From: Robin Murphy Date: Thu, 3 Sep 2020 13:59:23 +0000 (+0100) Subject: drm/panfrost: Set DMA max segment size X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac5037afefd33fea9a9c1a4a5ac46ece396e7465;p=people%2Fms%2Flinux.git drm/panfrost: Set DMA max segment size Since all we do with scatterlists is map them in the MMU, we don't have any hardware constraints on how they're laid out. Let the DMA layer know so it won't warn when DMA API debugging is enabled. Signed-off-by: Robin Murphy Reviewed-by: Steven Price Signed-off-by: Steven Price Link: https://patchwork.freedesktop.org/patch/msgid/04371bc36512076b7feee07f854e56b80675d953.1599141563.git.robin.murphy@arm.com --- diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index e0f190e43813..eea049c640a6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -344,6 +344,7 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) dma_set_mask_and_coherent(pfdev->dev, DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features))); + dma_set_max_seg_size(pfdev->dev, UINT_MAX); irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu"); if (irq <= 0)