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* Copyright (c) 2024 by FlashInfer team.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FLASHINFER_ATTENTION_HOPPER_PARAMS_CUH
#define FLASHINFER_ATTENTION_HOPPER_PARAMS_CUH
#include <cuda.h>
#include <vector>
namespace flashinfer {
template <typename DTypeQ_, typename DTypeKV_, typename DTypeO_, typename IdType_ = int32_t>
struct SinglePrefillParams {
using DTypeQ = DTypeQ_;
using DTypeKV = DTypeKV_;
using DTypeO = DTypeO_;
using IdType = IdType_;
// The QKV matrices.
DTypeQ* q_ptr;
DTypeKV* k_ptr;
DTypeKV* v_ptr;
DTypeO* o_ptr;
float* lse_ptr;
struct AdditionalParams {
float logits_soft_cap;
float sm_scale;
float* scale_q;
float* scale_k;
float* scale_v;
} additional_params;
int64_t q_stride_n;
int64_t k_stride_n;
int64_t v_stride_n;
int64_t o_stride_n;
int64_t q_stride_h;
int64_t k_stride_h;
int64_t v_stride_h;
int64_t o_stride_h;
int qo_len;
int kv_len;
int num_qo_heads;
int num_kv_heads;
int group_size;
int window_left;
bool causal;
};
template <typename DTypeQ_, typename DTypeKV_, typename DTypeO_, typename IdType_>
struct BatchPrefillRaggedParams {
using DTypeQ = DTypeQ_;
using DTypeKV = DTypeKV_;
using DTypeO = DTypeO_;
using IdType = IdType_;
// The QKV matrices.
DTypeQ* q_ptr;
DTypeKV* k_ptr;
DTypeKV* v_ptr;
DTypeO* o_ptr;
float* lse_ptr;
IdType* qo_tile_indices;
IdType* qo_indptr;
IdType* kv_indptr;
IdType* qo_lens;
IdType* kv_lens;
IdType* head_indices;
IdType* work_indptr;
IdType* batch_indices;
struct AdditionalParams {
float logits_soft_cap;
float sm_scale;
uint32_t* maybe_prefix_len_ptr;
uint16_t* maybe_token_pos_in_items_ptr;
uint32_t token_pos_in_items_len;
uint16_t* maybe_max_item_len_ptr;
} additional_params;
int64_t q_stride_n;
int64_t k_stride_n;
int64_t v_stride_n;
int64_t o_stride_n;
int64_t q_stride_h;
int64_t k_stride_h;
int64_t v_stride_h;
int64_t o_stride_h;
int64_t nnz_qo;
int64_t nnz_kv;
int num_qo_heads;
int num_kv_heads;
int group_size;
int window_left;
bool causal;
};
template <typename DTypeQ_, typename DTypeKV_, typename DTypeO_, typename IdType_>
struct BatchPrefillPagedParams {
using DTypeQ = DTypeQ_;
using DTypeKV = DTypeKV_;
using DTypeO = DTypeO_;
using IdType = IdType_;
// The QKV matrices.
DTypeQ* q_ptr;
DTypeKV* k_ptr;
DTypeKV* v_ptr;
DTypeO* o_ptr;
float* lse_ptr;
IdType* qo_tile_indices;
IdType* qo_indptr;
IdType* kv_indptr;
IdType* kv_indices;
IdType* qo_lens;
IdType* kv_lens;
IdType* head_indices;
IdType* work_indptr;
IdType* batch_indices;
struct AdditionalParams {
float logits_soft_cap;
float sm_scale;
uint32_t* maybe_prefix_len_ptr;
uint16_t* maybe_token_pos_in_items_ptr;
uint32_t token_pos_in_items_len;
uint16_t* maybe_max_item_len_ptr;
} additional_params;
int64_t q_stride_n;
int64_t k_stride_n;
int64_t v_stride_n;
int64_t o_stride_n;
int64_t q_stride_h;
int64_t k_stride_h;
int64_t v_stride_h;
int64_t o_stride_h;
int64_t nnz_qo;
int num_qo_heads;
int num_kv_heads;
int group_size;
int page_size;
int window_left;
bool causal;
};
} // namespace flashinfer
#endif // FLASHINFER_ATTENTION_HOPPER_PARAMS_CUH
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