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authorAl Viro <viro@zeniv.linux.org.uk>2014-12-08 20:39:29 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-08 20:39:29 -0500
commitba00410b8131b23edfb0e09f8b6dd26c8eb621fb (patch)
treec08504e4d2fa51ac91cef544f336d0169806c49f /arch/mips/kernel/r4k_switch.S
parent8ce74dd6057832618957fc2cbd38fa959c3a0a6c (diff)
parentaa583096d9767892983332e7c1a984bd17e3cd39 (diff)
Merge branch 'iov_iter' into for-next
Diffstat (limited to 'arch/mips/kernel/r4k_switch.S')
-rw-r--r--arch/mips/kernel/r4k_switch.S15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 4c4ec1812420..64591e671878 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -22,6 +22,9 @@
#include <asm/asmmacro.h>
+/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
+#undef fp
+
/*
* Offset to the current process status flags, the first 32 bytes of the
* stack are not used.
@@ -65,8 +68,12 @@
bgtz a3, 1f
/* Save 128b MSA vector context + scalar FP control & status. */
+ .set push
+ SET_HARDFLOAT
cfc1 t1, fcr31
msa_save_all a0
+ .set pop /* SET_HARDFLOAT */
+
sw t1, THREAD_FCR31(a0)
b 2f
@@ -161,6 +168,9 @@ LEAF(_init_msa_upper)
#define FPU_DEFAULT 0x00000000
+ .set push
+ SET_HARDFLOAT
+
LEAF(_init_fpu)
mfc0 t0, CP0_STATUS
li t1, ST0_CU1
@@ -232,7 +242,8 @@ LEAF(_init_fpu)
#ifdef CONFIG_CPU_MIPS32_R2
.set push
- .set mips64r2
+ .set mips32r2
+ .set fp=64
sll t0, t0, 5 # is Status.FR set?
bgez t0, 1f # no: skip setting upper 32b
@@ -291,3 +302,5 @@ LEAF(_init_fpu)
#endif
jr ra
END(_init_fpu)
+
+ .set pop /* SET_HARDFLOAT */