← Back to branch summary

~ubuntu-branches/ubuntu/precise/linux-lowlatency/precise

« back to all changes in this revision

Viewing changes to arch/arm/include/asm/vfp.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

Show diffs side-by-side

added added

removed removed

Lines of Context:
arch/arm/include/asm/vfp.h
 
1
/*
 
2
 * arch/arm/include/asm/vfp.h
 
3
 *
 
4
 * VFP register definitions.
 
5
 * First, the standard VFP set.
 
6
 */
 
7
 
 
8
#define FPSID                   cr0
 
9
#define FPSCR                   cr1
 
10
#define MVFR1                   cr6
 
11
#define MVFR0                   cr7
 
12
#define FPEXC                   cr8
 
13
#define FPINST                  cr9
 
14
#define FPINST2                 cr10
 
15
 
 
16
/* FPSID bits */
 
17
#define FPSID_IMPLEMENTER_BIT   (24)
 
18
#define FPSID_IMPLEMENTER_MASK  (0xff << FPSID_IMPLEMENTER_BIT)
 
19
#define FPSID_SOFTWARE          (1<<23)
 
20
#define FPSID_FORMAT_BIT        (21)
 
21
#define FPSID_FORMAT_MASK       (0x3  << FPSID_FORMAT_BIT)
 
22
#define FPSID_NODOUBLE          (1<<20)
 
23
#define FPSID_ARCH_BIT          (16)
 
24
#define FPSID_ARCH_MASK         (0xF  << FPSID_ARCH_BIT)
 
25
#define FPSID_PART_BIT          (8)
 
26
#define FPSID_PART_MASK         (0xFF << FPSID_PART_BIT)
 
27
#define FPSID_VARIANT_BIT       (4)
 
28
#define FPSID_VARIANT_MASK      (0xF  << FPSID_VARIANT_BIT)
 
29
#define FPSID_REV_BIT           (0)
 
30
#define FPSID_REV_MASK          (0xF  << FPSID_REV_BIT)
 
31
 
 
32
/* FPEXC bits */
 
33
#define FPEXC_EX                (1 << 31)
 
34
#define FPEXC_EN                (1 << 30)
 
35
#define FPEXC_DEX               (1 << 29)
 
36
#define FPEXC_FP2V              (1 << 28)
 
37
#define FPEXC_VV                (1 << 27)
 
38
#define FPEXC_TFV               (1 << 26)
 
39
#define FPEXC_LENGTH_BIT        (8)
 
40
#define FPEXC_LENGTH_MASK       (7 << FPEXC_LENGTH_BIT)
 
41
#define FPEXC_IDF               (1 << 7)
 
42
#define FPEXC_IXF               (1 << 4)
 
43
#define FPEXC_UFF               (1 << 3)
 
44
#define FPEXC_OFF               (1 << 2)
 
45
#define FPEXC_DZF               (1 << 1)
 
46
#define FPEXC_IOF               (1 << 0)
 
47
#define FPEXC_TRAP_MASK         (FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF)
 
48
 
 
49
/* FPSCR bits */
 
50
#define FPSCR_DEFAULT_NAN       (1<<25)
 
51
#define FPSCR_FLUSHTOZERO       (1<<24)
 
52
#define FPSCR_ROUND_NEAREST     (0<<22)
 
53
#define FPSCR_ROUND_PLUSINF     (1<<22)
 
54
#define FPSCR_ROUND_MINUSINF    (2<<22)
 
55
#define FPSCR_ROUND_TOZERO      (3<<22)
 
56
#define FPSCR_RMODE_BIT         (22)
 
57
#define FPSCR_RMODE_MASK        (3 << FPSCR_RMODE_BIT)
 
58
#define FPSCR_STRIDE_BIT        (20)
 
59
#define FPSCR_STRIDE_MASK       (3 << FPSCR_STRIDE_BIT)
 
60
#define FPSCR_LENGTH_BIT        (16)
 
61
#define FPSCR_LENGTH_MASK       (7 << FPSCR_LENGTH_BIT)
 
62
#define FPSCR_IOE               (1<<8)
 
63
#define FPSCR_DZE               (1<<9)
 
64
#define FPSCR_OFE               (1<<10)
 
65
#define FPSCR_UFE               (1<<11)
 
66
#define FPSCR_IXE               (1<<12)
 
67
#define FPSCR_IDE               (1<<15)
 
68
#define FPSCR_IOC               (1<<0)
 
69
#define FPSCR_DZC               (1<<1)
 
70
#define FPSCR_OFC               (1<<2)
 
71
#define FPSCR_UFC               (1<<3)
 
72
#define FPSCR_IXC               (1<<4)
 
73
#define FPSCR_IDC               (1<<7)
 
74
 
 
75
/* MVFR0 bits */
 
76
#define MVFR0_A_SIMD_BIT        (0)
 
77
#define MVFR0_A_SIMD_MASK       (0xf << MVFR0_A_SIMD_BIT)
 
78
 
 
79
/* Bit patterns for decoding the packaged operation descriptors */
 
80
#define VFPOPDESC_LENGTH_BIT    (9)
 
81
#define VFPOPDESC_LENGTH_MASK   (0x07 << VFPOPDESC_LENGTH_BIT)
 
82
#define VFPOPDESC_UNUSED_BIT    (24)
 
83
#define VFPOPDESC_UNUSED_MASK   (0xFF << VFPOPDESC_UNUSED_BIT)
 
84
#define VFPOPDESC_OPDESC_MASK   (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))