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Open-source OpenGL on the Raspberry Pi
--client
lca
--show
lca_2015
--room OGGB4 9426 --force
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Marks
Author(s):
Eric Anholt
Location
OGGB4
Date
jan Fri 16
Days Raw Files
Start
11:35
First Raw Start
11:34
Duration
0:45:00
Offset
0:00:14
End
12:20
Last Raw End
12:30
Chapters
00:00
Total cuts_time
46 min.
http://lca2015.linux.org.au/schedule/30256/view_talk
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This talk will describe the state of Mesa and kernel driver development for the Broadcom VC4 graphics chipset present in the Raspberry Pi. The specs for this chipset were released in February, and I started development on the driver in June. It's a GLES2-only part, which is significantly simpler than most of the hardware that Mesa supports, but that also brings its own challenges for building a complete Linux desktop experience, since it doesn't support some of the primitives, texture formats, and shader instructions we've always had available. In addition, the hardware sits directly on main memory without an MMU in between, so command and shader validation is required in order to prevent privilege escalation. I'll discuss these and other challenges faced and the workarounds I've found.
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2015-01-16/11_34_46.dv
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