Daniel Vetter 818f2a3cc3 drm/i915: revert pageflip/mappable related abi breakage ... In a00b10c360 "Only enforce fence limits inside the GTT" Chris Wilson implemented an optimization to only pin framebuffers as mappable for crtc_set_base (but not for pageflips). This breaks the abi, eg: A double buffering mesa client might leave the last framebuffer in unmappable space on close. A subsequent glReadPix by a frontbuffer rendering client then goes boom. My pretty anal mappable/unmappable consistency checking detected this, see https://bugs.freedesktop.org/show_bug.cgi?id=31286 Chris Wilson tried to fix this in 085ce26437 by pinning tiled framebuffers into mappable space. This a) renders the original optimization of not forcing framebuffers for pageflipping clients into mappable pointless because all our scanout buffers are tiled by default. b) doesn't solve the problem for untiled framebuffers. So kill this. Emperically it's no gain anyway because framebuffers are being reused by the ddx and hence there's no chance for them to get constanly bounced between mappable and unmappable. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>		2010-11-04 18:55:59 +00:00
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drm	drm/i915: revert pageflip/mappable related abi breakage	2010-11-04 18:55:59 +00:00
stub	gpu: Add Intel GMA500(Poulsbo) Stub Driver	2010-10-26 11:00:13 +10:00
vga	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
Makefile	gpu: Add Intel GMA500(Poulsbo) Stub Driver	2010-10-26 11:00:13 +10:00