From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Development <linux-kernel@vger.kernel.org>,
Jim Paris <jim@jtan.com>,
Linux/PPC Development <linuxppc-dev@ozlabs.org>,
linux-mtd@lists.infradead.org, Jens Axboe <jens.axboe@oracle.com>,
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
Vivien Chappelier <vivien.chappelier@free.fr>,
David Woodhouse <dwmw2@infradead.org>,
Cell Broadband Engine OSS Development <cbe-oss-dev@ozlabs.org>
Subject: Re: [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram
Date: Mon, 9 Mar 2009 10:51:43 -0700 [thread overview]
Message-ID: <49B5572F.4010007@am.sony.com> (raw)
In-Reply-To: <alpine.LRH.2.00.0903061349010.16809@vixen.sonytel.be>
On 03/06/2009 04:54 AM, Geert Uytterhoeven wrote:
> Convert the PS3 Video RAM Storage Driver from an MTD driver to a plain block
> device driver.
>
> The ps3vram driver exposes unused video RAM on the PS3 as a block device
> suitable for storage or swap. Fast data transfer is achieved using a local
> cache in system RAM and DMA transfers via the GPU.
>
> The new driver is ca. 50% faster for reading, and ca. 10% for writing.
>
> arch/powerpc/platforms/ps3/Kconfig | 7 +
> drivers/block/Makefile | 1 +
> drivers/block/ps3vram.c | 865 ++++++++++++++++++++++++++++++++++++
> drivers/mtd/devices/Kconfig | 7 -
> drivers/mtd/devices/Makefile | 1 -
> drivers/mtd/devices/ps3vram.c | 768 --------------------------------
> 6 files changed, 873 insertions(+), 776 deletions(-)
> create mode 100644 drivers/block/ps3vram.c
> delete mode 100644 drivers/mtd/devices/ps3vram.c
Looks good, certainly an improvement.
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
WARNING: multiple messages have this Message-ID (diff)
From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
Jens Axboe <jens.axboe@oracle.com>, Jim Paris <jim@jtan.com>,
Vivien Chappelier <vivien.chappelier@free.fr>,
David Woodhouse <dwmw2@infradead.org>,
Arnd Bergmann <arnd@arndb.de>,
Linux/PPC Development <linuxppc-dev@ozlabs.org>,
Cell Broadband Engine OSS Development <cbe-oss-dev@ozlabs.org>,
Linux Kernel Development <linux-kernel@vger.kernel.org>,
linux-mtd@lists.infradead.org,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram
Date: Mon, 9 Mar 2009 10:51:43 -0700 [thread overview]
Message-ID: <49B5572F.4010007@am.sony.com> (raw)
In-Reply-To: <alpine.LRH.2.00.0903061349010.16809@vixen.sonytel.be>
On 03/06/2009 04:54 AM, Geert Uytterhoeven wrote:
> Convert the PS3 Video RAM Storage Driver from an MTD driver to a plain block
> device driver.
>
> The ps3vram driver exposes unused video RAM on the PS3 as a block device
> suitable for storage or swap. Fast data transfer is achieved using a local
> cache in system RAM and DMA transfers via the GPU.
>
> The new driver is ca. 50% faster for reading, and ca. 10% for writing.
>
> arch/powerpc/platforms/ps3/Kconfig | 7 +
> drivers/block/Makefile | 1 +
> drivers/block/ps3vram.c | 865 ++++++++++++++++++++++++++++++++++++
> drivers/mtd/devices/Kconfig | 7 -
> drivers/mtd/devices/Makefile | 1 -
> drivers/mtd/devices/ps3vram.c | 768 --------------------------------
> 6 files changed, 873 insertions(+), 776 deletions(-)
> create mode 100644 drivers/block/ps3vram.c
> delete mode 100644 drivers/mtd/devices/ps3vram.c
Looks good, certainly an improvement.
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
next prev parent reply other threads:[~2009-03-09 17:52 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-04 13:57 [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing video RAM as block device Geert Uytterhoeven
2009-03-04 13:57 ` Geert Uytterhoeven
2009-03-04 13:57 ` Geert Uytterhoeven
2009-03-04 23:27 ` Benjamin Herrenschmidt
2009-03-04 23:27 ` Benjamin Herrenschmidt
2009-03-04 23:27 ` Benjamin Herrenschmidt
2009-03-05 6:54 ` Jens Axboe
2009-03-05 6:54 ` Jens Axboe
2009-03-05 6:54 ` Jens Axboe
2009-03-06 12:54 ` [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram (was: Re: [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing video RAM as block device) Geert Uytterhoeven
2009-03-06 12:54 ` Geert Uytterhoeven
2009-03-06 12:54 ` Geert Uytterhoeven
2009-03-09 17:51 ` Geoff Levand [this message]
2009-03-09 17:51 ` [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram Geoff Levand
2009-03-05 0:21 ` [Cbe-oss-dev] [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing video RAM as block device Marcus G. Daniels
2009-03-05 0:21 ` Marcus G. Daniels
2009-03-05 0:21 ` Marcus G. Daniels
2009-03-05 7:17 ` Olaf Hering
2009-03-05 7:17 ` Olaf Hering
2009-03-05 7:17 ` Olaf Hering
2009-03-05 7:59 ` Geert Uytterhoeven
2009-03-05 7:59 ` Geert Uytterhoeven
2009-03-05 7:59 ` Geert Uytterhoeven
2009-03-05 10:24 ` Geert Uytterhoeven
2009-03-05 10:24 ` Geert Uytterhoeven
2009-03-05 10:24 ` Geert Uytterhoeven
2009-03-05 18:12 ` Olaf Hering
2009-03-05 18:12 ` Olaf Hering
2009-03-05 18:12 ` Olaf Hering
2009-03-05 8:37 ` Jens Axboe
2009-03-05 8:37 ` Jens Axboe
2009-03-05 8:37 ` Jens Axboe
2009-03-05 10:50 ` Geert Uytterhoeven
2009-03-05 10:50 ` Geert Uytterhoeven
2009-03-05 10:50 ` Geert Uytterhoeven
2009-03-05 11:09 ` Jens Axboe
2009-03-05 11:09 ` Jens Axboe
2009-03-05 11:09 ` Jens Axboe
2009-03-05 16:45 ` Geert Uytterhoeven
2009-03-05 16:45 ` Geert Uytterhoeven
2009-03-05 16:45 ` Geert Uytterhoeven
2009-03-06 7:46 ` Jens Axboe
2009-03-06 7:46 ` Jens Axboe
2009-03-06 7:46 ` Jens Axboe
2009-03-06 12:48 ` Geert Uytterhoeven
2009-03-06 12:48 ` Geert Uytterhoeven
2009-03-06 12:48 ` Geert Uytterhoeven
2009-03-06 12:58 ` Jens Axboe
2009-03-06 12:58 ` Jens Axboe
2009-03-06 12:58 ` Jens Axboe
2009-03-06 14:26 ` Geert Uytterhoeven
2009-03-06 14:26 ` Geert Uytterhoeven
2009-03-06 14:26 ` Geert Uytterhoeven
2009-03-06 19:03 ` Jens Axboe
2009-03-06 19:03 ` Jens Axboe
2009-03-06 19:03 ` Jens Axboe
2009-03-09 10:43 ` Geert Uytterhoeven
2009-03-09 10:43 ` Geert Uytterhoeven
2009-03-09 10:43 ` Geert Uytterhoeven
2009-03-09 10:48 ` Jens Axboe
2009-03-09 10:48 ` Jens Axboe
2009-03-09 10:48 ` Jens Axboe
2009-03-09 10:50 ` Jens Axboe
2009-03-09 10:50 ` Jens Axboe
2009-03-09 10:50 ` Jens Axboe
2009-03-09 10:52 ` Geert Uytterhoeven
2009-03-09 10:52 ` Geert Uytterhoeven
2009-03-09 10:52 ` Geert Uytterhoeven
2009-03-09 10:58 ` Jens Axboe
2009-03-09 10:58 ` Jens Axboe
2009-03-09 10:58 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2009-02-25 17:32 [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram Geert Uytterhoeven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49B5572F.4010007@am.sony.com \
--to=geoffrey.levand@am.sony.com \
--cc=Geert.Uytterhoeven@sonycom.com \
--cc=arnd@arndb.de \
--cc=benh@kernel.crashing.org \
--cc=cbe-oss-dev@ozlabs.org \
--cc=dwmw2@infradead.org \
--cc=jens.axboe@oracle.com \
--cc=jim@jtan.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=torvalds@linux-foundation.org \
--cc=vivien.chappelier@free.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.