Daniel Vetter 4bc9d43015 drm/i915: fix locking around ironlake_enable|disable_display_irq ... The haswell unclaimed register handling code forgot to take the spinlock. Since this is in the context of the non-rentrant interupt handler and we only have one interrupt handler it is sufficient to just grab the spinlock - we do not need to exclude any other interrupts from running on the same cpu. To prevent such gaffles in the future sprinkle assert_spin_locked over these functions. Unfornately this requires us to hold the spinlock in the ironlake postinstall hook where it is not strictly required: Currently that is run in single-threaded context and with userspace exlcuded from running concurrent ioctls. Add a comment explaining this. v2: ivb_can_enable_err_int also needs to be protected by the spinlock. To ensure this won't happen in the future again also sprinkle a spinlock assert in there. v3: Kill the 2nd call to ivb_can_enable_err_int I've accidentally left behind, spotted by Paulo. Cc: Paulo Zanoni <przanoni@gmail.com> Reviewed-by: Paulo Zanoni <przanoni@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2013-07-01 11:14:55 +02:00
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drm	drm/i915: fix locking around ironlake_enable|disable_display_irq	2013-07-01 11:14:55 +02:00
host1x	gpu: host1x: Rework CPU syncpoint increment	2013-06-22 12:43:55 +02:00
vga
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