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authorChris Wilson <chris@chris-wilson.co.uk>2010-02-09 08:32:54 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2010-02-09 08:37:37 +0000
commitfdcde592c2c48e143251672cf2e82debb07606bd (patch)
tree81ccd0f473afae3fb6f4468a616cf7f7ed3869f1 /tests/kmstest
parente4a519635f75bde38aeb5b09f2ff4efbf73453e9 (diff)
intel: Account for potential pinned buffers hogging fences
As the kernel reports the total number of fences, we must guess how many fences are likely to be pinned. In the typical system these will be only used by the scanout buffers, of which there may be one per pipe, and any number of manually pinned fenced buffers. So take a conservative guess and reserve two fences for use by the system. Note this reduces the number of fences to 3 for i915 and prior. Reference: http://bugs.freedesktop.org/show_bug.cgi?id=25911 The latest intel driver 2.10.0 causes kernel oops and system hangs Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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