This is a note to let you know that I've just added the patch titled
drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-lima-fix-warning-when-config_debug_sg-y-config_d.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d8cb401c0921edec2a234cba4624aed961dbcaf3
Author: Qiang Yu <yuq825@xxxxxxxxx>
Date: Sun Oct 31 12:16:04 2021 +0800
drm/lima: fix warning when CONFIG_DEBUG_SG=y & CONFIG_DMA_API_DEBUG=y
[ 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@xxxxxxxxx>
Reported-by: Roman Stratiienko <r.stratiienko@xxxxxxxxx>
Signed-off-by: Qiang Yu <yuq825@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20211031041604.187216-1-yuq825@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/lima/lima_device.c b/drivers/gpu/drm/lima/lima_device.c
index 65fdca366e41f..36c9905894278 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)
