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authorArnd Bergmann <arnd@arndb.de>2012-03-21 14:27:34 (GMT)
committerArnd Bergmann <arnd@arndb.de>2012-03-21 14:27:34 (GMT)
commit2cbe23e3a432e3d09a849adb197c8fcc09e7391d (patch)
tree711fe5845c4c7e7eaf8c57a597d86c0f9dda5b06 /arch/arm/kernel
parentb2f1df8d2fc14bf7e6d9d967043d4b60c2efd8dc (diff)
parented1b4acc43b0c3289faa30cf184f322ab70a5be3 (diff)
downloadlinux-fsl-qoriq-2cbe23e3a432e3d09a849adb197c8fcc09e7391d.tar.xz
Merge branch 'tegra/cleanups' into next/timer
Conflicts: arch/arm/mach-tegra/Makefile arch/arm/mach-vexpress/core.h The tegra Makefile was changed in four different branches in the same line. This merge should reduce the amount of churn. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/entry-armv.S3
-rw-r--r--arch/arm/kernel/entry-common.S8
-rw-r--r--arch/arm/kernel/process.c27
3 files changed, 25 insertions, 13 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index be16a48..22f0ed3 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -19,7 +19,9 @@
#include <asm/glue-df.h>
#include <asm/glue-pf.h>
#include <asm/vfpmacros.h>
+#ifndef CONFIG_MULTI_IRQ_HANDLER
#include <mach/entry-macro.S>
+#endif
#include <asm/thread_notify.h>
#include <asm/unwind.h>
#include <asm/unistd.h>
@@ -1101,7 +1103,6 @@ __stubs_start:
* get out of that mode without clobbering one register.
*/
vector_fiq:
- disable_fiq
subs pc, lr, #4
/*=============================================================================
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 9fd0ba9..54ee265 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -10,9 +10,15 @@
#include <asm/unistd.h>
#include <asm/ftrace.h>
-#include <mach/entry-macro.S>
#include <asm/unwind.h>
+#ifdef CONFIG_NEED_RET_TO_USER
+#include <mach/entry-macro.S>
+#else
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+#endif
+
#include "entry-header.S"
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 971d65c..008e7ce 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -61,8 +61,6 @@ extern void setup_mm_for_reboot(void);
static volatile int hlt_counter;
-#include <mach/system.h>
-
void disable_hlt(void)
{
hlt_counter++;
@@ -181,13 +179,17 @@ void cpu_idle_wait(void)
EXPORT_SYMBOL_GPL(cpu_idle_wait);
/*
- * This is our default idle handler. We need to disable
- * interrupts here to ensure we don't miss a wakeup call.
+ * This is our default idle handler.
*/
+
+void (*arm_pm_idle)(void);
+
static void default_idle(void)
{
- if (!need_resched())
- arch_idle();
+ if (arm_pm_idle)
+ arm_pm_idle();
+ else
+ cpu_do_idle();
local_irq_enable();
}
@@ -215,6 +217,10 @@ void cpu_idle(void)
cpu_die();
#endif
+ /*
+ * We need to disable interrupts here
+ * to ensure we don't miss a wakeup call.
+ */
local_irq_disable();
#ifdef CONFIG_PL310_ERRATA_769419
wmb();
@@ -222,19 +228,18 @@ void cpu_idle(void)
if (hlt_counter) {
local_irq_enable();
cpu_relax();
- } else {
+ } else if (!need_resched()) {
stop_critical_timings();
if (cpuidle_idle_call())
pm_idle();
start_critical_timings();
/*
- * This will eventually be removed - pm_idle
- * functions should always return with IRQs
- * enabled.
+ * pm_idle functions must always
+ * return with IRQs enabled.
*/
WARN_ON(irqs_disabled());
+ } else
local_irq_enable();
- }
}
leds_event(led_idle_end);
rcu_idle_exit();