Commit Graph

14 Commits

Author SHA1 Message Date
Jon Chesterfield 9e05c084e5 [libomptarget][amdgpu][nfc] Normalise license headers
Reviewed By: gregrodgers, jdoerfert

Differential Revision: https://reviews.llvm.org/D106581
2021-07-22 20:23:41 +01:00
Jon Chesterfield a733bbbd17 [libomptarget][amdgpu][nfc] Refactor #includes
Create a hsa_api.h header that includes the ROCr headers in use
Drop some unused headers and _cplusplus macros

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D106455
2021-07-21 17:28:07 +01:00
Jon Chesterfield d86b0073cf [libomptarget][amdgpu][nfc] Fix build warnings, drop some headers
Removes stdarg header, drops uses of iostream, fix some format string errors.
Also changes a C style struct to C++ style to avoid a warning from clang/

Reviewed By: pdhaliwal

Differential Revision: https://reviews.llvm.org/D104923
2021-06-30 22:23:36 +01:00
Pushpinder Singh cadcaf3f46 [AMDGPU][Libomptarget] Drop dead code related to g_atl_machine
This patch includes some changes which deletes the code accessing
g_atl_machine global. Some accesses related to memory_pools are
still remaining.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103813
2021-06-15 05:21:35 +00:00
Pushpinder Singh 2368170a8d [AMDGPU][Libomptarget][NFC] Remove atmi_place_t
atmi_place_t has been replaced with int DeviceId.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103508
2021-06-02 10:35:28 +00:00
Pushpinder Singh fb113264a8 [AMDGPU][Libomptarget] Remove g_atmi_machine global
Turns out the only purpose of this class was verify if device ID
was in range or not which could be done easily by using g_atl_machine.

Still getting rid of g_atl_machine is pending which would be done in
a later patch.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103443
2021-06-01 12:34:24 +00:00
Pushpinder Singh 4fc3286951 [AMDGPU][Libomptarget][NFC] Split host and device malloc
This patch splits the code path for host and device malloc.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103389
2021-05-31 12:09:18 +00:00
Pushpinder Singh 8b79dfb302 [AMDGPU][Libomptarget][NFC] Remove atmi_mem_place_t
This struct was used to specify the device on which memory was
being allocated/free in atmi_malloc/free. It has now been replaced
with int DeviceId.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103239
2021-05-27 11:53:18 +00:00
Jon Chesterfield 07f59baad6 [libomptarget][nfc][amdgpu] Remove atmi_status_t type
ATMI_STATUS_UNKNOWN was unused, deleted references to it.
Replaced ATMI_STATUS_{SUCCESS,ERROR} with HSA_STATUS_{SUCCESS,ERROR}
Replaced atmi_status_t with hsa_status_t

Otherwise no change. In particular, conversions between atmi_status_t and
hsa_status_t will now be conversions between hsa_status_t and itself.

Reviewed By: pdhaliwal

Differential Revision: https://reviews.llvm.org/D103115
2021-05-26 17:02:19 +01:00
Pushpinder Singh a2d6ef5876 [AMDGPU][Libomptarget] Inline atmi_init/atmi_finalize
After D102847, these functions can be inlined.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D103075
2021-05-26 10:50:08 +00:00
Pushpinder Singh d7503c3bce [AMDGPU][Libomptarget] Rename & move g_executables to private
This patch moves g_executables to private member of Runtime class
and is renamed to HSAExecutables following LLVM naming convention.

This movement required making Runtime::Initialize and Runtime::Finalize
non-static. Verified the correctness of this change by running
libomptarget tests on gfx906.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D102600
2021-05-18 05:43:23 +00:00
Jon Chesterfield dc70c56be5 [libomptarget][amdgpu][nfc] Update comments
[libomptarget][amdgpu][nfc] Update comments

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D95295
2021-01-23 22:53:58 +00:00
JonChesterfield 5d989fb37d [libomptarget][amdgpu] Improve thread safety, remove dead code 2020-08-26 22:04:03 +01:00
Jon Chesterfield d0b312955f [libomptarget] Implement host plugin for amdgpu
[libomptarget] Implement host plugin for amdgpu

Replacement for D71384. Primary difference is inlining the dependency on atmi
followed by extensive simplification and bugfixes. This is the latest version
from https://github.com/ROCm-Developer-Tools/amd-llvm-project/tree/aomp12 with
minor patches and a rename from hsa to amdgpu, on the basis that this can't be
used by other implementations of hsa without additional work.

This will not build unless the ROCM_DIR variable is passed so won't break other
builds. That variable is used to locate two amdgpu specific libraries that ship
as part of rocm:
libhsakmt at https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface
libhsa-runtime64 at https://github.com/RadeonOpenCompute/ROCR-Runtime
These libraries build from source. The build scripts in those repos are for
shared libraries, but can be adapted to statically link both into this plugin.

There are caveats.
- This works well enough to run various tests and benchmarks, and will be used
  to support the current clang bring up
- It is adequately thread safe for the above but there will be races remaining
- It is not stylistically correct for llvm, though has had clang-format run
- It has suboptimal memory management and locking strategies
- The debug printing / error handling is inconsistent

I would like to contribute this pretty much as-is and then improve it in-tree.
This would be advantagous because the aomp12 branch that was in use for fixing
this codebase has just been joined with the amd internal rocm dev process.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D85742
2020-08-15 23:58:28 +01:00