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| author | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2013-12-13 22:24:44 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-14 16:57:17 (GMT) |
| commit | 349c9e13855109df99c5205a4e8d53d9fa169490 (patch) | |
| tree | 73f79c4602efcda4fd35de98d29c6eb68e43e98c /drivers/staging/android/ion/ion_priv.h | |
| parent | 19007b1420ba6f780621aa2e710c44881e8be983 (diff) | |
| download | linux-349c9e13855109df99c5205a4e8d53d9fa169490.tar.xz | |
gpu: ion: add CMA heap
New heap type ION_HEAP_TYPE_DMA where allocation is done with dma_alloc_coherent API.
device coherent_dma_mask must be set to DMA_BIT_MASK(32).
ion_platform_heap private field is used to retrieve the device linked to CMA,
if NULL the default CMA area is used.
ion_cma_get_sgtable is a copy of dma_common_get_sgtable function which should
be in kernel 3.5
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
[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/ion/ion_priv.h')
| -rw-r--r-- | drivers/staging/android/ion/ion_priv.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h index bdc1e34..f5a09b6 100644 --- a/drivers/staging/android/ion/ion_priv.h +++ b/drivers/staging/android/ion/ion_priv.h @@ -270,6 +270,9 @@ void ion_carveout_heap_destroy(struct ion_heap *); struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *); void ion_chunk_heap_destroy(struct ion_heap *); +struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *); +void ion_cma_heap_destroy(struct ion_heap *); + /** * kernel api to allocate/free from carveout -- used when carveout is * used to back an architecture specific custom heap |