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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/unicore32/include/asm/fpu-ucf64.h
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/*

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 * linux/arch/unicore32/include/asm/fpu-ucf64.h

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 *

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 * Code specific to PKUnity SoC and UniCore ISA

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 *

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 *	Maintained by GUAN Xue-tao <[email protected]>

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 *	Copyright (C) 2001-2010 Guan Xuetao

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#define FPSCR			s31

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/* FPSCR bits */

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#define FPSCR_DEFAULT_NAN	(1<<25)

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#define FPSCR_CMPINSTR_BIT	(1<<31)

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#define FPSCR_CON		(1<<29)

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#define FPSCR_TRAP		(1<<27)

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/* RND mode */

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#define FPSCR_ROUND_NEAREST	(0<<0)

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#define FPSCR_ROUND_PLUSINF	(2<<0)

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#define FPSCR_ROUND_MINUSINF	(3<<0)

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#define FPSCR_ROUND_TOZERO	(1<<0)

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#define FPSCR_RMODE_BIT		(0)

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#define FPSCR_RMODE_MASK	(7 << FPSCR_RMODE_BIT)

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/* trap enable */

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#define FPSCR_IOE		(1<<16)

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#define FPSCR_OFE		(1<<14)

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#define FPSCR_UFE		(1<<13)

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#define FPSCR_IXE		(1<<12)

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#define FPSCR_HIE		(1<<11)

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#define FPSCR_NDE		(1<<10)	/* non denomal */

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/* flags */

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#define FPSCR_IDC		(1<<24)

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#define FPSCR_HIC		(1<<23)

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#define FPSCR_IXC		(1<<22)

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#define FPSCR_OFC		(1<<21)

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#define FPSCR_UFC		(1<<20)

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#define FPSCR_IOC		(1<<19)

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/* stick bits */

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#define FPSCR_IOS		(1<<9)

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#define FPSCR_OFS		(1<<7)

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#define FPSCR_UFS		(1<<6)

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#define FPSCR_IXS		(1<<5)

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#define FPSCR_HIS		(1<<4)

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#define FPSCR_NDS		(1<<3)	/*non denomal */

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