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 #ifdef CONFIG_SPARC64 18 /* setup_64.c */ 19 struct seq_file; 20 void cpucap_info(struct seq_file *); 21 22 static inline unsigned long kimage_addr_to_ra(const void *p) 23 { 24 unsigned long val = (unsigned long) p; 25 26 return kern_base + (val - KERNBASE); 27 } 28 29 /* sys_sparc_64.c */ 30 asmlinkage long sys_kern_features(void); 31 32 /* unaligned_64.c */ 33 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); 34 int handle_popc(u32 insn, struct pt_regs *regs); 35 void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr); 36 void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr); 37 38 /* smp_64.c */ 39 void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs); 40 void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs); 41 void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs); 42 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs); 43 44 /* kgdb_64.c */ 45 void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs); 46 47 /* pci.c */ 48 int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask); 49 50 /* signal32.c */ 51 void do_sigreturn32(struct pt_regs *regs); 52 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs); 53 void do_signal32(struct pt_regs * regs); 54 asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp); 55 56 /* time_64.c */ 57 void __init time_init_early(void); 58 59 /* compat_audit.c */ 60 extern unsigned int sparc32_dir_class[]; 61 extern unsigned int sparc32_chattr_class[]; 62 extern unsigned int sparc32_write_class[]; 63 extern unsigned int sparc32_read_class[]; 64 extern unsigned int sparc32_signal_class[]; 65 int sparc32_classify_syscall(unsigned int syscall); 66 #endif 67 68 #ifdef CONFIG_SPARC32 69 /* setup_32.c */ 70 struct linux_romvec; 71 void sparc32_start_kernel(struct linux_romvec *rp); 72 73 /* cpu.c */ 74 void cpu_probe(void); 75 76 /* traps_32.c */ 77 void handle_hw_divzero(struct pt_regs *regs, unsigned long pc, 78 unsigned long npc, unsigned long psr); 79 /* irq_32.c */ 80 extern struct irqaction static_irqaction[]; 81 extern int static_irq_count; 82 extern spinlock_t irq_action_lock; 83 84 void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs); 85 void init_IRQ(void); 86 87 /* sun4m_irq.c */ 88 void sun4m_init_IRQ(void); 89 void sun4m_unmask_profile_irq(void); 90 void sun4m_clear_profile_irq(int cpu); 91 92 /* sun4m_smp.c */ 93 void sun4m_cpu_pre_starting(void *arg); 94 void sun4m_cpu_pre_online(void *arg); 95 void __init smp4m_boot_cpus(void); 96 int smp4m_boot_one_cpu(int i, struct task_struct *idle); 97 void __init smp4m_smp_done(void); 98 void smp4m_cross_call_irq(void); 99 void smp4m_percpu_timer_interrupt(struct pt_regs *regs); 100 101 /* sun4d_irq.c */ 102 extern spinlock_t sun4d_imsk_lock; 103 104 void sun4d_init_IRQ(void); 105 int sun4d_request_irq(unsigned int irq, 106 irq_handler_t handler, 107 unsigned long irqflags, 108 const char *devname, void *dev_id); 109 int show_sun4d_interrupts(struct seq_file *, void *); 110 void sun4d_distribute_irqs(void); 111 void sun4d_free_irq(unsigned int irq, void *dev_id); 112 113 /* sun4d_smp.c */ 114 void sun4d_cpu_pre_starting(void *arg); 115 void sun4d_cpu_pre_online(void *arg); 116 void __init smp4d_boot_cpus(void); 117 int smp4d_boot_one_cpu(int i, struct task_struct *idle); 118 void __init smp4d_smp_done(void); 119 void smp4d_cross_call_irq(void); 120 void smp4d_percpu_timer_interrupt(struct pt_regs *regs); 121 122 /* leon_smp.c */ 123 void leon_cpu_pre_starting(void *arg); 124 void leon_cpu_pre_online(void *arg); 125 void leonsmp_ipi_interrupt(void); 126 void leon_cross_call_irq(void); 127 128 /* head_32.S */ 129 extern unsigned int t_nmi[]; 130 extern unsigned int linux_trap_ipi15_sun4d[]; 131 extern unsigned int linux_trap_ipi15_sun4m[]; 132 133 extern struct tt_entry trapbase; 134 extern struct tt_entry trapbase_cpu1; 135 extern struct tt_entry trapbase_cpu2; 136 extern struct tt_entry trapbase_cpu3; 137 138 extern char cputypval[]; 139 140 /* entry.S */ 141 extern unsigned long lvl14_save[4]; 142 extern unsigned int real_irq_entry[]; 143 extern unsigned int smp4d_ticker[]; 144 extern unsigned int patchme_maybe_smp_msg[]; 145 146 void floppy_hardint(void); 147 148 /* trampoline_32.S */ 149 extern unsigned long sun4m_cpu_startup; 150 extern unsigned long sun4d_cpu_startup; 151 152 /* process_32.c */ 153 asmlinkage int sparc_do_fork(unsigned long clone_flags, 154 unsigned long stack_start, 155 struct pt_regs *regs, 156 unsigned long stack_size); 157 158 /* signal_32.c */ 159 asmlinkage void do_sigreturn(struct pt_regs *regs); 160 asmlinkage void do_rt_sigreturn(struct pt_regs *regs); 161 void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, 162 unsigned long thread_info_flags); 163 asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr, 164 struct sigstack __user *ossptr, 165 unsigned long sp); 166 167 /* ptrace_32.c */ 168 asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p); 169 170 /* unaligned_32.c */ 171 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); 172 asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn); 173 174 /* windows.c */ 175 void try_to_clear_window_buffer(struct pt_regs *regs, int who); 176 177 /* auxio_32.c */ 178 void __init auxio_probe(void); 179 void __init auxio_power_probe(void); 180 181 /* pcic.c */ 182 extern void __iomem *pcic_regs; 183 void pcic_nmi(unsigned int pend, struct pt_regs *regs); 184 185 /* time_32.c */ 186 void __init time_init(void); 187 188 #else /* CONFIG_SPARC32 */ 189 #endif /* CONFIG_SPARC32 */ 190 #endif /* !(__SPARC_KERNEL_H) */ 191