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WIP: media: s5p-mfc: Allow cache hints for queues

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Passing V4L2_MEMORY_FLAG_NON_COHERENT from userspace significantly
improves video rendering performance on Exynos 5422 (Odroid XU4).

Signed-off-by: Pavel Golikov <Paullo612@ya.ru>
This commit is contained in:
Pavel Golikov
2022-06-24 15:56:05 +00:00
committed by Mauro (mdrjr) Ribeiro
parent 6ee7f6c619
commit bfd383cd5f
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
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@@ -876,6 +876,7 @@ static int s5p_mfc_open(struct file *file)
q->dma_attrs = DMA_ATTR_ALLOC_SINGLE_PAGES;
q->mem_ops = &vb2_dma_contig_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
q->allow_cache_hints = 1;
ret = vb2_queue_init(q);
if (ret) {
mfc_err("Failed to initialize videobuf2 queue(capture)\n");
@@ -911,6 +912,7 @@ static int s5p_mfc_open(struct file *file)
q->dma_attrs = DMA_ATTR_ALLOC_SINGLE_PAGES;
q->mem_ops = &vb2_dma_contig_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
q->allow_cache_hints = 1;
ret = vb2_queue_init(q);
if (ret) {
mfc_err("Failed to initialize videobuf2 queue(output)\n");