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

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

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1202 bytes --]

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: bas@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

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2568 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

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

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 330 bytes --]

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

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

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1389 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

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

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 333 bytes --]

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

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

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1398 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

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

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 548 bytes --]

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

Timothy Arceri <t_arceri@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #3 from Timothy Arceri <t_arceri@yahoo.com.au> ---
These patches were committed. Closing as fixed.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2095 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel