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authorIngo Molnar <mingo@elte.hu>2008-07-28 23:32:00 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-28 23:32:00 +0200
commit9e3ee1c39c0cc71222f9980ccbf87fe072897eef (patch)
tree99462000e6f0d4f907cb2fc690f19d4d441ba0f3 /arch/sparc/include/asm/fpumacro.h
parente56b3bc7942982ac2589c942fb345e38bc7a341a (diff)
parentf934fb19ef34730263e6afc01e8ec27a8a71470f (diff)
downloadop-kernel-dev-9e3ee1c39c0cc71222f9980ccbf87fe072897eef.zip
op-kernel-dev-9e3ee1c39c0cc71222f9980ccbf87fe072897eef.tar.gz
Merge branch 'linus' into cpus4096
Conflicts: kernel/stop_machine.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/fpumacro.h')
-rw-r--r--arch/sparc/include/asm/fpumacro.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/fpumacro.h b/arch/sparc/include/asm/fpumacro.h
new file mode 100644
index 0000000..cc463fe
--- /dev/null
+++ b/arch/sparc/include/asm/fpumacro.h
@@ -0,0 +1,33 @@
+/* fpumacro.h: FPU related macros.
+ *
+ * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef _SPARC64_FPUMACRO_H
+#define _SPARC64_FPUMACRO_H
+
+#include <asm/asi.h>
+#include <asm/visasm.h>
+
+struct fpustate {
+ u32 regs[64];
+};
+
+#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)
+
+static inline unsigned long fprs_read(void)
+{
+ unsigned long retval;
+
+ __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
+
+ return retval;
+}
+
+static inline void fprs_write(unsigned long val)
+{
+ __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
+}
+
+#endif /* !(_SPARC64_FPUMACRO_H) */
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