diff options
| author | Rebecca Schultz Zavin <rebecca@android.com> | 2012-05-23 12:55:55 -0700 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2012-07-18 14:40:44 +0530 |
| commit | 4cf2972ff44d78dda7bc1aee288915ab50ce9155 (patch) | |
| tree | bf1c8751313dbe5f91c875484a206fa9e19b1525 /include/linux/ion.h | |
| parent | 72fd968a507c1eb7e5a033501794a10872374f42 (diff) | |
gpu: ion: Get an sg_table from an ion handle
This patch adds an interface to return and sg_table given a
valid ion handle.
Change-Id: Icd948c60c1af0a4279f337bcd591cd39b46325e8
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
Diffstat (limited to 'include/linux/ion.h')
| -rw-r--r-- | include/linux/ion.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/ion.h b/include/linux/ion.h index 269d6de574f6..eeded60d4235 100644 --- a/include/linux/ion.h +++ b/include/linux/ion.h @@ -152,7 +152,7 @@ void ion_free(struct ion_client *client, struct ion_handle *handle); * 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_map_dma should be used + * 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 @@ -162,6 +162,17 @@ int ion_phys(struct ion_client *client, struct ion_handle *handle, ion_phys_addr_t *addr, size_t *len); /** + * ion_map_dma - return an sg_table describing a handle + * @client: the client + * @handle: the handle + * + * This function returns the sg_table describing + * a particular ion handle. + */ +struct sg_table *ion_sg_table(struct ion_client *client, + struct ion_handle *handle); + +/** * ion_map_kernel - create mapping for the given handle * @client: the client * @handle: handle to map |