1 #ifndef QEMU_HW_ACPI_H 2 #define QEMU_HW_ACPI_H 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 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 19 * <http://www.gnu.org/licenses/>. 20 */ 21 22 #include "qemu/typedefs.h" 23 #include "qemu/notify.h" 24 #include "qemu/option.h" 25 #include "exec/memory.h" 26 #include "hw/irq.h" 27 28 /* 29 * current device naming scheme supports up to 256 memory devices 30 */ 31 #define ACPI_MAX_RAM_SLOTS 256 32 33 /* from linux include/acpi/actype.h */ 34 /* Default ACPI register widths */ 35 36 #define ACPI_GPE_REGISTER_WIDTH 8 37 #define ACPI_PM1_REGISTER_WIDTH 16 38 #define ACPI_PM2_REGISTER_WIDTH 8 39 #define ACPI_PM_TIMER_WIDTH 32 40 41 /* PM Timer ticks per second (HZ) */ 42 #define PM_TIMER_FREQUENCY 3579545 43 44 45 /* ACPI fixed hardware registers */ 46 47 /* from linux/drivers/acpi/acpica/aclocal.h */ 48 /* Masks used to access the bit_registers */ 49 50 /* PM1x_STS */ 51 #define ACPI_BITMASK_TIMER_STATUS 0x0001 52 #define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010 53 #define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020 54 #define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100 55 #define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200 56 #define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400 57 #define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */ 58 #define ACPI_BITMASK_WAKE_STATUS 0x8000 59 60 #define ACPI_BITMASK_ALL_FIXED_STATUS (\ 61 ACPI_BITMASK_TIMER_STATUS | \ 62 ACPI_BITMASK_BUS_MASTER_STATUS | \ 63 ACPI_BITMASK_GLOBAL_LOCK_STATUS | \ 64 ACPI_BITMASK_POWER_BUTTON_STATUS | \ 65 ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ 66 ACPI_BITMASK_RT_CLOCK_STATUS | \ 67 ACPI_BITMASK_WAKE_STATUS) 68 69 /* PM1x_EN */ 70 #define ACPI_BITMASK_TIMER_ENABLE 0x0001 71 #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE 0x0020 72 #define ACPI_BITMASK_POWER_BUTTON_ENABLE 0x0100 73 #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE 0x0200 74 #define ACPI_BITMASK_RT_CLOCK_ENABLE 0x0400 75 #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE 0x4000 /* ACPI 3.0 */ 76 77 #define ACPI_BITMASK_PM1_COMMON_ENABLED ( \ 78 ACPI_BITMASK_RT_CLOCK_ENABLE | \ 79 ACPI_BITMASK_POWER_BUTTON_ENABLE | \ 80 ACPI_BITMASK_GLOBAL_LOCK_ENABLE | \ 81 ACPI_BITMASK_TIMER_ENABLE) 82 83 /* PM1x_CNT */ 84 #define ACPI_BITMASK_SCI_ENABLE 0x0001 85 #define ACPI_BITMASK_BUS_MASTER_RLD 0x0002 86 #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE 0x0004 87 #define ACPI_BITMASK_SLEEP_TYPE 0x1C00 88 #define ACPI_BITMASK_SLEEP_ENABLE 0x2000 89 90 /* PM2_CNT */ 91 #define ACPI_BITMASK_ARB_DISABLE 0x0001 92 93 /* These values are part of guest ABI, and can not be changed */ 94 typedef enum { 95 ACPI_PCI_HOTPLUG_STATUS = 2, 96 ACPI_CPU_HOTPLUG_STATUS = 4, 97 ACPI_MEMORY_HOTPLUG_STATUS = 8, 98 } AcpiGPEStatusBits; 99 100 /* structs */ 101 typedef struct ACPIPMTimer ACPIPMTimer; 102 typedef struct ACPIPM1EVT ACPIPM1EVT; 103 typedef struct ACPIPM1CNT ACPIPM1CNT; 104 typedef struct ACPIGPE ACPIGPE; 105 typedef struct ACPIREGS ACPIREGS; 106 107 typedef void (*acpi_update_sci_fn)(ACPIREGS *ar); 108 109 struct ACPIPMTimer { 110 QEMUTimer *timer; 111 MemoryRegion io; 112 int64_t overflow_time; 113 114 acpi_update_sci_fn update_sci; 115 }; 116 117 struct ACPIPM1EVT { 118 MemoryRegion io; 119 uint16_t sts; 120 uint16_t en; 121 acpi_update_sci_fn update_sci; 122 }; 123 124 struct ACPIPM1CNT { 125 MemoryRegion io; 126 uint16_t cnt; 127 uint8_t s4_val; 128 }; 129 130 struct ACPIGPE { 131 uint8_t len; 132 133 uint8_t *sts; 134 uint8_t *en; 135 }; 136 137 struct ACPIREGS { 138 ACPIPMTimer tmr; 139 ACPIGPE gpe; 140 struct { 141 ACPIPM1EVT evt; 142 ACPIPM1CNT cnt; 143 } pm1; 144 Notifier wakeup; 145 }; 146 147 /* PM_TMR */ 148 void acpi_pm_tmr_update(ACPIREGS *ar, bool enable); 149 void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar); 150 void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 151 MemoryRegion *parent); 152 void acpi_pm_tmr_reset(ACPIREGS *ar); 153 154 #include "qemu/timer.h" 155 static inline int64_t acpi_pm_tmr_get_clock(void) 156 { 157 return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), PM_TIMER_FREQUENCY, 158 get_ticks_per_sec()); 159 } 160 161 /* PM1a_EVT: piix and ich9 don't implement PM1b. */ 162 uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar); 163 void acpi_pm1_evt_power_down(ACPIREGS *ar); 164 void acpi_pm1_evt_reset(ACPIREGS *ar); 165 void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 166 MemoryRegion *parent); 167 168 /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */ 169 void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, 170 bool disable_s3, bool disable_s4, uint8_t s4_val); 171 void acpi_pm1_cnt_update(ACPIREGS *ar, 172 bool sci_enable, bool sci_disable); 173 void acpi_pm1_cnt_reset(ACPIREGS *ar); 174 175 /* GPE0 */ 176 void acpi_gpe_init(ACPIREGS *ar, uint8_t len); 177 void acpi_gpe_reset(ACPIREGS *ar); 178 179 void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val); 180 uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr); 181 182 void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq, 183 AcpiGPEStatusBits status); 184 185 void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); 186 187 /* acpi.c */ 188 extern int acpi_enabled; 189 extern char unsigned *acpi_tables; 190 extern size_t acpi_tables_len; 191 192 uint8_t *acpi_table_first(void); 193 uint8_t *acpi_table_next(uint8_t *current); 194 unsigned acpi_table_len(void *current); 195 void acpi_table_add(const QemuOpts *opts, Error **errp); 196 void acpi_table_add_builtin(const QemuOpts *opts, Error **errp); 197 198 typedef struct AcpiSlicOem AcpiSlicOem; 199 struct AcpiSlicOem { 200 char *id; 201 char *table_id; 202 }; 203 int acpi_get_slic_oem(AcpiSlicOem *oem); 204 205 #endif /* !QEMU_HW_ACPI_H */ 206