1 files changed, 348 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/flash_attn_cm2.comp b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/flash_attn_cm2.comp
new file mode 100644
index 0000000..39f0c4d
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/flash_attn_cm2.comp
@@ -0,0 +1,348 @@
+#version 450
+
+#extension GL_EXT_control_flow_attributes : enable
+#extension GL_EXT_shader_16bit_storage : require
+
+#extension GL_EXT_shader_explicit_arithmetic_types_float16 : require
+#extension GL_EXT_shader_explicit_arithmetic_types_int8 : require
+#extension GL_EXT_shader_explicit_arithmetic_types_int32 : require
+#extension GL_EXT_shader_explicit_arithmetic_types_int16 : require
+
+#extension GL_KHR_memory_scope_semantics : enable
+#extension GL_KHR_cooperative_matrix : enable
+#extension GL_NV_cooperative_matrix2 : enable
+#extension GL_EXT_buffer_reference : enable
+#extension GL_KHR_shader_subgroup_ballot : enable
+#extension GL_KHR_shader_subgroup_vote : enable
+#extension GL_EXT_null_initializer : enable
+
+#include "types.glsl"
+#include "dequant_funcs_cm2.glsl"
+#include "flash_attn_base.glsl"
+
+layout (binding = 0) readonly buffer Q {uint8_t data_q[];};
+layout (binding = 1) readonly buffer K {uint8_t data_k[];};
+layout (binding = 2) readonly buffer V {uint8_t data_v[];};
+layout (binding = 3) readonly buffer M {uint8_t data_m[];};
+
+ACC_TYPE maxReduce(const in ACC_TYPE x, const in ACC_TYPE y) {
+    return max(x, y);
+}
+
+float16_t maxReduceFp16(const in float16_t x, const in float16_t y) {
+    return max(x, y);
+}
+
+ACC_TYPE smearReduce(const in ACC_TYPE x, const in ACC_TYPE y) {
+    return x;
+}
+
+// Replace matrix elements >= numRows or numCols with 'replace'
+ACC_TYPE replacePadding(const in uint32_t row, const in uint32_t col, const in ACC_TYPE elem, const in ACC_TYPE replace, const in uint32_t numRows, const in uint32_t numCols) {
+    if (row >= numRows || col >= numCols) {
+        return replace;
+    }
+    return elem;
+}
+
+ACC_TYPE Exp(const in uint32_t row, const in uint32_t col, const in ACC_TYPE elem)
+{
+    return exp(elem);
+}
+
+ACC_TYPE Max(const in uint32_t row, const in uint32_t col, const in ACC_TYPE elem0, const in ACC_TYPE elem1)
+{
+    return max(elem0, elem1);
+}
+
+#if BLOCK_SIZE > 1
+#define DECODEFUNC , DEQUANTFUNC
+#else
+#define DECODEFUNC
+#endif
+
+// Store the output when doing grouped query attention.
+// Rows index by Q's dimension 2, and the first N rows are valid.
+D_TYPE perElemOpGqaStore(const in uint32_t r, const in uint32_t c, const in D_TYPE elem, const in uint32_t o_offset, const in uint32_t iq2, const in uint32_t N)
+{
+    if (r < N && c < HSV) {
+        uint32_t offset = (iq2 + r) * HSV + c;
+        data_o[o_offset + offset] = D_TYPE(elem);
+    }
+    return elem;
+}
+
+void main() {
+#ifdef NEEDS_INIT_IQ_SHMEM
+    init_iq_shmem(gl_WorkGroupSize);
+#endif
+
+    init_indices();
+
+    tensorLayoutNV<2, gl_CooperativeMatrixClampModeConstantNV> tensorLayoutQ = createTensorLayoutNV(2, gl_CooperativeMatrixClampModeConstantNV);
+    tensorLayoutNV<2, Clamp> tensorLayoutK = createTensorLayoutNV(2, Clamp);
+    tensorLayoutNV<2, Clamp> tensorLayoutV = createTensorLayoutNV(2, Clamp);
+
+    tensorViewNV<2, false, 1, 0> tensorViewTranspose = createTensorViewNV(2, false, 1, 0);
+
+#if BLOCK_SIZE > 1
+    tensorLayoutK = setTensorLayoutBlockSizeNV(tensorLayoutK, 1, BLOCK_SIZE);
+    tensorLayoutV = setTensorLayoutBlockSizeNV(tensorLayoutV, 1, BLOCK_SIZE);
+#endif
+
+    tensorLayoutQ = setTensorLayoutDimensionNV(tensorLayoutQ, N, HSK);
+    tensorLayoutK = setTensorLayoutDimensionNV(tensorLayoutK, KV, HSK);
+    tensorLayoutV = setTensorLayoutDimensionNV(tensorLayoutV, KV, HSV);
+
+    // hint to the compiler that strides are aligned for the aligned variant of the shader
+    if (Clamp != gl_CooperativeMatrixClampModeConstantNV)
+    {
+        q_stride &= ~7;
+#if BLOCK_SIZE == 1
+        k_stride &= ~7;
+        v_stride &= ~7;
+#endif
+        m_stride &= ~7;
+    }
+    tensorLayoutQ = setTensorLayoutStrideNV(tensorLayoutQ, q_stride, 1);
+    tensorLayoutK = setTensorLayoutStrideNV(tensorLayoutK, k_stride, 1);
+    tensorLayoutV = setTensorLayoutStrideNV(tensorLayoutV, v_stride, 1);
+
+    coopmat<Q_TYPE, gl_ScopeWorkgroup, Br, HSK_pad, gl_MatrixUseAccumulator> Q;
+    coopmat<float16_t, gl_ScopeWorkgroup, Br, HSK_pad, gl_MatrixUseA> Qf16;
+
+    uint32_t q_offset = gqa_iq1*p.nb01*4/*sizeof(float)*/ + iq2*p.nb02+iq3*p.nb03;
+    coopMatLoadTensorNV(Q, data_q, q_offset, sliceTensorLayoutNV(tensorLayoutQ, i * Br, Br, 0, HSK_pad));
+
+    Qf16 = coopmat<float16_t, gl_ScopeWorkgroup, Br, HSK_pad, gl_MatrixUseA>(Q);
+    Qf16 *= float16_t(p.scale);
+
+    coopmat<float16_t, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> O = coopmat<float16_t, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator>(0);
+
+    coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> L, M;
+
+    // Use -FLT_MAX/2 rather than -inf to reduce the possibility of NaNs, e.g. when computing Mold-M.
+    const float NEG_FLT_MAX_OVER_2 = uintBitsToFloat(0xFEFFFFFF);
+
+    L = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(0);
+#if defined(ACC_TYPE_MAX)
+    M = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(-ACC_TYPE_MAX / ACC_TYPE(2));
+#else
+    M = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(NEG_FLT_MAX_OVER_2);
+#endif
+
+    coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> slopeMat = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(1.0);
+
+    // ALiBi
+    if (p.max_bias > 0.0f) {
+        coopMatPerElementNV(slopeMat, slopeMat, perElemOpComputeSlope, iq2);
+    }
+
+    const uint32_t mo_stride = CEIL_DIV(KV, 16 * Bc);
+    // mo_offset will point to the tile starting at row i*Br and col 0
+    uint32_t mo_offset = mo_stride * i;
+
+    uint32_t m_offset = gqa_iq1*KV * 2 /*sizeof(float16_t)*/;
+    if (p.nem2 != 1 || p.nem3 != 1) {
+        m_offset += ((iq3 % p.nem3) * p.nem2 + (iq2 % p.nem2)) * p.nem1 * KV * 2 /*sizeof(float16_t)*/;
+        mo_offset += ((iq3 % p.nem3) * p.nem2 + (iq2 % p.nem2)) * CEIL_DIV(p.nem1, Br) * mo_stride;
+    }
+
+    uint32_t mask_opt = 0;
+    uint32_t mask_opt_idx = ~0;
+
+    [[dont_unroll]]
+    for (uint32_t j = start_j; j < end_j; ++j) {
+
+        coopmat<float16_t, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> mv = coopmat<float16_t, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(0);
+        if (MASK_ENABLE) {
+
+            if (USE_MASK_OPT && mask_opt_idx != j / 16) {
+                mask_opt_idx = j / 16;
+                mask_opt = data_mask_opt[mo_offset + mask_opt_idx];
+            }
+            uint32_t mask_opt_bits = (mask_opt >> ((j % 16) * 2)) & 0x3;
+            if (mask_opt_bits == MASK_OPT_ALL_NEG_INF) {
+                // skip this block
+                continue;
+            }
+            // Only load if the block is not all zeros
+            if (mask_opt_bits != MASK_OPT_ALL_ZERO) {
+                bool nem1_bounds_check = !(p.gqa_ratio > 1) && (p.nem1 % Br) != 0;
+
+                if (nem1_bounds_check) {
+                    tensorLayoutNV<2, gl_CooperativeMatrixClampModeConstantNV> tensorLayoutM = createTensorLayoutNV(2, gl_CooperativeMatrixClampModeConstantNV);
+                    tensorLayoutM = setTensorLayoutDimensionNV(tensorLayoutM, p.nem1, KV);
+                    tensorLayoutM = setTensorLayoutStrideNV(tensorLayoutM, m_stride, 1);
+                    tensorLayoutM = setTensorLayoutClampValueNV(tensorLayoutM, 0xfc00); // -inf in float16_t
+
+                    coopMatLoadTensorNV(mv, data_m, m_offset, sliceTensorLayoutNV(tensorLayoutM, i * Br, Br, j * Bc, Bc));
+                } else {
+                    tensorLayoutNV<2, Clamp> tensorLayoutM = createTensorLayoutNV(2, Clamp);
+                    // Don't clamp against nem1 when GQA is enabled
+                    uint32_t m_height = p.gqa_ratio > 1 ? ~0 : p.nem1;
+                    tensorLayoutM = setTensorLayoutDimensionNV(tensorLayoutM, m_height, KV);
+                    tensorLayoutM = setTensorLayoutStrideNV(tensorLayoutM, m_stride, 1);
+
+                    coopMatLoadTensorNV(mv, data_m, m_offset, sliceTensorLayoutNV(tensorLayoutM, i * Br, Br, j * Bc, Bc));
+                }
+            }
+        }
+
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> S = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(0);
+
+        coopmat<float16_t, gl_ScopeWorkgroup, HSK_pad, Bc, gl_MatrixUseB> K_T;
+
+        uint32_t k_offset = ik2*p.nb12 + ik3*p.nb13;
+        coopMatLoadTensorNV(K_T, data_k, k_offset, sliceTensorLayoutNV(tensorLayoutK, j * Bc, Bc, 0, HSK_pad), tensorViewTranspose DECODEFUNC);
+        S = coopMatMulAdd(Qf16, K_T, S);
+
+        if (LOGIT_SOFTCAP) {
+            [[unroll]]
+            for (int k = 0; k < S.length(); ++k) {
+                S[k] = ACC_TYPE(p.logit_softcap)*tanh(S[k]);
+            }
+        }
+
+        if (MASK_ENABLE) {
+            S += slopeMat*coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(mv);
+        }
+
+        // Clear padding elements to -inf, so they don't contribute to rowmax
+        if (Clamp != 0 &&
+            ((j + 1) * Bc > KV ||
+             (i + 1) * Br > N)) {
+
+            uint R = ((i + 1) * Br >  N) ?  (N % Br) : Br;
+            uint C = ((j + 1) * Bc > KV) ? (KV % Bc) : Bc;
+
+            coopMatPerElementNV(S, S, replacePadding, ACC_TYPE(NEG_FLT_MAX_OVER_2), R, C);
+        }
+
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> rowmax, P, rowsum, eM;
+
+        coopMatReduceNV(rowmax, S, gl_CooperativeMatrixReduceRowNV, maxReduce);
+
+        rowmax += coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(FATTN_KQ_MAX_OFFSET);
+
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator> Mold = M;
+
+        // M = max(rowmax, Mold)
+        // P = e^(S - M)
+        // eM = e^(Mold - M)
+        coopMatPerElementNV(M, rowmax, Max, Mold);
+        coopMatPerElementNV(P, S - M, Exp);
+        coopMatPerElementNV(eM, Mold - M, Exp);
+
+        // Clear padding elements to 0, so they don't contribute to rowsum
+        if (Clamp != 0 &&
+            ((j + 1) * Bc > KV ||
+             (i + 1) * Br > N)) {
+
+            uint R = ((i + 1) * Br >  N) ?  (N % Br) : Br;
+            uint C = ((j + 1) * Bc > KV) ? (KV % Bc) : Bc;
+
+            coopMatPerElementNV(P, P, replacePadding, ACC_TYPE(0.0), R, C);
+        }
+
+        coopmat<float16_t, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseA> P_A = coopmat<float16_t, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseA>(P);
+
+        // compute rowsum by multiplying by matrix of all ones.
+        coopmat<float16_t, gl_ScopeWorkgroup, Bc, Bc, gl_MatrixUseB> One = coopmat<float16_t, gl_ScopeWorkgroup, Bc, Bc, gl_MatrixUseB>(1.0);
+
+        rowsum = coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, Bc, gl_MatrixUseAccumulator>(0.0);
+        rowsum = coopMatMulAdd(P_A, One, rowsum);
+
+        coopmat<float16_t, gl_ScopeWorkgroup, Bc, HSV_pad, gl_MatrixUseB> V;
+        uint32_t v_offset = iv2*p.nb22 + iv3*p.nb23;
+        coopMatLoadTensorNV(V,  data_v, v_offset, sliceTensorLayoutNV(tensorLayoutV, j * Bc, Bc, 0, HSV_pad) DECODEFUNC);
+
+        L = eM*L + rowsum;
+
+        // This is the "diagonal" matrix in the paper, but since we do componentwise
+        // multiply rather than matrix multiply it has the diagonal element smeared
+        // across the row
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> eMdiag;
+
+        // resize eM by using smear/reduce
+        coopMatReduceNV(eMdiag, eM, gl_CooperativeMatrixReduceRowNV, smearReduce);
+
+        O *= coopmat<float16_t, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator>(eMdiag);
+        O = coopMatMulAdd(P_A, V, O);
+    }
+
+    // If there is split_k, then the split_k resolve shader does the final
+    // division by L. Store the intermediate O value and per-row m and L values.
+    if (p.k_num > 1) {
+        coopmat<D_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> O_D = coopmat<D_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator>(O);
+
+        // note: O and Q have swapped coord 1,2.
+        uint32_t o_offset = HSV * p.ne1 * (split_k_index + p.k_num * (gqa_iq1 + p.ne2 * iq3));
+        coopMatPerElementNV(O_D, O_D, perElemOpGqaStore, o_offset, iq2, N);
+
+        o_offset = HSV * p.ne1 * p.k_num * p.ne2 * p.ne3 + p.ne1 * 2 * (split_k_index + p.k_num * (gqa_iq1 + p.ne2 * iq3));
+        coopMatPerElementNV(L, L, perElemOpStoreCol0, o_offset, iq2, N);
+        coopMatPerElementNV(M, M, perElemOpStoreCol0, o_offset + p.ne1, iq2, N);
+        return;
+    }
+
+    coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> Ldiag;
+
+    // resize L by using smear/reduce
+    coopMatReduceNV(Ldiag, L, gl_CooperativeMatrixReduceRowNV, smearReduce);
+
+    if ((p.mask_n_head_log2 & SINK_ENABLE_BIT) != 0) {
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> S;
+        coopMatPerElementNV(S, S, perElemOpGetSink, iq2);
+
+        coopmat<ACC_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> Mr;
+
+        // resize M by using smear/reduce
+        coopMatReduceNV(Mr, M, gl_CooperativeMatrixReduceRowNV, smearReduce);
+
+        // O, Ldiag, Mr all have the same type so all element locations match
+        [[unroll]] for (uint32_t i = 0; i < Ldiag.length(); ++i) {
+            ACC_TYPE sink = S[i];
+
+            ACC_TYPE ms = ACC_TYPE(1.0f);
+            ACC_TYPE vs = ACC_TYPE(1.0f);
+
+            if (sink > Mr[i]) {
+                ms = exp(Mr[i] - sink);
+
+                O[i] *= float16_t(ms);
+            } else {
+                vs = exp(sink - Mr[i]);
+            }
+
+            Ldiag[i] = Ldiag[i]*ms + vs;
+        }
+    }
+
+    [[unroll]]
+    for (int k = 0; k < Ldiag.length(); ++k) {
+        Ldiag[k] = (Ldiag[k] == 0.0) ? ACC_TYPE(0.0) : (ACC_TYPE(1.0) / Ldiag[k]);
+    }
+
+    coopmat<D_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator> O_D = coopmat<D_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator>(O);
+
+    O_D = coopmat<D_TYPE, gl_ScopeWorkgroup, Br, HSV_pad, gl_MatrixUseAccumulator>(Ldiag)*O_D;
+
+#if defined(ACC_TYPE_MAX)
+    [[unroll]] for (uint i = 0; i < O_D.length(); ++i) { O_D[i] = clamp(O_D[i], D_TYPE(-ACC_TYPE_MAX), D_TYPE(ACC_TYPE_MAX)); }
+#endif
+
+    uint32_t o_offset = gqa_iq1*p.ne1*HSV + iq3*p.ne2*p.ne1*HSV;
+
+    if (p.gqa_ratio > 1) {
+        coopMatPerElementNV(O_D, O_D, perElemOpGqaStore, o_offset, iq2, N);
+    } else {
+        tensorLayoutNV<3, gl_CooperativeMatrixClampModeConstantNV> tensorLayoutD = createTensorLayoutNV(3, gl_CooperativeMatrixClampModeConstantNV);
+        tensorLayoutD = setTensorLayoutDimensionNV(tensorLayoutD, p.ne2, p.ne1, HSV);
+
+        // permute dimensions
+        tensorViewNV<3, false, 1, 0, 2> tensorViewPermute = createTensorViewNV(3, false, 1, 0, 2);
+
+        coopMatStoreTensorNV(O_D, data_o, o_offset, sliceTensorLayoutNV(tensorLayoutD, i * Br, Br, iq2, N, 0, HSV_pad), tensorViewPermute);
+    }
+}