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gerrit-public.fairphone.software / kernel / msm-4.19 / ed8bfd5c1ca6e2911c797da611fdada958ab44c0 / . / arch / arm / vfp / vfpinstr.h
blob: 15b95b5ab97ea6e149efce7bf316a896b2b014c4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * linux/arch/arm/vfp/vfpinstr.h
3 *
4 * Copyright (C) 2004 ARM Limited.
5 * Written by Deep Blue Solutions Limited.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * VFP instruction masks.
12 */
13#define INST_CPRTDO(inst) (((inst) & 0x0f000000) == 0x0e000000)
14#define INST_CPRT(inst) ((inst) & (1 << 4))
15#define INST_CPRT_L(inst) ((inst) & (1 << 20))
16#define INST_CPRT_Rd(inst) (((inst) & (15 << 12)) >> 12)
17#define INST_CPRT_OP(inst) (((inst) >> 21) & 7)
18#define INST_CPNUM(inst) ((inst) & 0xf00)
19#define CPNUM(cp) ((cp) << 8)
20
21#define FOP_MASK (0x00b00040)
22#define FOP_FMAC (0x00000000)
23#define FOP_FNMAC (0x00000040)
24#define FOP_FMSC (0x00100000)
25#define FOP_FNMSC (0x00100040)
26#define FOP_FMUL (0x00200000)
27#define FOP_FNMUL (0x00200040)
28#define FOP_FADD (0x00300000)
29#define FOP_FSUB (0x00300040)
30#define FOP_FDIV (0x00800000)
31#define FOP_EXT (0x00b00040)
32
33#define FOP_TO_IDX(inst) ((inst & 0x00b00000) >> 20 | (inst & (1 << 6)) >> 4)
34
35#define FEXT_MASK (0x000f0080)
36#define FEXT_FCPY (0x00000000)
37#define FEXT_FABS (0x00000080)
38#define FEXT_FNEG (0x00010000)
39#define FEXT_FSQRT (0x00010080)
40#define FEXT_FCMP (0x00040000)
41#define FEXT_FCMPE (0x00040080)
42#define FEXT_FCMPZ (0x00050000)
43#define FEXT_FCMPEZ (0x00050080)
44#define FEXT_FCVT (0x00070080)
45#define FEXT_FUITO (0x00080000)
46#define FEXT_FSITO (0x00080080)
47#define FEXT_FTOUI (0x000c0000)
48#define FEXT_FTOUIZ (0x000c0080)
49#define FEXT_FTOSI (0x000d0000)
50#define FEXT_FTOSIZ (0x000d0080)
51
52#define FEXT_TO_IDX(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
53
54#define vfp_get_sd(inst) ((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22)
Catalin Marinas25ebee02007-09-25 15:22:24 +0100[diff] [blame]55#define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12 | (inst & (1 << 22)) >> 18)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]56#define vfp_get_sm(inst) ((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5)
Catalin Marinas25ebee02007-09-25 15:22:24 +0100[diff] [blame]57#define vfp_get_dm(inst) ((inst & 0x0000000f) | (inst & (1 << 5)) >> 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]58#define vfp_get_sn(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
Catalin Marinas25ebee02007-09-25 15:22:24 +0100[diff] [blame]59#define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16 | (inst & (1 << 7)) >> 3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]60
61#define vfp_single(inst) (((inst) & 0x0000f00) == 0xa00)
62
63#define FPSCR_N (1 << 31)
64#define FPSCR_Z (1 << 30)
65#define FPSCR_C (1 << 29)
66#define FPSCR_V (1 << 28)
67
68/*
69 * Since we aren't building with -mfpu=vfp, we need to code
70 * these instructions using their MRC/MCR equivalents.
71 */
72#define vfpreg(_vfp_) #_vfp_
73
74#define fmrx(_vfp_) ({ \
75 u32 __v; \
Daniel Jacobowitz6a39dd62006-08-30 15:02:08 +0100[diff] [blame]76 asm("mrc p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmrx %0, " #_vfp_ \
77 : "=r" (__v) : : "cc"); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]78 __v; \
79 })
80
81#define fmxr(_vfp_,_var_) \
Daniel Jacobowitz6a39dd62006-08-30 15:02:08 +0100[diff] [blame]82 asm("mcr p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \
83 : : "r" (_var_) : "cc")
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]84
85u32 vfp_single_cpdo(u32 inst, u32 fpscr);
86u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs);
87
88u32 vfp_double_cpdo(u32 inst, u32 fpscr);