xref: /titanic_52/usr/src/uts/sun4/sys/trapstat.h (revision e98fafb9956429b59c817d4fbd27720c73879203)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_TRAPSTAT_H
27 #define	_SYS_TRAPSTAT_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #ifndef _ASM
32 #include <sys/processor.h>
33 #endif
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #define	TSTATIOC	(('t' << 16) | ('s' << 8))
40 
41 #define	TSTATIOC_READ		(TSTATIOC | 1)
42 #define	TSTATIOC_GO		(TSTATIOC | 2)
43 #define	TSTATIOC_NOGO		(TSTATIOC | 3)
44 #define	TSTATIOC_STOP		(TSTATIOC | 4)
45 #define	TSTATIOC_CPU		(TSTATIOC | 5)
46 #define	TSTATIOC_NOCPU		(TSTATIOC | 6)
47 #define	TSTATIOC_ENTRY		(TSTATIOC | 7)
48 #define	TSTATIOC_NOENTRY	(TSTATIOC | 8)
49 #define	TSTATIOC_TLBDATA	(TSTATIOC | 9)
50 
51 #define	TSTAT_NENT		512
52 
53 #ifndef _ASM
54 
55 /*
56  * tstat_missdata_t must be of size 2^n, for some value of n.  This allows
57  * tstat_tlbdata_t to be of size 2^(n+2), and tstat_pgszdata_t to be of
58  * size 2^(n+3) -- a constraint which greatly simplifies the TLB return
59  * entry.
60  */
61 typedef struct tstat_missdata {
62 	uint64_t	tmiss_count;
63 	hrtime_t	tmiss_time;
64 } tstat_missdata_t;
65 
66 typedef struct tstat_tlbdata {
67 	tstat_missdata_t	ttlb_tlb;
68 	tstat_missdata_t	ttlb_tsb;
69 } tstat_tlbdata_t;
70 
71 typedef struct tstat_modedata {
72 	tstat_tlbdata_t		tmode_itlb;
73 	tstat_tlbdata_t		tmode_dtlb;
74 } tstat_modedata_t;
75 
76 typedef struct tstat_pgszdata {
77 	tstat_modedata_t	tpgsz_user;
78 	tstat_modedata_t	tpgsz_kernel;
79 } tstat_pgszdata_t;
80 
81 typedef struct tstat_data {
82 	processorid_t	tdata_cpuid;
83 	hrtime_t	tdata_snapts;
84 	hrtime_t	tdata_snaptick;
85 	hrtime_t	tdata_tmptick;
86 	hrtime_t	tdata_peffect;
87 	uint64_t	tdata_traps[TSTAT_NENT];
88 	tstat_pgszdata_t tdata_pgsz[1];
89 } tstat_data_t;
90 
91 #endif
92 
93 #ifdef _KERNEL
94 
95 #define	TSTAT_TLGT0_NENT	256
96 #define	TSTAT_TOTAL_NENT	(TSTAT_NENT + TSTAT_TLGT0_NENT)
97 
98 #define	TSTAT_ENT_NINSTR	8		/* 8 instructions/entry */
99 #define	TSTAT_ENT_SHIFT		5		/* 32 bytes/entry */
100 #define	TSTAT_ENT_ITLBMISS	0x64
101 #define	TSTAT_ENT_DTLBMISS	0x68
102 
103 #define	TSTAT_TLBRET_NINSTR	32
104 
105 #define	TSTAT_PROBE_NPAGES	2048
106 #define	TSTAT_PROBE_SIZE	(TSTAT_PROBE_NPAGES * MMU_PAGESIZE)
107 #define	TSTAT_PROBE_NLAPS	10
108 
109 #ifdef sun4v
110 #define	TSTAT_TRAPCNT_NINSTR	8
111 #define	TSTAT_TLBENT_NINSTR	64
112 #define	TSTAT_ENT_IMMUMISS	0x09
113 #define	TSTAT_ENT_DMMUMISS	0x31
114 #endif
115 
116 #ifndef _ASM
117 
118 typedef struct tstat_tlbretent {
119 	uint32_t	ttlbrent_instr[TSTAT_TLBRET_NINSTR];
120 } tstat_tlbretent_t;
121 
122 #ifdef sun4v
123 typedef struct tstat_tlbent {
124 	uint32_t	ttlbent_instr[TSTAT_TLBENT_NINSTR];
125 } tstat_tlbent_t;
126 #endif /* sun4v */
127 
128 
129 typedef struct tstat_tlbret {
130 	tstat_tlbretent_t	ttlbr_ktlb;
131 	tstat_tlbretent_t	ttlbr_ktsb;
132 	tstat_tlbretent_t	ttlbr_utlb;
133 	tstat_tlbretent_t	ttlbr_utsb;
134 } tstat_tlbret_t;
135 
136 typedef struct tstat_instr {
137 	uint32_t	tinst_traptab[TSTAT_TOTAL_NENT * TSTAT_ENT_NINSTR];
138 	tstat_tlbret_t	tinst_itlbret;
139 	tstat_tlbret_t	tinst_dtlbret;
140 #ifdef sun4v
141 	tstat_tlbent_t	tinst_immumiss;
142 	tstat_tlbent_t	tinst_dmmumiss;
143 	uint32_t	tinst_trapcnt[TSTAT_TRAPCNT_NINSTR];
144 #endif
145 } tstat_instr_t;
146 
147 typedef struct tstat_tsbmiss_patch_entry {
148 	uint32_t *tpe_addr;
149 	uint32_t tpe_instr;
150 } tstat_tsbmiss_patch_entry_t;
151 
152 #endif
153 
154 #ifdef sun4v
155 
156 #if (NCPU > 508)
157 #error "sun4v trapstat supports up to 508 cpus"
158 #endif
159 
160 #define	TSTAT_TLB_STATS		0x1		/* cpu_tstat_flags */
161 #define	TSTAT_INSTR_SIZE	\
162 	((sizeof (tstat_instr_t) + MMU_PAGESIZE - 1) & ~(MMU_PAGESIZE - 1))
163 #define	TSTAT_DATA_SHIFT	13
164 #define	TSTAT_DATA_SIZE		(1 << TSTAT_DATA_SHIFT)	/* 8K per CPU */
165 #define	TSTAT_TBA_MASK		~((1 << 15) - 1)	/* 32K boundary */
166 
167 #define	TSTAT_CPU0_DATA_OFFS(tcpu, mem)	\
168 	((uintptr_t)(tcpu)->tcpu_ibase + TSTAT_INSTR_SIZE + \
169 	    offsetof(tstat_data_t, mem))
170 
171 #else /* sun4v */
172 
173 #define	TSTAT_INSTR_PAGES	((sizeof (tstat_instr_t) >> MMU_PAGESHIFT) + 1)
174 #define	TSTAT_INSTR_SIZE	(TSTAT_INSTR_PAGES * MMU_PAGESIZE)
175 #define	TSTAT_TBA_MASK		~((1 << 16) - 1)	/* 64K per cpu */
176 
177 #define	TSTAT_DATA_OFFS(tcpu, mem)	\
178 	((uintptr_t)(tcpu)->tcpu_dbase + offsetof(tstat_data_t, mem))
179 
180 #endif /* sun4v */
181 
182 #define	TSTAT_INSTR_OFFS(tcpu, mem)	\
183 	((uintptr_t)(tcpu)->tcpu_ibase + offsetof(tstat_instr_t, mem))
184 
185 #define	TSTAT_CPU_SELECTED	0x0001
186 #define	TSTAT_CPU_ALLOCATED	0x0002
187 #define	TSTAT_CPU_ENABLED	0x0004
188 
189 #define	TSTAT_OPT_CPU		0x0001
190 #define	TSTAT_OPT_NOGO		0x0002
191 #define	TSTAT_OPT_TLBDATA	0x0004
192 #define	TSTAT_OPT_ENTRY		0x0008
193 
194 #define	TSTAT_TSBMISS_INSTR	0x8e01e000	/* add %g7, 0, %g7 */
195 
196 #ifndef _ASM
197 
198 typedef struct tstat_percpu {
199 	uint32_t	tcpu_flags;
200 	caddr_t		tcpu_tba;
201 	caddr_t		tcpu_vabase;
202 	caddr_t		tcpu_ibase;
203 	caddr_t		tcpu_dbase;
204 	pfn_t		*tcpu_pfn;
205 	tstat_instr_t	*tcpu_instr;
206 	tstat_data_t	*tcpu_data;
207 } tstat_percpu_t;
208 
209 #endif
210 
211 #endif
212 #ifdef	__cplusplus
213 }
214 #endif
215 
216 #endif	/* _SYS_TRAPSTAT_H */
217