From: David Howells <dhowells@redhat.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: ppc-dev <linuxppc-dev@ozlabs.org>, paulus@samba.org
Subject: Re: [POWERPC] convert string i/o operations to C
Date: Tue, 19 Sep 2006 13:42:58 +0100 [thread overview]
Message-ID: <28673.1158669778@warthog.cambridge.redhat.com> (raw)
In-Reply-To: <20060919222351.d27a1a06.sfr@canb.auug.org.au>
Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> +void _insb(volatile u8 __iomem *port, void *buf, int ns)
> +{
> + asm volatile("sync");
> + if (ns <= 0)
> + return;
What is "ns" meant to do? It seems to degrade the _insb() op to just a sync,
but is that correct?
David
next prev parent reply other threads:[~2006-09-19 12:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-19 12:23 [POWERPC] convert string i/o operations to C Stephen Rothwell
2006-09-19 12:42 ` David Howells [this message]
2006-09-19 23:07 ` Stephen Rothwell
2006-09-19 18:29 ` Linas Vepstas
2006-09-19 18:52 ` Kim Phillips
2006-09-19 18:58 ` Matt Sealey
2006-09-19 19:10 ` Segher Boessenkool
2006-09-19 19:20 ` Matt Sealey
2006-09-19 19:47 ` Segher Boessenkool
2006-09-19 23:17 ` Benjamin Herrenschmidt
2006-09-19 23:14 ` Benjamin Herrenschmidt
2006-09-19 19:04 ` Linas Vepstas
2006-09-19 19:06 ` Segher Boessenkool
2006-09-19 23:12 ` Benjamin Herrenschmidt
2006-09-20 0:03 ` Segher Boessenkool
2006-09-20 0:08 ` Benjamin Herrenschmidt
2006-09-20 0:29 ` Segher Boessenkool
2006-09-20 3:35 ` Stephen Rothwell
2006-09-20 4:38 ` Michael Ellerman
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