[PATCH 059/115] gpu: ion: Only flush buffers in the chunk heap if they were used cached

John Stultz
2013-12-13T22:37:25Z

From: Rebecca Schultz Zavin <rebecca@android.com>

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>
---
drivers/staging/android/ion/ion_chunk_heap.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 5582909..60cd91c 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -104,8 +104,9 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer)
ion_heap_buffer_zero(buffer);

for_each_sg(table->sgl, sg, table->nents, i) {
- __dma_page_cpu_to_dev(sg_page(sg), 0, sg_dma_len(sg),
- DMA_BIDIRECTIONAL);
+ if (ion_buffer_cached(buffer))
+ __dma_page_cpu_to_dev(sg_page(sg), 0, sg_dma_len(sg),
+ DMA_BIDIRECTIONAL);
gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
sg_dma_len(sg));
}
--
1.8.3.2