[PATCH 13/34] dma-mapping: move dma_mark_clean to dma-direct.h

Christoph Hellwig
2018-01-12T08:42:11Z

And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
arch/arm/include/asm/dma-mapping.h | 2 --
arch/arm64/include/asm/dma-mapping.h | 4 ----
arch/ia64/Kconfig | 1 +
arch/ia64/include/asm/dma.h | 2 --
arch/mips/include/asm/dma-mapping.h | 2 --
arch/powerpc/include/asm/swiotlb.h | 2 --
arch/tile/include/asm/dma-mapping.h | 2 --
arch/unicore32/include/asm/dma-mapping.h | 2 --
arch/x86/include/asm/swiotlb.h | 2 --
include/linux/dma-direct.h | 9 +++++++++
10 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5fb1b7fbdfbe..e5d9020c9ee1 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,8 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
return dev->archdata.dma_coherent;
}

-static inline void dma_mark_clean(void *addr, size_t size) { }
-
/**
* arm_dma_alloc - allocate consistent memory for DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 400fa67d3b5a..b7847eb8a7bb 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,9 +50,5 @@ static inline bool is_device_dma_coherent(struct device *dev)
return dev->archdata.dma_coherent;
}

-static inline void dma_mark_clean(void *addr, size_t size)
-{
-}
-
#endif /* __KERNEL__ */
#endif /* __ASM_DMA_MAPPING_H */
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 49583c5a5d44..4d18fca885ee 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,7 @@ config IA64
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_VIRT_CPU_ACCOUNTING
+ select ARCH_HAS_DMA_MARK_CLEAN
select ARCH_HAS_SG_CHAIN
select VIRT_TO_BUS
select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
index 186850eec934..23604d6a2cb2 100644
--- a/arch/ia64/include/asm/dma.h
+++ b/arch/ia64/include/asm/dma.h
@@ -20,6 +20,4 @@ extern unsigned long MAX_DMA_ADDRESS;

#define free_dma(x)

-void dma_mark_clean(void *addr, size_t size);
-
#endif /* _ASM_IA64_DMA_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 676c14cfc580..886e75a383f2 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,8 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return mips_dma_map_ops;
}

-static inline void dma_mark_clean(void *addr, size_t size) {}
-
#define arch_setup_dma_ops arch_setup_dma_ops
static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
u64 size, const struct iommu_ops *iommu,
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 01d45a5fd00b..9341ee804d19 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -15,8 +15,6 @@

extern const struct dma_map_ops swiotlb_dma_ops;

-static inline void dma_mark_clean(void *addr, size_t size) {}
-
extern unsigned int ppc_swiotlb_enable;
int __init swiotlb_setup_bus_notifier(void);

diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 75b8aaa4e70b..d25fce101fc0 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,8 +44,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
dev->archdata.dma_offset = off;
}

-static inline void dma_mark_clean(void *addr, size_t size) {}
-
#define HAVE_ARCH_DMA_SET_MASK 1
int dma_set_mask(struct device *dev, u64 mask);

diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 5cb250bf2d8c..f2bfec273aa7 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,7 +25,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return &swiotlb_dma_map_ops;
}

-static inline void dma_mark_clean(void *addr, size_t size) {}
-
#endif /* __KERNEL__ */
#endif
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index bdf9aed40403..1c6a6cb230ff 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -28,8 +28,6 @@ static inline void pci_swiotlb_late_init(void)
}
#endif

-static inline void dma_mark_clean(void *addr, size_t size) {}
-
extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
unsigned long attrs);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 2cc1b6558944..10e924b7cba7 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -29,4 +29,13 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return addr + size - 1 <= *dev->dma_mask;
}
#endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+
+#ifdef CONFIG_ARCH_HAS_DMA_MARK_CLEAN
+void dma_mark_clean(void *addr, size_t size);
+#else
+static inline void dma_mark_clean(void *addr, size_t size)
+{
+}
+#endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
+
#endif /* _LINUX_DMA_DIRECT_H */
--
2.14.2