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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-12-16 02:04:49 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-12-16 02:04:49 -0800
commit348324c5b10bcba8d9daabdfb85a6927311be34f (patch)
treed06ca3a264407a14a1f36c1b798d6dc0dc1582d8 /arch/mips/kernel/genex.S
parent1e63bd9cc43db5400a1423a7ec8266b4e7c54bd0 (diff)
parent319e2e3f63c348a9b66db4667efa73178e18b17d (diff)
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Merge tag 'v3.13-rc4' into next
Synchronize with mainline to bring in the new keycode definitions and new hwmon API.
Diffstat (limited to 'arch/mips/kernel/genex.S')
-rw-r--r--arch/mips/kernel/genex.S14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 31fa856829cb..47d7583cd67f 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -374,12 +374,20 @@ NESTED(except_vec_nmi, 0, sp)
NESTED(nmi_handler, PT_SIZE, sp)
.set push
.set noat
+ /*
+ * Clear ERL - restore segment mapping
+ * Clear BEV - required for page fault exception handler to work
+ */
+ mfc0 k0, CP0_STATUS
+ ori k0, k0, ST0_EXL
+ li k1, ~(ST0_BEV | ST0_ERL)
+ and k0, k0, k1
+ mtc0 k0, CP0_STATUS
+ _ehb
SAVE_ALL
move a0, sp
jal nmi_exception_handler
- RESTORE_ALL
- .set mips3
- eret
+ /* nmi_exception_handler never returns */
.set pop
END(nmi_handler)