| To: | "Kevin D. Kissell" <kevink@mips.com> |
|---|---|
| Subject: | Re: wbflush() abuse for TOSHIBA_RBTX4927 |
| From: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
| Date: | Tue, 15 Apr 2003 18:25:38 +0200 (MET DST) |
| Cc: | linux-mips@linux-mips.org, source@mvista.com |
| In-reply-to: | <00ae01c3035e$d431aba0$10eca8c0@grendel> |
| Organization: | Technical University of Gdansk |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| Sender: | linux-mips-bounce@linux-mips.org |
On Tue, 15 Apr 2003, Kevin D. Kissell wrote: > I remember that some of the Toshiba parts of the TX39 series > had some interesting quirks relating to the write buffer. Perhaps > some of these were carried into the TX49 series as well? I suppose that's unrelated, since I'm specifically referring to the way the buffer is handled in the TOSHIBA_RBTX4927 code -- the __wbflush() backend is not invoked by wbflush() and calls like mb() (used by portable drivers) unless the kernel is configured in an unobvious way and then there is duplicate "sync" (but maybe that's needed, thus my question among others). Maciej -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + |
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