[PATCH 093/115] ion: don't use phys_to_page or __phys_to_pfn

John Stultz
2013-12-14T03:26:48Z

From: Colin Cross <ccross@android.com>

phys_to_page and __phys_to_pfn don't exist on all platforms.
Use a combination of pfn_to_page, PFN_DOWN, page_to_pfn, and
virt_to_page to get the same results.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
drivers/staging/android/ion/ion_carveout_heap.c | 4 ++--
drivers/staging/android/ion/ion_chunk_heap.c | 5 +++--
drivers/staging/android/ion/ion_system_heap.c | 2 +-
3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index 051363a..1d53e91 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -96,8 +96,8 @@ struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap,
kfree(table);
return ERR_PTR(ret);
}
- sg_set_page(table->sgl, phys_to_page(buffer->priv_phys), buffer->size,
- 0);
+ sg_set_page(table->sgl, pfn_to_page(PFN_DOWN(buffer->priv_phys)),
+ buffer->size, 0);
return table;
}

diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index d3363d6..fb1a7b9 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -71,7 +71,8 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap,
chunk_heap->chunk_size);
if (!paddr)
goto err;
- sg_set_page(sg, phys_to_page(paddr), chunk_heap->chunk_size, 0);
+ sg_set_page(sg, pfn_to_page(PFN_DOWN(paddr)),
+ chunk_heap->chunk_size, 0);
sg = sg_next(sg);
}

@@ -167,7 +168,7 @@ struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *heap_data)
goto error;
}
for (i = 0; i < chunk_heap->size; i += PAGE_SIZE) {
- struct page *page = phys_to_page(chunk_heap->base + i);
+ struct page *page = pfn_to_page(PFN_DOWN(chunk_heap->base + i));
struct page **pages = &page;

ret = map_vm_area(vm_struct, pgprot, &pages);
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 62a07ec..3b2f420 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -426,7 +426,7 @@ int ion_system_contig_heap_map_user(struct ion_heap *heap,
struct ion_buffer *buffer,
struct vm_area_struct *vma)
{
- unsigned long pfn = __phys_to_pfn(virt_to_phys(buffer->priv_virt));
+ unsigned long pfn = page_to_pfn(virt_to_page(buffer->priv_virt));
return remap_pfn_range(vma, vma->vm_start, pfn + vma->vm_pgoff,
vma->vm_end - vma->vm_start,
vma->vm_page_prot);
--
1.8.3.2