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authorIngo Molnar <mingo@kernel.org>2012-04-13 09:57:10 +0200
committerIngo Molnar <mingo@kernel.org>2012-04-13 09:57:10 +0200
commita385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (patch)
treea2c186cb828e3713c2ec48a4d7191166fb798b3d /arch/arm/include/asm/cpuidle.h
parent659c36fcda403013a01b85da07cf2d9711e6d6c7 (diff)
parent0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff)
Merge tag 'v3.4-rc2' into perf/core
Merge Linux 3.4-rc2: we were on v3.3, update the base. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/include/asm/cpuidle.h')
-rw-r--r--arch/arm/include/asm/cpuidle.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cpuidle.h b/arch/arm/include/asm/cpuidle.h
new file mode 100644
index 000000000000..2fca60ab513a
--- /dev/null
+++ b/arch/arm/include/asm/cpuidle.h
@@ -0,0 +1,29 @@
+#ifndef __ASM_ARM_CPUIDLE_H
+#define __ASM_ARM_CPUIDLE_H
+
+#ifdef CONFIG_CPU_IDLE
+extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index);
+#else
+static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index) { return -ENODEV; }
+#endif
+
+/* Common ARM WFI state */
+#define ARM_CPUIDLE_WFI_STATE_PWR(p) {\
+ .enter = arm_cpuidle_simple_enter,\
+ .exit_latency = 1,\
+ .target_residency = 1,\
+ .power_usage = p,\
+ .flags = CPUIDLE_FLAG_TIME_VALID,\
+ .name = "WFI",\
+ .desc = "ARM WFI",\
+}
+
+/*
+ * in case power_specified == 1, give a default WFI power value needed
+ * by some governors
+ */
+#define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX)
+
+#endif