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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-02-08 16:42:51 +1100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-07 22:05:14 -0800
commitac171c46667c1cb2ee9e22312291df6ed78e1b6e (patch)
tree86ca722abc1ddceb0887b3ed6a195d77bb200dc2 /drivers/macintosh/windfarm_pid.h
parent746f956beb534ddf73da4346de81f2941c8573f8 (diff)
downloadlinux-ac171c46667c1cb2ee9e22312291df6ed78e1b6e.tar.bz2
[PATCH] powerpc: Thermal control for dual core G5s
This patch adds a windfarm module, windfarm_pm112, for the dual core G5s (both 2 and 4 core models), keeping the machine from getting into vacuum-cleaner mode ;) For proper credits, the patch was initially written by Paul Mackerras, and slightly reworked by me to add overtemp handling among others. The patch also removes the sysfs attributes from windfarm_pm81 and windfarm_pm91 and instead adds code to the windfarm core to automagically expose attributes for sensor & controls. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/macintosh/windfarm_pid.h')
-rw-r--r--drivers/macintosh/windfarm_pid.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/macintosh/windfarm_pid.h b/drivers/macintosh/windfarm_pid.h
index a364c2a2499c..bbccc22d42b8 100644
--- a/drivers/macintosh/windfarm_pid.h
+++ b/drivers/macintosh/windfarm_pid.h
@@ -72,6 +72,7 @@ struct wf_cpu_pid_state {
int index; /* index of current power */
int tindex; /* index of current temp */
s32 target; /* current target value */
+ s32 last_delta; /* last Tactual - Ttarget */
s32 powers[WF_PID_MAX_HISTORY]; /* power history buffer */
s32 errors[WF_PID_MAX_HISTORY]; /* error history buffer */
s32 temps[2]; /* temp. history buffer */