diff options
| author |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2016-11-21 10:01:45 +0000 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2016-11-29 15:57:47 +0000 |
| commit | d6fcd3b149f3eab3b94cc107ca846bea8461cc2f (patch) | |
| tree | e7638133b3a56ed9056de52799101177d827f26a /include/linux/acpi_iort.h | |
| parent | iommu/arm-smmu: Split probe functions into DT/generic portions (diff) | |
| download | linux-dev-d6fcd3b149f3eab3b94cc107ca846bea8461cc2f.tar.xz linux-dev-d6fcd3b149f3eab3b94cc107ca846bea8461cc2f.zip | |
iommu/arm-smmu: Add IORT configuration
In ACPI based systems, in order to be able to create platform
devices and initialize them for ARM SMMU components, the IORT
kernel implementation requires a set of static functions to be
used by the IORT kernel layer to configure platform devices for
ARM SMMU components.
Add static configuration functions to the IORT kernel layer for
the ARM SMMU components, so that the ARM SMMU driver can
initialize its respective platform device by relying on the IORT
kernel infrastructure and by adding a corresponding ACPI device
early probe section entry.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Tomasz Nowicki <tn@semihalf.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Tomasz Nowicki <tn@semihalf.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/acpi_iort.h')
| -rw-r--r-- | include/linux/acpi_iort.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index 17bb078073de..79ba1bb50950 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -23,6 +23,9 @@ #include <linux/fwnode.h> #include <linux/irqdomain.h> +#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL) +#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL) + int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node); void iort_deregister_domain_token(int trans_id); struct fwnode_handle *iort_find_domain_token(int trans_id); |