From: Paul Mundt <lethal@linux-sh.org>
To: linux-sh@vger.kernel.org
Subject: Re: [PATCH v3] sh: sh2a: Improve cache flush/invalidate functions
Date: Thu, 12 Jan 2012 04:11:30 +0000 [thread overview]
Message-ID: <20120112041130.GB28470@linux-sh.org> (raw)
In-Reply-To: <1326125327-30189-1-git-send-email-phil.edworthy@renesas.com>
On Mon, Jan 09, 2012 at 04:08:47PM +0000, Phil Edworthy wrote:
> The cache functions lock out interrupts for long periods; this patch
> reduces the impact when operating on large address ranges. In such
> cases it will:
> - Invalidate the entire cache rather than individual addresses.
> - Do nothing when flushing the operand cache in write-through mode.
> - When flushing the operand cache in write-back mdoe, index the
> search for matching addresses on the cache entires instead of the
> addresses to flush
>
> Note: sh2a__flush_purge_region was only invalidating the operand
> cache, this adds flush.
>
> Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
> ---
> v3:
> 1. Refactored code to make it readable and correct formatting.
> 2. Added code to handle flushing large address ranges in
> write-back mode.
>
Looks good. Applied, thanks Phil.
prev parent reply other threads:[~2012-01-12 4:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-09 16:08 [PATCH v3] sh: sh2a: Improve cache flush/invalidate functions Phil Edworthy
2012-01-12 4:11 ` Paul Mundt [this message]
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