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(Updated Sept. 19, 2016, 10:31 p.m.)

Review request for Default and Andreas Sandberg.


Removed useless conditional check as pointed out by Andreas.

Repository: gem5


Improve PL011 console interactivity

Diffs (updated)

  src/dev/arm/pl011.cc d726d0cea027 

Diff: http://reviews.gem5.org/r/3623/diff/


We are operating in "register mode" (not FIFO) which means if we clear an 
interrupt and have more data available, we need to re-raise the interrupt 
again.  Add two more cases where this is needed.

With this the interactivity on FreeBSD went to usable.  Before this after a 
certain event, it could take up to 15(?) additional charatcers to get 
previously pasted command lines echoed and executed.

I have a possible report about similar behaviour from people at ARM on Linux 
(uncofirmed) and I am putting the patch up so they can test.


Bjoern A. Zeeb

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