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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 05:38:34 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 05:38:34 +0400
commit0c4a479bdf7c0cf3fa1610b25e0c4ddd5b58713e (patch)
tree4d1f97d241b692ad8f7aeca9c5b773fbabfae258 /arch/ia64/include/uapi/asm/fpu.h
parentade0899b298ba2c43bfd6abd8cbc2545944cde0c (diff)
parentd536e0db2433686238ec97c517e4fc691000ee6f (diff)
downloadlinux-0c4a479bdf7c0cf3fa1610b25e0c4ddd5b58713e.tar.xz
Merge tag 'please-pull-dhowells-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull ia64 UAPI changes from Tony Luck: "ia64 pieces of David Howells great UAPI include file move" * tag 'please-pull-dhowells-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: UAPI: (Scripted) Disintegrate arch/ia64/include/asm
Diffstat (limited to 'arch/ia64/include/uapi/asm/fpu.h')
-rw-r--r--arch/ia64/include/uapi/asm/fpu.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/ia64/include/uapi/asm/fpu.h b/arch/ia64/include/uapi/asm/fpu.h
new file mode 100644
index 000000000000..b6395ad1500a
--- /dev/null
+++ b/arch/ia64/include/uapi/asm/fpu.h
@@ -0,0 +1,66 @@
+#ifndef _ASM_IA64_FPU_H
+#define _ASM_IA64_FPU_H
+
+/*
+ * Copyright (C) 1998, 1999, 2002, 2003 Hewlett-Packard Co
+ * David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#include <linux/types.h>
+
+/* floating point status register: */
+#define FPSR_TRAP_VD (1 << 0) /* invalid op trap disabled */
+#define FPSR_TRAP_DD (1 << 1) /* denormal trap disabled */
+#define FPSR_TRAP_ZD (1 << 2) /* zero-divide trap disabled */
+#define FPSR_TRAP_OD (1 << 3) /* overflow trap disabled */
+#define FPSR_TRAP_UD (1 << 4) /* underflow trap disabled */
+#define FPSR_TRAP_ID (1 << 5) /* inexact trap disabled */
+#define FPSR_S0(x) ((x) << 6)
+#define FPSR_S1(x) ((x) << 19)
+#define FPSR_S2(x) (__IA64_UL(x) << 32)
+#define FPSR_S3(x) (__IA64_UL(x) << 45)
+
+/* floating-point status field controls: */
+#define FPSF_FTZ (1 << 0) /* flush-to-zero */
+#define FPSF_WRE (1 << 1) /* widest-range exponent */
+#define FPSF_PC(x) (((x) & 0x3) << 2) /* precision control */
+#define FPSF_RC(x) (((x) & 0x3) << 4) /* rounding control */
+#define FPSF_TD (1 << 6) /* trap disabled */
+
+/* floating-point status field flags: */
+#define FPSF_V (1 << 7) /* invalid operation flag */
+#define FPSF_D (1 << 8) /* denormal/unnormal operand flag */
+#define FPSF_Z (1 << 9) /* zero divide (IEEE) flag */
+#define FPSF_O (1 << 10) /* overflow (IEEE) flag */
+#define FPSF_U (1 << 11) /* underflow (IEEE) flag */
+#define FPSF_I (1 << 12) /* inexact (IEEE) flag) */
+
+/* floating-point rounding control: */
+#define FPRC_NEAREST 0x0
+#define FPRC_NEGINF 0x1
+#define FPRC_POSINF 0x2
+#define FPRC_TRUNC 0x3
+
+#define FPSF_DEFAULT (FPSF_PC (0x3) | FPSF_RC (FPRC_NEAREST))
+
+/* This default value is the same as HP-UX uses. Don't change it
+ without a very good reason. */
+#define FPSR_DEFAULT (FPSR_TRAP_VD | FPSR_TRAP_DD | FPSR_TRAP_ZD \
+ | FPSR_TRAP_OD | FPSR_TRAP_UD | FPSR_TRAP_ID \
+ | FPSR_S0 (FPSF_DEFAULT) \
+ | FPSR_S1 (FPSF_DEFAULT | FPSF_TD | FPSF_WRE) \
+ | FPSR_S2 (FPSF_DEFAULT | FPSF_TD) \
+ | FPSR_S3 (FPSF_DEFAULT | FPSF_TD))
+
+# ifndef __ASSEMBLY__
+
+struct ia64_fpreg {
+ union {
+ unsigned long bits[2];
+ long double __dummy; /* force 16-byte alignment */
+ } u;
+};
+
+# endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_IA64_FPU_H */