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| author | Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> | 2009-03-06 02:54:09 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-13 16:07:19 +1100 |
| commit | f507cd22035fdadd5dbb476dd05e9e7ee21c3b84 (patch) | |
| tree | 6d152e75c9ae1ba59349c969ae4b96b1e9f61304 /arch/powerpc/platforms | |
| parent | 9ead64974b05501bbac0d63a47c99fa786d064ba (diff) | |
| download | linux-f507cd22035fdadd5dbb476dd05e9e7ee21c3b84.tar.gz linux-f507cd22035fdadd5dbb476dd05e9e7ee21c3b84.tar.bz2 linux-f507cd22035fdadd5dbb476dd05e9e7ee21c3b84.zip | |
ps3/block: Replace mtd/ps3vram by block/ps3vram
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.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/ps3/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig index 920cf7a454b1..740ef56a1550 100644 --- a/arch/powerpc/platforms/ps3/Kconfig +++ b/arch/powerpc/platforms/ps3/Kconfig @@ -128,6 +128,13 @@ config PS3_FLASH be disabled on the kernel command line using "ps3flash=off", to not allocate this fixed buffer. +config PS3_VRAM + tristate "PS3 Video RAM Storage Driver" + depends on FB_PS3=y && BLOCK && m + help + This driver allows you to use excess PS3 video RAM as volatile + storage or system swap. + config PS3_LPM tristate "PS3 Logical Performance Monitor support" depends on PPC_PS3 |