From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: linux-ide@vger.kernel.org
Subject: Re: [PATCH] fix pata-rb532-cf
Date: Sat, 01 Nov 2008 19:16:14 +0300 [thread overview]
Message-ID: <490C80CE.4090505@ru.mvista.com> (raw)
In-Reply-To: <20081101160930.GA10321@nuty>
Hello.
Phil Sutter wrote:
>> No. The alternatives would be to use local variable as a loop counter
>> or, better yet, using readsb()/writesb() instead of the loops...
>> Wait! The original driver used 32-bit I/O to this register, not 8-bit --
>> so it looks like you have artificially slowed it down... :-/
>>
>
> Ok, so this should be clear now. I changed the code to use readl() and
> writel() (the reads*() and writes*() versions sadly aren't useable as
> they increment the target memory pointer) which worked fine.
>
So what? This is perfectly valid. Doesn't the current code increment it?
MBR, Sergei
next prev parent reply other threads:[~2008-11-01 16:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-30 21:47 [PATCH] fix pata-rb532-cf Phil Sutter
2008-10-30 22:39 ` Florian Fainelli
2008-10-30 23:20 ` Sergei Shtylyov
2008-10-31 0:09 ` Phil Sutter
2008-10-31 10:38 ` Sergei Shtylyov
2008-10-31 11:08 ` Sergei Shtylyov
2008-11-01 16:09 ` Phil Sutter
2008-11-01 16:12 ` Phil Sutter
2008-11-01 16:26 ` Sergei Shtylyov
2008-11-01 16:45 ` Sergei Shtylyov
2008-11-01 16:45 ` Phil Sutter
2008-11-01 18:09 ` Phil Sutter
2008-11-01 18:11 ` [PATCH] read and write data in 4-byte blocks Phil Sutter
2008-11-01 18:21 ` Phil Sutter
2008-11-02 21:23 ` Sergei Shtylyov
2008-11-03 13:29 ` [PATCH] pata-rb532-cf: " Phil Sutter
2008-11-03 13:45 ` Bartlomiej Zolnierkiewicz
2008-11-04 6:01 ` Jeff Garzik
2008-11-04 12:35 ` Phil Sutter
2008-11-05 11:54 ` Sergei Shtylyov
2008-11-05 12:52 ` Phil Sutter
2008-11-02 22:04 ` [PATCH] fix pata-rb532-cf Sergei Shtylyov
2008-11-02 22:45 ` Phil Sutter
2008-11-01 16:16 ` Sergei Shtylyov [this message]
2008-11-12 0:13 ` Phil Sutter
2008-11-12 0:13 ` [PATCH] pata-rb532-cf: read/write data in 4-byte blocks Phil Sutter
2008-11-12 0:14 ` [PATCH] pata-rb532-cf: fix signature of the xfer function Phil Sutter
2008-11-12 2:26 ` Florian Fainelli
2008-11-12 10:54 ` Sergei Shtylyov
2008-11-12 2:25 ` [PATCH] pata-rb532-cf: read/write data in 4-byte blocks Florian Fainelli
2008-11-12 10:50 ` Sergei Shtylyov
2008-11-12 20:57 ` [PATCH] fix pata-rb532-cf Bartlomiej Zolnierkiewicz
2008-11-14 23:53 ` Jeff Garzik
2009-01-11 16:13 ` Florian Fainelli
2009-01-11 20:47 ` Phil Sutter
2009-01-12 14:32 ` Florian Fainelli
2009-01-12 17:48 ` Phil Sutter
-- strict thread matches above, loose matches on Subject: below --
2008-11-17 20:04 Phil Sutter
2008-11-23 22:56 ` Sergei Shtylyov
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