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video: rockchip: mpp: fix jpege dma coherence issue

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Allocate multiple jpeg enc cores to encode the same frame at the same time,
and than there is a dma cache coherence issue when the user
space copies bitstream data to another buffer.

So, need to invalid cache after every core encoding done.

Signed-off-by: Yandong Lin <yandong.lin@rock-chips.com>
Change-Id: I0868398f09787cdbd2be6f6a2cd3c1adbe61e4b5
This commit is contained in:
Yandong Lin
2022-11-29 21:49:41 +08:00
committed by Tao Huang
parent 9461447888
commit 56353bf118
1 changed files with 5 additions and 4 deletions
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9
drivers/video/rockchip/mpp/mpp_vepu2.c
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@@ -202,12 +202,13 @@ static int vepu_process_reg_fd(struct mpp_session *session,
if (fmt == VEPU2_FMT_JPEGE) {
task->offset_bs = mpp_query_reg_offset_info(&task->off_inf, VEPU2_REG_OUT_INDEX);
if (task->offset_bs > 0)
task->dmabuf_bs = dma_buf_get(fd_bs);
task->dmabuf_bs = dma_buf_get(fd_bs);
if (IS_ERR_OR_NULL(task->dmabuf_bs))
if (IS_ERR_OR_NULL(task->dmabuf_bs)) {
task->dmabuf_bs = NULL;
else
return 0;
}
if (task->offset_bs > 0)
dma_buf_end_cpu_access_partial(task->dmabuf_bs, DMA_TO_DEVICE, 0,
task->offset_bs);
}