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| author |   Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> | 2008-02-11 17:46:31 -0800 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2008-02-14 00:09:55 -0500 |
| commit | 4fcb2fcd4d0678b8ae103d257dcb28074cbfc7fa (patch) | |
| tree | 54bcf486976184804c8fc786d09a04e1ce26ef99 /drivers/cpuidle/cpuidle.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 (diff) | |
| download | linux-dev-4fcb2fcd4d0678b8ae103d257dcb28074cbfc7fa.tar.xz linux-dev-4fcb2fcd4d0678b8ae103d257dcb28074cbfc7fa.zip | |
ACPI, cpuidle: Clarify C-state description in sysfs
Add a new sysfs entry under cpuidle states. desc - can be used by driver to
communicate to userspace any specific information about the state.
This helps in identifying the exact hardware C-states behind the ACPI C-state
definition.
Idea is to export this through powertop, which will help to map the C-state
reported by powertop to actual hardware C-state.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 60f71e6345e3..d73663a52324 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -219,7 +219,8 @@ static void poll_idle_init(struct cpuidle_device *dev) cpuidle_set_statedata(state, NULL); - snprintf(state->name, CPUIDLE_NAME_LEN, "C0 (poll idle)"); + snprintf(state->name, CPUIDLE_NAME_LEN, "C0"); + snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE"); state->exit_latency = 0; state->target_residency = 0; state->power_usage = -1; |