[haiku-commits] Re: haiku: hrev44689 - src/add-ons/kernel/busses/usb
- From: Jérôme Duval <korli@xxxxxxxxxxxxxxxx>
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Tue, 16 Oct 2012 16:28:36 +0200
Hi Ryan,
2012/10/9 <korli@xxxxxxxxxxxxxxxx>:
> hrev44689 adds 1 changeset to branch 'master'
> old head: c530d46cca3cb9bde36e243e634796eb2e17a23a
> new head: 3b98be3cc44741c04fefddc14d7b34a7735468a2
>
> ----------------------------------------------------------------------------
>
> 3b98be3: USB OHCI: Fix ownership handover from SMM to OS.
>
> * Disabling all interrupts prior to ownership handover from SMM to OS
> can prevent propper OHCI and PS/2 functionality as described in
> #8987 and #8984. In that case SMM does not respond to the ownership
> change request. On the other hand not disabling the interrupts can
> lead to interrupt storms (discussed in #8085) since no interrupt
> handler is installed at that moment. As suggested by mmlr this patch
> attempts to address both issues by keeping the ownership change
> request interrupt enabled.
>
> * Removed an unnecessary reset upon non-responding SMM for now,
> since we reset a few lines later anyway and added TODOs respectively.
> That should safe a bit boot time.
>
> Signed-off-by: Michael Lotz <mmlr@xxxxxxxx>
>
> [ Jürgen Wall <fakeEmail@xxxxxxxxxxxxx> ]
+alpha4 see #8987
Bye,
Jérôme
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