05 doesn't set SCR_EL3.FIQ, meaning that no Group-0
> interrupts can reach the firmware. Hopefully it doesn't need them.
>
> Would you mind testing the last patch I posted earlier today[1]?
>

Hi Marc,

Yes, [1] allows my D03 to boot. D05 is still ok.

If you're going to send this same patch to the list then feel free to add:
Tested-by: John Garry <john.garry at huawei.com>

Cheers,
John

> Thanks,
>
> 	M.
>
> [1] https://www.spinics.net/lists/arm-kernel/msg642440.html
>