include/hw/ppc/pnv_chiptod.h

   1 /*
   2  * QEMU PowerPC PowerNV Emulation of some CHIPTOD behaviour
   3  *
   4  * Copyright (c) 2022-2023, IBM Corporation.
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #ifndef PPC_PNV_CHIPTOD_H
  10 #define PPC_PNV_CHIPTOD_H
  11
  12 #include "qom/object.h"
  13
  14 #define TYPE_PNV_CHIPTOD "pnv-chiptod"
  15 OBJECT_DECLARE_TYPE(PnvChipTOD, PnvChipTODClass, PNV_CHIPTOD)
  16 #define TYPE_PNV9_CHIPTOD TYPE_PNV_CHIPTOD "-POWER9"
  17 DECLARE_INSTANCE_CHECKER(PnvChipTOD, PNV9_CHIPTOD, TYPE_PNV9_CHIPTOD)
  18 #define TYPE_PNV10_CHIPTOD TYPE_PNV_CHIPTOD "-POWER10"
  19 DECLARE_INSTANCE_CHECKER(PnvChipTOD, PNV10_CHIPTOD, TYPE_PNV10_CHIPTOD)
  20
  21 enum tod_state {
  22     tod_error = 0,
  23     tod_not_set = 7,
  24     tod_running = 2,
  25     tod_stopped = 1,
  26 };
  27
  28 typedef struct PnvCore PnvCore;
  29
  30 struct PnvChipTOD {
  31     DeviceState xd;
  32
  33     PnvChip *chip;
  34     MemoryRegion xscom_regs;
  35
  36     bool primary;
  37     bool secondary;
  38     enum tod_state tod_state;
  39     uint64_t tod_error;
  40     uint64_t pss_mss_ctrl_reg;
  41     PnvCore *slave_pc_target;
  42 };
  43
  44 struct PnvChipTODClass {
  45     DeviceClass parent_class;
  46
  47     void (*broadcast_ttype)(PnvChipTOD *sender, uint32_t trigger);
  48     PnvCore *(*tx_ttype_target)(PnvChipTOD *chiptod, uint64_t val);
  49
  50     int xscom_size;
  51 };
  52
  53 #endif /* PPC_PNV_CHIPTOD_H */