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| author | Robin Murphy <robin.murphy@arm.com> | 2022-08-16 18:28:04 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-09-07 14:47:00 +0200 |
| commit | fa49364cd5e65797014688cba623541083b3e5b0 (patch) | |
| tree | db6fa6420c1ba8771eeb895b2a5eddcfebb583a5 /include/linux/dma-iommu.h | |
| parent | de9f8a91eb32bb79149c4fc790df3b54ae710d18 (diff) | |
| download | linux-fa49364cd5e65797014688cba623541083b3e5b0.tar.bz2 | |
iommu/dma: Move public interfaces to linux/iommu.h
The iommu-dma layer is now mostly encapsulated by iommu_dma_ops, with
only a couple more public interfaces left pertaining to MSI integration.
Since these depend on the main IOMMU API header anyway, move their
declarations there, taking the opportunity to update the half-baked
comments to proper kerneldoc along the way.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/9cd99738f52094e6bed44bfee03fa4f288d20695.1660668998.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/dma-iommu.h')
| -rw-r--r-- | include/linux/dma-iommu.h | 40 |
1 files changed, 0 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) { } |