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TOMOYO Linux Cross Reference
Linux/arch/sparc/kernel/entry.h

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  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 */
 10 void handler_irq(int irq, struct pt_regs *regs);
 11 
 12 #ifdef CONFIG_SPARC32
 13 /* traps */
 14 void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
 15 void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
 16                             unsigned long npc, unsigned long psr);
 17 
 18 void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
 19                          unsigned long npc, unsigned long psr);
 20 void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
 21                             unsigned long npc, unsigned long psr);
 22 void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
 23                  unsigned long npc, unsigned long psr);
 24 void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
 25                  unsigned long npc, unsigned long psr);
 26 void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
 27                          unsigned long npc, unsigned long psr);
 28 void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
 29                        unsigned long npc, unsigned long psr);
 30 void handle_reg_access(struct pt_regs *regs, unsigned long pc,
 31                        unsigned long npc, unsigned long psr);
 32 void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
 33                         unsigned long npc, unsigned long psr);
 34 void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
 35                          unsigned long npc, unsigned long psr);
 36 
 37 
 38 
 39 /* entry.S */
 40 void fpsave(unsigned long *fpregs, unsigned long *fsr,
 41             void *fpqueue, unsigned long *fpqdepth);
 42 void fpload(unsigned long *fpregs, unsigned long *fsr);
 43 
 44 #else /* CONFIG_SPARC32 */
 45 
 46 #include <asm/trap_block.h>
 47 
 48 struct popc_3insn_patch_entry {
 49         unsigned int    addr;
 50         unsigned int    insns[3];
 51 };
 52 extern struct popc_3insn_patch_entry __popc_3insn_patch,
 53         __popc_3insn_patch_end;
 54 
 55 struct popc_6insn_patch_entry {
 56         unsigned int    addr;
 57         unsigned int    insns[6];
 58 };
 59 extern struct popc_6insn_patch_entry __popc_6insn_patch,
 60         __popc_6insn_patch_end;
 61 
 62 struct pause_patch_entry {
 63         unsigned int    addr;
 64         unsigned int    insns[3];
 65 };
 66 extern struct pause_patch_entry __pause_3insn_patch,
 67         __pause_3insn_patch_end;
 68 
 69 void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
 70                              struct sun4v_1insn_patch_entry *);
 71 void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
 72                              struct sun4v_2insn_patch_entry *);
 73 void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *,
 74                              struct sun4v_2insn_patch_entry *);
 75 extern unsigned int dcache_parity_tl1_occurred;
 76 extern unsigned int icache_parity_tl1_occurred;
 77 
 78 asmlinkage void sparc_breakpoint(struct pt_regs *regs);
 79 void timer_interrupt(int irq, struct pt_regs *regs);
 80 
 81 void do_notify_resume(struct pt_regs *regs,
 82                       unsigned long orig_i0,
 83                       unsigned long thread_info_flags);
 84 
 85 asmlinkage int syscall_trace_enter(struct pt_regs *regs);
 86 asmlinkage void syscall_trace_leave(struct pt_regs *regs);
 87 
 88 void bad_trap_tl1(struct pt_regs *regs, long lvl);
 89 
 90 void do_fpieee(struct pt_regs *regs);
 91 void do_fpother(struct pt_regs *regs);
 92 void do_tof(struct pt_regs *regs);
 93 void do_div0(struct pt_regs *regs);
 94 void do_illegal_instruction(struct pt_regs *regs);
 95 void mem_address_unaligned(struct pt_regs *regs,
 96                            unsigned long sfar,
 97                            unsigned long sfsr);
 98 void sun4v_do_mna(struct pt_regs *regs,
 99                   unsigned long addr,
100                   unsigned long type_ctx);
101 void do_privop(struct pt_regs *regs);
102 void do_privact(struct pt_regs *regs);
103 void do_cee(struct pt_regs *regs);
104 void do_div0_tl1(struct pt_regs *regs);
105 void do_fpieee_tl1(struct pt_regs *regs);
106 void do_fpother_tl1(struct pt_regs *regs);
107 void do_ill_tl1(struct pt_regs *regs);
108 void do_irq_tl1(struct pt_regs *regs);
109 void do_lddfmna_tl1(struct pt_regs *regs);
110 void do_stdfmna_tl1(struct pt_regs *regs);
111 void do_paw(struct pt_regs *regs);
112 void do_paw_tl1(struct pt_regs *regs);
113 void do_vaw(struct pt_regs *regs);
114 void do_vaw_tl1(struct pt_regs *regs);
115 void do_tof_tl1(struct pt_regs *regs);
116 void do_getpsr(struct pt_regs *regs);
117 
118 void spitfire_insn_access_exception(struct pt_regs *regs,
119                                     unsigned long sfsr,
120                                     unsigned long sfar);
121 void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
122                                         unsigned long sfsr,
123                                         unsigned long sfar);
124 void spitfire_data_access_exception(struct pt_regs *regs,
125                                     unsigned long sfsr,
126                                     unsigned long sfar);
127 void spitfire_data_access_exception_tl1(struct pt_regs *regs,
128                                         unsigned long sfsr,
129                                         unsigned long sfar);
130 void spitfire_access_error(struct pt_regs *regs,
131                            unsigned long status_encoded,
132                            unsigned long afar);
133 
134 void cheetah_fecc_handler(struct pt_regs *regs,
135                           unsigned long afsr,
136                           unsigned long afar);
137 void cheetah_cee_handler(struct pt_regs *regs,
138                          unsigned long afsr,
139                          unsigned long afar);
140 void cheetah_deferred_handler(struct pt_regs *regs,
141                               unsigned long afsr,
142                               unsigned long afar);
143 void cheetah_plus_parity_error(int type, struct pt_regs *regs);
144 
145 void sun4v_insn_access_exception(struct pt_regs *regs,
146                                  unsigned long addr,
147                                  unsigned long type_ctx);
148 void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
149                                      unsigned long addr,
150                                      unsigned long type_ctx);
151 void sun4v_data_access_exception(struct pt_regs *regs,
152                                  unsigned long addr,
153                                  unsigned long type_ctx);
154 void sun4v_data_access_exception_tl1(struct pt_regs *regs,
155                                      unsigned long addr,
156                                      unsigned long type_ctx);
157 void sun4v_resum_error(struct pt_regs *regs,
158                        unsigned long offset);
159 void sun4v_resum_overflow(struct pt_regs *regs);
160 void sun4v_nonresum_error(struct pt_regs *regs,
161                           unsigned long offset);
162 void sun4v_nonresum_overflow(struct pt_regs *regs);
163 
164 extern unsigned long sun4v_err_itlb_vaddr;
165 extern unsigned long sun4v_err_itlb_ctx;
166 extern unsigned long sun4v_err_itlb_pte;
167 extern unsigned long sun4v_err_itlb_error;
168 
169 void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
170 
171 extern unsigned long sun4v_err_dtlb_vaddr;
172 extern unsigned long sun4v_err_dtlb_ctx;
173 extern unsigned long sun4v_err_dtlb_pte;
174 extern unsigned long sun4v_err_dtlb_error;
175 
176 void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
177 void hypervisor_tlbop_error(unsigned long err,
178                             unsigned long op);
179 void hypervisor_tlbop_error_xcall(unsigned long err,
180                                   unsigned long op);
181 
182 /* WARNING: The error trap handlers in assembly know the precise
183  *          layout of the following structure.
184  *
185  * C-level handlers in traps.c use this information to log the
186  * error and then determine how to recover (if possible).
187  */
188 struct cheetah_err_info {
189 /*0x00*/u64 afsr;
190 /*0x08*/u64 afar;
191 
192         /* D-cache state */
193 /*0x10*/u64 dcache_data[4];     /* The actual data      */
194 /*0x30*/u64 dcache_index;       /* D-cache index        */
195 /*0x38*/u64 dcache_tag;         /* D-cache tag/valid    */
196 /*0x40*/u64 dcache_utag;        /* D-cache microtag     */
197 /*0x48*/u64 dcache_stag;        /* D-cache snooptag     */
198 
199         /* I-cache state */
200 /*0x50*/u64 icache_data[8];     /* The actual insns + predecode */
201 /*0x90*/u64 icache_index;       /* I-cache index        */
202 /*0x98*/u64 icache_tag;         /* I-cache phys tag     */
203 /*0xa0*/u64 icache_utag;        /* I-cache microtag     */
204 /*0xa8*/u64 icache_stag;        /* I-cache snooptag     */
205 /*0xb0*/u64 icache_upper;       /* I-cache upper-tag    */
206 /*0xb8*/u64 icache_lower;       /* I-cache lower-tag    */
207 
208         /* E-cache state */
209 /*0xc0*/u64 ecache_data[4];     /* 32 bytes from staging registers */
210 /*0xe0*/u64 ecache_index;       /* E-cache index        */
211 /*0xe8*/u64 ecache_tag;         /* E-cache tag/state    */
212 
213 /*0xf0*/u64 __pad[32 - 30];
214 };
215 #define CHAFSR_INVALID          ((u64)-1L)
216 
217 /* This is allocated at boot time based upon the largest hardware
218  * cpu ID in the system.  We allocate two entries per cpu, one for
219  * TL==0 logging and one for TL >= 1 logging.
220  */
221 extern struct cheetah_err_info *cheetah_error_log;
222 
223 /* UPA nodes send interrupt packet to UltraSparc with first data reg
224  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
225  * delivered.  We must translate this into a non-vector IRQ so we can
226  * set the softint on this cpu.
227  *
228  * To make processing these packets efficient and race free we use
229  * an array of irq buckets below.  The interrupt vector handler in
230  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
231  *
232  * If you make changes to ino_bucket, please update hand coded assembler
233  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
234  */
235 struct ino_bucket {
236 /*0x00*/unsigned long __irq_chain_pa;
237 
238         /* Interrupt number assigned to this INO.  */
239 /*0x08*/unsigned int __irq;
240 /*0x0c*/unsigned int __pad;
241 };
242 
243 extern struct ino_bucket *ivector_table;
244 extern unsigned long ivector_table_pa;
245 
246 void init_irqwork_curcpu(void);
247 void sun4v_register_mondo_queues(int this_cpu);
248 
249 #endif /* CONFIG_SPARC32 */
250 #endif /* _ENTRY_H */
251 

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