[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93374

Michel Dänzer  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #5 from Michel Dänzer  ---
Fixed in LLVM 3.8 SVN.

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[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93374

--- Comment #4 from EoD  ---
After upgrading to current llvm 3.8-git (2921ff9ffcfd09db1c), the program ran
fine:

$ ./clpeak 

Platform: Clover
  Device: AMD TONGA (DRM 3.1.0, LLVM 3.8.0)
Driver version  : 11.2.0-devel (Linux x64)
Compute units   : 32
Clock frequency : 0 MHz

Global memory bandwidth (GBPS)
  float   : 100.53
  float2  : 112.67
  float4  : 105.17
  float8  : 104.72
  float16 : 69.72

Single-precision compute (GFLOPS)
  float   : 4006.34
  float2  : 4039.47
  float4  : 4030.48
  float8  : 4007.96
  float16 : 3973.85

Double-precision compute (GFLOPS)
  double   : 265.21
  double2  : 265.09
  double4  : 264.79
  double8  : 264.05
  double16 : 263.11

Integer compute (GIOPS)
  int   : 841.70
  int2  : 841.59
  int4  : 841.39
  int8  : 841.17
  int16 : 840.63

Transfer bandwidth (GBPS)
  enqueueWriteBuffer : 2.57
  enqueueReadBuffer  : 1.92
  enqueueMapBuffer(for read) : 1813.75
memcpy from mapped ptr   : 1.92
  enqueueUnmap(after write)  : 1545.40
memcpy to mapped ptr : 1.92

Kernel launch latency : 267.44 us

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[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93374

EoD  changed:

   What|Removed |Added

 CC||EoD at xmw.de

--- Comment #3 from EoD  ---
Is it possible to work around the lock?

I ran into the same issue, when I tried running clpeak (
https://github.com/krrishnarraj/clpeak ) on kernel 4.4.0-rc7 with current
mesa-git and an R9 380X.

kernel: amdgpu :01:00.0: IH ring buffer overflow (0x000C01D0, 0x0B40,
0x01E0)
kernel: amdgpu :01:00.0: GPU fault detected: 147 0x05f88802
kernel: amdgpu :01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0004009C
kernel: amdgpu :01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0A088002
kernel: VM fault (0x02, vmid 5) at page 262300, read from 'TC9' (0x54433900)
(136)

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[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

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https://bugs.freedesktop.org/show_bug.cgi?id=93374

--- Comment #2 from Vedran Miletić  ---
What is missing? Can it at least not crash?

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[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93374

--- Comment #1 from Michel Dänzer  ---
Basically, OpenCL support for VI isn't implemented yet.

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[Bug 93374] [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93374

Bug ID: 93374
   Summary: [radeonsi] Tonga (Radeon R9 380) hangs on running
hello world OpenCL program
   Product: Mesa
   Version: git
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: blocker
  Priority: medium
 Component: Drivers/Gallium/radeonsi
  Assignee: dri-devel at lists.freedesktop.org
  Reporter: rivanvx at gmail.com
QA Contact: dri-devel at lists.freedesktop.org

I'm running a hello world PyOpenCL program from here:
http://documen.tician.de/pyopencl/ I get the same issue with a different OpenCL
program, e.g. one from bug 93370.

The message shown in the console is the same as bug 93264, but without the VM
line:

amdgpu :01:00.0: GPU fault detected: 147 0x04588402
amdgpu :01:00.0:   VM_CONTEXT1_PROECTION_FAULT_ADDR   0x0004008B
amdgpu :01:00.0:   VM_CONTEXT1_PROECTION_FAULT_STATUS 0x08084002

The system is unresponsive and one has to do hard reset.

I tried reverting to one commit before c0a189c3792865257c1383f176e5401373ed2270
mentioned in the bug 93264, that is 26ddca196954ccfa697102b46118956ad616073a.
However, this did not fix the problem.

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