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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-19 01:06:28 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-19 01:06:28 +0100
commit077a671d7bac2fd792eb04136d4fc08fd962a55e (patch)
treeac4e99d8c1efe9583132152d225ea651a998f79d /drivers/idle
parent9a04d08b112efc22530cd1c24943a92e28ae16e4 (diff)
parentfab04b2208dd1d4121319f0096c5a5f4b70abc54 (diff)
downloadkernel-077a671d7bac2fd792eb04136d4fc08fd962a55e.tar.gz
Merge branch 'pm-cpuidle'
* pm-cpuidle: intel_idle: Support Intel Atom Processor C2000 Product Family
Diffstat (limited to 'drivers/idle')
-rw-r--r--drivers/idle/intel_idle.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 3226ce98fb18..cbd4e9abc47e 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1,7 +1,7 @@
/*
* intel_idle.c - native hardware idle loop for modern Intel processors
*
- * Copyright (c) 2010, Intel Corporation.
+ * Copyright (c) 2013, Intel Corporation.
* Len Brown <len.brown@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[] __initdata = {
{
.enter = NULL }
};
+static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+ {
+ .name = "C1-AVN",
+ .desc = "MWAIT 0x00",
+ .flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID,
+ .exit_latency = 2,
+ .target_residency = 2,
+ .enter = &intel_idle },
+ {
+ .name = "C6-AVN",
+ .desc = "MWAIT 0x51",
+ .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 15,
+ .target_residency = 45,
+ .enter = &intel_idle },
+};
/**
* intel_idle
@@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = {
.disable_promotion_to_c1e = true,
};
+static const struct idle_cpu idle_cpu_avn = {
+ .state_table = avn_cstates,
+ .disable_promotion_to_c1e = true,
+};
+
#define ICPU(model, cpu) \
{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
@@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = {
ICPU(0x3f, idle_cpu_hsw),
ICPU(0x45, idle_cpu_hsw),
ICPU(0x46, idle_cpu_hsw),
+ ICPU(0x4D, idle_cpu_avn),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);