From 8be3759a5e4ed91ffbe24d98b33a71f651cb3f9b Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Fri, 13 Dec 2013 14:25:06 -0800
Subject: [PATCH] ion: don't use __arm_ioremap to map pages

ion_heap_map_kernel already implements mapping a scatterlist of
pages into the kernel, and all heaps are required to have struct
pages associated with them, so delete the functions that use
__arm_ioremap and use ion_heap_map_kernel instead.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/android/ion/ion_carveout_heap.c   | 42 ++-----------------
 drivers/staging/android/ion/ion_chunk_heap.c  |  2 -
 2 files changed, 3 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index 36df34c1ed53..051363a442dc 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -25,8 +25,6 @@
 #include "ion.h"
 #include "ion_priv.h"
 
-#include <asm/mach/map.h>
-
 struct ion_carveout_heap {
 	struct ion_heap heap;
 	struct gen_pool *pool;
@@ -109,49 +107,15 @@ void ion_carveout_heap_unmap_dma(struct ion_heap *heap,
 	sg_free_table(buffer->sg_table);
 }
 
-void *ion_carveout_heap_map_kernel(struct ion_heap *heap,
-				   struct ion_buffer *buffer)
-{
-	void *ret;
-	int mtype = MT_MEMORY_NONCACHED;
-
-	if (buffer->flags & ION_FLAG_CACHED)
-		mtype = MT_MEMORY;
-
-	ret = __arm_ioremap(buffer->priv_phys, buffer->size,
-			      mtype);
-	if (ret == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	return ret;
-}
-
-void ion_carveout_heap_unmap_kernel(struct ion_heap *heap,
-				    struct ion_buffer *buffer)
-{
-	__arm_iounmap(buffer->vaddr);
-	buffer->vaddr = NULL;
-	return;
-}
-
-int ion_carveout_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer,
-			       struct vm_area_struct *vma)
-{
-	return remap_pfn_range(vma, vma->vm_start,
-			       __phys_to_pfn(buffer->priv_phys) + vma->vm_pgoff,
-			       vma->vm_end - vma->vm_start,
-			       pgprot_noncached(vma->vm_page_prot));
-}
-
 static struct ion_heap_ops carveout_heap_ops = {
 	.allocate = ion_carveout_heap_allocate,
 	.free = ion_carveout_heap_free,
 	.phys = ion_carveout_heap_phys,
 	.map_dma = ion_carveout_heap_map_dma,
 	.unmap_dma = ion_carveout_heap_unmap_dma,
-	.map_user = ion_carveout_heap_map_user,
-	.map_kernel = ion_carveout_heap_map_kernel,
-	.unmap_kernel = ion_carveout_heap_unmap_kernel,
+	.map_user = ion_heap_map_user,
+	.map_kernel = ion_heap_map_kernel,
+	.unmap_kernel = ion_heap_unmap_kernel,
 };
 
 struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data)
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 62f7439e02b1..d3363d6088db 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -25,8 +25,6 @@
 #include "ion.h"
 #include "ion_priv.h"
 
-#include <asm/mach/map.h>
-
 struct ion_chunk_heap {
 	struct ion_heap heap;
 	struct gen_pool *pool;