diff options
| author |   Ralf Baechle <ralf@linux-mips.org> | 2007-03-20 13:56:50 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-03-24 17:01:49 +0000 |
| commit | 7605b3906192a171e651076325b1ed1d5ea57ec9 (patch) | |
| tree | a86d308b36fda5297349691089a868208a5a9688 /arch/mips | |
| parent | [MIPS] Make MIPS udelay() preempt safe under DEBUG_PREEMPT (diff) | |
| download | linux-dev-7605b3906192a171e651076325b1ed1d5ea57ec9.tar.xz linux-dev-7605b3906192a171e651076325b1ed1d5ea57ec9.zip | |
[MIPS] Fix pipeline hazard.
In the the sequence:
ei
..
mfc0 $x, $status
the mfc0 may not see the SR_IE bit set. This was a deliberate bug in the
kernel code because we knew this was a safe thing to do on all R2 silicon
so far but new silicon is changing this.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
0 files changed, 0 insertions, 0 deletions