1 #ifndef _ENTRY_H 2 #define _ENTRY_H 3 4 #include <linux/kernel.h> 5 #include <linux/types.h> 6 #include <linux/init.h> 7 8 /* irq */ 9 extern void handler_irq(int irq, struct pt_regs *regs); 10 11 #ifdef CONFIG_SPARC32 12 /* traps */ 13 extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type); 14 extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc, 15 unsigned long npc, unsigned long psr); 16 17 extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc, 18 unsigned long npc, unsigned long psr); 19 extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc, 20 unsigned long npc, 21 unsigned long psr); 22 extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc, 23 unsigned long npc, unsigned long psr); 24 extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc, 25 unsigned long npc, unsigned long psr); 26 extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc, 27 unsigned long npc, unsigned long psr); 28 extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc, 29 unsigned long npc, unsigned long psr); 30 extern void handle_reg_access(struct pt_regs *regs, unsigned long pc, 31 unsigned long npc, unsigned long psr); 32 extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc, 33 unsigned long npc, unsigned long psr); 34 extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc, 35 unsigned long npc, unsigned long psr); 36 37 38 39 /* entry.S */ 40 extern void fpsave(unsigned long *fpregs, unsigned long *fsr, 41 void *fpqueue, unsigned long *fpqdepth); 42 extern void fpload(unsigned long *fpregs, unsigned long *fsr); 43 44 #else /* CONFIG_SPARC32 */ 45 extern void __init per_cpu_patch(void); 46 extern void __init sun4v_patch(void); 47 extern void __init boot_cpu_id_too_large(int cpu); 48 extern unsigned int dcache_parity_tl1_occurred; 49 extern unsigned int icache_parity_tl1_occurred; 50 51 extern asmlinkage void sparc_breakpoint(struct pt_regs *regs); 52 extern void timer_interrupt(int irq, struct pt_regs *regs); 53 54 extern void do_notify_resume(struct pt_regs *regs, 55 unsigned long orig_i0, 56 unsigned long thread_info_flags); 57 58 extern asmlinkage int syscall_trace_enter(struct pt_regs *regs); 59 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); 60 61 extern void bad_trap_tl1(struct pt_regs *regs, long lvl); 62 63 extern void do_fpe_common(struct pt_regs *regs); 64 extern void do_fpieee(struct pt_regs *regs); 65 extern void do_fpother(struct pt_regs *regs); 66 extern void do_tof(struct pt_regs *regs); 67 extern void do_div0(struct pt_regs *regs); 68 extern void do_illegal_instruction(struct pt_regs *regs); 69 extern void mem_address_unaligned(struct pt_regs *regs, 70 unsigned long sfar, 71 unsigned long sfsr); 72 extern void sun4v_do_mna(struct pt_regs *regs, 73 unsigned long addr, 74 unsigned long type_ctx); 75 extern void do_privop(struct pt_regs *regs); 76 extern void do_privact(struct pt_regs *regs); 77 extern void do_cee(struct pt_regs *regs); 78 extern void do_cee_tl1(struct pt_regs *regs); 79 extern void do_dae_tl1(struct pt_regs *regs); 80 extern void do_iae_tl1(struct pt_regs *regs); 81 extern void do_div0_tl1(struct pt_regs *regs); 82 extern void do_fpdis_tl1(struct pt_regs *regs); 83 extern void do_fpieee_tl1(struct pt_regs *regs); 84 extern void do_fpother_tl1(struct pt_regs *regs); 85 extern void do_ill_tl1(struct pt_regs *regs); 86 extern void do_irq_tl1(struct pt_regs *regs); 87 extern void do_lddfmna_tl1(struct pt_regs *regs); 88 extern void do_stdfmna_tl1(struct pt_regs *regs); 89 extern void do_paw(struct pt_regs *regs); 90 extern void do_paw_tl1(struct pt_regs *regs); 91 extern void do_vaw(struct pt_regs *regs); 92 extern void do_vaw_tl1(struct pt_regs *regs); 93 extern void do_tof_tl1(struct pt_regs *regs); 94 extern void do_getpsr(struct pt_regs *regs); 95 96 extern void spitfire_insn_access_exception(struct pt_regs *regs, 97 unsigned long sfsr, 98 unsigned long sfar); 99 extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs, 100 unsigned long sfsr, 101 unsigned long sfar); 102 extern void spitfire_data_access_exception(struct pt_regs *regs, 103 unsigned long sfsr, 104 unsigned long sfar); 105 extern void spitfire_data_access_exception_tl1(struct pt_regs *regs, 106 unsigned long sfsr, 107 unsigned long sfar); 108 extern void spitfire_access_error(struct pt_regs *regs, 109 unsigned long status_encoded, 110 unsigned long afar); 111 112 extern void cheetah_fecc_handler(struct pt_regs *regs, 113 unsigned long afsr, 114 unsigned long afar); 115 extern void cheetah_cee_handler(struct pt_regs *regs, 116 unsigned long afsr, 117 unsigned long afar); 118 extern void cheetah_deferred_handler(struct pt_regs *regs, 119 unsigned long afsr, 120 unsigned long afar); 121 extern void cheetah_plus_parity_error(int type, struct pt_regs *regs); 122 123 extern void sun4v_insn_access_exception(struct pt_regs *regs, 124 unsigned long addr, 125 unsigned long type_ctx); 126 extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs, 127 unsigned long addr, 128 unsigned long type_ctx); 129 extern void sun4v_data_access_exception(struct pt_regs *regs, 130 unsigned long addr, 131 unsigned long type_ctx); 132 extern void sun4v_data_access_exception_tl1(struct pt_regs *regs, 133 unsigned long addr, 134 unsigned long type_ctx); 135 extern void sun4v_resum_error(struct pt_regs *regs, 136 unsigned long offset); 137 extern void sun4v_resum_overflow(struct pt_regs *regs); 138 extern void sun4v_nonresum_error(struct pt_regs *regs, 139 unsigned long offset); 140 extern void sun4v_nonresum_overflow(struct pt_regs *regs); 141 142 extern unsigned long sun4v_err_itlb_vaddr; 143 extern unsigned long sun4v_err_itlb_ctx; 144 extern unsigned long sun4v_err_itlb_pte; 145 extern unsigned long sun4v_err_itlb_error; 146 147 extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl); 148 149 extern unsigned long sun4v_err_dtlb_vaddr; 150 extern unsigned long sun4v_err_dtlb_ctx; 151 extern unsigned long sun4v_err_dtlb_pte; 152 extern unsigned long sun4v_err_dtlb_error; 153 154 extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl); 155 extern void hypervisor_tlbop_error(unsigned long err, 156 unsigned long op); 157 extern void hypervisor_tlbop_error_xcall(unsigned long err, 158 unsigned long op); 159 160 /* WARNING: The error trap handlers in assembly know the precise 161 * layout of the following structure. 162 * 163 * C-level handlers in traps.c use this information to log the 164 * error and then determine how to recover (if possible). 165 */ 166 struct cheetah_err_info { 167 /*0x00*/u64 afsr; 168 /*0x08*/u64 afar; 169 170 /* D-cache state */ 171 /*0x10*/u64 dcache_data[4]; /* The actual data */ 172 /*0x30*/u64 dcache_index; /* D-cache index */ 173 /*0x38*/u64 dcache_tag; /* D-cache tag/valid */ 174 /*0x40*/u64 dcache_utag; /* D-cache microtag */ 175 /*0x48*/u64 dcache_stag; /* D-cache snooptag */ 176 177 /* I-cache state */ 178 /*0x50*/u64 icache_data[8]; /* The actual insns + predecode */ 179 /*0x90*/u64 icache_index; /* I-cache index */ 180 /*0x98*/u64 icache_tag; /* I-cache phys tag */ 181 /*0xa0*/u64 icache_utag; /* I-cache microtag */ 182 /*0xa8*/u64 icache_stag; /* I-cache snooptag */ 183 /*0xb0*/u64 icache_upper; /* I-cache upper-tag */ 184 /*0xb8*/u64 icache_lower; /* I-cache lower-tag */ 185 186 /* E-cache state */ 187 /*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */ 188 /*0xe0*/u64 ecache_index; /* E-cache index */ 189 /*0xe8*/u64 ecache_tag; /* E-cache tag/state */ 190 191 /*0xf0*/u64 __pad[32 - 30]; 192 }; 193 #define CHAFSR_INVALID ((u64)-1L) 194 195 /* This is allocated at boot time based upon the largest hardware 196 * cpu ID in the system. We allocate two entries per cpu, one for 197 * TL==0 logging and one for TL >= 1 logging. 198 */ 199 extern struct cheetah_err_info *cheetah_error_log; 200 201 /* UPA nodes send interrupt packet to UltraSparc with first data reg 202 * value low 5 (7 on Starfire) bits holding the IRQ identifier being 203 * delivered. We must translate this into a non-vector IRQ so we can 204 * set the softint on this cpu. 205 * 206 * To make processing these packets efficient and race free we use 207 * an array of irq buckets below. The interrupt vector handler in 208 * entry.S feeds incoming packets into per-cpu pil-indexed lists. 209 * 210 * If you make changes to ino_bucket, please update hand coded assembler 211 * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S 212 */ 213 struct ino_bucket { 214 /*0x00*/unsigned long __irq_chain_pa; 215 216 /* Interrupt number assigned to this INO. */ 217 /*0x08*/unsigned int __irq; 218 /*0x0c*/unsigned int __pad; 219 }; 220 221 extern struct ino_bucket *ivector_table; 222 extern unsigned long ivector_table_pa; 223 224 extern void init_irqwork_curcpu(void); 225 extern void __cpuinit sun4v_register_mondo_queues(int this_cpu); 226 227 #endif /* CONFIG_SPARC32 */ 228 #endif /* _ENTRY_H */ 229