1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * linux/arch/arm/vfp/vfpinstr.h |
4 | * |
5 | * Copyright (C) 2004 ARM Limited. |
6 | * Written by Deep Blue Solutions Limited. |
7 | * |
8 | * VFP instruction masks. |
9 | */ |
10 | #define INST_CPRTDO(inst) (((inst) & 0x0f000000) == 0x0e000000) |
11 | #define INST_CPRT(inst) ((inst) & (1 << 4)) |
12 | #define INST_CPRT_L(inst) ((inst) & (1 << 20)) |
13 | #define INST_CPRT_Rd(inst) (((inst) & (15 << 12)) >> 12) |
14 | #define INST_CPRT_OP(inst) (((inst) >> 21) & 7) |
15 | #define INST_CPNUM(inst) ((inst) & 0xf00) |
16 | #define CPNUM(cp) ((cp) << 8) |
17 | |
18 | #define FOP_MASK (0x00b00040) |
19 | #define FOP_FMAC (0x00000000) |
20 | #define FOP_FNMAC (0x00000040) |
21 | #define FOP_FMSC (0x00100000) |
22 | #define FOP_FNMSC (0x00100040) |
23 | #define FOP_FMUL (0x00200000) |
24 | #define FOP_FNMUL (0x00200040) |
25 | #define FOP_FADD (0x00300000) |
26 | #define FOP_FSUB (0x00300040) |
27 | #define FOP_FDIV (0x00800000) |
28 | #define FOP_EXT (0x00b00040) |
29 | |
30 | #define FOP_TO_IDX(inst) ((inst & 0x00b00000) >> 20 | (inst & (1 << 6)) >> 4) |
31 | |
32 | #define FEXT_MASK (0x000f0080) |
33 | #define FEXT_FCPY (0x00000000) |
34 | #define FEXT_FABS (0x00000080) |
35 | #define FEXT_FNEG (0x00010000) |
36 | #define FEXT_FSQRT (0x00010080) |
37 | #define FEXT_FCMP (0x00040000) |
38 | #define FEXT_FCMPE (0x00040080) |
39 | #define FEXT_FCMPZ (0x00050000) |
40 | #define FEXT_FCMPEZ (0x00050080) |
41 | #define FEXT_FCVT (0x00070080) |
42 | #define FEXT_FUITO (0x00080000) |
43 | #define FEXT_FSITO (0x00080080) |
44 | #define FEXT_FTOUI (0x000c0000) |
45 | #define FEXT_FTOUIZ (0x000c0080) |
46 | #define FEXT_FTOSI (0x000d0000) |
47 | #define FEXT_FTOSIZ (0x000d0080) |
48 | |
49 | #define FEXT_TO_IDX(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7) |
50 | |
51 | #define vfp_get_sd(inst) ((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22) |
52 | #define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12 | (inst & (1 << 22)) >> 18) |
53 | #define vfp_get_sm(inst) ((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5) |
54 | #define vfp_get_dm(inst) ((inst & 0x0000000f) | (inst & (1 << 5)) >> 1) |
55 | #define vfp_get_sn(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7) |
56 | #define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16 | (inst & (1 << 7)) >> 3) |
57 | |
58 | #define vfp_single(inst) (((inst) & 0x0000f00) == 0xa00) |
59 | |
60 | #define FPSCR_N (1 << 31) |
61 | #define FPSCR_Z (1 << 30) |
62 | #define FPSCR_C (1 << 29) |
63 | #define FPSCR_V (1 << 28) |
64 | |
65 | #ifdef CONFIG_AS_VFP_VMRS_FPINST |
66 | |
67 | #define fmrx(_vfp_) ({ \ |
68 | u32 __v; \ |
69 | asm(".fpu vfpv2\n" \ |
70 | "vmrs %0, " #_vfp_ \ |
71 | : "=r" (__v) : : "cc"); \ |
72 | __v; \ |
73 | }) |
74 | |
75 | #define fmxr(_vfp_,_var_) \ |
76 | asm(".fpu vfpv2\n" \ |
77 | "vmsr " #_vfp_ ", %0" \ |
78 | : : "r" (_var_) : "cc") |
79 | |
80 | #else |
81 | |
82 | #define vfpreg(_vfp_) #_vfp_ |
83 | |
84 | #define fmrx(_vfp_) ({ \ |
85 | u32 __v; \ |
86 | asm("mrc p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmrx %0, " #_vfp_ \ |
87 | : "=r" (__v) : : "cc"); \ |
88 | __v; \ |
89 | }) |
90 | |
91 | #define fmxr(_vfp_,_var_) \ |
92 | asm("mcr p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \ |
93 | : : "r" (_var_) : "cc") |
94 | |
95 | #endif |
96 | |
97 | u32 vfp_single_cpdo(u32 inst, u32 fpscr); |
98 | u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs); |
99 | |
100 | u32 vfp_double_cpdo(u32 inst, u32 fpscr); |
101 | |