drm/i915: Call io_schedule() whilst whilsting for the GPU · 5035c275af - Gogs

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

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>

Chris Wilson 11 years ago

parent

967ad7f148

commit

5035c275af

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
drivers/gpu/drm/i915/i915_gem.c
							 
								View File
							
				@@ -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;