[PATCH master 0/2] mci: sdhci: fix memory corruption on DMA
Sascha Hauer
sha at pengutronix.de
Tue Sep 12 02:19:13 PDT 2023
On Mon, Sep 11, 2023 at 02:11:54PM +0200, Ahmad Fatoum wrote:
> Recent changes to teach SDHCI 64-bit support inadvertently changed
> the address used for cache maintenance away from the DMA buffer address
> with the result that unrelated cache lines were dropped and memory
> corruption. This series fixes this. I must admit I don't understand
> how the SDMA boundary mechanism works, so I did not change too much
> about it.
>
> Ahmad Fatoum (2):
> mci: sdhci: unmap the DMA buffers actually used
> mci: sdhci: hardcode SDMA boundary for DMA
Applied, thanks
Sascha
>
> drivers/mci/sdhci.c | 9 ++-------
> drivers/mci/sdhci.h | 3 +++
> 2 files changed, 5 insertions(+), 7 deletions(-)
>
> --
> 2.39.2
>
>
>
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