include/linux/irqnr.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _LINUX_IRQNR_H
0003 #define _LINUX_IRQNR_H
0004
0005 #include <uapi/linux/irqnr.h>
0006
0007
0008 extern int nr_irqs;
0009 extern struct irq_desc *irq_to_desc(unsigned int irq);
0010 unsigned int irq_get_next_irq(unsigned int offset);
0011
0012 # define for_each_irq_desc(irq, desc)                   \
0013     for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;       \
0014          irq++, desc = irq_to_desc(irq))                \
0015         if (!desc)                      \
0016             ;                       \
0017         else
0018
0019
0020 # define for_each_irq_desc_reverse(irq, desc)               \
0021     for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;  \
0022          irq--, desc = irq_to_desc(irq))                \
0023         if (!desc)                      \
0024             ;                       \
0025         else
0026
0027 # define for_each_active_irq(irq)           \
0028     for (irq = irq_get_next_irq(0); irq < nr_irqs;  \
0029          irq = irq_get_next_irq(irq + 1))
0030
0031 #define for_each_irq_nr(irq)                   \
0032        for (irq = 0; irq < nr_irqs; irq++)
0033
0034 #endif