[PATCH v2 1/1] irqchip/GICv2m: Add workaround for APM X-Gene GICv2m erratum

Marc Zyngier marc.zyngier at arm.com
Wed Oct 7 00:12:06 PDT 2015

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 at apm.com>

Reviewed-by: Marc Zyngier <marc.zyngier at arm.com>

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

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