PERFORCE change 135517 for review

[Marcel Moolenaar]

On Feb 16, 2008, at 4:01 PM, Rafal Jaworowski wrote:

>> We always call into U-Boot when we're waiting, so interrupts should  
>> be
>> enabled when it's important. This is the case when we wait for time  
>> to
>> pass, a key press or a network packet. In all those cases we  
>> shouldn't
>> be running for extensive amounts of time with interrupts disabled, so
>> we shouldn't lose too much precision, keys or packets.
>>
>
> Well, the point is we would need to run with interrupts disabled  
> during all
> loader's code paths, so that interrups could be allowed only for the  
> duration
> of the syscall; not sure how this would serve. Anyway, let me know  
> your findings.
>
>> I'll play with this and see if that statement is true...
>>
>
> From the other end: I'll take a look at U-Boot exceptions handlers  
> macros for
> the prologue/epilogue and try to fix this down there. It shouldn't be
> difficult, but propagating the changes to their main line code will  
> take time...

Perfect: 2 people, 2 viewpoints, 2 angles, 1 short-term
workaround and 1 long-term solution. Can't have it any
better than this ;-)

-- 
Marcel Moolenaar
xcllnt at mac.com