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-rw-r--r--include/linux/dma-debug.h19
-rw-r--r--include/linux/dma-mapping.h41
-rw-r--r--include/linux/dmaengine.h16
-rw-r--r--include/linux/mbus.h18
-rw-r--r--include/linux/omap-dma.h19
-rw-r--r--include/linux/platform_data/dma-mmp_tdma.h2
-rw-r--r--include/linux/platform_data/dma-s3c24xx.h6
7 files changed, 118 insertions, 3 deletions
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index fe8cb610deac..c7d844f09c3a 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -56,6 +56,13 @@ extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
extern void debug_dma_free_coherent(struct device *dev, size_t size,
void *virt, dma_addr_t addr);
+extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
+ size_t size, int direction,
+ dma_addr_t dma_addr);
+
+extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
+ size_t size, int direction);
+
extern void debug_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
int direction);
@@ -141,6 +148,18 @@ static inline void debug_dma_free_coherent(struct device *dev, size_t size,
{
}
+static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
+ size_t size, int direction,
+ dma_addr_t dma_addr)
+{
+}
+
+static inline void debug_dma_unmap_resource(struct device *dev,
+ dma_addr_t dma_addr, size_t size,
+ int direction)
+{
+}
+
static inline void debug_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index dc69df04abc1..0f90eb5e3c6b 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -95,6 +95,12 @@ struct dma_map_ops {
struct scatterlist *sg, int nents,
enum dma_data_direction dir,
unsigned long attrs);
+ dma_addr_t (*map_resource)(struct device *dev, phys_addr_t phys_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs);
+ void (*unmap_resource)(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs);
void (*sync_single_for_cpu)(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction dir);
@@ -258,6 +264,41 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
debug_dma_unmap_page(dev, addr, size, dir, false);
}
+static inline dma_addr_t dma_map_resource(struct device *dev,
+ phys_addr_t phys_addr,
+ size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+ dma_addr_t addr;
+
+ BUG_ON(!valid_dma_direction(dir));
+
+ /* Don't allow RAM to be mapped */
+ BUG_ON(pfn_valid(PHYS_PFN(phys_addr)));
+
+ addr = phys_addr;
+ if (ops->map_resource)
+ addr = ops->map_resource(dev, phys_addr, size, dir, attrs);
+
+ debug_dma_map_resource(dev, phys_addr, size, dir, addr);
+
+ return addr;
+}
+
+static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+
+ BUG_ON(!valid_dma_direction(dir));
+ if (ops->unmap_resource)
+ ops->unmap_resource(dev, addr, size, dir, attrs);
+ debug_dma_unmap_resource(dev, addr, size, dir);
+}
+
static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
size_t size,
enum dma_data_direction dir)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 30de0197263a..cc535a478bae 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -441,6 +441,21 @@ typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
typedef void (*dma_async_tx_callback)(void *dma_async_param);
+enum dmaengine_tx_result {
+ DMA_TRANS_NOERROR = 0, /* SUCCESS */
+ DMA_TRANS_READ_FAILED, /* Source DMA read failed */
+ DMA_TRANS_WRITE_FAILED, /* Destination DMA write failed */
+ DMA_TRANS_ABORTED, /* Op never submitted / aborted */
+};
+
+struct dmaengine_result {
+ enum dmaengine_tx_result result;
+ u32 residue;
+};
+
+typedef void (*dma_async_tx_callback_result)(void *dma_async_param,
+ const struct dmaengine_result *result);
+
struct dmaengine_unmap_data {
u8 map_cnt;
u8 to_cnt;
@@ -478,6 +493,7 @@ struct dma_async_tx_descriptor {
dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
int (*desc_free)(struct dma_async_tx_descriptor *tx);
dma_async_tx_callback callback;
+ dma_async_tx_callback_result callback_result;
void *callback_param;
struct dmaengine_unmap_data *unmap;
#ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index d610232762e3..2931aa43dab1 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -11,6 +11,8 @@
#ifndef __LINUX_MBUS_H
#define __LINUX_MBUS_H
+#include <linux/errno.h>
+
struct resource;
struct mbus_dram_target_info
@@ -55,6 +57,8 @@ struct mbus_dram_target_info
#ifdef CONFIG_PLAT_ORION
extern const struct mbus_dram_target_info *mv_mbus_dram_info(void);
extern const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void);
+int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target,
+ u8 *attr);
#else
static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
{
@@ -64,14 +68,24 @@ static inline const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(vo
{
return NULL;
}
+static inline int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size,
+ u8 *target, u8 *attr)
+{
+ /*
+ * On all ARM32 MVEBU platforms with MBus support, this stub
+ * function will not get called. The real function from the
+ * MBus driver is called instead. ARM64 MVEBU platforms like
+ * the Armada 3700 could use the mv_xor device driver which calls
+ * into this function
+ */
+ return -EINVAL;
+}
#endif
int mvebu_mbus_save_cpu_target(u32 __iomem *store_addr);
void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr);
-int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target,
- u8 *attr);
int mvebu_mbus_add_window_remap_by_id(unsigned int target,
unsigned int attribute,
phys_addr_t base, size_t size,
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 1d99b61adc65..290081620b3e 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -297,6 +297,7 @@ struct omap_system_dma_plat_info {
#define dma_omap15xx() __dma_omap15xx(d)
#define dma_omap16xx() __dma_omap16xx(d)
+#if defined(CONFIG_ARCH_OMAP)
extern struct omap_system_dma_plat_info *omap_get_plat_info(void);
extern void omap_set_dma_priority(int lch, int dst_port, int priority);
@@ -355,4 +356,22 @@ static inline int omap_lcd_dma_running(void)
}
#endif
+#else /* CONFIG_ARCH_OMAP */
+
+static inline struct omap_system_dma_plat_info *omap_get_plat_info(void)
+{
+ return NULL;
+}
+
+static inline int omap_request_dma(int dev_id, const char *dev_name,
+ void (*callback)(int lch, u16 ch_status, void *data),
+ void *data, int *dma_ch)
+{
+ return -ENODEV;
+}
+
+static inline void omap_free_dma(int ch) { }
+
+#endif /* CONFIG_ARCH_OMAP */
+
#endif /* __LINUX_OMAP_DMA_H */
diff --git a/include/linux/platform_data/dma-mmp_tdma.h b/include/linux/platform_data/dma-mmp_tdma.h
index 0c72886030ef..422d4504dbac 100644
--- a/include/linux/platform_data/dma-mmp_tdma.h
+++ b/include/linux/platform_data/dma-mmp_tdma.h
@@ -28,7 +28,7 @@ struct sram_platdata {
int granularity;
};
-#ifdef CONFIG_ARM
+#ifdef CONFIG_MMP_SRAM
extern struct gen_pool *sram_get_gpool(char *pool_name);
#else
static inline struct gen_pool *sram_get_gpool(char *pool_name)
diff --git a/include/linux/platform_data/dma-s3c24xx.h b/include/linux/platform_data/dma-s3c24xx.h
index 89ba1b0c90e4..4f9aba405e96 100644
--- a/include/linux/platform_data/dma-s3c24xx.h
+++ b/include/linux/platform_data/dma-s3c24xx.h
@@ -30,16 +30,22 @@ struct s3c24xx_dma_channel {
u16 chansel;
};
+struct dma_slave_map;
+
/**
* struct s3c24xx_dma_platdata - platform specific settings
* @num_phy_channels: number of physical channels
* @channels: array of virtual channel descriptions
* @num_channels: number of virtual channels
+ * @slave_map: dma slave map matching table
+ * @slavecnt: number of elements in slave_map
*/
struct s3c24xx_dma_platdata {
int num_phy_channels;
struct s3c24xx_dma_channel *channels;
int num_channels;
+ const struct dma_slave_map *slave_map;
+ int slavecnt;
};
struct dma_chan;
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-15 09:02:14 +0000