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authorDavid S. Miller <davem@davemloft.net>2008-04-28 00:47:20 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-28 00:47:20 -0700
commit6eda3a75928a3dc1072dfffd228ab818869d83ad (patch)
tree56e44907f23134273fe383424c69df4d62c6544c /arch/sparc64/kernel/getsetcc.S
parent194f1a68b93e959ede6ec363db4714e630bdbb6a (diff)
sparc64: Split entry.S up into seperate files.
entry.S was a hodge-podge of several totally unrelated sets of assembler routines, ranging from FPU trap handlers to hypervisor call functions. Split it up into topic-sized pieces. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/getsetcc.S')
-rw-r--r--arch/sparc64/kernel/getsetcc.S24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/getsetcc.S b/arch/sparc64/kernel/getsetcc.S
new file mode 100644
index 000000000000..a14d272d2061
--- /dev/null
+++ b/arch/sparc64/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