ECR #304775 - Bug 10752 kernel caching feature (AMDIL and HSAIL path)
1. For the stage we want to cache, call getCacheEntry() followed by makeCacheEntry() if the get fails; otherwise directly return cached data.
a. Each device have a separate cache directory
b. It logs caching errors, so we can debug the cache and/or detect collisions
2. Implementeded cache size tracking, so we can evict old data when cache files are too large
3. Added file/path access permission control on both windows and linux
4. Have read/write file lock protection
5. -kcache-disable flag can be used to turn on/off the caching functionality
6. AMD_FORCE_KCACHE_TEST env variable is used for internal testing
TO DO:
1. Tracking of timestamps for cache entries
-LRU eviction when cache grows too large
2. Track cache entries per application
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/cache.cpp#1 add
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/cache.hpp#1 add
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/frontend.cpp#34 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/frontend_clang.cpp#20 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/v0_8/if_acl.cpp#68 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/amdil_be.cpp#43 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/hsail_be.cpp#42 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#124 edit
... //depot/stg/opencl/drivers/opencl/tests/kcache/Makefile#1 add
... //depot/stg/opencl/drivers/opencl/tests/kcache/build/Makefile#1 add
... //depot/stg/opencl/drivers/opencl/tests/kcache/build/Makefile.kcache#1 add
... //depot/stg/opencl/drivers/opencl/tests/kcache/kCacheTest_std.txt#1 add
... //depot/stg/opencl/drivers/opencl/tests/kcache/kernel.cl#1 add
... //depot/stg/opencl/drivers/opencl/tests/kcache/main.cpp#1 add
EPR #403782 - IOMMU2/SVM
- Enable SCOption_R1200_ENABLE_XNACK whenever IOMMUv2 is supported.
- Add "-sc-xnack-iommu" option for compile and link and pass this to SCWrapper in the options string.
ReviewBoardURL = http://ocltc.amd.com/reviews/r/7266/diff/
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/scStateSI.cpp#30 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#122 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpukernel.cpp#282 edit
EPR #405889 - Added option to set VGPR/SGPR/LDS usage in ISA to certain value greater than actual usage for debugging purpose. If the given value is smaller than actual value, this option has no effect.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/scCompileSI.cpp#52 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/scHWShaderInfo.h#2 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#121 edit
EPR #407056, #407061, #406980 - Back out changelist 1083545 since it causes a bunch of perf degradations. Will add a heurstics for -scras=2 for memory bound kernels only.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#118 edit
EPR #402000 - [CQE OCL][Perf][QR] ~6-7% perf drop in CompuCL Benchmark (Graphics: T-Rex subtest).
Add option to disable SC merge memory loads and stores. By default it is disabled. Will decide whether to enable it by default after performance runs.
cherrypick 1076590 and CL#1077419 from sc stg for adding option in sc.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/sc/Interface/SCCommon.h#42 integrate
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/sc/Src/CompilerBase.cpp#51 integrate
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/sc/Src/CompilerBase.hpp#35 integrate
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/sc/Src/HwUtils.cpp#36 integrate
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/scState.cpp#32 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#114 edit
EPR #405194 - Change unroll threshold to LLVM default to partially work around Linpack performance problem.
Prior to CL 1058428, which increased the unroll threshold to 200, this was only 100 which is lower than the LLVM default. Linpack's new ISA has increased register usage, but decreasing the unroll threshold to the previous level does not reduce the register count to its previous level. The increased register usage is probably a new SC problem, so this should probably be increased again in the future. There is no change in register usage with 100 vs. 150 on Linpack.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#113 edit
ECR #333756 - HSA Finalizer: added runtime option to force buffer instructions for global access
This can be used under ORCA RT.
Testing: smoke, smoke_clang, precheckin, clbas dgemm
Reviewed by Nikolay Haustov
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/scStateSI.cpp#24 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#112 edit
ECR #304775 - Bug 10112 - Raise default unroll threshold. The current default is 100, which is even lower than the LLVM default of 150. Increasing to 200 is a modest increase, and this should probably be even higher.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#111 edit
EPR #389586 - Add workaround for VI SPI SGPR initialization hardware bug for HSAIL path.
There is a hardware bug in VI (UBTS502672) which requires a workaround. Compute shaders need to tell shader compiler the available sGPR is 78 and set sGPUR usage in the compiled ISA to be 94. It has been done in AMDIL path but not done in HSAIL path. This change will apply the workaround to HSAIL path.
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/devStateSI.cpp#16 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/devStateSI.h#11 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/gpu/scwrapper/SI/scCompileSI.cpp#41 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/OPTIONS.def#109 edit
foreman