LXR linux/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))
  85