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authorDamjan Marion <damarion@cisco.com>2022-09-08 19:00:06 +0200
committerDamjan Marion <dmarion@me.com>2022-09-09 17:09:38 +0200
commit10672be9e21aa8392aca0e5704fc3a47ea032ba5 (patch)
tree844a555037a72cd483bc96d89831ca2420a8f8fe /src/vppinfra
parentde4eb7fa212a33a0e08062f75aaf5fe5ad2a9cc0 (diff)
vppinfra: add clib_array_mask_set_u32()
Type: improvement Change-Id: Idf1fb054d5ff495d772d01a79cbc6cd1b409d377 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra')
-rw-r--r--src/vppinfra/vector/array_mask.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/vppinfra/vector/array_mask.h b/src/vppinfra/vector/array_mask.h
index fa427a6f1a9..39bcedcd191 100644
--- a/src/vppinfra/vector/array_mask.h
+++ b/src/vppinfra/vector/array_mask.h
@@ -93,4 +93,37 @@ clib_array_mask_u32 (u32 *src, u32 mask, u32 n_elts)
#endif
}
+static_always_inline void
+clib_array_mask_set_u32_x64 (u32 *a, u32 v, uword bmp, int n_elts)
+{
+#if defined(CLIB_HAVE_VEC512_MASK_LOAD_STORE)
+ u32x16 r = u32x16_splat (v);
+ for (; n_elts > 0; n_elts -= 16, a += 16, bmp >>= 16)
+ u32x16_mask_store (r, a, bmp);
+#elif defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
+ u32x8 r = u32x8_splat (v);
+ for (; n_elts > 0; n_elts -= 8, a += 8, bmp >>= 8)
+ u32x8_mask_store (r, a, bmp);
+#else
+ while (bmp)
+ {
+ a[get_lowest_set_bit_index (bmp)] = v;
+ bmp = clear_lowest_set_bit (bmp);
+ }
+#endif
+}
+
+static_always_inline void
+clib_array_mask_set_u32 (u32 *a, u32 v, uword *bmp, u32 n_elts)
+{
+ while (n_elts >= uword_bits)
+ {
+ clib_array_mask_set_u32_x64 (a, v, bmp++[0], uword_bits);
+ a += uword_bits;
+ n_elts -= uword_bits;
+ }
+
+ clib_array_mask_set_u32_x64 (a, v, bmp[0] & pow2_mask (n_elts), n_elts);
+}
+
#endif