1 #ifndef _ASM_X86_PLATFORM_H
2 #define _ASM_X86_PLATFORM_H
4 #include <asm/bootparam.h>
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
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);
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
38 * @memory_setup: platform specific memory setup
41 struct x86_init_resources {
42 void (*probe_roms)(void);
43 void (*reserve_resources)(void);
44 char *(*memory_setup)(void);
48 * struct x86_init_irqs - platform specific interrupt setup
49 * @pre_vector_init: init code to run before interrupt vectors
51 * @intr_init: interrupt init code
52 * @trap_init: platform specific trap setup
54 struct x86_init_irqs {
55 void (*pre_vector_init)(void);
56 void (*intr_init)(void);
57 void (*trap_init)(void);
61 * struct x86_init_oem - oem platform specific customizing functions
62 * @arch_setup: platform specific architecure setup
63 * @banner: print a platform specific banner
66 void (*arch_setup)(void);
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.
77 struct x86_init_paging {
78 void (*pagetable_init)(void);
82 * struct x86_init_timers - platform specific timer setup
83 * @setup_perpcu_clockev: set up the per cpu clock event device for the
85 * @timer_init: initialize the platform timer (default PIT/HPET)
86 * @wallclock_init: init the wallclock device
88 struct x86_init_timers {
89 void (*setup_percpu_clockev)(void);
90 void (*timer_init)(void);
91 void (*wallclock_init)(void);
95 * struct x86_init_iommu - platform specific iommu setup
96 * @iommu_init: platform specific iommu setup
98 struct x86_init_iommu {
99 int (*iommu_init)(void);
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
109 struct x86_init_pci {
110 int (*arch_init)(void);
112 void (*init_irq)(void);
113 void (*fixup_irqs)(void);
117 * struct x86_init_ops - functions for platform specific setup
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;
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
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);
145 * struct x86_legacy_devices - legacy x86 devices
147 * @pnpbios: this platform can have a PNPBIOS. If this is disabled the platform
148 * is known to never have a PNPBIOS.
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.
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.
163 struct x86_legacy_devices {
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
173 * @X86_LEGACY_i8042_EXPECTED_PRESENT: the controller is likely to be
174 * present, the i8042 driver should probe for controller existence.
176 enum x86_legacy_i8042_state {
177 X86_LEGACY_I8042_PLATFORM_ABSENT,
178 X86_LEGACY_I8042_FIRMWARE_ABSENT,
179 X86_LEGACY_I8042_EXPECTED_PRESENT,
183 * struct x86_legacy_features - legacy x86 features
185 * @i8042: indicated if we expect the device to have i8042 controller
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.
194 struct x86_legacy_features {
195 enum x86_legacy_i8042_state i8042;
197 int reserve_bios_regions;
198 struct x86_legacy_devices devices;
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 neeeded
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 beyong what may be
217 * possible in x86_early_init_platform_quirks() by
218 * only using the current x86_hardware_subarch
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);
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);
246 struct x86_io_apic_ops {
247 unsigned int (*read) (unsigned int apic, unsigned int reg);
248 void (*disable)(void);
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;
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);