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From: Qiang Yu <yuq825@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: lima@lists.freedesktop.org, David Airlie <airlied@linux.ie>,
	Daniel Vetter <daniel@ffwll.ch>,
	Erico Nunes <nunes.erico@gmail.com>,
	Vasily Khoruzhick <anarsoul@gmail.com>,
	Andreas Baierl <ichgeh@imkreisrum.de>,
	Qiang Yu <yuq825@gmail.com>,
	Roman Stratiienko <r.stratiienko@gmail.com>
Subject: [PATCH] drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y
Date: Sun, 31 Oct 2021 12:16:04 +0800	[thread overview]
Message-ID: <20211031041604.187216-1-yuq825@gmail.com> (raw)

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

Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
---
 drivers/gpu/drm/lima/lima_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/lima/lima_device.c b/drivers/gpu/drm/lima/lima_device.c
index 65fdca366e41..36c990589427 100644
--- a/drivers/gpu/drm/lima/lima_device.c
+++ b/drivers/gpu/drm/lima/lima_device.c
@@ -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)
-- 
2.25.1


             reply	other threads:[~2021-10-31  4:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-31  4:16 Qiang Yu [this message]
2021-10-31  5:06 ` [PATCH] drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y Vasily Khoruzhick

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