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GIC600 erratum 2384374 is a Category B erratum. Part 1 is fixed in this patch, and the Part 1 failure mode is described as 'If the packet to be sent is a SET packet, then a higher priority SET may not be sent when it should be until an unblocking event occurs.' This is handled by calling gicv3_apply_errata_wa_2384374() in the ehf_deactivate_priority() path, so that when EHF restores the priority to the original priority, the interrupt packet buffered in the GIC can be sent. gicv3_apply_errata_wa_2384374() is the workaround for the Part 2 of erratum 2384374 which flush packets from the GIC buffer and is being used in this patch. SDEN can be found here: https://developer.arm.com/documentation/sden892601/latest/ Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com> Change-Id: I4bb6dcf86c94125cbc574e0dc5119abe43e84731 |
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