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