diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/ia64/include/uapi/asm/fpu.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/ia64/include/uapi/asm/fpu.h')
-rw-r--r-- | kernel/arch/ia64/include/uapi/asm/fpu.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/kernel/arch/ia64/include/uapi/asm/fpu.h b/kernel/arch/ia64/include/uapi/asm/fpu.h new file mode 100644 index 000000000..b6395ad15 --- /dev/null +++ b/kernel/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 */ |