LXR linux/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 */
   9extern void handler_irq(int irq, struct pt_regs *regs);
  10
  11#ifdef CONFIG_SPARC32
  12/* traps */
  13extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
  14extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
  15                                   unsigned long npc, unsigned long psr);
  16
  17extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
  18                                unsigned long npc, unsigned long psr);
  19extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
  20                                   unsigned long npc,
  21                                   unsigned long psr);
  22extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
  23                        unsigned long npc, unsigned long psr);
  24extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
  25                        unsigned long npc, unsigned long psr);
  26extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
  27                                unsigned long npc, unsigned long psr);
  28extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
  29                              unsigned long npc, unsigned long psr);
  30extern void handle_reg_access(struct pt_regs *regs, unsigned long pc,
  31                              unsigned long npc, unsigned long psr);
  32extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
  33                               unsigned long npc, unsigned long psr);
  34extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
  35                                unsigned long npc, unsigned long psr);
  36
  37
  38
  39/* entry.S */
  40extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
  41                   void *fpqueue, unsigned long *fpqdepth);
  42extern void fpload(unsigned long *fpregs, unsigned long *fsr);
  43
  44#else /* CONFIG_SPARC32 */
  45
  46#include <asm/trap_block.h>
  47
  48struct popc_3insn_patch_entry {
  49        unsigned int    addr;
  50        unsigned int    insns[3];
  51};
  52extern struct popc_3insn_patch_entry __popc_3insn_patch,
  53        __popc_3insn_patch_end;
  54
  55struct popc_6insn_patch_entry {
  56        unsigned int    addr;
  57        unsigned int    insns[6];
  58};
  59extern struct popc_6insn_patch_entry __popc_6insn_patch,
  60        __popc_6insn_patch_end;
  61
  62extern void __init per_cpu_patch(void);
  63extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  64                                    struct sun4v_1insn_patch_entry *);
  65extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  66                                    struct sun4v_2insn_patch_entry *);
  67extern void __init sun4v_patch(void);
  68extern void __init boot_cpu_id_too_large(int cpu);
  69extern unsigned int dcache_parity_tl1_occurred;
  70extern unsigned int icache_parity_tl1_occurred;
  71
  72extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  73extern void timer_interrupt(int irq, struct pt_regs *regs);
  74
  75extern void do_notify_resume(struct pt_regs *regs,
  76                             unsigned long orig_i0,
  77                             unsigned long thread_info_flags);
  78
  79extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  80extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  81
  82extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
  83
  84extern void do_fpe_common(struct pt_regs *regs);
  85extern void do_fpieee(struct pt_regs *regs);
  86extern void do_fpother(struct pt_regs *regs);
  87extern void do_tof(struct pt_regs *regs);
  88extern void do_div0(struct pt_regs *regs);
  89extern void do_illegal_instruction(struct pt_regs *regs);
  90extern void mem_address_unaligned(struct pt_regs *regs,
  91                                  unsigned long sfar,
  92                                  unsigned long sfsr);
  93extern void sun4v_do_mna(struct pt_regs *regs,
  94                         unsigned long addr,
  95                         unsigned long type_ctx);
  96extern void do_privop(struct pt_regs *regs);
  97extern void do_privact(struct pt_regs *regs);
  98extern void do_cee(struct pt_regs *regs);
  99extern void do_cee_tl1(struct pt_regs *regs);
 100extern void do_dae_tl1(struct pt_regs *regs);
 101extern void do_iae_tl1(struct pt_regs *regs);
 102extern void do_div0_tl1(struct pt_regs *regs);
 103extern void do_fpdis_tl1(struct pt_regs *regs);
 104extern void do_fpieee_tl1(struct pt_regs *regs);
 105extern void do_fpother_tl1(struct pt_regs *regs);
 106extern void do_ill_tl1(struct pt_regs *regs);
 107extern void do_irq_tl1(struct pt_regs *regs);
 108extern void do_lddfmna_tl1(struct pt_regs *regs);
 109extern void do_stdfmna_tl1(struct pt_regs *regs);
 110extern void do_paw(struct pt_regs *regs);
 111extern void do_paw_tl1(struct pt_regs *regs);
 112extern void do_vaw(struct pt_regs *regs);
 113extern void do_vaw_tl1(struct pt_regs *regs);
 114extern void do_tof_tl1(struct pt_regs *regs);
 115extern void do_getpsr(struct pt_regs *regs);
 116
 117extern void spitfire_insn_access_exception(struct pt_regs *regs,
 118                                           unsigned long sfsr,
 119                                           unsigned long sfar);
 120extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
 121                                               unsigned long sfsr,
 122                                               unsigned long sfar);
 123extern void spitfire_data_access_exception(struct pt_regs *regs,
 124                                           unsigned long sfsr,
 125                                           unsigned long sfar);
 126extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
 127                                               unsigned long sfsr,
 128                                               unsigned long sfar);
 129extern void spitfire_access_error(struct pt_regs *regs,
 130                                  unsigned long status_encoded,
 131                                  unsigned long afar);
 132
 133extern void cheetah_fecc_handler(struct pt_regs *regs,
 134                                 unsigned long afsr,
 135                                 unsigned long afar);
 136extern void cheetah_cee_handler(struct pt_regs *regs,
 137                                unsigned long afsr,
 138                                unsigned long afar);
 139extern void cheetah_deferred_handler(struct pt_regs *regs,
 140                                     unsigned long afsr,
 141                                     unsigned long afar);
 142extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
 143
 144extern void sun4v_insn_access_exception(struct pt_regs *regs,
 145                                        unsigned long addr,
 146                                        unsigned long type_ctx);
 147extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
 148                                            unsigned long addr,
 149                                            unsigned long type_ctx);
 150extern void sun4v_data_access_exception(struct pt_regs *regs,
 151                                        unsigned long addr,
 152                                        unsigned long type_ctx);
 153extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 154                                            unsigned long addr,
 155                                            unsigned long type_ctx);
 156extern void sun4v_resum_error(struct pt_regs *regs,
 157                              unsigned long offset);
 158extern void sun4v_resum_overflow(struct pt_regs *regs);
 159extern void sun4v_nonresum_error(struct pt_regs *regs,
 160                                 unsigned long offset);
 161extern void sun4v_nonresum_overflow(struct pt_regs *regs);
 162
 163extern unsigned long sun4v_err_itlb_vaddr;
 164extern unsigned long sun4v_err_itlb_ctx;
 165extern unsigned long sun4v_err_itlb_pte;
 166extern unsigned long sun4v_err_itlb_error;
 167
 168extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 169
 170extern unsigned long sun4v_err_dtlb_vaddr;
 171extern unsigned long sun4v_err_dtlb_ctx;
 172extern unsigned long sun4v_err_dtlb_pte;
 173extern unsigned long sun4v_err_dtlb_error;
 174
 175extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 176extern void hypervisor_tlbop_error(unsigned long err,
 177                                   unsigned long op);
 178extern void hypervisor_tlbop_error_xcall(unsigned long err,
 179                                         unsigned long op);
 180
 181/* WARNING: The error trap handlers in assembly know the precise
 182 *          layout of the following structure.
 183 *
 184 * C-level handlers in traps.c use this information to log the
 185 * error and then determine how to recover (if possible).
 186 */
 187struct cheetah_err_info {
 188/*0x00*/u64 afsr;
 189/*0x08*/u64 afar;
 190
 191        /* D-cache state */
 192/*0x10*/u64 dcache_data[4];     /* The actual data      */
 193/*0x30*/u64 dcache_index;       /* D-cache index        */
 194/*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
 195/*0x40*/u64 dcache_utag;        /* D-cache microtag     */
 196/*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
 197
 198        /* I-cache state */
 199/*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
 200/*0x90*/u64 icache_index;       /* I-cache index        */
 201/*0x98*/u64 icache_tag;         /* I-cache phys tag     */
 202/*0xa0*/u64 icache_utag;        /* I-cache microtag     */
 203/*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
 204/*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
 205/*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
 206
 207        /* E-cache state */
 208/*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
 209/*0xe0*/u64 ecache_index;       /* E-cache index        */
 210/*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
 211
 212/*0xf0*/u64 __pad[32 - 30];
 213};
 214#define CHAFSR_INVALID          ((u64)-1L)
 215
 216/* This is allocated at boot time based upon the largest hardware
 217 * cpu ID in the system.  We allocate two entries per cpu, one for
 218 * TL==0 logging and one for TL >= 1 logging.
 219 */
 220extern struct cheetah_err_info *cheetah_error_log;
 221
 222/* UPA nodes send interrupt packet to UltraSparc with first data reg
 223 * value low 5 (7 on Starfire) bits holding the IRQ identifier being
 224 * delivered.  We must translate this into a non-vector IRQ so we can
 225 * set the softint on this cpu.
 226 *
 227 * To make processing these packets efficient and race free we use
 228 * an array of irq buckets below.  The interrupt vector handler in
 229 * entry.S feeds incoming packets into per-cpu pil-indexed lists.
 230 *
 231 * If you make changes to ino_bucket, please update hand coded assembler
 232 * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
 233 */
 234struct ino_bucket {
 235/*0x00*/unsigned long __irq_chain_pa;
 236
 237        /* Interrupt number assigned to this INO.  */
 238/*0x08*/unsigned int __irq;
 239/*0x0c*/unsigned int __pad;
 240};
 241
 242extern struct ino_bucket *ivector_table;
 243extern unsigned long ivector_table_pa;
 244
 245extern void init_irqwork_curcpu(void);
 246extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
 247
 248#endif /* CONFIG_SPARC32 */
 249#endif /* _ENTRY_H */
 250