| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_SH_IRQ_H |
| 3 | #define __ASM_SH_IRQ_H |
| 4 | |
| 5 | #include <linux/cpumask.h> |
| 6 | #include <asm/machvec.h> |
| 7 | |
| 8 | /* |
| 9 | * Only legacy non-sparseirq platforms have to set a reasonably sane |
| 10 | * value here. sparseirq platforms allocate their irq_descs on the fly, |
| 11 | * so will expand automatically based on the number of registered IRQs. |
| 12 | */ |
| 13 | #ifdef CONFIG_SPARSE_IRQ |
| 14 | # define NR_IRQS 8 |
| 15 | #else |
| 16 | # define NR_IRQS 512 |
| 17 | #endif |
| 18 | |
| 19 | /* |
| 20 | * This is a special IRQ number for indicating that no IRQ has been |
| 21 | * triggered and to simply ignore the IRQ dispatch. This is a special |
| 22 | * case that can happen with IRQ auto-distribution when multiple CPUs |
| 23 | * are woken up and signalled in parallel. |
| 24 | */ |
| 25 | #define NO_IRQ_IGNORE ((unsigned int)-1) |
| 26 | |
| 27 | /* |
| 28 | * Simple Mask Register Support |
| 29 | */ |
| 30 | extern void make_maskreg_irq(unsigned int irq); |
| 31 | extern unsigned short *irq_mask_register; |
| 32 | |
| 33 | /* |
| 34 | * PINT IRQs |
| 35 | */ |
| 36 | void init_IRQ_pint(void); |
| 37 | void make_imask_irq(unsigned int irq); |
| 38 | |
| 39 | static inline int generic_irq_demux(int irq) |
| 40 | { |
| 41 | return irq; |
| 42 | } |
| 43 | |
| 44 | #define irq_demux(irq) sh_mv.mv_irq_demux(irq) |
| 45 | |
| 46 | void init_IRQ(void); |
| 47 | void migrate_irqs(void); |
| 48 | |
| 49 | asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); |
| 50 | |
| 51 | #ifdef CONFIG_IRQSTACKS |
| 52 | extern void irq_ctx_init(int cpu); |
| 53 | extern void irq_ctx_exit(int cpu); |
| 54 | # define __ARCH_HAS_DO_SOFTIRQ |
| 55 | #else |
| 56 | # define irq_ctx_init(cpu) do { } while (0) |
| 57 | # define irq_ctx_exit(cpu) do { } while (0) |
| 58 | #endif |
| 59 | |
| 60 | #ifdef CONFIG_INTC_BALANCING |
| 61 | extern unsigned int irq_lookup(unsigned int irq); |
| 62 | extern void irq_finish(unsigned int irq); |
| 63 | #else |
| 64 | #define irq_lookup(irq) (irq) |
| 65 | #define irq_finish(irq) do { } while (0) |
| 66 | #endif |
| 67 | |
| 68 | #include <asm-generic/irq.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 69 | |
| 70 | #endif /* __ASM_SH_IRQ_H */ |