powerpc/slb: Add documentation on runtime patching of SLB encoding
authorAnshuman Khandual <khandual@linux.vnet.ibm.com>
Wed, 29 Jul 2015 07:10:02 +0000 (12:40 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 12 Aug 2015 05:04:52 +0000 (15:04 +1000)
commit79d0be7407955a268bcee5a33e338e14fdc74bfa
treee58dd02d7b1188ac5c2fd0c276a42275d730902e
parent2be682af48e8236558da702fe67e178cfe7524a1
powerpc/slb: Add documentation on runtime patching of SLB encoding

This patch adds some documentation to patch_slb_encoding() explaining
how it works.

Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
[mpe: Update change log and mention the signedness of the immediate]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/mm/slb.c