[Bug 107223] [GEN9+] 50% perf drop in SynMark Fill* tests (E2E RBC gets disabled?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107223

Jason Ekstrand <jason at jlekstrand.net> changed:

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

--- Comment #18 from Jason Ekstrand <jason at jlekstrand.net> ---
Fixed by the following commit in master:

commit d9cf4308ceea3762c1aab48f9c48e12a72162b5a (public/master)
Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Tue Aug 28 15:25:23 2018 -0500

    i965/screen: Allow modifiers on sRGB formats

    This effectively reverts a26693493570a9d0f0fba1be617e01ee7bfff4db which
    was a misguided attempt at protecting intel_query_dma_buf_modifiers from
    invalid formats.  Unfortunately, in some internal EGL cases, we can get
    an SRGB format validly in this function.  Rejecting such formats caused
    us to not allow CCS in some cases where we should have been allowing it.
    This regressed the performance of some SynMark tests as well as GfxBench
    ALU2, Tessellation and Manhattan 3.0 tests

    There's some question of whether or not we really should be using SRGB
    "fourcc" formats that aren't actually in drm_foucc.h but there's not
    much harm in allowing them through here.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107223
    Fixes: a26693493570 "i965/screen: Return false for unsupported..."
    Tested-By: Eero Tamminen <eero.t.tamminen at intel.com>
    Reviewed-by: Eric Engestrom <eric.engestrom at intel.com>

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