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-rw-r--r--arch/x86/include/asm/device.h2
-rw-r--r--arch/x86/include/asm/dma-mapping.h188
-rw-r--r--arch/x86/include/asm/iommu.h2
3 files changed, 95 insertions, 97 deletions
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 3c034f4..4994a20 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -6,7 +6,7 @@ struct dev_archdata {
void *acpi_handle;
#endif
#ifdef CONFIG_X86_64
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
#endif
#ifdef CONFIG_DMAR
void *iommu; /* hook for IOMMU specific extension */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 132a134..cea7b74 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -7,6 +7,8 @@
*/
#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
+#include <linux/dma-attrs.h>
#include <asm/io.h>
#include <asm/swiotlb.h>
#include <asm-generic/dma-coherent.h>
@@ -16,47 +18,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
-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, phys_addr_t 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)(struct device *hwdev, u64 mask);
- int is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
-
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+extern struct dma_map_ops *dma_ops;
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_X86_32
return dma_ops;
@@ -71,7 +35,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
/* Make sure we keep the same behaviour */
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->mapping_error)
return ops->mapping_error(dev, dma_addr);
@@ -90,137 +54,167 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
static inline dma_addr_t
dma_map_single(struct device *hwdev, void *ptr, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(direction));
- return ops->map_single(hwdev, virt_to_phys(ptr), size, direction);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
+ dma_addr_t addr;
+
+ BUG_ON(!valid_dma_direction(dir));
+ addr = ops->map_page(hwdev, virt_to_page(ptr),
+ (unsigned long)ptr & ~PAGE_MASK, size,
+ dir, NULL);
+ debug_dma_map_page(hwdev, virt_to_page(ptr),
+ (unsigned long)ptr & ~PAGE_MASK, size,
+ dir, addr, true);
+ return addr;
}
static inline void
dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
- BUG_ON(!valid_dma_direction(direction));
- if (ops->unmap_single)
- ops->unmap_single(dev, addr, size, direction);
+ BUG_ON(!valid_dma_direction(dir));
+ if (ops->unmap_page)
+ ops->unmap_page(dev, addr, size, dir, NULL);
+ debug_dma_unmap_page(dev, addr, size, dir, true);
}
static inline int
dma_map_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction)
+ int nents, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
+ int ents;
+
+ BUG_ON(!valid_dma_direction(dir));
+ ents = ops->map_sg(hwdev, sg, nents, dir, NULL);
+ debug_dma_map_sg(hwdev, sg, nents, ents, dir);
- BUG_ON(!valid_dma_direction(direction));
- return ops->map_sg(hwdev, sg, nents, direction);
+ return ents;
}
static inline void
dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
+ debug_dma_unmap_sg(hwdev, sg, nents, dir);
if (ops->unmap_sg)
- ops->unmap_sg(hwdev, sg, nents, direction);
+ ops->unmap_sg(hwdev, sg, nents, dir, NULL);
}
static inline void
dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
- ops->sync_single_for_cpu(hwdev, dma_handle, size, direction);
+ ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
+ debug_dma_sync_single_for_cpu(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
- ops->sync_single_for_device(hwdev, dma_handle, size, direction);
+ ops->sync_single_for_device(hwdev, dma_handle, size, dir);
+ debug_dma_sync_single_for_device(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- unsigned long offset, size_t size, int direction)
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_cpu)
ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
- size, direction);
+ size, dir);
+ debug_dma_sync_single_range_for_cpu(hwdev, dma_handle,
+ offset, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
unsigned long offset, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_device)
ops->sync_single_range_for_device(hwdev, dma_handle,
- offset, size, direction);
+ offset, size, dir);
+ debug_dma_sync_single_range_for_device(hwdev, dma_handle,
+ offset, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
- ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
+ ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
+ debug_dma_sync_sg_for_cpu(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
- ops->sync_sg_for_device(hwdev, sg, nelems, direction);
+ ops->sync_sg_for_device(hwdev, sg, nelems, dir);
+ debug_dma_sync_sg_for_device(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
size_t offset, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
+ dma_addr_t addr;
- BUG_ON(!valid_dma_direction(direction));
- return ops->map_single(dev, page_to_phys(page) + offset,
- size, direction);
+ BUG_ON(!valid_dma_direction(dir));
+ addr = ops->map_page(dev, page, offset, size, dir, NULL);
+ debug_dma_map_page(dev, page, offset, size, dir, addr, false);
+
+ return addr;
}
static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- dma_unmap_single(dev, addr, size, direction);
+ struct dma_map_ops *ops = get_dma_ops(dev);
+
+ BUG_ON(!valid_dma_direction(dir));
+ if (ops->unmap_page)
+ ops->unmap_page(dev, addr, size, dir, NULL);
+ debug_dma_unmap_page(dev, addr, size, dir, false);
}
static inline void
@@ -266,7 +260,7 @@ static inline void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
void *memory;
gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -285,20 +279,24 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
if (!ops->alloc_coherent)
return NULL;
- return ops->alloc_coherent(dev, size, dma_handle,
- dma_alloc_coherent_gfp_flags(dev, gfp));
+ memory = ops->alloc_coherent(dev, size, dma_handle,
+ dma_alloc_coherent_gfp_flags(dev, gfp));
+ 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)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
WARN_ON(irqs_disabled()); /* for portability */
if (dma_release_from_coherent(dev, get_order(size), vaddr))
return;
+ debug_dma_free_coherent(dev, size, vaddr, bus);
if (ops->free_coherent)
ops->free_coherent(dev, size, vaddr, bus);
}
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index a6ee9e6..af326a2 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -3,7 +3,7 @@
extern void pci_iommu_shutdown(void);
extern void no_iommu_init(void);
-extern struct dma_mapping_ops nommu_dma_ops;
+extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
generated by cgit v0.10.2 at 2024-11-10 09:25:19 (GMT)