https://bugs.freedesktop.org/show_bug.cgi?id=94012
Bug ID: 94012 Summary: Tonga OpenCL clpeak vm faults Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: adf.lists@gmail.com
Created attachment 121540 --> https://bugs.freedesktop.org/attachment.cgi?id=121540&action=edit vm debug
R9285 llvm,mesa,libclc yesterdays gits.
No ideea if this is a regression as I've only just noticed tonga got added to libclc so this is first time testing OpenCL.
clpeak - https://github.com/krrishnarraj/clpeak.git
produces vmfaults. It will run to completion.
R600_DEBUG=check_vm ./clpeak
Platform: Clover Device: AMD TONGA (DRM 3.1.0, LLVM 3.9.0) Driver version : 11.2.0-devel (Linux x64) Compute units : 28 Clock frequency : 0 MHz
Global memory bandwidth (GBPS) float : 1.45 float2 : 1.44 float4 : 1.45 float8 : 1.45 float16 : Detected a VM fault, exiting...
Attaching output and vm debug file from
R600_DEBUG=check_vm,cs ./clpeak &>~/clpeak-cs
https://bugs.freedesktop.org/show_bug.cgi?id=94012
--- Comment #1 from Andy Furniss adf.lists@gmail.com --- Created attachment 121541 --> https://bugs.freedesktop.org/attachment.cgi?id=121541&action=edit compute shaders .bz2
https://bugs.freedesktop.org/show_bug.cgi?id=94012
Andy Furniss adf.lists@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|NEW |RESOLVED
--- Comment #2 from Andy Furniss adf.lists@gmail.com --- fixed by llvm commit
commit d3adac51fcce66e8c79b77299fef9e5f6c4c646e Author: Tom Stellard thomas.stellard@amd.com Date: Wed Mar 30 16:35:09 2016 +0000
AMDGPU/SI: Enable lanemask tracking in misched
Summary: This results in higher register usage, but should make it easier for the compiler to hide latency.
This pass is a prerequisite for some more scheduler improvements, and I think the increase register usage with this patch is acceptable, because when combined with the scheduler improvements, the total register usage will decrease.
shader-db stats:
2382 shaders in 478 tests Totals: SGPRS: 48672 -> 49088 (0.85 %) VGPRS: 34148 -> 34847 (2.05 %) Code Size: 1285816 -> 1289128 (0.26 %) bytes LDS: 28 -> 28 (0.00 %) blocks Scratch: 492544 -> 573440 (16.42 %) bytes per wave Max Waves: 6856 -> 6846 (-0.15 %) Wait states: 0 -> 0 (0.00 %)
Depends on D18451
Reviewers: nhaehnle, arsenm
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D18452
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264876 91177308-0d34-0410-b5e6-96231b3b80d8
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