From: Ingo Molnar <mingo@elte.hu>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
David Miller <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
benh@kernel.crashing.org, hpa@zytor.com,
jbarnes@virtuousgeek.org, ebiederm@xmission.com,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH 06/20] early_res: seperate common memmap func from e820.c to fw_memmap.cy
Date: Tue, 23 Mar 2010 10:48:34 +0100 [thread overview]
Message-ID: <20100323094834.GB4576@elte.hu> (raw)
In-Reply-To: <4BA883C0.2070102@kernel.org>
* Yinghai Lu <yinghai@kernel.org> wrote:
> > 2)
> >
> > I think we also need to concentrate the changes back into LMB:
>
> yes. put them in kernel/early_res.c and move them to lmb.c if lmb gugs are
> happy with the change.
Yes, they seemed OK with changing it to accomodate x86, as long as current
behavior stays compatible and as long as the changes are squeaky-clean.
Both of which are highly reasonable expectations ;-)
> > early_res.h will go away as well and all the new APIs will be in lmb.h.
>
> current have three levels
> a. old lmb users
> b. x86 with bootmem
> c. x86 with no-bootmem
>
> some functions later could be moved to new bootmem.c
I think we want to work towards the end result where we dont have bootmem.c
anymore. I.e. a modern LMB architecture should generally not make use of
bootmem at all.
We could do that switch on x86 straight away, and make CONFIG_NO_BOOTMEM a
default-y option, hm? We could also hide the interactivity behind
CONFIG_DEBUG_VM or so - and eliminate it altogether later on.
We should also switch around the flag and turn it into CONFIG_BOOTMEM.
Hm?
Ingo
next prev parent reply other threads:[~2010-03-23 9:48 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-21 7:13 [PATCH 00/20] x86: early_res and irq_desc Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 01/20] x86: add find_e820_area_node Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 02/20] x86: add get_centaur_ram_top Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 03/20] x86: make e820 to be static Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 04/20] x86: use wake_system_ram_range instead of e820_any_mapped in agp path Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 05/20] x86: make e820 to be initdata Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 06/20] early_res: seperate common memmap func from e820.c to fw_memmap.c Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-22 2:37 ` Benjamin Herrenschmidt
2010-03-22 2:46 ` Questions about SMP bootup control Zhu, Yijun (NSN - CN/Beijing)
2010-03-22 2:46 ` Zhu, Yijun (NSN - CN/Beijing)
2010-03-22 3:29 ` Andi Kleen
2010-03-22 7:45 ` Zhu, Yijun (NSN - CN/Beijing)
2010-03-22 3:56 ` [PATCH 06/20] early_res: seperate common memmap func from e820.c to fw_memmap.c Yinghai Lu
2010-03-22 4:00 ` David Miller
2010-03-22 4:28 ` Yinghai Lu
2010-03-22 4:33 ` David Miller
2010-03-22 9:28 ` Ingo Molnar
2010-03-22 9:28 ` Ingo Molnar
2010-03-22 11:30 ` Paul Mackerras
2010-03-22 13:05 ` Ingo Molnar
2010-03-22 13:05 ` Ingo Molnar
2010-03-22 21:04 ` Benjamin Herrenschmidt
2010-03-22 21:20 ` Ingo Molnar
2010-03-22 21:52 ` Benjamin Herrenschmidt
2010-03-22 22:14 ` Yinghai Lu
2010-03-22 18:18 ` [PATCH 06/20] early_res: seperate common memmap func from e820.c to fw_memmap.cy Thomas Gleixner
2010-03-22 19:37 ` Ingo Molnar
2010-03-22 20:07 ` Yinghai Lu
2010-03-22 21:08 ` Benjamin Herrenschmidt
2010-03-22 22:09 ` Thomas Gleixner
2010-03-22 22:25 ` Yinghai Lu
2010-03-22 22:53 ` Thomas Gleixner
2010-03-22 23:41 ` Yinghai Lu
2010-03-23 0:45 ` Thomas Gleixner
2010-03-23 1:04 ` Yinghai Lu
2010-03-23 1:36 ` Thomas Gleixner
2010-03-23 6:01 ` Yinghai Lu
2010-03-23 8:02 ` Ingo Molnar
2010-03-23 9:02 ` Yinghai Lu
2010-03-23 9:48 ` Ingo Molnar [this message]
2010-03-24 4:29 ` Benjamin Herrenschmidt
2010-03-24 4:44 ` Benjamin Herrenschmidt
2010-03-24 5:54 ` Yinghai Lu
2010-03-24 7:43 ` Benjamin Herrenschmidt
2010-03-24 18:37 ` Yinghai Lu
2010-03-24 9:00 ` Ingo Molnar
2010-03-24 9:32 ` Benjamin Herrenschmidt
2010-03-24 4:24 ` Benjamin Herrenschmidt
2010-03-24 6:05 ` Yinghai Lu
2010-03-22 20:47 ` [PATCH 06/20] early_res: seperate common memmap func from e820.c to fw_memmap.c Benjamin Herrenschmidt
2010-03-22 20:57 ` Ingo Molnar
2010-03-22 21:54 ` Benjamin Herrenschmidt
2010-03-23 8:53 ` Geert Uytterhoeven
2010-03-23 11:16 ` Ingo Molnar
2010-03-24 4:50 ` Benjamin Herrenschmidt
2010-03-24 5:47 ` Kyle Moffett
2010-03-22 21:57 ` Paul Mackerras
2010-03-22 21:07 ` Benjamin Herrenschmidt
2010-03-22 21:07 ` Benjamin Herrenschmidt
2010-03-22 21:01 ` Benjamin Herrenschmidt
2010-03-22 5:12 ` Benjamin Herrenschmidt
2010-03-22 6:09 ` Yinghai Lu
2010-03-22 7:05 ` Eric W. Biederman
2010-03-21 7:13 ` [PATCH 07/20] irq: move some interrupt arch_* functions into struct irq_chip Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 08/20] x86: fix out of order of gsi - full Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 09/20] x86: set nr_irqs_gsi only in probe_nr_irqs_gsi Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 10/20] x86: kill smpboot_hooks.h Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 11/20] x86: use vector_desc instead of vector_irq Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 12/20] genericirq: change ack/mask in irq_chip to take irq_desc instead of irq -- x86 and core Yinghai Lu
2010-03-21 7:13 ` [PATCH 13/20] genericirq: change ack/mask in irq_chip to take irq_desc instead of irq -- other arch Yinghai Lu
2010-03-21 7:13 ` [PATCH 14/20] genericirq: add set_irq_desc_chip/data Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 15/20] x86/iommu/dmar: update iommu/inter_remapping to use desc Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 16/20] x86: use num_processors for possible cpus Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 17/20] x86: make 32bit apic flat to physflat switch like 64bit Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 18/20] x86: remove arch_probe_nr_irqs Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 19/20] x86/pci: ioh new version read all at same time Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-22 16:16 ` Jesse Barnes
2010-03-22 16:16 ` Jesse Barnes
2010-03-22 19:32 ` Yinghai Lu
2010-03-22 19:32 ` Yinghai Lu
2010-03-21 7:13 ` [PATCH 20/20] x86/pci: add mmconf range into e820 for when it is from MSR with amd faml0h Yinghai Lu
2010-03-21 7:13 ` Yinghai Lu
2010-03-22 2:35 ` [PATCH 00/20] x86: early_res and irq_desc Benjamin Herrenschmidt
2010-03-22 3:26 ` Yinghai Lu
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