From: Yinghai Lu <yinghai@kernel.org>
To: David Miller <davem@davemloft.net>
Cc: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [RFC PATCH 6/6] sparc64: use early_res and nobootmem
Date: Wed, 10 Mar 2010 15:01:41 -0800 [thread overview]
Message-ID: <4B9824D5.8090906@kernel.org> (raw)
In-Reply-To: <20100310.143602.266086944.davem@davemloft.net>
On 03/10/2010 02:36 PM, David Miller wrote:
> From: Yinghai Lu <yinghai@kernel.org>
> Date: Wed, 10 Mar 2010 14:31:25 -0800
>
>> they are array based.
>>
>> 1. memmap is not changed after get it from firmware, <could be modified via mem= or memmap=>
>> 2. early_res at first is static array, later it will be relocated to another position if the array is not big enough.
>
> LMB could do this too with minor modifications.
>
> Simply make the lmb.memory and lmb.reserved be pointers, and initially
> they point into the static array(s).
>
> Later the pointers can be repositioned to point to dynamically
> allocated memory.
>
> So please, for the third time, please show me how LMB with some minor
> modifications is not able to satisfy your needs.
you could do it,
need to duplicate some functions from early_res.c and fw_memmap.c
esp __check_and_double_early_res, get_free_all_memory_range
YH
next prev parent reply other threads:[~2010-03-10 23:03 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-10 21:24 [PATCH -v2 0/6] early_res: fw_memmap.c Yinghai Lu
2010-03-10 21:24 ` [PATCH 1/4] x86: add get_centaur_ram_top Yinghai Lu
2010-03-10 21:24 ` [PATCH 2/4] x86: make e820 to be static Yinghai Lu
2010-03-10 21:24 ` [PATCH 3/4] x86: use wake_system_ram_range instead of e820_any_mapped in agp path Yinghai Lu
2010-03-10 21:24 ` [PATCH 4/4] x86: make e820 to be initdata Yinghai Lu
2010-03-10 21:24 ` [PATCH 5/6] early_res: seperate common memmap func from e820.c to fw_memmap.c Yinghai Lu
2010-03-10 21:50 ` Russell King
2010-03-10 21:55 ` David Miller
2010-03-10 22:05 ` Yinghai Lu
2010-03-10 22:05 ` Yinghai Lu
2010-03-10 23:46 ` Paul Mackerras
2010-03-10 23:59 ` Yinghai Lu
2010-03-10 21:24 ` [RFC PATCH 6/6] sparc64: use early_res and nobootmem Yinghai Lu
2010-03-10 21:30 ` David Miller
2010-03-10 21:33 ` David Miller
2010-03-10 21:34 ` Yinghai Lu
2010-03-10 21:36 ` David Miller
2010-03-10 22:10 ` Yinghai Lu
2010-03-10 22:17 ` David Miller
2010-03-10 22:31 ` Yinghai Lu
2010-03-10 22:36 ` David Miller
2010-03-10 23:01 ` Yinghai Lu [this message]
2010-03-10 23:47 ` Benjamin Herrenschmidt
2010-03-11 0:02 ` Yinghai Lu
2010-03-11 3:59 ` Paul Mundt
2010-03-10 22:04 ` David Miller
2010-03-10 22:20 ` Yinghai Lu
2010-03-10 22:49 ` David Miller
2010-03-10 23:05 ` Yinghai Lu
2010-03-10 23:44 ` Benjamin Herrenschmidt
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