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From: Johannes Berg <>
To: Dan Williams <>
Cc: Dave Jiang <>,,
	Geert Uytterhoeven <>
Subject: Re: [PATCH] dmaengine: ioat: depends on !UML
Date: Wed, 25 Aug 2021 15:41:04 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Wed, 2021-08-25 at 06:36 -0700, Dan Williams wrote:
> > > > 
> > > > The problem here is that cpuid_eax() and cpuid_ebx() don't even exist on

> It can't compile because the arch dependencies are not stubbed out
> like other arch specific helpers. I think this is something to revisit
> if / when concepts similar to the "enqcmd" instruction appear on other
> archs.

I think you're confusing ioat and idxd? :)

The ioat driver (which this patch is against) uses cpuid_eax() and
cpuid_ebx() above, and really if a driver uses that then it can only
possibly run on IA :)

I'm not sure it makes sense to abstract out things such as
dca_enabled_in_bios() to a general architecture thing either?


  reply	other threads:[~2021-08-25 13:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-09  9:24 [PATCH] dmaengine: ioat: depends on !UML Johannes Berg
2021-08-09 16:02 ` Dave Jiang
2021-08-09 17:24 ` Dan Williams
2021-08-09 17:26   ` Johannes Berg
2021-08-25 13:31     ` Dan Williams
2021-08-25 13:33       ` Johannes Berg
2021-08-25 13:36         ` Dan Williams
2021-08-25 13:41           ` Johannes Berg [this message]
2021-08-25 13:53             ` Dan Williams
2021-08-25 11:31 ` Vinod Koul

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