^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef __ASM_SH_IRQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define __ASM_SH_IRQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/cpumask.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <asm/machvec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Only legacy non-sparseirq platforms have to set a reasonably sane
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * value here. sparseirq platforms allocate their irq_descs on the fly,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * so will expand automatically based on the number of registered IRQs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifdef CONFIG_SPARSE_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) # define NR_IRQS 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) # define NR_IRQS 512
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * This is a special IRQ number for indicating that no IRQ has been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * triggered and to simply ignore the IRQ dispatch. This is a special
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * case that can happen with IRQ auto-distribution when multiple CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * are woken up and signalled in parallel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define NO_IRQ_IGNORE ((unsigned int)-1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Simple Mask Register Support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern void make_maskreg_irq(unsigned int irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) extern unsigned short *irq_mask_register;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * PINT IRQs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void init_IRQ_pint(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) void make_imask_irq(unsigned int irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static inline int generic_irq_demux(int irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define irq_demux(irq) sh_mv.mv_irq_demux(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) void init_IRQ(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) void migrate_irqs(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #ifdef CONFIG_IRQSTACKS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) extern void irq_ctx_init(int cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern void irq_ctx_exit(int cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) # define __ARCH_HAS_DO_SOFTIRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) # define irq_ctx_init(cpu) do { } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) # define irq_ctx_exit(cpu) do { } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #ifdef CONFIG_INTC_BALANCING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) extern unsigned int irq_lookup(unsigned int irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) extern void irq_finish(unsigned int irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define irq_lookup(irq) (irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define irq_finish(irq) do { } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #include <asm-generic/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #endif /* __ASM_SH_IRQ_H */