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Re: [PATCH] fast path for rdhwr emulation for TLS

To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Subject: Re: [PATCH] fast path for rdhwr emulation for TLS
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 14 Sep 2006 18:28:05 +0100
Cc: linux-mips@linux-mips.org, macro@linux-mips.org
In-reply-to: <20060710.234010.07457279.anemo@mba.ocn.ne.jp>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060708.011245.82794581.anemo@mba.ocn.ne.jp> <Pine.LNX.4.64N.0607071715360.25285@blysk.ds.pg.gda.pl> <20060709.011259.92587435.anemo@mba.ocn.ne.jp> <20060710.234010.07457279.anemo@mba.ocn.ne.jp>
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On Mon, Jul 10, 2006 at 11:40:10PM +0900, Atsushi Nemoto wrote:

> Add special short path for emulationg RDHWR which is used to support
> TLS.  The handle_tlbl synthesizer takes a care for
> cpu_has_vtag_icache.

I'm just wondering if we actually need such optimizations.  Have you ran
any application benchmarks?

  Ralf

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