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Date: Thu, 17 Mar 2016 18:02:17 -0400
From: Sinan Kaya <okaya@...eaurora.org>
To: linux-arm-kernel@...ts.infradead.org, timur@...eaurora.org,
cov@...eaurora.org, nwatters@...eaurora.org
Cc: Sinan Kaya <okaya@...eaurora.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Tony Luck <tony.luck@...el.com>,
Fenghua Yu <fenghua.yu@...el.com>,
Ralf Baechle <ralf@...ux-mips.org>,
Chris Metcalf <cmetcalf@...hip.com>,
Guan Xuetao <gxt@...c.pku.edu.cn>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
Chris Zankel <chris@...kel.net>,
Max Filippov <jcmvbkbc@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Joe Perches <joe@...ches.com>,
"Suthikulpanit, Suravee" <Suravee.Suthikulpanit@....com>,
Robin Murphy <robin.murphy@....com>,
Arnd Bergmann <arnd@...db.de>,
Valentin Rothberg <valentinrothberg@...il.com>,
Guenter Roeck <linux@...ck-us.net>,
Florian Fainelli <f.fainelli@...il.com>,
Denys Vlasenko <dvlasenk@...hat.com>,
Akinobu Mita <akinobu.mita@...il.com>,
Zhen Lei <thunder.leizhen@...wei.com>,
Geliang Tang <geliangtang@....com>,
linux-kernel@...r.kernel.org, linux-ia64@...r.kernel.org,
linux-mips@...ux-mips.org, linux-xtensa@...ux-xtensa.org
Subject: [PATCH 3/3] dma-mapping: move swiotlb dma-phys functions to common header
Moving the default implementation of swiotlb_dma_to_phys and
swiotlb_phys_to_dma functions to dma-mapping.h so that we can get
rid of the duplicate code in multiple ARCH.
Signed-off-by: Sinan Kaya <okaya@...eaurora.org>
---
arch/arm64/include/asm/dma-mapping.h | 14 --------------
arch/ia64/include/asm/dma-mapping.h | 14 --------------
arch/mips/include/asm/mach-generic/dma-coherence.h | 16 ----------------
arch/tile/include/asm/dma-mapping.h | 14 --------------
arch/unicore32/include/asm/dma-mapping.h | 14 --------------
arch/x86/include/asm/dma-mapping.h | 13 -------------
arch/xtensa/include/asm/dma-mapping.h | 14 --------------
include/linux/dma-mapping.h | 14 ++++++++++++++
8 files changed, 14 insertions(+), 99 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 39f21e8..5654357 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -64,20 +64,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
return dev->archdata.dma_coherent;
}
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return (dma_addr_t)paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t dev_addr)
-{
- return (phys_addr_t)dev_addr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index a8736b9..e6dd1f7 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -33,20 +33,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return addr + size - 1 <= *dev->dma_mask;
}
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-
static inline void
dma_cache_sync (struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 54fde22..7bb5de0 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -58,20 +58,4 @@ static inline void plat_post_dma_flush(struct device *dev)
}
#endif
-#ifdef CONFIG_SWIOTLB
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-#endif
-
#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 87c205a..c9cc14e 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -47,20 +47,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
dev->archdata.dma_offset = off;
}
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-
static inline void dma_mark_clean(void *addr, size_t size) {}
static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 762cdd8..c629aa5 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -36,20 +36,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return 1;
}
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-
static inline void dma_mark_clean(void *addr, size_t size) {}
static inline void dma_cache_sync(struct device *dev, void *vaddr,
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index be8b76e..fd5c7de 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -71,19 +71,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return addr + size - 1 <= *dev->dma_mask;
}
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
#endif /* CONFIG_X86_DMA_REMAP */
static inline void
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index b0d725d..4e6ff4d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -31,18 +31,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
-static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
- phys_addr_t paddr)
-{
- return (dma_addr_t)paddr;
-}
-#define swiotlb_phys_to_dma swiotlb_phys_to_dma
-
-static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
- dma_addr_t daddr)
-{
- return (phys_addr_t)daddr;
-}
-#define swiotlb_dma_to_phys swiotlb_dma_to_phys
-
#endif /* _XTENSA_DMA_MAPPING_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 728ef07..871d620 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -683,4 +683,18 @@ static inline int dma_mmap_writecombine(struct device *dev,
#define dma_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
#endif
+#ifndef swiotlb_phys_to_dma
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+ return paddr;
+}
+#endif
+
+#ifndef swiotlb_dma_to_phys
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+ return daddr;
+}
+#endif
+
#endif
--
1.8.2.1
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