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Re: flush_cache_range

To: Tom Appermont <tea@sonycom.com>
Subject: Re: flush_cache_range
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Tue, 25 Sep 2001 16:47:53 +0200
Cc: linux-mips@oss.sgi.com
In-reply-to: <20010925093258.A16068@sonycom.com>; from tea@sonycom.com on Tue, Sep 25, 2001 at 09:32:58AM +0200
References: <20010925093258.A16068@sonycom.com>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.2.5i
On Tue, Sep 25, 2001 at 09:32:58AM +0200, Tom Appermont wrote:

> Can someone explain me why start and end parameters are ignored in
> r4k_flush_cache_range_d32i32() and cache range flushing operations
> for other platforms?

Afair the reason was that most invokations cover a range that is larger than
the entire cache anyway so our implementation in practice doesn't cause
any harm.

  Ralf

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