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iommu/omap: announce supported page sizes

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Let the IOMMU core know we support 4KiB, 64KiB, 1MiB and 16MiB page sizes.

This way the IOMMU core can split any arbitrary-sized physically
contiguous regions (that it needs to map) as needed.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Ohad Ben-Cohen 2011-11-10 11:32:27 +02:00 committed by Joerg Roedel
parent 7d3002cc8c
commit 66bc8cf3b1
1 changed files with 4 additions and 0 deletions
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4
drivers/iommu/omap-iommu.c
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@ -33,6 +33,9 @@
(__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true); \ (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true); \
__i++) __i++)
/* bitmap of the page sizes currently supported */
#define OMAP_IOMMU_PGSIZES (SZ_4K | SZ_64K | SZ_1M | SZ_16M)
/** /**
* struct omap_iommu_domain - omap iommu domain * struct omap_iommu_domain - omap iommu domain
* @pgtable: the page table * @pgtable: the page table
@ -1207,6 +1210,7 @@ static struct iommu_ops omap_iommu_ops = {
.unmap = omap_iommu_unmap, .unmap = omap_iommu_unmap,
.iova_to_phys = omap_iommu_iova_to_phys, .iova_to_phys = omap_iommu_iova_to_phys,
.domain_has_cap = omap_iommu_domain_has_cap, .domain_has_cap = omap_iommu_domain_has_cap,
.pgsize_bitmap = OMAP_IOMMU_PGSIZES,
}; };
static int __init omap_iommu_init(void) static int __init omap_iommu_init(void)