diff options
Diffstat (limited to 'arch/arc/kernel/irq.c')
-rw-r--r-- | arch/arc/kernel/irq.c | 50 |
1 files changed, 2 insertions, 48 deletions
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c index ba17f85285cf..538b36afe89e 100644 --- a/arch/arc/kernel/irq.c +++ b/arch/arc/kernel/irq.c | |||
@@ -41,53 +41,7 @@ void __init init_IRQ(void) | |||
41 | * "C" Entry point for any ARC ISR, called from low level vector handler | 41 | * "C" Entry point for any ARC ISR, called from low level vector handler |
42 | * @irq is the vector number read from ICAUSE reg of on-chip intc | 42 | * @irq is the vector number read from ICAUSE reg of on-chip intc |
43 | */ | 43 | */ |
44 | void arch_do_IRQ(unsigned int irq, struct pt_regs *regs) | 44 | void arch_do_IRQ(unsigned int hwirq, struct pt_regs *regs) |
45 | { | 45 | { |
46 | struct pt_regs *old_regs = set_irq_regs(regs); | 46 | handle_domain_irq(NULL, hwirq, regs); |
47 | |||
48 | irq_enter(); | ||
49 | generic_handle_irq(irq); | ||
50 | irq_exit(); | ||
51 | set_irq_regs(old_regs); | ||
52 | } | ||
53 | |||
54 | /* | ||
55 | * API called for requesting percpu interrupts - called by each CPU | ||
56 | * - For boot CPU, actually request the IRQ with genirq core + enables | ||
57 | * - For subsequent callers only enable called locally | ||
58 | * | ||
59 | * Relies on being called by boot cpu first (i.e. request called ahead) of | ||
60 | * any enable as expected by genirq. Hence Suitable only for TIMER, IPI | ||
61 | * which are guaranteed to be setup on boot core first. | ||
62 | * Late probed peripherals such as perf can't use this as there no guarantee | ||
63 | * of being called on boot CPU first. | ||
64 | */ | ||
65 | |||
66 | void arc_request_percpu_irq(int irq, int cpu, | ||
67 | irqreturn_t (*isr)(int irq, void *dev), | ||
68 | const char *irq_nm, | ||
69 | void *percpu_dev) | ||
70 | { | ||
71 | /* Boot cpu calls request, all call enable */ | ||
72 | if (!cpu) { | ||
73 | int rc; | ||
74 | |||
75 | #ifdef CONFIG_ISA_ARCOMPACT | ||
76 | /* | ||
77 | * A subsequent request_percpu_irq() fails if percpu_devid is | ||
78 | * not set. That in turns sets NOAUTOEN, meaning each core needs | ||
79 | * to call enable_percpu_irq() | ||
80 | * | ||
81 | * For ARCv2, this is done in irq map function since we know | ||
82 | * which irqs are strictly per cpu | ||
83 | */ | ||
84 | irq_set_percpu_devid(irq); | ||
85 | #endif | ||
86 | |||
87 | rc = request_percpu_irq(irq, isr, irq_nm, percpu_dev); | ||
88 | if (rc) | ||
89 | panic("Percpu IRQ request failed for %d\n", irq); | ||
90 | } | ||
91 | |||
92 | enable_percpu_irq(irq, 0); | ||
93 | } | 47 | } |