[Bug 102562] [BAT][GDG] Many assertions hit hinting that writing to the memory fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102562

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 90cad095eeaa43711d60066096cddaf0d3b58bf6
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Sep 6 16:28:59 2017 +0100

    drm/i915: Disable MI_STORE_DATA_IMM for i915g/i915gm

    The early gen3 machines (i915g/Grantsdale and i915gm/Alviso) share a lot
    of characteristics in their MI/GTT blocks with gen2, and in particular
    can only use physical addresses in MI_STORE_DATA_IMM. This makes it
    incompatible with our usage, so include those two machines in the
    blacklist to prevent usage.

    v2: Make it easy for gcc and rewrite it as a switch to save some space.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com> #v1
    Link:
https://patchwork.freedesktop.org/patch/msgid/20170906152859.5304-1-chris@chris-wilson.co.uk

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