xref: /openbmc/qemu/include/hw/acpi/ich9.h (revision 7d87775f)
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