LXR linux/arch/sparc/kernel/entry.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ENTRY_H
   3#define _ENTRY_H
   4
   5#include <linux/kernel.h>
   6#include <linux/types.h>
   7#include <linux/init.h>
   8
   9/* irq */
  10void handler_irq(int irq, struct pt_regs *regs);
  11
  12#ifdef CONFIG_SPARC32
  13/* traps */
  14void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
  15void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
  16                            unsigned long npc, unsigned long psr);
  17
  18void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
  19                         unsigned long npc, unsigned long psr);
  20void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
  21                            unsigned long npc, unsigned long psr);
  22void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
  23                 unsigned long npc, unsigned long psr);
  24void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
  25                 unsigned long npc, unsigned long psr);
  26void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
  27                         unsigned long npc, unsigned long psr);
  28void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
  29                       unsigned long npc, unsigned long psr);
  30void handle_reg_access(struct pt_regs *regs, unsigned long pc,
  31                       unsigned long npc, unsigned long psr);
  32void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
  33                        unsigned long npc, unsigned long psr);
  34void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
  35                         unsigned long npc, unsigned long psr);
  36
  37
  38
  39/* entry.S */
  40void fpsave(unsigned long *fpregs, unsigned long *fsr,
  41            void *fpqueue, unsigned long *fpqdepth);
  42void 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
  62struct pause_patch_entry {
  63        unsigned int    addr;
  64        unsigned int    insns[3];
  65};
  66extern struct pause_patch_entry __pause_3insn_patch,
  67        __pause_3insn_patch_end;
  68
  69void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  70                             struct sun4v_1insn_patch_entry *);
  71void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  72                             struct sun4v_2insn_patch_entry *);
  73void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  74                             struct sun4v_2insn_patch_entry *);
  75extern unsigned int dcache_parity_tl1_occurred;
  76extern unsigned int icache_parity_tl1_occurred;
  77
  78asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  79void timer_interrupt(int irq, struct pt_regs *regs);
  80
  81void do_notify_resume(struct pt_regs *regs,
  82                      unsigned long orig_i0,
  83                      unsigned long thread_info_flags);
  84
  85asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  86asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  87
  88void bad_trap_tl1(struct pt_regs *regs, long lvl);
  89
  90void do_fpieee(struct pt_regs *regs);
  91void do_fpother(struct pt_regs *regs);
  92void do_tof(struct pt_regs *regs);
  93void do_div0(struct pt_regs *regs);
  94void do_illegal_instruction(struct pt_regs *regs);
  95void mem_address_unaligned(struct pt_regs *regs,
  96                           unsigned long sfar,
  97                           unsigned long sfsr);
  98void sun4v_do_mna(struct pt_regs *regs,
  99                  unsigned long addr,
 100                  unsigned long type_ctx);
 101void do_privop(struct pt_regs *regs);
 102void do_privact(struct pt_regs *regs);
 103void do_cee(struct pt_regs *regs);
 104void do_div0_tl1(struct pt_regs *regs);
 105void do_fpieee_tl1(struct pt_regs *regs);
 106void do_fpother_tl1(struct pt_regs *regs);
 107void do_ill_tl1(struct pt_regs *regs);
 108void do_irq_tl1(struct pt_regs *regs);
 109void do_lddfmna_tl1(struct pt_regs *regs);
 110void do_stdfmna_tl1(struct pt_regs *regs);
 111void do_paw(struct pt_regs *regs);
 112void do_paw_tl1(struct pt_regs *regs);
 113void do_vaw(struct pt_regs *regs);
 114void do_vaw_tl1(struct pt_regs *regs);
 115void do_tof_tl1(struct pt_regs *regs);
 116void do_getpsr(struct pt_regs *regs);
 117
 118void spitfire_insn_access_exception(struct pt_regs *regs,
 119                                    unsigned long sfsr,
 120                                    unsigned long sfar);
 121void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
 122                                        unsigned long sfsr,
 123                                        unsigned long sfar);
 124void spitfire_data_access_exception(struct pt_regs *regs,
 125                                    unsigned long sfsr,
 126                                    unsigned long sfar);
 127void spitfire_data_access_exception_tl1(struct pt_regs *regs,
 128                                        unsigned long sfsr,
 129                                        unsigned long sfar);
 130void spitfire_access_error(struct pt_regs *regs,
 131                           unsigned long status_encoded,
 132                           unsigned long afar);
 133
 134void cheetah_fecc_handler(struct pt_regs *regs,
 135                          unsigned long afsr,
 136                          unsigned long afar);
 137void cheetah_cee_handler(struct pt_regs *regs,
 138                         unsigned long afsr,
 139                         unsigned long afar);
 140void cheetah_deferred_handler(struct pt_regs *regs,
 141                              unsigned long afsr,
 142                              unsigned long afar);
 143void cheetah_plus_parity_error(int type, struct pt_regs *regs);
 144
 145void sun4v_insn_access_exception(struct pt_regs *regs,
 146                                 unsigned long addr,
 147                                 unsigned long type_ctx);
 148void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
 149                                     unsigned long addr,
 150                                     unsigned long type_ctx);
 151void sun4v_data_access_exception(struct pt_regs *regs,
 152                                 unsigned long addr,
 153                                 unsigned long type_ctx);
 154void sun4v_data_access_exception_tl1(struct pt_regs *regs,
 155                                     unsigned long addr,
 156                                     unsigned long type_ctx);
 157void sun4v_resum_error(struct pt_regs *regs,
 158                       unsigned long offset);
 159void sun4v_resum_overflow(struct pt_regs *regs);
 160void sun4v_nonresum_error(struct pt_regs *regs,
 161                          unsigned long offset);
 162void sun4v_nonresum_overflow(struct pt_regs *regs);
 163void sun4v_mem_corrupt_detect_precise(struct pt_regs *regs,
 164                                      unsigned long addr,
 165                                      unsigned long context);
 166
 167extern unsigned long sun4v_err_itlb_vaddr;
 168extern unsigned long sun4v_err_itlb_ctx;
 169extern unsigned long sun4v_err_itlb_pte;
 170extern unsigned long sun4v_err_itlb_error;
 171
 172void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 173
 174extern unsigned long sun4v_err_dtlb_vaddr;
 175extern unsigned long sun4v_err_dtlb_ctx;
 176extern unsigned long sun4v_err_dtlb_pte;
 177extern unsigned long sun4v_err_dtlb_error;
 178
 179void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
 180void hypervisor_tlbop_error(unsigned long err,
 181                            unsigned long op);
 182void hypervisor_tlbop_error_xcall(unsigned long err,
 183                                  unsigned long op);
 184
 185/* WARNING: The error trap handlers in assembly know the precise
 186 *          layout of the following structure.
 187 *
 188 * C-level handlers in traps.c use this information to log the
 189 * error and then determine how to recover (if possible).
 190 */
 191struct cheetah_err_info {
 192/*0x00*/u64 afsr;
 193/*0x08*/u64 afar;
 194
 195        /* D-cache state */
 196/*0x10*/u64 dcache_data[4];     /* The actual data      */
 197/*0x30*/u64 dcache_index;       /* D-cache index        */
 198/*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
 199/*0x40*/u64 dcache_utag;        /* D-cache microtag     */
 200/*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
 201
 202        /* I-cache state */
 203/*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
 204/*0x90*/u64 icache_index;       /* I-cache index        */
 205/*0x98*/u64 icache_tag;         /* I-cache phys tag     */
 206/*0xa0*/u64 icache_utag;        /* I-cache microtag     */
 207/*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
 208/*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
 209/*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
 210
 211        /* E-cache state */
 212/*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
 213/*0xe0*/u64 ecache_index;       /* E-cache index        */
 214/*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
 215
 216/*0xf0*/u64 __pad[32 - 30];
 217};
 218#define CHAFSR_INVALID          ((u64)-1L)
 219
 220/* This is allocated at boot time based upon the largest hardware
 221 * cpu ID in the system.  We allocate two entries per cpu, one for
 222 * TL==0 logging and one for TL >= 1 logging.
 223 */
 224extern struct cheetah_err_info *cheetah_error_log;
 225
 226/* UPA nodes send interrupt packet to UltraSparc with first data reg
 227 * value low 5 (7 on Starfire) bits holding the IRQ identifier being
 228 * delivered.  We must translate this into a non-vector IRQ so we can
 229 * set the softint on this cpu.
 230 *
 231 * To make processing these packets efficient and race free we use
 232 * an array of irq buckets below.  The interrupt vector handler in
 233 * entry.S feeds incoming packets into per-cpu pil-indexed lists.
 234 *
 235 * If you make changes to ino_bucket, please update hand coded assembler
 236 * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
 237 */
 238struct ino_bucket {
 239/*0x00*/unsigned long __irq_chain_pa;
 240
 241        /* Interrupt number assigned to this INO.  */
 242/*0x08*/unsigned int __irq;
 243/*0x0c*/unsigned int __pad;
 244};
 245
 246extern struct ino_bucket *ivector_table;
 247extern unsigned long ivector_table_pa;
 248
 249void init_irqwork_curcpu(void);
 250void sun4v_register_mondo_queues(int this_cpu);
 251
 252#endif /* CONFIG_SPARC32 */
 253#endif /* _ENTRY_H */
 254