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