diff options
| author | Rebecca Schultz Zavin <rebecca@android.com> | 2013-12-13 14:23:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-14 08:55:37 -0800 |
| commit | ce1f147a2ed5ed468ad3a2f8418dddfd205d1fd9 (patch) | |
| tree | 675dbea9659e9d889ee9b59ce1c564f551e971cd /drivers/staging/android | |
| parent | 29ae6bc7123f2d2d6796ac81c013bbfdd0a0a8d5 (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.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/android')
| -rw-r--r-- | drivers/staging/android/ion/ion.c | 8 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion.h | 13 |
2 files changed, 14 insertions, 7 deletions
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index b95202b0a51..7ff9983c8eb 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -616,8 +616,8 @@ void ion_client_destroy(struct ion_client *client) kfree(client); } -struct sg_table *ion_map_dma(struct ion_client *client, - struct ion_handle *handle) +struct sg_table *ion_sg_table(struct ion_client *client, + struct ion_handle *handle) { struct ion_buffer *buffer; struct sg_table *table; @@ -635,10 +635,6 @@ struct sg_table *ion_map_dma(struct ion_client *client, return table; } -void ion_unmap_dma(struct ion_client *client, struct ion_handle *handle) -{ -} - static struct sg_table *ion_map_dma_buf(struct dma_buf_attachment *attachment, enum dma_data_direction direction) { diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h index 84ca2a98ae8..28810c8295b 100644 --- a/drivers/staging/android/ion/ion.h +++ b/drivers/staging/android/ion/ion.h @@ -149,7 +149,7 @@ 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 @@ -159,6 +159,17 @@ 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 |