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From: Yinghai Lu <yinghai@kernel.org>
To: Pekka Enberg <penberg@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
	"H. Peter Anvin" <hpa@zytor.com>, Jacob Shin <jacob.shin@amd.com>,
	Tejun Heo <tj@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH -v2 13/13] x86, 64bit: Map first 1M ram early before memblock_x86_fill()
Date: Mon, 3 Sep 2012 19:48:15 -0700	[thread overview]
Message-ID: <CAE9FiQVVKnEnFrxm1KDJeq5xgt3BXymhYF4w20qB3Kr2Sn5zUw@mail.gmail.com> (raw)
In-Reply-To: <CAE9FiQXHyS-ybeo5fBQwQzUtK2TTqPVkuf+6heZKrGn1wS77tQ@mail.gmail.com>

On Mon, Sep 3, 2012 at 12:18 AM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Sun, Sep 2, 2012 at 11:26 PM, Pekka Enberg <penberg@kernel.org> wrote:
>>
>> Yup, or move the globals together with the comment to arch/x86/mm/init.c.
>>
>> That said, max_pfn_high_mapped really ought to be kept together with
>> the other "pfn_mapped" globals and the comment should be updated.
>
> max_pfn_high_mapped is only for 64bit, and it is in init_64.c
>
> maybe later could have another patch to move max_pfn_mapped,
> max_low_pfn_mapped from
> kernel/setup.c to mm/init.c
>
> Please check attached updated patch.

oh,  I'm wrong.

this patch is not needed, until some day we could not need to do low
kernel mapping in head_64.S

Thanks

Yinghai

      reply	other threads:[~2012-09-04  2:48 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-02  7:46 [PATCH -v2 00/13] x86, mm: init_memory_mapping cleanup Yinghai Lu
2012-09-02  7:46 ` [PATCH -v2 01/13] x86, mm: Add global page_size_mask Yinghai Lu
2012-09-03  5:23   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 02/13] x86, mm: Split out split_mem_range Yinghai Lu
2012-09-03  5:23   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 03/13] x86, mm: Moving init_memory_mapping calling Yinghai Lu
2012-09-03  5:24   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 04/13] x86, mm: Revert back good_end setting for 64bit Yinghai Lu
2012-09-03  5:25   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 05/13] x86, mm: Find early page table only one time Yinghai Lu
2012-09-03  5:27   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 06/13] x86, mm: Separate out calculate_table_space_size() Yinghai Lu
2012-09-03  5:28   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 07/13] x86, mm: Move down two calculate_table_space_size down Yinghai Lu
2012-09-03  5:29   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 08/13] x86: if kernel .text .data .bss are not marked as E820_RAM, complain and fix Yinghai Lu
2012-09-03  5:31   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 09/13] x86: Fixup code testing if a pfn is direct mapped Yinghai Lu
2012-09-03  5:32   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 10/13] x86: Only direct map addresses that are marked as E820_RAM Yinghai Lu
2012-09-03  5:34   ` Pekka Enberg
2012-09-02  7:46 ` [PATCH -v2 11/13] x86/mm: calculate_table_space_size based on memory ranges that are being mapped Yinghai Lu
2012-09-03  5:36   ` Pekka Enberg
2012-09-03  6:21     ` Yinghai Lu
2012-09-02  7:46 ` [PATCH -v2 12/13] x86, mm: Use func pointer to table size calculation and mapping Yinghai Lu
2012-09-03  5:43   ` Pekka Enberg
2012-09-03  6:21     ` Yinghai Lu
2012-09-02  7:46 ` [PATCH -v2 13/13] x86, 64bit: Map first 1M ram early before memblock_x86_fill() Yinghai Lu
2012-09-03  5:50   ` Pekka Enberg
2012-09-03  6:17     ` Yinghai Lu
2012-09-03  6:26       ` Pekka Enberg
2012-09-03  7:18         ` Yinghai Lu
2012-09-04  2:48           ` Yinghai Lu [this message]

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