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| author | Robin Getz <robin.getz@analog.com> | 2009-07-09 15:11:52 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-07-16 01:52:48 -0400 |
| commit | f574a76a3b19848ac61814756716e26f85f2c3f7 (patch) | |
| tree | ba5f326f1bdfd22deacce491835a678fe3b83a1f /arch/blackfin/kernel | |
| parent | c70c754ff916cedd969a73549799d2167ffefcd6 (diff) | |
| download | op-kernel-dev-f574a76a3b19848ac61814756716e26f85f2c3f7.zip op-kernel-dev-f574a76a3b19848ac61814756716e26f85f2c3f7.tar.gz | |
Blackfin: work around anomaly 05000189
Similar to anomaly 05000281 but not as bad, we cannot return to the
instruction causing a fault otherwise we'll trigger a second false
exception. The system can still recover, but it isn't correct.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/kernel')
| -rw-r--r-- | arch/blackfin/kernel/traps.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 9efac0f..bf2b2d1 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -621,7 +621,8 @@ asmlinkage void trap_c(struct pt_regs *fp) } if ((ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8)) || - (ANOMALY_05000281 && trapnr == VEC_HWERR)) + (ANOMALY_05000281 && trapnr == VEC_HWERR) || + (ANOMALY_05000189 && (trapnr == VEC_CPLB_I_VL || trapnr == VEC_CPLB_VL))) fp->pc = SAFE_USER_INSTRUCTION; traps_done: |
