arch/sparc64/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 extern const char *sparc_cpu_type;
   9 extern const char *sparc_fpu_type;
  10
  11 extern void __init per_cpu_patch(void);
  12 extern void __init sun4v_patch(void);
  13 extern void __init boot_cpu_id_too_large(int cpu);
  14 extern unsigned int dcache_parity_tl1_occurred;
  15 extern unsigned int icache_parity_tl1_occurred;
  16
  17 extern asmlinkage void update_perfctrs(void);
  18 extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  19 extern void timer_interrupt(int irq, struct pt_regs *regs);
  20
  21 extern void do_notify_resume(struct pt_regs *regs,
  22                              unsigned long orig_i0,
  23                              unsigned long thread_info_flags);
  24
  25 extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  26 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  27
  28 extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
  29
  30 extern void do_fpe_common(struct pt_regs *regs);
  31 extern void do_fpieee(struct pt_regs *regs);
  32 extern void do_fpother(struct pt_regs *regs);
  33 extern void do_tof(struct pt_regs *regs);
  34 extern void do_div0(struct pt_regs *regs);
  35 extern void do_illegal_instruction(struct pt_regs *regs);
  36 extern void mem_address_unaligned(struct pt_regs *regs,
  37                                   unsigned long sfar,
  38                                   unsigned long sfsr);
  39 extern void sun4v_do_mna(struct pt_regs *regs,
  40                          unsigned long addr,
  41                          unsigned long type_ctx);
  42 extern void do_privop(struct pt_regs *regs);
  43 extern void do_privact(struct pt_regs *regs);
  44 extern void do_cee(struct pt_regs *regs);
  45 extern void do_cee_tl1(struct pt_regs *regs);
  46 extern void do_dae_tl1(struct pt_regs *regs);
  47 extern void do_iae_tl1(struct pt_regs *regs);
  48 extern void do_div0_tl1(struct pt_regs *regs);
  49 extern void do_fpdis_tl1(struct pt_regs *regs);
  50 extern void do_fpieee_tl1(struct pt_regs *regs);
  51 extern void do_fpother_tl1(struct pt_regs *regs);
  52 extern void do_ill_tl1(struct pt_regs *regs);
  53 extern void do_irq_tl1(struct pt_regs *regs);
  54 extern void do_lddfmna_tl1(struct pt_regs *regs);
  55 extern void do_stdfmna_tl1(struct pt_regs *regs);
  56 extern void do_paw(struct pt_regs *regs);
  57 extern void do_paw_tl1(struct pt_regs *regs);
  58 extern void do_vaw(struct pt_regs *regs);
  59 extern void do_vaw_tl1(struct pt_regs *regs);
  60 extern void do_tof_tl1(struct pt_regs *regs);
  61 extern void do_getpsr(struct pt_regs *regs);
  62
  63 extern void spitfire_insn_access_exception(struct pt_regs *regs,
  64                                            unsigned long sfsr,
  65                                            unsigned long sfar);
  66 extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
  67                                                unsigned long sfsr,
  68                                                unsigned long sfar);
  69 extern void spitfire_data_access_exception(struct pt_regs *regs,
  70                                            unsigned long sfsr,
  71                                            unsigned long sfar);
  72 extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
  73                                                unsigned long sfsr,
  74                                                unsigned long sfar);
  75 extern void spitfire_access_error(struct pt_regs *regs,
  76                                   unsigned long status_encoded,
  77                                   unsigned long afar);
  78
  79 extern void cheetah_fecc_handler(struct pt_regs *regs,
  80                                  unsigned long afsr,
  81                                  unsigned long afar);
  82 extern void cheetah_cee_handler(struct pt_regs *regs,
  83                                 unsigned long afsr,
  84                                 unsigned long afar);
  85 extern void cheetah_deferred_handler(struct pt_regs *regs,
  86                                      unsigned long afsr,
  87                                      unsigned long afar);
  88 extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
  89
  90 extern void sun4v_insn_access_exception(struct pt_regs *regs,
  91                                         unsigned long addr,
  92                                         unsigned long type_ctx);
  93 extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
  94                                             unsigned long addr,
  95                                             unsigned long type_ctx);
  96 extern void sun4v_data_access_exception(struct pt_regs *regs,
  97                                         unsigned long addr,
  98                                         unsigned long type_ctx);
  99 extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 100                                             unsigned long addr,
 101                                             unsigned long type_ctx);
 102 extern void sun4v_resum_error(struct pt_regs *regs,
 103                               unsigned long offset);
 104 extern void sun4v_resum_overflow(struct pt_regs *regs);
 105 extern void sun4v_nonresum_error(struct pt_regs *regs,
 106                                  unsigned long offset);
 107 extern void sun4v_nonresum_overflow(struct pt_regs *regs);
 108
 109 extern unsigned long sun4v_err_itlb_vaddr;
 110 extern unsigned long sun4v_err_itlb_ctx;
 111 extern unsigned long sun4v_err_itlb_pte;
 112 extern unsigned long sun4v_err_itlb_error;
 113
 114 extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 115
 116 extern unsigned long sun4v_err_dtlb_vaddr;
 117 extern unsigned long sun4v_err_dtlb_ctx;
 118 extern unsigned long sun4v_err_dtlb_pte;
 119 extern unsigned long sun4v_err_dtlb_error;
 120
 121 extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 122 extern void hypervisor_tlbop_error(unsigned long err,
 123                                    unsigned long op);
 124 extern void hypervisor_tlbop_error_xcall(unsigned long err,
 125                                          unsigned long op);
 126
 127 /* WARNING: The error trap handlers in assembly know the precise
 128  *          layout of the following structure.
 129  *
 130  * C-level handlers in traps.c use this information to log the
 131  * error and then determine how to recover (if possible).
 132  */
 133 struct cheetah_err_info {
 134 /*0x00*/u64 afsr;
 135 /*0x08*/u64 afar;
 136
 137         /* D-cache state */
 138 /*0x10*/u64 dcache_data[4];     /* The actual data      */
 139 /*0x30*/u64 dcache_index;       /* D-cache index        */
 140 /*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
 141 /*0x40*/u64 dcache_utag;        /* D-cache microtag     */
 142 /*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
 143
 144         /* I-cache state */
 145 /*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
 146 /*0x90*/u64 icache_index;       /* I-cache index        */
 147 /*0x98*/u64 icache_tag;         /* I-cache phys tag     */
 148 /*0xa0*/u64 icache_utag;        /* I-cache microtag     */
 149 /*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
 150 /*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
 151 /*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
 152
 153         /* E-cache state */
 154 /*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
 155 /*0xe0*/u64 ecache_index;       /* E-cache index        */
 156 /*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
 157
 158 /*0xf0*/u64 __pad[32 - 30];
 159 };
 160 #define CHAFSR_INVALID          ((u64)-1L)
 161
 162 /* This is allocated at boot time based upon the largest hardware
 163  * cpu ID in the system.  We allocate two entries per cpu, one for
 164  * TL==0 logging and one for TL >= 1 logging.
 165  */
 166 extern struct cheetah_err_info *cheetah_error_log;
 167
 168 /* UPA nodes send interrupt packet to UltraSparc with first data reg
 169  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
 170  * delivered.  We must translate this into a non-vector IRQ so we can
 171  * set the softint on this cpu.
 172  *
 173  * To make processing these packets efficient and race free we use
 174  * an array of irq buckets below.  The interrupt vector handler in
 175  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
 176  *
 177  * If you make changes to ino_bucket, please update hand coded assembler
 178  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
 179  */
 180 struct ino_bucket {
 181 /*0x00*/unsigned long __irq_chain_pa;
 182
 183         /* Virtual interrupt number assigned to this INO.  */
 184 /*0x08*/unsigned int __virt_irq;
 185 /*0x0c*/unsigned int __pad;
 186 };
 187
 188 extern struct ino_bucket *ivector_table;
 189 extern unsigned long ivector_table_pa;
 190
 191 extern void handler_irq(int irq, struct pt_regs *regs);
 192 extern void init_irqwork_curcpu(void);
 193 extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
 194
 195 #endif /* _ENTRY_H */