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authorJean-Philippe Brucker <jean-philippe@linaro.org>2021-04-01 18:47:11 +0300
committerJoerg Roedel <jroedel@suse.de>2021-04-07 11:54:28 +0300
commit434b73e61cc65cdd26618af6fa4736c2ba1eb29b (patch)
tree5399a66c1276f4f68215229084db299bc9320400 /include/linux/iommu.h
parent0d35309ab5e080095190965aa7cfc3ca8fb88af9 (diff)
downloadlinux-434b73e61cc65cdd26618af6fa4736c2ba1eb29b.tar.xz
iommu/arm-smmu-v3: Use device properties for pasid-num-bits
The pasid-num-bits property shouldn't need a dedicated fwspec field, it's a job for device properties. Add properties for IORT, and access the number of PASID bits using device_property_read_u32(). Suggested-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Hanjun Guo <guohanjun@huawei.com> Link: https://lore.kernel.org/r/20210401154718.307519-3-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 1d422bf722a1..16ce75693d83 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -572,7 +572,6 @@ struct iommu_group *fsl_mc_device_group(struct device *dev);
* @ops: ops for this device's IOMMU
* @iommu_fwnode: firmware handle for this device's IOMMU
* @flags: IOMMU_FWSPEC_* flags
- * @num_pasid_bits: number of PASID bits supported by this device
* @num_ids: number of associated device IDs
* @ids: IDs which this device may present to the IOMMU
*/
@@ -580,7 +579,6 @@ struct iommu_fwspec {
const struct iommu_ops *ops;
struct fwnode_handle *iommu_fwnode;
u32 flags;
- u32 num_pasid_bits;
unsigned int num_ids;
u32 ids[];
};