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1 files changed, 293 insertions, 0 deletions

diff --git a/llama.cpp/ggml/src/ggml-sycl/wkv.cpp b/llama.cpp/ggml/src/ggml-sycl/wkv.cpp
new file mode 100644
index 0000000..b56e0c2
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-sycl/wkv.cpp
@@ -0,0 +1,293 @@
+#include <sycl/sycl.hpp>
+#include "wkv.hpp"
+
+constexpr int WKV_BLOCK_SIZE = 64;
+
+// Helper function for the main kernel
+template <int block_size>
+static void rwkv_wkv6_f32_kernel(
+    const int B, const int T, const int C, const int H,
+    const float* k, const float* v, const float* r,
+    const float* tf, const float* td, const float* s,
+    float* dst, const sycl::nd_item<3>& item_ct1, float* shared_mem) {
+
+    const int tid = item_ct1.get_local_id(2);
+    const int bid = item_ct1.get_group(2);
+
+    const int head_size = block_size;
+    const int batch_i = bid / H;
+    const int head_i = bid % H;
+    const int state_size = C * head_size;
+    const int n_seq_tokens = T / B;
+
+    // Set up shared memory pointers
+    float* _k = shared_mem;
+    float* _r = _k + head_size;
+    float* _tf = _r + head_size;
+    float* _td = _tf + head_size;
+
+    // Local state array
+    float state[block_size];
+
+    // Load initial state
+    #pragma unroll
+    for (int i = 0; i < head_size; i++) {
+        state[i] = s[batch_i * state_size + head_i * head_size * head_size + i * head_size + tid];
+    }
+
+    // Sync threads before shared memory operations
+    item_ct1.barrier(sycl::access::fence_space::local_space);
+
+    // Load time-mixing parameters
+    _tf[tid] = tf[head_i * head_size + tid];
+    item_ct1.barrier(sycl::access::fence_space::local_space);
+
+    // Main sequence processing loop
+    for (int t = batch_i * n_seq_tokens * C + head_i * head_size + tid;
+         t < (batch_i + 1) * n_seq_tokens * C + head_i * head_size + tid;
+         t += C) {
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        // Load current timestep data to shared memory
+        _k[tid] = k[t];
+        _r[tid] = r[t];
+        _td[tid] = td[t];
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        const float _v = v[t];
+        float y = 0;
+
+        // Process in chunks of 4 for better vectorization
+        sycl::float4 k4, r4, tf4, td4, s4;
+        #pragma unroll
+        for (int j = 0; j < head_size; j += 4) {
+            // Load data in vec4 chunks
+            k4 = sycl::float4(_k[j], _k[j+1], _k[j+2], _k[j+3]);
+            r4 = sycl::float4(_r[j], _r[j+1], _r[j+2], _r[j+3]);
+            tf4 = sycl::float4(_tf[j], _tf[j+1], _tf[j+2], _tf[j+3]);
+            td4 = sycl::float4(_td[j], _td[j+1], _td[j+2], _td[j+3]);
+            s4 = sycl::float4(state[j], state[j+1], state[j+2], state[j+3]);
+
+            // Compute key-value product
+            sycl::float4 kv4 = k4 * _v;
+
+            // Accumulate weighted sum
+            y += sycl::dot(r4, tf4 * kv4 + s4);
+
+            // Update state
+            s4 = s4 * td4 + kv4;
+
+            // Store updated state
+            state[j] = s4.x();
+            state[j+1] = s4.y();
+            state[j+2] = s4.z();
+            state[j+3] = s4.w();
+        }
+
+        dst[t] = y;
+    }
+
+    // Save final state
+    #pragma unroll
+    for (int i = 0; i < head_size; i++) {
+        dst[T * C + batch_i * state_size + head_i * head_size * head_size + i * head_size + tid] = state[i];
+    }
+}
+
+template <int block_size>
+static void rwkv_wkv7_f32_kernel(
+    const int B, const int T, const int C, const int H,
+    const float* r, const float* w, const float* k, const float* v,
+    const float* a, const float* b, const float* s,
+    float* dst, const sycl::nd_item<3>& item_ct1, float* shared_mem) {
+
+    const int tid = item_ct1.get_local_id(2);
+    const int bid = item_ct1.get_group(2);
+
+    const int head_size = block_size;
+    const int batch_i = bid / H;
+    const int head_i = bid % H;
+    const int state_size = C * head_size;
+    const int n_seq_tokens = T / B;
+
+    float* _r = shared_mem;
+    float* _w = _r + head_size;
+    float* _k = _w + head_size;
+    float* _a = _k + head_size;
+    float* _b = _a + head_size;
+
+    float state[block_size];
+
+    #pragma unroll
+    for (int i = 0; i < head_size; i++) {
+        state[i] = s[batch_i * state_size + head_i * head_size * head_size + tid * head_size + i];
+    }
+
+    for (int t = batch_i * n_seq_tokens * C + head_i * head_size + tid;
+         t < (batch_i + 1) * n_seq_tokens * C + head_i * head_size + tid;
+         t += C) {
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        _r[tid] = r[t];
+        _w[tid] = w[t];
+        _k[tid] = k[t];
+        _a[tid] = a[t];
+        _b[tid] = b[t];
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        const float _v = v[t];
+        float y = 0, sa = 0;
+        sycl::float4 a4, s4;
+
+        #pragma unroll
+        for (int j = 0; j < head_size; j += 4) {
+            a4 = sycl::float4(_a[j], _a[j+1], _a[j+2], _a[j+3]);
+            s4 = sycl::float4(state[j], state[j+1], state[j+2], state[j+3]);
+            sa += sycl::dot(a4, s4);
+        }
+
+        sycl::float4 r4, w4, k4, b4;
+        #pragma unroll
+        for (int j = 0; j < head_size; j += 4) {
+            r4 = sycl::float4(_r[j], _r[j+1], _r[j+2], _r[j+3]);
+            w4 = sycl::float4(_w[j], _w[j+1], _w[j+2], _w[j+3]);
+            k4 = sycl::float4(_k[j], _k[j+1], _k[j+2], _k[j+3]);
+            b4 = sycl::float4(_b[j], _b[j+1], _b[j+2], _b[j+3]);
+            s4 = sycl::float4(state[j], state[j+1], state[j+2], state[j+3]);
+
+            sycl::float4 kv4 = k4 * _v;
+
+            s4 = s4 * w4 + kv4 + sa * b4;
+            y += sycl::dot(r4, s4);
+
+            state[j] = s4.x();
+            state[j+1] = s4.y();
+            state[j+2] = s4.z();
+            state[j+3] = s4.w();
+        }
+
+        dst[t] = y;
+    }
+
+    #pragma unroll
+    for (int i = 0; i < head_size; i++) {
+        dst[T * C + batch_i * state_size + head_i * head_size * head_size + tid * head_size + i] = state[i];
+    }
+}
+
+void ggml_sycl_op_rwkv_wkv6(ggml_backend_sycl_context& ctx, ggml_tensor* dst) {
+    scope_op_debug_print scope_dbg_print(__func__, dst, /*num_src=*/6);
+    const float* k_d = (const float*)dst->src[0]->data;
+    const float* v_d = (const float*)dst->src[1]->data;
+    const float* r_d = (const float*)dst->src[2]->data;
+    const float* tf_d = (const float*)dst->src[3]->data;
+    const float* td_d = (const float*)dst->src[4]->data;
+    const float* s_d = (const float*)dst->src[5]->data;
+    float* dst_d = (float*)dst->data;
+
+    const int64_t B = dst->src[5]->ne[1];
+    const int64_t T = dst->src[0]->ne[2];
+    const int64_t C = dst->ne[0];
+    const int64_t H = dst->src[0]->ne[1];
+
+    GGML_ASSERT(dst->src[5]->type == GGML_TYPE_F32);
+    GGML_ASSERT(C % H == 0);
+    GGML_ASSERT(C / H == WKV_BLOCK_SIZE || C / H == WKV_BLOCK_SIZE * 2); // The current sycl kernel is designed for RWKV6, HEAD_SIZE == 64
+
+    dpct::queue_ptr stream = ctx.stream();
+
+    // Calculate execution configuration
+    const size_t shared_mem_size = C / H * 4 * sizeof(float); // For k, r, tf, td
+    sycl::range<3> block_dims(1, 1, C / H);
+    sycl::range<3> grid_dims(1, 1, B * H);
+
+    // Submit kernel
+    if (C / H == WKV_BLOCK_SIZE) {
+        stream->submit([&](sycl::handler& cgh) {
+            sycl::local_accessor<float, 1> shared_mem_acc(shared_mem_size, cgh);
+
+            cgh.parallel_for(
+                sycl::nd_range<3>(grid_dims * block_dims, block_dims),
+                [=](sycl::nd_item<3> item_ct1) {
+                    rwkv_wkv6_f32_kernel<WKV_BLOCK_SIZE>(
+                        B, T, C, H, k_d, v_d, r_d, tf_d, td_d, s_d, dst_d,
+                        item_ct1, (float*)shared_mem_acc.get_multi_ptr<sycl::access::decorated::no>().get()
+                    );
+                });
+        });
+    } else {
+        stream->submit([&](sycl::handler& cgh) {
+            sycl::local_accessor<float, 1> shared_mem_acc(shared_mem_size, cgh);
+
+            cgh.parallel_for(
+                sycl::nd_range<3>(grid_dims * block_dims, block_dims),
+                [=](sycl::nd_item<3> item_ct1) {
+                    rwkv_wkv6_f32_kernel<WKV_BLOCK_SIZE * 2>(
+                        B, T, C, H, k_d, v_d, r_d, tf_d, td_d, s_d, dst_d,
+                        item_ct1, (float*)shared_mem_acc.get_multi_ptr<sycl::access::decorated::no>().get()
+                    );
+                });
+        });
+    }
+}
+
+void ggml_sycl_op_rwkv_wkv7(ggml_backend_sycl_context& ctx, ggml_tensor* dst) {
+    scope_op_debug_print scope_dbg_print(__func__, dst, /*num_src=*/7);
+    const float* r_d = (const float*)dst->src[0]->data;
+    const float* w_d = (const float*)dst->src[1]->data;
+    const float* k_d = (const float*)dst->src[2]->data;
+    const float* v_d = (const float*)dst->src[3]->data;
+    const float* a_d = (const float*)dst->src[4]->data;
+    const float* b_d = (const float*)dst->src[5]->data;
+    const float* s_d = (const float*)dst->src[6]->data;
+    float* dst_d = (float*)dst->data;
+
+    const int64_t B = dst->src[6]->ne[1];
+    const int64_t T = dst->src[0]->ne[2];
+    const int64_t C = dst->ne[0];
+    const int64_t H = dst->src[0]->ne[1];
+
+    GGML_ASSERT(dst->src[6]->type == GGML_TYPE_F32);
+    GGML_ASSERT(C % H == 0);
+    GGML_ASSERT(C / H == WKV_BLOCK_SIZE || C / H == WKV_BLOCK_SIZE * 2);
+
+    dpct::queue_ptr stream = ctx.stream();
+
+    // Calculate execution configuration
+    const size_t shared_mem_size = C / H * 5 * sizeof(float); // For r, w, k, a, b
+    sycl::range<3> block_dims(1, 1, C / H);
+    sycl::range<3> grid_dims(1, 1, B * H);
+
+    // Submit kernel
+    if (C / H == WKV_BLOCK_SIZE) {
+        stream->submit([&](sycl::handler& cgh) {
+            sycl::local_accessor<float, 1> shared_mem_acc(shared_mem_size, cgh);
+
+            cgh.parallel_for(
+                sycl::nd_range<3>(grid_dims * block_dims, block_dims),
+                [=](sycl::nd_item<3> item_ct1) {
+                    rwkv_wkv7_f32_kernel<WKV_BLOCK_SIZE>(
+                        B, T, C, H, r_d, w_d, k_d, v_d, a_d, b_d, s_d, dst_d,
+                        item_ct1, (float*)shared_mem_acc.get_multi_ptr<sycl::access::decorated::no>().get()
+                    );
+                });
+        });
+    } else {
+        stream->submit([&](sycl::handler& cgh) {
+            sycl::local_accessor<float, 1> shared_mem_acc(shared_mem_size, cgh);
+
+            cgh.parallel_for(
+                sycl::nd_range<3>(grid_dims * block_dims, block_dims),
+                [=](sycl::nd_item<3> item_ct1) {
+                    rwkv_wkv7_f32_kernel<WKV_BLOCK_SIZE * 2>(
+                        B, T, C, H, r_d, w_d, k_d, v_d, a_d, b_d, s_d, dst_d,
+                        item_ct1, (float*)shared_mem_acc.get_multi_ptr<sycl::access::decorated::no>().get()
+                    );
+                });
+        });
+    }
+}