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Message-Id: <1249872797-1314-5-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 10 Aug 2009 11:53:13 +0900
From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To: mingo@...e.hu
Cc: davem@...emloft.net, sparclinux@...r.kernel.org,
linux-kernel@...r.kernel.org, tony.luck@...el.com,
fenghua.yu@...el.com,
FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Subject: [PATCH 4/8] sparc: use asm-generic/dma-mapping-common.h
Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Tested-by: Robert Reif <reif@...thlink.net>
Acked-by: David S. Miller <davem@...emloft.net>
---
arch/sparc/Kconfig | 1 +
arch/sparc/include/asm/dma-mapping.h | 107 ++++-----------------------------
arch/sparc/kernel/dma.c | 4 +-
arch/sparc/kernel/iommu.c | 4 +-
arch/sparc/kernel/pci_sun4v.c | 2 +-
5 files changed, 19 insertions(+), 99 deletions(-)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 3f8b6a9..5f2df99 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -25,6 +25,7 @@ config SPARC
select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS
select RTC_DRV_M48T59
+ select HAVE_DMA_ATTRS
config SPARC32
def_bool !64BIT
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 893f3ec..34c9226 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
#include <linux/scatterlist.h>
#include <linux/mm.h>
+#include <linux/dma-debug.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
@@ -13,113 +14,31 @@ extern int dma_set_mask(struct device *dev, u64 dma_mask);
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
#define dma_is_consistent(d, h) (1)
-extern const struct dma_map_ops *dma_ops;
+extern struct dma_map_ops *dma_ops;
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag)
-{
- return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
- void *cpu_addr, dma_addr_t dma_handle)
-{
- dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
-static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
- size_t size,
- enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
- return dma_ops->map_page(dev, virt_to_page(cpu_addr),
- (unsigned long)cpu_addr & ~PAGE_MASK, size,
- direction, NULL);
+ return dma_ops;
}
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
- size_t size,
- enum dma_data_direction direction)
-{
- dma_ops->unmap_page(dev, dma_addr, size, direction, NULL);
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- return dma_ops->map_page(dev, page, offset, size, direction, NULL);
-}
+#include <asm-generic/dma-mapping-common.h>
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
- size_t size,
- enum dma_data_direction direction)
-{
- dma_ops->unmap_page(dev, dma_address, size, direction, NULL);
-}
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction)
-{
- return dma_ops->map_sg(dev, sg, nents, direction, NULL);
-}
-
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction)
-{
- dma_ops->unmap_sg(dev, sg, nents, direction, NULL);
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev,
- dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction)
-{
- dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction);
-}
-
-static inline void dma_sync_single_for_device(struct device *dev,
- dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction direction)
-{
- if (dma_ops->sync_single_for_device)
- dma_ops->sync_single_for_device(dev, dma_handle, size,
- direction);
-}
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
- struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag)
{
- dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction);
-}
+ struct dma_map_ops *ops = get_dma_ops(dev);
-static inline void dma_sync_sg_for_device(struct device *dev,
- struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
-{
- if (dma_ops->sync_sg_for_device)
- dma_ops->sync_sg_for_device(dev, sg, nelems, direction);
+ return ops->alloc_coherent(dev, size, dma_handle, flag);
}
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
- dma_addr_t dma_handle,
- unsigned long offset,
- size_t size,
- enum dma_data_direction dir)
+static inline void dma_free_coherent(struct device *dev, size_t size,
+ void *cpu_addr, dma_addr_t dma_handle)
{
- dma_sync_single_for_cpu(dev, dma_handle+offset, size, dir);
-}
+ struct dma_map_ops *ops = get_dma_ops(dev);
-static inline void dma_sync_single_range_for_device(struct device *dev,
- dma_addr_t dma_handle,
- unsigned long offset,
- size_t size,
- enum dma_data_direction dir)
-{
- dma_sync_single_for_device(dev, dma_handle+offset, size, dir);
+ ops->free_coherent(dev, size, cpu_addr, dma_handle);
}
-
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return (dma_addr == DMA_ERROR_CODE);
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
index 473a3fc..15820a9 100644
--- a/arch/sparc/kernel/dma.c
+++ b/arch/sparc/kernel/dma.c
@@ -165,7 +165,7 @@ static void dma32_sync_sg_for_device(struct device *dev,
BUG();
}
-static const struct dma_map_ops dma32_dma_ops = {
+static struct dma_map_ops dma32_dma_ops = {
.alloc_coherent = dma32_alloc_coherent,
.free_coherent = dma32_free_coherent,
.map_page = dma32_map_page,
@@ -178,5 +178,5 @@ static const struct dma_map_ops dma32_dma_ops = {
.sync_sg_for_device = dma32_sync_sg_for_device,
};
-const struct dma_map_ops *dma_ops = &dma32_dma_ops;
+struct dma_map_ops *dma_ops = &dma32_dma_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index a9f0ad9..74b289c 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -826,7 +826,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-static const struct dma_map_ops sun4u_dma_ops = {
+static struct dma_map_ops sun4u_dma_ops = {
.alloc_coherent = dma_4u_alloc_coherent,
.free_coherent = dma_4u_free_coherent,
.map_page = dma_4u_map_page,
@@ -837,7 +837,7 @@ static const struct dma_map_ops sun4u_dma_ops = {
.sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
};
-const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
+struct dma_map_ops *dma_ops = &sun4u_dma_ops;
EXPORT_SYMBOL(dma_ops);
int dma_supported(struct device *dev, u64 device_mask)
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index c4f7dce..ee800f9 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -539,7 +539,7 @@ static void dma_4v_sync_sg_for_cpu(struct device *dev,
/* Nothing to do... */
}
-static const struct dma_map_ops sun4v_dma_ops = {
+static struct dma_map_ops sun4v_dma_ops = {
.alloc_coherent = dma_4v_alloc_coherent,
.free_coherent = dma_4v_free_coherent,
.map_page = dma_4v_map_page,
--
1.6.0.6
--
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