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path: root/drivers/staging/media/ipu3/ipu3-dmamap.c
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Diffstat (limited to 'drivers/staging/media/ipu3/ipu3-dmamap.c')
-rw-r--r--drivers/staging/media/ipu3/ipu3-dmamap.c43
1 files changed, 22 insertions, 21 deletions
diff --git a/drivers/staging/media/ipu3/ipu3-dmamap.c b/drivers/staging/media/ipu3/ipu3-dmamap.c
index 93a393d4e15e..d978a00e1e0b 100644
--- a/drivers/staging/media/ipu3/ipu3-dmamap.c
+++ b/drivers/staging/media/ipu3/ipu3-dmamap.c
@@ -12,11 +12,12 @@
#include "ipu3.h"
#include "ipu3-css-pool.h"
#include "ipu3-mmu.h"
+#include "ipu3-dmamap.h"
/*
- * Free a buffer allocated by ipu3_dmamap_alloc_buffer()
+ * Free a buffer allocated by imgu_dmamap_alloc_buffer()
*/
-static void ipu3_dmamap_free_buffer(struct page **pages,
+static void imgu_dmamap_free_buffer(struct page **pages,
size_t size)
{
int count = size >> PAGE_SHIFT;
@@ -30,7 +31,7 @@ static void ipu3_dmamap_free_buffer(struct page **pages,
* Based on the implementation of __iommu_dma_alloc_pages()
* defined in drivers/iommu/dma-iommu.c
*/
-static struct page **ipu3_dmamap_alloc_buffer(size_t size,
+static struct page **imgu_dmamap_alloc_buffer(size_t size,
unsigned long order_mask,
gfp_t gfp)
{
@@ -73,7 +74,7 @@ static struct page **ipu3_dmamap_alloc_buffer(size_t size,
__free_pages(page, order);
}
if (!page) {
- ipu3_dmamap_free_buffer(pages, i << PAGE_SHIFT);
+ imgu_dmamap_free_buffer(pages, i << PAGE_SHIFT);
return NULL;
}
count -= order_size;
@@ -85,7 +86,7 @@ static struct page **ipu3_dmamap_alloc_buffer(size_t size,
}
/**
- * ipu3_dmamap_alloc - allocate and map a buffer into KVA
+ * imgu_dmamap_alloc - allocate and map a buffer into KVA
* @imgu: struct device pointer
* @map: struct to store mapping variables
* @len: size required
@@ -94,7 +95,7 @@ static struct page **ipu3_dmamap_alloc_buffer(size_t size,
* KVA on success
* %NULL on failure
*/
-void *ipu3_dmamap_alloc(struct imgu_device *imgu, struct ipu3_css_map *map,
+void *imgu_dmamap_alloc(struct imgu_device *imgu, struct imgu_css_map *map,
size_t len)
{
unsigned long shift = iova_shift(&imgu->iova_domain);
@@ -113,7 +114,7 @@ void *ipu3_dmamap_alloc(struct imgu_device *imgu, struct ipu3_css_map *map,
if (!iova)
return NULL;
- pages = ipu3_dmamap_alloc_buffer(size, alloc_sizes >> PAGE_SHIFT,
+ pages = imgu_dmamap_alloc_buffer(size, alloc_sizes >> PAGE_SHIFT,
GFP_KERNEL);
if (!pages)
goto out_free_iova;
@@ -121,7 +122,7 @@ void *ipu3_dmamap_alloc(struct imgu_device *imgu, struct ipu3_css_map *map,
/* Call IOMMU driver to setup pgt */
iovaddr = iova_dma_addr(&imgu->iova_domain, iova);
for (i = 0; i < size / PAGE_SIZE; ++i) {
- rval = ipu3_mmu_map(imgu->mmu, iovaddr,
+ rval = imgu_mmu_map(imgu->mmu, iovaddr,
page_to_phys(pages[i]), PAGE_SIZE);
if (rval)
goto out_unmap;
@@ -152,8 +153,8 @@ out_vunmap:
vunmap(map->vma->addr);
out_unmap:
- ipu3_dmamap_free_buffer(pages, size);
- ipu3_mmu_unmap(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
+ imgu_dmamap_free_buffer(pages, size);
+ imgu_mmu_unmap(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
i * PAGE_SIZE);
map->vma = NULL;
@@ -163,7 +164,7 @@ out_free_iova:
return NULL;
}
-void ipu3_dmamap_unmap(struct imgu_device *imgu, struct ipu3_css_map *map)
+void imgu_dmamap_unmap(struct imgu_device *imgu, struct imgu_css_map *map)
{
struct iova *iova;
@@ -172,16 +173,16 @@ void ipu3_dmamap_unmap(struct imgu_device *imgu, struct ipu3_css_map *map)
if (WARN_ON(!iova))
return;
- ipu3_mmu_unmap(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
+ imgu_mmu_unmap(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
iova_size(iova) << iova_shift(&imgu->iova_domain));
__free_iova(&imgu->iova_domain, iova);
}
/*
- * Counterpart of ipu3_dmamap_alloc
+ * Counterpart of imgu_dmamap_alloc
*/
-void ipu3_dmamap_free(struct imgu_device *imgu, struct ipu3_css_map *map)
+void imgu_dmamap_free(struct imgu_device *imgu, struct imgu_css_map *map)
{
struct vm_struct *area = map->vma;
@@ -191,18 +192,18 @@ void ipu3_dmamap_free(struct imgu_device *imgu, struct ipu3_css_map *map)
if (!map->vaddr)
return;
- ipu3_dmamap_unmap(imgu, map);
+ imgu_dmamap_unmap(imgu, map);
if (WARN_ON(!area) || WARN_ON(!area->pages))
return;
- ipu3_dmamap_free_buffer(area->pages, map->size);
+ imgu_dmamap_free_buffer(area->pages, map->size);
vunmap(map->vaddr);
map->vaddr = NULL;
}
-int ipu3_dmamap_map_sg(struct imgu_device *imgu, struct scatterlist *sglist,
- int nents, struct ipu3_css_map *map)
+int imgu_dmamap_map_sg(struct imgu_device *imgu, struct scatterlist *sglist,
+ int nents, struct imgu_css_map *map)
{
unsigned long shift = iova_shift(&imgu->iova_domain);
struct scatterlist *sg;
@@ -232,7 +233,7 @@ int ipu3_dmamap_map_sg(struct imgu_device *imgu, struct scatterlist *sglist,
dev_dbg(&imgu->pci_dev->dev, "dmamap: iova low pfn %lu, high pfn %lu\n",
iova->pfn_lo, iova->pfn_hi);
- if (ipu3_mmu_map_sg(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
+ if (imgu_mmu_map_sg(imgu->mmu, iova_dma_addr(&imgu->iova_domain, iova),
sglist, nents) < size)
goto out_fail;
@@ -248,7 +249,7 @@ out_fail:
return -EFAULT;
}
-int ipu3_dmamap_init(struct imgu_device *imgu)
+int imgu_dmamap_init(struct imgu_device *imgu)
{
unsigned long order, base_pfn;
int ret = iova_cache_get();
@@ -263,7 +264,7 @@ int ipu3_dmamap_init(struct imgu_device *imgu)
return 0;
}
-void ipu3_dmamap_exit(struct imgu_device *imgu)
+void imgu_dmamap_exit(struct imgu_device *imgu)
{
put_iova_domain(&imgu->iova_domain);
iova_cache_put();