menu "Cell Broadband Engine options"
depends on PPC_CELL
config SPU_FS
tristate "SPU file system"
default m
depends on PPC_CELL
select SPU_BASE
select MEMORY_HOTPLUG
help
The SPU file system is used to access Synergistic Processing
Units on machines implementing the Broadband Processor
Architecture.
config SPU_BASE
bool
default n
config CBE_RAS
bool "RAS features for bare metal Cell BE"
default y
endmenu-
Benjamin Herrenschmidt authored
This patch adds a new "psmap" file to spufs that allows mmap of all of the problem state mapping of SPEs. It is compatible with 64k pages. In addition, it removes mmap ability of individual files when using 64k pages, with the exception of signal1 and signal2 which will both map the entire 64k page holding both registers. It also removes CONFIG_SPUFS_MMAP as there is no point in not building mmap support in spufs. It goes along a separate patch to libspe implementing usage of that new file to access problem state registers. Another patch will follow up to fix races opened up by accessing the 'runcntl' register directly, which is made possible with this patch. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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