summaryrefslogtreecommitdiff
path: root/arch/sparc/kernel/getsetcc.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/kernel/getsetcc.S')
-rw-r--r--arch/sparc/kernel/getsetcc.S24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/sparc/kernel/getsetcc.S b/arch/sparc/kernel/getsetcc.S
new file mode 100644
index 000000000000..a14d272d2061
--- /dev/null
+++ b/arch/sparc/kernel/getsetcc.S
@@ -0,0 +1,24 @@
+ .globl getcc
+ .type getcc,#function
+getcc:
+ ldx [%o0 + PT_V9_TSTATE], %o1
+ srlx %o1, 32, %o1
+ and %o1, 0xf, %o1
+ retl
+ stx %o1, [%o0 + PT_V9_G1]
+ .size getcc,.-getcc
+
+ .globl setcc
+ .type setcc,#function
+setcc:
+ ldx [%o0 + PT_V9_TSTATE], %o1
+ ldx [%o0 + PT_V9_G1], %o2
+ or %g0, %ulo(TSTATE_ICC), %o3
+ sllx %o3, 32, %o3
+ andn %o1, %o3, %o1
+ sllx %o2, 32, %o2
+ and %o2, %o3, %o2
+ or %o1, %o2, %o1
+ retl
+ stx %o1, [%o0 + PT_V9_TSTATE]
+ .size setcc,.-setcc