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mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD

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Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD
device suitable for storage or swap.  Fast data transfer is achieved
using a local cache in system RAM and DMA transfers via the GPU.

Signed-off-by: Vivien Chappelier <vivien.chappelier@free.fr>
Signed-off-by: Jim Paris <jim@jtan.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Jim Paris
2009-01-06 11:32:10 +00:00
committed by Benjamin Herrenschmidt
parent d2b4397bf8
commit cffb4add03
6 changed files with 828 additions and 0 deletions
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7
drivers/mtd/devices/Kconfig
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@@ -120,6 +120,13 @@ config MTD_PHRAM
doesn't have access to, memory beyond the mem=xxx limit, nvram,
memory on the video card, etc...
config MTD_PS3VRAM
tristate "PS3 video RAM"
depends on FB_PS3
help
This driver allows you to use excess PS3 video RAM as volatile
storage or system swap.
config MTD_LART
tristate "28F160xx flash driver for LART"
depends on SA1100_LART