b78588d163
* CUTLASS 3.7 * clean up changelog --------- Co-authored-by: yuzhai <yuzhai@nvidia.com> Co-authored-by: Haicheng Wu <haichengw@nvidia.com>
271 lines
8.1 KiB
C++
271 lines
8.1 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017 - 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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/*! \file
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\brief Architecture-specific operators on memory added for SM75
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*/
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#pragma once
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#include "cutlass/array.h"
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#include "cutlass/detail/helper_macros.hpp"
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#include "cutlass/layout/matrix.h"
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#include "cute/arch/copy_sm75.hpp"
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#include "cute/arch/util.hpp"
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namespace cutlass {
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namespace arch {
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <
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/// Layout of destination matrix (column-major implies transpose)
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typename Layout,
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/// .x1, .x2, or .x4
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int MatrixCount
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>
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CUTLASS_DEVICE void ldsm(Array<unsigned, MatrixCount> & D, void const* ptr);
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/////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Determine the appropriate way to target PTX's "ldmatrix" instruction.
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//
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/////////////////////////////////////////////////////////////////////////////////////////////////
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/// CUTLASS helper to get SMEM pointer
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CUTLASS_DEVICE unsigned cutlass_get_smem_pointer(void *ptr) {
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return cute::cast_smem_ptr_to_uint(ptr);
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}
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/// CUTLASS helper to get SMEM pointer
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CUTLASS_DEVICE unsigned cutlass_get_smem_pointer(void const *ptr) {
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return cutlass_get_smem_pointer(const_cast<void *>(ptr));
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::RowMajor, 1>(
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Array<unsigned, 1> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x;
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asm volatile ("ldmatrix.sync.aligned.x1.m8n8.shared.b16 {%0}, [%1];" : "=r"(x) : "r"(addr));
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reinterpret_cast<int &>(D) = x;
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::RowMajor, 2>(
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Array<unsigned, 2> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x, y;
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asm volatile ("ldmatrix.sync.aligned.x2.m8n8.shared.b16 {%0, %1}, [%2];" : "=r"(x), "=r"(y) : "r"(addr));
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reinterpret_cast<int2 &>(D) = make_int2(x, y);
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::RowMajor, 4>(
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Array<unsigned, 4> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x, y, z, w;
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asm volatile ("ldmatrix.sync.aligned.x4.m8n8.shared.b16 {%0, %1, %2, %3}, [%4];" : "=r"(x), "=r"(y), "=r"(z), "=r"(w) : "r"(addr));
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reinterpret_cast<int4 &>(D) = make_int4(x, y, z, w);
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Transpose on 16b granularity
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//
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::ColumnMajor, 1>(
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Array<unsigned, 1> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x;
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asm volatile ("ldmatrix.sync.aligned.x1.trans.m8n8.shared.b16 {%0}, [%1];" : "=r"(x) : "r"(addr));
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reinterpret_cast<int &>(D) = x;
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::ColumnMajor, 2>(
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Array<unsigned, 2> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x, y;
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asm volatile ("ldmatrix.sync.aligned.x2.trans.m8n8.shared.b16 {%0, %1}, [%2];" : "=r"(x), "=r"(y) : "r"(addr));
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reinterpret_cast<int2 &>(D) = make_int2(x, y);
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <>
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CUTLASS_DEVICE void ldsm<layout::ColumnMajor, 4>(
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Array<unsigned, 4> & D,
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void const* ptr) {
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#if defined(CUTE_ARCH_LDSM_SM75_ACTIVATED)
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unsigned addr = cutlass_get_smem_pointer(ptr);
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int x, y, z, w;
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asm volatile ("ldmatrix.sync.aligned.x4.trans.m8n8.shared.b16 {%0, %1, %2, %3}, [%4];" : "=r"(x), "=r"(y), "=r"(z), "=r"(w) : "r"(addr));
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reinterpret_cast<int4 &>(D) = make_int4(x, y, z, w);
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#else
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CUTLASS_UNUSED(D);
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CUTLASS_UNUSED(ptr);
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CUTLASS_NOT_IMPLEMENTED();
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <typename AccessType, int Bytes>
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struct shared_load_op {
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CUTLASS_DEVICE
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shared_load_op(AccessType &D, void const *ptr) {
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D = *reinterpret_cast<AccessType const *>(ptr);
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}
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};
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template <typename AccessType>
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CUTLASS_DEVICE void shared_load(AccessType &D, void const *ptr) {
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shared_load_op<AccessType, int(sizeof(AccessType))>(D, ptr);
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <typename AccessType>
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struct shared_load_op<AccessType, 16> {
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CUTLASS_DEVICE
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shared_load_op(AccessType &D, void const *ptr) {
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unsigned addr = cutlass_get_smem_pointer(ptr);
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uint4 v;
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asm volatile ("ld.shared.v4.b32 {%0, %1, %2, %3}, [%4];" :
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"=r"(v.x), "=r"(v.y), "=r"(v.z), "=r"(v.w) : "r"(addr));
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D = reinterpret_cast<AccessType const &>(v);
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <typename AccessType>
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struct shared_load_op<AccessType, 8> {
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CUTLASS_DEVICE
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shared_load_op(AccessType &D, void const *ptr) {
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unsigned addr = cutlass_get_smem_pointer(ptr);
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uint2 v;
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asm volatile ("ld.shared.v2.b32 {%0, %1}, [%2];" :
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"=r"(v.x), "=r"(v.y) : "r"(addr));
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D = reinterpret_cast<AccessType const &>(v);
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////
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} // namespace arch
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} // namespace cutlass
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