arch/sparc/kernel/entry.h

   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
  46 #include <asm/trap_block.h>
  47
  48 struct popc_3insn_patch_entry {
  49         unsigned int    addr;
  50         unsigned int    insns[3];
  51 };
  52 extern struct popc_3insn_patch_entry __popc_3insn_patch,
  53         __popc_3insn_patch_end;
  54
  55 struct popc_6insn_patch_entry {
  56         unsigned int    addr;
  57         unsigned int    insns[6];
  58 };
  59 extern struct popc_6insn_patch_entry __popc_6insn_patch,
  60         __popc_6insn_patch_end;
  61
  62 struct pause_patch_entry {
  63         unsigned int    addr;
  64         unsigned int    insns[3];
  65 };
  66 extern struct pause_patch_entry __pause_3insn_patch,
  67         __pause_3insn_patch_end;
  68
  69 extern void __init per_cpu_patch(void);
  70 extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  71                                     struct sun4v_1insn_patch_entry *);
  72 extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  73                                     struct sun4v_2insn_patch_entry *);
  74 extern void __init sun4v_patch(void);
  75 extern void __init boot_cpu_id_too_large(int cpu);
  76 extern unsigned int dcache_parity_tl1_occurred;
  77 extern unsigned int icache_parity_tl1_occurred;
  78
  79 extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  80 extern void timer_interrupt(int irq, struct pt_regs *regs);
  81
  82 extern void do_notify_resume(struct pt_regs *regs,
  83                              unsigned long orig_i0,
  84                              unsigned long thread_info_flags);
  85
  86 extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  87 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  88
  89 extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
  90
  91 extern void do_fpieee(struct pt_regs *regs);
  92 extern void do_fpother(struct pt_regs *regs);
  93 extern void do_tof(struct pt_regs *regs);
  94 extern void do_div0(struct pt_regs *regs);
  95 extern void do_illegal_instruction(struct pt_regs *regs);
  96 extern void mem_address_unaligned(struct pt_regs *regs,
  97                                   unsigned long sfar,
  98                                   unsigned long sfsr);
  99 extern void sun4v_do_mna(struct pt_regs *regs,
 100                          unsigned long addr,
 101                          unsigned long type_ctx);
 102 extern void do_privop(struct pt_regs *regs);
 103 extern void do_privact(struct pt_regs *regs);
 104 extern void do_cee(struct pt_regs *regs);
 105 extern void do_cee_tl1(struct pt_regs *regs);
 106 extern void do_dae_tl1(struct pt_regs *regs);
 107 extern void do_iae_tl1(struct pt_regs *regs);
 108 extern void do_div0_tl1(struct pt_regs *regs);
 109 extern void do_fpdis_tl1(struct pt_regs *regs);
 110 extern void do_fpieee_tl1(struct pt_regs *regs);
 111 extern void do_fpother_tl1(struct pt_regs *regs);
 112 extern void do_ill_tl1(struct pt_regs *regs);
 113 extern void do_irq_tl1(struct pt_regs *regs);
 114 extern void do_lddfmna_tl1(struct pt_regs *regs);
 115 extern void do_stdfmna_tl1(struct pt_regs *regs);
 116 extern void do_paw(struct pt_regs *regs);
 117 extern void do_paw_tl1(struct pt_regs *regs);
 118 extern void do_vaw(struct pt_regs *regs);
 119 extern void do_vaw_tl1(struct pt_regs *regs);
 120 extern void do_tof_tl1(struct pt_regs *regs);
 121 extern void do_getpsr(struct pt_regs *regs);
 122
 123 extern void spitfire_insn_access_exception(struct pt_regs *regs,
 124                                            unsigned long sfsr,
 125                                            unsigned long sfar);
 126 extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
 127                                                unsigned long sfsr,
 128                                                unsigned long sfar);
 129 extern void spitfire_data_access_exception(struct pt_regs *regs,
 130                                            unsigned long sfsr,
 131                                            unsigned long sfar);
 132 extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
 133                                                unsigned long sfsr,
 134                                                unsigned long sfar);
 135 extern void spitfire_access_error(struct pt_regs *regs,
 136                                   unsigned long status_encoded,
 137                                   unsigned long afar);
 138
 139 extern void cheetah_fecc_handler(struct pt_regs *regs,
 140                                  unsigned long afsr,
 141                                  unsigned long afar);
 142 extern void cheetah_cee_handler(struct pt_regs *regs,
 143                                 unsigned long afsr,
 144                                 unsigned long afar);
 145 extern void cheetah_deferred_handler(struct pt_regs *regs,
 146                                      unsigned long afsr,
 147                                      unsigned long afar);
 148 extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
 149
 150 extern void sun4v_insn_access_exception(struct pt_regs *regs,
 151                                         unsigned long addr,
 152                                         unsigned long type_ctx);
 153 extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
 154                                             unsigned long addr,
 155                                             unsigned long type_ctx);
 156 extern void sun4v_data_access_exception(struct pt_regs *regs,
 157                                         unsigned long addr,
 158                                         unsigned long type_ctx);
 159 extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 160                                             unsigned long addr,
 161                                             unsigned long type_ctx);
 162 extern void sun4v_resum_error(struct pt_regs *regs,
 163                               unsigned long offset);
 164 extern void sun4v_resum_overflow(struct pt_regs *regs);
 165 extern void sun4v_nonresum_error(struct pt_regs *regs,
 166                                  unsigned long offset);
 167 extern void sun4v_nonresum_overflow(struct pt_regs *regs);
 168
 169 extern unsigned long sun4v_err_itlb_vaddr;
 170 extern unsigned long sun4v_err_itlb_ctx;
 171 extern unsigned long sun4v_err_itlb_pte;
 172 extern unsigned long sun4v_err_itlb_error;
 173
 174 extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 175
 176 extern unsigned long sun4v_err_dtlb_vaddr;
 177 extern unsigned long sun4v_err_dtlb_ctx;
 178 extern unsigned long sun4v_err_dtlb_pte;
 179 extern unsigned long sun4v_err_dtlb_error;
 180
 181 extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 182 extern void hypervisor_tlbop_error(unsigned long err,
 183                                    unsigned long op);
 184 extern void hypervisor_tlbop_error_xcall(unsigned long err,
 185                                          unsigned long op);
 186
 187 /* WARNING: The error trap handlers in assembly know the precise
 188  *          layout of the following structure.
 189  *
 190  * C-level handlers in traps.c use this information to log the
 191  * error and then determine how to recover (if possible).
 192  */
 193 struct cheetah_err_info {
 194 /*0x00*/u64 afsr;
 195 /*0x08*/u64 afar;
 196
 197         /* D-cache state */
 198 /*0x10*/u64 dcache_data[4];     /* The actual data      */
 199 /*0x30*/u64 dcache_index;       /* D-cache index        */
 200 /*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
 201 /*0x40*/u64 dcache_utag;        /* D-cache microtag     */
 202 /*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
 203
 204         /* I-cache state */
 205 /*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
 206 /*0x90*/u64 icache_index;       /* I-cache index        */
 207 /*0x98*/u64 icache_tag;         /* I-cache phys tag     */
 208 /*0xa0*/u64 icache_utag;        /* I-cache microtag     */
 209 /*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
 210 /*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
 211 /*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
 212
 213         /* E-cache state */
 214 /*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
 215 /*0xe0*/u64 ecache_index;       /* E-cache index        */
 216 /*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
 217
 218 /*0xf0*/u64 __pad[32 - 30];
 219 };
 220 #define CHAFSR_INVALID          ((u64)-1L)
 221
 222 /* This is allocated at boot time based upon the largest hardware
 223  * cpu ID in the system.  We allocate two entries per cpu, one for
 224  * TL==0 logging and one for TL >= 1 logging.
 225  */
 226 extern struct cheetah_err_info *cheetah_error_log;
 227
 228 /* UPA nodes send interrupt packet to UltraSparc with first data reg
 229  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
 230  * delivered.  We must translate this into a non-vector IRQ so we can
 231  * set the softint on this cpu.
 232  *
 233  * To make processing these packets efficient and race free we use
 234  * an array of irq buckets below.  The interrupt vector handler in
 235  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
 236  *
 237  * If you make changes to ino_bucket, please update hand coded assembler
 238  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
 239  */
 240 struct ino_bucket {
 241 /*0x00*/unsigned long __irq_chain_pa;
 242
 243         /* Interrupt number assigned to this INO.  */
 244 /*0x08*/unsigned int __irq;
 245 /*0x0c*/unsigned int __pad;
 246 };
 247
 248 extern struct ino_bucket *ivector_table;
 249 extern unsigned long ivector_table_pa;
 250
 251 extern void init_irqwork_curcpu(void);
 252 extern void sun4v_register_mondo_queues(int this_cpu);
 253
 254 #endif /* CONFIG_SPARC32 */
 255 #endif /* _ENTRY_H */