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