vppinfra: send minimal needed mask to the set_mempolicy syscall

[vpp.git] / src / vppinfra / vector_avx2.h

diff --git a/src/vppinfra/vector_avx2.h b/src/vppinfra/vector_avx2.h
index 584bd20..f5c09a5 100644 (file)
--- a/src/vppinfra/vector_avx2.h
+++ b/src/vppinfra/vector_avx2.h
@@ -105,17 +105,19 @@ _(u64x2, u64x4)
 #undef _
 /* *INDENT-ON* */
 
-always_inline u8x32
-u16x16_pack (u16x16 lo, u16x16 hi)
-{
-  return (u8x32) _mm256_packus_epi16 ((__m256i) lo, (__m256i) hi);
-}
+/* 256 bit packs. */
+#define _(f, t, fn)                                                           \
+  always_inline t t##_pack (f lo, f hi)                                       \
+  {                                                                           \
+    return (t) fn ((__m256i) lo, (__m256i) hi);                               \
+  }
+
+_ (i16x16, i8x32, _mm256_packs_epi16)
+_ (i16x16, u8x32, _mm256_packus_epi16)
+_ (i32x8, i16x16, _mm256_packs_epi32)
+_ (i32x8, u16x16, _mm256_packus_epi32)
 
-always_inline i8x32
-i16x16_pack (i16x16 lo, i16x16 hi)
-{
-  return (i8x32) _mm256_packs_epi16 ((__m256i) lo, (__m256i) hi);
-}
+#undef _
 
 static_always_inline u32
 u8x32_msb_mask (u8x32 v)
@@ -181,15 +183,12 @@ u16x16_byte_swap (u16x16 v)
   return (u16x16) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) swap);
 }
 
-static_always_inline u8x32
-u8x32_shuffle (u8x32 v, u8x32 m)
-{
-  return (u8x32) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) m);
-}
-
 #define u8x32_align_right(a, b, imm) \
   (u8x32) _mm256_alignr_epi8 ((__m256i) a, (__m256i) b, imm)
 
+#define u64x4_align_right(a, b, imm)                                          \
+  (u64x4) _mm256_alignr_epi64 ((__m256i) a, (__m256i) b, imm)
+
 static_always_inline u32
 u32x8_sum_elts (u32x8 sum8)
 {
@@ -204,6 +203,16 @@ u32x8_hadd (u32x8 v1, u32x8 v2)
   return (u32x8) _mm256_hadd_epi32 ((__m256i) v1, (__m256i) v2);
 }
 
+static_always_inline u32
+u32x8_hxor (u32x8 v)
+{
+  u32x4 v4;
+  v4 = u32x8_extract_lo (v) ^ u32x8_extract_hi (v);
+  v4 ^= (u32x4) u8x16_align_right (v4, v4, 8);
+  v4 ^= (u32x4) u8x16_align_right (v4, v4, 4);
+  return v4[0];
+}
+
 static_always_inline u16x16
 u16x16_mask_last (u16x16 v, u8 n_last)
 {
@@ -306,12 +315,6 @@ u32x8_scatter_one (u32x8 r, int index, void *p)
   *(u32 *) p = r[index];
 }
 
-static_always_inline u8x32
-u8x32_is_greater (u8x32 v1, u8x32 v2)
-{
-  return (u8x32) _mm256_cmpgt_epi8 ((__m256i) v1, (__m256i) v2);
-}
-
 static_always_inline u8x32
 u8x32_blend (u8x32 v1, u8x32 v2, u8x32 mask)
 {