include/linux/irqchip/irq-partition-percpu.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2016 ARM Limited, All Rights Reserved.
   4  * Author: Marc Zyngier <marc.zyngier@arm.com>
   5  */
   6
   7 #ifndef __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H
   8 #define __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H
   9
  10 #include <linux/fwnode.h>
  11 #include <linux/cpumask.h>
  12 #include <linux/irqdomain.h>
  13
  14 struct partition_affinity {
  15         cpumask_t                       mask;
  16         void                            *partition_id;
  17 };
  18
  19 struct partition_desc;
  20
  21 #ifdef CONFIG_PARTITION_PERCPU
  22 int partition_translate_id(struct partition_desc *desc, void *partition_id);
  23 struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode,
  24                                              struct partition_affinity *parts,
  25                                              int nr_parts,
  26                                              int chained_irq,
  27                                              const struct irq_domain_ops *ops);
  28 struct irq_domain *partition_get_domain(struct partition_desc *dsc);
  29 #else
  30 static inline int partition_translate_id(struct partition_desc *desc,
  31                                          void *partition_id)
  32 {
  33         return -EINVAL;
  34 }
  35
  36 static inline
  37 struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode,
  38                                              struct partition_affinity *parts,
  39                                              int nr_parts,
  40                                              int chained_irq,
  41                                              const struct irq_domain_ops *ops)
  42 {
  43         return NULL;
  44 }
  45
  46 static inline
  47 struct irq_domain *partition_get_domain(struct partition_desc *dsc)
  48 {
  49         return NULL;
  50 }
  51 #endif
  52
  53 #endif /* __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H */