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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 16:50:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 16:50:35 -0800
commit3c0cb7c31c206aaedb967e44b98442bbeb17a6c4 (patch)
tree3ecba45d7ffae4fba4a5aafaef4af5b0b1105bde /arch/arm/kernel/irq.c
parentf70f5b9dc74ca7d0a64c4ead3fb28da09dc1b234 (diff)
parent404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34 (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits) ARM: DMA: add support for DMA debugging ARM: PL011: add DMA burst threshold support for ST variants ARM: PL011: Add support for transmit DMA ARM: PL011: Ensure IRQs are disabled in UART interrupt handler ARM: PL011: Separate hardware FIFO size from TTY FIFO size ARM: PL011: Allow better handling of vendor data ARM: PL011: Ensure error flags are clear at startup ARM: PL011: include revision number in boot-time port printk ARM: vexpress: add sched_clock() for Versatile Express ARM i.MX53: Make MX53 EVK bootable ARM i.MX53: Some bug fix about MX53 MSL code ARM: 6607/1: sa1100: Update platform device registration ARM: 6606/1: sa1100: Fix platform device registration ARM i.MX51: rename IPU irqs ARM i.MX51: Add ipu clock support ARM: imx/mx27_3ds: Add PMIC support ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn() mx51: fix usb clock support MX51: Add support for usb host 2 arch/arm/plat-mxc/ehci.c: fix errors/typos ...
Diffstat (limited to 'arch/arm/kernel/irq.c')
-rw-r--r--arch/arm/kernel/irq.c34
1 files changed, 23 insertions, 11 deletions
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 36ad3be4692..8135438b881 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -35,8 +35,10 @@
#include <linux/list.h>
#include <linux/kallsyms.h>
#include <linux/proc_fs.h>
+#include <linux/ftrace.h>
#include <asm/system.h>
+#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
@@ -47,8 +49,6 @@
#define irq_finish(irq) do { } while (0)
#endif
-unsigned int arch_nr_irqs;
-void (*init_arch_irq)(void) __initdata = NULL;
unsigned long irq_err_count;
int show_interrupts(struct seq_file *p, void *v)
@@ -57,11 +57,20 @@ int show_interrupts(struct seq_file *p, void *v)
struct irq_desc *desc;
struct irqaction * action;
unsigned long flags;
+ int prec, n;
+
+ for (prec = 3, n = 1000; prec < 10 && n <= nr_irqs; prec++)
+ n *= 10;
+
+#ifdef CONFIG_SMP
+ if (prec < 4)
+ prec = 4;
+#endif
if (i == 0) {
char cpuname[12];
- seq_printf(p, " ");
+ seq_printf(p, "%*s ", prec, "");
for_each_present_cpu(cpu) {
sprintf(cpuname, "CPU%d", cpu);
seq_printf(p, " %10s", cpuname);
@@ -76,7 +85,7 @@ int show_interrupts(struct seq_file *p, void *v)
if (!action)
goto unlock;
- seq_printf(p, "%3d: ", i);
+ seq_printf(p, "%*d: ", prec, i);
for_each_present_cpu(cpu)
seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
seq_printf(p, " %10s", desc->chip->name ? : "-");
@@ -89,13 +98,15 @@ unlock:
raw_spin_unlock_irqrestore(&desc->lock, flags);
} else if (i == nr_irqs) {
#ifdef CONFIG_FIQ
- show_fiq_list(p, v);
+ show_fiq_list(p, prec);
#endif
#ifdef CONFIG_SMP
- show_ipi_list(p);
- show_local_irqs(p);
+ show_ipi_list(p, prec);
+#endif
+#ifdef CONFIG_LOCAL_TIMERS
+ show_local_irqs(p, prec);
#endif
- seq_printf(p, "Err: %10lu\n", irq_err_count);
+ seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
}
return 0;
}
@@ -105,7 +116,8 @@ unlock:
* come via this function. Instead, they should provide their
* own 'handler'
*/
-asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
+asmlinkage void __exception_irq_entry
+asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
@@ -154,13 +166,13 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
void __init init_IRQ(void)
{
- init_arch_irq();
+ machine_desc->init_irq();
}
#ifdef CONFIG_SPARSE_IRQ
int __init arch_probe_nr_irqs(void)
{
- nr_irqs = arch_nr_irqs ? arch_nr_irqs : NR_IRQS;
+ nr_irqs = machine_desc->nr_irqs ? machine_desc->nr_irqs : NR_IRQS;
return nr_irqs;
}
#endif