1 files changed, 113 insertions, 0 deletions
diff --git a/arch/mips/include/asm/fpregdef.h b/arch/mips/include/asm/fpregdef.h
new file mode 100644
index 000000000..f184ba088
--- /dev/null
+++ b/arch/mips/include/asm/fpregdef.h
@@ -0,0 +1,113 @@
+/*
+ * Definitions for the FPU register names
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1999 Ralf Baechle
+ * Copyright (C) 1985 MIPS Computer Systems, Inc.
+ * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_FPREGDEF_H
+#define _ASM_FPREGDEF_H
+
+#include <asm/sgidefs.h>
+
+/*
+ * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing
+ * hardfloat and softfloat object files.  The kernel build uses soft-float by
+ * default, so we also need to pass -msoft-float along to GAS if it supports it.
+ * But this in turn causes assembler errors in files which access hardfloat
+ * registers.  We detect if GAS supports "-msoft-float" in the Makefile and
+ * explicitly put ".set hardfloat" where floating point registers are touched.
+ */
+#ifdef GAS_HAS_SET_HARDFLOAT
+#define SET_HARDFLOAT .set hardfloat
+#else
+#define SET_HARDFLOAT
+#endif
+
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+
+/*
+ * These definitions only cover the R3000-ish 16/32 register model.
+ * But we're trying to be R3000 friendly anyway ...
+ */
+#define fv0	$f0	 /* return value */
+#define fv0f	$f1
+#define fv1	$f2
+#define fv1f	$f3
+#define fa0	$f12	 /* argument registers */
+#define fa0f	$f13
+#define fa1	$f14
+#define fa1f	$f15
+#define ft0	$f4	 /* caller saved */
+#define ft0f	$f5
+#define ft1	$f6
+#define ft1f	$f7
+#define ft2	$f8
+#define ft2f	$f9
+#define ft3	$f10
+#define ft3f	$f11
+#define ft4	$f16
+#define ft4f	$f17
+#define ft5	$f18
+#define ft5f	$f19
+#define fs0	$f20	 /* callee saved */
+#define fs0f	$f21
+#define fs1	$f22
+#define fs1f	$f23
+#define fs2	$f24
+#define fs2f	$f25
+#define fs3	$f26
+#define fs3f	$f27
+#define fs4	$f28
+#define fs4f	$f29
+#define fs5	$f30
+#define fs5f	$f31
+
+#define fcr31	$31	 /* FPU status register */
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
+
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
+
+#define fv0	$f0	/* return value */
+#define fv1	$f2
+#define fa0	$f12	/* argument registers */
+#define fa1	$f13
+#define fa2	$f14
+#define fa3	$f15
+#define fa4	$f16
+#define fa5	$f17
+#define fa6	$f18
+#define fa7	$f19
+#define ft0	$f4	/* caller saved */
+#define ft1	$f5
+#define ft2	$f6
+#define ft3	$f7
+#define ft4	$f8
+#define ft5	$f9
+#define ft6	$f10
+#define ft7	$f11
+#define ft8	$f20
+#define ft9	$f21
+#define ft10	$f22
+#define ft11	$f23
+#define ft12	$f1
+#define ft13	$f3
+#define fs0	$f24	/* callee saved */
+#define fs1	$f25
+#define fs2	$f26
+#define fs3	$f27
+#define fs4	$f28
+#define fs5	$f29
+#define fs6	$f30
+#define fs7	$f31
+
+#define fcr31	$31
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
+
+#endif /* _ASM_FPREGDEF_H */