Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/pm-imx3.c b/arch/arm/mach-imx/pm-imx3.c
new file mode 100644
index 00000000000..b3752439632
--- /dev/null
+++ b/arch/arm/mach-imx/pm-imx3.c
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/io.h>
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+#include "crmregs-imx3.h"
+
+/*
+ * Set cpu low power mode before WFI instruction. This function is called
+ * mx3 because it can be used for mx31 and mx35.
+ * Currently only WAIT_MODE is supported.
+ */
+void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode)
+{
+	int reg = __raw_readl(MXC_CCM_CCMR);
+	reg &= ~MXC_CCM_CCMR_LPM_MASK;
+
+	switch (mode) {
+	case MX3_WAIT:
+		if (cpu_is_mx35())
+			reg |= MXC_CCM_CCMR_LPM_WAIT_MX35;
+		__raw_writel(reg, MXC_CCM_CCMR);
+		break;
+	default:
+		pr_err("Unknown cpu power mode: %d\n", mode);
+		return;
+	}
+}