Mx fp6 flatmm

[eeezio]

Proposed changes

new feature: support dwordx3 sync/async load/store and support mx-fp6 flatmm

Checklist

Please put an x into the boxes that apply. You can also fill these out after creating the PR. If you're not sure, please don't hesitate to ask.

• I have added tests relevant to the introduced functionality, and the unit tests are passing locally
• I have added the test to REGRESSION_TESTS list defined at the top of CMakeLists.txt in tests/CMakeLists.txt, IF the test takes more than 30 seconds to run.
• I have added inline documentation which enables the maintainers with understanding the motivation
• I have removed the stale documentation which is no longer relevant after this pull request
• (If this change is user-facing) I have added release notes which provide the end users with a brief summary of the improvement from this pull request
• I have run clang-format on all changed files
• Any dependent changes have been merged

Discussion

If this is a relatively large or complex change, feel free to start a discussion by explaining why you chose the solution you did and what alternatives you considered

[Copilot]

Pull request overview

This PR adds support for MX-FP6 data type in the flatmm operations, including implementing dwordx3 (12-byte) synchronous and asynchronous load/store operations needed for this data type.

Changes:

• Added pk_fp6x16_t type support throughout the codebase with corresponding type traits and conversion utilities
• Implemented dwordx3 (12-byte) load/store operations for AMD buffer addressing
• Extended flatmm pipeline to handle FP6 data type with specialized tile distributions and memory layouts

Reviewed changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/ck_tile/memory_copy/test_copy.hpp	Added dwordx3 copy configuration and implementation for 12-byte data transfers
test/ck_tile/memory_copy/test_copy.cpp	Added test cases for pk_fp6x16_t memory copy operations
include/ck_tile/ops/gemm/warp/warp_gemm_attribute_mfma_impl.hpp	Added FP6 case to MFMA warp gemm attributes
include/ck_tile/ops/flatmm/pipeline/mx_flatmm_pipeline_agmem_bgmem_creg_v1_policy.hpp	Extended pipeline policy to support FP6 with dwordx3 operations and specialized tile distributions
include/ck_tile/ops/flatmm/pipeline/mx_flatmm_pipeline_agmem_bgmem_creg_v1.hpp	Updated pipeline implementation to handle FP6 data type with appropriate memory operations
include/ck_tile/ops/common/utils.hpp	Added DataTypeTraits for pk_fp6x16_t
include/ck_tile/host/reference/reference_gemm.hpp	Added FP6 support to reference GEMM implementation
include/ck_tile/host/check_err.hpp	Added error checking specialization for pk_fp6x16_t
include/ck_tile/core/tensor/buffer_view.hpp	Added support for 12-element int8_t buffer loads/stores in LDS
include/ck_tile/core/numeric/vector_type.hpp	Added int32x3_tt and int32x6_tt types for FP6 vector operations
include/ck_tile/core/numeric/type_convert.hpp	Added include for pk_fp6.hpp
include/ck_tile/core/numeric/pk_fp6.hpp	New file defining pk_fp6_t type with pack/unpack operations
include/ck_tile/core/arch/amd_buffer_addressing_builtins.hpp	Added dwordx3 load/store builtins and extended buffer operations
include/ck_tile/core/arch/amd_buffer_addressing.hpp	Added dwordx3 load support
include/ck_tile/core.hpp	Added include for pk_fp6.hpp
include/ck/utility/amd_xdlops.hpp	Updated comment for FP6 MFMA operation
example/ck_tile/18_flatmm/mxgemm/run_mx_flatmm.inc	Added FP6-specific initialization logic
example/ck_tile/18_flatmm/mxgemm/mx_flatmm_instance.cpp.in	Added FP6 type alias
example/ck_tile/18_flatmm/mxgemm/mx_flatmm_instance.cmake	Added FP6xFP6 configuration
example/ck_tile/18_flatmm/mxgemm/mx_flatmm.hpp	Added MXfp6_FlatmmConfig16 configuration
example/ck_tile/18_flatmm/mxgemm/mx_flatmm.cpp	Added FP6 case to example runner
example/ck_tile/18_flatmm/CMakeLists.txt	Removed blank line

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[Copilot]

Corrected spelling of 'danguous' to 'dangerous'.

[Copilot]

Corrected spelling of 'danguous' to 'dangerous'.

[Copilot]

Incorrect use of bitwise OR operator | instead of logical OR ||. This should be N == 12 || N == 16 to properly check if N equals 12 or 16.

Suggested change

	static_assert(N == 1 || N == 2 || N == 4 || N == 8 || N == 12 | N == 16 || N == 32 || N == 64,
	static_assert(N == 1 || N == 2 || N == 4 || N == 8 || N == 12 || N == 16 || N == 32 || N == 64,

[Copilot]

Incorrect type used in error reporting. This function checks pk_fp6x16_t ranges but reports statistics using pk_fp4_t::max(). Should use a type appropriate for pk_fp6x16_t or a generic float max value.

Suggested change

	report_error_stats(err_count, numeric<pk_fp4_t>::max(), ref.size());
	report_error_stats(err_count, std::numeric_limits<float>::max(), ref.size());