MIPS: DMA: Implement platform hook to perform post-DMA cache flushes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 files changed, 32 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-ath25/dma-coherence.h b/arch/mips/include/asm/mach-ath25/dma-coherence.h
index 65084a079b60..d5defdde32db 100644
--- a/arch/mips/include/asm/mach-ath25/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ath25/dma-coherence.h
@@ -69,4 +69,8 @@ static inline int plat_device_is_coherent(struct device *dev)
 #endif
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 #endif /* __ASM_MACH_ATH25_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-bmips/dma-coherence.h b/arch/mips/include/asm/mach-bmips/dma-coherence.h
index 65e95b03ef92..509ab72725eb 100644
--- a/arch/mips/include/asm/mach-bmips/dma-coherence.h
+++ b/arch/mips/include/asm/mach-bmips/dma-coherence.h
@@ -45,4 +45,8 @@ static inline int plat_device_is_coherent(struct device *dev)
 	return 0;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 #endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index f9f448650505..460042ee5d6f 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -57,6 +57,10 @@ static inline int plat_device_is_coherent(struct device *dev)
 	return 1;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 7629c35986f7..671330928e67 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -52,6 +52,10 @@ static inline int plat_device_is_coherent(struct device *dev)
 	return coherentio;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 #ifdef CONFIG_SWIOTLB
 static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h
index 4ffddfdb5062..1daa64412569 100644
--- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
@@ -58,6 +58,10 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 1;		/* IP27 non-cohernet mode is unsupported */
diff --git a/arch/mips/include/asm/mach-ip32/dma-coherence.h b/arch/mips/include/asm/mach-ip32/dma-coherence.h
index 104cfbc3ed63..0a0b0e2ced60 100644
--- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
@@ -80,6 +80,10 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;		/* IP32 is non-cohernet */
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h
index 949003ef97b3..dc347c25c343 100644
--- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
+++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
@@ -48,6 +48,10 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;
diff --git a/arch/mips/include/asm/mach-loongson/dma-coherence.h b/arch/mips/include/asm/mach-loongson/dma-coherence.h
index a90534161bd2..4bf4e19f72e8 100644
--- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
@@ -78,4 +78,8 @@ static inline int plat_device_is_coherent(struct device *dev)
 #endif /* CONFIG_DMA_NONCOHERENT */
 }
 
+static inline void plat_post_dma_flush(struct device *dev)
+{
+}
+
 #endif /* __ASM_MACH_LOONGSON_DMA_COHERENCE_H */