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 */
   9void handler_irq(int irq, struct pt_regs *regs);
  10
  11#ifdef CONFIG_SPARC32
  12/* traps */
  13void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
  14void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
  15                            unsigned long npc, unsigned long psr);
  16
  17void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
  18                         unsigned long npc, unsigned long psr);
  19void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
  20                            unsigned long npc, unsigned long psr);
  21void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
  22                 unsigned long npc, unsigned long psr);
  23void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
  24                 unsigned long npc, unsigned long psr);
  25void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
  26                         unsigned long npc, unsigned long psr);
  27void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
  28                       unsigned long npc, unsigned long psr);
  29void handle_reg_access(struct pt_regs *regs, unsigned long pc,
  30                       unsigned long npc, unsigned long psr);
  31void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
  32                        unsigned long npc, unsigned long psr);
  33void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
  34                         unsigned long npc, unsigned long psr);
  35
  36
  37
  38/* entry.S */
  39void fpsave(unsigned long *fpregs, unsigned long *fsr,
  40            void *fpqueue, unsigned long *fpqdepth);
  41void fpload(unsigned long *fpregs, unsigned long *fsr);
  42
  43#else /* CONFIG_SPARC32 */
  44
  45#include <asm/trap_block.h>
  46
  47struct popc_3insn_patch_entry {
  48        unsigned int    addr;
  49        unsigned int    insns[3];
  50};
  51extern struct popc_3insn_patch_entry __popc_3insn_patch,
  52        __popc_3insn_patch_end;
  53
  54struct popc_6insn_patch_entry {
  55        unsigned int    addr;
  56        unsigned int    insns[6];
  57};
  58extern struct popc_6insn_patch_entry __popc_6insn_patch,
  59        __popc_6insn_patch_end;
  60
  61struct pause_patch_entry {
  62        unsigned int    addr;
  63        unsigned int    insns[3];
  64};
  65extern struct pause_patch_entry __pause_3insn_patch,
  66        __pause_3insn_patch_end;
  67
  68void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  69                             struct sun4v_1insn_patch_entry *);
  70void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  71                             struct sun4v_2insn_patch_entry *);
  72void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  73                             struct sun4v_2insn_patch_entry *);
  74extern unsigned int dcache_parity_tl1_occurred;
  75extern unsigned int icache_parity_tl1_occurred;
  76
  77asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  78void timer_interrupt(int irq, struct pt_regs *regs);
  79
  80void do_notify_resume(struct pt_regs *regs,
  81                      unsigned long orig_i0,
  82                      unsigned long thread_info_flags);
  83
  84asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  85asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  86
  87void bad_trap_tl1(struct pt_regs *regs, long lvl);
  88
  89void do_fpieee(struct pt_regs *regs);
  90void do_fpother(struct pt_regs *regs);
  91void do_tof(struct pt_regs *regs);
  92void do_div0(struct pt_regs *regs);
  93void do_illegal_instruction(struct pt_regs *regs);
  94void mem_address_unaligned(struct pt_regs *regs,
  95                           unsigned long sfar,
  96                           unsigned long sfsr);
  97void sun4v_do_mna(struct pt_regs *regs,
  98                  unsigned long addr,
  99                  unsigned long type_ctx);
 100void do_privop(struct pt_regs *regs);
 101void do_privact(struct pt_regs *regs);
 102void do_cee(struct pt_regs *regs);
 103void do_div0_tl1(struct pt_regs *regs);
 104void do_fpieee_tl1(struct pt_regs *regs);
 105void do_fpother_tl1(struct pt_regs *regs);
 106void do_ill_tl1(struct pt_regs *regs);
 107void do_irq_tl1(struct pt_regs *regs);
 108void do_lddfmna_tl1(struct pt_regs *regs);
 109void do_stdfmna_tl1(struct pt_regs *regs);
 110void do_paw(struct pt_regs *regs);
 111void do_paw_tl1(struct pt_regs *regs);
 112void do_vaw(struct pt_regs *regs);
 113void do_vaw_tl1(struct pt_regs *regs);
 114void do_tof_tl1(struct pt_regs *regs);
 115void do_getpsr(struct pt_regs *regs);
 116
 117void spitfire_insn_access_exception(struct pt_regs *regs,
 118                                    unsigned long sfsr,
 119                                    unsigned long sfar);
 120void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
 121                                        unsigned long sfsr,
 122                                        unsigned long sfar);
 123void spitfire_data_access_exception(struct pt_regs *regs,
 124                                    unsigned long sfsr,
 125                                    unsigned long sfar);
 126void spitfire_data_access_exception_tl1(struct pt_regs *regs,
 127                                        unsigned long sfsr,
 128                                        unsigned long sfar);
 129void spitfire_access_error(struct pt_regs *regs,
 130                           unsigned long status_encoded,
 131                           unsigned long afar);
 132
 133void cheetah_fecc_handler(struct pt_regs *regs,
 134                          unsigned long afsr,
 135                          unsigned long afar);
 136void cheetah_cee_handler(struct pt_regs *regs,
 137                         unsigned long afsr,
 138                         unsigned long afar);
 139void cheetah_deferred_handler(struct pt_regs *regs,
 140                              unsigned long afsr,
 141                              unsigned long afar);
 142void cheetah_plus_parity_error(int type, struct pt_regs *regs);
 143
 144void sun4v_insn_access_exception(struct pt_regs *regs,
 145                                 unsigned long addr,
 146                                 unsigned long type_ctx);
 147void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
 148                                     unsigned long addr,
 149                                     unsigned long type_ctx);
 150void sun4v_data_access_exception(struct pt_regs *regs,
 151                                 unsigned long addr,
 152                                 unsigned long type_ctx);
 153void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 154                                     unsigned long addr,
 155                                     unsigned long type_ctx);
 156void sun4v_resum_error(struct pt_regs *regs,
 157                       unsigned long offset);
 158void sun4v_resum_overflow(struct pt_regs *regs);
 159void sun4v_nonresum_error(struct pt_regs *regs,
 160                          unsigned long offset);
 161void 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
 168void 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
 175void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 176void hypervisor_tlbop_error(unsigned long err,
 177                            unsigned long op);
 178void 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
 245void init_irqwork_curcpu(void);
 246void sun4v_register_mondo_queues(int this_cpu);
 247
 248#endif /* CONFIG_SPARC32 */
 249#endif /* _ENTRY_H */
 250