Re: [PATCH v3 08/16] irqchip/gic: Configure SGIs as standard interrupts

Marc Zyngier
2020-09-14T13:21:24Z

Hi Marek,

On 2020-09-14 14:06, Marek Szyprowski wrote:
> Hi Marc,
>
> On 01.09.2020 16:43, Marc Zyngier wrote:
>> Change the way we deal with GIC SGIs by turning them into proper
>> IRQs, and calling into the arch code to register the interrupt range
>> instead of a callback.
>>
>> Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
>> Signed-off-by: Marc Zyngier <maz@kernel.org>
> This patch landed in linux next-20200914 as commit ac063232d4b0
> ("irqchip/gic: Configure SGIs as standard interrupts"). Sadly it breaks
> booting of all Samsung Exynos 4210/4412 based boards (dual/quad ARM
> Cortex A9 based). Here are the last lines from the bootlog:
>
> [    0.106322] CPU: Testing write buffer coherency: ok
> [    0.109895] CPU0: Spectre v2: using BPIALL workaround
> [    0.116057] CPU0: thread -1, cpu 0, socket 9, mpidr 80000900
> [    0.123885] Setting up static identity map for 0x40100000 -
> 0x40100060
> [    0.130191] rcu: Hierarchical SRCU implementation.
> [    0.137195] soc soc0: Exynos: CPU[EXYNOS4210] PRO_ID[0x43210211]
> REV[0x11] Detected
> [    0.145129] smp: Bringing up secondary CPUs ...
> [    0.156279] CPU1: thread -1, cpu 1, socket 9, mpidr 80000901
> [    0.156291] CPU1: Spectre v2: using BPIALL workaround
> [    2.716379] random: fast init done

Thanks for the report. Is this the funky non-banked GIC?

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