xref: /openbmc/linux/arch/x86/include/asm/x86_init.h (revision 4800cd83)
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 
7 struct mpc_bus;
8 struct mpc_cpu;
9 struct mpc_table;
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 architecure 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_setup_start:	platform specific pre paging_init() call
73  * @pagetable_setup_done:	platform specific post paging_init() call
74  */
75 struct x86_init_paging {
76 	void (*pagetable_setup_start)(pgd_t *base);
77 	void (*pagetable_setup_done)(pgd_t *base);
78 };
79 
80 /**
81  * struct x86_init_timers - platform specific timer setup
82  * @setup_perpcu_clockev:	set up the per cpu clock event device for the
83  *				boot cpu
84  * @tsc_pre_init:		platform function called before TSC init
85  * @timer_init:			initialize the platform timer (default PIT/HPET)
86  */
87 struct x86_init_timers {
88 	void (*setup_percpu_clockev)(void);
89 	void (*tsc_pre_init)(void);
90 	void (*timer_init)(void);
91 };
92 
93 /**
94  * struct x86_init_iommu - platform specific iommu setup
95  * @iommu_init:			platform specific iommu setup
96  */
97 struct x86_init_iommu {
98 	int (*iommu_init)(void);
99 };
100 
101 /**
102  * struct x86_init_pci - platform specific pci init functions
103  * @arch_init:			platform specific pci arch init call
104  * @init:			platform specific pci subsystem init
105  * @init_irq:			platform specific pci irq init
106  * @fixup_irqs:			platform specific pci irq fixup
107  */
108 struct x86_init_pci {
109 	int (*arch_init)(void);
110 	int (*init)(void);
111 	void (*init_irq)(void);
112 	void (*fixup_irqs)(void);
113 };
114 
115 /**
116  * struct x86_init_ops - functions for platform specific setup
117  *
118  */
119 struct x86_init_ops {
120 	struct x86_init_resources	resources;
121 	struct x86_init_mpparse		mpparse;
122 	struct x86_init_irqs		irqs;
123 	struct x86_init_oem		oem;
124 	struct x86_init_paging		paging;
125 	struct x86_init_timers		timers;
126 	struct x86_init_iommu		iommu;
127 	struct x86_init_pci		pci;
128 };
129 
130 /**
131  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
132  * @setup_percpu_clockev:	set up the per cpu clock event device
133  */
134 struct x86_cpuinit_ops {
135 	void (*setup_percpu_clockev)(void);
136 };
137 
138 /**
139  * struct x86_platform_ops - platform specific runtime functions
140  * @calibrate_tsc:		calibrate TSC
141  * @get_wallclock:		get time from HW clock like RTC etc.
142  * @set_wallclock:		set time back to HW clock
143  * @is_untracked_pat_range	exclude from PAT logic
144  * @nmi_init			enable NMI on cpus
145  * @i8042_detect		pre-detect if i8042 controller exists
146  */
147 struct x86_platform_ops {
148 	unsigned long (*calibrate_tsc)(void);
149 	unsigned long (*get_wallclock)(void);
150 	int (*set_wallclock)(unsigned long nowtime);
151 	void (*iommu_shutdown)(void);
152 	bool (*is_untracked_pat_range)(u64 start, u64 end);
153 	void (*nmi_init)(void);
154 	int (*i8042_detect)(void);
155 };
156 
157 struct pci_dev;
158 
159 struct x86_msi_ops {
160 	int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
161 	void (*teardown_msi_irq)(unsigned int irq);
162 	void (*teardown_msi_irqs)(struct pci_dev *dev);
163 };
164 
165 extern struct x86_init_ops x86_init;
166 extern struct x86_cpuinit_ops x86_cpuinit;
167 extern struct x86_platform_ops x86_platform;
168 extern struct x86_msi_ops x86_msi;
169 
170 extern void x86_init_noop(void);
171 extern void x86_init_uint_noop(unsigned int unused);
172 
173 #endif
174