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-rw-r--r--include/linux/dma-iommu.h40
-rw-r--r--include/linux/iommu.h36
2 files changed, 36 insertions, 40 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index 24607dc3c2ac..e83de4f1f3d6 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -15,27 +15,10 @@
/* Domain management interface for IOMMU drivers */
int iommu_get_dma_cookie(struct iommu_domain *domain);
-int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base);
void iommu_put_dma_cookie(struct iommu_domain *domain);
-/* Setup call for arch DMA mapping code */
-void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit);
int iommu_dma_init_fq(struct iommu_domain *domain);
-/* The DMA API isn't _quite_ the whole story, though... */
-/*
- * iommu_dma_prepare_msi() - Map the MSI page in the IOMMU device
- *
- * The MSI page will be stored in @desc.
- *
- * Return: 0 on success otherwise an error describing the failure.
- */
-int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr);
-
-/* Update the MSI message if required. */
-void iommu_dma_compose_msi_msg(struct msi_desc *desc,
- struct msi_msg *msg);
-
void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
void iommu_dma_free_cpu_cached_iovas(unsigned int cpu,
@@ -46,15 +29,8 @@ extern bool iommu_dma_forcedac;
#else /* CONFIG_IOMMU_DMA */
struct iommu_domain;
-struct msi_desc;
-struct msi_msg;
struct device;
-static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base,
- u64 dma_limit)
-{
-}
-
static inline int iommu_dma_init_fq(struct iommu_domain *domain)
{
return -EINVAL;
@@ -65,26 +41,10 @@ static inline int iommu_get_dma_cookie(struct iommu_domain *domain)
return -ENODEV;
}
-static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
-{
- return -ENODEV;
-}
-
static inline void iommu_put_dma_cookie(struct iommu_domain *domain)
{
}
-static inline int iommu_dma_prepare_msi(struct msi_desc *desc,
- phys_addr_t msi_addr)
-{
- return 0;
-}
-
-static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc,
- struct msi_msg *msg)
-{
-}
-
static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
{
}
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 35810f87ae74..a325532aeab5 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -1063,4 +1063,40 @@ void iommu_debugfs_setup(void);
static inline void iommu_debugfs_setup(void) {}
#endif
+#ifdef CONFIG_IOMMU_DMA
+#include <linux/msi.h>
+
+/* Setup call for arch DMA mapping code */
+void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit);
+
+int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base);
+
+int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr);
+void iommu_dma_compose_msi_msg(struct msi_desc *desc, struct msi_msg *msg);
+
+#else /* CONFIG_IOMMU_DMA */
+
+struct msi_desc;
+struct msi_msg;
+
+static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit)
+{
+}
+
+static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
+{
+ return -ENODEV;
+}
+
+static inline int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr)
+{
+ return 0;
+}
+
+static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc, struct msi_msg *msg)
+{
+}
+
+#endif /* CONFIG_IOMMU_DMA */
+
#endif /* __LINUX_IOMMU_H */