Merge commit 'perf/core' into perf/hw-breakpoint

Conflicts:
	kernel/Makefile
	kernel/trace/Makefile
	kernel/trace/trace.h
	samples/Makefile

Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.

1 files changed, 10 insertions, 7 deletions

diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 33fbae79af5e..379a664809b0 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -36,14 +36,13 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 
+#include <asm/processor.h>
 #include <asm/time.h>
 #include <asm/mach-au1x00/au1000.h>
 
 /* 32kHz clock enabled and detected */
 #define CNTR_OK (SYS_CNTRL_E0 | SYS_CNTRL_32S)
 
-extern int allow_au1k_wait; /* default off for CP0 Counter */
-
 static cycle_t au1x_counter1_read(struct clocksource *cs)
 {
 	return au_readl(SYS_RTCREAD);
@@ -89,7 +88,7 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
 	.irq		= AU1000_RTC_MATCH2_INT,
 	.set_next_event	= au1x_rtcmatch2_set_next_event,
 	.set_mode	= au1x_rtcmatch2_set_mode,
-	.cpumask	= CPU_MASK_ALL_PTR,
+	.cpumask	= cpu_all_mask,
 };
 
 static struct irqaction au1x_rtcmatch2_irqaction = {
@@ -153,13 +152,17 @@ void __init plat_time_init(void)
 
 	printk(KERN_INFO "Alchemy clocksource installed\n");
 
-	/* can now use 'wait' */
-	allow_au1k_wait = 1;
 	return;
 
 cntr_err:
-	/* counters unusable, use C0 counter */
+	/*
+	 * MIPS kernel assigns 'au1k_wait' to 'cpu_wait' before this
+	 * function is called.  Because the Alchemy counters are unusable
+	 * the C0 timekeeping code is installed and use of the 'wait'
+	 * instruction must be prohibited, which is done most easily by
+	 * assigning NULL to cpu_wait.
+	 */
+	cpu_wait = NULL;
 	r4k_clockevent_init();
 	init_r4k_clocksource();
-	allow_au1k_wait = 0;
 }