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authorArnd Bergmann <arnd@arndb.de>2012-03-21 10:27:34 -0400
committerArnd Bergmann <arnd@arndb.de>2012-03-21 10:27:34 -0400
commit2cbe23e3a432e3d09a849adb197c8fcc09e7391d (patch)
tree711fe5845c4c7e7eaf8c57a597d86c0f9dda5b06 /arch/arm/kernel
parentb2f1df8d2fc14bf7e6d9d967043d4b60c2efd8dc (diff)
parented1b4acc43b0c3289faa30cf184f322ab70a5be3 (diff)
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 be16a48007b4..22f0ed324f37 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -19,7 +19,9 @@
19#include <asm/glue-df.h> 19#include <asm/glue-df.h>
20#include <asm/glue-pf.h> 20#include <asm/glue-pf.h>
21#include <asm/vfpmacros.h> 21#include <asm/vfpmacros.h>
22#ifndef CONFIG_MULTI_IRQ_HANDLER
22#include <mach/entry-macro.S> 23#include <mach/entry-macro.S>
24#endif
23#include <asm/thread_notify.h> 25#include <asm/thread_notify.h>
24#include <asm/unwind.h> 26#include <asm/unwind.h>
25#include <asm/unistd.h> 27#include <asm/unistd.h>
@@ -1101,7 +1103,6 @@ __stubs_start:
1101 * get out of that mode without clobbering one register. 1103 * get out of that mode without clobbering one register.
1102 */ 1104 */
1103vector_fiq: 1105vector_fiq:
1104 disable_fiq
1105 subs pc, lr, #4 1106 subs pc, lr, #4
1106 1107
1107/*============================================================================= 1108/*=============================================================================
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 9fd0ba90c1d2..54ee265dd819 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -10,9 +10,15 @@
10 10
11#include <asm/unistd.h> 11#include <asm/unistd.h>
12#include <asm/ftrace.h> 12#include <asm/ftrace.h>
13#include <mach/entry-macro.S>
14#include <asm/unwind.h> 13#include <asm/unwind.h>
15 14
15#ifdef CONFIG_NEED_RET_TO_USER
16#include <mach/entry-macro.S>
17#else
18 .macro arch_ret_to_user, tmp1, tmp2
19 .endm
20#endif
21
16#include "entry-header.S" 22#include "entry-header.S"
17 23
18 24
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 971d65c253a9..008e7ce766a7 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -61,8 +61,6 @@ extern void setup_mm_for_reboot(void);
61 61
62static volatile int hlt_counter; 62static volatile int hlt_counter;
63 63
64#include <mach/system.h>
65
66void disable_hlt(void) 64void disable_hlt(void)
67{ 65{
68 hlt_counter++; 66 hlt_counter++;
@@ -181,13 +179,17 @@ void cpu_idle_wait(void)
181EXPORT_SYMBOL_GPL(cpu_idle_wait); 179EXPORT_SYMBOL_GPL(cpu_idle_wait);
182 180
183/* 181/*
184 * This is our default idle handler. We need to disable 182 * This is our default idle handler.
185 * interrupts here to ensure we don't miss a wakeup call.
186 */ 183 */
184
185void (*arm_pm_idle)(void);
186
187static void default_idle(void) 187static void default_idle(void)
188{ 188{
189 if (!need_resched()) 189 if (arm_pm_idle)
190 arch_idle(); 190 arm_pm_idle();
191 else
192 cpu_do_idle();
191 local_irq_enable(); 193 local_irq_enable();
192} 194}
193 195
@@ -215,6 +217,10 @@ void cpu_idle(void)
215 cpu_die(); 217 cpu_die();
216#endif 218#endif
217 219
220 /*
221 * We need to disable interrupts here
222 * to ensure we don't miss a wakeup call.
223 */
218 local_irq_disable(); 224 local_irq_disable();
219#ifdef CONFIG_PL310_ERRATA_769419 225#ifdef CONFIG_PL310_ERRATA_769419
220 wmb(); 226 wmb();
@@ -222,19 +228,18 @@ void cpu_idle(void)
222 if (hlt_counter) { 228 if (hlt_counter) {
223 local_irq_enable(); 229 local_irq_enable();
224 cpu_relax(); 230 cpu_relax();
225 } else { 231 } else if (!need_resched()) {
226 stop_critical_timings(); 232 stop_critical_timings();
227 if (cpuidle_idle_call()) 233 if (cpuidle_idle_call())
228 pm_idle(); 234 pm_idle();
229 start_critical_timings(); 235 start_critical_timings();
230 /* 236 /*
231 * This will eventually be removed - pm_idle 237 * pm_idle functions must always
232 * functions should always return with IRQs 238 * return with IRQs enabled.
233 * enabled.
234 */ 239 */
235 WARN_ON(irqs_disabled()); 240 WARN_ON(irqs_disabled());
241 } else
236 local_irq_enable(); 242 local_irq_enable();
237 }
238 } 243 }
239 leds_event(led_idle_end); 244 leds_event(led_idle_end);
240 rcu_idle_exit(); 245 rcu_idle_exit();