1#ifndef _ASM_X86_PLATFORM_H
2#define _ASM_X86_PLATFORM_H
3
4#include <asm/pgtable_types.h>
5#include <asm/bootparam.h>
6
7struct mpc_bus;
8struct mpc_cpu;
9struct mpc_table;
10struct cpuinfo_x86;
11
12/**
13 * struct x86_init_mpparse - platform specific mpparse ops
14 * @mpc_record:			platform specific mpc record accounting
15 * @setup_ioapic_ids:		platform specific ioapic id override
16 * @mpc_apic_id:		platform specific mpc apic id assignment
17 * @smp_read_mpc_oem:		platform specific oem mpc table setup
18 * @mpc_oem_pci_bus:		platform specific pci bus setup (default NULL)
19 * @mpc_oem_bus_info:		platform specific mpc bus info
20 * @find_smp_config:		find the smp configuration
21 * @get_smp_config:		get the smp configuration
22 */
23struct x86_init_mpparse {
24	void (*mpc_record)(unsigned int mode);
25	void (*setup_ioapic_ids)(void);
26	int (*mpc_apic_id)(struct mpc_cpu *m);
27	void (*smp_read_mpc_oem)(struct mpc_table *mpc);
28	void (*mpc_oem_pci_bus)(struct mpc_bus *m);
29	void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
30	void (*find_smp_config)(void);
31	void (*get_smp_config)(unsigned int early);
32};
33
34/**
35 * struct x86_init_resources - platform specific resource related ops
36 * @probe_roms:			probe BIOS roms
37 * @reserve_resources:		reserve the standard resources for the
38 *				platform
39 * @memory_setup:		platform specific memory setup
40 *
41 */
42struct x86_init_resources {
43	void (*probe_roms)(void);
44	void (*reserve_resources)(void);
45	char *(*memory_setup)(void);
46};
47
48/**
49 * struct x86_init_irqs - platform specific interrupt setup
50 * @pre_vector_init:		init code to run before interrupt vectors
51 *				are set up.
52 * @intr_init:			interrupt init code
53 * @trap_init:			platform specific trap setup
54 */
55struct x86_init_irqs {
56	void (*pre_vector_init)(void);
57	void (*intr_init)(void);
58	void (*trap_init)(void);
59};
60
61/**
62 * struct x86_init_oem - oem platform specific customizing functions
63 * @arch_setup:			platform specific architecure setup
64 * @banner:			print a platform specific banner
65 */
66struct x86_init_oem {
67	void (*arch_setup)(void);
68	void (*banner)(void);
69};
70
71/**
72 * struct x86_init_paging - platform specific paging functions
73 * @pagetable_init:	platform specific paging initialization call to setup
74 *			the kernel pagetables and prepare accessors functions.
75 *			Callback must call paging_init(). Called once after the
76 *			direct mapping for phys memory is available.
77 */
78struct x86_init_paging {
79	void (*pagetable_init)(void);
80};
81
82/**
83 * struct x86_init_timers - platform specific timer setup
84 * @setup_perpcu_clockev:	set up the per cpu clock event device for the
85 *				boot cpu
86 * @tsc_pre_init:		platform function called before TSC init
87 * @timer_init:			initialize the platform timer (default PIT/HPET)
88 * @wallclock_init:		init the wallclock device
89 */
90struct x86_init_timers {
91	void (*setup_percpu_clockev)(void);
92	void (*tsc_pre_init)(void);
93	void (*timer_init)(void);
94	void (*wallclock_init)(void);
95};
96
97/**
98 * struct x86_init_iommu - platform specific iommu setup
99 * @iommu_init:			platform specific iommu setup
100 */
101struct x86_init_iommu {
102	int (*iommu_init)(void);
103};
104
105/**
106 * struct x86_init_pci - platform specific pci init functions
107 * @arch_init:			platform specific pci arch init call
108 * @init:			platform specific pci subsystem init
109 * @init_irq:			platform specific pci irq init
110 * @fixup_irqs:			platform specific pci irq fixup
111 */
112struct x86_init_pci {
113	int (*arch_init)(void);
114	int (*init)(void);
115	void (*init_irq)(void);
116	void (*fixup_irqs)(void);
117};
118
119/**
120 * struct x86_init_ops - functions for platform specific setup
121 *
122 */
123struct x86_init_ops {
124	struct x86_init_resources	resources;
125	struct x86_init_mpparse		mpparse;
126	struct x86_init_irqs		irqs;
127	struct x86_init_oem		oem;
128	struct x86_init_paging		paging;
129	struct x86_init_timers		timers;
130	struct x86_init_iommu		iommu;
131	struct x86_init_pci		pci;
132};
133
134/**
135 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
136 * @setup_percpu_clockev:	set up the per cpu clock event device
137 * @early_percpu_clock_init:	early init of the per cpu clock event device
138 */
139struct x86_cpuinit_ops {
140	void (*setup_percpu_clockev)(void);
141	void (*early_percpu_clock_init)(void);
142	void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
143};
144
145struct timespec;
146
147/**
148 * struct x86_platform_ops - platform specific runtime functions
149 * @calibrate_tsc:		calibrate TSC
150 * @get_wallclock:		get time from HW clock like RTC etc.
151 * @set_wallclock:		set time back to HW clock
152 * @is_untracked_pat_range	exclude from PAT logic
153 * @nmi_init			enable NMI on cpus
154 * @i8042_detect		pre-detect if i8042 controller exists
155 * @save_sched_clock_state:	save state for sched_clock() on suspend
156 * @restore_sched_clock_state:	restore state for sched_clock() on resume
157 * @apic_post_init:		adjust apic if neeeded
158 */
159struct x86_platform_ops {
160	unsigned long (*calibrate_tsc)(void);
161	void (*get_wallclock)(struct timespec *ts);
162	int (*set_wallclock)(const struct timespec *ts);
163	void (*iommu_shutdown)(void);
164	bool (*is_untracked_pat_range)(u64 start, u64 end);
165	void (*nmi_init)(void);
166	unsigned char (*get_nmi_reason)(void);
167	int (*i8042_detect)(void);
168	void (*save_sched_clock_state)(void);
169	void (*restore_sched_clock_state)(void);
170	void (*apic_post_init)(void);
171};
172
173struct pci_dev;
174struct msi_msg;
175
176struct x86_msi_ops {
177	int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
178	void (*compose_msi_msg)(struct pci_dev *dev, unsigned int irq,
179				unsigned int dest, struct msi_msg *msg,
180			       u8 hpet_id);
181	void (*teardown_msi_irq)(unsigned int irq);
182	void (*teardown_msi_irqs)(struct pci_dev *dev);
183	void (*restore_msi_irqs)(struct pci_dev *dev);
184	int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
185};
186
187struct IO_APIC_route_entry;
188struct io_apic_irq_attr;
189struct irq_data;
190struct cpumask;
191
192struct x86_io_apic_ops {
193	void		(*init)   (void);
194	unsigned int	(*read)   (unsigned int apic, unsigned int reg);
195	void		(*write)  (unsigned int apic, unsigned int reg, unsigned int value);
196	void		(*modify) (unsigned int apic, unsigned int reg, unsigned int value);
197	void		(*disable)(void);
198	void		(*print_entries)(unsigned int apic, unsigned int nr_entries);
199	int		(*set_affinity)(struct irq_data *data,
200					const struct cpumask *mask,
201					bool force);
202	int		(*setup_entry)(int irq, struct IO_APIC_route_entry *entry,
203				       unsigned int destination, int vector,
204				       struct io_apic_irq_attr *attr);
205	void		(*eoi_ioapic_pin)(int apic, int pin, int vector);
206};
207
208extern struct x86_init_ops x86_init;
209extern struct x86_cpuinit_ops x86_cpuinit;
210extern struct x86_platform_ops x86_platform;
211extern struct x86_msi_ops x86_msi;
212extern struct x86_io_apic_ops x86_io_apic_ops;
213extern void x86_init_noop(void);
214extern void x86_init_uint_noop(unsigned int unused);
215
216#endif
217