diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/vfp/vfpinstr.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/vfp/vfpinstr.h')
-rw-r--r-- | arch/arm/vfp/vfpinstr.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/arm/vfp/vfpinstr.h b/arch/arm/vfp/vfpinstr.h new file mode 100644 index 000000000000..6c819aeae006 --- /dev/null +++ b/arch/arm/vfp/vfpinstr.h | |||
@@ -0,0 +1,88 @@ | |||
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) | ||
55 | #define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12) | ||
56 | #define vfp_get_sm(inst) ((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5) | ||
57 | #define vfp_get_dm(inst) ((inst & 0x0000000f)) | ||
58 | #define vfp_get_sn(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7) | ||
59 | #define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16) | ||
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; \ | ||
76 | asm("mrc%? p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmrx %0, " #_vfp_ \ | ||
77 | : "=r" (__v)); \ | ||
78 | __v; \ | ||
79 | }) | ||
80 | |||
81 | #define fmxr(_vfp_,_var_) \ | ||
82 | asm("mcr%? p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \ | ||
83 | : : "r" (_var_)) | ||
84 | |||
85 | u32 vfp_single_cpdo(u32 inst, u32 fpscr); | ||
86 | u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs); | ||
87 | |||
88 | u32 vfp_double_cpdo(u32 inst, u32 fpscr); | ||