1 #ifndef _ASM_X86_PLATFORM_H 2 #define _ASM_X86_PLATFORM_H 3 4 #include <asm/bootparam.h> 5 6 struct mpc_bus; 7 struct mpc_cpu; 8 struct mpc_table; 9 struct cpuinfo_x86; 10 11 /** 12 * struct x86_init_mpparse - platform specific mpparse ops 13 * @mpc_record: platform specific mpc record accounting 14 * @setup_ioapic_ids: platform specific ioapic id override 15 * @mpc_apic_id: platform specific mpc apic id assignment 16 * @smp_read_mpc_oem: platform specific oem mpc table setup 17 * @mpc_oem_pci_bus: platform specific pci bus setup (default NULL) 18 * @mpc_oem_bus_info: platform specific mpc bus info 19 * @find_smp_config: find the smp configuration 20 * @get_smp_config: get the smp configuration 21 */ 22 struct x86_init_mpparse { 23 void (*mpc_record)(unsigned int mode); 24 void (*setup_ioapic_ids)(void); 25 int (*mpc_apic_id)(struct mpc_cpu *m); 26 void (*smp_read_mpc_oem)(struct mpc_table *mpc); 27 void (*mpc_oem_pci_bus)(struct mpc_bus *m); 28 void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name); 29 void (*find_smp_config)(void); 30 void (*get_smp_config)(unsigned int early); 31 }; 32 33 /** 34 * struct x86_init_resources - platform specific resource related ops 35 * @probe_roms: probe BIOS roms 36 * @reserve_resources: reserve the standard resources for the 37 * platform 38 * @memory_setup: platform specific memory setup 39 * 40 */ 41 struct x86_init_resources { 42 void (*probe_roms)(void); 43 void (*reserve_resources)(void); 44 char *(*memory_setup)(void); 45 }; 46 47 /** 48 * struct x86_init_irqs - platform specific interrupt setup 49 * @pre_vector_init: init code to run before interrupt vectors 50 * are set up. 51 * @intr_init: interrupt init code 52 * @trap_init: platform specific trap setup 53 * @intr_mode_init: interrupt delivery mode setup 54 */ 55 struct x86_init_irqs { 56 void (*pre_vector_init)(void); 57 void (*intr_init)(void); 58 void (*trap_init)(void); 59 void (*intr_mode_init)(void); 60 }; 61 62 /** 63 * struct x86_init_oem - oem platform specific customizing functions 64 * @arch_setup: platform specific architecture setup 65 * @banner: print a platform specific banner 66 */ 67 struct x86_init_oem { 68 void (*arch_setup)(void); 69 void (*banner)(void); 70 }; 71 72 /** 73 * struct x86_init_paging - platform specific paging functions 74 * @pagetable_init: platform specific paging initialization call to setup 75 * the kernel pagetables and prepare accessors functions. 76 * Callback must call paging_init(). Called once after the 77 * direct mapping for phys memory is available. 78 */ 79 struct x86_init_paging { 80 void (*pagetable_init)(void); 81 }; 82 83 /** 84 * struct x86_init_timers - platform specific timer setup 85 * @setup_perpcu_clockev: set up the per cpu clock event device for the 86 * boot cpu 87 * @timer_init: initialize the platform timer (default PIT/HPET) 88 * @wallclock_init: init the wallclock device 89 */ 90 struct x86_init_timers { 91 void (*setup_percpu_clockev)(void); 92 void (*timer_init)(void); 93 void (*wallclock_init)(void); 94 }; 95 96 /** 97 * struct x86_init_iommu - platform specific iommu setup 98 * @iommu_init: platform specific iommu setup 99 */ 100 struct x86_init_iommu { 101 int (*iommu_init)(void); 102 }; 103 104 /** 105 * struct x86_init_pci - platform specific pci init functions 106 * @arch_init: platform specific pci arch init call 107 * @init: platform specific pci subsystem init 108 * @init_irq: platform specific pci irq init 109 * @fixup_irqs: platform specific pci irq fixup 110 */ 111 struct x86_init_pci { 112 int (*arch_init)(void); 113 int (*init)(void); 114 void (*init_irq)(void); 115 void (*fixup_irqs)(void); 116 }; 117 118 /** 119 * struct x86_init_ops - functions for platform specific setup 120 * 121 */ 122 struct x86_init_ops { 123 struct x86_init_resources resources; 124 struct x86_init_mpparse mpparse; 125 struct x86_init_irqs irqs; 126 struct x86_init_oem oem; 127 struct x86_init_paging paging; 128 struct x86_init_timers timers; 129 struct x86_init_iommu iommu; 130 struct x86_init_pci pci; 131 }; 132 133 /** 134 * struct x86_cpuinit_ops - platform specific cpu hotplug setups 135 * @setup_percpu_clockev: set up the per cpu clock event device 136 * @early_percpu_clock_init: early init of the per cpu clock event device 137 */ 138 struct x86_cpuinit_ops { 139 void (*setup_percpu_clockev)(void); 140 void (*early_percpu_clock_init)(void); 141 void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node); 142 }; 143 144 struct timespec; 145 146 /** 147 * struct x86_legacy_devices - legacy x86 devices 148 * 149 * @pnpbios: this platform can have a PNPBIOS. If this is disabled the platform 150 * is known to never have a PNPBIOS. 151 * 152 * These are devices known to require LPC or ISA bus. The definition of legacy 153 * devices adheres to the ACPI 5.2.9.3 IA-PC Boot Architecture flag 154 * ACPI_FADT_LEGACY_DEVICES. These devices consist of user visible devices on 155 * the LPC or ISA bus. User visible devices are devices that have end-user 156 * accessible connectors (for example, LPT parallel port). Legacy devices on 157 * the LPC bus consist for example of serial and parallel ports, PS/2 keyboard 158 * / mouse, and the floppy disk controller. A system that lacks all known 159 * legacy devices can assume all devices can be detected exclusively via 160 * standard device enumeration mechanisms including the ACPI namespace. 161 * 162 * A system which has does not have ACPI_FADT_LEGACY_DEVICES enabled must not 163 * have any of the legacy devices enumerated below present. 164 */ 165 struct x86_legacy_devices { 166 int pnpbios; 167 }; 168 169 /** 170 * enum x86_legacy_i8042_state - i8042 keyboard controller state 171 * @X86_LEGACY_I8042_PLATFORM_ABSENT: the controller is always absent on 172 * given platform/subarch. 173 * @X86_LEGACY_I8042_FIRMWARE_ABSENT: firmware reports that the controller 174 * is absent. 175 * @X86_LEGACY_i8042_EXPECTED_PRESENT: the controller is likely to be 176 * present, the i8042 driver should probe for controller existence. 177 */ 178 enum x86_legacy_i8042_state { 179 X86_LEGACY_I8042_PLATFORM_ABSENT, 180 X86_LEGACY_I8042_FIRMWARE_ABSENT, 181 X86_LEGACY_I8042_EXPECTED_PRESENT, 182 }; 183 184 /** 185 * struct x86_legacy_features - legacy x86 features 186 * 187 * @i8042: indicated if we expect the device to have i8042 controller 188 * present. 189 * @rtc: this device has a CMOS real-time clock present 190 * @reserve_bios_regions: boot code will search for the EBDA address and the 191 * start of the 640k - 1M BIOS region. If false, the platform must 192 * ensure that its memory map correctly reserves sub-1MB regions as needed. 193 * @devices: legacy x86 devices, refer to struct x86_legacy_devices 194 * documentation for further details. 195 */ 196 struct x86_legacy_features { 197 enum x86_legacy_i8042_state i8042; 198 int rtc; 199 int reserve_bios_regions; 200 struct x86_legacy_devices devices; 201 }; 202 203 /** 204 * struct x86_platform_ops - platform specific runtime functions 205 * @calibrate_cpu: calibrate CPU 206 * @calibrate_tsc: calibrate TSC, if different from CPU 207 * @get_wallclock: get time from HW clock like RTC etc. 208 * @set_wallclock: set time back to HW clock 209 * @is_untracked_pat_range exclude from PAT logic 210 * @nmi_init enable NMI on cpus 211 * @save_sched_clock_state: save state for sched_clock() on suspend 212 * @restore_sched_clock_state: restore state for sched_clock() on resume 213 * @apic_post_init: adjust apic if needed 214 * @legacy: legacy features 215 * @set_legacy_features: override legacy features. Use of this callback 216 * is highly discouraged. You should only need 217 * this if your hardware platform requires further 218 * custom fine tuning far beyond what may be 219 * possible in x86_early_init_platform_quirks() by 220 * only using the current x86_hardware_subarch 221 * semantics. 222 */ 223 struct x86_platform_ops { 224 unsigned long (*calibrate_cpu)(void); 225 unsigned long (*calibrate_tsc)(void); 226 void (*get_wallclock)(struct timespec *ts); 227 int (*set_wallclock)(const struct timespec *ts); 228 void (*iommu_shutdown)(void); 229 bool (*is_untracked_pat_range)(u64 start, u64 end); 230 void (*nmi_init)(void); 231 unsigned char (*get_nmi_reason)(void); 232 void (*save_sched_clock_state)(void); 233 void (*restore_sched_clock_state)(void); 234 void (*apic_post_init)(void); 235 struct x86_legacy_features legacy; 236 void (*set_legacy_features)(void); 237 }; 238 239 struct pci_dev; 240 241 struct x86_msi_ops { 242 int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); 243 void (*teardown_msi_irq)(unsigned int irq); 244 void (*teardown_msi_irqs)(struct pci_dev *dev); 245 void (*restore_msi_irqs)(struct pci_dev *dev); 246 }; 247 248 struct x86_io_apic_ops { 249 unsigned int (*read) (unsigned int apic, unsigned int reg); 250 void (*disable)(void); 251 }; 252 253 extern struct x86_init_ops x86_init; 254 extern struct x86_cpuinit_ops x86_cpuinit; 255 extern struct x86_platform_ops x86_platform; 256 extern struct x86_msi_ops x86_msi; 257 extern struct x86_io_apic_ops x86_io_apic_ops; 258 259 extern void x86_early_init_platform_quirks(void); 260 extern void x86_init_noop(void); 261 extern void x86_init_uint_noop(unsigned int unused); 262 263 #endif 264