8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
29 lines
980 B
Diff
29 lines
980 B
Diff
From 7a943644cc71cd4381cb8b503eef53ef18672855 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Fri, 10 Jan 2025 16:33:13 +0000
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Subject: [PATCH] mmc: bcm2835-sdhost Observe SWIOTLB memory limit
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Make sure the sdhost driver doesn't use requests bigger than SWIOTLB
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can handle.
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Copied from [1].
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Link: https://github.com/raspberrypi/linux/issues/6589
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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[1] d4dd9bccf485 ("mmc: bcm2835: Take SWIOTLB memory size limitation
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into account")
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---
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drivers/mmc/host/bcm2835-sdhost.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/mmc/host/bcm2835-sdhost.c
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+++ b/drivers/mmc/host/bcm2835-sdhost.c
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@@ -1971,7 +1971,7 @@ static int bcm2835_sdhost_add_host(struc
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}
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mmc->max_segs = 128;
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- mmc->max_req_size = 524288;
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+ mmc->max_req_size = min_t(size_t, 524288, dma_max_mapping_size(&pdev->dev));
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mmc->max_seg_size = mmc->max_req_size;
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mmc->max_blk_size = 512;
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mmc->max_blk_count = 65535;
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