kernel/include/linux/irqchip/arm-gic.h

   1 /*
   2  *  include/linux/irqchip/arm-gic.h
   3  *
   4  *  Copyright (C) 2002 ARM Limited, All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef __LINUX_IRQCHIP_ARM_GIC_H
  11 #define __LINUX_IRQCHIP_ARM_GIC_H
  12
  13 #define GIC_CPU_CTRL                    0x00
  14 #define GIC_CPU_PRIMASK                 0x04
  15 #define GIC_CPU_BINPOINT                0x08
  16 #define GIC_CPU_INTACK                  0x0c
  17 #define GIC_CPU_EOI                     0x10
  18 #define GIC_CPU_RUNNINGPRI              0x14
  19 #define GIC_CPU_HIGHPRI                 0x18
  20 #define GIC_CPU_ALIAS_BINPOINT          0x1c
  21 #define GIC_CPU_ACTIVEPRIO              0xd0
  22 #define GIC_CPU_IDENT                   0xfc
  23
  24 #define GICC_ENABLE                     0x1
  25 #define GICC_INT_PRI_THRESHOLD          0xf0
  26 #define GICC_IAR_INT_ID_MASK            0x3ff
  27 #define GICC_INT_SPURIOUS               1023
  28 #define GICC_DIS_BYPASS_MASK            0x1e0
  29
  30 #define GIC_DIST_CTRL                   0x000
  31 #define GIC_DIST_CTR                    0x004
  32 #define GIC_DIST_IGROUP                 0x080
  33 #define GIC_DIST_ENABLE_SET             0x100
  34 #define GIC_DIST_ENABLE_CLEAR           0x180
  35 #define GIC_DIST_PENDING_SET            0x200
  36 #define GIC_DIST_PENDING_CLEAR          0x280
  37 #define GIC_DIST_ACTIVE_SET             0x300
  38 #define GIC_DIST_ACTIVE_CLEAR           0x380
  39 #define GIC_DIST_PRI                    0x400
  40 #define GIC_DIST_TARGET                 0x800
  41 #define GIC_DIST_CONFIG                 0xc00
  42 #define GIC_DIST_SOFTINT                0xf00
  43 #define GIC_DIST_SGI_PENDING_CLEAR      0xf10
  44 #define GIC_DIST_SGI_PENDING_SET        0xf20
  45
  46 #define GICD_ENABLE                     0x1
  47 #define GICD_DISABLE                    0x0
  48 #define GICD_INT_ACTLOW_LVLTRIG         0x0
  49 #define GICD_INT_EN_CLR_X32             0xffffffff
  50 #define GICD_INT_EN_SET_SGI             0x0000ffff
  51 #define GICD_INT_EN_CLR_PPI             0xffff0000
  52 #define GICD_INT_DEF_PRI                0xa0
  53 #define GICD_INT_DEF_PRI_X4             ((GICD_INT_DEF_PRI << 24) |\
  54                                         (GICD_INT_DEF_PRI << 16) |\
  55                                         (GICD_INT_DEF_PRI << 8) |\
  56                                         GICD_INT_DEF_PRI)
  57
  58 #define GICH_HCR                        0x0
  59 #define GICH_VTR                        0x4
  60 #define GICH_VMCR                       0x8
  61 #define GICH_MISR                       0x10
  62 #define GICH_EISR0                      0x20
  63 #define GICH_EISR1                      0x24
  64 #define GICH_ELRSR0                     0x30
  65 #define GICH_ELRSR1                     0x34
  66 #define GICH_APR                        0xf0
  67 #define GICH_LR0                        0x100
  68
  69 #define GICH_HCR_EN                     (1 << 0)
  70 #define GICH_HCR_UIE                    (1 << 1)
  71
  72 #define GICH_LR_VIRTUALID               (0x3ff << 0)
  73 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
  74 #define GICH_LR_PHYSID_CPUID            (7 << GICH_LR_PHYSID_CPUID_SHIFT)
  75 #define GICH_LR_STATE                   (3 << 28)
  76 #define GICH_LR_PENDING_BIT             (1 << 28)
  77 #define GICH_LR_ACTIVE_BIT              (1 << 29)
  78 #define GICH_LR_EOI                     (1 << 19)
  79
  80 #define GICH_VMCR_CTRL_SHIFT            0
  81 #define GICH_VMCR_CTRL_MASK             (0x21f << GICH_VMCR_CTRL_SHIFT)
  82 #define GICH_VMCR_PRIMASK_SHIFT         27
  83 #define GICH_VMCR_PRIMASK_MASK          (0x1f << GICH_VMCR_PRIMASK_SHIFT)
  84 #define GICH_VMCR_BINPOINT_SHIFT        21
  85 #define GICH_VMCR_BINPOINT_MASK         (0x7 << GICH_VMCR_BINPOINT_SHIFT)
  86 #define GICH_VMCR_ALIAS_BINPOINT_SHIFT  18
  87 #define GICH_VMCR_ALIAS_BINPOINT_MASK   (0x7 << GICH_VMCR_ALIAS_BINPOINT_SHIFT)
  88
  89 #define GICH_MISR_EOI                   (1 << 0)
  90 #define GICH_MISR_U                     (1 << 1)
  91
  92 #ifndef __ASSEMBLY__
  93
  94 #include <linux/irqdomain.h>
  95
  96 struct device_node;
  97
  98 void gic_set_irqchip_flags(unsigned long flags);
  99 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
 100                     u32 offset, struct device_node *);
 101 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
 102 void gic_cpu_if_down(void);
 103
 104 static inline void gic_init(unsigned int nr, int start,
 105                             void __iomem *dist , void __iomem *cpu)
 106 {
 107         gic_init_bases(nr, start, dist, cpu, 0, NULL);
 108 }
 109
 110 int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
 111
 112 void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
 113 int gic_get_cpu_id(unsigned int cpu);
 114 void gic_migrate_target(unsigned int new_cpu_id);
 115 unsigned long gic_get_sgir_physaddr(void);
 116
 117 #endif /* __ASSEMBLY */
 118 #endif