[PATCH v8 5/8] iommu/vt-d: Make domain attach helpers to be extern

Yi Liu
2023-10-26T04:43:20Z

This makes the helpers visible to nested.c.

Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
drivers/iommu/intel/iommu.c | 15 ++++++---------
drivers/iommu/intel/iommu.h | 7 +++++++
2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index cb64759b3d95..292baa64188b 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -282,7 +282,6 @@ static LIST_HEAD(dmar_satc_units);
#define for_each_rmrr_units(rmrr) \
list_for_each_entry(rmrr, &dmar_rmrr_units, list)

-static void device_block_translation(struct device *dev);
static void intel_iommu_domain_free(struct iommu_domain *domain);

int dmar_disabled = !IS_ENABLED(CONFIG_INTEL_IOMMU_DEFAULT_ON);
@@ -561,7 +560,7 @@ static unsigned long domain_super_pgsize_bitmap(struct dmar_domain *domain)
}

/* Some capabilities may be different across iommus */
-static void domain_update_iommu_cap(struct dmar_domain *domain)
+void domain_update_iommu_cap(struct dmar_domain *domain)
{
domain_update_iommu_coherency(domain);
domain->iommu_superpage = domain_update_iommu_superpage(domain, NULL);
@@ -1779,8 +1778,7 @@ static struct dmar_domain *alloc_domain(unsigned int type)
return domain;
}

-static int domain_attach_iommu(struct dmar_domain *domain,
- struct intel_iommu *iommu)
+int domain_attach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu)
{
struct iommu_domain_info *info, *curr;
unsigned long ndomains;
@@ -1829,8 +1827,7 @@ static int domain_attach_iommu(struct dmar_domain *domain,
return ret;
}

-static void domain_detach_iommu(struct dmar_domain *domain,
- struct intel_iommu *iommu)
+void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu)
{
struct iommu_domain_info *info;

@@ -3975,7 +3972,7 @@ static void dmar_remove_one_dev_info(struct device *dev)
* all DMA requests without PASID from the device are blocked. If the page
* table has been set, clean up the data structures.
*/
-static void device_block_translation(struct device *dev)
+void device_block_translation(struct device *dev)
{
struct device_domain_info *info = dev_iommu_priv_get(dev);
struct intel_iommu *iommu = info->iommu;
@@ -4128,8 +4125,8 @@ static void intel_iommu_domain_free(struct iommu_domain *domain)
domain_exit(to_dmar_domain(domain));
}

-static int prepare_domain_attach_device(struct iommu_domain *domain,
- struct device *dev)
+int prepare_domain_attach_device(struct iommu_domain *domain,
+ struct device *dev)
{
struct dmar_domain *dmar_domain = to_dmar_domain(domain);
struct intel_iommu *iommu;
diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h
index f59a9374f62d..6a97711f947a 100644
--- a/drivers/iommu/intel/iommu.h
+++ b/drivers/iommu/intel/iommu.h
@@ -878,6 +878,13 @@ int qi_submit_sync(struct intel_iommu *iommu, struct qi_desc *desc,
*/
#define QI_OPT_WAIT_DRAIN BIT(0)

+int domain_attach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu);
+void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu);
+void device_block_translation(struct device *dev);
+int prepare_domain_attach_device(struct iommu_domain *domain,
+ struct device *dev);
+void domain_update_iommu_cap(struct dmar_domain *domain);
+
int dmar_ir_support(void);

void *alloc_pgtable_page(int node, gfp_t gfp);
--
2.34.1