| commit | 9f4f04ba2b117a5c741d019629d7ffccdc621122 | [log] [tgz] |
|---|---|---|
| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | Tue Dec 29 05:10:58 2009 +0000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Fri Jan 15 13:20:07 2010 +1100 |
| tree | 3a96a7c0263b01b4706a665e9d9cbfc76d3f7011 | |
| parent | 004b35063296b6772fa72404a35b498f1e71e87e [diff] |
powerpc/8xx: Always pin kernel instruction TLB Various kernel asm modifies SRR0/SRR1 just before executing a rfi. If such code crosses a page boundary you risk a TLB miss which will clobber SRR0/SRR1. Avoid this by always pinning kernel instruction TLB space. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>