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| author | Joerg Roedel <joro@8bytes.org> | 2013-02-04 13:00:01 (GMT) |
|---|---|---|
| committer | Emil Medve <Emilian.Medve@Freescale.com> | 2013-03-21 18:42:01 (GMT) |
| commit | 10e82aa4d5de222f4696385ec89bdcd56ddc5f84 (patch) | |
| tree | 60cd2c7ca254bad49dbadb28d054a5bbab8b6fb0 /include | |
| parent | f2197448167ee53ccb75d49aa25f4665feee27ca (diff) | |
| download | linux-fsl-qoriq-10e82aa4d5de222f4696385ec89bdcd56ddc5f84.tar.xz | |
iommu: Add DOMAIN_ATTR_WINDOWS domain attribute
This attribute can be used to set and get the number of
subwindows on IOMMUs that are window-based.
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iommu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 5ea3d72..ba3b8a9 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -60,6 +60,7 @@ struct iommu_domain { enum iommu_attr { DOMAIN_ATTR_GEOMETRY, DOMAIN_ATTR_PAGING, + DOMAIN_ATTR_WINDOWS, DOMAIN_ATTR_MAX, }; @@ -106,6 +107,10 @@ struct iommu_ops { int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr, phys_addr_t paddr, u64 size); void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr); + /* Set the numer of window per domain */ + int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count); + /* Get the numer of window per domain */ + u32 (*domain_get_windows)(struct iommu_domain *domain); unsigned long pgsize_bitmap; }; |