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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-02-08 16:42:51 +1100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-07 22:05:14 -0800 |
| commit | ac171c46667c1cb2ee9e22312291df6ed78e1b6e (patch) | |
| tree | 86ca722abc1ddceb0887b3ed6a195d77bb200dc2 /drivers/macintosh/windfarm_pid.h | |
| parent | 746f956beb534ddf73da4346de81f2941c8573f8 (diff) | |
| download | lwn-ac171c46667c1cb2ee9e22312291df6ed78e1b6e.tar.gz lwn-ac171c46667c1cb2ee9e22312291df6ed78e1b6e.zip | |
[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.h | 1 |
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 */ |