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entry.h
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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 */
9 extern void handler_irq(int irq, struct pt_regs *regs);
10 
11 #ifdef CONFIG_SPARC32
12 /* traps */
13 extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
14 extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
15  unsigned long npc, unsigned long psr);
16 
17 extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
18  unsigned long npc, unsigned long psr);
19 extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
20  unsigned long npc,
21  unsigned long psr);
22 extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
23  unsigned long npc, unsigned long psr);
24 extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
25  unsigned long npc, unsigned long psr);
26 extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
27  unsigned long npc, unsigned long psr);
28 extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
29  unsigned long npc, unsigned long psr);
30 extern void handle_reg_access(struct pt_regs *regs, unsigned long pc,
31  unsigned long npc, unsigned long psr);
32 extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
33  unsigned long npc, unsigned long psr);
34 extern 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 extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
41  void *fpqueue, unsigned long *fpqdepth);
42 extern 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 extern void __init per_cpu_patch(void);
70 extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
71  struct sun4v_1insn_patch_entry *);
72 extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
73  struct sun4v_2insn_patch_entry *);
74 extern void __init sun4v_patch(void);
75 extern void __init boot_cpu_id_too_large(int cpu);
76 extern unsigned int dcache_parity_tl1_occurred;
77 extern unsigned int icache_parity_tl1_occurred;
78 
79 extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
80 extern void timer_interrupt(int irq, struct pt_regs *regs);
81 
82 extern void do_notify_resume(struct pt_regs *regs,
83  unsigned long orig_i0,
84  unsigned long thread_info_flags);
85 
86 extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
87 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
88 
89 extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
90 
91 extern void do_fpe_common(struct pt_regs *regs);
92 extern void do_fpieee(struct pt_regs *regs);
93 extern void do_fpother(struct pt_regs *regs);
94 extern void do_tof(struct pt_regs *regs);
95 extern void do_div0(struct pt_regs *regs);
96 extern void do_illegal_instruction(struct pt_regs *regs);
97 extern void mem_address_unaligned(struct pt_regs *regs,
98  unsigned long sfar,
99  unsigned long sfsr);
100 extern void sun4v_do_mna(struct pt_regs *regs,
101  unsigned long addr,
102  unsigned long type_ctx);
103 extern void do_privop(struct pt_regs *regs);
104 extern void do_privact(struct pt_regs *regs);
105 extern void do_cee(struct pt_regs *regs);
106 extern void do_cee_tl1(struct pt_regs *regs);
107 extern void do_dae_tl1(struct pt_regs *regs);
108 extern void do_iae_tl1(struct pt_regs *regs);
109 extern void do_div0_tl1(struct pt_regs *regs);
110 extern void do_fpdis_tl1(struct pt_regs *regs);
111 extern void do_fpieee_tl1(struct pt_regs *regs);
112 extern void do_fpother_tl1(struct pt_regs *regs);
113 extern void do_ill_tl1(struct pt_regs *regs);
114 extern void do_irq_tl1(struct pt_regs *regs);
115 extern void do_lddfmna_tl1(struct pt_regs *regs);
116 extern void do_stdfmna_tl1(struct pt_regs *regs);
117 extern void do_paw(struct pt_regs *regs);
118 extern void do_paw_tl1(struct pt_regs *regs);
119 extern void do_vaw(struct pt_regs *regs);
120 extern void do_vaw_tl1(struct pt_regs *regs);
121 extern void do_tof_tl1(struct pt_regs *regs);
122 extern void do_getpsr(struct pt_regs *regs);
123 
124 extern void spitfire_insn_access_exception(struct pt_regs *regs,
125  unsigned long sfsr,
126  unsigned long sfar);
127 extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
128  unsigned long sfsr,
129  unsigned long sfar);
130 extern void spitfire_data_access_exception(struct pt_regs *regs,
131  unsigned long sfsr,
132  unsigned long sfar);
133 extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
134  unsigned long sfsr,
135  unsigned long sfar);
136 extern void spitfire_access_error(struct pt_regs *regs,
137  unsigned long status_encoded,
138  unsigned long afar);
139 
140 extern void cheetah_fecc_handler(struct pt_regs *regs,
141  unsigned long afsr,
142  unsigned long afar);
143 extern void cheetah_cee_handler(struct pt_regs *regs,
144  unsigned long afsr,
145  unsigned long afar);
146 extern void cheetah_deferred_handler(struct pt_regs *regs,
147  unsigned long afsr,
148  unsigned long afar);
149 extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
150 
151 extern void sun4v_insn_access_exception(struct pt_regs *regs,
152  unsigned long addr,
153  unsigned long type_ctx);
154 extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
155  unsigned long addr,
156  unsigned long type_ctx);
157 extern void sun4v_data_access_exception(struct pt_regs *regs,
158  unsigned long addr,
159  unsigned long type_ctx);
160 extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
161  unsigned long addr,
162  unsigned long type_ctx);
163 extern void sun4v_resum_error(struct pt_regs *regs,
164  unsigned long offset);
165 extern void sun4v_resum_overflow(struct pt_regs *regs);
166 extern void sun4v_nonresum_error(struct pt_regs *regs,
167  unsigned long offset);
168 extern void sun4v_nonresum_overflow(struct pt_regs *regs);
169 
170 extern unsigned long sun4v_err_itlb_vaddr;
171 extern unsigned long sun4v_err_itlb_ctx;
172 extern unsigned long sun4v_err_itlb_pte;
173 extern unsigned long sun4v_err_itlb_error;
174 
175 extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
176 
177 extern unsigned long sun4v_err_dtlb_vaddr;
178 extern unsigned long sun4v_err_dtlb_ctx;
179 extern unsigned long sun4v_err_dtlb_pte;
180 extern unsigned long sun4v_err_dtlb_error;
181 
182 extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
183 extern void hypervisor_tlbop_error(unsigned long err,
184  unsigned long op);
185 extern void hypervisor_tlbop_error_xcall(unsigned long err,
186  unsigned long op);
187 
188 /* WARNING: The error trap handlers in assembly know the precise
189  * layout of the following structure.
190  *
191  * C-level handlers in traps.c use this information to log the
192  * error and then determine how to recover (if possible).
193  */
194 struct cheetah_err_info {
195 /*0x00*/u64 afsr;
196 /*0x08*/u64 afar;
197 
198  /* D-cache state */
199 /*0x10*/u64 dcache_data[4]; /* The actual data */
200 /*0x30*/u64 dcache_index; /* D-cache index */
201 /*0x38*/u64 dcache_tag; /* D-cache tag/valid */
202 /*0x40*/u64 dcache_utag; /* D-cache microtag */
203 /*0x48*/u64 dcache_stag; /* D-cache snooptag */
204 
205  /* I-cache state */
206 /*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
207 /*0x90*/u64 icache_index; /* I-cache index */
208 /*0x98*/u64 icache_tag; /* I-cache phys tag */
209 /*0xa0*/u64 icache_utag; /* I-cache microtag */
210 /*0xa8*/u64 icache_stag; /* I-cache snooptag */
211 /*0xb0*/u64 icache_upper; /* I-cache upper-tag */
212 /*0xb8*/u64 icache_lower; /* I-cache lower-tag */
213 
214  /* E-cache state */
215 /*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
216 /*0xe0*/u64 ecache_index; /* E-cache index */
217 /*0xe8*/u64 ecache_tag; /* E-cache tag/state */
218 
219 /*0xf0*/u64 __pad[32 - 30];
220 };
221 #define CHAFSR_INVALID ((u64)-1L)
222 
223 /* This is allocated at boot time based upon the largest hardware
224  * cpu ID in the system. We allocate two entries per cpu, one for
225  * TL==0 logging and one for TL >= 1 logging.
226  */
227 extern struct cheetah_err_info *cheetah_error_log;
228 
229 /* UPA nodes send interrupt packet to UltraSparc with first data reg
230  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
231  * delivered. We must translate this into a non-vector IRQ so we can
232  * set the softint on this cpu.
233  *
234  * To make processing these packets efficient and race free we use
235  * an array of irq buckets below. The interrupt vector handler in
236  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
237  *
238  * If you make changes to ino_bucket, please update hand coded assembler
239  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
240  */
241 struct ino_bucket {
242 /*0x00*/unsigned long __irq_chain_pa;
243 
244  /* Interrupt number assigned to this INO. */
245 /*0x08*/unsigned int __irq;
246 /*0x0c*/unsigned int __pad;
247 };
248 
249 extern struct ino_bucket *ivector_table;
250 extern unsigned long ivector_table_pa;
251 
252 extern void init_irqwork_curcpu(void);
253 extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
254 
255 #endif /* CONFIG_SPARC32 */
256 #endif /* _ENTRY_H */
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