| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _LINUX_IRQNR_H |
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| 3 | #define _LINUX_IRQNR_H |
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| 4 | |
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| 5 | #include <uapi/linux/irqnr.h> |
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| 6 | |
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| 7 | |
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| 8 | unsigned int irq_get_nr_irqs(void) __pure; |
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| 9 | unsigned int irq_set_nr_irqs(unsigned int nr); |
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| 10 | extern struct irq_desc *irq_to_desc(unsigned int irq); |
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| 11 | unsigned int irq_get_next_irq(unsigned int offset); |
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| 12 | |
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| 13 | #define for_each_irq_desc(irq, desc) \ |
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| 14 | for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__; \ |
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| 15 | __nr_irqs__ = 0) \ |
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| 16 | for (irq = 0, desc = irq_to_desc(irq); irq < __nr_irqs__; \ |
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| 17 | irq++, desc = irq_to_desc(irq)) \ |
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| 18 | if (!desc) \ |
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| 19 | ; \ |
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| 20 | else |
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| 21 | |
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| 22 | # define for_each_irq_desc_reverse(irq, desc) \ |
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| 23 | for (irq = irq_get_nr_irqs() - 1, desc = irq_to_desc(irq); \ |
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| 24 | irq >= 0; irq--, desc = irq_to_desc(irq)) \ |
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| 25 | if (!desc) \ |
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| 26 | ; \ |
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| 27 | else |
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| 28 | |
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| 29 | #define for_each_active_irq(irq) \ |
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| 30 | for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__; \ |
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| 31 | __nr_irqs__ = 0) \ |
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| 32 | for (irq = irq_get_next_irq(0); irq < __nr_irqs__; \ |
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| 33 | irq = irq_get_next_irq(irq + 1)) |
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| 34 | |
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| 35 | #define for_each_irq_nr(irq) \ |
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| 36 | for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__; \ |
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| 37 | __nr_irqs__ = 0) \ |
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| 38 | for (irq = 0; irq < __nr_irqs__; irq++) |
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| 39 | |
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| 40 | #endif |
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| 41 | |
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