drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y
authorQiang Yu <yuq825@gmail.com>
Sun, 31 Oct 2021 04:16:04 +0000 (12:16 +0800)
committerQiang Yu <yuq825@gmail.com>
Sat, 6 Nov 2021 03:34:43 +0000 (11:34 +0800)
Otherwise get following warning:

DMA-API: lima 1c40000.gpu: mapping sg segment longer than device claims to support [len=4149248] [max=65536]

See: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5496

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211031041604.187216-1-yuq825@gmail.com
drivers/gpu/drm/lima/lima_device.c

index 65fdca3..36c9905 100644 (file)
@@ -357,6 +357,7 @@ int lima_device_init(struct lima_device *ldev)
        int err, i;
 
        dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
+       dma_set_max_seg_size(ldev->dev, UINT_MAX);
 
        err = lima_clk_init(ldev);
        if (err)