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Date: Mon, 7 Nov 2016 12:06:18 -0800
From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
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Subject: Re: MIPS: MIPS74K needs post dma flush
References: <20161107194128.25086-2-svens@stackframe.org>
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To: Sven Schnelle <svens@stackframe.org>, linux-mips@linux-mips.org
Message-ID: <20161107200618.SI_iWWeT_3ByNsQQRTPVlMxwf14Buw9FB1oF7WNWazY@z>

74K does NOT have an aggressive speculation, never for D-Cache, never 
for I-cache. D-Cache doesn't an advance speculation load at all, I-cache 
never does a wrong speculation.

So, post-DMA flush is not needed in any form.

- Leonid.