1 files changed, 106 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/arm/blk_sse_sum_sve.c b/third_party/aom/aom_dsp/arm/blk_sse_sum_sve.c
new file mode 100644
index 0000000000..18bdc5dbfe
--- /dev/null
+++ b/third_party/aom/aom_dsp/arm/blk_sse_sum_sve.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2023, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <arm_neon.h>
+#include <assert.h>
+
+#include "config/aom_dsp_rtcd.h"
+#include "config/aom_config.h"
+
+#include "aom_dsp/arm/dot_sve.h"
+#include "aom_dsp/arm/mem_neon.h"
+
+static INLINE void get_blk_sse_sum_4xh_sve(const int16_t *data, int stride,
+                                           int bh, int *x_sum,
+                                           int64_t *x2_sum) {
+  int32x4_t sum = vdupq_n_s32(0);
+  int64x2_t sse = vdupq_n_s64(0);
+
+  do {
+    int16x8_t d = vcombine_s16(vld1_s16(data), vld1_s16(data + stride));
+
+    sum = vpadalq_s16(sum, d);
+
+    sse = aom_sdotq_s16(sse, d, d);
+
+    data += 2 * stride;
+    bh -= 2;
+  } while (bh != 0);
+
+  *x_sum = vaddvq_s32(sum);
+  *x2_sum = vaddvq_s64(sse);
+}
+
+static INLINE void get_blk_sse_sum_8xh_sve(const int16_t *data, int stride,
+                                           int bh, int *x_sum,
+                                           int64_t *x2_sum) {
+  int32x4_t sum[2] = { vdupq_n_s32(0), vdupq_n_s32(0) };
+  int64x2_t sse[2] = { vdupq_n_s64(0), vdupq_n_s64(0) };
+
+  do {
+    int16x8_t d0 = vld1q_s16(data);
+    int16x8_t d1 = vld1q_s16(data + stride);
+
+    sum[0] = vpadalq_s16(sum[0], d0);
+    sum[1] = vpadalq_s16(sum[1], d1);
+
+    sse[0] = aom_sdotq_s16(sse[0], d0, d0);
+    sse[1] = aom_sdotq_s16(sse[1], d1, d1);
+
+    data += 2 * stride;
+    bh -= 2;
+  } while (bh != 0);
+
+  *x_sum = vaddvq_s32(vaddq_s32(sum[0], sum[1]));
+  *x2_sum = vaddvq_s64(vaddq_s64(sse[0], sse[1]));
+}
+
+static INLINE void get_blk_sse_sum_large_sve(const int16_t *data, int stride,
+                                             int bw, int bh, int *x_sum,
+                                             int64_t *x2_sum) {
+  int32x4_t sum[2] = { vdupq_n_s32(0), vdupq_n_s32(0) };
+  int64x2_t sse[2] = { vdupq_n_s64(0), vdupq_n_s64(0) };
+
+  do {
+    int j = bw;
+    const int16_t *data_ptr = data;
+    do {
+      int16x8_t d0 = vld1q_s16(data_ptr);
+      int16x8_t d1 = vld1q_s16(data_ptr + 8);
+
+      sum[0] = vpadalq_s16(sum[0], d0);
+      sum[1] = vpadalq_s16(sum[1], d1);
+
+      sse[0] = aom_sdotq_s16(sse[0], d0, d0);
+      sse[1] = aom_sdotq_s16(sse[1], d1, d1);
+
+      data_ptr += 16;
+      j -= 16;
+    } while (j != 0);
+
+    data += stride;
+  } while (--bh != 0);
+
+  *x_sum = vaddvq_s32(vaddq_s32(sum[0], sum[1]));
+  *x2_sum = vaddvq_s64(vaddq_s64(sse[0], sse[1]));
+}
+
+void aom_get_blk_sse_sum_sve(const int16_t *data, int stride, int bw, int bh,
+                             int *x_sum, int64_t *x2_sum) {
+  if (bw == 4) {
+    get_blk_sse_sum_4xh_sve(data, stride, bh, x_sum, x2_sum);
+  } else if (bw == 8) {
+    get_blk_sse_sum_8xh_sve(data, stride, bh, x_sum, x2_sum);
+  } else {
+    assert(bw % 16 == 0);
+    get_blk_sse_sum_large_sve(data, stride, bw, bh, x_sum, x2_sum);
+  }
+}