1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __SPARC_KERNEL_H
3 #define __SPARC_KERNEL_H
4 
5 #include <linux/interrupt.h>
6 #include <linux/ftrace.h>
7 
8 #include <asm/traps.h>
9 #include <asm/head.h>
10 #include <asm/io.h>
11 
12 /* cpu.c */
13 extern const char *sparc_pmu_type;
14 extern unsigned int fsr_storage;
15 extern int ncpus_probed;
16 
17 /* process{_32,_64}.c */
18 asmlinkage long sparc_clone(struct pt_regs *regs);
19 asmlinkage long sparc_fork(struct pt_regs *regs);
20 asmlinkage long sparc_vfork(struct pt_regs *regs);
21 
22 #ifdef CONFIG_SPARC64
23 /* setup_64.c */
24 struct seq_file;
25 void cpucap_info(struct seq_file *);
26 
kimage_addr_to_ra(const void * p)27 static inline unsigned long kimage_addr_to_ra(const void *p)
28 {
29 	unsigned long val = (unsigned long) p;
30 
31 	return kern_base + (val - KERNBASE);
32 }
33 
34 /* sys_sparc_64.c */
35 asmlinkage long sys_kern_features(void);
36 
37 /* unaligned_64.c */
38 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
39 int handle_popc(u32 insn, struct pt_regs *regs);
40 void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
41 void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
42 
43 /* smp_64.c */
44 void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs);
45 void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs);
46 void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs);
47 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs);
48 
49 /* kgdb_64.c */
50 void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs);
51 
52 /* pci.c */
53 #ifdef CONFIG_PCI
54 int ali_sound_dma_hack(struct device *dev, u64 device_mask);
55 #else
56 #define ali_sound_dma_hack(dev, mask)	(0)
57 #endif
58 
59 /* signal32.c */
60 void do_sigreturn32(struct pt_regs *regs);
61 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs);
62 void do_signal32(struct pt_regs * regs);
63 asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp);
64 
65 /* time_64.c */
66 void __init time_init_early(void);
67 
68 /* compat_audit.c */
69 extern unsigned int sparc32_dir_class[];
70 extern unsigned int sparc32_chattr_class[];
71 extern unsigned int sparc32_write_class[];
72 extern unsigned int sparc32_read_class[];
73 extern unsigned int sparc32_signal_class[];
74 int sparc32_classify_syscall(unsigned int syscall);
75 #endif
76 
77 #ifdef CONFIG_SPARC32
78 /* setup_32.c */
79 struct linux_romvec;
80 void sparc32_start_kernel(struct linux_romvec *rp);
81 
82 /* cpu.c */
83 void cpu_probe(void);
84 
85 /* traps_32.c */
86 void handle_hw_divzero(struct pt_regs *regs, unsigned long pc,
87                        unsigned long npc, unsigned long psr);
88 /* irq_32.c */
89 extern struct irqaction static_irqaction[];
90 extern int static_irq_count;
91 extern spinlock_t irq_action_lock;
92 
93 void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs);
94 void init_IRQ(void);
95 
96 /* sun4m_irq.c */
97 void sun4m_init_IRQ(void);
98 void sun4m_unmask_profile_irq(void);
99 void sun4m_clear_profile_irq(int cpu);
100 
101 /* sun4m_smp.c */
102 void sun4m_cpu_pre_starting(void *arg);
103 void sun4m_cpu_pre_online(void *arg);
104 void __init smp4m_boot_cpus(void);
105 int smp4m_boot_one_cpu(int i, struct task_struct *idle);
106 void __init smp4m_smp_done(void);
107 void smp4m_cross_call_irq(void);
108 void smp4m_percpu_timer_interrupt(struct pt_regs *regs);
109 
110 /* sun4d_irq.c */
111 extern spinlock_t sun4d_imsk_lock;
112 
113 void sun4d_init_IRQ(void);
114 int sun4d_request_irq(unsigned int irq,
115                       irq_handler_t handler,
116                       unsigned long irqflags,
117                       const char *devname, void *dev_id);
118 int show_sun4d_interrupts(struct seq_file *, void *);
119 void sun4d_distribute_irqs(void);
120 void sun4d_free_irq(unsigned int irq, void *dev_id);
121 
122 /* sun4d_smp.c */
123 void sun4d_cpu_pre_starting(void *arg);
124 void sun4d_cpu_pre_online(void *arg);
125 void __init smp4d_boot_cpus(void);
126 int smp4d_boot_one_cpu(int i, struct task_struct *idle);
127 void __init smp4d_smp_done(void);
128 void smp4d_cross_call_irq(void);
129 void smp4d_percpu_timer_interrupt(struct pt_regs *regs);
130 
131 /* leon_smp.c */
132 void leon_cpu_pre_starting(void *arg);
133 void leon_cpu_pre_online(void *arg);
134 void leonsmp_ipi_interrupt(void);
135 void leon_cross_call_irq(void);
136 
137 /* head_32.S */
138 extern unsigned int t_nmi[];
139 extern unsigned int linux_trap_ipi15_sun4d[];
140 extern unsigned int linux_trap_ipi15_sun4m[];
141 
142 extern struct tt_entry trapbase;
143 extern struct tt_entry trapbase_cpu1;
144 extern struct tt_entry trapbase_cpu2;
145 extern struct tt_entry trapbase_cpu3;
146 
147 extern char cputypval[];
148 
149 /* entry.S */
150 extern unsigned long lvl14_save[4];
151 extern unsigned int real_irq_entry[];
152 extern unsigned int smp4d_ticker[];
153 extern unsigned int patchme_maybe_smp_msg[];
154 
155 void floppy_hardint(void);
156 
157 /* trampoline_32.S */
158 extern unsigned long sun4m_cpu_startup;
159 extern unsigned long sun4d_cpu_startup;
160 
161 /* signal_32.c */
162 asmlinkage void do_sigreturn(struct pt_regs *regs);
163 asmlinkage void do_rt_sigreturn(struct pt_regs *regs);
164 void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,
165                       unsigned long thread_info_flags);
166 asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr,
167                                struct sigstack __user *ossptr,
168                                unsigned long sp);
169 
170 /* ptrace_32.c */
171 asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p);
172 
173 /* unaligned_32.c */
174 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
175 asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn);
176 
177 /* windows.c */
178 void try_to_clear_window_buffer(struct pt_regs *regs, int who);
179 
180 /* auxio_32.c */
181 void __init auxio_probe(void);
182 void __init auxio_power_probe(void);
183 
184 /* pcic.c */
185 extern void __iomem *pcic_regs;
186 void pcic_nmi(unsigned int pend, struct pt_regs *regs);
187 
188 /* time_32.c */
189 void __init time_init(void);
190 
191 #else /* CONFIG_SPARC32 */
192 #endif /* CONFIG_SPARC32 */
193 #endif /* !(__SPARC_KERNEL_H) */
194