[Intel-gfx] Reminder to update documentation with the code

[Carl Worth]

I was just trolling through the commit log looking for items to add to
the release notes and found the nice, new debugging features as seen in
the commit below.

I've added a simple sentence to the release notes saying something like:

	New driver debugging options available in xorg.conf,
	(DebugFlushBatches, DebugFlushCaches, DebugWait).

and I'd like to just say "see the documentation for details", but
apparently the lovely documentation below currently exists only in our
commit log.

Let's all try to remember to update our documentation, (man/intel.man),
as we update the driver code.

Thanks,

-Carl

commit 3c0815abf28744e215bea286e71d935cd486955a
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 14 11:29:21 2009 +0100

    conf: Add debugging flush options
    
    Make the following options available via xorg.conf:
      Section "Driver"
        Option "DebugFlushBatches" "1" # Flush the batch buffer after every
                                       # single operation;
    
        Option "DebugFlushCaches" "1" # Include a MI_FLUSH at the end of every
                                      # batch buffer to force data to be
                                      # flushed out of cache and into memory
                                      # before the completion of the batch.
    
        Option "DebugWait" "1" # Wait for the completion of every batch buffer
                               # before continuing, i.e. perform synchronous
                               # rendering.
      EndSection
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>


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