On 04/27/2016 02:00 PM, Marek Szyprowski wrote: > All multimedia devices found on Exynos SoCs support only contiguous > buffers, so set DMA max segment size to DMA_BIT_MASK(32) to let memory > allocator to correctly create contiguous memory mappings. > > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > --- > This patch was posted earlier as a part of > http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/97316 > thread, but applying it is really needed to get all Exynos multimedia > drivers working with IOMMU enabled. > > Best regards, > Marek Szyprowski > --- > drivers/media/platform/exynos-gsc/gsc-core.c | 1 + > drivers/media/platform/exynos4-is/fimc-core.c | 1 + > drivers/media/platform/exynos4-is/fimc-is.c | 1 + > drivers/media/platform/exynos4-is/fimc-lite.c | 1 + > drivers/media/platform/s5p-g2d/g2d.c | 1 + > drivers/media/platform/s5p-jpeg/jpeg-core.c | 1 + > drivers/media/platform/s5p-mfc/s5p_mfc.c | 2 ++ > drivers/media/platform/s5p-tv/mixer_video.c | 1 + > 8 files changed, 9 insertions(+) > > diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c > index 9b9e423..4f90be4 100644 > --- a/drivers/media/platform/exynos-gsc/gsc-core.c > +++ b/drivers/media/platform/exynos-gsc/gsc-core.c > @@ -1140,6 +1140,7 @@ static int gsc_probe(struct platform_device *pdev) > goto err_m2m; > > /* Initialize continious memory allocator */ Typo: continious -> contiguous Regards, Hans > + vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); > gsc->alloc_ctx = vb2_dma_contig_init_ctx(dev); > if (IS_ERR(gsc->alloc_ctx)) { > ret = PTR_ERR(gsc->alloc_ctx); > diff --git a/drivers/media/platform/exynos4-is/fimc-core.c b/drivers/media/platform/exynos4-is/fimc-core.c > index cef2a7f..368e19b 100644 > --- a/drivers/media/platform/exynos4-is/fimc-core.c > +++ b/drivers/media/platform/exynos4-is/fimc-core.c > @@ -1019,6 +1019,7 @@ static int fimc_probe(struct platform_device *pdev) > } > > /* Initialize contiguous memory allocator */ > + vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); > fimc->alloc_ctx = vb2_dma_contig_init_ctx(dev); > if (IS_ERR(fimc->alloc_ctx)) { > ret = PTR_ERR(fimc->alloc_ctx); > diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c > index 979c388..3f50856 100644 > --- a/drivers/media/platform/exynos4-is/fimc-is.c > +++ b/drivers/media/platform/exynos4-is/fimc-is.c > @@ -847,6 +847,7 @@ static int fimc_is_probe(struct platform_device *pdev) > if (ret < 0) > goto err_pm; > > + vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); > is->alloc_ctx = vb2_dma_contig_init_ctx(dev); > if (IS_ERR(is->alloc_ctx)) { > ret = PTR_ERR(is->alloc_ctx); > diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c > index dc1b929..95841c8 100644 > --- a/drivers/media/platform/exynos4-is/fimc-lite.c > +++ b/drivers/media/platform/exynos4-is/fimc-lite.c > @@ -1551,6 +1551,7 @@ static int fimc_lite_probe(struct platform_device *pdev) > goto err_sd; > } > > + vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); > fimc->alloc_ctx = vb2_dma_contig_init_ctx(dev); > if (IS_ERR(fimc->alloc_ctx)) { > ret = PTR_ERR(fimc->alloc_ctx); > diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c > index 74bd46c..5048b68 100644 > --- a/drivers/media/platform/s5p-g2d/g2d.c > +++ b/drivers/media/platform/s5p-g2d/g2d.c > @@ -681,6 +681,7 @@ static int g2d_probe(struct platform_device *pdev) > goto put_clk_gate; > } > > + vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); > dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); > if (IS_ERR(dev->alloc_ctx)) { > ret = PTR_ERR(dev->alloc_ctx); > diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c > index c3b13a6..e535ccf 100644 > --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c > +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c > @@ -2838,6 +2838,7 @@ static int s5p_jpeg_probe(struct platform_device *pdev) > goto device_register_rollback; > } > > + vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); > jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); > if (IS_ERR(jpeg->alloc_ctx)) { > v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); > diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c > index 927ab49..ae0bf26 100644 > --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c > +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c > @@ -1164,11 +1164,13 @@ static int s5p_mfc_probe(struct platform_device *pdev) > } > } > > + vb2_dma_contig_set_max_seg_size(dev->mem_dev_l, DMA_BIT_MASK(32)); > dev->alloc_ctx[0] = vb2_dma_contig_init_ctx(dev->mem_dev_l); > if (IS_ERR(dev->alloc_ctx[0])) { > ret = PTR_ERR(dev->alloc_ctx[0]); > goto err_res; > } > + vb2_dma_contig_set_max_seg_size(dev->mem_dev_r, DMA_BIT_MASK(32)); > dev->alloc_ctx[1] = vb2_dma_contig_init_ctx(dev->mem_dev_r); > if (IS_ERR(dev->alloc_ctx[1])) { > ret = PTR_ERR(dev->alloc_ctx[1]); > diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c > index d9e7f03..17d6df7 100644 > --- a/drivers/media/platform/s5p-tv/mixer_video.c > +++ b/drivers/media/platform/s5p-tv/mixer_video.c > @@ -80,6 +80,7 @@ int mxr_acquire_video(struct mxr_device *mdev, > goto fail; > } > > + vb2_dma_contig_set_max_seg_size(mdev->dev, DMA_BIT_MASK(32)); > mdev->alloc_ctx = vb2_dma_contig_init_ctx(mdev->dev); > if (IS_ERR(mdev->alloc_ctx)) { > mxr_err(mdev, "could not acquire vb2 allocator\n"); > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
