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review.evervolv.com / android_kernel_oneplus_msm8996 / b280a97d1caf6fe1d38b51ebb31219391f5ad1a0 / . / arch / sparc / kernel / entry.h
blob: e27f8ea8656e3e4b9b1c799a6d170cc9739e2cb2 [file] [log] [blame]
David S. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]1#ifndef _ENTRY_H
2#define _ENTRY_H
3
David S. Millerbfdf9eb2008-03-26 00:46:21 -0700[diff] [blame]4#include <linux/kernel.h>
David S. Miller99cd2202008-03-26 00:19:43 -0700[diff] [blame]5#include <linux/types.h>
David S. Millerbfdf9eb2008-03-26 00:46:21 -0700[diff] [blame]6#include <linux/init.h>
David S. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]7
Sam Ravnborg81265fd2008-12-08 01:08:24 -0800[diff] [blame]8/* irq */
9extern void handler_irq(int irq, struct pt_regs *regs);
10
Sam Ravnborg8d74e322008-12-08 01:04:59 -0800[diff] [blame]11#ifdef CONFIG_SPARC32
12/* traps */
13extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
14extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
15 unsigned long npc, unsigned long psr);
16
17extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
18 unsigned long npc, unsigned long psr);
19extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
20 unsigned long npc,
21 unsigned long psr);
22extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
23 unsigned long npc, unsigned long psr);
24extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
25 unsigned long npc, unsigned long psr);
26extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
27 unsigned long npc, unsigned long psr);
28extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
29 unsigned long npc, unsigned long psr);
30extern void handle_reg_access(struct pt_regs *regs, unsigned long pc,
31 unsigned long npc, unsigned long psr);
32extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
33 unsigned long npc, unsigned long psr);
34extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
35 unsigned long npc, unsigned long psr);
36
37
38
39/* entry.S */
40extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
41 void *fpqueue, unsigned long *fpqdepth);
42extern void fpload(unsigned long *fpregs, unsigned long *fsr);
43
44#else /* CONFIG_SPARC32 */
David S. Milleref7c4d42011-07-29 09:42:07 -0700[diff] [blame]45struct popc_3insn_patch_entry {
46 unsigned int addr;
47 unsigned int insns[3];
48};
49extern struct popc_3insn_patch_entry __popc_3insn_patch,
50 __popc_3insn_patch_end;
51
David S. Miller56d205c2011-08-02 20:23:34 -0700[diff] [blame]52struct popc_6insn_patch_entry {
53 unsigned int addr;
54 unsigned int insns[6];
55};
56extern struct popc_6insn_patch_entry __popc_6insn_patch,
57 __popc_6insn_patch_end;
58
David S. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]59extern void __init per_cpu_patch(void);
60extern void __init sun4v_patch(void);
61extern void __init boot_cpu_id_too_large(int cpu);
62extern unsigned int dcache_parity_tl1_occurred;
63extern unsigned int icache_parity_tl1_occurred;
64
David S. Miller207ddd02008-03-26 01:43:29 -0700[diff] [blame]65extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
David S. Millercf3d7c12008-03-26 01:11:55 -0700[diff] [blame]66extern void timer_interrupt(int irq, struct pt_regs *regs);
67
David S. Miller062ea6d2008-03-26 01:52:18 -0700[diff] [blame]68extern void do_notify_resume(struct pt_regs *regs,
69 unsigned long orig_i0,
David S. Miller062ea6d2008-03-26 01:52:18 -0700[diff] [blame]70 unsigned long thread_info_flags);
71
David S. Millerfe06cca2008-08-24 20:10:23 -0700[diff] [blame]72extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
73extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
David S. Millerbfdf9eb2008-03-26 00:46:21 -0700[diff] [blame]74
David S. Miller99cd2202008-03-26 00:19:43 -0700[diff] [blame]75extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
76
77extern void do_fpe_common(struct pt_regs *regs);
78extern void do_fpieee(struct pt_regs *regs);
79extern void do_fpother(struct pt_regs *regs);
80extern void do_tof(struct pt_regs *regs);
81extern void do_div0(struct pt_regs *regs);
82extern void do_illegal_instruction(struct pt_regs *regs);
83extern void mem_address_unaligned(struct pt_regs *regs,
84 unsigned long sfar,
85 unsigned long sfsr);
86extern void sun4v_do_mna(struct pt_regs *regs,
87 unsigned long addr,
88 unsigned long type_ctx);
89extern void do_privop(struct pt_regs *regs);
90extern void do_privact(struct pt_regs *regs);
91extern void do_cee(struct pt_regs *regs);
92extern void do_cee_tl1(struct pt_regs *regs);
93extern void do_dae_tl1(struct pt_regs *regs);
94extern void do_iae_tl1(struct pt_regs *regs);
95extern void do_div0_tl1(struct pt_regs *regs);
96extern void do_fpdis_tl1(struct pt_regs *regs);
97extern void do_fpieee_tl1(struct pt_regs *regs);
98extern void do_fpother_tl1(struct pt_regs *regs);
99extern void do_ill_tl1(struct pt_regs *regs);
100extern void do_irq_tl1(struct pt_regs *regs);
101extern void do_lddfmna_tl1(struct pt_regs *regs);
102extern void do_stdfmna_tl1(struct pt_regs *regs);
103extern void do_paw(struct pt_regs *regs);
104extern void do_paw_tl1(struct pt_regs *regs);
105extern void do_vaw(struct pt_regs *regs);
106extern void do_vaw_tl1(struct pt_regs *regs);
107extern void do_tof_tl1(struct pt_regs *regs);
108extern void do_getpsr(struct pt_regs *regs);
109
110extern void spitfire_insn_access_exception(struct pt_regs *regs,
111 unsigned long sfsr,
112 unsigned long sfar);
113extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
114 unsigned long sfsr,
115 unsigned long sfar);
116extern void spitfire_data_access_exception(struct pt_regs *regs,
117 unsigned long sfsr,
118 unsigned long sfar);
119extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
120 unsigned long sfsr,
121 unsigned long sfar);
122extern void spitfire_access_error(struct pt_regs *regs,
123 unsigned long status_encoded,
124 unsigned long afar);
125
126extern void cheetah_fecc_handler(struct pt_regs *regs,
127 unsigned long afsr,
128 unsigned long afar);
129extern void cheetah_cee_handler(struct pt_regs *regs,
130 unsigned long afsr,
131 unsigned long afar);
132extern void cheetah_deferred_handler(struct pt_regs *regs,
133 unsigned long afsr,
134 unsigned long afar);
135extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
136
137extern void sun4v_insn_access_exception(struct pt_regs *regs,
138 unsigned long addr,
139 unsigned long type_ctx);
140extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
141 unsigned long addr,
142 unsigned long type_ctx);
143extern void sun4v_data_access_exception(struct pt_regs *regs,
144 unsigned long addr,
145 unsigned long type_ctx);
146extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
147 unsigned long addr,
148 unsigned long type_ctx);
149extern void sun4v_resum_error(struct pt_regs *regs,
150 unsigned long offset);
151extern void sun4v_resum_overflow(struct pt_regs *regs);
152extern void sun4v_nonresum_error(struct pt_regs *regs,
153 unsigned long offset);
154extern void sun4v_nonresum_overflow(struct pt_regs *regs);
155
156extern unsigned long sun4v_err_itlb_vaddr;
157extern unsigned long sun4v_err_itlb_ctx;
158extern unsigned long sun4v_err_itlb_pte;
159extern unsigned long sun4v_err_itlb_error;
160
161extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
162
163extern unsigned long sun4v_err_dtlb_vaddr;
164extern unsigned long sun4v_err_dtlb_ctx;
165extern unsigned long sun4v_err_dtlb_pte;
166extern unsigned long sun4v_err_dtlb_error;
167
168extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
169extern void hypervisor_tlbop_error(unsigned long err,
170 unsigned long op);
171extern void hypervisor_tlbop_error_xcall(unsigned long err,
172 unsigned long op);
173
174/* WARNING: The error trap handlers in assembly know the precise
175 * layout of the following structure.
176 *
177 * C-level handlers in traps.c use this information to log the
178 * error and then determine how to recover (if possible).
179 */
180struct cheetah_err_info {
181/*0x00*/u64 afsr;
182/*0x08*/u64 afar;
183
184 /* D-cache state */
185/*0x10*/u64 dcache_data[4]; /* The actual data */
186/*0x30*/u64 dcache_index; /* D-cache index */
187/*0x38*/u64 dcache_tag; /* D-cache tag/valid */
188/*0x40*/u64 dcache_utag; /* D-cache microtag */
189/*0x48*/u64 dcache_stag; /* D-cache snooptag */
190
191 /* I-cache state */
192/*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
193/*0x90*/u64 icache_index; /* I-cache index */
194/*0x98*/u64 icache_tag; /* I-cache phys tag */
195/*0xa0*/u64 icache_utag; /* I-cache microtag */
196/*0xa8*/u64 icache_stag; /* I-cache snooptag */
197/*0xb0*/u64 icache_upper; /* I-cache upper-tag */
198/*0xb8*/u64 icache_lower; /* I-cache lower-tag */
199
200 /* E-cache state */
201/*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
202/*0xe0*/u64 ecache_index; /* E-cache index */
203/*0xe8*/u64 ecache_tag; /* E-cache tag/state */
204
205/*0xf0*/u64 __pad[32 - 30];
206};
207#define CHAFSR_INVALID ((u64)-1L)
208
209/* This is allocated at boot time based upon the largest hardware
210 * cpu ID in the system. We allocate two entries per cpu, one for
211 * TL==0 logging and one for TL >= 1 logging.
212 */
213extern struct cheetah_err_info *cheetah_error_log;
214
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]215/* UPA nodes send interrupt packet to UltraSparc with first data reg
216 * value low 5 (7 on Starfire) bits holding the IRQ identifier being
217 * delivered. We must translate this into a non-vector IRQ so we can
218 * set the softint on this cpu.
219 *
220 * To make processing these packets efficient and race free we use
221 * an array of irq buckets below. The interrupt vector handler in
222 * entry.S feeds incoming packets into per-cpu pil-indexed lists.
223 *
224 * If you make changes to ino_bucket, please update hand coded assembler
225 * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
226 */
227struct ino_bucket {
228/*0x00*/unsigned long __irq_chain_pa;
229
Sam Ravnborgfe414932011-01-22 11:32:19 +0000[diff] [blame]230 /* Interrupt number assigned to this INO. */
231/*0x08*/unsigned int __irq;
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]232/*0x0c*/unsigned int __pad;
233};
234
235extern struct ino_bucket *ivector_table;
236extern unsigned long ivector_table_pa;
237
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]238extern void init_irqwork_curcpu(void);
239extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
240
Sam Ravnborg8d74e322008-12-08 01:04:59 -0800[diff] [blame]241#endif /* CONFIG_SPARC32 */
David S. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]242#endif /* _ENTRY_H */