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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/asm-arm/vfp.h
3 *
4 * VFP register definitions.
5 * First, the standard VFP set.
6 */
7
8#define FPSID cr0
9#define FPSCR cr1
Catalin Marinas25ebee02007-09-25 15:22:24 +010010#define MVFR1 cr6
11#define MVFR0 cr7
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#define FPEXC cr8
Catalin Marinasc98929c2007-11-22 18:32:01 +010013#define FPINST cr9
14#define FPINST2 cr10
Linus Torvalds1da177e2005-04-16 15:20:36 -070015
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 */
Russell King228adef2007-07-18 09:37:10 +010033#define FPEXC_EX (1 << 31)
34#define FPEXC_EN (1 << 30)
Catalin Marinasc98929c2007-11-22 18:32:01 +010035#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)
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
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
Catalin Marinas25ebee02007-09-25 15:22:24 +010075/* MVFR0 bits */
76#define MVFR0_A_SIMD_BIT (0)
77#define MVFR0_A_SIMD_MASK (0xf << MVFR0_A_SIMD_BIT)
78
Linus Torvalds1da177e2005-04-16 15:20:36 -070079/* 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))