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From: Milton Miller <miltonm@bga.com>
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: ppcdev <linuxppc-dev@ozlabs.org>
Subject: Re: [patch 1/6] ps3: Preallocate bootmem memory for the PS3 FLASH
Date: Mon, 18 Jun 2007 11:25:30 -0500	[thread overview]
Message-ID: <bc61eb97d01812aeccaff374fd1d775b@bga.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0706151529380.14899@pademelon.sonytel.be>

On Fri Jun 15 23:32:41 EST 2007, Geert Uytterhoeven wrote:
> On Fri, 15 Jun 2007, Benjamin Herrenschmidt wrote:
>> On Fri, 2007-06-15 at 13:39 +0200, Geert Uytterhoeven wrote:
>>> Preallocate 256 KiB of bootmem memory for the PS3 FLASH ROM storage 
>>> driver.
>>
>> I still very much dislike the #ifdef xxx_MODULE in main kernel code.
>
> Me too, but there's no other reliable way to allocate it after boot 
> up...
>
>> At the end of the day, is it realistic to ever use a PS3 without the
>> storage driver ? I would suggest just allocating those 
>> unconditionally.
>
> If you don't plan to (a) boot into GameOS or (b) update the kboot 
> kernel, then the answer is: yes, you can live without the FLASH ROM 
> driver, and save one promille of RAM.
>

In that case, why not make it an early_param, and only change the 
default based on the config varables?   It sounds like I might want to 
reclaim this memory even if I compiled in the driver.

Statement (a) is because one has to write the flag to say don't' boot 
OtherOS to go back to GameOS (or reset all defaults) I presume.

milton

  reply	other threads:[~2007-06-18 16:25 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-15 11:39 [patch 0/6] PS3 Storage Drivers for 2.6.23, take 2 Geert Uytterhoeven
2007-06-15 11:39 ` Geert Uytterhoeven
2007-06-15 11:39 ` Geert Uytterhoeven
2007-06-15 11:39 ` [patch 1/6] ps3: Preallocate bootmem memory for the PS3 FLASH ROM storage driver Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 13:27   ` Benjamin Herrenschmidt
2007-06-15 13:27     ` Benjamin Herrenschmidt
2007-06-15 13:32     ` Geert Uytterhoeven
2007-06-15 13:32       ` Geert Uytterhoeven
2007-06-18 16:25       ` Milton Miller [this message]
2007-06-19 11:36         ` [patch 1/6] ps3: Preallocate bootmem memory for the PS3 FLASH Geert Uytterhoeven
2007-06-15 11:39 ` [patch 2/6] ps3: Storage Driver Core Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39 ` [patch 3/6] PS3: Storage device registration routines Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39 ` [patch 4/6] ps3: Disk Storage Driver Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 14:35   ` David Woodhouse
2007-06-15 14:35     ` David Woodhouse
2007-06-15 14:41     ` Arnd Bergmann
2007-06-15 14:41       ` Arnd Bergmann
2007-06-15 14:41       ` Arnd Bergmann
2007-06-15 14:43     ` Geert Uytterhoeven
2007-06-15 16:15       ` Alan Cox
2007-06-15 16:15         ` Alan Cox
2007-06-15 18:05         ` Geert Uytterhoeven
2007-06-15 21:19         ` David Miller
2007-06-15 21:19           ` David Miller
2007-06-15 22:40           ` James Bottomley
2007-06-15 22:40             ` James Bottomley
2007-06-15 23:08             ` David Miller
2007-06-15 23:08               ` David Miller
2007-06-15 23:28               ` James Bottomley
2007-06-15 23:28                 ` James Bottomley
2007-06-15 23:37                 ` David Miller
2007-06-15 23:37                   ` David Miller
2007-06-19  5:56               ` Christoph Hellwig
2007-06-19  6:07                 ` David Miller
2007-06-19  8:15                   ` Christoph Hellwig
2007-06-19  8:15                     ` Christoph Hellwig
2007-06-15 23:11           ` Alan Cox
2007-06-15 23:11             ` Alan Cox
2007-06-16  6:21           ` Geert Uytterhoeven
2007-06-16  6:21             ` Geert Uytterhoeven
2007-06-19  5:53           ` Christoph Hellwig
2007-06-19  5:53             ` Christoph Hellwig
2007-06-19  6:03             ` David Miller
2007-06-19  6:03               ` David Miller
2007-06-19  7:06               ` Geert Uytterhoeven
2007-06-19  7:06                 ` Geert Uytterhoeven
2007-06-15 21:17       ` David Miller
2007-06-15 21:17         ` David Miller
2007-06-15 21:28         ` Jeff Garzik
2007-06-15 21:28           ` Jeff Garzik
2007-06-15 21:37           ` David Miller
2007-06-15 21:37             ` David Miller
2007-06-15 21:50         ` Jeff Garzik
2007-06-15 21:50           ` Jeff Garzik
2007-06-15 21:55           ` David Miller
2007-06-15 21:55             ` David Miller
2007-06-19  5:43   ` Christoph Hellwig
2007-06-19  5:43     ` Christoph Hellwig
2007-06-19 12:51     ` Geert Uytterhoeven
2007-06-19 12:51       ` Geert Uytterhoeven
2007-06-19 17:19       ` Christoph Hellwig
2007-06-19 17:19         ` Christoph Hellwig
2007-06-15 11:39 ` [patch 5/6] ps3: ROM " Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-18 16:30   ` Milton Miller
2007-06-19  5:44     ` Christoph Hellwig
2007-06-19 12:29     ` Geert Uytterhoeven
2007-06-20 12:16       ` Milton Miller
2007-06-19  5:51   ` Christoph Hellwig
2007-06-19  5:51     ` Christoph Hellwig
2007-06-15 11:39 ` [patch 6/6] ps3: FLASH " Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-15 11:39   ` Geert Uytterhoeven
2007-06-18 16:30   ` Milton Miller
2007-06-19 12:02     ` Geert Uytterhoeven

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