cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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of_irq.h (3843B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __OF_IRQ_H
      3#define __OF_IRQ_H
      4
      5#include <linux/types.h>
      6#include <linux/errno.h>
      7#include <linux/irq.h>
      8#include <linux/irqdomain.h>
      9#include <linux/ioport.h>
     10#include <linux/of.h>
     11
     12typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
     13
     14/*
     15 * Workarounds only applied to 32bit powermac machines
     16 */
     17#define OF_IMAP_OLDWORLD_MAC	0x00000001
     18#define OF_IMAP_NO_PHANDLE	0x00000002
     19
     20#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
     21extern unsigned int of_irq_workarounds;
     22extern struct device_node *of_irq_dflt_pic;
     23int of_irq_parse_oldworld(const struct device_node *device, int index,
     24			  struct of_phandle_args *out_irq);
     25#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
     26#define of_irq_workarounds (0)
     27#define of_irq_dflt_pic (NULL)
     28static inline int of_irq_parse_oldworld(const struct device_node *device, int index,
     29				      struct of_phandle_args *out_irq)
     30{
     31	return -EINVAL;
     32}
     33#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
     34
     35extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
     36extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
     37extern int of_irq_to_resource(struct device_node *dev, int index,
     38			      struct resource *r);
     39
     40extern void of_irq_init(const struct of_device_id *matches);
     41
     42#ifdef CONFIG_OF_IRQ
     43extern int of_irq_parse_one(struct device_node *device, int index,
     44			  struct of_phandle_args *out_irq);
     45extern int of_irq_count(struct device_node *dev);
     46extern int of_irq_get(struct device_node *dev, int index);
     47extern int of_irq_get_byname(struct device_node *dev, const char *name);
     48extern int of_irq_to_resource_table(struct device_node *dev,
     49		struct resource *res, int nr_irqs);
     50extern struct device_node *of_irq_find_parent(struct device_node *child);
     51extern struct irq_domain *of_msi_get_domain(struct device *dev,
     52					    struct device_node *np,
     53					    enum irq_domain_bus_token token);
     54extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev,
     55							u32 id,
     56							u32 bus_token);
     57extern void of_msi_configure(struct device *dev, struct device_node *np);
     58u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in);
     59#else
     60static inline int of_irq_parse_one(struct device_node *device, int index,
     61				   struct of_phandle_args *out_irq)
     62{
     63	return -EINVAL;
     64}
     65static inline int of_irq_count(struct device_node *dev)
     66{
     67	return 0;
     68}
     69static inline int of_irq_get(struct device_node *dev, int index)
     70{
     71	return 0;
     72}
     73static inline int of_irq_get_byname(struct device_node *dev, const char *name)
     74{
     75	return 0;
     76}
     77static inline int of_irq_to_resource_table(struct device_node *dev,
     78					   struct resource *res, int nr_irqs)
     79{
     80	return 0;
     81}
     82static inline void *of_irq_find_parent(struct device_node *child)
     83{
     84	return NULL;
     85}
     86
     87static inline struct irq_domain *of_msi_get_domain(struct device *dev,
     88						   struct device_node *np,
     89						   enum irq_domain_bus_token token)
     90{
     91	return NULL;
     92}
     93static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev,
     94						u32 id, u32 bus_token)
     95{
     96	return NULL;
     97}
     98static inline void of_msi_configure(struct device *dev, struct device_node *np)
     99{
    100}
    101static inline u32 of_msi_map_id(struct device *dev,
    102				 struct device_node *msi_np, u32 id_in)
    103{
    104	return id_in;
    105}
    106#endif
    107
    108#if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC)
    109/*
    110 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
    111 * implements it differently.  However, the prototype is the same for all,
    112 * so declare it here regardless of the CONFIG_OF_IRQ setting.
    113 */
    114extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
    115
    116#else /* !CONFIG_OF && !CONFIG_SPARC */
    117static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
    118						int index)
    119{
    120	return 0;
    121}
    122#endif /* !CONFIG_OF */
    123
    124#endif /* __OF_IRQ_H */