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paddlepaddle--paddle/paddle/phi/kernels/fusion/gpu/fused_partial_rope_utils.h
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
//
// 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.
#pragma once
#include "paddle/phi/backends/gpu/gpu_context.h"
#include "paddle/phi/core/dense_tensor.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/primitive/datamover_primitives.h"
#define SWITCH_NOPE_HEAD_DIM(__dim, ...) \
if (__dim == 32) { \
constexpr int NopeSize = 32; \
{ __VA_ARGS__ } \
} else if (__dim == 64) { \
constexpr int NopeSize = 64; \
{ __VA_ARGS__ } \
} else if (__dim == 96) { \
constexpr int NopeSize = 96; \
{ __VA_ARGS__ } \
} else if (__dim == 128) { \
constexpr int NopeSize = 128; \
{ __VA_ARGS__ } \
} else { \
constexpr int NopeSize = 0; \
{ __VA_ARGS__ } \
}
#define SWITCH_PE_HEAD_DIM(__dim, ...) \
if (__dim == 32) { \
constexpr int PeSize = 32; \
{ __VA_ARGS__ } \
} else if (__dim == 64) { \
constexpr int PeSize = 64; \
{ __VA_ARGS__ } \
} else if (__dim == 96) { \
constexpr int PeSize = 96; \
{ __VA_ARGS__ } \
} else if (__dim == 128) { \
constexpr int PeSize = 128; \
{ __VA_ARGS__ } \
} else { \
constexpr int PeSize = 0; \
{ __VA_ARGS__ } \
}
// Note: pe_head_dim must be divisible by 2x of the vector size.
#define SWITCH_VEC_SIZE(__nope_head_dim, __pe_head_dim, ...) \
if (__nope_head_dim % 4 == 0 && __nope_head_dim >= 128 && \
__pe_head_dim % 8 == 0 && __pe_head_dim >= 128) { \
constexpr int VecSize = 4; \
{ __VA_ARGS__ } \
} else if (__nope_head_dim % 2 == 0 && __nope_head_dim >= 64 && \
__pe_head_dim % 4 == 0 && __pe_head_dim >= 64) { \
constexpr int VecSize = 2; \
{ __VA_ARGS__ } \
} else { \
constexpr int VecSize = 1; \
{ __VA_ARGS__ } \
}
#define SWITCH_ROPE_KERNEL(__nope_head_dim, __pe_head_dim, ...) \
SWITCH_NOPE_HEAD_DIM( \
__nope_head_dim, \
SWITCH_PE_HEAD_DIM( \
__pe_head_dim, \
SWITCH_VEC_SIZE(__nope_head_dim, __pe_head_dim, {__VA_ARGS__})))
#define LOOP_WITH_SIZE_HINT(__index, __init, __size, __stride, __hint) \
for (uint32_t __index = (__init), __offset = 0; \
(__hint) > 0 ? __offset < (__hint) : __index < (__size); \
__index += (__stride), __offset += (__stride)) \
if ((__hint) == 0 || (__hint) % (__stride) == 0 || \
__offset + (__stride) < (__hint) || __index < (__size))