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