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| author | Steven J. Hill <Steven.Hill@imgtec.com> | 2013-03-25 12:15:55 -0500 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-05-09 17:55:18 +0200 |
| commit | 2a0b24f56c2492b932f1aed617ae80fb23500d21 (patch) | |
| tree | c9aec2872f912c65b83a92a66fe94f6006427d73 /arch/mips/kernel/smtc-asm.S | |
| parent | 102cedc32a6e3cd537374a3678d407591d5a6fab (diff) | |
| download | linux-2a0b24f56c2492b932f1aed617ae80fb23500d21.tar.bz2 | |
MIPS: microMIPS: Add support for exception handling.
All exceptions must be taken in microMIPS mode, never in classic
MIPS mode or the kernel falls apart. A few NOP instructions are
used to maintain the correct alignment of microMIPS versions of
the exception vectors.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Diffstat (limited to 'arch/mips/kernel/smtc-asm.S')
| -rw-r--r-- | arch/mips/kernel/smtc-asm.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S index 76016ac0a9c8..2866863a39df 100644 --- a/arch/mips/kernel/smtc-asm.S +++ b/arch/mips/kernel/smtc-asm.S @@ -49,6 +49,9 @@ CAN WE PROVE THAT WE WON'T DO THIS IF INTS DISABLED?? .text .align 5 FEXPORT(__smtc_ipi_vector) +#ifdef CONFIG_CPU_MICROMIPS + nop +#endif .set noat /* Disable thread scheduling to make Status update atomic */ DMT 27 # dmt k1 |