[Bug 105950] radeonsi: OpenCL not working correctly on a big endian machine

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105950

Timothy Arceri  changed:

   What|Removed |Added

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

--- Comment #3 from Timothy Arceri  ---
These patches were committed. Closing as fixed.

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[Bug 105950] radeonsi: OpenCL not working correctly on a big endian machine

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105950

--- Comment #2 from Bas Vermeulen  ---
Created attachment 138698
  --> https://bugs.freedesktop.org/attachment.cgi?id=138698=edit
Patch for dispatch_packet endianness fix

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[Bug 105950] radeonsi: OpenCL not working correctly on a big endian machine

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105950

--- Comment #1 from Bas Vermeulen  ---
Created attachment 138697
  --> https://bugs.freedesktop.org/attachment.cgi?id=138697=edit
Patch for si_vgt_param_key endian fix

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[Bug 105950] radeonsi: OpenCL not working correctly on a big endian machine

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105950

Bug ID: 105950
   Summary: radeonsi: OpenCL not working correctly on a big endian
machine
   Product: Mesa
   Version: 17.3
  Hardware: PowerPC
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: Drivers/Gallium/radeonsi
  Assignee: dri-devel@lists.freedesktop.org
  Reporter: b...@daedalean.ai
QA Contact: dri-devel@lists.freedesktop.org

Running any OpenCL program on a big endian machine using a radeonsi card fails.

- union si_vgt_param_key uses a bitfield shared with a 32 bit value. This
causes the index to be wrong on a big endian machine, and crashes any OpenCL
program with a segfault.
- si_setup_user_sgprs_co_v2 in si_compute.c fills a dispatch_packet struct with
values which are uploaded to the GPU. To ensure this works correctly, these
values need to be converted to little endian.

I'll send patches to the mesa-dev list for both these issues.

Bas Vermeulen

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