rx-placement: Add API call for interface rx-placement

[vpp.git] / src / vppinfra / vector_neon.h

diff --git a/src/vppinfra/vector_neon.h b/src/vppinfra/vector_neon.h
index cea5275..451c531 100644 (file)
--- a/src/vppinfra/vector_neon.h
+++ b/src/vppinfra/vector_neon.h
@@ -17,22 +17,24 @@
 #define included_vector_neon_h
 #include <arm_neon.h>
 
-/* Splats. */
-
-#define u8x16_splat(i) vdupq_n_u8(i)
-#define u16x8_splat(i) vdupq_n_u16(i)
-#define i16x8_splat(i) vdupq_n_s16(i)
-#define u32x4_splat(i) vdupq_n_u32(i)
-#define i32x4_splat(i) vdupq_n_s32(i)
-
 /* Arithmetic */
-#define u16x8_add(a,b) vaddq_u16(a,b)
-#define i16x8_add(a,b) vaddq_s16(a,b)
 #define u16x8_sub_saturate(a,b) vsubq_u16(a,b)
 #define i16x8_sub_saturate(a,b) vsubq_s16(a,b)
 
-#define u16x8_is_equal(a,b) vceqq_u16(a,b)
-#define i16x8_is_equal(a,b) vceqq_i16(a,b)
+/* Converts all ones/zeros compare mask to bitmap. */
+always_inline u32
+u8x16_compare_byte_mask (u8x16 x)
+{
+  uint8x16_t mask_shift =
+    { -7, -6, -5, -4, -3, -2, -1, 0, -7, -6, -5, -4, -3, -2, -1, 0 };
+  uint8x16_t mask_and = vdupq_n_u8 (0x80);
+  x = vandq_u8 (x, mask_and);
+  x = vshlq_u8 (x, vreinterpretq_s8_u8 (mask_shift));
+  x = vpaddq_u8 (x, x);
+  x = vpaddq_u8 (x, x);
+  x = vpaddq_u8 (x, x);
+  return vgetq_lane_u8 (x, 0) | (vgetq_lane_u8 (x, 1) << 8);
+}
 
 always_inline u32
 u16x8_zero_byte_mask (u16x8 input)
@@ -60,6 +62,80 @@ u16x8_zero_byte_mask (u16x8 input)
   return (u32) (vgetq_lane_u64 (merge3, 1) << 8) + vgetq_lane_u64 (merge3, 0);
 }
 
+always_inline u32
+u8x16_zero_byte_mask (u8x16 input)
+{
+  return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+always_inline u32
+u32x4_zero_byte_mask (u32x4 input)
+{
+  return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+always_inline u32
+u64x2_zero_byte_mask (u64x2 input)
+{
+  return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+/* *INDENT-OFF* */
+#define foreach_neon_vec128i \
+  _(i,8,16,s8) _(i,16,8,s16) _(i,32,4,s32)  _(i,64,2,s64)
+#define foreach_neon_vec128u \
+  _(u,8,16,u8) _(u,16,8,u16) _(u,32,4,u32)  _(u,64,2,u64)
+#define foreach_neon_vec128f \
+  _(f,32,4,f32) _(f,64,2,f64)
+
+#define _(t, s, c, i) \
+static_always_inline t##s##x##c                                                \
+t##s##x##c##_splat (t##s x)                                            \
+{ return (t##s##x##c) vdupq_n_##i (x); }                               \
+\
+static_always_inline t##s##x##c                                                \
+t##s##x##c##_load_unaligned (void *p)                                  \
+{ return (t##s##x##c) vld1q_##i (p); }                                 \
+\
+static_always_inline void                                              \
+t##s##x##c##_store_unaligned (t##s##x##c v, void *p)                   \
+{ vst1q_##i (p, v); }                                                  \
+\
+static_always_inline int                                               \
+t##s##x##c##_is_all_zero (t##s##x##c x)                                        \
+{ return !(vaddvq_##i (x)); }                                          \
+\
+static_always_inline int                                               \
+t##s##x##c##_is_equal (t##s##x##c a, t##s##x##c b)                     \
+{ return t##s##x##c##_is_all_zero (a ^ b); }                           \
+\
+static_always_inline int                                               \
+t##s##x##c##_is_all_equal (t##s##x##c v, t##s x)                       \
+{ return t##s##x##c##_is_equal (v, t##s##x##c##_splat (x)); };         \
+
+foreach_neon_vec128i foreach_neon_vec128u
+
+#undef _
+/* *INDENT-ON* */
+
+static_always_inline u16x8
+u16x8_byte_swap (u16x8 v)
+{
+  const u8 swap_pattern[] = {
+    1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14,
+  };
+  u8x16 swap = vld1q_u8 (swap_pattern);
+  return (u16x8) vqtbl1q_u8 ((u8x16) v, swap);
+}
+
+static_always_inline u8x16
+u8x16_shuffle (u8x16 v, u8x16 m)
+{
+  return (u8x16) vqtbl1q_u8 (v, m);
+}
+
+#define CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE
+#define CLIB_VEC128_SPLAT_DEFINED
 #endif /* included_vector_neon_h */
 
 /*