cregit-Linux how code gets into the kernel

Release 4.11 drivers/sh/intc/internals.h

Directory: drivers/sh/intc
#include <linux/sh_intc.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/list.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/radix-tree.h>
#include <linux/device.h>


#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
	((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
         ((addr_e) << 16) | ((addr_d << 24)))


#define _INTC_SHIFT(h)		(h & 0x1f)

#define _INTC_WIDTH(h)		((h >> 5) & 0xf)

#define _INTC_FN(h)		((h >> 9) & 0xf)

#define _INTC_MODE(h)		((h >> 13) & 0x7)

#define _INTC_ADDR_E(h)		((h >> 16) & 0xff)

#define _INTC_ADDR_D(h)		((h >> 24) & 0xff)

#ifdef CONFIG_SMP

#define IS_SMP(x)		(x.smp)

#define INTC_REG(d, x, c)	(d->reg[(x)] + ((d->smp[(x)] & 0xff) * c))

#define SMP_NR(d, x)		((d->smp[(x)] >> 8) ? (d->smp[(x)] >> 8) : 1)
#else

#define IS_SMP(x)		0

#define INTC_REG(d, x, c)	(d->reg[(x)])

#define SMP_NR(d, x)		1
#endif


struct intc_handle_int {
	
unsigned int irq;
	
unsigned long handle;
};


struct intc_window {
	
phys_addr_t phys;
	
void __iomem *virt;
	
unsigned long size;
};


struct intc_map_entry {
	
intc_enum enum_id;
	
struct intc_desc_int *desc;
};


struct intc_subgroup_entry {
	
unsigned int pirq;
	
intc_enum enum_id;
	
unsigned long handle;
};


struct intc_desc_int {
	
struct list_head list;
	
struct device dev;
	
struct radix_tree_root tree;
	
raw_spinlock_t lock;
	
unsigned int index;
	
unsigned long *reg;
#ifdef CONFIG_SMP
	
unsigned long *smp;
#endif
	
unsigned int nr_reg;
	
struct intc_handle_int *prio;
	
unsigned int nr_prio;
	
struct intc_handle_int *sense;
	
unsigned int nr_sense;
	
struct intc_window *window;
	
unsigned int nr_windows;
	
struct irq_domain *domain;
	
struct irq_chip chip;
	
bool skip_suspend;
};


enum {
	
REG_FN_ERR = 0,
	
REG_FN_TEST_BASE = 1,
	
REG_FN_WRITE_BASE = 5,
	
REG_FN_MODIFY_BASE = 9
};


enum {	MODE_ENABLE_REG = 0, /* Bit(s) set -> interrupt enabled */
	
MODE_MASK_REG,       /* Bit(s) set -> interrupt disabled */
	
MODE_DUAL_REG,       /* Two registers, set bit to enable / disable */
	
MODE_PRIO_REG,       /* Priority value written to enable interrupt */
	
MODE_PCLR_REG,       /* Above plus all bits set to disable interrupt */
};


static inline struct intc_desc_int *get_intc_desc(unsigned int irq) { struct irq_chip *chip = irq_get_chip(irq); return container_of(chip, struct intc_desc_int, chip); }

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/* * Grumble. */
static inline void activate_irq(int irq) { irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE); }

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static inline int intc_handle_int_cmp(const void *a, const void *b) { const struct intc_handle_int *_a = a; const struct intc_handle_int *_b = b; return _a->irq - _b->irq; }

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/* access.c */ extern unsigned long (*intc_reg_fns[])(unsigned long addr, unsigned long h, unsigned long data); extern unsigned long (*intc_enable_fns[])(unsigned long addr, unsigned long handle, unsigned long (*fn)(unsigned long, unsigned long, unsigned long), unsigned int irq); extern unsigned long (*intc_disable_fns[])(unsigned long addr, unsigned long handle, unsigned long (*fn)(unsigned long, unsigned long, unsigned long), unsigned int irq); extern unsigned long (*intc_enable_noprio_fns[])(unsigned long addr, unsigned long handle, unsigned long (*fn)(unsigned long, unsigned long, unsigned long), unsigned int irq); unsigned long intc_phys_to_virt(struct intc_desc_int *d, unsigned long address); unsigned int intc_get_reg(struct intc_desc_int *d, unsigned long address); unsigned int intc_set_field_from_handle(unsigned int value, unsigned int field_value, unsigned int handle); unsigned long intc_get_field_from_handle(unsigned int value, unsigned int handle); /* balancing.c */ #ifdef CONFIG_INTC_BALANCING void intc_balancing_enable(unsigned int irq); void intc_balancing_disable(unsigned int irq); void intc_set_dist_handle(unsigned int irq, struct intc_desc *desc, struct intc_desc_int *d, intc_enum id); #else
static inline void intc_balancing_enable(unsigned int irq) { }

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static inline void intc_balancing_disable(unsigned int irq) { }

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static inline void intc_set_dist_handle(unsigned int irq, struct intc_desc *desc, struct intc_desc_int *d, intc_enum id) { }

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#endif /* chip.c */ extern struct irq_chip intc_irq_chip; void _intc_enable(struct irq_data *data, unsigned long handle); /* core.c */ extern struct list_head intc_list; extern raw_spinlock_t intc_big_lock; extern struct bus_type intc_subsys; unsigned int intc_get_dfl_prio_level(void); unsigned int intc_get_prio_level(unsigned int irq); void intc_set_prio_level(unsigned int irq, unsigned int level); /* handle.c */ unsigned int intc_get_mask_handle(struct intc_desc *desc, struct intc_desc_int *d, intc_enum enum_id, int do_grps); unsigned int intc_get_prio_handle(struct intc_desc *desc, struct intc_desc_int *d, intc_enum enum_id, int do_grps); unsigned int intc_get_sense_handle(struct intc_desc *desc, struct intc_desc_int *d, intc_enum enum_id); void intc_set_ack_handle(unsigned int irq, struct intc_desc *desc, struct intc_desc_int *d, intc_enum id); unsigned long intc_get_ack_handle(unsigned int irq); void intc_enable_disable_enum(struct intc_desc *desc, struct intc_desc_int *d, intc_enum enum_id, int enable); /* irqdomain.c */ void intc_irq_domain_init(struct intc_desc_int *d, struct intc_hw_desc *hw); /* virq.c */ void intc_subgroup_init(struct intc_desc *desc, struct intc_desc_int *d); void intc_irq_xlate_set(unsigned int irq, intc_enum id, struct intc_desc_int *d); struct intc_map_entry *intc_irq_xlate_get(unsigned int irq);

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Rafael J. Wysocki30.32%111.11%
Thomas Gleixner10.11%111.11%
Total934100.00%9100.00%
Directory: drivers/sh/intc
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