[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

            Bug ID: 90510
           Summary: [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming
                    seems broken
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: sylvain.bertrand@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

This is a follow-up of the bug #90370.
source engine games produce tons of graphical glitches, unless
R600_DEBUG='switch_on_eop' is defined.
Tested with dota2/portal2. For portal2, the amount of glitches depends on
the level you choose.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #1 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
There are still some glitches, but they are rare.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #2 from Arek Ruśniak <arek.rusi@gmail.com> ---
Hi, I follow 
https://bugs.freedesktop.org/show_bug.cgi?id=90370
and 
https://bugs.freedesktop.org/show_bug.cgi?id=90484

R600_DEBUG='switch_on_eop' doesn't work for VERDE. Some glitches appear at
screen as before, maybe even worse. I've tested L4D2 only.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #3 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
all git from today, linux agd5f drm-fixes-4.1, llvm, mesa, xserver, drm,
xorg evdev, xorg ati.
dota2/portal2 still unplayable without R600_DEBUG='switch_on_eop' on
tahiti xt, that because of the graphic glitches.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #4 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
Thx to the mailing list, I caught the bug related to my issue:
#88978
verbatim llvm won't work properly for SI hardware at all till those
nasty bugs are solved (still some glitches left).

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #5 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
Based on work done from the mailing list, it seems the BO move may be related
to some of the remaining glitches.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #6 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
yesterday/today git for drm/llvm/mesa/xserver/xf86-video-ati, and today linux
drm-next-4.2:
still broken for tahiti xt

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

--- Comment #7 from Sylvain BERTRAND <sylvain.bertrand@gmail.com> ---
I close this bug to open more specific ones since it's still broken.

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[Bug 90510] [radeon][tahiti xt] IA_MULTI_VGT_PARAM programming seems broken

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https://bugs.freedesktop.org/show_bug.cgi?id=90510

Sylvain BERTRAND <sylvain.bertrand@gmail.com> changed:

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

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