* [PATCH] mmc: bcm2835: Take SWIOTLB memory size limitation into account
@ 2019-08-24 6:31 Stefan Wahren
2019-08-27 13:49 ` Ulf Hansson
0 siblings, 1 reply; 2+ messages in thread
From: Stefan Wahren @ 2019-08-24 6:31 UTC (permalink / raw)
To: Ulf Hansson, Eric Anholt, Florian Fainelli, Ray Jui,
Scott Branden, Lukas Wunner
Cc: linux-mmc, Stefan Wahren, linux-arm-kernel
Make sure the sdhost driver doesn't use requests bigger than SWIOTLB
can handle.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
drivers/mmc/host/bcm2835.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 7e0d3a4..7ec0d95 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1314,7 +1314,7 @@ static int bcm2835_add_host(struct bcm2835_host *host)
}
mmc->max_segs = 128;
- mmc->max_req_size = 524288;
+ mmc->max_req_size = min_t(size_t, 524288, dma_max_mapping_size(dev));
mmc->max_seg_size = mmc->max_req_size;
mmc->max_blk_size = 1024;
mmc->max_blk_count = 65535;
--
2.7.4
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mmc: bcm2835: Take SWIOTLB memory size limitation into account
2019-08-24 6:31 [PATCH] mmc: bcm2835: Take SWIOTLB memory size limitation into account Stefan Wahren
@ 2019-08-27 13:49 ` Ulf Hansson
0 siblings, 0 replies; 2+ messages in thread
From: Ulf Hansson @ 2019-08-27 13:49 UTC (permalink / raw)
To: Stefan Wahren
Cc: Florian Fainelli, Scott Branden, Ray Jui, linux-mmc, Eric Anholt,
Lukas Wunner, Linux ARM
On Sat, 24 Aug 2019 at 08:31, Stefan Wahren <wahrenst@gmx.net> wrote:
>
> Make sure the sdhost driver doesn't use requests bigger than SWIOTLB
> can handle.
>
> Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Applies for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/bcm2835.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
> index 7e0d3a4..7ec0d95 100644
> --- a/drivers/mmc/host/bcm2835.c
> +++ b/drivers/mmc/host/bcm2835.c
> @@ -1314,7 +1314,7 @@ static int bcm2835_add_host(struct bcm2835_host *host)
> }
>
> mmc->max_segs = 128;
> - mmc->max_req_size = 524288;
> + mmc->max_req_size = min_t(size_t, 524288, dma_max_mapping_size(dev));
> mmc->max_seg_size = mmc->max_req_size;
> mmc->max_blk_size = 1024;
> mmc->max_blk_count = 65535;
> --
> 2.7.4
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-08-24 6:31 [PATCH] mmc: bcm2835: Take SWIOTLB memory size limitation into account Stefan Wahren
2019-08-27 13:49 ` Ulf Hansson
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