diff options
Diffstat (limited to 'arch/sh/include/asm/irq.h')
-rw-r--r-- | arch/sh/include/asm/irq.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h new file mode 100644 index 000000000..8065a3222 --- /dev/null +++ b/arch/sh/include/asm/irq.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SH_IRQ_H +#define __ASM_SH_IRQ_H + +#include <linux/cpumask.h> +#include <asm/machvec.h> + +/* + * Only legacy non-sparseirq platforms have to set a reasonably sane + * value here. sparseirq platforms allocate their irq_descs on the fly, + * so will expand automatically based on the number of registered IRQs. + */ +#ifdef CONFIG_SPARSE_IRQ +# define NR_IRQS 8 +#else +# define NR_IRQS 512 +#endif + +/* + * This is a special IRQ number for indicating that no IRQ has been + * triggered and to simply ignore the IRQ dispatch. This is a special + * case that can happen with IRQ auto-distribution when multiple CPUs + * are woken up and signalled in parallel. + */ +#define NO_IRQ_IGNORE ((unsigned int)-1) + +/* + * Simple Mask Register Support + */ +extern void make_maskreg_irq(unsigned int irq); +extern unsigned short *irq_mask_register; + +/* + * PINT IRQs + */ +void init_IRQ_pint(void); +void make_imask_irq(unsigned int irq); + +static inline int generic_irq_demux(int irq) +{ + return irq; +} + +#define irq_demux(irq) sh_mv.mv_irq_demux(irq) + +void init_IRQ(void); +void migrate_irqs(void); + +asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); + +#ifdef CONFIG_IRQSTACKS +extern void irq_ctx_init(int cpu); +extern void irq_ctx_exit(int cpu); +# define __ARCH_HAS_DO_SOFTIRQ +#else +# define irq_ctx_init(cpu) do { } while (0) +# define irq_ctx_exit(cpu) do { } while (0) +#endif + +#ifdef CONFIG_INTC_BALANCING +extern unsigned int irq_lookup(unsigned int irq); +extern void irq_finish(unsigned int irq); +#else +#define irq_lookup(irq) (irq) +#define irq_finish(irq) do { } while (0) +#endif + +#include <asm-generic/irq.h> +#ifdef CONFIG_CPU_SH5 +#include <cpu/irq.h> +#endif + +#endif /* __ASM_SH_IRQ_H */ |