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: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
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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