Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757430Ab2EXPvc (ORCPT ); Thu, 24 May 2012 11:51:32 -0400 Received: from na3sys009aog134.obsmtp.com ([74.125.149.83]:51658 "EHLO na3sys009aog134.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754064Ab2EXPva convert rfc822-to-8bit (ORCPT ); Thu, 24 May 2012 11:51:30 -0400 MIME-Version: 1.0 In-Reply-To: <20120524010237.GC11860@linux-sh.org> References: <1337227884.2066.9.camel@pgaikwad-dt2> <20120517062131.GA9305@gmail.com> <1337316517.22560.19.camel@pgaikwad-dt2> <20120518112104.GL20304@tbergstrom-lnx.Nvidia.com> <20120521084642.GV20304@tbergstrom-lnx.Nvidia.com> <4FBB5A72.2080101@codethink.co.uk> <20120522120851.GI8730@tbergstrom-lnx.Nvidia.com> <20120524010237.GC11860@linux-sh.org> From: "Turquette, Mike" Date: Thu, 24 May 2012 08:51:03 -0700 Message-ID: Subject: Re: Clock register in early init To: Paul Mundt Cc: Peter De Schrijver , Ben Dooks , Prashant Gaikwad , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1495 Lines: 34 On Wed, May 23, 2012 at 6:02 PM, Paul Mundt wrote: > On Tue, May 22, 2012 at 10:37:15AM -0700, Turquette, Mike wrote: >> On Tue, May 22, 2012 at 5:08 AM, Peter De Schrijver >> wrote: >> >> We had at-least that on the older Samsung parts and they where still >> >> growing. I would suggest that in a multi-kernel image situation the >> >> more data that can be discarded after init-time the better. >> >> >> >> Also, __initdata gets gathered into one place so there's no possibility >> >> of page fragmentation there. If you mean fragmentation of the memory >> >> map, then allocate the size of all the clocks you know of at init time >> >> in one go. >> >> >> > >> > That would work, except that clocks are needed before kmalloc is available. >> > >> >> Is static initialization the only way to solve this problem? ?What >> about using the bootmem allocator for early init clocks? >> > This is what sh does for its asm/clkdev.h __clkdev_alloc(), which is > really the only difference over the ARM version. It always seemed a bit > silly to me to make early allocation an arch-specific property. Good point. clkdev will probably need to be bootmem-able as well as the common clk stuff. Regards, Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/