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author	Marek Olšák <maraeo@gmail.com>
	Thu, 17 Dec 2009 05:02:28 +0000 (06:02 +0100)
committer	Dave Airlie <airlied@redhat.com>
	Wed, 23 Dec 2009 01:14:04 +0000 (11:14 +1000)
commit	46c64d4bfa01cda7d58c514164f8b127ab6741b7
tree	92f3439c7b761d199714cb84bf09a937582b0c6e	tree \| snapshot (tar.gz zip)
parent	5ea597f3764880ab3a67fe2246218634a8c12778	commit \| diff

drm/radeon/kms: allow rendering while no colorbuffer is set on r300

Because hardware cannot disable all colorbuffers directly to do depth-only
rendering, a user should:
- disable reading from a colorbuffer in blending
- disable fastfill
- set the color channel mask to 0 to prevent writing to a colorbuffer

Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/r100.c		diff \| blob \| blame \| history
drivers/gpu/drm/radeon/r100_track.h		diff \| blob \| blame \| history
drivers/gpu/drm/radeon/r300.c		diff \| blob \| blame \| history

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