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