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From: Konrad Rzeszutek Wilk on 4 Jun 2010 14:00
.. to catch anybody doing something funky.

[v2: swiotlb_sync_single_range_* no more - removed usage]

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk(a)oracle.com>
Acked-by: FUJITA Tomonori <fujita.tomonori(a)lab.ntt.co.jp>
Tested-by: Albert Herranz <albert_herranz(a)yahoo.es>
---
include/linux/swiotlb.h | 4 ++--
lib/swiotlb.c | 23 +++++++++++++----------
2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index b406261..00ff153 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -43,11 +43,11 @@ extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,

extern int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction);
+ enum dma_data_direction direction);

extern void
swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction);
+ enum dma_data_direction direction);

extern int
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 1fc15bf..5f60157 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -374,7 +374,8 @@ static void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size,
}

void *swiotlb_tbl_map_single(struct device *hwdev, dma_addr_t tbl_dma_addr,
- phys_addr_t phys, size_t size, int dir)
+ phys_addr_t phys, size_t size,
+ enum dma_data_direction dir)
{
unsigned long flags;
char *dma_addr;
@@ -481,7 +482,8 @@ found:
*/

static void *
-map_single(struct device *hwdev, phys_addr_t phys, size_t size, int dir)
+map_single(struct device *hwdev, phys_addr_t phys, size_t size,
+ enum dma_data_direction dir)
{
dma_addr_t start_dma_addr = swiotlb_virt_to_bus(hwdev, io_tlb_start);

@@ -493,7 +495,7 @@ map_single(struct device *hwdev, phys_addr_t phys, size_t size, int dir)
*/
static void
swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, size_t size,
- int dir)
+ enum dma_data_direction dir)
{
unsigned long flags;
int i, count, nslots = ALIGN(size, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
@@ -534,7 +536,7 @@ swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, size_t size,

static void
swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, size_t size,
- int dir, int target)
+ enum dma_data_direction dir, int target)
{
int index = (dma_addr - io_tlb_start) >> IO_TLB_SHIFT;
phys_addr_t phys = io_tlb_orig_addr[index];
@@ -624,7 +626,8 @@ swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
EXPORT_SYMBOL(swiotlb_free_coherent);

static void
-swiotlb_full(struct device *dev, size_t size, int dir, int do_panic)
+swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,
+ int do_panic)
{
/*
* Ran out of IOMMU space for this operation. This is very bad.
@@ -702,7 +705,7 @@ EXPORT_SYMBOL_GPL(swiotlb_map_page);
* whatever the device wrote there.
*/
static void unmap_single(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir)
+ size_t size, enum dma_data_direction dir)
{
phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);

@@ -745,7 +748,7 @@ EXPORT_SYMBOL_GPL(swiotlb_unmap_page);
*/
static void
swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir, int target)
+ size_t size, enum dma_data_direction dir, int target)
{
phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);

@@ -832,7 +835,7 @@ EXPORT_SYMBOL(swiotlb_map_sg_attrs);

int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
- int dir)
+ enum dma_data_direction dir)
{
return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL);
}
@@ -859,7 +862,7 @@ EXPORT_SYMBOL(swiotlb_unmap_sg_attrs);

void
swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
- int dir)
+ enum dma_data_direction dir)
{
return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL);
}
@@ -874,7 +877,7 @@ EXPORT_SYMBOL(swiotlb_unmap_sg);
*/
static void
swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
- int nelems, int dir, int target)
+ int nelems, enum dma_data_direction dir, int target)
{
struct scatterlist *sg;
int i;
--
1.6.2.5

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Prev: [PATCH] staging: usbip: usbip_common: kill rx thread on tx thread creation error.
Next: [PATCH 1/5] swiotlb: add swiotlb_tbl_map_single library function