include/linux/irqchip/riscv-aplic.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2021 Western Digital Corporation or its affiliates.
   4  * Copyright (C) 2022 Ventana Micro Systems Inc.
   5  */
   6 #ifndef __LINUX_IRQCHIP_RISCV_APLIC_H
   7 #define __LINUX_IRQCHIP_RISCV_APLIC_H
   8
   9 #include <linux/bitops.h>
  10
  11 #define APLIC_MAX_IDC                   BIT(14)
  12 #define APLIC_MAX_SOURCE                1024
  13
  14 #define APLIC_DOMAINCFG                 0x0000
  15 #define APLIC_DOMAINCFG_RDONLY          0x80000000
  16 #define APLIC_DOMAINCFG_IE              BIT(8)
  17 #define APLIC_DOMAINCFG_DM              BIT(2)
  18 #define APLIC_DOMAINCFG_BE              BIT(0)
  19
  20 #define APLIC_SOURCECFG_BASE            0x0004
  21 #define APLIC_SOURCECFG_D               BIT(10)
  22 #define APLIC_SOURCECFG_CHILDIDX_MASK   0x000003ff
  23 #define APLIC_SOURCECFG_SM_MASK 0x00000007
  24 #define APLIC_SOURCECFG_SM_INACTIVE     0x0
  25 #define APLIC_SOURCECFG_SM_DETACH       0x1
  26 #define APLIC_SOURCECFG_SM_EDGE_RISE    0x4
  27 #define APLIC_SOURCECFG_SM_EDGE_FALL    0x5
  28 #define APLIC_SOURCECFG_SM_LEVEL_HIGH   0x6
  29 #define APLIC_SOURCECFG_SM_LEVEL_LOW    0x7
  30
  31 #define APLIC_MMSICFGADDR               0x1bc0
  32 #define APLIC_MMSICFGADDRH              0x1bc4
  33 #define APLIC_SMSICFGADDR               0x1bc8
  34 #define APLIC_SMSICFGADDRH              0x1bcc
  35
  36 #ifdef CONFIG_RISCV_M_MODE
  37 #define APLIC_xMSICFGADDR               APLIC_MMSICFGADDR
  38 #define APLIC_xMSICFGADDRH              APLIC_MMSICFGADDRH
  39 #else
  40 #define APLIC_xMSICFGADDR               APLIC_SMSICFGADDR
  41 #define APLIC_xMSICFGADDRH              APLIC_SMSICFGADDRH
  42 #endif
  43
  44 #define APLIC_xMSICFGADDRH_L            BIT(31)
  45 #define APLIC_xMSICFGADDRH_HHXS_MASK    0x1f
  46 #define APLIC_xMSICFGADDRH_HHXS_SHIFT   24
  47 #define APLIC_xMSICFGADDRH_HHXS         (APLIC_xMSICFGADDRH_HHXS_MASK << \
  48                                          APLIC_xMSICFGADDRH_HHXS_SHIFT)
  49 #define APLIC_xMSICFGADDRH_LHXS_MASK    0x7
  50 #define APLIC_xMSICFGADDRH_LHXS_SHIFT   20
  51 #define APLIC_xMSICFGADDRH_LHXS         (APLIC_xMSICFGADDRH_LHXS_MASK << \
  52                                          APLIC_xMSICFGADDRH_LHXS_SHIFT)
  53 #define APLIC_xMSICFGADDRH_HHXW_MASK    0x7
  54 #define APLIC_xMSICFGADDRH_HHXW_SHIFT   16
  55 #define APLIC_xMSICFGADDRH_HHXW         (APLIC_xMSICFGADDRH_HHXW_MASK << \
  56                                          APLIC_xMSICFGADDRH_HHXW_SHIFT)
  57 #define APLIC_xMSICFGADDRH_LHXW_MASK    0xf
  58 #define APLIC_xMSICFGADDRH_LHXW_SHIFT   12
  59 #define APLIC_xMSICFGADDRH_LHXW         (APLIC_xMSICFGADDRH_LHXW_MASK << \
  60                                          APLIC_xMSICFGADDRH_LHXW_SHIFT)
  61 #define APLIC_xMSICFGADDRH_BAPPN_MASK   0xfff
  62 #define APLIC_xMSICFGADDRH_BAPPN_SHIFT  0
  63 #define APLIC_xMSICFGADDRH_BAPPN        (APLIC_xMSICFGADDRH_BAPPN_MASK << \
  64                                          APLIC_xMSICFGADDRH_BAPPN_SHIFT)
  65
  66 #define APLIC_xMSICFGADDR_PPN_SHIFT     12
  67
  68 #define APLIC_xMSICFGADDR_PPN_HART(__lhxs) \
  69         (BIT(__lhxs) - 1)
  70
  71 #define APLIC_xMSICFGADDR_PPN_LHX_MASK(__lhxw) \
  72         (BIT(__lhxw) - 1)
  73 #define APLIC_xMSICFGADDR_PPN_LHX_SHIFT(__lhxs) \
  74         ((__lhxs))
  75 #define APLIC_xMSICFGADDR_PPN_LHX(__lhxw, __lhxs) \
  76         (APLIC_xMSICFGADDR_PPN_LHX_MASK(__lhxw) << \
  77          APLIC_xMSICFGADDR_PPN_LHX_SHIFT(__lhxs))
  78
  79 #define APLIC_xMSICFGADDR_PPN_HHX_MASK(__hhxw) \
  80         (BIT(__hhxw) - 1)
  81 #define APLIC_xMSICFGADDR_PPN_HHX_SHIFT(__hhxs) \
  82         ((__hhxs) + APLIC_xMSICFGADDR_PPN_SHIFT)
  83 #define APLIC_xMSICFGADDR_PPN_HHX(__hhxw, __hhxs) \
  84         (APLIC_xMSICFGADDR_PPN_HHX_MASK(__hhxw) << \
  85          APLIC_xMSICFGADDR_PPN_HHX_SHIFT(__hhxs))
  86
  87 #define APLIC_IRQBITS_PER_REG           32
  88
  89 #define APLIC_SETIP_BASE                0x1c00
  90 #define APLIC_SETIPNUM                  0x1cdc
  91
  92 #define APLIC_CLRIP_BASE                0x1d00
  93 #define APLIC_CLRIPNUM                  0x1ddc
  94
  95 #define APLIC_SETIE_BASE                0x1e00
  96 #define APLIC_SETIENUM                  0x1edc
  97
  98 #define APLIC_CLRIE_BASE                0x1f00
  99 #define APLIC_CLRIENUM                  0x1fdc
 100
 101 #define APLIC_SETIPNUM_LE               0x2000
 102 #define APLIC_SETIPNUM_BE               0x2004
 103
 104 #define APLIC_GENMSI                    0x3000
 105
 106 #define APLIC_TARGET_BASE               0x3004
 107 #define APLIC_TARGET_HART_IDX_SHIFT     18
 108 #define APLIC_TARGET_HART_IDX_MASK      0x3fff
 109 #define APLIC_TARGET_HART_IDX           (APLIC_TARGET_HART_IDX_MASK << \
 110                                          APLIC_TARGET_HART_IDX_SHIFT)
 111 #define APLIC_TARGET_GUEST_IDX_SHIFT    12
 112 #define APLIC_TARGET_GUEST_IDX_MASK     0x3f
 113 #define APLIC_TARGET_GUEST_IDX          (APLIC_TARGET_GUEST_IDX_MASK << \
 114                                          APLIC_TARGET_GUEST_IDX_SHIFT)
 115 #define APLIC_TARGET_IPRIO_SHIFT        0
 116 #define APLIC_TARGET_IPRIO_MASK         0xff
 117 #define APLIC_TARGET_IPRIO              (APLIC_TARGET_IPRIO_MASK << \
 118                                          APLIC_TARGET_IPRIO_SHIFT)
 119 #define APLIC_TARGET_EIID_SHIFT         0
 120 #define APLIC_TARGET_EIID_MASK          0x7ff
 121 #define APLIC_TARGET_EIID               (APLIC_TARGET_EIID_MASK << \
 122                                          APLIC_TARGET_EIID_SHIFT)
 123
 124 #define APLIC_IDC_BASE                  0x4000
 125 #define APLIC_IDC_SIZE                  32
 126
 127 #define APLIC_IDC_IDELIVERY             0x00
 128
 129 #define APLIC_IDC_IFORCE                0x04
 130
 131 #define APLIC_IDC_ITHRESHOLD            0x08
 132
 133 #define APLIC_IDC_TOPI                  0x18
 134 #define APLIC_IDC_TOPI_ID_SHIFT         16
 135 #define APLIC_IDC_TOPI_ID_MASK          0x3ff
 136 #define APLIC_IDC_TOPI_ID               (APLIC_IDC_TOPI_ID_MASK << \
 137                                          APLIC_IDC_TOPI_ID_SHIFT)
 138 #define APLIC_IDC_TOPI_PRIO_SHIFT       0
 139 #define APLIC_IDC_TOPI_PRIO_MASK        0xff
 140 #define APLIC_IDC_TOPI_PRIO             (APLIC_IDC_TOPI_PRIO_MASK << \
 141                                          APLIC_IDC_TOPI_PRIO_SHIFT)
 142
 143 #define APLIC_IDC_CLAIMI                0x1c
 144
 145 #endif