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_CPUID_ARCH_MASK	(0x7F  << FPSID_ARCH_BIT)
26#define FPSID_PART_BIT		(8)
27#define FPSID_PART_MASK		(0xFF << FPSID_PART_BIT)
28#define FPSID_VARIANT_BIT	(4)
29#define FPSID_VARIANT_MASK	(0xF  << FPSID_VARIANT_BIT)
30#define FPSID_REV_BIT		(0)
31#define FPSID_REV_MASK		(0xF  << FPSID_REV_BIT)
32
33/* FPEXC bits */
34#define FPEXC_EX		(1 << 31)
35#define FPEXC_EN		(1 << 30)
36#define FPEXC_DEX		(1 << 29)
37#define FPEXC_FP2V		(1 << 28)
38#define FPEXC_VV		(1 << 27)
39#define FPEXC_TFV		(1 << 26)
40#define FPEXC_LENGTH_BIT	(8)
41#define FPEXC_LENGTH_MASK	(7 << FPEXC_LENGTH_BIT)
42#define FPEXC_IDF		(1 << 7)
43#define FPEXC_IXF		(1 << 4)
44#define FPEXC_UFF		(1 << 3)
45#define FPEXC_OFF		(1 << 2)
46#define FPEXC_DZF		(1 << 1)
47#define FPEXC_IOF		(1 << 0)
48#define FPEXC_TRAP_MASK		(FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF)
49
50/* FPSCR bits */
51#define FPSCR_DEFAULT_NAN	(1<<25)
52#define FPSCR_FLUSHTOZERO	(1<<24)
53#define FPSCR_ROUND_NEAREST	(0<<22)
54#define FPSCR_ROUND_PLUSINF	(1<<22)
55#define FPSCR_ROUND_MINUSINF	(2<<22)
56#define FPSCR_ROUND_TOZERO	(3<<22)
57#define FPSCR_RMODE_BIT		(22)
58#define FPSCR_RMODE_MASK	(3 << FPSCR_RMODE_BIT)
59#define FPSCR_STRIDE_BIT	(20)
60#define FPSCR_STRIDE_MASK	(3 << FPSCR_STRIDE_BIT)
61#define FPSCR_LENGTH_BIT	(16)
62#define FPSCR_LENGTH_MASK	(7 << FPSCR_LENGTH_BIT)
63#define FPSCR_IOE		(1<<8)
64#define FPSCR_DZE		(1<<9)
65#define FPSCR_OFE		(1<<10)
66#define FPSCR_UFE		(1<<11)
67#define FPSCR_IXE		(1<<12)
68#define FPSCR_IDE		(1<<15)
69#define FPSCR_IOC		(1<<0)
70#define FPSCR_DZC		(1<<1)
71#define FPSCR_OFC		(1<<2)
72#define FPSCR_UFC		(1<<3)
73#define FPSCR_IXC		(1<<4)
74#define FPSCR_IDC		(1<<7)
75
76/* MVFR0 bits */
77#define MVFR0_A_SIMD_BIT	(0)
78#define MVFR0_A_SIMD_MASK	(0xf << MVFR0_A_SIMD_BIT)
79#define MVFR0_SP_BIT		(4)
80#define MVFR0_SP_MASK		(0xf << MVFR0_SP_BIT)
81#define MVFR0_DP_BIT		(8)
82#define MVFR0_DP_MASK		(0xf << MVFR0_DP_BIT)
83
84/* Bit patterns for decoding the packaged operation descriptors */
85#define VFPOPDESC_LENGTH_BIT	(9)
86#define VFPOPDESC_LENGTH_MASK	(0x07 << VFPOPDESC_LENGTH_BIT)
87#define VFPOPDESC_UNUSED_BIT	(24)
88#define VFPOPDESC_UNUSED_MASK	(0xFF << VFPOPDESC_UNUSED_BIT)
89#define VFPOPDESC_OPDESC_MASK	(~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))
90