[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

            Bug ID: 94025
           Summary: [bisected] r600_texture.c:562:
                    r600_texture_get_htile_size: Assertion `0' failed
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: alexandre.f.demers@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 121557
  --> https://bugs.freedesktop.org/attachment.cgi?id=121557&action=edit
backtrace

Since yesterday night, I've been unable to get a window manage running (see
attached backtrace). After bisecting Mesa (was the only thing recompiled), I
found out that the following commit was the culprit. Any application being
launched while bisecting from and after that commit ends up with a
"r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed" error.

294ec530c9829aead97487b1feb06361ef97cc2d is the first bad commit
commit 294ec530c9829aead97487b1feb06361ef97cc2d
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Sat Jan 30 01:52:58 2016 +0100

    gallium/radeon: just get num_tile_pipes from the winsys

    Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

:040000 040000 71cb2da01a5912443f2ca74f97e46533f50f50d8
964978b8372e95f18eb09db4158b032bf25611fb M    src

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

--- Comment #1 from Alexandre Demers <alexandre.f.demers@gmail.com> ---
I added a line to output the value of "num_pipes" when it can't be matched to
the defined values in the switch:
fprintf(stderr, "Driver was unable to determine num_pipes (value = %i)\n",
num_pipes);

I ended up outputting "Driver was unable to determine num_pipes (value = 12)",
which is not coverded in the switch... Expected?

In commit 294ec530, r600_get_gb_tiling_config() was removed. num_pipes was
defined there and a comment was telling:
"/* Convert Sea Islands register values GB_ADDR_CFG and MC_ADDR_CFG
 * into GB_TILING_CONFIG register which is only present on R600-R700. */"

I'm using and R9 290X, which is a Sea Islands, covered by this comment.

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

--- Comment #2 from Alexandre Demers <alexandre.f.demers@gmail.com> ---
(In reply to Alexandre Demers from comment #1)
> I'm using and R9 290X, which is a Sea Islands, covered by this comment.

I meant R9 280X (Tahiti family, thus Southern Islands). So, was it included in
the removed r600_get_gb_tiling_config()? It seems so, but then the comment
would have been slightly wrong.

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

--- Comment #3 from Alexandre Demers <alexandre.f.demers@gmail.com> ---
With the code prior to the bad commit, num_pipes was defined as 8 (while now it
is 12, thus hitting default and asserting)...

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

--- Comment #4 from Nick Sarnie <commendsarnex@gmail.com> ---
Likely duplicate of https://bugs.freedesktop.org/show_bug.cgi?id=94019

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

Alexandre Demers <alexandre.f.demers@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=94019

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[Bug 94025] [bisected] r600_texture.c:562: r600_texture_get_htile_size: Assertion `0' failed

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https://bugs.freedesktop.org/show_bug.cgi?id=94025

Alexandre Demers <alexandre.f.demers@gmail.com> changed:

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

--- Comment #5 from Alexandre Demers <alexandre.f.demers@gmail.com> ---


*** This bug has been marked as a duplicate of bug 94019 ***

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