From: Qiang Yu yuq825@gmail.com
stable inclusion from stable-v5.10.94 commit b207356933f4593071bbd95da2bb12eaa762a66f bugzilla: https://gitee.com/openeuler/kernel/issues/I531X9
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 89636a06fa2ee7826a19c39c19a9bc99ab9340a9 ]
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... Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.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)