From 89636a06fa2ee7826a19c39c19a9bc99ab9340a9 Mon Sep 17 00:00:00 2001
From: Qiang Yu <yuq825@gmail.com>
Date: Sun, 31 Oct 2021 12:16:04 +0800
Subject: [PATCH] drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y
Git-commit: 89636a06fa2ee7826a19c39c19a9bc99ab9340a9
Patch-mainline: v5.17-rc1
References: git-fixes
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
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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)
--
2.31.1