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X86 & IA64: adapt for dma_map_ops changes
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Adapt core x86 and IA64 architecture code for dma_map_ops changes: replace
alloc/free_coherent with generic alloc/free methods.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
[removed swiotlb related changes and replaced it with wrappers,
 merged with IA64 patch to avoid inter-patch dependences in intel-iommu code]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Luck <tony.luck@intel.com>
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Andrzej Pietrasiewicz authored and Marek Szyprowski committed Mar 28, 2012
1 parent 613c457 commit baa676f
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Showing 15 changed files with 99 additions and 59 deletions.
11 changes: 6 additions & 5 deletions arch/ia64/hp/common/sba_iommu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1130,7 +1130,8 @@ void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
* See Documentation/DMA-API-HOWTO.txt
*/
static void *
sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags)
sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t flags, struct dma_attrs *attrs)
{
struct ioc *ioc;
void *addr;
Expand Down Expand Up @@ -1192,8 +1193,8 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp
*
* See Documentation/DMA-API-HOWTO.txt
*/
static void sba_free_coherent (struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
static void sba_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
sba_unmap_single_attrs(dev, dma_handle, size, 0, NULL);
free_pages((unsigned long) vaddr, get_order(size));
Expand Down Expand Up @@ -2213,8 +2214,8 @@ sba_page_override(char *str)
__setup("sbapagesize=",sba_page_override);

struct dma_map_ops sba_dma_ops = {
.alloc_coherent = sba_alloc_coherent,
.free_coherent = sba_free_coherent,
.alloc = sba_alloc_coherent,
.free = sba_free_coherent,
.map_page = sba_map_page,
.unmap_page = sba_unmap_page,
.map_sg = sba_map_sg_attrs,
Expand Down
18 changes: 12 additions & 6 deletions arch/ia64/include/asm/dma-mapping.h
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Original file line number Diff line number Diff line change
Expand Up @@ -23,23 +23,29 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);

static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *daddr, gfp_t gfp)
#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)

static inline void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *daddr, gfp_t gfp,
struct dma_attrs *attrs)
{
struct dma_map_ops *ops = platform_dma_get_ops(dev);
void *caddr;

caddr = ops->alloc_coherent(dev, size, daddr, gfp);
caddr = ops->alloc(dev, size, daddr, gfp, attrs);
debug_dma_alloc_coherent(dev, size, *daddr, caddr);
return caddr;
}

static inline void dma_free_coherent(struct device *dev, size_t size,
void *caddr, dma_addr_t daddr)
#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)

static inline void dma_free_attrs(struct device *dev, size_t size,
void *caddr, dma_addr_t daddr,
struct dma_attrs *attrs)
{
struct dma_map_ops *ops = platform_dma_get_ops(dev);
debug_dma_free_coherent(dev, size, caddr, daddr);
ops->free_coherent(dev, size, caddr, daddr);
ops->free(dev, size, caddr, daddr, attrs);
}

#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
Expand Down
14 changes: 11 additions & 3 deletions arch/ia64/kernel/pci-swiotlb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,16 +15,24 @@ int swiotlb __read_mostly;
EXPORT_SYMBOL(swiotlb);

static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
dma_addr_t *dma_handle, gfp_t gfp,
struct dma_attrs *attrs)
{
if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
gfp |= GFP_DMA;
return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
}

static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_addr,
struct dma_attrs *attrs)
{
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}

struct dma_map_ops swiotlb_dma_ops = {
.alloc_coherent = ia64_swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
.alloc = ia64_swiotlb_alloc_coherent,
.free = ia64_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
.unmap_page = swiotlb_unmap_page,
.map_sg = swiotlb_map_sg_attrs,
Expand Down
9 changes: 5 additions & 4 deletions arch/ia64/sn/pci/pci_dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -76,7 +76,8 @@ EXPORT_SYMBOL(sn_dma_set_mask);
* more information.
*/
static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t * dma_handle, gfp_t flags)
dma_addr_t * dma_handle, gfp_t flags,
struct dma_attrs *attrs)
{
void *cpuaddr;
unsigned long phys_addr;
Expand Down Expand Up @@ -137,7 +138,7 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
* any associated IOMMU mappings.
*/
static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
Expand Down Expand Up @@ -466,8 +467,8 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
}

static struct dma_map_ops sn_dma_ops = {
.alloc_coherent = sn_dma_alloc_coherent,
.free_coherent = sn_dma_free_coherent,
.alloc = sn_dma_alloc_coherent,
.free = sn_dma_free_coherent,
.map_page = sn_dma_map_page,
.unmap_page = sn_dma_unmap_page,
.map_sg = sn_dma_map_sg,
Expand Down
26 changes: 16 additions & 10 deletions arch/x86/include/asm/dma-mapping.h
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,8 @@ extern int dma_supported(struct device *hwdev, u64 mask);
extern int dma_set_mask(struct device *dev, u64 mask);

extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag);
dma_addr_t *dma_addr, gfp_t flag,
struct dma_attrs *attrs);

static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
Expand Down Expand Up @@ -111,9 +112,11 @@ static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
return gfp;
}

#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)

static inline void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp)
dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp, struct dma_attrs *attrs)
{
struct dma_map_ops *ops = get_dma_ops(dev);
void *memory;
Expand All @@ -129,18 +132,21 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
if (!is_device_dma_capable(dev))
return NULL;

if (!ops->alloc_coherent)
if (!ops->alloc)
return NULL;

memory = ops->alloc_coherent(dev, size, dma_handle,
dma_alloc_coherent_gfp_flags(dev, gfp));
memory = ops->alloc(dev, size, dma_handle,
dma_alloc_coherent_gfp_flags(dev, gfp), attrs);
debug_dma_alloc_coherent(dev, size, *dma_handle, memory);

return memory;
}

static inline void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t bus)
#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)

static inline void dma_free_attrs(struct device *dev, size_t size,
void *vaddr, dma_addr_t bus,
struct dma_attrs *attrs)
{
struct dma_map_ops *ops = get_dma_ops(dev);

Expand All @@ -150,8 +156,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
return;

debug_dma_free_coherent(dev, size, vaddr, bus);
if (ops->free_coherent)
ops->free_coherent(dev, size, vaddr, bus);
if (ops->free)
ops->free(dev, size, vaddr, bus, attrs);
}

#endif
11 changes: 6 additions & 5 deletions arch/x86/kernel/amd_gart_64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -477,7 +477,7 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
/* allocate and map a coherent mapping */
static void *
gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
gfp_t flag)
gfp_t flag, struct dma_attrs *attrs)
{
dma_addr_t paddr;
unsigned long align_mask;
Expand All @@ -500,15 +500,16 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
}
__free_pages(page, get_order(size));
} else
return dma_generic_alloc_coherent(dev, size, dma_addr, flag);
return dma_generic_alloc_coherent(dev, size, dma_addr, flag,
attrs);

return NULL;
}

/* free a coherent mapping */
static void
gart_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr)
dma_addr_t dma_addr, struct dma_attrs *attrs)
{
gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL);
free_pages((unsigned long)vaddr, get_order(size));
Expand Down Expand Up @@ -700,8 +701,8 @@ static struct dma_map_ops gart_dma_ops = {
.unmap_sg = gart_unmap_sg,
.map_page = gart_map_page,
.unmap_page = gart_unmap_page,
.alloc_coherent = gart_alloc_coherent,
.free_coherent = gart_free_coherent,
.alloc = gart_alloc_coherent,
.free = gart_free_coherent,
.mapping_error = gart_mapping_error,
};

Expand Down
9 changes: 5 additions & 4 deletions arch/x86/kernel/pci-calgary_64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -431,7 +431,7 @@ static void calgary_unmap_page(struct device *dev, dma_addr_t dma_addr,
}

static void* calgary_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
{
void *ret = NULL;
dma_addr_t mapping;
Expand Down Expand Up @@ -464,7 +464,8 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size,
}

static void calgary_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
void *vaddr, dma_addr_t dma_handle,
struct dma_attrs *attrs)
{
unsigned int npages;
struct iommu_table *tbl = find_iommu_table(dev);
Expand All @@ -477,8 +478,8 @@ static void calgary_free_coherent(struct device *dev, size_t size,
}

static struct dma_map_ops calgary_dma_ops = {
.alloc_coherent = calgary_alloc_coherent,
.free_coherent = calgary_free_coherent,
.alloc = calgary_alloc_coherent,
.free = calgary_free_coherent,
.map_sg = calgary_map_sg,
.unmap_sg = calgary_unmap_sg,
.map_page = calgary_map_page,
Expand Down
3 changes: 2 additions & 1 deletion arch/x86/kernel/pci-dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -96,7 +96,8 @@ void __init pci_iommu_alloc(void)
}
}
void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag)
dma_addr_t *dma_addr, gfp_t flag,
struct dma_attrs *attrs)
{
unsigned long dma_mask;
struct page *page;
Expand Down
6 changes: 3 additions & 3 deletions arch/x86/kernel/pci-nommu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
}

static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr)
dma_addr_t dma_addr, struct dma_attrs *attrs)
{
free_pages((unsigned long)vaddr, get_order(size));
}
Expand All @@ -96,8 +96,8 @@ static void nommu_sync_sg_for_device(struct device *dev,
}

struct dma_map_ops nommu_dma_ops = {
.alloc_coherent = dma_generic_alloc_coherent,
.free_coherent = nommu_free_coherent,
.alloc = dma_generic_alloc_coherent,
.free = nommu_free_coherent,
.map_sg = nommu_map_sg,
.map_page = nommu_map_page,
.sync_single_for_device = nommu_sync_single_for_device,
Expand Down
17 changes: 13 additions & 4 deletions arch/x86/kernel/pci-swiotlb.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -15,21 +15,30 @@
int swiotlb __read_mostly;

static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags)
dma_addr_t *dma_handle, gfp_t flags,
struct dma_attrs *attrs)
{
void *vaddr;

vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags);
vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags,
attrs);
if (vaddr)
return vaddr;

return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
}

static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_addr,
struct dma_attrs *attrs)
{
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}

static struct dma_map_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc_coherent = x86_swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
.alloc = x86_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
.sync_single_for_device = swiotlb_sync_single_for_device,
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
Expand Down
4 changes: 2 additions & 2 deletions arch/x86/xen/pci-swiotlb-xen.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,8 @@ int xen_swiotlb __read_mostly;

static struct dma_map_ops xen_swiotlb_dma_ops = {
.mapping_error = xen_swiotlb_dma_mapping_error,
.alloc_coherent = xen_swiotlb_alloc_coherent,
.free_coherent = xen_swiotlb_free_coherent,
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
.sync_single_for_device = xen_swiotlb_sync_single_for_device,
.sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu,
Expand Down
10 changes: 6 additions & 4 deletions drivers/iommu/amd_iommu.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2707,7 +2707,8 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist,
* The exported alloc_coherent function for dma_ops.
*/
static void *alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag)
dma_addr_t *dma_addr, gfp_t flag,
struct dma_attrs *attrs)
{
unsigned long flags;
void *virt_addr;
Expand Down Expand Up @@ -2765,7 +2766,8 @@ static void *alloc_coherent(struct device *dev, size_t size,
* The exported free_coherent function for dma_ops.
*/
static void free_coherent(struct device *dev, size_t size,
void *virt_addr, dma_addr_t dma_addr)
void *virt_addr, dma_addr_t dma_addr,
struct dma_attrs *attrs)
{
unsigned long flags;
struct protection_domain *domain;
Expand Down Expand Up @@ -2846,8 +2848,8 @@ static void prealloc_protection_domains(void)
}

static struct dma_map_ops amd_iommu_dma_ops = {
.alloc_coherent = alloc_coherent,
.free_coherent = free_coherent,
.alloc = alloc_coherent,
.free = free_coherent,
.map_page = map_page,
.unmap_page = unmap_page,
.map_sg = map_sg,
Expand Down
9 changes: 5 additions & 4 deletions drivers/iommu/intel-iommu.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2938,7 +2938,8 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
}

static void *intel_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags)
dma_addr_t *dma_handle, gfp_t flags,
struct dma_attrs *attrs)
{
void *vaddr;
int order;
Expand Down Expand Up @@ -2970,7 +2971,7 @@ static void *intel_alloc_coherent(struct device *hwdev, size_t size,
}

static void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
dma_addr_t dma_handle)
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
int order;

Expand Down Expand Up @@ -3115,8 +3116,8 @@ static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr)
}

struct dma_map_ops intel_dma_ops = {
.alloc_coherent = intel_alloc_coherent,
.free_coherent = intel_free_coherent,
.alloc = intel_alloc_coherent,
.free = intel_free_coherent,
.map_sg = intel_map_sg,
.unmap_sg = intel_unmap_sg,
.map_page = intel_map_page,
Expand Down
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