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Merge branch 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm

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Pull #1 ARM updates from Russell King:
 "This one covers stuff which Arnd is waiting for me to push, as this is
  shared between both our trees and probably other trees elsewhere.

  Essentially, this contains:
   - AMBA primecell device initializer updates - mostly shrinking the
     size of the device declarations in platform code to something more
     reasonable.
   - Getting rid of the NO_IRQ crap from AMBA primecell stuff.
   - Nicolas' idle cleanups.  This in combination with the restart
     cleanups from the last merge window results in a great many
     mach/system.h files being deleted."

Yay: ~80 files, ~2000 lines deleted.

* 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm: (60 commits)
  ARM: remove disable_fiq and arch_ret_to_user macros
  ARM: make entry-macro.S depend on !MULTI_IRQ_HANDLER
  ARM: rpc: make default fiq handler run-time installed
  ARM: make arch_ret_to_user macro optional
  ARM: amba: samsung: use common amba device initializers
  ARM: amba: spear: use common amba device initializers
  ARM: amba: nomadik: use common amba device initializers
  ARM: amba: u300: use common amba device initializers
  ARM: amba: lpc32xx: use common amba device initializers
  ARM: amba: netx: use common amba device initializers
  ARM: amba: bcmring: use common amba device initializers
  ARM: amba: ep93xx: use common amba device initializers
  ARM: amba: omap2: use common amba device initializers
  ARM: amba: integrator: use common amba device initializers
  ARM: amba: realview: get rid of private platform amba_device initializer
  ARM: amba: versatile: get rid of private platform amba_device initializer
  ARM: amba: vexpress: get rid of private platform amba_device initializer
  ARM: amba: provide common initializers for static amba devices
  ARM: amba: make use of -1 IRQs warn
  ARM: amba: u300: get rid of NO_IRQ initializers
  ...
This commit is contained in:
Linus Torvalds
2012-03-23 17:30:49 -07:00
parent bab2d8c602 61b80086a5
commit 56c10bf82c
202 changed files with 935 additions and 2901 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/kernel/entry-armv.S
View File

@ -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
/*=============================================================================

8
arch/arm/kernel/entry-common.S
View File

@ -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"

27
arch/arm/kernel/process.c
View File

@ -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();