[Bug 103697] [regression] shared memory size 64k -> 32k?

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Nov 12 11:30:24 UTC 2017


            Bug ID: 103697
           Summary: [regression] shared memory size 64k -> 32k?
           Product: Mesa
           Version: 17.3
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: glsl-compiler
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: oliver.heid at h-next.de
        QA Contact: intel-3d-bugs at lists.freedesktop.org

All mesa-17.3.0-rcX release candidates balk at compiling compute shaders which
allocate more than 32kB shared memory:
    error: Too much shared memory used (65536/32768)
This occurs on Radeon RX 480 dGPU and on FX-8800P APU, both with 64kB LDS
(radeonsi driver).
On that hardware all previous versions including mesa-17.2.5 allow to compile
and run shaders with up to 64kB shared memory.

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