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sparc: Make SBUS DMA interfaces take struct device.

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This is the first step in converting all the SBUS drivers
over to generic dma_*().

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-08-27 18:37:58 -07:00
parent 5778002874
commit 7a715f4601
16 changed files with 167 additions and 156 deletions
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20
arch/sparc/include/asm/sbus_32.h
View File

@@ -109,8 +109,8 @@ extern void sbus_set_sbus64(struct sbus_dev *, int);
extern void sbus_fill_device_irq(struct sbus_dev *);
/* These yield IOMMU mappings in consistent mode. */
extern void *sbus_alloc_consistent(struct sbus_dev *, long, u32 *dma_addrp);
extern void sbus_free_consistent(struct sbus_dev *, long, void *, u32);
extern void *sbus_alloc_consistent(struct device *, long, u32 *dma_addrp);
extern void sbus_free_consistent(struct device *, long, void *, u32);
void prom_adjust_ranges(struct linux_prom_ranges *, int,
struct linux_prom_ranges *, int);
@@ -120,18 +120,14 @@ void prom_adjust_ranges(struct linux_prom_ranges *, int,
#define SBUS_DMA_NONE DMA_NONE
/* All the rest use streaming mode mappings. */
extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int);
extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int);
extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int);
extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int);
extern dma_addr_t sbus_map_single(struct device *, void *, size_t, int);
extern void sbus_unmap_single(struct device *, dma_addr_t, size_t, int);
extern int sbus_map_sg(struct device *, struct scatterlist *, int, int);
extern void sbus_unmap_sg(struct device *, struct scatterlist *, int, int);
/* Finally, allow explicit synchronization of streamable mappings. */
extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int);
#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu
extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int);
extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int);
#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int);
extern void sbus_dma_sync_single_for_cpu(struct device *, dma_addr_t, size_t, int);
extern void sbus_dma_sync_single_for_device(struct device *, dma_addr_t, size_t, int);
/* Eric Brower (ebrower@usa.net)
* Translate SBus interrupt levels to ino values--

48
arch/sparc/include/asm/sbus_64.h
View File

@@ -100,17 +100,16 @@ extern struct sbus_bus *sbus_root;
extern void sbus_set_sbus64(struct sbus_dev *, int);
extern void sbus_fill_device_irq(struct sbus_dev *);
static inline void *sbus_alloc_consistent(struct sbus_dev *sdev , size_t size,
static inline void *sbus_alloc_consistent(struct device *dev , size_t size,
dma_addr_t *dma_handle)
{
return dma_alloc_coherent(&sdev->ofdev.dev, size,
dma_handle, GFP_ATOMIC);
return dma_alloc_coherent(dev, size, dma_handle, GFP_ATOMIC);
}
static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size,
static inline void sbus_free_consistent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
return dma_free_coherent(&sdev->ofdev.dev, size, vaddr, dma_handle);
return dma_free_coherent(dev, size, vaddr, dma_handle);
}
#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL
@@ -119,68 +118,51 @@ static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size,
#define SBUS_DMA_NONE DMA_NONE
/* All the rest use streaming mode mappings. */
static inline dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr,
static inline dma_addr_t sbus_map_single(struct device *dev, void *ptr,
size_t size, int direction)
{
return dma_map_single(&sdev->ofdev.dev, ptr, size,
return dma_map_single(dev, ptr, size,
(enum dma_data_direction) direction);
}
static inline void sbus_unmap_single(struct sbus_dev *sdev,
static inline void sbus_unmap_single(struct device *dev,
dma_addr_t dma_addr, size_t size,
int direction)
{
dma_unmap_single(&sdev->ofdev.dev, dma_addr, size,
dma_unmap_single(dev, dma_addr, size,
(enum dma_data_direction) direction);
}
static inline int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg,
static inline int sbus_map_sg(struct device *dev, struct scatterlist *sg,
int nents, int direction)
{
return dma_map_sg(&sdev->ofdev.dev, sg, nents,
return dma_map_sg(dev, sg, nents,
(enum dma_data_direction) direction);
}
static inline void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg,
static inline void sbus_unmap_sg(struct device *dev, struct scatterlist *sg,
int nents, int direction)
{
dma_unmap_sg(&sdev->ofdev.dev, sg, nents,
dma_unmap_sg(dev, sg, nents,
(enum dma_data_direction) direction);
}
/* Finally, allow explicit synchronization of streamable mappings. */
static inline void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev,
static inline void sbus_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction)
{
dma_sync_single_for_cpu(&sdev->ofdev.dev, dma_handle, size,
dma_sync_single_for_cpu(dev, dma_handle, size,
(enum dma_data_direction) direction);
}
#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu
static inline void sbus_dma_sync_single_for_device(struct sbus_dev *sdev,
static inline void sbus_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction)
{
/* No flushing needed to sync cpu writes to the device. */
}
static inline void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev,
struct scatterlist *sg,
int nents, int direction)
{
dma_sync_sg_for_cpu(&sdev->ofdev.dev, sg, nents,
(enum dma_data_direction) direction);
}
#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
static inline void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev,
struct scatterlist *sg,
int nents, int direction)
{
/* No flushing needed to sync cpu writes to the device. */
}
extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *);
extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *);

43
arch/sparc/kernel/ioport.c
View File

@@ -300,11 +300,10 @@ void __init sbus_fill_device_irq(struct sbus_dev *sdev)
* Allocate a chunk of memory suitable for DMA.
* Typically devices use them for control blocks.
* CPU may access them without any explicit flushing.
*
* XXX Some clever people know that sdev is not used and supply NULL. Watch.
*/
void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp)
{
struct of_device *op = to_of_device(dev);
unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK;
unsigned long va;
struct resource *res;
@@ -341,10 +340,7 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0)
goto err_noiommu;
/* Set the resource name, if known. */
if (sdev) {
res->name = sdev->prom_name;
}
res->name = op->node->name;
return (void *)(unsigned long)res->start;
@@ -358,7 +354,7 @@ err_nopages:
return NULL;
}
void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
{
struct resource *res;
struct page *pgv;
@@ -396,8 +392,10 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
* CPU view of this memory may be inconsistent with
* a device view and explicit flushing is necessary.
*/
dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction)
dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int direction)
{
struct sbus_dev *sdev = to_sbus_device(dev);
/* XXX why are some lengths signed, others unsigned? */
if (len <= 0) {
return 0;
@@ -409,13 +407,16 @@ dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int dire
return mmu_get_scsi_one(va, len, sdev->bus);
}
void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t ba, size_t n, int direction)
void sbus_unmap_single(struct device *dev, dma_addr_t ba, size_t n, int direction)
{
struct sbus_dev *sdev = to_sbus_device(dev);
mmu_release_scsi_one(ba, n, sdev->bus);
}
int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
{
struct sbus_dev *sdev = to_sbus_device(dev);
mmu_get_scsi_sgl(sg, n, sdev->bus);
/*
@@ -425,16 +426,19 @@ int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direct
return n;
}
void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
{
struct sbus_dev *sdev = to_sbus_device(dev);
mmu_release_scsi_sgl(sg, n, sdev->bus);
}
/*
*/
void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
{
#if 0
struct sbus_dev *sdev = to_sbus_device(dev);
unsigned long va;
struct resource *res;
@@ -452,9 +456,10 @@ void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t s
#endif
}
void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
{
#if 0
struct sbus_dev *sdev = to_sbus_device(dev);
unsigned long va;
struct resource *res;
@@ -472,16 +477,6 @@ void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_
#endif
}
void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
{
printk("sbus_dma_sync_sg_for_cpu: not implemented yet\n");
}
void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
{
printk("sbus_dma_sync_sg_for_device: not implemented yet\n");
}
/* Support code for sbus_init(). */
/*
* XXX This functions appears to be a distorted version of

2
arch/sparc/kernel/sparc_ksyms.c
View File

@@ -163,8 +163,6 @@ EXPORT_SYMBOL(sbus_map_sg);
EXPORT_SYMBOL(sbus_unmap_sg);
EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
EXPORT_SYMBOL(sbus_dma_sync_sg_for_cpu);
EXPORT_SYMBOL(sbus_dma_sync_sg_for_device);
EXPORT_SYMBOL(sbus_iounmap);
EXPORT_SYMBOL(sbus_ioremap);
#endif