Revert "[CK_TILE] Implement RTC API for a subset of FMHA
functionality for MGX" (#8333)
Reverts ROCm/rocm-libraries#6086
Need to revert as the codegen test for fmha is failing due to including
std header:
2026-06-11T22:36:03.673Z] In file included from
/tmp/comgr-953928-0-473822/include/ck/host/device_fmha_fwd/fmha_fwd_wrapper.hpp:8:
[2026-06-11T22:36:03.673Z] In file included from
/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/cmath:49:
[2026-06-11T22:36:03.673Z] In file included from
/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/std_abs.h:38:
[2026-06-11T22:36:03.673Z] /usr/include/stdlib.h:32:10: fatal error:
'stddef.h' file not found
[2026-06-11T22:36:03.673Z] 32 | #include <stddef.h>
[2026-06-11T22:36:03.673Z] | ^~~~~~~~~~
The ck_tile headers were never prepped for hiprtc compilation.
[CK_TILE] Implement RTC API for a subset of FMHA
functionality for MGX (#6086)
## Motivation
Introduce a wrapper for the FmhaFwdKernel, for use in real time
compilation in MIGraphX.
## Technical Details
The intent of the API is to provide multiple instances of the
FmhaFwdKernelWrapper, suitable for a particular problem definition.
At the moment the wrapper only supports bias and causal masking, feature
expansion will come in a future pr.
The usage pattern is, in short:
1. Define fmha_fwd::Problem (input dimensions, data type, etc)
2. Fetch Solutions for target architecture (currently only gfx942) based
on Problem.
The solutions contain a map of template -> template parameter and can be
converted to a string representing the full instantiation of
FmhFwdKernelWrapper e.g. `ck_tile::FmhaFwdWrapper<ck_tile::fp16_t, 128,
64, 16, 32, 32, 32, 4, 1, 1, 4, 1, 1, 32, 32, 16, 32, 32, 16, false,
true, false, true, true, true, true, ck_tile::FmhaPipelineTag::QR>`
3. The instance can then be used in an RTC kernel. The kernel needs to:
* Construct a Descriptor (containing descriptions of all input tensors)
* Call IsValid() on the descriptor to check if the instance is
applicable. Note that this is constexpr by design so that it can fail
the kernel compilation as a signal that the kernel is not applicable.
* Pass the descriptor and input pointers to the wrapper Run method.
A more detailed example of usage can be found in
codegen/test/fmh_fwd.cpp
Beside work on creating the wrapper and the supporting API, the PR also
contains some changes necessary to enable compilation with HIPRTC.
The contents of the CK tile headers are embedded in a binary file which
is used to pass the header files as strings to HIPRTC.
Many of the ck tile headers contain host only code which leads to
compilation failures.
ck_tile_headers_preprocessor goes through the embedded headers and
removes the bodies of host only functions, thereby eliminating the
compilation failures.
## Test Plan
<!-- Explain any relevant testing done to verify this PR. -->
## Test Result
<!-- Briefly summarize test outcomes. -->
## Submission Checklist
- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
* - elevate important build messages to log level STATUS
- comment out the rest (temporarily)
* - marked all low importance build messages as log_level=DEBUG
* Build codegen as standalone
* Add exception for device tests
* Use local filesystem header
* add a codegen test CI stage and daily build
---------
Co-authored-by: illsilin <Illia.Silin@amd.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
* Format
* Format
* Format
* Remove const
* Use the right template
* Format
* Format
* add row/col instances
* Add missing file
* fixed
* Format
* Updates
* Format
* fixed rrr layout
* Format
* Update test and embed modules
* Restore older version
* Update year
* Set -fPIC
* Format
* Use double for isnan
* rename host folder to codegen + minor fix
* add codegen CI test
* add option to build components without building CK
* fix the groovy syntax
* fix typo
* use the correct function for the codegen stage
---------
Co-authored-by: Jing Zhang <jizha@amd.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: illsilin <Illia.Silin@amd.com>
