xref: /titanic_50/usr/src/uts/i86pc/sys/apic.h (revision ff3124eff995e6cd8ebd8c6543648e0670920034)
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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_APIC_APIC_H
27 #define	_SYS_APIC_APIC_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/psm_types.h>
32 #include <sys/avintr.h>
33 #include <sys/pci.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #include <sys/psm_common.h>
40 
41 #define	APIC_PCPLUSMP_NAME	"pcplusmp"
42 
43 #define	APIC_IO_ADDR	0xfec00000
44 #define	APIC_LOCAL_ADDR	0xfee00000
45 #define	APIC_IO_MEMLEN	0xf
46 #define	APIC_LOCAL_MEMLEN	0xfffff
47 
48 /* Local Unit ID register */
49 #define	APIC_LID_REG		0x8
50 
51 /* I/o Unit Version Register */
52 #define	APIC_VERS_REG		0xc
53 
54 /* Task Priority register */
55 #define	APIC_TASK_REG		0x20
56 
57 /* EOI register */
58 #define	APIC_EOI_REG		0x2c
59 
60 /* Remote Read register		*/
61 #define	APIC_REMOTE_READ	0x30
62 
63 /* Logical Destination register */
64 #define	APIC_DEST_REG		0x34
65 
66 /* Destination Format rgister */
67 #define	APIC_FORMAT_REG		0x38
68 
69 /* Spurious Interrupt Vector register */
70 #define	APIC_SPUR_INT_REG	0x3c
71 
72 /* Error Status Register */
73 #define	APIC_ERROR_STATUS	0xa0
74 
75 /* Interrupt Command registers */
76 #define	APIC_INT_CMD1		0xc0
77 #define	APIC_INT_CMD2		0xc4
78 
79 /* Timer Vector Table register */
80 #define	APIC_LOCAL_TIMER	0xc8
81 
82 /* Local Interrupt Vector registers */
83 #define	APIC_THERM_VECT		0xcc
84 #define	APIC_PCINT_VECT		0xd0
85 #define	APIC_INT_VECT0		0xd4
86 #define	APIC_INT_VECT1		0xd8
87 #define	APIC_ERR_VECT		0xdc
88 
89 /* IPL for performance counter interrupts */
90 #define	APIC_PCINT_IPL		0xe
91 #define	APIC_LVT_MASK		0x10000		/* Mask bit (16) in LVT */
92 
93 /* Initial Count register */
94 #define	APIC_INIT_COUNT		0xe0
95 
96 /* Current Count Register */
97 #define	APIC_CURR_COUNT		0xe4
98 #define	APIC_CURR_ADD		0x39	/* used for remote read command */
99 #define	CURR_COUNT_OFFSET	(sizeof (int32_t) * APIC_CURR_COUNT)
100 
101 /* Divider Configuration Register */
102 #define	APIC_DIVIDE_REG		0xf8
103 
104 /* IRR register	*/
105 #define	APIC_IRR_REG		0x80
106 
107 /* ISR register	*/
108 #define	APIC_ISR_REG		0x40
109 
110 #define	APIC_IO_REG		0x0
111 #define	APIC_IO_DATA		0x4
112 
113 /* Bit offset of APIC ID in LID_REG, INT_CMD and in DEST_REG */
114 #define	APIC_ID_BIT_OFFSET	24
115 #define	APIC_ICR_ID_BIT_OFFSET	24
116 #define	APIC_LDR_ID_BIT_OFFSET	24
117 
118 /*
119  * Choose between flat and clustered models by writing the following to the
120  * FORMAT_REG. 82489 DX documentation seemed to suggest that writing 0 will
121  * disable logical destination mode.
122  * Does not seem to be in the docs for local APICs on the processors.
123  */
124 #define	APIC_FLAT_MODEL		0xFFFFFFFFUL
125 #define	APIC_CLUSTER_MODEL	0x0FFFFFFF
126 
127 /*
128  * The commands which follow are window selectors written to APIC_IO_REG
129  * before data can be read/written from/to APIC_IO_DATA
130  */
131 
132 #define	APIC_ID_CMD		0x0
133 #define	APIC_VERS_CMD		0x1
134 #define	APIC_RDT_CMD		0x10
135 #define	APIC_RDT_CMD2		0x11
136 
137 #define	APIC_INTEGRATED_VERS	0x10	/* 0x10 & above indicates integrated */
138 #define	IOAPIC_VER_82489DX	0x01	/* Version ID: 82489DX External APIC */
139 
140 #define	APIC_INT_SPURIOUS	-1
141 
142 #define	APIC_IMCR_P1	0x22		/* int mode conf register port 1 */
143 #define	APIC_IMCR_P2	0x23		/* int mode conf register port 2 */
144 #define	APIC_IMCR_SELECT 0x70		/* select imcr by writing into P1 */
145 #define	APIC_IMCR_PIC	0x0		/* selects PIC mode (8259-> BSP) */
146 #define	APIC_IMCR_APIC	0x1		/* selects APIC mode (8259->APIC) */
147 
148 #define	APIC_CT_VECT	0x4ac		/* conf table vector		*/
149 #define	APIC_CT_SIZE	1024		/* conf table size		*/
150 
151 #define	APIC_ID		'MPAT'		/* conf table signature 	*/
152 
153 #define	VENID_AMD		0x1022
154 #define	DEVID_8131_IOAPIC	0x7451
155 #define	DEVID_8132_IOAPIC	0x7459
156 
157 #define	IOAPICS_NODE_NAME	"ioapics"
158 #define	IOAPICS_CHILD_NAME	"ioapic"
159 #define	IOAPICS_DEV_TYPE	"ioapic"
160 #define	IOAPICS_PROP_VENID	"vendor-id"
161 #define	IOAPICS_PROP_DEVID	"device-id"
162 
163 #define	IS_CLASS_IOAPIC(b, s, p) \
164 	((b) == PCI_CLASS_PERIPH && (s) == PCI_PERIPH_PIC &&	\
165 	((p) == PCI_PERIPH_PIC_IF_IO_APIC ||			\
166 	(p) == PCI_PERIPH_PIC_IF_IOX_APIC))
167 
168 
169 /*
170  * MP floating pointer structure defined in Intel MP Spec 1.1
171  */
172 struct apic_mpfps_hdr {
173 	uint32_t	mpfps_sig;	/* _MP_ (0x5F4D505F)		*/
174 	uint32_t	mpfps_mpct_paddr; /* paddr of MP configuration tbl */
175 	uchar_t	mpfps_length;		/* in paragraph (16-bytes units) */
176 	uchar_t	mpfps_spec_rev;		/* version number of MP spec	 */
177 	uchar_t	mpfps_checksum;		/* checksum of complete structure */
178 	uchar_t	mpfps_featinfo1;	/* mp feature info bytes 1	 */
179 	uchar_t	mpfps_featinfo2;	/* mp feature info bytes 2	 */
180 	uchar_t	mpfps_featinfo3;	/* mp feature info bytes 3	 */
181 	uchar_t	mpfps_featinfo4;	/* mp feature info bytes 4	 */
182 	uchar_t	mpfps_featinfo5;	/* mp feature info bytes 5	 */
183 };
184 
185 #define	MPFPS_FEATINFO2_IMCRP		0x80	/* IMCRP presence bit	*/
186 
187 #define	APIC_MPS_OEM_ID_LEN		8
188 #define	APIC_MPS_PROD_ID_LEN		12
189 
190 struct apic_mp_cnf_hdr {
191 	uint_t	mpcnf_sig;
192 
193 	uint_t	mpcnf_tbl_length:	16,
194 		mpcnf_spec:		8,
195 		mpcnf_cksum:		8;
196 
197 	char	mpcnf_oem_str[APIC_MPS_OEM_ID_LEN];
198 
199 	char	mpcnf_prod_str[APIC_MPS_PROD_ID_LEN];
200 
201 	uint_t	mpcnf_oem_ptr;
202 
203 	uint_t	mpcnf_oem_tbl_size:	16,
204 		mpcnf_entry_cnt:	16;
205 
206 	uint_t	mpcnf_local_apic;
207 
208 	uint_t	mpcnf_resv;
209 };
210 
211 struct apic_procent {
212 	uint_t	proc_entry:		8,
213 		proc_apicid:		8,
214 		proc_version:		8,
215 		proc_cpuflags:		8;
216 
217 	uint_t	proc_stepping:		4,
218 		proc_model:		4,
219 		proc_family:		4,
220 		proc_type:		2,	/* undocumented feature */
221 		proc_resv1:		18;
222 
223 	uint_t	proc_feature;
224 
225 	uint_t	proc_resv2;
226 
227 	uint_t	proc_resv3;
228 };
229 
230 /*
231  * proc_cpuflags definitions
232  */
233 #define	CPUFLAGS_EN	1	/* if not set, this processor is unusable */
234 #define	CPUFLAGS_BP	2	/* set if this is the bootstrap processor */
235 
236 
237 struct apic_bus {
238 	uchar_t	bus_entry;
239 	uchar_t	bus_id;
240 	ushort_t	bus_str1;
241 	uint_t	bus_str2;
242 };
243 
244 struct apic_io_entry {
245 	uint_t	io_entry:		8,
246 		io_apicid:		8,
247 		io_version:		8,
248 		io_flags:		8;
249 
250 	uint_t	io_apic_addr;
251 };
252 
253 #define	IOAPIC_FLAGS_EN		0x01	/* this I/O apic is enable or not */
254 
255 #define	MAX_IO_APIC		32	/* maximum # of IOAPICs supported */
256 
257 struct apic_io_intr {
258 	uint_t	intr_entry:		8,
259 		intr_type:		8,
260 		intr_po:		2,
261 		intr_el:		2,
262 		intr_resv:		12;
263 
264 	uint_t	intr_busid:		8,
265 		intr_irq:		8,
266 		intr_destid:		8,
267 		intr_destintin:		8;
268 };
269 
270 /*
271  * intr_type definitions
272  */
273 #define	IO_INTR_INT	0x00
274 #define	IO_INTR_NMI	0x01
275 #define	IO_INTR_SMI	0x02
276 #define	IO_INTR_EXTINT	0x03
277 
278 /*
279  * destination APIC ID
280  */
281 #define	INTR_ALL_APIC		0xff
282 
283 
284 /* local vector table							*/
285 #define	AV_MASK		0x10000
286 
287 /* interrupt command register 32-63					*/
288 #define	AV_TOALL	0x7fffffff
289 #define	AV_HIGH_ORDER	0x40000000
290 #define	AV_IM_OFF	0x40000000
291 
292 /* interrupt command register 0-31					*/
293 #define	AV_DELIV_MODE	0x700
294 
295 #define	AV_FIXED	0x000
296 #define	AV_LOPRI	0x100
297 #define	AV_SMI		0x200
298 #define	AV_REMOTE	0x300
299 #define	AV_NMI		0x400
300 #define	AV_RESET	0x500
301 #define	AV_STARTUP	0x600
302 #define	AV_EXTINT	0x700
303 
304 #define	AV_PDEST	0x000
305 #define	AV_LDEST	0x800
306 
307 /* IO & Local APIC Bit Definitions */
308 #define	RDT_VECTOR(x)	((uchar_t)((x) & 0xFF))
309 #define	AV_PENDING	0x1000
310 #define	AV_ACTIVE_LOW	0x2000		/* only for integrated APIC */
311 #define	AV_REMOTE_IRR   0x4000		/* IOAPIC RDT-specific */
312 #define	AV_LEVEL	0x8000
313 #define	AV_DEASSERT	AV_LEVEL
314 #define	AV_ASSERT	0xc000
315 
316 #define	AV_READ_PENDING	0x10000
317 #define	AV_REMOTE_STATUS	0x20000	/* 1 = valid, 0 = invalid */
318 
319 #define	AV_SH_SELF		0x40000	/* Short hand for self */
320 #define	AV_SH_ALL_INCSELF	0x80000 /* All processors */
321 #define	AV_SH_ALL_EXCSELF	0xc0000 /* All excluding self */
322 /* spurious interrupt vector register					*/
323 #define	AV_UNIT_ENABLE	0x100
324 
325 /* timer vector table							*/
326 #define	AV_TIME		0x20000	/* Set timer mode to periodic */
327 
328 #define	APIC_MAXVAL	0xffffffffUL
329 #define	APIC_TIME_MIN	0x5000
330 #define	APIC_TIME_COUNT	0x4000
331 
332 /*
333  * Range of the low byte value in apic_tick before starting calibration
334  */
335 #define	APIC_LB_MIN	0x60
336 #define	APIC_LB_MAX	0xe0
337 
338 #define	APIC_MAX_VECTOR		255
339 #define	APIC_RESV_VECT		0x00
340 #define	APIC_RESV_IRQ		0xfe
341 #define	APIC_BASE_VECT		0x20	/* This will come in as interrupt 0 */
342 #define	APIC_AVAIL_VECTOR	(APIC_MAX_VECTOR+1-APIC_BASE_VECT)
343 #define	APIC_VECTOR_PER_IPL	0x10	/* # of vectors before PRI changes */
344 #define	APIC_VECTOR(ipl)	(apic_ipltopri[ipl] | APIC_RESV_VECT)
345 #define	APIC_VECTOR_MASK	0x0f
346 #define	APIC_HI_PRI_VECTS	2	/* vects reserved for hi pri reqs */
347 #define	APIC_IPL_MASK		0xf0
348 #define	APIC_IPL_SHIFT		4	/* >> to get ipl part of vector */
349 #define	APIC_FIRST_FREE_IRQ	0x10
350 #define	APIC_MAX_ISA_IRQ	15
351 #define	APIC_IPL0		0x0f	/* let IDLE_IPL be the lowest */
352 #define	APIC_IDLE_IPL		0x00
353 
354 #define	APIC_MASK_ALL		0xf0	/* Mask all interrupts */
355 
356 /* spurious interrupt vector						*/
357 #define	APIC_SPUR_INTR		0xFF
358 
359 /* special or reserve vectors */
360 #define	APIC_CHECK_RESERVE_VECTORS(v) \
361 	(((v) == T_FASTTRAP) || ((v) == APIC_SPUR_INTR) || \
362 	((v) == T_SYSCALLINT) || ((v) == T_DTRACE_RET) || ((v) == T_INT80))
363 
364 /* cmos shutdown code for BIOS						*/
365 #define	BIOS_SHUTDOWN		0x0a
366 
367 /* define the entry types for BIOS information tables as defined in PC+MP */
368 #define	APIC_CPU_ENTRY		0
369 #define	APIC_BUS_ENTRY		1
370 #define	APIC_IO_ENTRY		2
371 #define	APIC_IO_INTR_ENTRY	3
372 #define	APIC_LOCAL_INTR_ENTRY	4
373 #define	APIC_MPTBL_ADDR		(639 * 1024)
374 /*
375  * The MP Floating Point structure could be in 1st 1KB of EBDA or last KB
376  * of system base memory or in ROM between 0xF0000 and 0xFFFFF
377  */
378 #define	MPFPS_RAM_WIN_LEN	1024
379 #define	MPFPS_ROM_WIN_START	(uint32_t)0xf0000
380 #define	MPFPS_ROM_WIN_LEN	0x10000
381 
382 #define	EISA_LEVEL_CNTL		0x4D0
383 
384 /* definitions for apic_irq_table */
385 #define	FREE_INDEX		(short)-1	/* empty slot */
386 #define	RESERVE_INDEX		(short)-2	/* ipi, softintr, clkintr */
387 #define	ACPI_INDEX		(short)-3	/* ACPI */
388 #define	MSI_INDEX		(short)-4	/* MSI */
389 #define	MSIX_INDEX		(short)-5	/* MSI-X */
390 #define	DEFAULT_INDEX		(short)0x7FFF
391 	/* biggest positive no. to avoid conflict with actual index */
392 
393 #define	APIC_IS_MSI_OR_MSIX_INDEX(index) \
394 	((index) == MSI_INDEX || (index) == MSIX_INDEX)
395 
396 /*
397  * definitions for MSI Address
398  */
399 #define	MSI_ADDR_HDR		APIC_LOCAL_ADDR
400 #define	MSI_ADDR_DEST_SHIFT	12	/* Destination CPU's apic id */
401 #define	MSI_ADDR_RH_FIXED	0x0	/* Redirection Hint Fixed */
402 #define	MSI_ADDR_RH_LOPRI	0x1	/* Redirection Hint Lowest priority */
403 #define	MSI_ADDR_RH_SHIFT	3
404 #define	MSI_ADDR_DM_PHYSICAL	0x0	/* Physical Destination Mode */
405 #define	MSI_ADDR_DM_LOGICAL	0x1	/* Logical Destination Mode */
406 #define	MSI_ADDR_DM_SHIFT	2
407 
408 /*
409  * definitions for MSI Data
410  */
411 #define	MSI_DATA_DELIVERY_FIXED		0x0	/* Fixed delivery */
412 #define	MSI_DATA_DELIVERY_LOPRI		0x1	/* Lowest priority delivery */
413 #define	MSI_DATA_DELIVERY_SMI		0x2
414 #define	MSI_DATA_DELIVERY_NMI		0x4
415 #define	MSI_DATA_DELIVERY_INIT		0x5
416 #define	MSI_DATA_DELIVERY_EXTINT	0x7
417 #define	MSI_DATA_DELIVERY_SHIFT		8
418 #define	MSI_DATA_TM_EDGE		0x0	/* MSI is edge sensitive */
419 #define	MSI_DATA_TM_LEVEL		0x1	/* level sensitive */
420 #define	MSI_DATA_TM_SHIFT		15
421 #define	MSI_DATA_LEVEL_DEASSERT		0x0
422 #define	MSI_DATA_LEVEL_ASSERT		0x1	/* Edge always assert */
423 #define	MSI_DATA_LEVEL_SHIFT		14
424 
425 /*
426  * use to define each irq setup by the apic
427  */
428 typedef struct	apic_irq {
429 	short	airq_mps_intr_index;	/* index into mps interrupt entries */
430 					/*  table */
431 	uchar_t	airq_intin_no;
432 	uchar_t	airq_ioapicindex;
433 	dev_info_t	*airq_dip; /* device corresponding to this interrupt */
434 	/*
435 	 * IRQ could be shared (in H/W) in which case dip & major will be
436 	 * for the one that was last added at this level. We cannot keep a
437 	 * linked list as delspl does not tell us which device has just
438 	 * been unloaded. For most servers where we are worried about
439 	 * performance, interrupt should not be shared & should not be
440 	 * a problem. This does not cause any correctness issue - dip is
441 	 * used only as an optimisation to avoid going thru all the tables
442 	 * in translate IRQ (which is always called twice due to brokenness
443 	 * in the way IPLs are determined for devices). major is used only
444 	 * to bind interrupts corresponding to the same device on the same
445 	 * CPU. Not finding major will just cause it to be potentially bound
446 	 * to another CPU.
447 	 */
448 	major_t	airq_major;	/* major number corresponding to the device */
449 	ushort_t airq_rdt_entry;	/* level, polarity & trig mode */
450 	ushort_t airq_cpu;		/* Which CPU are we bound to ? */
451 	ushort_t airq_temp_cpu; /* Could be diff from cpu due to disable_intr */
452 	uchar_t	airq_vector;		/* Vector chosen for this irq */
453 	uchar_t	airq_share;		/* number of interrupts at this irq */
454 	uchar_t	airq_share_id;		/* id to identify source from irqno */
455 	uchar_t	airq_ipl;		/* The ipl at which this is handled */
456 	iflag_t airq_iflag;		/* interrupt flag */
457 	uchar_t	airq_origirq;		/* original irq passed in */
458 	uint_t	airq_busy;		/* How frequently did clock find */
459 					/* us in this */
460 	struct apic_irq *airq_next;	/* chain of shared intpts */
461 } apic_irq_t;
462 
463 #define	IRQ_USER_BOUND	0x8000	/* user requested bind if set in airq_cpu */
464 #define	IRQ_UNBOUND	(ushort_t)-1 /* set in airq_cpu and airq_temp_cpu */
465 #define	IRQ_UNINIT	(ushort_t)-2 /* in airq_temp_cpu till addspl called */
466 
467 /* Macros to help deal with shared interrupts */
468 #define	VIRTIRQ(irqno, share_id)	((irqno) | ((share_id) << 8))
469 #define	IRQINDEX(irq)	((irq) & 0xFF)	/* Mask to get irq from virtual irq */
470 
471 typedef struct apic_cpus_info {
472 	uchar_t	aci_local_id;
473 	uchar_t	aci_local_ver;
474 	uchar_t	aci_status;
475 	uchar_t	aci_redistribute;	/* Selected for redistribution */
476 	uint_t	aci_busy;		/* Number of ticks we were in ISR */
477 	uint_t	aci_spur_cnt;		/* # of spurious intpts on this cpu */
478 	uint_t	aci_ISR_in_progress;	/* big enough to hold 1 << MAXIPL */
479 	uchar_t	aci_curipl;		/* IPL of current ISR */
480 	uchar_t	aci_current[MAXIPL];	/* Current IRQ at each IPL */
481 	uint32_t aci_bound;		/* # of user requested binds ? */
482 	uint32_t aci_temp_bound;	/* # of non user IRQ binds */
483 	uchar_t	aci_idle;		/* The CPU is idle */
484 	/*
485 	 * fill to make sure each struct is in seperate cache line.
486 	 * Or atleast that ISR_in_progress/curipl is not shared with something
487 	 * that is read/written heavily by another CPU.
488 	 * Given kmem_alloc guarantees alignment to 8 bytes, having 8
489 	 * bytes on each side will isolate us in a 16 byte cache line.
490 	 */
491 } apic_cpus_info_t;
492 
493 #define	APIC_CPU_ONLINE		1
494 #define	APIC_CPU_INTR_ENABLE	2
495 
496 /*
497  * Various poweroff methods and ports & bits for them
498  */
499 #define	APIC_POWEROFF_NONE		0
500 #define	APIC_POWEROFF_VIA_RTC		1
501 #define	APIC_POWEROFF_VIA_ASPEN_BMC	2
502 #define	APIC_POWEROFF_VIA_SITKA_BMC	3
503 
504 /* For RTC */
505 #define	RTC_REGA		0x0a
506 #define	PFR_REG			0x4a    /* extended control register */
507 #define	PAB_CBIT		0x08
508 #define	WF_FLAG			0x02
509 #define	KS_FLAG			0x01
510 #define	EXT_BANK		0x10
511 
512 /* For Aspen/Drake BMC */
513 
514 #define	CC_SMS_GET_STATUS	0x40
515 #define	CC_SMS_WR_START		0x41
516 #define	CC_SMS_WR_NEXT		0x42
517 #define	CC_SMS_WR_END		0x43
518 
519 #define	MISMIC_DATA_REGISTER	0x0ca9
520 #define	MISMIC_CNTL_REGISTER	0x0caa
521 #define	MISMIC_FLAG_REGISTER	0x0cab
522 
523 #define	MISMIC_BUSY_MASK	0x01
524 
525 /* For Sitka/Cabrillo BMC */
526 
527 #define	SMS_GET_STATUS		0x60
528 #define	SMS_WRITE_START		0x61
529 #define	SMS_WRITE_END		0x62
530 
531 #define	SMS_DATA_REGISTER	0x0ca2
532 #define	SMS_STATUS_REGISTER	0x0ca3
533 #define	SMS_COMMAND_REGISTER	0x0ca3
534 
535 #define	SMS_IBF_MASK		0x02
536 #define	SMS_STATE_MASK		0xc0
537 
538 #define	SMS_IDLE_STATE		0x00
539 #define	SMS_READ_STATE		0x40
540 #define	SMS_WRITE_STATE		0x80
541 #define	SMS_ERROR_STATE		0xc0
542 
543 extern uint32_t ioapic_read(int ioapic_ix, uint32_t reg);
544 extern void ioapic_write(int ioapic_ix, uint32_t reg, uint32_t value);
545 
546 /* Macros for reading/writing the IOAPIC RDT entries */
547 #define	READ_IOAPIC_RDT_ENTRY_LOW_DWORD(ioapic_ix, ipin) \
548 	ioapic_read(ioapic_ix, APIC_RDT_CMD + (2 * (ipin)))
549 
550 #define	READ_IOAPIC_RDT_ENTRY_HIGH_DWORD(ioapic_ix, ipin) \
551 	ioapic_read(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)))
552 
553 #define	WRITE_IOAPIC_RDT_ENTRY_LOW_DWORD(ioapic_ix, ipin, value) \
554 	ioapic_write(ioapic_ix, APIC_RDT_CMD + (2 * (ipin)), value)
555 
556 #define	WRITE_IOAPIC_RDT_ENTRY_HIGH_DWORD(ioapic_ix, ipin, value) \
557 	ioapic_write(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)), value)
558 
559 /* Used by PSM_INTR_OP_GET_INTR to return device information. */
560 typedef struct {
561 	uint16_t	avgi_req_flags;	/* request flags - to kernel */
562 	uint8_t		avgi_num_devs;	/* # devs on this ino - from kernel */
563 	uint8_t		avgi_vector;	/* vector */
564 	uint32_t	avgi_cpu_id;	/* cpu of interrupt - from kernel */
565 	dev_info_t	**avgi_dip_list; /* kmem_alloc'ed list of dev_infos. */
566 					/* Contains num_devs elements. */
567 } apic_get_intr_t;
568 
569 /* Masks for avgi_req_flags. */
570 #define	PSMGI_REQ_CPUID		0x1	/* Request CPU ID */
571 #define	PSMGI_REQ_NUM_DEVS	0x2	/* Request num of devices on vector */
572 #define	PSMGI_REQ_VECTOR	0x4
573 #define	PSMGI_REQ_GET_DEVS	0x8	/* Request device list */
574 #define	PSMGI_REQ_ALL		0xf	/* Request everything */
575 
576 /* Other flags */
577 #define	PSMGI_INTRBY_VEC	0	/* Vec passed.  xlate to IRQ needed */
578 #define	PSMGI_INTRBY_IRQ	0x8000	/* IRQ passed.  no xlate needed */
579 #define	PSMGI_INTRBY_FLAGS	0x8000	/* Mask for this flag */
580 
581 /*
582  * Use scaled-fixed-point arithmetic to calculate apic ticks.
583  * Round when dividing (by adding half of divisor to dividend)
584  * for one extra bit of precision.
585  */
586 
587 #define	SF	(1ULL<<20)		/* Scaling Factor: scale by 2^20 */
588 #define	APIC_TICKS_TO_NSECS(ticks)	((((int64_t)(ticks) * SF) + \
589 					apic_ticks_per_SFnsecs / 2) / \
590 					apic_ticks_per_SFnsecs);
591 #define	APIC_NSECS_TO_TICKS(nsecs)	(((int64_t)(nsecs) * \
592 					apic_ticks_per_SFnsecs + (SF/2)) / SF)
593 
594 extern int	apic_verbose;
595 
596 /* Flag definitions for apic_verbose */
597 #define	APIC_VERBOSE_IOAPIC_FLAG		0x00000001
598 #define	APIC_VERBOSE_IRQ_FLAG			0x00000002
599 #define	APIC_VERBOSE_POWEROFF_FLAG		0x00000004
600 #define	APIC_VERBOSE_POWEROFF_PAUSE_FLAG	0x00000008
601 
602 
603 #define	APIC_VERBOSE_IOAPIC(fmt) \
604 	if (apic_verbose & APIC_VERBOSE_IOAPIC_FLAG) \
605 		cmn_err fmt;
606 
607 #define	APIC_VERBOSE_IRQ(fmt) \
608 	if (apic_verbose & APIC_VERBOSE_IRQ_FLAG) \
609 		cmn_err fmt;
610 
611 #define	APIC_VERBOSE_POWEROFF(fmt) \
612 	if (apic_verbose & APIC_VERBOSE_POWEROFF_FLAG) \
613 		prom_printf fmt;
614 
615 #ifdef DEBUG
616 #define	DENT		0x0001
617 extern int	apic_debug;
618 /*
619  * set apic_restrict_vector to the # of vectors we want to allow per range
620  * useful in testing shared interrupt logic by setting it to 2 or 3
621  */
622 extern int	apic_restrict_vector;
623 
624 #define	APIC_DEBUG_MSGBUFSIZE	2048
625 extern int	apic_debug_msgbuf[];
626 extern int	apic_debug_msgbufindex;
627 
628 /*
629  * Put "int" info into debug buffer. No MP consistency, but light weight.
630  * Good enough for most debugging.
631  */
632 #define	APIC_DEBUG_BUF_PUT(x) \
633 	apic_debug_msgbuf[apic_debug_msgbufindex++] = x; \
634 	if (apic_debug_msgbufindex >= (APIC_DEBUG_MSGBUFSIZE - NCPU)) \
635 		apic_debug_msgbufindex = 0;
636 
637 #endif /* DEBUG */
638 
639 extern int	apic_error;
640 /* values which apic_error can take. Not catastrophic, but may help debug */
641 #define	APIC_ERR_BOOT_EOI		0x1
642 #define	APIC_ERR_GET_IPIVECT_FAIL	0x2
643 #define	APIC_ERR_INVALID_INDEX		0x4
644 #define	APIC_ERR_MARK_VECTOR_FAIL	0x8
645 #define	APIC_ERR_APIC_ERROR		0x40000000
646 #define	APIC_ERR_NMI			0x80000000
647 
648 /*
649  * ACPI definitions
650  */
651 /* _PIC method arguments */
652 #define	ACPI_PIC_MODE	0
653 #define	ACPI_APIC_MODE	1
654 
655 /* APIC error flags we care about */
656 #define	APIC_SEND_CS_ERROR	0x01
657 #define	APIC_RECV_CS_ERROR	0x02
658 #define	APIC_CS_ERRORS		(APIC_SEND_CS_ERROR|APIC_RECV_CS_ERROR)
659 
660 /* Maximum number of times to retry reprogramming at apic_intr_exit time */
661 #define	APIC_REPROGRAM_MAX_TRIES 10000
662 
663 /* Parameter to ioapic_init_intr(): Should ioapic ints be masked? */
664 #define	IOAPIC_MASK 1
665 #define	IOAPIC_NOMASK 0
666 
667 #define	INTR_ROUND_ROBIN_WITH_AFFINITY	0
668 #define	INTR_ROUND_ROBIN		1
669 #define	INTR_LOWEST_PRIORITY		2
670 
671 
672 
673 struct ioapic_reprogram_data {
674 	boolean_t			done;
675 	apic_irq_t			*irqp;
676 	/* The CPU to which the int will be bound */
677 	int				bindcpu;
678 	/* # times the reprogram timeout was called */
679 	unsigned			tries;
680 };
681 
682 /* The irq # is implicit in the array index: */
683 extern struct ioapic_reprogram_data apic_reprogram_info[];
684 
685 extern void apic_intr_exit(int ipl, int irq);
686 extern int apic_probe_common();
687 extern void apic_init_common();
688 extern void ioapic_init_intr();
689 extern void ioapic_disable_redirection();
690 extern int apic_addspl_common(int irqno, int ipl, int min_ipl, int max_ipl);
691 extern int apic_delspl_common(int irqno, int ipl, int min_ipl, int max_ipl);
692 extern void apic_cleanup_busy();
693 extern void apic_intr_redistribute();
694 extern uchar_t apic_xlate_vector(uchar_t vector);
695 extern uchar_t apic_allocate_vector(int ipl, int irq, int pri);
696 extern void apic_free_vector(uchar_t vector);
697 extern int apic_allocate_irq(int irq);
698 extern ushort_t apic_bind_intr(dev_info_t *dip, int irq, uchar_t ioapicid,
699     uchar_t intin);
700 extern int apic_rebind(apic_irq_t *irq_ptr, int bind_cpu,
701     struct ioapic_reprogram_data *drep);
702 extern int apic_rebind_all(apic_irq_t *irq_ptr, int bind_cpu);
703 extern int apic_introp_xlate(dev_info_t *dip, struct intrspec *ispec, int type);
704 extern int apic_intr_ops(dev_info_t *dip, ddi_intr_handle_impl_t *hdlp,
705     psm_intr_op_t intr_op, int *result);
706 extern int apic_state(psm_state_request_t *);
707 extern boolean_t apic_cpu_in_range(int cpu);
708 extern int apic_check_msi_support();
709 extern apic_irq_t *apic_find_irq(dev_info_t *dip, struct intrspec *ispec,
710     int type);
711 extern int apic_navail_vector(dev_info_t *dip, int pri);
712 extern int apic_alloc_msi_vectors(dev_info_t *dip, int inum, int count,
713     int pri, int behavior);
714 extern int apic_alloc_msix_vectors(dev_info_t *dip, int inum, int count,
715     int pri, int behavior);
716 extern void  apic_free_vectors(dev_info_t *dip, int inum, int count, int pri,
717     int type);
718 extern int apic_get_vector_intr_info(int vecirq,
719     apic_get_intr_t *intr_params_p);
720 extern uchar_t apic_find_multi_vectors(int pri, int count);
721 extern int apic_setup_io_intr(void *p, int irq, boolean_t deferred);
722 extern uint32_t *mapin_apic(uint32_t addr, size_t len, int flags);
723 extern uint32_t *mapin_ioapic(uint32_t addr, size_t len, int flags);
724 extern void mapout_apic(caddr_t addr, size_t len);
725 extern void mapout_ioapic(caddr_t addr, size_t len);
726 extern uchar_t apic_modify_vector(uchar_t vector, int irq);
727 extern void apic_pci_msi_unconfigure(dev_info_t *rdip, int type, int inum);
728 extern void apic_pci_msi_disable_mode(dev_info_t *rdip, int type);
729 extern void apic_pci_msi_enable_mode(dev_info_t *rdip, int type, int inum);
730 extern void apic_pci_msi_enable_vector(dev_info_t *dip, int type, int inum,
731     int vector, int count, int target_apic_id);
732 extern char *apic_get_apic_type();
733 extern uint16_t	apic_get_apic_version();
734 
735 extern volatile uint32_t *apicadr;	/* virtual addr of local APIC   */
736 extern int apic_forceload;
737 extern apic_cpus_info_t *apic_cpus;
738 #ifdef _MACHDEP
739 extern cpuset_t apic_cpumask;
740 #endif
741 extern uint_t apic_picinit_called;
742 extern uchar_t apic_ipltopri[MAXIPL+1];
743 extern uchar_t apic_vector_to_irq[APIC_MAX_VECTOR+1];
744 extern int apic_max_device_irq;
745 extern int apic_min_device_irq;
746 extern apic_irq_t *apic_irq_table[APIC_MAX_VECTOR+1];
747 extern volatile uint32_t *apicioadr[MAX_IO_APIC];
748 extern uchar_t apic_io_id[MAX_IO_APIC];
749 extern lock_t apic_ioapic_lock;
750 extern uint32_t apic_physaddr[MAX_IO_APIC];
751 extern kmutex_t airq_mutex;
752 extern int apic_first_avail_irq;
753 extern uchar_t apic_vectortoipl[APIC_AVAIL_VECTOR / APIC_VECTOR_PER_IPL];
754 extern int apic_imcrp;
755 extern int apic_revector_pending;
756 extern char apic_level_intr[APIC_MAX_VECTOR+1];
757 extern uchar_t apic_resv_vector[MAXIPL+1];
758 extern int apic_sample_factor_redistribution;
759 extern int apic_int_busy_mark;
760 extern int apic_int_free_mark;
761 extern int apic_diff_for_redistribution;
762 extern int apic_poweroff_method;
763 extern int apic_enable_acpi;
764 extern int apic_nproc;
765 extern int apic_next_bind_cpu;
766 extern int apic_redistribute_sample_interval;
767 extern int apic_multi_msi_enable;
768 extern int apic_multi_msi_max;
769 extern int apic_msix_max;
770 extern int apic_sci_vect;
771 extern uchar_t apic_ipls[];
772 
773 
774 #ifdef	__cplusplus
775 }
776 #endif
777 
778 #endif	/* _SYS_APIC_APIC_H */
779