#include <linux/scatterlist.h>
#include <asm/swiotlb.h>
-struct dma_mapping_ops {
- int (*mapping_error)(struct device *dev,
- dma_addr_t dma_addr);
- void* (*alloc_coherent)(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp);
- void (*free_coherent)(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
- dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr,
- size_t size, int direction);
- void (*unmap_single)(struct device *dev, dma_addr_t addr,
- size_t size, int direction);
- void (*sync_single_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_range_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_single_range_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_sg_for_cpu)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- void (*sync_sg_for_device)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction);
- void (*unmap_sg)(struct device *hwdev,
- struct scatterlist *sg, int nents,
- int direction);
- int (*dma_supported_op)(struct device *hwdev, u64 mask);
- int is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
+ #define ARCH_HAS_DMA_GET_REQUIRED_MASK
+
+extern struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
-#define dma_alloc_coherent(dev, size, handle, gfp) \
- platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA)
+extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
+ enum dma_data_direction);
+extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
+ enum dma_data_direction);
-/* coherent mem. is cheap */
-static inline void *
-dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
- gfp_t flag)
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *daddr, gfp_t gfp)
{
- return dma_alloc_coherent(dev, size, dma_handle, flag);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
}
-#define dma_free_coherent platform_dma_free_coherent
-static inline void
-dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle)
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+ void *caddr, dma_addr_t daddr)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->free_coherent(dev, size, caddr, daddr);
+}
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+static inline dma_addr_t dma_map_single_attrs(struct device *dev,
+ void *caddr, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_page(dev, virt_to_page(caddr),
+ (unsigned long)caddr & ~PAGE_MASK, size,
+ dir, attrs);
+}
+
+static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
+ size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->unmap_page(dev, daddr, size, dir, attrs);
+}
+
+#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
+#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
+
+static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_sg(dev, sgl, nents, dir, attrs);
+}
+
+static inline void dma_unmap_sg_attrs(struct device *dev,
+ struct scatterlist *sgl, int nents,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->unmap_sg(dev, sgl, nents, dir, attrs);
+}
+
+#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
+#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
+
+static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
+ size_t size,
+ enum dma_data_direction dir)
{
- dma_free_coherent(dev, size, cpu_addr, dma_handle);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->sync_single_for_cpu(dev, daddr, size, dir);
}
-#define dma_map_single_attrs platform_dma_map_single_attrs
-static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
- size_t size, int dir)
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir)
{
- return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->sync_sg_for_cpu(dev, sgl, nents, dir);
}
-#define dma_map_sg_attrs platform_dma_map_sg_attrs
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl,
- int nents, int dir)
+
+static inline void dma_sync_single_for_device(struct device *dev,
+ dma_addr_t daddr,
+ size_t size,
+ enum dma_data_direction dir)
{
- return dma_map_sg_attrs(dev, sgl, nents, dir, NULL);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->sync_single_for_device(dev, daddr, size, dir);
}
-#define dma_unmap_single_attrs platform_dma_unmap_single_attrs
-static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr,
- size_t size, int dir)
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sgl,
+ int nents,
+ enum dma_data_direction dir)
{
- return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->sync_sg_for_device(dev, sgl, nents, dir);
}
-#define dma_unmap_sg_attrs platform_dma_unmap_sg_attrs
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
- int nents, int dir)
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->mapping_error(dev, daddr);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+ size_t offset, size_t size,
+ enum dma_data_direction dir)
{
- return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_page(dev, page, offset, size, dir, NULL);
}
-#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
-#define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu
-#define dma_sync_single_for_device platform_dma_sync_single_for_device
-#define dma_sync_sg_for_device platform_dma_sync_sg_for_device
-#define dma_mapping_error platform_dma_mapping_error
-#define dma_map_page(dev, pg, off, size, dir) \
- dma_map_single(dev, page_address(pg) + (off), (size), (dir))
-#define dma_unmap_page(dev, dma_addr, size, dir) \
- dma_unmap_single(dev, dma_addr, size, dir)
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir)
+{
+ dma_unmap_single(dev, addr, size, dir);
+}
/*
* Rest of this file is part of the "Advanced DMA API". Use at your own risk.
#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
dma_sync_single_for_device(dev, dma_handle, size, dir)
-#define dma_supported platform_dma_supported
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->dma_supported(dev, mask);
+}
static inline int
dma_set_mask (struct device *dev, u64 mask)
#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
-{
- return dma_ops;
-}
-
-
-
#endif /* _ASM_IA64_DMA_MAPPING_H */
#define _ASM_IA64_MACHVEC_H
#include <linux/types.h>
-#include <linux/swiotlb.h>
/* forward declarations: */
struct device;
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
-typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, gfp_t);
-typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t);
-typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int);
-typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int);
-typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int);
-typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int);
-typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int);
-typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int);
-typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int);
-typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int);
-typedef int ia64_mv_dma_mapping_error(struct device *, dma_addr_t dma_addr);
-typedef int ia64_mv_dma_supported (struct device *, u64);
-
-typedef dma_addr_t ia64_mv_dma_map_single_attrs (struct device *, void *, size_t, int, struct dma_attrs *);
-typedef void ia64_mv_dma_unmap_single_attrs (struct device *, dma_addr_t, size_t, int, struct dma_attrs *);
-typedef int ia64_mv_dma_map_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *);
-typedef void ia64_mv_dma_unmap_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *);
+ typedef u64 ia64_mv_dma_get_required_mask (struct device *);
+typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
extern void machvec_setup (char **);
extern void machvec_timer_interrupt (int, void *);
-extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
-extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
extern void machvec_tlb_migrate_finish (struct mm_struct *);
# if defined (CONFIG_IA64_HP_SIM)
# define platform_global_tlb_purge ia64_mv.global_tlb_purge
# define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
# define platform_dma_init ia64_mv.dma_init
-# define platform_dma_alloc_coherent ia64_mv.dma_alloc_coherent
-# define platform_dma_free_coherent ia64_mv.dma_free_coherent
-# define platform_dma_map_single_attrs ia64_mv.dma_map_single_attrs
-# define platform_dma_unmap_single_attrs ia64_mv.dma_unmap_single_attrs
-# define platform_dma_map_sg_attrs ia64_mv.dma_map_sg_attrs
-# define platform_dma_unmap_sg_attrs ia64_mv.dma_unmap_sg_attrs
-# define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu
-# define platform_dma_sync_sg_for_cpu ia64_mv.dma_sync_sg_for_cpu
-# define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device
-# define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device
-# define platform_dma_mapping_error ia64_mv.dma_mapping_error
-# define platform_dma_supported ia64_mv.dma_supported
+ # define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
+# define platform_dma_get_ops ia64_mv.dma_get_ops
# define platform_irq_to_vector ia64_mv.irq_to_vector
# define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
# define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
ia64_mv_global_tlb_purge_t *global_tlb_purge;
ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
ia64_mv_dma_init *dma_init;
- ia64_mv_dma_alloc_coherent *dma_alloc_coherent;
- ia64_mv_dma_free_coherent *dma_free_coherent;
- ia64_mv_dma_map_single_attrs *dma_map_single_attrs;
- ia64_mv_dma_unmap_single_attrs *dma_unmap_single_attrs;
- ia64_mv_dma_map_sg_attrs *dma_map_sg_attrs;
- ia64_mv_dma_unmap_sg_attrs *dma_unmap_sg_attrs;
- ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu;
- ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu;
- ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device;
- ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device;
- ia64_mv_dma_mapping_error *dma_mapping_error;
- ia64_mv_dma_supported *dma_supported;
+ ia64_mv_dma_get_required_mask *dma_get_required_mask;
+ ia64_mv_dma_get_ops *dma_get_ops;
ia64_mv_irq_to_vector *irq_to_vector;
ia64_mv_local_vector_to_irq *local_vector_to_irq;
ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
platform_global_tlb_purge, \
platform_tlb_migrate_finish, \
platform_dma_init, \
- platform_dma_alloc_coherent, \
- platform_dma_free_coherent, \
- platform_dma_map_single_attrs, \
- platform_dma_unmap_single_attrs, \
- platform_dma_map_sg_attrs, \
- platform_dma_unmap_sg_attrs, \
- platform_dma_sync_single_for_cpu, \
- platform_dma_sync_sg_for_cpu, \
- platform_dma_sync_single_for_device, \
- platform_dma_sync_sg_for_device, \
- platform_dma_mapping_error, \
- platform_dma_supported, \
+ platform_dma_get_required_mask, \
+ platform_dma_get_ops, \
platform_irq_to_vector, \
platform_local_vector_to_irq, \
platform_pci_get_legacy_mem, \
# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
# endif /* CONFIG_IA64_GENERIC */
+extern void swiotlb_dma_init(void);
+extern struct dma_map_ops *dma_get_ops(struct device *);
+
/*
* Define default versions so we can extend machvec for new platforms without having
* to update the machvec files for all existing platforms.
# define platform_kernel_launch_event machvec_noop
#endif
#ifndef platform_dma_init
-# define platform_dma_init swiotlb_init
-#endif
-#ifndef platform_dma_alloc_coherent
-# define platform_dma_alloc_coherent swiotlb_alloc_coherent
-#endif
-#ifndef platform_dma_free_coherent
-# define platform_dma_free_coherent swiotlb_free_coherent
-#endif
-#ifndef platform_dma_map_single_attrs
-# define platform_dma_map_single_attrs swiotlb_map_single_attrs
-#endif
-#ifndef platform_dma_unmap_single_attrs
-# define platform_dma_unmap_single_attrs swiotlb_unmap_single_attrs
-#endif
-#ifndef platform_dma_map_sg_attrs
-# define platform_dma_map_sg_attrs swiotlb_map_sg_attrs
-#endif
-#ifndef platform_dma_unmap_sg_attrs
-# define platform_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs
-#endif
-#ifndef platform_dma_sync_single_for_cpu
-# define platform_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu
-#endif
-#ifndef platform_dma_sync_sg_for_cpu
-# define platform_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu
-#endif
-#ifndef platform_dma_sync_single_for_device
-# define platform_dma_sync_single_for_device swiotlb_sync_single_for_device
-#endif
-#ifndef platform_dma_sync_sg_for_device
-# define platform_dma_sync_sg_for_device swiotlb_sync_sg_for_device
-#endif
-#ifndef platform_dma_mapping_error
-# define platform_dma_mapping_error swiotlb_dma_mapping_error
+# define platform_dma_init swiotlb_dma_init
#endif
-#ifndef platform_dma_supported
-# define platform_dma_supported swiotlb_dma_supported
+#ifndef platform_dma_get_ops
+# define platform_dma_get_ops dma_get_ops
#endif
+ #ifndef platform_dma_get_required_mask
+ # define platform_dma_get_required_mask ia64_dma_get_required_mask
+ #endif
#ifndef platform_irq_to_vector
# define platform_irq_to_vector __ia64_irq_to_vector
#endif
extern ia64_mv_readw_t __sn_readw_relaxed;
extern ia64_mv_readl_t __sn_readl_relaxed;
extern ia64_mv_readq_t __sn_readq_relaxed;
-extern ia64_mv_dma_alloc_coherent sn_dma_alloc_coherent;
-extern ia64_mv_dma_free_coherent sn_dma_free_coherent;
-extern ia64_mv_dma_map_single_attrs sn_dma_map_single_attrs;
-extern ia64_mv_dma_unmap_single_attrs sn_dma_unmap_single_attrs;
-extern ia64_mv_dma_map_sg_attrs sn_dma_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg_attrs sn_dma_unmap_sg_attrs;
-extern ia64_mv_dma_sync_single_for_cpu sn_dma_sync_single_for_cpu;
-extern ia64_mv_dma_sync_sg_for_cpu sn_dma_sync_sg_for_cpu;
-extern ia64_mv_dma_sync_single_for_device sn_dma_sync_single_for_device;
-extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device;
-extern ia64_mv_dma_mapping_error sn_dma_mapping_error;
-extern ia64_mv_dma_supported sn_dma_supported;
+ extern ia64_mv_dma_get_required_mask sn_dma_get_required_mask;
+extern ia64_mv_dma_init sn_dma_init;
extern ia64_mv_migrate_t sn_migrate;
extern ia64_mv_kernel_launch_event_t sn_kernel_launch_event;
extern ia64_mv_setup_msi_irq_t sn_setup_msi_irq;
#define platform_pci_get_legacy_mem sn_pci_get_legacy_mem
#define platform_pci_legacy_read sn_pci_legacy_read
#define platform_pci_legacy_write sn_pci_legacy_write
-#define platform_dma_init machvec_noop
-#define platform_dma_alloc_coherent sn_dma_alloc_coherent
-#define platform_dma_free_coherent sn_dma_free_coherent
-#define platform_dma_map_single_attrs sn_dma_map_single_attrs
-#define platform_dma_unmap_single_attrs sn_dma_unmap_single_attrs
-#define platform_dma_map_sg_attrs sn_dma_map_sg_attrs
-#define platform_dma_unmap_sg_attrs sn_dma_unmap_sg_attrs
-#define platform_dma_sync_single_for_cpu sn_dma_sync_single_for_cpu
-#define platform_dma_sync_sg_for_cpu sn_dma_sync_sg_for_cpu
-#define platform_dma_sync_single_for_device sn_dma_sync_single_for_device
-#define platform_dma_sync_sg_for_device sn_dma_sync_sg_for_device
-#define platform_dma_mapping_error sn_dma_mapping_error
-#define platform_dma_supported sn_dma_supported
+ #define platform_dma_get_required_mask sn_dma_get_required_mask
+#define platform_dma_init sn_dma_init
#define platform_migrate sn_migrate
#define platform_kernel_launch_event sn_kernel_launch_event
#ifdef CONFIG_PCI_MSI
*/
#include <linux/module.h>
-#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/sn/intr.h>
#include <asm/sn/pcibus_provider_defs.h>
* this function. Of course, SN only supports devices that have 32 or more
* address bits when using the PMU.
*/
-int sn_dma_supported(struct device *dev, u64 mask)
+static int sn_dma_supported(struct device *dev, u64 mask)
{
BUG_ON(dev->bus != &pci_bus_type);
return 0;
return 1;
}
-EXPORT_SYMBOL(sn_dma_supported);
/**
* sn_dma_set_mask - set the DMA mask
* queue for a SCSI controller). See Documentation/DMA-API.txt for
* more information.
*/
-void *sn_dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t * dma_handle, gfp_t flags)
+static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t * dma_handle, gfp_t flags)
{
void *cpuaddr;
unsigned long phys_addr;
return cpuaddr;
}
-EXPORT_SYMBOL(sn_dma_alloc_coherent);
/**
* sn_pci_free_coherent - free memory associated with coherent DMAable region
* Frees the memory allocated by dma_alloc_coherent(), potentially unmapping
* any associated IOMMU mappings.
*/
-void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle)
+static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t dma_handle)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
provider->dma_unmap(pdev, dma_handle, 0);
free_pages((unsigned long)cpu_addr, get_order(size));
}
-EXPORT_SYMBOL(sn_dma_free_coherent);
/**
* sn_dma_map_single_attrs - map a single page for DMA
* TODO: simplify our interface;
* figure out how to save dmamap handle so can use two step.
*/
-dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
+ void *cpu_addr = page_address(page) + offset;
dma_addr_t dma_addr;
unsigned long phys_addr;
struct pci_dev *pdev = to_pci_dev(dev);
}
return dma_addr;
}
-EXPORT_SYMBOL(sn_dma_map_single_attrs);
/**
* sn_dma_unmap_single_attrs - unamp a DMA mapped page
* by @dma_handle into the coherence domain. On SN, we're always cache
* coherent, so we just need to free any ATEs associated with this mapping.
*/
-void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
- provider->dma_unmap(pdev, dma_addr, direction);
+ provider->dma_unmap(pdev, dma_addr, dir);
}
-EXPORT_SYMBOL(sn_dma_unmap_single_attrs);
/**
- * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist
+ * sn_dma_unmap_sg - unmap a DMA scatterlist
* @dev: device to unmap
* @sg: scatterlist to unmap
* @nhwentries: number of scatterlist entries
*
* Unmap a set of streaming mode DMA translations.
*/
-void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(dev);
BUG_ON(dev->bus != &pci_bus_type);
for_each_sg(sgl, sg, nhwentries, i) {
- provider->dma_unmap(pdev, sg->dma_address, direction);
+ provider->dma_unmap(pdev, sg->dma_address, dir);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
}
}
-EXPORT_SYMBOL(sn_dma_unmap_sg_attrs);
/**
- * sn_dma_map_sg_attrs - map a scatterlist for DMA
+ * sn_dma_map_sg - map a scatterlist for DMA
* @dev: device to map for
* @sg: scatterlist to map
* @nhwentries: number of entries
*
* Maps each entry of @sg for DMA.
*/
-int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction, struct dma_attrs *attrs)
+static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long phys_addr;
struct scatterlist *saved_sg = sgl, *sg;
* Free any successfully allocated entries.
*/
if (i > 0)
- sn_dma_unmap_sg_attrs(dev, saved_sg, i,
- direction, attrs);
+ sn_dma_unmap_sg(dev, saved_sg, i, dir, attrs);
return 0;
}
return nhwentries;
}
-EXPORT_SYMBOL(sn_dma_map_sg_attrs);
-void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
-EXPORT_SYMBOL(sn_dma_sync_single_for_cpu);
-void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+ size_t size,
+ enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
-EXPORT_SYMBOL(sn_dma_sync_single_for_device);
-void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
-EXPORT_SYMBOL(sn_dma_sync_sg_for_cpu);
-void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
-EXPORT_SYMBOL(sn_dma_sync_sg_for_device);
-int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return 0;
}
-EXPORT_SYMBOL(sn_dma_mapping_error);
+ u64 sn_dma_get_required_mask(struct device *dev)
+ {
+ return DMA_64BIT_MASK;
+ }
+ EXPORT_SYMBOL_GPL(sn_dma_get_required_mask);
+
char *sn_pci_get_legacy_mem(struct pci_bus *bus)
{
if (!SN_PCIBUS_BUSSOFT(bus))
out:
return ret;
}
+
+static struct dma_map_ops sn_dma_ops = {
+ .alloc_coherent = sn_dma_alloc_coherent,
+ .free_coherent = sn_dma_free_coherent,
+ .map_page = sn_dma_map_page,
+ .unmap_page = sn_dma_unmap_page,
+ .map_sg = sn_dma_map_sg,
+ .unmap_sg = sn_dma_unmap_sg,
+ .sync_single_for_cpu = sn_dma_sync_single_for_cpu,
+ .sync_sg_for_cpu = sn_dma_sync_sg_for_cpu,
+ .sync_single_for_device = sn_dma_sync_single_for_device,
+ .sync_sg_for_device = sn_dma_sync_sg_for_device,
+ .mapping_error = sn_dma_mapping_error,
+ .dma_supported = sn_dma_supported,
+};
+
+void sn_dma_init(void)
+{
+ dma_ops = &sn_dma_ops;
+}
continue;
for (i = 0; i < drhd->devices_cnt; i++)
- if (drhd->devices[i]->bus->number == bus &&
+ if (drhd->devices[i] &&
+ drhd->devices[i]->bus->number == bus &&
drhd->devices[i]->devfn == devfn)
return drhd->iommu;
return 0;
}
+static dma_addr_t intel_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ return __intel_map_single(dev, page_to_phys(page) + offset, size,
+ dir, to_pci_dev(dev)->dma_mask);
+}
+
dma_addr_t intel_map_single(struct device *hwdev, phys_addr_t paddr,
size_t size, int dir)
{
spin_unlock_irqrestore(&async_umap_flush_lock, flags);
}
-void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
- int dir)
+static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct dmar_domain *domain;
}
}
+void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
+ int dir)
+{
+ intel_unmap_page(dev, dev_addr, size, dir, NULL);
+}
+
void *intel_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags)
{
#define SG_ENT_VIRT_ADDRESS(sg) (sg_virt((sg)))
void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(hwdev);
}
int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
- int dir)
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
void *addr;
int i;
return nelems;
}
-static struct dma_mapping_ops intel_dma_ops = {
+struct dma_map_ops intel_dma_ops = {
.alloc_coherent = intel_alloc_coherent,
.free_coherent = intel_free_coherent,
- .map_single = intel_map_single,
- .unmap_single = intel_unmap_single,
.map_sg = intel_map_sg,
.unmap_sg = intel_unmap_sg,
+ .map_page = intel_map_page,
+ .unmap_page = intel_unmap_page,
};
static inline int iommu_domain_cache_init(void)
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff