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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-07 16:11:56 (GMT) |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-13 20:26:13 (GMT) |
| commit | 70d2b5958a04139fbffecf27791cf913dce8038e (patch) | |
| tree | 7df7a5b793bf53dfd319faac4f711487770511ef /arch/tile/kernel/intvec_64.S | |
| parent | dadf78bf0359ee87a9d0b19ce42dbce7d0a72a61 (diff) | |
| download | linux-fsl-qoriq-70d2b5958a04139fbffecf27791cf913dce8038e.tar.xz | |
tile: improve illegal translation interrupt handling
First, don't re-enable interrupts blindly in the Linux trap handler.
We already handle page faults this way; synchronous interrupts like
ILL_TRANS will fire even when interrupts are disabled, and we don't
want to re-enable interrupts in that case.
For ILL_TRANS, we now pass the ILL_VA_PC reason into the trap handler
so we can report it properly; this is the address that caused the
illegal translation trap. We print the address as part of the
pr_alert() message now if it's coming from the kernel.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/intvec_64.S')
| -rw-r--r-- | arch/tile/kernel/intvec_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index 38a60f2..562886d 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -492,7 +492,7 @@ intvec_\vecname: mfspr r3, SPR_SYSTEM_SAVE_K_2 /* info about page fault */ .else .ifc \vecnum, INT_ILL_TRANS - mfspr r2, ILL_TRANS_REASON + mfspr r2, ILL_VA_PC .else .ifc \vecnum, INT_DOUBLE_FAULT mfspr r2, SPR_SYSTEM_SAVE_K_2 /* double fault info from HV */ |