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composable_kernel/example/ck_tile/01_fmha/CMakeLists.txt
Po Yen Chen 05292b3604 [CK_TILE][FMHA] Integrate FAv2 & FAv3 (WIP) in the single fmha_fwd() API (#3153) 
* Let fmha_fwd_v3() compatible with fmha_fwd()

* Decouple get_fwd_blobs() and FmhaFwdKernel

* Decouple compatibility checks from get_fwd_blobs()

* Extract product feature checks out from get_fwd_blobs()

* Remove duplicated code in factories and redundant checks

* Remove FmhaFwdKernel<>::GetName()

* Let FmhaFwdApiPool support pipelines with different mask_impl

* Add tile setting for fmha fwd v3 pipeline

* Add fwd v3 instances to tile_example_fmha_fwd manually

* Remove unused function import

* Undo irrelevant changes

* Remove fwd v3 instances from tile_example_fmha_fwd

* Finish fmha fwd v3 kernel instance codegen

* Fix formatting

* Remove unused F_idx attribute

* Add is_generic_attention_mask<> traits

* Add constraints to the fmha fwd v3 pipeline

* Unify traits & problem used for fmha fwd v3

* Unify kernel launch code for fmha fwd v2 & v3

* Unify kernel template selection logic

* Use same kernel codegen template for both v2 & v3

* Rename api() property as render() method

* Allow specifying filter for fmha fwd api pool

* Allow specifying function name when rendering api pool items

* Separate fmha fwd v3 kernel dispatching logic from v2

* Remove lambda assignment

* Add simple v2/v3 dispatch logic

* Stop generating empty if-clauses

Skip iterating over dictionaries that have no traits, and avoid assigning i_* to them.

* Use "".join() to concatenate fmha fwd api string content

* Add more feature checks for fmha fwd v3 pipeline

* Check features before dispatch to fmha_fwd_v3()

* Add more feature checks for fmha_fwd_v3()

* Add missing filter call

* Use Tuple to reserve the dtype orders

* Fix wrong pipeline matching logic

* Add fmha fwd v3 group mode instances

* Add functor_transform<>

* Add type constraints to make_tile_window()

* Remove fmha fwd v3 example

* Fix wrong product(aiter mha_fwd()) config

* Fix wrong fmha fwd v2/v3 selection logic

* Fix formatting

* Add comment to warning v3 kernel users

* Fix wrong codegen logics

* Remove unnecessary param

* Fix format

---------

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2025-12-05 10:31:12 +08:00

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# Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
# SPDX-License-Identifier: MIT
set(INST_TARGETS ${SUPPORTED_GPU_TARGETS})
# Currently only gfx9 and gfx12 archs are supported by FMHA
list(FILTER INST_TARGETS INCLUDE REGEX "gfx9|gfx12")
if(NOT INST_TARGETS)
message(WARNING "Skipping Tile Engine FMHA compilation: No supported GPU targets (gfx9, gfx12) found in SUPPORTED_GPU_TARGETS: ${SUPPORTED_GPU_TARGETS}")
return()
endif()
# validate user-specified fmha_fwd API list
set(FMHA_FWD_KNOWN_APIS "fwd;fwd_splitkv;fwd_appendkv;pagedkv_prefill")
set(FMHA_FWD_ENABLE_APIS "fwd" CACHE STRING
"semicolon-separated list of APIs to generate (${FMHA_FWD_KNOWN_APIS}) & link, or \"all\".")
if(BUILD_TESTING)
# Build instances of all APIs for tests
message(DEBUG "Enabling all FWD APIs of CK Tile FMHA for because testing is enabled")
set(FMHA_FWD_ENABLE_APIS "all")
endif()
if(FMHA_FWD_ENABLE_APIS STREQUAL "all")
set(FMHA_FWD_ENABLE_APIS ${FMHA_FWD_KNOWN_APIS})
endif()
foreach(api ${FMHA_FWD_ENABLE_APIS})
if(NOT "${api}" IN_LIST FMHA_FWD_KNOWN_APIS)
message(FATAL_ERROR "${api} isn't a known api: ${FMHA_FWD_KNOWN_APIS}.")
endif()
endforeach()
# "fwd" is a must-have api for the fmha_fwd example, add it if not specified
if(NOT "fwd" IN_LIST FMHA_FWD_ENABLE_APIS)
list(PREPEND FMHA_FWD_ENABLE_APIS "fwd")
endif()
file(GLOB_RECURSE CODE_GEN_SCRIPTS CONFIGURE_DEPENDS
${CMAKE_CURRENT_LIST_DIR}/generate.py
${CMAKE_CURRENT_LIST_DIR}/codegen/*.py
)
# re-run execute_process `generate.py --list_blobs` if any of the codegen scripts change
set_directory_properties(PROPERTIES CMAKE_CONFIGURE_DEPENDS "${CODE_GEN_SCRIPTS}")
list(JOIN INST_TARGETS , FMHA_TARGETS_ARG)
string(REPLACE ";" "," FMHA_FWD_APIS "${FMHA_FWD_ENABLE_APIS}")
set(FMHA_FWD_CODE_GEN_COMMON_ARGS
${CMAKE_CURRENT_LIST_DIR}/generate.py
--targets ${FMHA_TARGETS_ARG}
--api ${FMHA_FWD_APIS}
--optdim 32,64,128,256
# --filter fmha_fwd...
)
set(FMHA_BWD_CODE_GEN_COMMON_ARGS
${CMAKE_CURRENT_LIST_DIR}/generate.py
--targets ${FMHA_TARGETS_ARG}
--api bwd
--receipt 3
--optdim 32,64,96,128,256
# --filter fmha_bwd_dot...@fmha_bwd_convert...@fmha_bwd...
)
# Reduce building time by disabling instances that are not currently used in the gtests
# TODO: Consider to use a special receipt for testing only, or even two receipts: a small subset of
# instances for quick CI runs and a larger subset for scheduled runs (the tests skip tests when
# there is no corresponding instance for parameters).
if(BUILD_TESTING)
# Filters are in the order of FMHA_FWD_KNOWN_APIS: fwd,fwd_splitkv_combine@fwd_splitkv,fwd_appendkv,pagedkv_prefill
list(APPEND FMHA_FWD_CODE_GEN_COMMON_ARGS --filter *_nlogits*_nskip*,*@*_nlogits*_nbias*,*,*_nlogits*_nskip*_pagedkv)
endif()
# generate a list of kernels, but not actually emit files at config sta
execute_process(
COMMAND ${Python3_EXECUTABLE} ${FMHA_FWD_CODE_GEN_COMMON_ARGS}
--list_blobs ${CMAKE_CURRENT_BINARY_DIR}/fwd_blob_list.txt
RESULT_VARIABLE ret
)
if(ret AND NOT ret EQUAL 0)
message(FATAL_ERROR "CK Tile FMHA FAILED to generate a list of FWD kernels via Python.")
endif()
execute_process(
COMMAND ${Python3_EXECUTABLE} ${FMHA_BWD_CODE_GEN_COMMON_ARGS}
--list_blobs ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt
RESULT_VARIABLE ret
)
if(ret AND NOT ret EQUAL 0)
message(FATAL_ERROR "CK Tile FMHA FAILED to generate a list of BWD kernels via Python.")
endif()
# NOTE: for cmake, the FMHA_FWD_GEN_BLOBS/FMHA_BWD_GEN_BLOBS files must be in the same directory
# as current cmake list, otherwise will not figure out the dependency properly
file(STRINGS ${CMAKE_CURRENT_BINARY_DIR}/fwd_blob_list.txt FMHA_FWD_GEN_BLOBS)
file(STRINGS ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt FMHA_BWD_GEN_BLOBS)
add_custom_command(
OUTPUT ${FMHA_FWD_GEN_BLOBS}
COMMAND ${Python3_EXECUTABLE} ${FMHA_FWD_CODE_GEN_COMMON_ARGS}
--output_dir ${CMAKE_CURRENT_BINARY_DIR}
DEPENDS ${CODE_GEN_SCRIPTS}
COMMENT "Generate CK Tile FMHA FWD kernels"
)
add_custom_command(
OUTPUT ${FMHA_BWD_GEN_BLOBS}
COMMAND ${Python3_EXECUTABLE} ${FMHA_BWD_CODE_GEN_COMMON_ARGS}
--output_dir ${CMAKE_CURRENT_BINARY_DIR}
DEPENDS ${CODE_GEN_SCRIPTS}
COMMENT "Generate CK Tile FMHA BWD kernels"
)
set(FMHA_FWD_INSTANCES "tile_fmha_fwd_instances")
set(FMHA_BWD_INSTANCES "tile_fmha_bwd_instances")
message(DEBUG "adding instances ${FMHA_FWD_INSTANCES}")
# to save build time, exclude the target from "all" target of "01_fmha" directory and its ancestors
add_library(${FMHA_FWD_INSTANCES} OBJECT EXCLUDE_FROM_ALL)
target_include_directories(${FMHA_FWD_INSTANCES} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
target_sources(${FMHA_FWD_INSTANCES} PRIVATE ${FMHA_FWD_GEN_BLOBS})
set_source_files_properties(${FMHA_FWD_GEN_BLOBS} PROPERTIES LANGUAGE HIP)
set_property(TARGET ${FMHA_FWD_INSTANCES} PROPERTY HIP_ARCHITECTURES ${INST_TARGETS})
message(DEBUG "adding instances ${FMHA_BWD_INSTANCES}")
add_library(${FMHA_BWD_INSTANCES} OBJECT EXCLUDE_FROM_ALL)
target_include_directories(${FMHA_BWD_INSTANCES} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
target_sources(${FMHA_BWD_INSTANCES} PRIVATE ${FMHA_BWD_GEN_BLOBS})
set_source_files_properties(${FMHA_BWD_GEN_BLOBS} PROPERTIES LANGUAGE HIP)
set_property(TARGET ${FMHA_BWD_INSTANCES} PROPERTY HIP_ARCHITECTURES ${INST_TARGETS})
set(FMHA_FWD_PRIVATE_COMPILE_OPTIONS)
set(FMHA_BWD_PRIVATE_COMPILE_OPTIONS)
set(FMHA_FWD_INTERFACE_COMPILE_OPTIONS)
set(FMHA_BWD_INTERFACE_COMPILE_OPTIONS)
# NOTE: we turn off undefined-func-template to let source compile without explicit declare function specializations
# ... because they are auto-generated
list(APPEND FMHA_FWD_PRIVATE_COMPILE_OPTIONS -Wno-undefined-func-template)
list(APPEND FMHA_BWD_PRIVATE_COMPILE_OPTIONS -Wno-undefined-func-template)
# Allow comparing floating points directly in order to check sentinel values
list(APPEND FMHA_FWD_PRIVATE_COMPILE_OPTIONS -Wno-float-equal)
list(APPEND FMHA_BWD_PRIVATE_COMPILE_OPTIONS -Wno-float-equal)
# NOTE: this is dangerous since will change the whole kernel to flush denormals
# WIP with compiler team for an exp2 intrinsic..., then remove this
if(NOT DEFINED FMHA_FWD_FAST_EXP2)
set(FMHA_FWD_FAST_EXP2 ON)
endif()
if(FMHA_FWD_FAST_EXP2)
list(APPEND FMHA_FWD_PRIVATE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_FAST_EXP2=1 -fgpu-flush-denormals-to-zero)
else()
list(APPEND FMHA_FWD_PRIVATE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_FAST_EXP2=0)
endif()
list(APPEND FMHA_BWD_PRIVATE_COMPILE_OPTIONS -fgpu-flush-denormals-to-zero)
# conditionally enable call to the fwd_splitkv API in fmha_fwd example and tests
if("fwd_splitkv" IN_LIST FMHA_FWD_ENABLE_APIS)
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_SPLITKV_API=1)
else()
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_SPLITKV_API=0)
endif()
# conditionally enable call to the fwd_appendkv API in fmha_fwd example and tests
if("fwd_appendkv" IN_LIST FMHA_FWD_ENABLE_APIS)
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_APPENDKV_API=1)
else()
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_APPENDKV_API=0)
endif()
# conditionally enable call to the pagedkv_prefill API in fmha_fwd example and tests
if("pagedkv_prefill" IN_LIST FMHA_FWD_ENABLE_APIS)
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_PAGEDKV_API=1)
else()
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FMHA_FWD_PAGEDKV_API=0)
endif()
# conditionally specify the use of OCP_FP8
if(CK_USE_OCP_FP8)
list(APPEND FMHA_FWD_PRIVATE_COMPILE_OPTIONS -DCK_TILE_USE_OCP_FP8)
list(APPEND FMHA_FWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_USE_OCP_FP8)
endif()
# use RTN_ASM on float to bfloat16 conversion by default, align with FA upstream
list(APPEND FMHA_BWD_PRIVATE_COMPILE_OPTIONS -DCK_TILE_FLOAT_TO_BFLOAT16_DEFAULT=3)
list(APPEND FMHA_BWD_INTERFACE_COMPILE_OPTIONS -DCK_TILE_FLOAT_TO_BFLOAT16_DEFAULT=3)
target_compile_options(${FMHA_FWD_INSTANCES}
PRIVATE ${FMHA_FWD_PRIVATE_COMPILE_OPTIONS}
INTERFACE ${FMHA_FWD_INTERFACE_COMPILE_OPTIONS})
target_compile_options(${FMHA_BWD_INSTANCES}
PRIVATE ${FMHA_BWD_PRIVATE_COMPILE_OPTIONS}
INTERFACE ${FMHA_BWD_INTERFACE_COMPILE_OPTIONS})
set(EXAMPLE_FMHA_FWD "tile_example_fmha_fwd")
set(EXAMPLE_FMHA_BWD "tile_example_fmha_bwd")
message(DEBUG "adding example ${EXAMPLE_FMHA_FWD}")
# not using add_example_executable() to add this target, since we don't want this to be included in
# "make all/install/check"
add_executable(${EXAMPLE_FMHA_FWD} EXCLUDE_FROM_ALL example_fmha_fwd.cpp)
target_link_libraries(${EXAMPLE_FMHA_FWD} ${FMHA_FWD_INSTANCES})
target_include_directories(${EXAMPLE_FMHA_FWD} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
message(DEBUG "adding example ${EXAMPLE_FMHA_BWD}")
# not using add_example_executable() to add this target, since we don't want this to be included in
# "make all/install/check"
add_executable(${EXAMPLE_FMHA_BWD} EXCLUDE_FROM_ALL example_fmha_bwd.cpp)
target_link_libraries(${EXAMPLE_FMHA_BWD} ${FMHA_BWD_INSTANCES})
target_include_directories(${EXAMPLE_FMHA_BWD} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
# TODO: we have to turn off this global prop, otherwise the progress bar generated
# by cmake will print too many files, execvp: /bin/sh: Argument list too long
# however, this property may affect global
# TODO: consider codegen a makefile by us
set_property(GLOBAL PROPERTY RULE_MESSAGES OFF)
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