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authorKeith Packard <keithp@keithp.com>2008-06-24 13:39:25 -0700
committerKeith Packard <keithp@keithp.com>2008-06-24 13:39:25 -0700
commitd250a55fc6a726a8bfaf4f871eeb09c895a9ba51 (patch)
tree1174d9bc61c6a0b3f0d587a4ae536e9cecbabe85 /README
parente36da6a133328a4cf9c98d9347c87dc3c3a12d16 (diff)
[intel] Get vblank pipe from irq_mask_reg instead of hardware enable reg
With the interrupt enable/disable using only the mask register, it was wrong to use the enable register to detect which pipes had vblank detection turned on. Also, as we keep a local copy of the mask register around, and MSI machines smack the hardware during the interrupt handler, it is more efficient and more correct to use the local copy.
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