Merge commit '5bc66170dc486556a1e36fd384463536573f4b82' into x86/urgent

From Borislav Petkov <bp@amd64.org>:

Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.

This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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 00000000000..b6395ad1500
--- /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 */