| To: | Jun Sun <jsun@mvista.com> |
|---|---|
| Subject: | Re: [PATCH] gettimeoffset for swarm |
| From: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
| Date: | Tue, 14 May 2002 15:18:49 +0200 (MET DST) |
| Cc: | ralf@oss.sgi.com, linux-mips@oss.sgi.com |
| In-reply-to: | <3CE073D0.8030402@mvista.com> |
| Organization: | Technical University of Gdansk |
| Sender: | owner-linux-mips@oss.sgi.com |
On Mon, 13 May 2002, Jun Sun wrote: > By default, swarm will use calibrate_div64_gettimeoffset(). That does > not work in SMP mode because the two cores have different counter register > value. This patch gives swarm its own and accurate gettimeoffset(). You may consider synchronising the counters as it's done for the i386, instead. See synchronize_tsc_ap(). It may be useful for other purposes as well. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + |
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