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Cpuidle governor only suggests the state to enter using the governor->select() interface, but allows the low level driver to override the recommended state. The actual entered state may be different because of software or hardware demotion. Software demotion is done by the back-end cpuidle driver and can be accounted correctly. Current cpuidle code uses last_state field to capture the actual state entered and based on that updates the statistics for the state entered. Ideally the driver enter routine should update the counters, and it should return the state actually entered rather than the time spent there. The generic cpuidle code should simply handle where the counters live in the sysfs namespace, not updating the counters. Reference: https://lkml.org/lkml/2011/3/25/52 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com> |
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| .. | ||
| include/mach | ||
| addr-map.c | ||
| common.c | ||
| common.h | ||
| cpuidle.c | ||
| d2net_v2-setup.c | ||
| db88f6281-bp-setup.c | ||
| dockstar-setup.c | ||
| guruplug-setup.c | ||
| irq.c | ||
| Kconfig | ||
| lacie_v2-common.c | ||
| lacie_v2-common.h | ||
| Makefile | ||
| Makefile.boot | ||
| mpp.c | ||
| mpp.h | ||
| mv88f6281gtw_ge-setup.c | ||
| netspace_v2-setup.c | ||
| netxbig_v2-setup.c | ||
| openrd-setup.c | ||
| pcie.c | ||
| rd88f6192-nas-setup.c | ||
| rd88f6281-setup.c | ||
| sheevaplug-setup.c | ||
| t5325-setup.c | ||
| ts41x-setup.c | ||
| ts219-setup.c | ||
| tsx1x-common.c | ||
| tsx1x-common.h | ||