| 1 | /* |
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| 2 | * Done by Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com> |
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| 3 | * This code is mostly taken from FreeBSD. |
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| 4 | * |
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| 5 | **************************************************************************** |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions |
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| 9 | * are met: |
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| 10 | * 1. Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * |
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 26 | * SUCH DAMAGE. |
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| 27 | * |
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| 28 | */ |
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| 29 | |
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| 30 | #ifndef _IA64_FPU_H_ |
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| 31 | #define _IA64_FPU_H_ |
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| 32 | |
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| 33 | #include "os.h" |
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| 34 | |
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| 35 | /* |
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| 36 | * Floating point status register bits. |
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| 37 | */ |
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| 38 | #define IA64_FPSR_TRAP_VD UL_CONST(0x0000000000000001) |
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| 39 | #define IA64_FPSR_TRAP_DD UL_CONST(0x0000000000000002) |
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| 40 | #define IA64_FPSR_TRAP_ZD UL_CONST(0x0000000000000004) |
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| 41 | #define IA64_FPSR_TRAP_OD UL_CONST(0x0000000000000008) |
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| 42 | #define IA64_FPSR_TRAP_UD UL_CONST(0x0000000000000010) |
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| 43 | #define IA64_FPSR_TRAP_ID UL_CONST(0x0000000000000020) |
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| 44 | #define IA64_FPSR_SF(i,v) ((v) << ((i)*13+6)) |
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| 45 | |
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| 46 | #define IA64_SF_FTZ UL_CONST(0x0001) |
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| 47 | #define IA64_SF_WRE UL_CONST(0x0002) |
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| 48 | #define IA64_SF_PC UL_CONST(0x000c) |
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| 49 | #define IA64_SF_PC_0 UL_CONST(0x0000) |
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| 50 | #define IA64_SF_PC_1 UL_CONST(0x0004) |
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| 51 | #define IA64_SF_PC_2 UL_CONST(0x0008) |
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| 52 | #define IA64_SF_PC_3 UL_CONST(0x000c) |
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| 53 | #define IA64_SF_RC UL_CONST(0x0030) |
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| 54 | #define IA64_SF_RC_NEAREST UL_CONST(0x0000) |
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| 55 | #define IA64_SF_RC_NEGINF UL_CONST(0x0010) |
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| 56 | #define IA64_SF_RC_POSINF UL_CONST(0x0020) |
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| 57 | #define IA64_SF_RC_TRUNC UL_CONST(0x0030) |
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| 58 | #define IA64_SF_TD UL_CONST(0x0040) |
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| 59 | #define IA64_SF_V UL_CONST(0x0080) |
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| 60 | #define IA64_SF_D UL_CONST(0x0100) |
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| 61 | #define IA64_SF_Z UL_CONST(0x0200) |
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| 62 | #define IA64_SF_O UL_CONST(0x0400) |
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| 63 | #define IA64_SF_U UL_CONST(0x0800) |
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| 64 | #define IA64_SF_I UL_CONST(0x1000) |
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| 65 | |
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| 66 | #define IA64_SF_DEFAULT (IA64_SF_PC_3 | IA64_SF_RC_NEAREST) |
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| 67 | |
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| 68 | #define IA64_FPSR_DEFAULT (IA64_FPSR_TRAP_VD \ |
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| 69 | | IA64_FPSR_TRAP_DD \ |
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| 70 | | IA64_FPSR_TRAP_ZD \ |
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| 71 | | IA64_FPSR_TRAP_OD \ |
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| 72 | | IA64_FPSR_TRAP_UD \ |
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| 73 | | IA64_FPSR_TRAP_ID \ |
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| 74 | | IA64_FPSR_SF(0, IA64_SF_DEFAULT) \ |
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| 75 | | IA64_FPSR_SF(1, (IA64_SF_DEFAULT \ |
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| 76 | | IA64_SF_TD \ |
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| 77 | | IA64_SF_WRE)) \ |
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| 78 | | IA64_FPSR_SF(2, (IA64_SF_DEFAULT \ |
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| 79 | | IA64_SF_TD)) \ |
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| 80 | | IA64_FPSR_SF(3, (IA64_SF_DEFAULT \ |
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| 81 | | IA64_SF_TD))) |
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| 82 | |
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| 83 | |
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| 84 | #ifndef __ASSEMBLY__ |
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| 85 | |
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| 86 | /* This is from sys/cdefs.h in FreeBSD */ |
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| 87 | #define __aligned(x) __attribute__((__aligned__(x))) |
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| 88 | |
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| 89 | /* A single Floating Point register. */ |
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| 90 | struct ia64_fpreg |
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| 91 | { |
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| 92 | uint8_t fpr_bits[16]; |
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| 93 | } __aligned(16); |
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| 94 | |
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| 95 | typedef struct ia64_fpreg ia64_fpreg_t; |
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| 96 | |
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| 97 | #endif /* __ASSEMBLY__ */ |
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| 98 | |
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| 99 | #endif /* _IA64_FPU_H_ */ |
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