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enginex-ascend-910-vllm/csrc/attention/lightning_indexer/op_kernel/lightning_indexer_common.h
Sun Ruoxi 7f8a1b1f7a init v0.23.0
Signed-off-by: Sun Ruoxi <sunruoxi@4paradigm.com>
2026-08-27 15:11:51 +08:00

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/**
 * Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */
/*!
* \file lightning_indexer_common.h
* \brief
*/
#ifndef LIGHTNING_INDEXER_COMMON_H
#define LIGHTNING_INDEXER_COMMON_H
using namespace AscendC;
namespace LICommon {
// 与tiling的layout保持一致
enum class LI_LAYOUT {
BSND = 0,
TND = 1,
PA_BSND = 2
};
template <typename Q_T, typename K_T, typename OUT_T, const bool PAGE_ATTENTION = false,
LI_LAYOUT LAYOUT_T = LI_LAYOUT::BSND, LI_LAYOUT K_LAYOUT_T = LI_LAYOUT::PA_BSND,
bool DT_W_FLAG = false, typename... Args>
struct LIType {
static constexpr bool weightsTypeFlag = DT_W_FLAG; // weight的dtype是否为FP32
using queryType = Q_T;
using keyType = K_T;
using outputType = OUT_T;
static constexpr bool pageAttention = PAGE_ATTENTION;
static constexpr LI_LAYOUT layout = LAYOUT_T;
static constexpr LI_LAYOUT keyLayout = K_LAYOUT_T;
};
struct RunInfo {
uint32_t loop;
uint32_t bN2Idx;
uint32_t bIdx;
uint32_t n2Idx = 0;
uint32_t gS1Idx;
uint32_t s2Idx;
uint32_t actS1Size = 1;
uint32_t actS2Size = 1;
uint32_t actS2SizeOrig = 1;
uint32_t actMBaseSize;
uint32_t actualSingleProcessSInnerSize;
uint32_t actualSingleProcessSInnerSizeAlign;
uint64_t tensorQueryOffset;
uint64_t tensorKeyOffset;
uint64_t tensorWeightsOffset;
uint64_t indiceOutOffset;
uint64_t valueOutOffset;
bool isFirstS2InnerLoop;
bool isLastS2InnerLoop;
bool isAllLoopEnd = false;
bool isValid = false;
};
struct ConstInfo {
// CUBE与VEC核间同步的模式
static constexpr uint32_t FIA_SYNC_MODE2 = 2;
static constexpr uint32_t QLI_SYNC_MODE4 = 4;
static constexpr uint32_t AIV0_AIV1_OFFSET = 16;
static constexpr uint32_t CROSS_VC_EVENT = 0;
static constexpr uint32_t CROSS_CV_EVENT = 2;
// BUFFER的字节数
static constexpr uint32_t BUFFER_SIZE_BYTE_32B = 32;
static constexpr uint32_t BUFFER_SIZE_BYTE_64B = 64;
static constexpr uint32_t BUFFER_SIZE_BYTE_256B = 256;
static constexpr uint32_t BUFFER_SIZE_BYTE_512B = 512;
static constexpr uint32_t BUFFER_SIZE_BYTE_1K = 1024;
static constexpr uint32_t BUFFER_SIZE_BYTE_2K = 2048;
static constexpr uint32_t BUFFER_SIZE_BYTE_4K = 4096;
static constexpr uint32_t BUFFER_SIZE_BYTE_8K = 8192;
static constexpr uint32_t BUFFER_SIZE_BYTE_16K = 16384;
static constexpr uint32_t BUFFER_SIZE_BYTE_32K = 32768;
// 无效索引
static constexpr int INVALID_IDX = -1;
uint16_t INVALID_VAL = 0;
// CUBE和VEC的核间同步EventID
uint32_t syncC1V1 = 0U;
uint32_t syncC1V0 = 2U;
uint32_t syncV1C1 = 0U;
uint32_t syncV0C1 = 1U;
// 基本块大小
uint32_t mBaseSize = 1ULL;
uint32_t mBaseSizeAlign = 1ULL;
uint32_t s1BaseSize = 1ULL;
uint32_t s2BaseSize = 1ULL;
uint64_t batchSize = 0ULL;
uint64_t gSize = 0ULL;
uint64_t qHeadNum = 0ULL;
uint64_t kHeadNum;
uint64_t headDim;
uint64_t sparseCount; // topK选取大小
uint64_t kSeqSize = 0ULL; // kv最大S长度
uint64_t qSeqSize = 1ULL; // q最大S长度
uint32_t kCacheBlockSize = 0; // PA场景的block size
uint32_t maxBlockNumPerBatch = 0; // PA场景的最大单batch block number
LI_LAYOUT outputLayout; // 输出的格式
bool attenMaskFlag = false;
int64_t preTokens = INT64_MAX;
int64_t nextTokens = INT64_MAX;
bool returnValue = false;
uint32_t actualLenQDims = 0U; // query的actualSeqLength 的维度
uint32_t actualLenDims = 0U; // KV 的actualSeqLength 的维度
bool isAccumSeqS1 = false; // 是否累加模式
bool isAccumSeqS2 = false; // 是否累加模式
bool isSparseCountOver2K = false; //sparseCount小于等于2048为false
bool isLDOpen = false;
bool returnValueFlag = false;
bool splitMFlag = false;
};
struct SplitCoreInfo {
uint32_t s2Start = 0U; // S2的起始位置
uint32_t s2End = 0U; // S2循环index上限
uint32_t bN2Start = 0U;
uint32_t bN2End = 0U;
uint32_t gS1Start = 0U;
uint32_t gS1End = 0U;
bool isLD = false; // 当前核是否需要进行Decode归约任务
bool isCoreEnable = false;
};
template <typename T>
__aicore__ inline T Align(T num, T rnd)
{
return (((rnd) == 0) ? 0 : (((num) + (rnd)-1) / (rnd) * (rnd)));
}
template <typename T1, typename T2>
__aicore__ inline T1 Min(T1 a, T2 b)
{
return (a > b) ? (b) : (a);
}
template <typename T1, typename T2>
__aicore__ inline T1 Max(T1 a, T2 b)
{
return (a > b) ? (a) : (b);
}
template <typename T>
__aicore__ inline T CeilDiv(T num, T rnd)
{
return (((rnd) == 0) ? 0 : (((num) + (rnd)-1) / (rnd)));
}
} // namespace LICommon
// bank冲突优化
// david 256KB bank layout
// shape ( bank_depth ( banks bank_groups block)) (512 ( 2 8 32))
// stride (banks*bank_groups*block (bank_groups*block block 1)) (512 (256 32 1))
#define UB_BLOCK 32 // 32B
#define UB_BANK_GROUPS 8
#define UB_BANKS 2
#define UB_BANK_DEPTH 512
#define UB_BANK_GROUP_STRIDE UB_BLOCK // 32B
#define UB_BANK_STRIDE (UB_BANK_GROUPS * UB_BLOCK) // 256B
#define UB_BANK_DEPTH_STRIDE (UB_BANKS * UB_BANK_GROUPS * UB_BLOCK) // 512B
#endif // LIGHTNING_INDEXER_COMMON_H