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21#include <linux/kernel_stat.h>
22#include <linux/signal.h>
23#include <linux/ioport.h>
24#include <linux/interrupt.h>
25#include <linux/irq.h>
26#include <linux/irqchip.h>
27#include <linux/random.h>
28#include <linux/smp.h>
29#include <linux/init.h>
30#include <linux/seq_file.h>
31#include <linux/errno.h>
32#include <linux/list.h>
33#include <linux/kallsyms.h>
34#include <linux/proc_fs.h>
35#include <linux/export.h>
36
37#include <asm/hardware/cache-l2x0.h>
38#include <asm/hardware/cache-uniphier.h>
39#include <asm/outercache.h>
40#include <asm/exception.h>
41#include <asm/mach/arch.h>
42#include <asm/mach/irq.h>
43#include <asm/mach/time.h>
44
45unsigned long irq_err_count;
46
47int arch_show_interrupts(struct seq_file *p, int prec)
48{
49#ifdef CONFIG_FIQ
50 show_fiq_list(p, prec);
51#endif
52#ifdef CONFIG_SMP
53 show_ipi_list(p, prec);
54#endif
55 seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
56 return 0;
57}
58
59
60
61
62
63
64
65void handle_IRQ(unsigned int irq, struct pt_regs *regs)
66{
67 __handle_domain_irq(NULL, irq, false, regs);
68}
69
70
71
72
73asmlinkage void __exception_irq_entry
74asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
75{
76 handle_IRQ(irq, regs);
77}
78
79void __init init_IRQ(void)
80{
81 int ret;
82
83 if (IS_ENABLED(CONFIG_OF) && !machine_desc->init_irq)
84 irqchip_init();
85 else
86 machine_desc->init_irq();
87
88 if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_CACHE_L2X0) &&
89 (machine_desc->l2c_aux_mask || machine_desc->l2c_aux_val)) {
90 if (!outer_cache.write_sec)
91 outer_cache.write_sec = machine_desc->l2c_write_sec;
92 ret = l2x0_of_init(machine_desc->l2c_aux_val,
93 machine_desc->l2c_aux_mask);
94 if (ret && ret != -ENODEV)
95 pr_err("L2C: failed to init: %d\n", ret);
96 }
97
98 uniphier_cache_init();
99}
100
101#ifdef CONFIG_SPARSE_IRQ
102int __init arch_probe_nr_irqs(void)
103{
104 nr_irqs = machine_desc->nr_irqs ? machine_desc->nr_irqs : NR_IRQS;
105 return nr_irqs;
106}
107#endif
108