From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Subject: Re: [PATCH master] mci: core: allocate memory used for DMA with dma_alloc
Date: Tue, 23 Apr 2024 08:26:02 +0200 [thread overview]
Message-ID: <171385356265.1710700.8314634744900159518.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20240423060435.1514644-1-a.fatoum@pengutronix.de>
On Tue, 23 Apr 2024 08:04:35 +0200, Ahmad Fatoum wrote:
> Memory allocated by normal malloc may not fulfill the alignment
> requirements for DMA.
>
> This fixes memory corruption observed on the i.MX8MP when the
> DMA-enabled eSDHC driver attempts to probe an eMMC.
>
> This issues always existed, but only after commit 65ef5d885263
> ("ARM64: let 'end' point after the range in cache functions"), the whole
> 512 bytes were getting invalidated, which corrupted the TLSF malloc
> header of the block after it.
>
> [...]
Applied, thanks!
[1/1] mci: core: allocate memory used for DMA with dma_alloc
https://git.pengutronix.de/cgit/barebox/commit/?id=b986aad24ab8 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2024-04-23 6:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-23 6:04 Ahmad Fatoum
2024-04-23 6:26 ` Sascha Hauer [this message]
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