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| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2009-11-19 19:21:04 -0500 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 01:10:36 -0500 |
| commit | 60e071fee994ff98c37d03a4a7c5a3f8b1e3b8e5 (patch) | |
| tree | 4b42f796ec84bf1544f4779e5a95713c7253a41d /arch/powerpc/kernel/idle_e500.S | |
| parent | fe11dc3f9628e5393e932567b7e29d35cbbad136 (diff) | |
powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
dcbz, dcbf, dcbi, dcbst and icbi do not set DAR when they
cause a DTLB Error. Dectect this by tagging DAR with 0x00f0
at every exception exit that modifies DAR.
Test for DAR=0x00f0 in DataTLBError and bail
to handle_page_fault().
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/idle_e500.S')
0 files changed, 0 insertions, 0 deletions