mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 01:31:44 +00:00
68abdbbb03
This patch reworks the ipr code by grouping the offset array together with the ipr_data structure in a new data structure called ipr_desc. This new structure also contains the name of the controller in struct irq_chip. The idea behind putting struct irq_chip in there is that we can use offsetof() to locate the base addresses in the irq_chip callbacks. This strategy has much in common with the recently merged intc2 code. One logic change has been made - the original ipr code enabled the interrupts by default but with this patch they are all disabled by default. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
#ifndef __ASM_SH_IRQ_H
|
|
#define __ASM_SH_IRQ_H
|
|
|
|
#include <asm/machvec.h>
|
|
|
|
/*
|
|
* A sane default based on a reasonable vector table size, platforms are
|
|
* advised to cap this at the hard limit that they're interested in
|
|
* through the machvec.
|
|
*/
|
|
#define NR_IRQS 256
|
|
|
|
/*
|
|
* Convert back and forth between INTEVT and IRQ values.
|
|
*/
|
|
#ifdef CONFIG_CPU_HAS_INTEVT
|
|
#define evt2irq(evt) (((evt) >> 5) - 16)
|
|
#define irq2evt(irq) (((irq) + 16) << 5)
|
|
#else
|
|
#define evt2irq(evt) (evt)
|
|
#define irq2evt(irq) (irq)
|
|
#endif
|
|
|
|
/*
|
|
* 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_canonicalize(irq) (irq)
|
|
#define irq_demux(irq) sh_mv.mv_irq_demux(irq)
|
|
|
|
#ifdef CONFIG_4KSTACKS
|
|
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
|
|
|
|
#endif /* __ASM_SH_IRQ_H */
|