From 8fae831288210dae626e212aaab459154b65ed79 Mon Sep 17 00:00:00 2001 From: Rebecca Schultz Zavin Date: Fri, 13 Dec 2013 14:24:18 -0800 Subject: [PATCH] gpu: ion: Don't flush allocatoins that come from the page pools Signed-off-by: Rebecca Schultz Zavin [jstultz: modified patch to apply to staging directory] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_system_heap.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index ad4933e1b421..02726a9702b1 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -76,9 +76,14 @@ static struct page *alloc_buffer_page(struct ion_system_heap *heap, if (order > 4) gfp_flags = high_order_gfp_flags; page = alloc_pages(gfp_flags, order); + if (!page) + return 0; + __dma_page_cpu_to_dev(page, 0, PAGE_SIZE << order, + DMA_BIDIRECTIONAL); } if (!page) return 0; + if (split_pages) split_page(page, order); return page; @@ -201,9 +206,6 @@ static int ion_system_heap_allocate(struct ion_heap *heap, kfree(info); } - dma_sync_sg_for_device(NULL, table->sgl, table->nents, - DMA_BIDIRECTIONAL); - buffer->priv_virt = table; return 0; err1: -- 2.11.0