On Mon, 10 Oct 2011 16:31:51 -0700, Kenneth Graunke <kenn...@whitecape.org> wrote: > Finding this bit in the documentation proved challenging. It wasn't in > the SEND instruction's message descriptor section, nor the data port > message descriptor section. It turns out to be part of the Render > Target Write message's control bits, and in the documentation is named > "Last Render Target Select". > > Shaders that use Multiple Render Targets should set this bit on the last > RT write, but not on any prior ones. > > The GPU does update the Pixel Scoreboard appropriately, but doesn't > document this bit as directly causing a scoreboard clear. > > Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
Back in my day, the docs called it the pixel scoreboard clear bit. Reviewed-by: Eric Anholt <e...@anholt.net>
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