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Groups > linux.kernel > #1241183
| From | Marc Zyngier <marc.zyngier@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum |
| Date | 2015-10-07 09:20 +0200 |
| Message-ID | <qgRb4-6e5-5@gated-at.bofh.it> (permalink) |
| References | <qfv2X-33F-13@gated-at.bofh.it> <qgJ3Q-2UE-9@gated-at.bofh.it> |
| Organization | ARM Ltd |
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@apm.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.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@vger.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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[PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum Duc Dang <dhdang@apm.com> - 2015-10-07 00:40 +0200
Re: [PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum Marc Zyngier <marc.zyngier@arm.com> - 2015-10-07 09:20 +0200
Re: [PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum Duc Dang <dhdang@apm.com> - 2015-10-07 20:10 +0200
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