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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc64/fpumacro.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-sparc64/fpumacro.h')
-rw-r--r--include/asm-sparc64/fpumacro.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-sparc64/fpumacro.h b/include/asm-sparc64/fpumacro.h
new file mode 100644
index 00000000000..d583e5efd75
--- /dev/null
+++ b/include/asm-sparc64/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) */