[Bug 40221] NI / Cayman: Frequent pixmap corruption on >=3.0 kernels

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=40221

--- Comment #16 from Alex Deucher <agd5f at yahoo.com> 2011-08-22 10:57:31 PDT ---
Created an attachment (id=50461)
 View: https://bugs.freedesktop.org/attachment.cgi?id=50461
 Review: https://bugs.freedesktop.org/review?bug=40221&attachment=50461

possible fix

Most likely, the fix is to find out what state registers the 3D driver is
emitting that are not getting properly re-emitted in the drm blit code.  The
attached patch may help.  If not, basically compare the registers emitted in
cayman_default_state[] in cayman_blit_shaders.c in the drm with the
cayman_context_reg_list[] in evergreen_hw_context.c in mesa and see what's
different.

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