Revision 00250ec90963b7ef6678438888f3244985ecde14 authored by Andre Przywara on 09 April 2012, 22:16:34 UTC, committed by Guenter Roeck on 18 April 2012, 18:15:40 UTC
Newer BKDG[1] versions recommend a different initialization value for the running average range register in the northbridge. This improves the power reading by avoiding counter saturations resulting in bogus values for anything below about 80% of TDP power consumption. Updated BIOSes will have this new value set up from the beginning, but meanwhile we correct this value ourselves. This needs to be done on all northbridges, even on those where the driver itself does not register at. This fixes the driver on all current machines to provide proper values for idle load. [1] http://support.amd.com/us/Processor_TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf Chapter 3.8: D18F5xE0 Processor TDP Running Average (p. 452) Signed-off-by: Andre Przywara <andre.przywara@amd.com> Acked-by: Jean Delvare <khali@linux-fr.org> [guenter.roeck@ericsson.com: Removed unnecessary return statement] Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: stable@vger.kernel.org # 3.0+
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| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 394 bytes |
| compat.c | -rw-r--r-- | 18.3 KB |
| compat_mq.c | -rw-r--r-- | 4.1 KB |
| ipc_sysctl.c | -rw-r--r-- | 6.0 KB |
| ipcns_notifier.c | -rw-r--r-- | 2.2 KB |
| mq_sysctl.c | -rw-r--r-- | 2.7 KB |
| mqueue.c | -rw-r--r-- | 30.5 KB |
| msg.c | -rw-r--r-- | 20.9 KB |
| msgutil.c | -rw-r--r-- | 2.7 KB |
| namespace.c | -rw-r--r-- | 4.3 KB |
| sem.c | -rw-r--r-- | 42.1 KB |
| shm.c | -rw-r--r-- | 29.2 KB |
| syscall.c | -rw-r--r-- | 2.3 KB |
| util.c | -rw-r--r-- | 22.8 KB |
| util.h | -rw-r--r-- | 5.3 KB |
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