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| author | Anton Blanchard | 2006-12-08 07:46:58 +0100 |
|---|---|---|
| committer | Paul Mackerras | 2006-12-09 01:39:05 +0100 |
| commit | 4c198557c6b45956a6f54b958fb97a15b02a6a3b (patch) | |
| tree | 91db4a694f01f4e4d29bcd7f3bc90c3ef311aebf /include/asm-powerpc/reg.h | |
| parent | [POWERPC] Fix mmap of PCI resource with hack for X (diff) | |
| download | kernel-qcow2-linux-4c198557c6b45956a6f54b958fb97a15b02a6a3b.tar.gz kernel-qcow2-linux-4c198557c6b45956a6f54b958fb97a15b02a6a3b.tar.xz kernel-qcow2-linux-4c198557c6b45956a6f54b958fb97a15b02a6a3b.zip | |
[POWERPC] Add DSCR SPR to sysfs
POWER6 adds a new SPR, the data stream control register (DSCR). It can
be used to adjust how agressive the prefetch mechanisms are.
Its possible we may want to context switch this, but for now just export
it to userspace via sysfs so we can adjust it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/reg.h')
| -rw-r--r-- | include/asm-powerpc/reg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index 6faae7b14d55..cacdecca610c 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -143,6 +143,7 @@ /* Special Purpose Registers (SPRNs)*/ #define SPRN_CTR 0x009 /* Count Register */ +#define SPRN_DSCR 0x11 #define SPRN_CTRLF 0x088 #define SPRN_CTRLT 0x098 #define CTRL_CT 0xc0000000 /* current thread */ |