Gitiles
Code Review Sign In
review.evervolv.com / android_kernel_oneplus_msm8996 / ef7c4d4675d2a9206f913f26ca1a5cd41bff9d41 / . / arch / sparc / kernel / entry.h
blob: 16d1545d84fc02869226bda42731eae1f1445a76 [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. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]52extern void __init per_cpu_patch(void);
53extern void __init sun4v_patch(void);
54extern void __init boot_cpu_id_too_large(int cpu);
55extern unsigned int dcache_parity_tl1_occurred;
56extern unsigned int icache_parity_tl1_occurred;
57
David S. Miller207ddd02008-03-26 01:43:29 -0700[diff] [blame]58extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
David S. Millercf3d7c12008-03-26 01:11:55 -0700[diff] [blame]59extern void timer_interrupt(int irq, struct pt_regs *regs);
60
David S. Miller062ea6d2008-03-26 01:52:18 -0700[diff] [blame]61extern void do_notify_resume(struct pt_regs *regs,
62 unsigned long orig_i0,
David S. Miller062ea6d2008-03-26 01:52:18 -0700[diff] [blame]63 unsigned long thread_info_flags);
64
David S. Millerfe06cca2008-08-24 20:10:23 -0700[diff] [blame]65extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
66extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
David S. Millerbfdf9eb2008-03-26 00:46:21 -0700[diff] [blame]67
David S. Miller99cd2202008-03-26 00:19:43 -0700[diff] [blame]68extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
69
70extern void do_fpe_common(struct pt_regs *regs);
71extern void do_fpieee(struct pt_regs *regs);
72extern void do_fpother(struct pt_regs *regs);
73extern void do_tof(struct pt_regs *regs);
74extern void do_div0(struct pt_regs *regs);
75extern void do_illegal_instruction(struct pt_regs *regs);
76extern void mem_address_unaligned(struct pt_regs *regs,
77 unsigned long sfar,
78 unsigned long sfsr);
79extern void sun4v_do_mna(struct pt_regs *regs,
80 unsigned long addr,
81 unsigned long type_ctx);
82extern void do_privop(struct pt_regs *regs);
83extern void do_privact(struct pt_regs *regs);
84extern void do_cee(struct pt_regs *regs);
85extern void do_cee_tl1(struct pt_regs *regs);
86extern void do_dae_tl1(struct pt_regs *regs);
87extern void do_iae_tl1(struct pt_regs *regs);
88extern void do_div0_tl1(struct pt_regs *regs);
89extern void do_fpdis_tl1(struct pt_regs *regs);
90extern void do_fpieee_tl1(struct pt_regs *regs);
91extern void do_fpother_tl1(struct pt_regs *regs);
92extern void do_ill_tl1(struct pt_regs *regs);
93extern void do_irq_tl1(struct pt_regs *regs);
94extern void do_lddfmna_tl1(struct pt_regs *regs);
95extern void do_stdfmna_tl1(struct pt_regs *regs);
96extern void do_paw(struct pt_regs *regs);
97extern void do_paw_tl1(struct pt_regs *regs);
98extern void do_vaw(struct pt_regs *regs);
99extern void do_vaw_tl1(struct pt_regs *regs);
100extern void do_tof_tl1(struct pt_regs *regs);
101extern void do_getpsr(struct pt_regs *regs);
102
103extern void spitfire_insn_access_exception(struct pt_regs *regs,
104 unsigned long sfsr,
105 unsigned long sfar);
106extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
107 unsigned long sfsr,
108 unsigned long sfar);
109extern void spitfire_data_access_exception(struct pt_regs *regs,
110 unsigned long sfsr,
111 unsigned long sfar);
112extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
113 unsigned long sfsr,
114 unsigned long sfar);
115extern void spitfire_access_error(struct pt_regs *regs,
116 unsigned long status_encoded,
117 unsigned long afar);
118
119extern void cheetah_fecc_handler(struct pt_regs *regs,
120 unsigned long afsr,
121 unsigned long afar);
122extern void cheetah_cee_handler(struct pt_regs *regs,
123 unsigned long afsr,
124 unsigned long afar);
125extern void cheetah_deferred_handler(struct pt_regs *regs,
126 unsigned long afsr,
127 unsigned long afar);
128extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
129
130extern void sun4v_insn_access_exception(struct pt_regs *regs,
131 unsigned long addr,
132 unsigned long type_ctx);
133extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
134 unsigned long addr,
135 unsigned long type_ctx);
136extern void sun4v_data_access_exception(struct pt_regs *regs,
137 unsigned long addr,
138 unsigned long type_ctx);
139extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
140 unsigned long addr,
141 unsigned long type_ctx);
142extern void sun4v_resum_error(struct pt_regs *regs,
143 unsigned long offset);
144extern void sun4v_resum_overflow(struct pt_regs *regs);
145extern void sun4v_nonresum_error(struct pt_regs *regs,
146 unsigned long offset);
147extern void sun4v_nonresum_overflow(struct pt_regs *regs);
148
149extern unsigned long sun4v_err_itlb_vaddr;
150extern unsigned long sun4v_err_itlb_ctx;
151extern unsigned long sun4v_err_itlb_pte;
152extern unsigned long sun4v_err_itlb_error;
153
154extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
155
156extern unsigned long sun4v_err_dtlb_vaddr;
157extern unsigned long sun4v_err_dtlb_ctx;
158extern unsigned long sun4v_err_dtlb_pte;
159extern unsigned long sun4v_err_dtlb_error;
160
161extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
162extern void hypervisor_tlbop_error(unsigned long err,
163 unsigned long op);
164extern void hypervisor_tlbop_error_xcall(unsigned long err,
165 unsigned long op);
166
167/* WARNING: The error trap handlers in assembly know the precise
168 * layout of the following structure.
169 *
170 * C-level handlers in traps.c use this information to log the
171 * error and then determine how to recover (if possible).
172 */
173struct cheetah_err_info {
174/*0x00*/u64 afsr;
175/*0x08*/u64 afar;
176
177 /* D-cache state */
178/*0x10*/u64 dcache_data[4]; /* The actual data */
179/*0x30*/u64 dcache_index; /* D-cache index */
180/*0x38*/u64 dcache_tag; /* D-cache tag/valid */
181/*0x40*/u64 dcache_utag; /* D-cache microtag */
182/*0x48*/u64 dcache_stag; /* D-cache snooptag */
183
184 /* I-cache state */
185/*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
186/*0x90*/u64 icache_index; /* I-cache index */
187/*0x98*/u64 icache_tag; /* I-cache phys tag */
188/*0xa0*/u64 icache_utag; /* I-cache microtag */
189/*0xa8*/u64 icache_stag; /* I-cache snooptag */
190/*0xb0*/u64 icache_upper; /* I-cache upper-tag */
191/*0xb8*/u64 icache_lower; /* I-cache lower-tag */
192
193 /* E-cache state */
194/*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
195/*0xe0*/u64 ecache_index; /* E-cache index */
196/*0xe8*/u64 ecache_tag; /* E-cache tag/state */
197
198/*0xf0*/u64 __pad[32 - 30];
199};
200#define CHAFSR_INVALID ((u64)-1L)
201
202/* This is allocated at boot time based upon the largest hardware
203 * cpu ID in the system. We allocate two entries per cpu, one for
204 * TL==0 logging and one for TL >= 1 logging.
205 */
206extern struct cheetah_err_info *cheetah_error_log;
207
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]208/* UPA nodes send interrupt packet to UltraSparc with first data reg
209 * value low 5 (7 on Starfire) bits holding the IRQ identifier being
210 * delivered. We must translate this into a non-vector IRQ so we can
211 * set the softint on this cpu.
212 *
213 * To make processing these packets efficient and race free we use
214 * an array of irq buckets below. The interrupt vector handler in
215 * entry.S feeds incoming packets into per-cpu pil-indexed lists.
216 *
217 * If you make changes to ino_bucket, please update hand coded assembler
218 * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
219 */
220struct ino_bucket {
221/*0x00*/unsigned long __irq_chain_pa;
222
Sam Ravnborgfe414932011-01-22 11:32:19 +0000[diff] [blame]223 /* Interrupt number assigned to this INO. */
224/*0x08*/unsigned int __irq;
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]225/*0x0c*/unsigned int __pad;
226};
227
228extern struct ino_bucket *ivector_table;
229extern unsigned long ivector_table_pa;
230
David S. Millerd91aa122008-03-26 00:37:51 -0700[diff] [blame]231extern void init_irqwork_curcpu(void);
232extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
233
Sam Ravnborg8d74e322008-12-08 01:04:59 -0800[diff] [blame]234#endif /* CONFIG_SPARC32 */
David S. Miller3d5ae6b2008-03-25 21:51:40 -0700[diff] [blame]235#endif /* _ENTRY_H */