xref: /openbmc/qemu/include/hw/acpi/ich9.h (revision 3baa3c9d62bb35904cf6dadbf152922d87f06e8f)
1  /*
2   * QEMU GMCH/ICH9 LPC PM Emulation
3   *
4   *  Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
5   *                     VA Linux Systems Japan K.K.
6   *
7   * This library is free software; you can redistribute it and/or
8   * modify it under the terms of the GNU Lesser General Public
9   * License as published by the Free Software Foundation; either
10   * version 2.1 of the License, or (at your option) any later version.
11   *
12   * This library is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this library; if not, see <http://www.gnu.org/licenses/>
19   */
20  
21  #ifndef HW_ACPI_ICH9_H
22  #define HW_ACPI_ICH9_H
23  
24  #include "hw/acpi/acpi.h"
25  #include "hw/acpi/cpu_hotplug.h"
26  #include "hw/acpi/cpu.h"
27  #include "hw/acpi/pcihp.h"
28  #include "hw/acpi/memory_hotplug.h"
29  #include "hw/acpi/acpi_dev_interface.h"
30  #include "hw/acpi/ich9_tco.h"
31  
32  #define ACPI_PCIHP_ADDR_ICH9 0x0cc0
33  
34  typedef struct ICH9LPCPMRegs {
35      /*
36       * In ich9 spec says that pm1_cnt register is 32bit width and
37       * that the upper 16bits are reserved and unused.
38       * PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
39       */
40      ACPIREGS acpi_regs;
41  
42      MemoryRegion io;
43      MemoryRegion io_gpe;
44      MemoryRegion io_smi;
45  
46      uint32_t smi_en;
47      uint32_t smi_en_wmask;
48      uint32_t smi_sts;
49      uint32_t smi_sts_wmask;
50  
51      qemu_irq irq;      /* SCI */
52  
53      uint32_t pm_io_base;
54      Notifier powerdown_notifier;
55  
56      bool cpu_hotplug_legacy;
57      AcpiCpuHotplug gpe_cpu;
58      CPUHotplugState cpuhp_state;
59  
60      bool keep_pci_slot_hpc;
61      bool use_acpi_hotplug_bridge;
62      AcpiPciHpState acpi_pci_hotplug;
63      MemHotplugState acpi_memory_hotplug;
64  
65      uint8_t disable_s3;
66      uint8_t disable_s4;
67      uint8_t s4_val;
68      bool smm_enabled;
69      bool smm_compat;
70      bool enable_tco;
71      TCOIORegs tco_regs;
72  
73      bool swsmi_timer_enabled;
74      bool periodic_timer_enabled;
75      QEMUTimer *swsmi_timer;
76      QEMUTimer *periodic_timer;
77  } ICH9LPCPMRegs;
78  
79  #define ACPI_PM_PROP_TCO_ENABLED "enable_tco"
80  
81  void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm, qemu_irq sci_irq);
82  
83  void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
84  extern const VMStateDescription vmstate_ich9_pm;
85  
86  void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm);
87  
88  void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
89                                  Error **errp);
90  void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
91                              Error **errp);
92  void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
93                                        DeviceState *dev, Error **errp);
94  void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
95                                Error **errp);
96  bool ich9_pm_is_hotpluggable_bus(HotplugHandler *hotplug_dev, BusState *bus);
97  
98  void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
99  #endif /* HW_ACPI_ICH9_H */
100