linux-kernel - Re: [PATCH] ARM: hw_breakpoint: Clear breakpoints before enabling monitor mode

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Date:	Tue, 2 Oct 2012 10:13:01 +0100
From:	Will Deacon <will.deacon@....com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: hw_breakpoint: Clear breakpoints before enabling
 monitor mode

On Tue, Oct 02, 2012 at 01:34:28AM +0100, Stephen Boyd wrote:
> On 09/24/12 10:19, Will Deacon wrote:
> > Ok, I've pushed a bunch of patches to my hw-breakpoint branch (head commit
> > 55cb726797c7). I'll post them to the list after the merge window, but please
> > do take them for a spin if you get a chance.
> >
> 
> Forgot to reply here. Took them for a spin last week with that commit.
> No more boot hangs but I can't say much else beyond that. When you post
> to the list I'll add my tested-by.

Thanks Stephen. I've also got some patches for OS save/restore of the debug
registers using the various hardware locking and readout mechanisms, so that
debug state can be persisted across low-power states.

Do any of the Qualcomm chips (v7 as opposed to v7.1) implement the save/restore
registers?

Will
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