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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: do not use the LAPIC timer for ATOM C2
intel_idle: add initial Sandy Bridge support
acpi_idle: delete bogus data from cpuidle_state.power_usage
intel_idle: delete bogus data from cpuidle_state.power_usage
intel_idle: simplify test for leave_mm()
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If we use the LAPIC timer during ATOM C2 on
some nvidia chisets, the system stalls.
https://bugzilla.kernel.org/show_bug.cgi?id=21032
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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The mW data in this field is a total fabrication
and serves no purpose other than to mislead
those who might see it in sysfs. Delete it.
Signed-off-by: Len Brown <len.brown@intel.com>
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A run-time test to invoke leave_mm() for the deepest
supported C-state is redundant, since the appropriate
C-states already have flags with CPUIDLE_FLAG_TLB_FLUSHED set.
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hotplug: In the MWAIT case of play_dead, CLFLUSH the cache line
x86, hotplug: Move WBINVD back outside the play_dead loop
x86, hotplug: Use mwait to offline a processor, fix the legacy case
x86, mwait: Move mwait constants to a common header file
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We have MWAIT constants spread across three different .c files, for no
good reason. Move them all into a common header file.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Len Brown <lenb@kernel.org>
LKML-Reference: <tip-*@git.kernel.org>
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ATM-C6 was commented out, pending public documentation.
https://bugzilla.kernel.org/show_bug.cgi?id=19762
Tested-by: Dennis Jansen <Dennis.Jansen@...>
Signed-off-by: Len Brown <len.brown@intel.com>
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Avoid TLB flush IPIs for the cores in deeper c-states by voluntary leave_mm()
before entering into that state. CPUs tend to flush TLB in those c-states
anyways.
acpi_idle does this with C3-type states, but it was not caried over
when intel_idle was introduced. intel_idle can apply it
to C-states in addition to those that ACPI might export as C3...
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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intel_idle_cpuidle_devices is a percpu pointer
but was missing __percpu markup.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Remove execution permission from source file.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: recognize Lincroft Atom Processor
intel_idle: no longer EXPERIMENTAL
intel_idle: disable module support
intel_idle: add support for Westmere-EX
intel_idle: delete power_policy modparam, and choose substate functions
intel_idle: delete substates DEBUG modparam
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Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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The idea behind power policy was that it would start off as a modparam,
and then hook into the new "global" in-kernel power vs energy tunable.
But that tunable isn't happening, so delete the hook here.
With the policy hook gone, the sub-state choice functions
do not do anything useful, so delete them from the critical path.
To handle sub-states in the future, we will advertise them
with dedicated cpuidle_state entries. That is necessary
because some of the sub-states will have substantially different
properties than their peer sub-states.
Signed-off-by: Len Brown <len.brown@intel.com>
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it isn't useful anymore
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Remove pointless printk from p4-clockmod.
[CPUFREQ] Fix section mismatch for powernow_cpu_init in powernow-k7.c
[CPUFREQ] Fix section mismatch for longhaul_cpu_init.
[CPUFREQ] Fix section mismatch for longrun_cpu_init.
[CPUFREQ] powernow-k8: Fix misleading variable naming
[CPUFREQ] Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used)
[CPUFREQ] arch/x86/kernel/cpu/cpufreq: use for_each_pci_dev()
[CPUFREQ] fix brace coding style issue.
[CPUFREQ] x86 cpufreq: Make trace_power_frequency cpufreq driver independent
[CPUFREQ] acpi-cpufreq: Fix CPU_ANY CPUFREQ_{PRE,POST}CHANGE notification
[CPUFREQ] ondemand: don't synchronize sample rate unless multiple cpus present
[CPUFREQ] unexport (un)lock_policy_rwsem* functions
[CPUFREQ] ondemand: Refactor frequency increase code
[CPUFREQ] powernow-k8: On load failure, remind the user to enable support in BIOS setup
[CPUFREQ] powernow-k8: Limit Pstate transition latency check
[CPUFREQ] Fix PCC driver error path
[CPUFREQ] fix double freeing in error path of pcc-cpufreq
[CPUFREQ] pcc driver should check for pcch method before calling _OSC
[CPUFREQ] fix memory leak in cpufreq_add_dev
[CPUFREQ] revert "[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)"
Manually fix up non-data merge conflict introduced by new calling
conventions for trace_power_start() in commit 6f4f2723d085 ("x86
cpufreq: Make trace_power_frequency cpufreq driver independent"), which
didn't update the intel_idle native hardware cpuidle driver.
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This EXPERIMENTAL driver supersedes acpi_idle on
Intel Atom Processors, Intel Core i3/i5/i7 Processors
and associated Intel Xeon processors.
It does not support the Intel Core2 processor or earlier.
For kernels configured with ACPI, CONFIG_INTEL_IDLE=y
allows intel_idle to probe before the ACPI processor driver.
Booting with "intel_idle.max_cstate=0" disables intel_idle
and the system will fall back on ACPI's "acpi_idle".
Typical Linux distributions load ACPI processor module early,
making CONFIG_INTEL_IDLE=m not easily useful on ACPI platforms.
intel_idle probes all processors at module_init time.
Processors that are hot-added later will be limited
to using C1 in idle.
Signed-off-by: Len Brown <len.brown@intel.com>
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