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Re: [PATCH] remove redundant r4k_blast_icache() calls

To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Subject: Re: [PATCH] remove redundant r4k_blast_icache() calls
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 14 Nov 2006 17:00:06 +0000
Cc: linux-mips@linux-mips.org
In-reply-to: <20060822.211547.92587044.nemoto@toshiba-tops.co.jp>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060822.211547.92587044.nemoto@toshiba-tops.co.jp>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.4.2.2i
On Tue, Aug 22, 2006 at 09:15:47PM +0900, Atsushi Nemoto wrote:

> @@ -385,7 +382,6 @@ static inline void local_r4k_flush_cache
>               return;
>  
>       r4k_blast_dcache();
> -     r4k_blast_icache();
>  
>       /*
>        * Kludge alert.  For obscure reasons R4000SC and R4400SC go nuts if we

R4000 / R4400 SC and MC indexed S-cache ops also affected the primary
caches so this code ends unnecessarily blowing away the D-cache twice.

  Ralf

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