powerpc: reserve fixmap entries for early debug
authorAlbert Herranz <albert_herranz@yahoo.es>
Sat, 12 Dec 2009 06:31:50 +0000 (06:31 +0000)
committerGrant Likely <grant.likely@secretlab.ca>
Sun, 13 Dec 2009 05:24:30 +0000 (22:24 -0700)
commitb8e8efaa86399c4424becd96402993cf230dab57
tree5fc7a8e27357569c8e54e62a715e2ff68c3fa0f6
parent08b95a7adba71a342aa152a695e75607102f484f
powerpc: reserve fixmap entries for early debug

Add a set of entries to the fixmap table to allow usage of known
reserved virtual address space by early debug code.

The address space reserved is the top 128K of the 32-bit address
space. This allows, if required, the use of a BAT to do the mappings.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
arch/powerpc/include/asm/fixmap.h