From: Sven Schnelle <svens@stackframe.org>
To: linux-mips@linux-mips.org
Cc: svens@stackframe.org
Subject: MIPS74K dma coherence issue
Date: Mon, 7 Nov 2016 20:41:27 +0100 [thread overview]
Message-ID: <20161107194128.25086-1-svens@stackframe.org> (raw)
Hi List,
i was debugging a nasty problem where DMA data was incorrect
after dma_unmap_single(). Reason was that cache wasn't flushed
after DMA. Attached patch fixes this.
Regards
Sven
next reply other threads:[~2016-11-07 19:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-07 19:41 Sven Schnelle [this message]
2016-11-07 19:41 ` [PATCH] MIPS: MIPS74K needs post dma flush Sven Schnelle
2016-11-07 20:06 ` Leonid Yegoshin
2016-11-07 20:06 ` Leonid Yegoshin
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