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awilliam@xenbuild2.aw
8a9e0cc712
ia64 specific parts of mini-os. Minimal config: # Kernel image file. kernel = "mini-os.gz" # Initial memory allocation (in megabytes) for the new domain. memory = 64 # A name for your domain. name = "Mini-OS" Signed-off-by: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
100 lines
3.5 KiB
C
100 lines
3.5 KiB
C
/*
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* Done by Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
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* This code is mostly taken from FreeBSD.
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*
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****************************************************************************
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _IA64_FPU_H_
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#define _IA64_FPU_H_
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#include "os.h"
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/*
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* Floating point status register bits.
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*/
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#define IA64_FPSR_TRAP_VD UL_CONST(0x0000000000000001)
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#define IA64_FPSR_TRAP_DD UL_CONST(0x0000000000000002)
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#define IA64_FPSR_TRAP_ZD UL_CONST(0x0000000000000004)
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#define IA64_FPSR_TRAP_OD UL_CONST(0x0000000000000008)
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#define IA64_FPSR_TRAP_UD UL_CONST(0x0000000000000010)
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#define IA64_FPSR_TRAP_ID UL_CONST(0x0000000000000020)
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#define IA64_FPSR_SF(i,v) ((v) << ((i)*13+6))
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#define IA64_SF_FTZ UL_CONST(0x0001)
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#define IA64_SF_WRE UL_CONST(0x0002)
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#define IA64_SF_PC UL_CONST(0x000c)
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#define IA64_SF_PC_0 UL_CONST(0x0000)
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#define IA64_SF_PC_1 UL_CONST(0x0004)
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#define IA64_SF_PC_2 UL_CONST(0x0008)
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#define IA64_SF_PC_3 UL_CONST(0x000c)
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#define IA64_SF_RC UL_CONST(0x0030)
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#define IA64_SF_RC_NEAREST UL_CONST(0x0000)
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#define IA64_SF_RC_NEGINF UL_CONST(0x0010)
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#define IA64_SF_RC_POSINF UL_CONST(0x0020)
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#define IA64_SF_RC_TRUNC UL_CONST(0x0030)
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#define IA64_SF_TD UL_CONST(0x0040)
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#define IA64_SF_V UL_CONST(0x0080)
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#define IA64_SF_D UL_CONST(0x0100)
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#define IA64_SF_Z UL_CONST(0x0200)
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#define IA64_SF_O UL_CONST(0x0400)
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#define IA64_SF_U UL_CONST(0x0800)
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#define IA64_SF_I UL_CONST(0x1000)
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#define IA64_SF_DEFAULT (IA64_SF_PC_3 | IA64_SF_RC_NEAREST)
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#define IA64_FPSR_DEFAULT (IA64_FPSR_TRAP_VD \
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| IA64_FPSR_TRAP_DD \
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| IA64_FPSR_TRAP_ZD \
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| IA64_FPSR_TRAP_OD \
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| IA64_FPSR_TRAP_UD \
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| IA64_FPSR_TRAP_ID \
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| IA64_FPSR_SF(0, IA64_SF_DEFAULT) \
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| IA64_FPSR_SF(1, (IA64_SF_DEFAULT \
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| IA64_SF_TD \
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| IA64_SF_WRE)) \
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| IA64_FPSR_SF(2, (IA64_SF_DEFAULT \
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| IA64_SF_TD)) \
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| IA64_FPSR_SF(3, (IA64_SF_DEFAULT \
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| IA64_SF_TD)))
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#ifndef __ASSEMBLY__
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/* This is from sys/cdefs.h in FreeBSD */
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#define __aligned(x) __attribute__((__aligned__(x)))
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/* A single Floating Point register. */
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struct ia64_fpreg
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{
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uint8_t fpr_bits[16];
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} __aligned(16);
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typedef struct ia64_fpreg ia64_fpreg_t;
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#endif /* __ASSEMBLY__ */
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#endif /* _IA64_FPU_H_ */
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