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authorAnton Blanchard <anton@samba.org>2006-12-08 17:46:58 +1100
committerPaul Mackerras <paulus@samba.org>2006-12-09 11:39:05 +1100
commit4c198557c6b45956a6f54b958fb97a15b02a6a3b (patch)
tree91db4a694f01f4e4d29bcd7f3bc90c3ef311aebf /include/asm-powerpc/reg.h
parent396a1a5832ae28ce2c4150f98827873cbef554f5 (diff)
[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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index 6faae7b14d5..cacdecca610 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 */