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 void handler_irq(int irq, struct pt_regs *regs);
  10
  11 #ifdef CONFIG_SPARC32
  12 /* traps */
  13 void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
  14 void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
  15                             unsigned long npc, unsigned long psr);
  16
  17 void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
  18                          unsigned long npc, unsigned long psr);
  19 void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
  20                             unsigned long npc, unsigned long psr);
  21 void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
  22                  unsigned long npc, unsigned long psr);
  23 void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
  24                  unsigned long npc, unsigned long psr);
  25 void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
  26                          unsigned long npc, unsigned long psr);
  27 void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
  28                        unsigned long npc, unsigned long psr);
  29 void handle_reg_access(struct pt_regs *regs, unsigned long pc,
  30                        unsigned long npc, unsigned long psr);
  31 void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
  32                         unsigned long npc, unsigned long psr);
  33 void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
  34                          unsigned long npc, unsigned long psr);
  35
  36
  37
  38 /* entry.S */
  39 void fpsave(unsigned long *fpregs, unsigned long *fsr,
  40             void *fpqueue, unsigned long *fpqdepth);
  41 void fpload(unsigned long *fpregs, unsigned long *fsr);
  42
  43 #else /* CONFIG_SPARC32 */
  44
  45 #include <asm/trap_block.h>
  46
  47 struct popc_3insn_patch_entry {
  48         unsigned int    addr;
  49         unsigned int    insns[3];
  50 };
  51 extern struct popc_3insn_patch_entry __popc_3insn_patch,
  52         __popc_3insn_patch_end;
  53
  54 struct popc_6insn_patch_entry {
  55         unsigned int    addr;
  56         unsigned int    insns[6];
  57 };
  58 extern struct popc_6insn_patch_entry __popc_6insn_patch,
  59         __popc_6insn_patch_end;
  60
  61 struct pause_patch_entry {
  62         unsigned int    addr;
  63         unsigned int    insns[3];
  64 };
  65 extern struct pause_patch_entry __pause_3insn_patch,
  66         __pause_3insn_patch_end;
  67
  68 void __init per_cpu_patch(void);
  69 void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  70                              struct sun4v_1insn_patch_entry *);
  71 void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  72                              struct sun4v_2insn_patch_entry *);
  73 void __init sun4v_patch(void);
  74 void __init boot_cpu_id_too_large(int cpu);
  75 extern unsigned int dcache_parity_tl1_occurred;
  76 extern unsigned int icache_parity_tl1_occurred;
  77
  78 asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  79 void timer_interrupt(int irq, struct pt_regs *regs);
  80
  81 void do_notify_resume(struct pt_regs *regs,
  82                       unsigned long orig_i0,
  83                       unsigned long thread_info_flags);
  84
  85 asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  86 asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  87
  88 void bad_trap_tl1(struct pt_regs *regs, long lvl);
  89
  90 void do_fpieee(struct pt_regs *regs);
  91 void do_fpother(struct pt_regs *regs);
  92 void do_tof(struct pt_regs *regs);
  93 void do_div0(struct pt_regs *regs);
  94 void do_illegal_instruction(struct pt_regs *regs);
  95 void mem_address_unaligned(struct pt_regs *regs,
  96                            unsigned long sfar,
  97                            unsigned long sfsr);
  98 void sun4v_do_mna(struct pt_regs *regs,
  99                   unsigned long addr,
 100                   unsigned long type_ctx);
 101 void do_privop(struct pt_regs *regs);
 102 void do_privact(struct pt_regs *regs);
 103 void do_cee(struct pt_regs *regs);
 104 void do_cee_tl1(struct pt_regs *regs);
 105 void do_dae_tl1(struct pt_regs *regs);
 106 void do_iae_tl1(struct pt_regs *regs);
 107 void do_div0_tl1(struct pt_regs *regs);
 108 void do_fpdis_tl1(struct pt_regs *regs);
 109 void do_fpieee_tl1(struct pt_regs *regs);
 110 void do_fpother_tl1(struct pt_regs *regs);
 111 void do_ill_tl1(struct pt_regs *regs);
 112 void do_irq_tl1(struct pt_regs *regs);
 113 void do_lddfmna_tl1(struct pt_regs *regs);
 114 void do_stdfmna_tl1(struct pt_regs *regs);
 115 void do_paw(struct pt_regs *regs);
 116 void do_paw_tl1(struct pt_regs *regs);
 117 void do_vaw(struct pt_regs *regs);
 118 void do_vaw_tl1(struct pt_regs *regs);
 119 void do_tof_tl1(struct pt_regs *regs);
 120 void do_getpsr(struct pt_regs *regs);
 121
 122 void spitfire_insn_access_exception(struct pt_regs *regs,
 123                                     unsigned long sfsr,
 124                                     unsigned long sfar);
 125 void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
 126                                         unsigned long sfsr,
 127                                         unsigned long sfar);
 128 void spitfire_data_access_exception(struct pt_regs *regs,
 129                                     unsigned long sfsr,
 130                                     unsigned long sfar);
 131 void spitfire_data_access_exception_tl1(struct pt_regs *regs,
 132                                         unsigned long sfsr,
 133                                         unsigned long sfar);
 134 void spitfire_access_error(struct pt_regs *regs,
 135                            unsigned long status_encoded,
 136                            unsigned long afar);
 137
 138 void cheetah_fecc_handler(struct pt_regs *regs,
 139                           unsigned long afsr,
 140                           unsigned long afar);
 141 void cheetah_cee_handler(struct pt_regs *regs,
 142                          unsigned long afsr,
 143                          unsigned long afar);
 144 void cheetah_deferred_handler(struct pt_regs *regs,
 145                               unsigned long afsr,
 146                               unsigned long afar);
 147 void cheetah_plus_parity_error(int type, struct pt_regs *regs);
 148
 149 void sun4v_insn_access_exception(struct pt_regs *regs,
 150                                  unsigned long addr,
 151                                  unsigned long type_ctx);
 152 void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
 153                                      unsigned long addr,
 154                                      unsigned long type_ctx);
 155 void sun4v_data_access_exception(struct pt_regs *regs,
 156                                  unsigned long addr,
 157                                  unsigned long type_ctx);
 158 void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 159                                      unsigned long addr,
 160                                      unsigned long type_ctx);
 161 void sun4v_resum_error(struct pt_regs *regs,
 162                        unsigned long offset);
 163 void sun4v_resum_overflow(struct pt_regs *regs);
 164 void sun4v_nonresum_error(struct pt_regs *regs,
 165                           unsigned long offset);
 166 void sun4v_nonresum_overflow(struct pt_regs *regs);
 167
 168 extern unsigned long sun4v_err_itlb_vaddr;
 169 extern unsigned long sun4v_err_itlb_ctx;
 170 extern unsigned long sun4v_err_itlb_pte;
 171 extern unsigned long sun4v_err_itlb_error;
 172
 173 void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 174
 175 extern unsigned long sun4v_err_dtlb_vaddr;
 176 extern unsigned long sun4v_err_dtlb_ctx;
 177 extern unsigned long sun4v_err_dtlb_pte;
 178 extern unsigned long sun4v_err_dtlb_error;
 179
 180 void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 181 void hypervisor_tlbop_error(unsigned long err,
 182                             unsigned long op);
 183 void hypervisor_tlbop_error_xcall(unsigned long err,
 184                                   unsigned long op);
 185
 186 /* WARNING: The error trap handlers in assembly know the precise
 187  *          layout of the following structure.
 188  *
 189  * C-level handlers in traps.c use this information to log the
 190  * error and then determine how to recover (if possible).
 191  */
 192 struct cheetah_err_info {
 193 /*0x00*/u64 afsr;
 194 /*0x08*/u64 afar;
 195
 196         /* D-cache state */
 197 /*0x10*/u64 dcache_data[4];     /* The actual data      */
 198 /*0x30*/u64 dcache_index;       /* D-cache index        */
 199 /*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
 200 /*0x40*/u64 dcache_utag;        /* D-cache microtag     */
 201 /*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
 202
 203         /* I-cache state */
 204 /*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
 205 /*0x90*/u64 icache_index;       /* I-cache index        */
 206 /*0x98*/u64 icache_tag;         /* I-cache phys tag     */
 207 /*0xa0*/u64 icache_utag;        /* I-cache microtag     */
 208 /*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
 209 /*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
 210 /*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
 211
 212         /* E-cache state */
 213 /*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
 214 /*0xe0*/u64 ecache_index;       /* E-cache index        */
 215 /*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
 216
 217 /*0xf0*/u64 __pad[32 - 30];
 218 };
 219 #define CHAFSR_INVALID          ((u64)-1L)
 220
 221 /* This is allocated at boot time based upon the largest hardware
 222  * cpu ID in the system.  We allocate two entries per cpu, one for
 223  * TL==0 logging and one for TL >= 1 logging.
 224  */
 225 extern struct cheetah_err_info *cheetah_error_log;
 226
 227 /* UPA nodes send interrupt packet to UltraSparc with first data reg
 228  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
 229  * delivered.  We must translate this into a non-vector IRQ so we can
 230  * set the softint on this cpu.
 231  *
 232  * To make processing these packets efficient and race free we use
 233  * an array of irq buckets below.  The interrupt vector handler in
 234  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
 235  *
 236  * If you make changes to ino_bucket, please update hand coded assembler
 237  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
 238  */
 239 struct ino_bucket {
 240 /*0x00*/unsigned long __irq_chain_pa;
 241
 242         /* Interrupt number assigned to this INO.  */
 243 /*0x08*/unsigned int __irq;
 244 /*0x0c*/unsigned int __pad;
 245 };
 246
 247 extern struct ino_bucket *ivector_table;
 248 extern unsigned long ivector_table_pa;
 249
 250 void init_irqwork_curcpu(void);
 251 void sun4v_register_mondo_queues(int this_cpu);
 252
 253 #endif /* CONFIG_SPARC32 */
 254 #endif /* _ENTRY_H */