[PATCH v7 2/3] iommu/vt-d: Make iotlb flush helpers to be extern

Yi Liu
2023-11-17T13:18:21Z

This makes the helpers visible to nested.c.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
---
drivers/iommu/intel/iommu.c | 10 +++++-----
drivers/iommu/intel/iommu.h | 6 ++++++
2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 3531b956556c..074b728a3e93 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -1512,10 +1512,10 @@ static void domain_flush_pasid_iotlb(struct intel_iommu *iommu,
spin_unlock_irqrestore(&domain->lock, flags);
}

-static void iommu_flush_iotlb_psi(struct intel_iommu *iommu,
- struct dmar_domain *domain,
- unsigned long pfn, unsigned int pages,
- int ih, int map)
+void iommu_flush_iotlb_psi(struct intel_iommu *iommu,
+ struct dmar_domain *domain,
+ unsigned long pfn, unsigned int pages,
+ int ih, int map)
{
unsigned int aligned_pages = __roundup_pow_of_two(pages);
unsigned int mask = ilog2(aligned_pages);
@@ -1588,7 +1588,7 @@ static inline void __mapping_notify_one(struct intel_iommu *iommu,
iommu_flush_write_buffer(iommu);
}

-static void intel_flush_iotlb_all(struct iommu_domain *domain)
+void intel_flush_iotlb_all(struct iommu_domain *domain)
{
struct dmar_domain *dmar_domain = to_dmar_domain(domain);
struct iommu_domain_info *info;
diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h
index 65d37a138c75..4b779d5f7215 100644
--- a/drivers/iommu/intel/iommu.h
+++ b/drivers/iommu/intel/iommu.h
@@ -891,6 +891,12 @@ 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);
+void iommu_flush_iotlb_psi(struct intel_iommu *iommu,
+ struct dmar_domain *domain,
+ unsigned long pfn, unsigned int pages,
+ int ih, int map);
+void intel_flush_iotlb_all(struct iommu_domain *domain);
+

int dmar_ir_support(void);

--
2.34.1