Commit ac5037af authored Sep 03, 2020 by Robin Murphy Committed by Steven Price Sep 10, 2020

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 <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/04371bc36512076b7feee07f854e56b80675d953.1599141563.git.robin.murphy@arm.com

parent 14929c5a

drivers/gpu/drm/panfrost/panfrost_gpu.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)