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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24 /*
25 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
26 */
27
28 #ifndef _SYS_APIC_COMMON_H
29 #define _SYS_APIC_COMMON_H
30
31 #include <sys/psm_types.h>
32 #include <sys/avintr.h>
33 #include <sys/privregs.h>
34 #include <sys/pci.h>
35 #include <sys/cyclic.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /*
42 * Functions & Variables common to pcplusmp & apix
43 */
44
45 #include <sys/psm_common.h>
46
47 /* Methods for multiple IOAPIC */
48 enum apic_ioapic_method_type {
49 APIC_MUL_IOAPIC_NONE, /* use to disable pcplusmp fallback */
50 APIC_MUL_IOAPIC_MASK, /* Set RT Entry Mask bit before EOI */
51 APIC_MUL_IOAPIC_DEOI, /* Directed EOI */
52 APIC_MUL_IOAPIC_IOXAPIC, /* IOxAPIC */
53 APIC_MUL_IOAPIC_IIR, /* IOMMU interrup remapping */
54 APIC_MUL_IOAPIC_PCPLUSMP /* Fall back to old pcplusmp */
55 };
56
57 #define APIX_IS_DIRECTED_EOI(type) \
58 ((type) == APIC_MUL_IOAPIC_DEOI || (type) == APIC_MUL_IOAPIC_IIR)
59 #define APIX_IS_MASK_RDT(type) \
60 ((type) == APIC_MUL_IOAPIC_NONE || (type) == APIC_MUL_IOAPIC_MASK)
61
62 extern int apix_enable;
63 extern int apix_loaded(void);
64 extern enum apic_ioapic_method_type apix_mul_ioapic_method;
65
66 extern int apic_oneshot;
67 /* to allow disabling one-shot capability */
68 extern int apic_oneshot_enable;
69
70 /* Now the ones for Dynamic Interrupt distribution */
71 extern int apic_enable_dynamic_migration;
72
73 extern int apic_have_32bit_cr8;
74
75 extern struct psm_ops *psmops;
76
77 /*
78 * These variables are frequently accessed in apic_intr_enter(),
79 * apic_intr_exit and apic_setspl, so group them together
80 */
81 extern volatile uint32_t *apicadr; /* virtual addr of local APIC */
82 extern uchar_t apic_io_vectbase[MAX_IO_APIC];
83 extern uchar_t apic_io_vectend[MAX_IO_APIC];
84 extern uchar_t apic_io_ver[MAX_IO_APIC];
85 extern int apic_io_max;
86 extern int apic_nvidia_io_max;
87 extern int apic_setspl_delay; /* apic_setspl - delay enable */
88 extern int apic_clkvect;
89
90 /* vector at which error interrupts come in */
91 extern int apic_errvect;
92 extern int apic_enable_error_intr;
93 extern int apic_error_display_delay;
94
95 /* vector at which performance counter overflow interrupts come in */
96 extern int apic_cpcovf_vect;
97 extern int apic_enable_cpcovf_intr;
98
99 /* vector at which CMCI interrupts come in */
100 extern int apic_cmci_vect;
101 extern int cmi_enable_cmci;
102 extern void cmi_cmci_trap(void);
103
104 extern kmutex_t cmci_cpu_setup_lock; /* protects cmci_cpu_setup_registered */
105 extern int cmci_cpu_setup_registered;
106
107 extern int apic_forceload;
108
109 extern int apic_coarse_hrtime; /* 0 - use accurate slow gethrtime() */
110 /* 1 - use gettime() for performance */
111 extern int apic_flat_model; /* 0 - clustered. 1 - flat */
112
113 extern int apic_panic_on_nmi;
114 extern int apic_panic_on_apic_error;
115
116 extern int apic_verbose;
117
118 #ifdef DEBUG
119 extern int apic_debug;
120 extern int apic_restrict_vector;
121
122 extern int apic_debug_msgbuf[APIC_DEBUG_MSGBUFSIZE];
123 extern int apic_debug_msgbufindex;
124
125 #endif /* DEBUG */
126
127 extern uint_t apic_nsec_per_intr;
128 extern uint_t apic_nticks;
129 extern uint_t apic_skipped_redistribute;
130
131 extern uint_t last_count_read;
132 extern lock_t apic_mode_switch_lock;
133 extern lock_t apic_gethrtime_lock;
134 extern volatile int apic_hrtime_stamp;
135 extern volatile hrtime_t apic_nsec_since_boot;
136 extern uint_t apic_hertz_count;
137
138 extern uint64_t apic_ticks_per_SFnsecs; /* # of ticks in SF nsecs */
139
140 extern int apic_hrtime_error;
141 extern int apic_remote_hrterr;
142 extern int apic_num_nmis;
143 extern int apic_apic_error;
144 extern int apic_num_apic_errors;
145 extern int apic_num_cksum_errors;
146
147 extern int apic_error;
148
149 /* use to make sure only one cpu handles the nmi */
150 extern lock_t apic_nmi_lock;
151 /* use to make sure only one cpu handles the error interrupt */
152 extern lock_t apic_error_lock;
153
154 /* Patchable global variables. */
155 extern int apic_kmdb_on_nmi; /* 0 - no, 1 - yes enter kmdb */
156 extern uint32_t apic_divide_reg_init; /* 0 - divide by 2 */
157
158 extern apic_intrmap_ops_t *apic_vt_ops;
159
160 #ifdef DEBUG
161 extern int apic_break_on_cpu;
162 extern int apic_stretch_interrupts;
163 extern int apic_stretch_ISR; /* IPL of 3 matches nothing now */
164 #endif
165
166 extern cyclic_id_t apic_cyclic_id;
167
168 extern void apic_nmi_intr(caddr_t arg, struct regs *rp);
169 extern int apic_clkinit();
170 extern hrtime_t apic_gettime();
171 extern hrtime_t apic_gethrtime();
172 extern int apic_cpu_start(processorid_t cpuid, caddr_t ctx);
173 extern int apic_cpu_stop(processorid_t cpuid, caddr_t ctx);
174 extern int apic_cpu_add(psm_cpu_request_t *reqp);
175 extern int apic_cpu_remove(psm_cpu_request_t *reqp);
176 extern int apic_cpu_ops(psm_cpu_request_t *reqp);
177 extern void apic_switch_ipi_callback(boolean_t enter);
178 extern void apic_send_ipi(int cpun, int ipl);
179 extern void apic_set_idlecpu(processorid_t cpun);
180 extern void apic_unset_idlecpu(processorid_t cpun);
181 extern void apic_shutdown(int cmd, int fcn);
182 extern void apic_preshutdown(int cmd, int fcn);
183 extern processorid_t apic_get_next_processorid(processorid_t cpun);
184 extern uint_t apic_calibrate(volatile uint32_t *, uint16_t *);
185
186 extern int apic_error_intr();
187 extern void apic_cpcovf_mask_clear(void);
188 extern int cmci_cpu_setup(cpu_setup_t what, int cpuid, void *arg);
189 extern void apic_intrmap_init(int apic_mode);
190 extern processorid_t apic_find_cpu(int flag);
191 extern processorid_t apic_get_next_bind_cpu(void);
192
193 extern int apic_support_msi;
194 extern int apic_multi_msi_enable;
195 extern int apic_msix_enable;
196
197 extern uint32_t apic_get_localapicid(uint32_t cpuid);
198 extern uchar_t apic_get_ioapicid(uchar_t ioapicindex);
199
200 #ifdef __cplusplus
201 }
202 #endif
203
204 #endif /* _SYS_APIC_COMMON_H */