1 files changed, 78 insertions, 0 deletions
diff --git a/ggml/src/iqk/iqk_quantize.cpp b/ggml/src/iqk/iqk_quantize.cpp
index b9e6ff68..811a9fe9 100644
--- a/ggml/src/iqk/iqk_quantize.cpp
+++ b/ggml/src/iqk/iqk_quantize.cpp
@@ -3287,3 +3287,81 @@ void vec_dot_q4_0_r4_q8_0(int n, float * s, size_t bs, const void * vx, size_t b
     GGML_UNUSED(by);
 }
 
+
+//
+// ========================================= q8_0_r4
+//
+void quantize_row_q8_0_r4_ref(const float * x, block_q8_0_x4  * y, int64_t k) {
+    // we assume we are called with 4 rows
+    quantize_q8_0_r4(x, (void *)y, 4, k/4, nullptr);
+}
+
+void quantize_row_q8_0_r4(const float * x, void * y, int64_t k) {
+    // we assume we are called with 4 rows
+    quantize_q8_0_r4(x, y, 4, k/4, nullptr);
+}
+
+static void repack_q8_0(int nrows, int n_per_row, const block_q8_0 * x, block_q8_0_x4 * y) {
+    GGML_ASSERT(nrows%4 == 0);
+    GGML_ASSERT(n_per_row%QK8_0 == 0);
+    int nblock = n_per_row/QK8_0;
+    const block_q8_0 * x4[4];
+    for (int row = 0; row < nrows; row += 4) {
+        for (int k = 0; k < 4; ++k) x4[k] = x + nblock*k;
+        for (int ib = 0; ib < nblock; ++ib) {
+            for (int k = 0; k < 4; ++k) y[ib].d[k] = x4[k][ib].d;
+            for (int l = 0; l < 4; ++l) {
+                for (int k = 0; k < 4; ++k) for (int i = 0; i < 4; ++i) {
+                    y[ib].qs[32*l+4*k+i+ 0] = x4[k][ib].qs[i+4*l+ 0];
+                    y[ib].qs[32*l+4*k+i+16] = x4[k][ib].qs[i+4*l+16];
+                }
+            }
+        }
+        x += 4*nblock;
+        y += nblock;
+    }
+}
+
+size_t quantize_q8_0_r4(const float * src, void * dst, int64_t nrows, int64_t n_per_row, const float * imatrix) {
+    GGML_ASSERT(nrows%4 == 0);
+    auto row_size_0 = ggml_row_size(GGML_TYPE_Q8_0, n_per_row);
+    std::vector<char> qtmp(4*row_size_0);
+    char * qrow = (char *)dst;
+    for (int row = 0; row < nrows; row += 4) {
+        quantize_q8_0(src, qtmp.data(), 4, n_per_row, imatrix);
+        repack_q8_0(4, n_per_row, (const block_q8_0 *)qtmp.data(), (block_q8_0_x4 *)qrow);
+        src += 4*n_per_row;
+        qrow += 4*row_size_0;
+    }
+    return nrows*row_size_0;
+}
+
+void dequantize_row_q8_0_r4(const block_q8_0_x4 * x, float * y, int64_t k) {
+    // we assume we are called with 4 rows
+    int n_per_row = k/4;
+    int nb = n_per_row/QK8_0;
+    float * yk[4];
+    for (int k = 0; k < 4; ++k) yk[k] = y + k*n_per_row;
+    for (int ib = 0; ib < nb; ++ib) {
+        for (int k = 0; k < 4; ++k) {
+            float scale = GGML_FP16_TO_FP32(x[ib].d[k]);
+            for (int l = 0; l < 4; ++l) for (int i = 0; i < 4; ++i) {
+                yk[k][QK8_0*ib+4*l+i+ 0] = scale * x[ib].qs[QK8_0*l+4*k+i+ 0];
+                yk[k][QK8_0*ib+4*l+i+16] = scale * x[ib].qs[QK8_0*l+4*k+i+16];
+            }
+        }
+    }
+}
+
+void vec_dot_q8_0_r4_q8_0(int n, float * s, size_t bs, const void * vx, size_t bx, const void * vy, size_t by, int nrc) {
+#if GGML_USE_IQK_MULMAT
+    if (iqk_mul_mat(1, 1, n, GGML_TYPE_Q8_0_R4, vx, 0, GGML_TYPE_Q8_0, vy, 0, s, 0, 0, 1)) {
+        return;
+    }
+#endif
+    GGML_ASSERT(n%QK4_NL == 0);
+    GGML_ASSERT(nrc == 1);
+    GGML_UNUSED(bs);
+    GGML_UNUSED(bx);
+    GGML_UNUSED(by);
+}