diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2022-02-16 10:52:45 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-02-28 13:25:48 +0100 |
| commit | 71fe30698dc3be6fd277c49c0c7b220c7ae92ffd (patch) | |
| tree | 620388991b0c8764cd68226f3dc32d21dff87a22 | |
| parent | 8652d875939b6a1fe6d5c93cf4fb91df61cda5a7 (diff) | |
iommu: Remove apply_resv_region
The apply_resv_region callback in iommu_ops was introduced to reserve an
IOVA range in the given DMA domain when the IOMMU driver manages the IOVA
by itself. As all drivers converted to use dma-iommu in the core, there's
no driver using this anymore. Remove it to avoid dead code.
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220216025249.3459465-6-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/iommu.c | 3 | ||||
| -rw-r--r-- | include/linux/iommu.h | 4 |
2 files changed, 0 insertions, 7 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 0ebaf561a70e..7cf073c56036 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -790,9 +790,6 @@ static int iommu_create_device_direct_mappings(struct iommu_group *group, dma_addr_t start, end, addr; size_t map_size = 0; - if (domain->ops->apply_resv_region) - domain->ops->apply_resv_region(dev, domain, entry); - start = ALIGN(entry->start, pg_size); end = ALIGN(entry->start + entry->length, pg_size); diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 9983a01373b2..9ffa2e88f3d0 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -214,7 +214,6 @@ struct iommu_iotlb_gather { * @set_pgtable_quirks: Set io page table quirks (IO_PGTABLE_QUIRK_*) * @get_resv_regions: Request list of reserved regions for a device * @put_resv_regions: Free list of reserved regions for a device - * @apply_resv_region: Temporary helper call-back for iova reserved ranges * @of_xlate: add OF master IDs to iommu grouping * @is_attach_deferred: Check if domain attach should be deferred from iommu * driver init to device driver init (default no) @@ -268,9 +267,6 @@ struct iommu_ops { /* Request/Free a list of reserved regions for a device */ void (*get_resv_regions)(struct device *dev, struct list_head *list); void (*put_resv_regions)(struct device *dev, struct list_head *list); - void (*apply_resv_region)(struct device *dev, - struct iommu_domain *domain, - struct iommu_resv_region *region); int (*of_xlate)(struct device *dev, struct of_phandle_args *args); bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev); |