entry.h 8.7 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef _ENTRY_H
  3. #define _ENTRY_H
  4. #include <linux/kernel.h>
  5. #include <linux/types.h>
  6. #include <linux/init.h>
  7. /* irq */
  8. void handler_irq(int irq, struct pt_regs *regs);
  9. #ifdef CONFIG_SPARC32
  10. /* traps */
  11. void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
  12. void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
  13. unsigned long npc, unsigned long psr);
  14. void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
  15. unsigned long npc, unsigned long psr);
  16. void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
  17. unsigned long npc, unsigned long psr);
  18. void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
  19. unsigned long npc, unsigned long psr);
  20. void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
  21. unsigned long npc, unsigned long psr);
  22. void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
  23. unsigned long npc, unsigned long psr);
  24. void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
  25. unsigned long npc, unsigned long psr);
  26. void handle_reg_access(struct pt_regs *regs, unsigned long pc,
  27. unsigned long npc, unsigned long psr);
  28. void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
  29. unsigned long npc, unsigned long psr);
  30. void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
  31. unsigned long npc, unsigned long psr);
  32. /* entry.S */
  33. void fpsave(unsigned long *fpregs, unsigned long *fsr,
  34. void *fpqueue, unsigned long *fpqdepth);
  35. void fpload(unsigned long *fpregs, unsigned long *fsr);
  36. #else /* CONFIG_SPARC32 */
  37. #include <asm/trap_block.h>
  38. struct popc_3insn_patch_entry {
  39. unsigned int addr;
  40. unsigned int insns[3];
  41. };
  42. extern struct popc_3insn_patch_entry __popc_3insn_patch,
  43. __popc_3insn_patch_end;
  44. struct popc_6insn_patch_entry {
  45. unsigned int addr;
  46. unsigned int insns[6];
  47. };
  48. extern struct popc_6insn_patch_entry __popc_6insn_patch,
  49. __popc_6insn_patch_end;
  50. struct pause_patch_entry {
  51. unsigned int addr;
  52. unsigned int insns[3];
  53. };
  54. extern struct pause_patch_entry __pause_3insn_patch,
  55. __pause_3insn_patch_end;
  56. void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
  57. struct sun4v_1insn_patch_entry *);
  58. void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  59. struct sun4v_2insn_patch_entry *);
  60. void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *,
  61. struct sun4v_2insn_patch_entry *);
  62. extern unsigned int dcache_parity_tl1_occurred;
  63. extern unsigned int icache_parity_tl1_occurred;
  64. asmlinkage void sparc_breakpoint(struct pt_regs *regs);
  65. void timer_interrupt(int irq, struct pt_regs *regs);
  66. void do_notify_resume(struct pt_regs *regs,
  67. unsigned long orig_i0,
  68. unsigned long thread_info_flags);
  69. asmlinkage int syscall_trace_enter(struct pt_regs *regs);
  70. asmlinkage void syscall_trace_leave(struct pt_regs *regs);
  71. void bad_trap_tl1(struct pt_regs *regs, long lvl);
  72. void do_fpieee(struct pt_regs *regs);
  73. void do_fpother(struct pt_regs *regs);
  74. void do_tof(struct pt_regs *regs);
  75. void do_div0(struct pt_regs *regs);
  76. void do_illegal_instruction(struct pt_regs *regs);
  77. void mem_address_unaligned(struct pt_regs *regs,
  78. unsigned long sfar,
  79. unsigned long sfsr);
  80. void sun4v_do_mna(struct pt_regs *regs,
  81. unsigned long addr,
  82. unsigned long type_ctx);
  83. void do_privop(struct pt_regs *regs);
  84. void do_privact(struct pt_regs *regs);
  85. void do_cee(struct pt_regs *regs);
  86. void do_div0_tl1(struct pt_regs *regs);
  87. void do_fpieee_tl1(struct pt_regs *regs);
  88. void do_fpother_tl1(struct pt_regs *regs);
  89. void do_ill_tl1(struct pt_regs *regs);
  90. void do_irq_tl1(struct pt_regs *regs);
  91. void do_lddfmna_tl1(struct pt_regs *regs);
  92. void do_stdfmna_tl1(struct pt_regs *regs);
  93. void do_paw(struct pt_regs *regs);
  94. void do_paw_tl1(struct pt_regs *regs);
  95. void do_vaw(struct pt_regs *regs);
  96. void do_vaw_tl1(struct pt_regs *regs);
  97. void do_tof_tl1(struct pt_regs *regs);
  98. void do_getpsr(struct pt_regs *regs);
  99. void spitfire_insn_access_exception(struct pt_regs *regs,
  100. unsigned long sfsr,
  101. unsigned long sfar);
  102. void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
  103. unsigned long sfsr,
  104. unsigned long sfar);
  105. void spitfire_data_access_exception(struct pt_regs *regs,
  106. unsigned long sfsr,
  107. unsigned long sfar);
  108. void spitfire_data_access_exception_tl1(struct pt_regs *regs,
  109. unsigned long sfsr,
  110. unsigned long sfar);
  111. void spitfire_access_error(struct pt_regs *regs,
  112. unsigned long status_encoded,
  113. unsigned long afar);
  114. void cheetah_fecc_handler(struct pt_regs *regs,
  115. unsigned long afsr,
  116. unsigned long afar);
  117. void cheetah_cee_handler(struct pt_regs *regs,
  118. unsigned long afsr,
  119. unsigned long afar);
  120. void cheetah_deferred_handler(struct pt_regs *regs,
  121. unsigned long afsr,
  122. unsigned long afar);
  123. void cheetah_plus_parity_error(int type, struct pt_regs *regs);
  124. void sun4v_insn_access_exception(struct pt_regs *regs,
  125. unsigned long addr,
  126. unsigned long type_ctx);
  127. void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
  128. unsigned long addr,
  129. unsigned long type_ctx);
  130. void sun4v_data_access_exception(struct pt_regs *regs,
  131. unsigned long addr,
  132. unsigned long type_ctx);
  133. void sun4v_data_access_exception_tl1(struct pt_regs *regs,
  134. unsigned long addr,
  135. unsigned long type_ctx);
  136. void sun4v_resum_error(struct pt_regs *regs,
  137. unsigned long offset);
  138. void sun4v_resum_overflow(struct pt_regs *regs);
  139. void sun4v_nonresum_error(struct pt_regs *regs,
  140. unsigned long offset);
  141. void sun4v_nonresum_overflow(struct pt_regs *regs);
  142. void sun4v_mem_corrupt_detect_precise(struct pt_regs *regs,
  143. unsigned long addr,
  144. unsigned long context);
  145. extern unsigned long sun4v_err_itlb_vaddr;
  146. extern unsigned long sun4v_err_itlb_ctx;
  147. extern unsigned long sun4v_err_itlb_pte;
  148. extern unsigned long sun4v_err_itlb_error;
  149. void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
  150. extern unsigned long sun4v_err_dtlb_vaddr;
  151. extern unsigned long sun4v_err_dtlb_ctx;
  152. extern unsigned long sun4v_err_dtlb_pte;
  153. extern unsigned long sun4v_err_dtlb_error;
  154. void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
  155. void hypervisor_tlbop_error(unsigned long err,
  156. unsigned long op);
  157. void hypervisor_tlbop_error_xcall(unsigned long err,
  158. unsigned long op);
  159. /* WARNING: The error trap handlers in assembly know the precise
  160. * layout of the following structure.
  161. *
  162. * C-level handlers in traps.c use this information to log the
  163. * error and then determine how to recover (if possible).
  164. */
  165. struct cheetah_err_info {
  166. /*0x00*/u64 afsr;
  167. /*0x08*/u64 afar;
  168. /* D-cache state */
  169. /*0x10*/u64 dcache_data[4]; /* The actual data */
  170. /*0x30*/u64 dcache_index; /* D-cache index */
  171. /*0x38*/u64 dcache_tag; /* D-cache tag/valid */
  172. /*0x40*/u64 dcache_utag; /* D-cache microtag */
  173. /*0x48*/u64 dcache_stag; /* D-cache snooptag */
  174. /* I-cache state */
  175. /*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
  176. /*0x90*/u64 icache_index; /* I-cache index */
  177. /*0x98*/u64 icache_tag; /* I-cache phys tag */
  178. /*0xa0*/u64 icache_utag; /* I-cache microtag */
  179. /*0xa8*/u64 icache_stag; /* I-cache snooptag */
  180. /*0xb0*/u64 icache_upper; /* I-cache upper-tag */
  181. /*0xb8*/u64 icache_lower; /* I-cache lower-tag */
  182. /* E-cache state */
  183. /*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
  184. /*0xe0*/u64 ecache_index; /* E-cache index */
  185. /*0xe8*/u64 ecache_tag; /* E-cache tag/state */
  186. /*0xf0*/u64 __pad[32 - 30];
  187. };
  188. #define CHAFSR_INVALID ((u64)-1L)
  189. /* This is allocated at boot time based upon the largest hardware
  190. * cpu ID in the system. We allocate two entries per cpu, one for
  191. * TL==0 logging and one for TL >= 1 logging.
  192. */
  193. extern struct cheetah_err_info *cheetah_error_log;
  194. /* UPA nodes send interrupt packet to UltraSparc with first data reg
  195. * value low 5 (7 on Starfire) bits holding the IRQ identifier being
  196. * delivered. We must translate this into a non-vector IRQ so we can
  197. * set the softint on this cpu.
  198. *
  199. * To make processing these packets efficient and race free we use
  200. * an array of irq buckets below. The interrupt vector handler in
  201. * entry.S feeds incoming packets into per-cpu pil-indexed lists.
  202. *
  203. * If you make changes to ino_bucket, please update hand coded assembler
  204. * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
  205. */
  206. struct ino_bucket {
  207. /*0x00*/unsigned long __irq_chain_pa;
  208. /* Interrupt number assigned to this INO. */
  209. /*0x08*/unsigned int __irq;
  210. /*0x0c*/unsigned int __pad;
  211. };
  212. extern struct ino_bucket *ivector_table;
  213. extern unsigned long ivector_table_pa;
  214. void init_irqwork_curcpu(void);
  215. void sun4v_register_mondo_queues(int this_cpu);
  216. #endif /* CONFIG_SPARC32 */
  217. #endif /* _ENTRY_H */