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x86: SGI UV: Map low MMR ranges
authorJack Steiner <steiner@sgi.com>
Wed, 25 Nov 2009 16:20:19 +0000 (10:20 -0600)
committerIngo Molnar <mingo@elte.hu>
Thu, 26 Nov 2009 09:52:36 +0000 (10:52 +0100)
commit918bc960dc630b1a79c0d2991a81985812ff69f5
tree669b047aa43c2a0b42242fb84571ed58a20f7c0ctree | snapshot
parent163d3866cfa79aa5945f1ee5e43fb3ed1455f75ccommit | diff
x86: SGI UV: Map low MMR ranges

Explicitly mmap the UV chipset MMR address ranges used to
access blade-local registers. Although these same MMRs are also
mmaped at higher addresses, the low range is more
convenient when accessing blade-local registers.

The low range addresses always alias to the local blade
regardless of the blade id.

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20091125162018.GA25445@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/apic/x2apic_uv_x.c diff | blob | history
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