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drm/i915: Call io_schedule() whilst whilsting for the GPU

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Since we are waiting upon IO completion, inform the kernel through use
of the io_schedule() call rather than the regular schedule(). This
should allow the kernel to make better decisions regarding scheduling
and power management.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2013-10-04 09:58:46 +01:00 committed by Daniel Vetter
parent 967ad7f148
commit 5035c275af
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/i915/i915_gem.c
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@ -1082,7 +1082,7 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno,
mod_timer(&timer, expire);
}
schedule();
io_schedule();
if (timeout)
timeout_jiffies = expire - jiffies;