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Message-Id: <1466193408-3832-3-git-send-email-labbott@redhat.com>
Date: Fri, 17 Jun 2016 12:56:45 -0700
From: Laura Abbott <labbott@...hat.com>
To: Sumit Semwal <sumit.semwal@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Arve Hjønnevåg <arve@...roid.com>,
Riley Andrews <riandrews@...roid.com>
Cc: Laura Abbott <labbott@...hat.com>, linaro-mm-sig@...ts.linaro.org,
linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
Android Kernel Team <kernel-team@...roid.com>
Subject: [PATCH 2/5] staging: android: ion: Drop ion_phys interface
ion_phys was an interface used for older legacy behavior. sg_tables
are the standard now. Get rid of it.
Signed-off-by: Laura Abbott <labbott@...hat.com>
---
drivers/staging/android/ion/ion.c | 26 -------------------------
drivers/staging/android/ion/ion.h | 19 ------------------
drivers/staging/android/ion/ion_carveout_heap.c | 14 -------------
drivers/staging/android/ion/ion_cma_heap.c | 18 -----------------
drivers/staging/android/ion/ion_priv.h | 11 +----------
drivers/staging/android/ion/ion_system_heap.c | 12 ------------
6 files changed, 1 insertion(+), 99 deletions(-)
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 95b18ac..bcf113f 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -576,32 +576,6 @@ void ion_free(struct ion_client *client, struct ion_handle *handle)
}
EXPORT_SYMBOL(ion_free);
-int ion_phys(struct ion_client *client, struct ion_handle *handle,
- ion_phys_addr_t *addr, size_t *len)
-{
- struct ion_buffer *buffer;
- int ret;
-
- mutex_lock(&client->lock);
- if (!ion_handle_validate(client, handle)) {
- mutex_unlock(&client->lock);
- return -EINVAL;
- }
-
- buffer = handle->buffer;
-
- if (!buffer->heap->ops->phys) {
- pr_err("%s: ion_phys is not implemented by this heap (name=%s, type=%d).\n",
- __func__, buffer->heap->name, buffer->heap->type);
- mutex_unlock(&client->lock);
- return -ENODEV;
- }
- mutex_unlock(&client->lock);
- ret = buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
- return ret;
-}
-EXPORT_SYMBOL(ion_phys);
-
static void *ion_buffer_kmap_get(struct ion_buffer *buffer)
{
void *vaddr;
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index 225c34a..97eb7a7 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -130,25 +130,6 @@ struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
void ion_free(struct ion_client *client, struct ion_handle *handle);
/**
- * ion_phys - returns the physical address and len of a handle
- * @client: the client
- * @handle: the handle
- * @addr: a pointer to put the address in
- * @len: a pointer to put the length in
- *
- * This function queries the heap for a particular handle to get the
- * handle's physical address. It't output is only correct if
- * a heap returns physically contiguous memory -- in other cases
- * this api should not be implemented -- ion_sg_table should be used
- * instead. Returns -EINVAL if the handle is invalid. This has
- * no implications on the reference counting of the handle --
- * the returned value may not be valid if the caller is not
- * holding a reference.
- */
-int ion_phys(struct ion_client *client, struct ion_handle *handle,
- ion_phys_addr_t *addr, size_t *len);
-
-/**
* ion_map_kernel - create mapping for the given handle
* @client: the client
* @handle: handle to map
diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index 1fb0d81..25b969b 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -56,19 +56,6 @@ void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr,
gen_pool_free(carveout_heap->pool, addr, size);
}
-static int ion_carveout_heap_phys(struct ion_heap *heap,
- struct ion_buffer *buffer,
- ion_phys_addr_t *addr, size_t *len)
-{
- struct sg_table *table = buffer->priv_virt;
- struct page *page = sg_page(table->sgl);
- ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page));
-
- *addr = paddr;
- *len = buffer->size;
- return 0;
-}
-
static int ion_carveout_heap_allocate(struct ion_heap *heap,
struct ion_buffer *buffer,
unsigned long size, unsigned long align,
@@ -138,7 +125,6 @@ static void ion_carveout_heap_unmap_dma(struct ion_heap *heap,
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_heap_map_user,
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index a3446da..0828e33 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -105,23 +105,6 @@ static void ion_cma_free(struct ion_buffer *buffer)
kfree(info);
}
-/* return physical address in addr */
-static int ion_cma_phys(struct ion_heap *heap, struct ion_buffer *buffer,
- ion_phys_addr_t *addr, size_t *len)
-{
- struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap);
- struct device *dev = cma_heap->dev;
- struct ion_cma_buffer_info *info = buffer->priv_virt;
-
- dev_dbg(dev, "Return buffer %p physical address %pa\n", buffer,
- &info->handle);
-
- *addr = info->handle;
- *len = buffer->size;
-
- return 0;
-}
-
static struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap,
struct ion_buffer *buffer)
{
@@ -164,7 +147,6 @@ static struct ion_heap_ops ion_cma_ops = {
.free = ion_cma_free,
.map_dma = ion_cma_heap_map_dma,
.unmap_dma = ion_cma_heap_unmap_dma,
- .phys = ion_cma_phys,
.map_user = ion_cma_mmap,
.map_kernel = ion_cma_map_kernel,
.unmap_kernel = ion_cma_unmap_kernel,
diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h
index 0239883..141fb0d7 100644
--- a/drivers/staging/android/ion/ion_priv.h
+++ b/drivers/staging/android/ion/ion_priv.h
@@ -42,8 +42,6 @@ struct ion_buffer *ion_handle_buffer(struct ion_handle *handle);
* @size: size of the buffer
* @priv_virt: private data to the buffer representable as
* a void *
- * @priv_phys: private data to the buffer representable as
- * an ion_phys_addr_t (and someday a phys_addr_t)
* @lock: protects the buffers cnt fields
* @kmap_cnt: number of times the buffer is mapped to the kernel
* @vaddr: the kernel mapping if kmap_cnt is not zero
@@ -69,10 +67,7 @@ struct ion_buffer {
unsigned long flags;
unsigned long private_flags;
size_t size;
- union {
- void *priv_virt;
- ion_phys_addr_t priv_phys;
- };
+ void *priv_virt;
struct mutex lock;
int kmap_cnt;
void *vaddr;
@@ -91,8 +86,6 @@ void ion_buffer_destroy(struct ion_buffer *buffer);
* struct ion_heap_ops - ops to operate on a given heap
* @allocate: allocate memory
* @free: free memory
- * @phys get physical address of a buffer (only define on
- * physically contiguous heaps)
* @map_dma map the memory for dma to a scatterlist
* @unmap_dma unmap the memory for dma
* @map_kernel map memory to the kernel
@@ -111,8 +104,6 @@ struct ion_heap_ops {
struct ion_buffer *buffer, unsigned long len,
unsigned long align, unsigned long flags);
void (*free)(struct ion_buffer *buffer);
- int (*phys)(struct ion_heap *heap, struct ion_buffer *buffer,
- ion_phys_addr_t *addr, size_t *len);
struct sg_table * (*map_dma)(struct ion_heap *heap,
struct ion_buffer *buffer);
void (*unmap_dma)(struct ion_heap *heap, struct ion_buffer *buffer);
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index b69dfc7..02bae94 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -386,17 +386,6 @@ static void ion_system_contig_heap_free(struct ion_buffer *buffer)
kfree(table);
}
-static int ion_system_contig_heap_phys(struct ion_heap *heap,
- struct ion_buffer *buffer,
- ion_phys_addr_t *addr, size_t *len)
-{
- struct sg_table *table = buffer->priv_virt;
- struct page *page = sg_page(table->sgl);
- *addr = page_to_phys(page);
- *len = buffer->size;
- return 0;
-}
-
static struct sg_table *ion_system_contig_heap_map_dma(struct ion_heap *heap,
struct ion_buffer *buffer)
{
@@ -411,7 +400,6 @@ static void ion_system_contig_heap_unmap_dma(struct ion_heap *heap,
static struct ion_heap_ops kmalloc_ops = {
.allocate = ion_system_contig_heap_allocate,
.free = ion_system_contig_heap_free,
- .phys = ion_system_contig_heap_phys,
.map_dma = ion_system_contig_heap_map_dma,
.unmap_dma = ion_system_contig_heap_unmap_dma,
.map_kernel = ion_heap_map_kernel,
--
2.5.5
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