diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2020-12-15 01:36:58 -0600 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-01-28 16:51:17 +0100 |
| commit | 18954252a1d0b12e1b77087b55c37fb43b09e12a (patch) | |
| tree | 93718f36eb23c206f852dc04d9885be794a37b92 /drivers/iommu/amd/amd_iommu.h | |
| parent | f9b4df790aa4372bfa11b7d212e537b763295429 (diff) | |
iommu/amd: Move IO page table related functions
Preparing to migrate to use IO page table framework.
There is no functional change.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20201215073705.123786-7-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/amd_iommu.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index bf29ab8c99f0..1bad42a3c73c 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -131,4 +131,22 @@ void amd_iommu_apply_ivrs_quirks(void); static inline void amd_iommu_apply_ivrs_quirks(void) { } #endif +/* TODO: These are temporary and will be removed once fully transition */ +extern void free_pagetable(struct domain_pgtable *pgtable); +extern int iommu_map_page(struct protection_domain *dom, + unsigned long bus_addr, + unsigned long phys_addr, + unsigned long page_size, + int prot, + gfp_t gfp); +extern unsigned long iommu_unmap_page(struct protection_domain *dom, + unsigned long bus_addr, + unsigned long page_size); +extern u64 *fetch_pte(struct protection_domain *domain, + unsigned long address, + unsigned long *page_size); +extern void amd_iommu_domain_get_pgtable(struct protection_domain *domain, + struct domain_pgtable *pgtable); +extern void amd_iommu_domain_set_pgtable(struct protection_domain *domain, + u64 *root, int mode); #endif |