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-rw-r--r--arch/arm/kernel/bios32.c75
-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.c34
-rw-r--r--arch/arm/kernel/smp.c7
5 files changed, 34 insertions, 93 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index f58ba358990..632df9a66f8 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -16,7 +16,6 @@
#include <asm/mach/pci.h>
static int debug_pci;
-static int use_firmware;
/*
* We can't use pci_find_device() here since we are
@@ -295,28 +294,6 @@ static inline int pdev_bad_for_parity(struct pci_dev *dev)
}
/*
- * Adjust the device resources from bus-centric to Linux-centric.
- */
-static void __devinit
-pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
-{
- resource_size_t offset;
- int i;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- if (dev->resource[i].start == 0)
- continue;
- if (dev->resource[i].flags & IORESOURCE_MEM)
- offset = root->mem_offset;
- else
- offset = root->io_offset;
-
- dev->resource[i].start += offset;
- dev->resource[i].end += offset;
- }
-}
-
-/*
* pcibios_fixup_bus - Called after each bus is probed,
* but before its children are examined.
*/
@@ -333,8 +310,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
u16 status;
- pdev_fixup_device_resources(root, dev);
-
pci_read_config_word(dev, PCI_STATUS, &status);
/*
@@ -400,43 +375,6 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
#endif
/*
- * Convert from Linux-centric to bus-centric addresses for bridge devices.
- */
-void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res)
-{
- struct pci_sys_data *root = dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = root->io_offset;
- if (res->flags & IORESOURCE_MEM)
- offset = root->mem_offset;
-
- region->start = res->start - offset;
- region->end = res->end - offset;
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-void __devinit
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region)
-{
- struct pci_sys_data *root = dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = root->io_offset;
- if (res->flags & IORESOURCE_MEM)
- offset = root->mem_offset;
-
- res->start = region->start + offset;
- res->end = region->end + offset;
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
-/*
* Swizzle the device pin each time we cross a bridge.
* This might update pin and returns the slot number.
*/
@@ -497,10 +435,10 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
if (ret > 0) {
if (list_empty(&sys->resources)) {
- pci_add_resource(&sys->resources,
- &ioport_resource);
- pci_add_resource(&sys->resources,
- &iomem_resource);
+ pci_add_resource_offset(&sys->resources,
+ &ioport_resource, sys->io_offset);
+ pci_add_resource_offset(&sys->resources,
+ &iomem_resource, sys->mem_offset);
}
sys->bus = hw->scan(nr, sys);
@@ -525,6 +463,7 @@ void __init pci_common_init(struct hw_pci *hw)
INIT_LIST_HEAD(&hw->buses);
+ pci_add_flags(PCI_REASSIGN_ALL_RSRC);
if (hw->preinit)
hw->preinit();
pcibios_init_hw(hw);
@@ -536,7 +475,7 @@ void __init pci_common_init(struct hw_pci *hw)
list_for_each_entry(sys, &hw->buses, node) {
struct pci_bus *bus = sys->bus;
- if (!use_firmware) {
+ if (!pci_has_flag(PCI_PROBE_ONLY)) {
/*
* Size the bridge windows.
*/
@@ -573,7 +512,7 @@ char * __init pcibios_setup(char *str)
debug_pci = 1;
return NULL;
} else if (!strcmp(str, "firmware")) {
- use_firmware = 1;
+ pci_add_flags(PCI_PROBE_ONLY);
return NULL;
}
return str;
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index be16a48007b..22f0ed324f3 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 9fd0ba90c1d..54ee265dd81 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 971d65c253a..d3eca452453 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();
@@ -222,26 +228,23 @@ 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();
tick_nohz_idle_exit();
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
+ schedule_preempt_disabled();
}
}
@@ -535,8 +538,7 @@ int vectors_user_mapping(void)
struct mm_struct *mm = current->mm;
return install_special_mapping(mm, 0xffff0000, PAGE_SIZE,
VM_READ | VM_EXEC |
- VM_MAYREAD | VM_MAYEXEC |
- VM_ALWAYSDUMP | VM_RESERVED,
+ VM_MAYREAD | VM_MAYEXEC | VM_RESERVED,
NULL);
}
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index cdeb727527d..d616ed51e7a 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -295,13 +295,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
*/
percpu_timer_setup();
- while (!cpu_active(cpu))
- cpu_relax();
-
- /*
- * cpu_active bit is set, so it's safe to enalbe interrupts
- * now.
- */
local_irq_enable();
local_fiq_enable();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-02-22 04:46:13 +0000