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Message-ID: <5614C5C6.5090207@arm.com> Date: Wed, 07 Oct 2015 08:12:06 +0100 From: Marc Zyngier <marc.zyngier@....com> To: Duc Dang <dhdang@....com>, Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>, Jason Cooper <jason@...edaemon.net>, Thomas Gleixner <tglx@...utronix.de> CC: linux-kernel@...r.kernel.org, linux-arm <linux-arm-kernel@...ts.infradead.org>, patches@....com Subject: Re: [PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum On 06/10/15 23:32, Duc Dang wrote: > APM X-Gene GICv2m implementation has an erratum where the > MSI data needs to be the offset from the spi_start in order to > trigger the correct MSI interrupt. This is different from the > standard GICv2m implementation where the MSI data is the absolute > value within the range from spi_start to (spi_start + num_spis) > of each v2m frame. > > This patch reads MSI_IIDR register (present in all GICv2m > implementations) to identify X-Gene GICv2m implementation and > apply workaround to change the data portion of MSI vector. > > Signed-off-by: Duc Dang <dhdang@....com> Reviewed-by: Marc Zyngier <marc.zyngier@....com> M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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