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authorHanjun Guo <hanjun.guo@linaro.org>2017-10-13 15:09:49 +0800
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2017-10-16 14:30:05 +0100
commit86456a3f19c505049341eeb51cf9bb874d3b4752 (patch)
treed8a7ab1653fbba1dd617d93f3ae197a2d5773908 /drivers/ata
parent8c8df8dcd69ea65cedb4d0b19c34a38c9fb68466 (diff)
downloadlinux-next-86456a3f19c505049341eeb51cf9bb874d3b4752.tar.gz
ACPI/IORT: Add SMMUv3 specific special index mapping handling
IORT revision C introduced a mapping entry binding to describe ITS device ID mapping for SMMUv3 MSI interrupts. Enable the single mapping flag (ie that is used by SMMUv3 component for its special index mappings) for the SMMUv3 node in the IORT mapping API and add IORT code to handle special index mapping entry for the SMMUv3 IORT nodes to enable their MSI interrupts. In case the ACPICA for SMMUv3 device ID mapping is not ready, use the ACPICA version as a guard for function iort_get_id_mapping_index(). Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> [lorenzo.pieralisi@arm.com: patch split, typos fixing, rewrote the log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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