[Bug 101484] [bisected, SI] Steam fails to render content

* [Bug 101484] [bisected, SI] Steam fails to render content
@ 2017-06-17 16:02 bugzilla-daemon
  2017-06-19 23:48 ` bugzilla-daemon
                   ` (17 more replies)
  0 siblings, 18 replies; 19+ messages in thread
From: bugzilla-daemon @ 2017-06-17 16:02 UTC (permalink / raw)
  To: dri-devel

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https://bugs.freedesktop.org/show_bug.cgi?id=101484

            Bug ID: 101484
           Summary: [bisected, SI] Steam fails to render content
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: gr.muench@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 132023
  --> https://bugs.freedesktop.org/attachment.cgi?id=132023&action=edit
Steam main window

Steam is no longer usable with mesa git. I suspect this is SI (Radeon HD 7970)
specific though. Confirmed bad commit by reverting it. 

2b8b9a56efc24cc0f27469bf1532c288cdca2076 is the first bad commit
commit 2b8b9a56efc24cc0f27469bf1532c288cdca2076
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Mon May 29 00:40:39 2017 +0200

    radeonsi: move PSIZE and CLIPDIST unique IO indices after GENERIC

    Heaven LDS usage for LS+HS is below. The masks are "outputs_written"
    for LS and HS. Note that 32K is the maximum size.

    Before:
      heaven_x64: ls=1f1 tcs=1f1, lds=32K
      heaven_x64: ls=31 tcs=31, lds=24K
      heaven_x64: ls=71 tcs=71, lds=28K

    After:
      heaven_x64: ls=3f tcs=3f, lds=24K
      heaven_x64: ls=7 tcs=7, lds=13K
      heaven_x64: ls=f tcs=f, lds=17K

    All other apps have a similar decrease in LDS usage, because
    the "outputs_written" masks are similar. Also, most apps don't write
    POSITION in these shader stages, so there is room for improvement.
    (tight per-component input/output packing might help even more)

    It's unknown whether this improves performance.

    Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
    Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
    Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

:040000 040000 53bea508d363add63bb60fe4d7d776a16ef260c7
b654c367d8856228ec2059a2c3f42c5db2e36119 M      src

git bisect log
git bisect start
# bad: [1f958c1337290b4062a77f79fc101bb9f4bdf515] radeonsi: include ac_binary.h
for struct ac_shader_binary
git bisect bad 1f958c1337290b4062a77f79fc101bb9f4bdf515
# good: [bec1c13be2154dfb20baa4fbb33b1560a4ef1910] Android: Drop linking libgcc
git bisect good bec1c13be2154dfb20baa4fbb33b1560a4ef1910
# good: [fe14a9a50140d7b2e25052823efa671bf8d63d71] i965: Drop duplicate shadow
variable.
git bisect good fe14a9a50140d7b2e25052823efa671bf8d63d71
# bad: [978e6876f1cd8ccc8850a5665e9619a3e29b731e] etnaviv: flush resource when
binding as sampler view
git bisect bad 978e6876f1cd8ccc8850a5665e9619a3e29b731e
# good: [ee38dfe9a5525375012d1c6681e7c39c15ac3049] mesa: make
_mesa_scissor_bounding_box() static
git bisect good ee38dfe9a5525375012d1c6681e7c39c15ac3049
# good: [9d3f177e4b1ecd5e6ac4673e1ac8c72df9e159eb] dri: Optionally turn off a
couple of GLX extensions based on driconf options
git bisect good 9d3f177e4b1ecd5e6ac4673e1ac8c72df9e159eb
# bad: [97f6f411db9b16ebc7c4bebaf26513c185c8f550] i965/surface_state: Images
can't handle CCS at all
git bisect bad 97f6f411db9b16ebc7c4bebaf26513c185c8f550
# bad: [9cb42ae997054f52be2e99764199e00eb28056eb] util: Port nir_array
functionality to u_dynarray
git bisect bad 9cb42ae997054f52be2e99764199e00eb28056eb
# bad: [e9409c86e7b076801626474dfa5a9151da078a73] radeonsi: remove 8 bytes from
si_shader_key
git bisect bad e9409c86e7b076801626474dfa5a9151da078a73
# good: [1887faf73b379f28eb6c73bdb790dbcc97213b3a] svga: Allow format
differences in 16-bit RGBA surface sharing
git bisect good 1887faf73b379f28eb6c73bdb790dbcc97213b3a
# good: [df4d6003dc75395f8ded57fdf59046f0d008eea3] svga: Fix imported surface
view creation
git bisect good df4d6003dc75395f8ded57fdf59046f0d008eea3
# bad: [2b8b9a56efc24cc0f27469bf1532c288cdca2076] radeonsi: move PSIZE and
CLIPDIST unique IO indices after GENERIC
git bisect bad 2b8b9a56efc24cc0f27469bf1532c288cdca2076
# good: [2c4ec3f93fcab3fddcbe132200b210e7def1facc] svga: Always set the alpha
value to 1 when sampling using an XRGB view
git bisect good 2c4ec3f93fcab3fddcbe132200b210e7def1facc
# first bad commit: [2b8b9a56efc24cc0f27469bf1532c288cdca2076] radeonsi: move
PSIZE and CLIPDIST unique IO indices after GENERIC

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