xref: /openbmc/qemu/include/hw/acpi/ich9.h (revision 2df1eb27)
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 
50     qemu_irq irq;      /* SCI */
51 
52     uint32_t pm_io_base;
53     Notifier powerdown_notifier;
54 
55     bool cpu_hotplug_legacy;
56     AcpiCpuHotplug gpe_cpu;
57     CPUHotplugState cpuhp_state;
58 
59     bool keep_pci_slot_hpc;
60     bool use_acpi_hotplug_bridge;
61     AcpiPciHpState acpi_pci_hotplug;
62     MemHotplugState acpi_memory_hotplug;
63 
64     uint8_t disable_s3;
65     uint8_t disable_s4;
66     uint8_t s4_val;
67     bool smm_enabled;
68     bool smm_compat;
69     bool enable_tco;
70     TCOIORegs tco_regs;
71 } ICH9LPCPMRegs;
72 
73 #define ACPI_PM_PROP_TCO_ENABLED "enable_tco"
74 
75 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm, qemu_irq sci_irq);
76 
77 void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
78 extern const VMStateDescription vmstate_ich9_pm;
79 
80 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm);
81 
82 void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
83                                 Error **errp);
84 void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
85                             Error **errp);
86 void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
87                                       DeviceState *dev, Error **errp);
88 void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
89                               Error **errp);
90 bool ich9_pm_is_hotpluggable_bus(HotplugHandler *hotplug_dev, BusState *bus);
91 
92 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
93 #endif /* HW_ACPI_ICH9_H */
94