Messages in this thread | | | From | James Cleverdon <> | Subject | Re: [PATCH 2/2][2.5]Unisys ES7000 platform subarch | Date | Wed, 11 Jun 2003 14:52:24 -0700 |
| |
On Wednesday 11 June 2003 08:56 am, Mika Penttilä wrote: > Just out of curiosity, what are "Physical Cluster" and "Logical > Cluster"? This terminology doesn't appear in Intel documentation. > AFAIK, IPIs are currently always sent using logical destination mode, > and in your patch ioapic entries have logical mode in cluster case. So > where does physical cluster come into play? > > --Mika
Starting with P4s, Intel has enabled physical interrupts that correctly use the upper nibble of the destination field when clustered addressing mode is turned on. Hence the name "Physical Cluster", even if it may not be official terminology.
-- James Cleverdon IBM xSeries Linux Solutions {jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot com
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |