linux-kernel - Re: Request (2nd) for unicore32 architecture codes to merge into linux-next

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Date:	Sun, 6 Feb 2011 23:06:13 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Guan Xuetao <guanxuetao@...c.pku.edu.cn>
cc:	sfr@...b.auug.org.au, Arnd Bergmann <arnd@...db.de>,
	gregkh@...e.de, jbarnes@...tuousgeek.org,
	dmitry.torokhov@...il.com, dtor@...l.ru,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-next@...r.kernel.org
Subject: Re: Request (2nd) for unicore32 architecture codes to merge into
 linux-next

On Sat, 22 Jan 2011, Guan Xuetao wrote:

> Hi, I want to merge unicore32 repo into linux-next tree, the
> position is (unicore32 branch):

Sorry for late reply.
 
>  arch/unicore32/kernel/time.c                  |  148 +++++

static struct clock_event_device ckevt_puv3_osmr0 ...
#ifdef CONFIG_ARCH_FPGA
        .shift          = 18, /* correct shift val: 16, but warn_on_slowpath */
#else
        .shift          = 30,
#endif

....
        ckevt_puv3_osmr0.mult =
                div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, ckevt_puv3_osmr0.shift);

Please use the function which calculates the optimizes mult/shift
values for you depending on the clock frequency.

clockevents_calc_mult_shift() is your friend.

>  arch/unicore32/kernel/irq.c                   |  426 +++++++++++++

Please convert your irq_chips to the new function pointers:

       .mask -> .irq_mask
       ...

The new functions replace the "unsigned int irq" argument with
"struct irq_data *d".

So conversion for your chips is simply

s/unsigned int irq/struct irq_data *d/

and 

s/irq/d->irq/ in the implementation.

Then your arch should select: GENERIC_HARDIRQS_NO_DEPRECATED

Otherwise I'm happy with your irq and time related patches.

Thanks,

	tglx
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