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7 Commits

Author SHA1 Message Date
Konstantin Zhuravlyov 70303c011f AMDGPU/NFC: Move AMDGPU specific note types to ELF.h 
Differential Revision: https://reviews.llvm.org/D38747

llvm-svn: 315608
 2017-10-12 18:59:54 +00:00
Konstantin Zhuravlyov c3beb6a075 AMDGPU/NFC: Minor clean ups in PAL metadata 
- Move PAL metadata definitions to AMDGPUMetadata
  - Make naming consistent with HSA metadata

Differential Revision: https://reviews.llvm.org/D38745

llvm-svn: 315523
 2017-10-11 22:41:09 +00:00
Tim Renouf 72800f0436 [AMDGPU] implemented pal metadata 
Summary:
For the amdpal OS type:

We write an AMDGPU_PAL_METADATA record in the .note section in the ELF
(or as an assembler directive). It contains key=value pairs of 32 bit
ints. It is a merge of metadata from codegen of the shaders, and
metadata provided by the frontend as _amdgpu_pal_metadata IR metadata.
Where both sources have a key=value with the same key, the two values
are ORed together.

This .note record is part of the amdpal ABI and will be documented in
docs/AMDGPUUsage.rst in a future commit.

Eventually the amdpal OS type will stop generating the .AMDGPU.config
section once the frontend has safely moved over to using the .note
records above instead of .AMDGPU.config.

Reviewers: arsenm, nhaehnle, dstuttard

Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, t-tye

Differential Revision: https://reviews.llvm.org/D37753

llvm-svn: 314829
 2017-10-03 19:03:52 +00:00
Konstantin Zhuravlyov 7498cd61fb [AMDGPU] Restructure code object metadata creation 
- Rename runtime metadata -> code object metadata
  - Make metadata not flow
  - Switch enums to use ScalarEnumerationTraits
  - Cleanup and move AMDGPUCodeObjectMetadata.h to AMDGPU/MCTargetDesc
  - Introduce in-memory representation for attributes
  - Code object metadata streamer
  - Create metadata for isa and printf during EmitStartOfAsmFile
  - Create metadata for kernel during EmitFunctionBodyStart
  - Finalize and emit metadata to .note during EmitEndOfAsmFile
  - Other minor improvements/bug fixes

Differential Revision: https://reviews.llvm.org/D29948

llvm-svn: 298552
 2017-03-22 22:32:22 +00:00
Yaxun Liu 874d26a89d Rename PT_NOTE namespace name used in AMDGPUPTNote.h 
Patch by Guansong Zhang.

Differential Revision: https://reviews.llvm.org/D30750

llvm-svn: 297498
 2017-03-10 19:35:43 +00:00
Konstantin Zhuravlyov 400771edd6 [AMDGPU] Bump up n_type for metadata v2 
Differential Revision: https://reviews.llvm.org/D29115

llvm-svn: 293083
 2017-01-25 20:47:17 +00:00
Yaxun Liu d6fbe65040 AMDGPU: Emit runtime metadata as a note element in .note section 
Currently runtime metadata is emitted as an ELF section with name .AMDGPU.runtime_metadata.

However there is a standard way to convey vendor specific information about how to run an ELF binary, which is called vendor-specific note element (http://www.netbsd.org/docs/kernel/elf-notes.html).

This patch lets AMDGPU backend emits runtime metadata as a note element in .note section.

Differential Revision: https://reviews.llvm.org/D25781

llvm-svn: 286502
 2016-11-10 21:18:49 +00:00