|To:||Atsushi Nemoto <email@example.com>|
|Subject:||Re: [PATCH] TX49 has write buffer|
|From:||Sergei Shtylyov <firstname.lastname@example.org>|
|Date:||Sat, 19 Aug 2006 20:04:24 +0400|
|Cc:||email@example.com, firstname.lastname@example.org, email@example.com|
|Organization:||MontaVista Software Inc.|
|User-agent:||Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803|
Hello. Atsushi Nemoto wrote:
TX49 CPUs have a write buffer, so we need to select CPU_HAS_WB -- otherwise all Toshiba RBTX49xx kernels fail to build.
TX49 CPUs also have a SYNC instruction which flushes a write buffer. I think it is enough and wbflush() have been abused in arch/mips/tx4927/ and arch/mips/tx4938/ codes.
How about a patch? I needed the kernel up and running, so I came up with the obvious patch. I don't have no time to fix this assumed abuse. I should also note, that this patch wasn't enough to bring RBTX4938 kernel back to life since rbhma4500_defconfig is broken somewhere so the kernel doesn't output anything on the colsole). If I have some more time, I'll try to investigate what exactly was causing this (I have a working .config)...
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