From mboxrd@z Thu Jan  1 00:00:00 1970
From: dsaxena@plexity.net (Deepak Saxena)
Date: Fri, 28 Oct 2011 15:08:21 -0700
Subject: [PATCH 00/51] Remove inline arch_reset definitions from system.h
In-Reply-To: <1319813059-8914-1-git-send-email-will.deacon@arm.com>
References: <1319813059-8914-1-git-send-email-will.deacon@arm.com>
Message-ID: <20111028220821.GA27661@plexity.net>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Oct 28 2011, at 15:43, Will Deacon was caught saying:
> Well, looks like I finally made it and I reckon I've managed to preserve
> my sanity.
> 
> This patch series removes the inline arch_reset definitions from the
> mach/system.h files, which is currently a blocker for the single zImage
> work. Nicolas has some patches doing a similar thing for arch_idle. In
> cases where a new file has been introduced and it looks like arch_idle
> could co-exist in there, I've named the new file system.c but it will
> mean that Nicolas will need to rebase his stuff on top of this.
> 
> I think I've compile-tested this whenever I could identify the right
> defconfig, but my brain stopped working about 25% of the way through.
> 
> Thanks to Paul Walmsley for saving me from the OMAP changes.
> 
> Comments / suggestions / fixups welcome.

I like the idea, I'm wondering about having stuffing a pointer to 
an init function to assign the pointer into mach_desc? In the at91
case, we've got 7 board files assiging the same pointer. Instead
we could just have an at91_arch_reset_init() that only needs
to be in one .c file. 

Another idea is to just stuff the pointer to the machine's arch_reset
into the mach_desc and generic init code could read it. In the case 
of a some weird board version related quirk that can only be detected 
by some runtime register poking (i.e.  not via the DT machine 
compatability), we could update the pointer in machines' fixup() function.

~Deepak


-- 
"People think all we need to fix our predicament is a free source of
energy, but I think we need to change out behaviour. More energy would
just deplete the Earth's lifeblood faster." - Janine Benyius