1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_APICDEF_H
3#define _ASM_X86_APICDEF_H
4
5/*
6 * Constants for various Intel APICs. (local APIC, IOAPIC, etc.)
7 *
8 * Alan Cox <Alan.Cox@linux.org>, 1995.
9 * Ingo Molnar <mingo@redhat.com>, 1999, 2000
10 */
11
12#define IO_APIC_DEFAULT_PHYS_BASE 0xfec00000
13#define APIC_DEFAULT_PHYS_BASE 0xfee00000
14
15/*
16 * This is the IO-APIC register space as specified
17 * by Intel docs:
18 */
19#define IO_APIC_SLOT_SIZE 1024
20
21#define APIC_ID 0x20
22
23#define APIC_LVR 0x30
24#define APIC_LVR_MASK 0xFF00FF
25#define APIC_LVR_DIRECTED_EOI (1 << 24)
26#define GET_APIC_VERSION(x) ((x) & 0xFFu)
27#define GET_APIC_MAXLVT(x) (((x) >> 16) & 0xFFu)
28#ifdef CONFIG_X86_32
29# define APIC_INTEGRATED(x) ((x) & 0xF0u)
30#else
31# define APIC_INTEGRATED(x) (1)
32#endif
33#define APIC_XAPIC(x) ((x) >= 0x14)
34#define APIC_EXT_SPACE(x) ((x) & 0x80000000)
35#define APIC_TASKPRI 0x80
36#define APIC_TPRI_MASK 0xFFu
37#define APIC_ARBPRI 0x90
38#define APIC_ARBPRI_MASK 0xFFu
39#define APIC_PROCPRI 0xA0
40#define APIC_EOI 0xB0
41#define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */
42#define APIC_RRR 0xC0
43#define APIC_LDR 0xD0
44#define APIC_LDR_MASK (0xFFu << 24)
45#define GET_APIC_LOGICAL_ID(x) (((x) >> 24) & 0xFFu)
46#define SET_APIC_LOGICAL_ID(x) (((x) << 24))
47#define APIC_ALL_CPUS 0xFFu
48#define APIC_DFR 0xE0
49#define APIC_DFR_CLUSTER 0x0FFFFFFFul
50#define APIC_DFR_FLAT 0xFFFFFFFFul
51#define APIC_SPIV 0xF0
52#define APIC_SPIV_DIRECTED_EOI (1 << 12)
53#define APIC_SPIV_FOCUS_DISABLED (1 << 9)
54#define APIC_SPIV_APIC_ENABLED (1 << 8)
55#define APIC_ISR 0x100
56#define APIC_ISR_NR 0x8 /* Number of 32 bit ISR registers. */
57#define APIC_TMR 0x180
58#define APIC_IRR 0x200
59#define APIC_ESR 0x280
60#define APIC_ESR_SEND_CS 0x00001
61#define APIC_ESR_RECV_CS 0x00002
62#define APIC_ESR_SEND_ACC 0x00004
63#define APIC_ESR_RECV_ACC 0x00008
64#define APIC_ESR_SENDILL 0x00020
65#define APIC_ESR_RECVILL 0x00040
66#define APIC_ESR_ILLREGA 0x00080
67#define APIC_LVTCMCI 0x2f0
68#define APIC_ICR 0x300
69#define APIC_DEST_SELF 0x40000
70#define APIC_DEST_ALLINC 0x80000
71#define APIC_DEST_ALLBUT 0xC0000
72#define APIC_ICR_RR_MASK 0x30000
73#define APIC_ICR_RR_INVALID 0x00000
74#define APIC_ICR_RR_INPROG 0x10000
75#define APIC_ICR_RR_VALID 0x20000
76#define APIC_INT_LEVELTRIG 0x08000
77#define APIC_INT_ASSERT 0x04000
78#define APIC_ICR_BUSY 0x01000
79#define APIC_DEST_LOGICAL 0x00800
80#define APIC_DEST_PHYSICAL 0x00000
81#define APIC_DM_FIXED 0x00000
82#define APIC_DM_FIXED_MASK 0x00700
83#define APIC_DM_LOWEST 0x00100
84#define APIC_DM_SMI 0x00200
85#define APIC_DM_REMRD 0x00300
86#define APIC_DM_NMI 0x00400
87#define APIC_DM_INIT 0x00500
88#define APIC_DM_STARTUP 0x00600
89#define APIC_DM_EXTINT 0x00700
90#define APIC_VECTOR_MASK 0x000FF
91#define APIC_ICR2 0x310
92#define GET_XAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF)
93#define SET_XAPIC_DEST_FIELD(x) ((x) << 24)
94#define APIC_LVTT 0x320
95#define APIC_LVTTHMR 0x330
96#define APIC_LVTPC 0x340
97#define APIC_LVT0 0x350
98#define APIC_LVT_TIMER_ONESHOT (0 << 17)
99#define APIC_LVT_TIMER_PERIODIC (1 << 17)
100#define APIC_LVT_TIMER_TSCDEADLINE (2 << 17)
101#define APIC_LVT_MASKED (1 << 16)
102#define APIC_LVT_LEVEL_TRIGGER (1 << 15)
103#define APIC_LVT_REMOTE_IRR (1 << 14)
104#define APIC_INPUT_POLARITY (1 << 13)
105#define APIC_SEND_PENDING (1 << 12)
106#define APIC_MODE_MASK 0x700
107#define GET_APIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7)
108#define SET_APIC_DELIVERY_MODE(x, y) (((x) & ~0x700) | ((y) << 8))
109#define APIC_MODE_FIXED 0x0
110#define APIC_MODE_NMI 0x4
111#define APIC_MODE_EXTINT 0x7
112#define APIC_LVT1 0x360
113#define APIC_LVTERR 0x370
114#define APIC_TMICT 0x380
115#define APIC_TMCCT 0x390
116#define APIC_TDCR 0x3E0
117#define APIC_SELF_IPI 0x3F0
118#define APIC_TDR_DIV_TMBASE (1 << 2)
119#define APIC_TDR_DIV_1 0xB
120#define APIC_TDR_DIV_2 0x0
121#define APIC_TDR_DIV_4 0x1
122#define APIC_TDR_DIV_8 0x2
123#define APIC_TDR_DIV_16 0x3
124#define APIC_TDR_DIV_32 0x8
125#define APIC_TDR_DIV_64 0x9
126#define APIC_TDR_DIV_128 0xA
127#define APIC_EFEAT 0x400
128#define APIC_ECTRL 0x410
129#define APIC_EILVTn(n) (0x500 + 0x10 * n)
130#define APIC_EILVT_NR_AMD_K8 1 /* # of extended interrupts */
131#define APIC_EILVT_NR_AMD_10H 4
132#define APIC_EILVT_NR_MAX APIC_EILVT_NR_AMD_10H
133#define APIC_EILVT_LVTOFF(x) (((x) >> 4) & 0xF)
134#define APIC_EILVT_MSG_FIX 0x0
135#define APIC_EILVT_MSG_SMI 0x2
136#define APIC_EILVT_MSG_NMI 0x4
137#define APIC_EILVT_MSG_EXT 0x7
138#define APIC_EILVT_MASKED (1 << 16)
139
140#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
141#define APIC_BASE_MSR 0x800
142#define XAPIC_ENABLE (1UL << 11)
143#define X2APIC_ENABLE (1UL << 10)
144
145#ifdef CONFIG_X86_32
146# define MAX_IO_APICS 64
147# define MAX_LOCAL_APIC 256
148#else
149# define MAX_IO_APICS 128
150# define MAX_LOCAL_APIC 32768
151#endif
152
153/*
154 * All x86-64 systems are xAPIC compatible.
155 * In the following, "apicid" is a physical APIC ID.
156 */
157#define XAPIC_DEST_CPUS_SHIFT 4
158#define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
159#define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
160#define APIC_CLUSTER(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK)
161#define APIC_CLUSTERID(apicid) (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT)
162#define APIC_CPUID(apicid) ((apicid) & XAPIC_DEST_CPUS_MASK)
163#define NUM_APIC_CLUSTERS ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT)
164
165/*
166 * the local APIC register structure, memory mapped. Not terribly well
167 * tested, but we might eventually use this one in the future - the
168 * problem why we cannot use it right now is the P5 APIC, it has an
169 * errata which cannot take 8-bit reads and writes, only 32-bit ones ...
170 */
171#define u32 unsigned int
172
173struct local_apic {
174
175/*000*/ struct { u32 __reserved[4]; } __reserved_01;
176
177/*010*/ struct { u32 __reserved[4]; } __reserved_02;
178
179/*020*/ struct { /* APIC ID Register */
180 u32 __reserved_1 : 24,
181 phys_apic_id : 4,
182 __reserved_2 : 4;
183 u32 __reserved[3];
184 } id;
185
186/*030*/ const
187 struct { /* APIC Version Register */
188 u32 version : 8,
189 __reserved_1 : 8,
190 max_lvt : 8,
191 __reserved_2 : 8;
192 u32 __reserved[3];
193 } version;
194
195/*040*/ struct { u32 __reserved[4]; } __reserved_03;
196
197/*050*/ struct { u32 __reserved[4]; } __reserved_04;
198
199/*060*/ struct { u32 __reserved[4]; } __reserved_05;
200
201/*070*/ struct { u32 __reserved[4]; } __reserved_06;
202
203/*080*/ struct { /* Task Priority Register */
204 u32 priority : 8,
205 __reserved_1 : 24;
206 u32 __reserved_2[3];
207 } tpr;
208
209/*090*/ const
210 struct { /* Arbitration Priority Register */
211 u32 priority : 8,
212 __reserved_1 : 24;
213 u32 __reserved_2[3];
214 } apr;
215
216/*0A0*/ const
217 struct { /* Processor Priority Register */
218 u32 priority : 8,
219 __reserved_1 : 24;
220 u32 __reserved_2[3];
221 } ppr;
222
223/*0B0*/ struct { /* End Of Interrupt Register */
224 u32 eoi;
225 u32 __reserved[3];
226 } eoi;
227
228/*0C0*/ struct { u32 __reserved[4]; } __reserved_07;
229
230/*0D0*/ struct { /* Logical Destination Register */
231 u32 __reserved_1 : 24,
232 logical_dest : 8;
233 u32 __reserved_2[3];
234 } ldr;
235
236/*0E0*/ struct { /* Destination Format Register */
237 u32 __reserved_1 : 28,
238 model : 4;
239 u32 __reserved_2[3];
240 } dfr;
241
242/*0F0*/ struct { /* Spurious Interrupt Vector Register */
243 u32 spurious_vector : 8,
244 apic_enabled : 1,
245 focus_cpu : 1,
246 __reserved_2 : 22;
247 u32 __reserved_3[3];
248 } svr;
249
250/*100*/ struct { /* In Service Register */
251/*170*/ u32 bitfield;
252 u32 __reserved[3];
253 } isr [8];
254
255/*180*/ struct { /* Trigger Mode Register */
256/*1F0*/ u32 bitfield;
257 u32 __reserved[3];
258 } tmr [8];
259
260/*200*/ struct { /* Interrupt Request Register */
261/*270*/ u32 bitfield;
262 u32 __reserved[3];
263 } irr [8];
264
265/*280*/ union { /* Error Status Register */
266 struct {
267 u32 send_cs_error : 1,
268 receive_cs_error : 1,
269 send_accept_error : 1,
270 receive_accept_error : 1,
271 __reserved_1 : 1,
272 send_illegal_vector : 1,
273 receive_illegal_vector : 1,
274 illegal_register_address : 1,
275 __reserved_2 : 24;
276 u32 __reserved_3[3];
277 } error_bits;
278 struct {
279 u32 errors;
280 u32 __reserved_3[3];
281 } all_errors;
282 } esr;
283
284/*290*/ struct { u32 __reserved[4]; } __reserved_08;
285
286/*2A0*/ struct { u32 __reserved[4]; } __reserved_09;
287
288/*2B0*/ struct { u32 __reserved[4]; } __reserved_10;
289
290/*2C0*/ struct { u32 __reserved[4]; } __reserved_11;
291
292/*2D0*/ struct { u32 __reserved[4]; } __reserved_12;
293
294/*2E0*/ struct { u32 __reserved[4]; } __reserved_13;
295
296/*2F0*/ struct { u32 __reserved[4]; } __reserved_14;
297
298/*300*/ struct { /* Interrupt Command Register 1 */
299 u32 vector : 8,
300 delivery_mode : 3,
301 destination_mode : 1,
302 delivery_status : 1,
303 __reserved_1 : 1,
304 level : 1,
305 trigger : 1,
306 __reserved_2 : 2,
307 shorthand : 2,
308 __reserved_3 : 12;
309 u32 __reserved_4[3];
310 } icr1;
311
312/*310*/ struct { /* Interrupt Command Register 2 */
313 union {
314 u32 __reserved_1 : 24,
315 phys_dest : 4,
316 __reserved_2 : 4;
317 u32 __reserved_3 : 24,
318 logical_dest : 8;
319 } dest;
320 u32 __reserved_4[3];
321 } icr2;
322
323/*320*/ struct { /* LVT - Timer */
324 u32 vector : 8,
325 __reserved_1 : 4,
326 delivery_status : 1,
327 __reserved_2 : 3,
328 mask : 1,
329 timer_mode : 1,
330 __reserved_3 : 14;
331 u32 __reserved_4[3];
332 } lvt_timer;
333
334/*330*/ struct { /* LVT - Thermal Sensor */
335 u32 vector : 8,
336 delivery_mode : 3,
337 __reserved_1 : 1,
338 delivery_status : 1,
339 __reserved_2 : 3,
340 mask : 1,
341 __reserved_3 : 15;
342 u32 __reserved_4[3];
343 } lvt_thermal;
344
345/*340*/ struct { /* LVT - Performance Counter */
346 u32 vector : 8,
347 delivery_mode : 3,
348 __reserved_1 : 1,
349 delivery_status : 1,
350 __reserved_2 : 3,
351 mask : 1,
352 __reserved_3 : 15;
353 u32 __reserved_4[3];
354 } lvt_pc;
355
356/*350*/ struct { /* LVT - LINT0 */
357 u32 vector : 8,
358 delivery_mode : 3,
359 __reserved_1 : 1,
360 delivery_status : 1,
361 polarity : 1,
362 remote_irr : 1,
363 trigger : 1,
364 mask : 1,
365 __reserved_2 : 15;
366 u32 __reserved_3[3];
367 } lvt_lint0;
368
369/*360*/ struct { /* LVT - LINT1 */
370 u32 vector : 8,
371 delivery_mode : 3,
372 __reserved_1 : 1,
373 delivery_status : 1,
374 polarity : 1,
375 remote_irr : 1,
376 trigger : 1,
377 mask : 1,
378 __reserved_2 : 15;
379 u32 __reserved_3[3];
380 } lvt_lint1;
381
382/*370*/ struct { /* LVT - Error */
383 u32 vector : 8,
384 __reserved_1 : 4,
385 delivery_status : 1,
386 __reserved_2 : 3,
387 mask : 1,
388 __reserved_3 : 15;
389 u32 __reserved_4[3];
390 } lvt_error;
391
392/*380*/ struct { /* Timer Initial Count Register */
393 u32 initial_count;
394 u32 __reserved_2[3];
395 } timer_icr;
396
397/*390*/ const
398 struct { /* Timer Current Count Register */
399 u32 curr_count;
400 u32 __reserved_2[3];
401 } timer_ccr;
402
403/*3A0*/ struct { u32 __reserved[4]; } __reserved_16;
404
405/*3B0*/ struct { u32 __reserved[4]; } __reserved_17;
406
407/*3C0*/ struct { u32 __reserved[4]; } __reserved_18;
408
409/*3D0*/ struct { u32 __reserved[4]; } __reserved_19;
410
411/*3E0*/ struct { /* Timer Divide Configuration Register */
412 u32 divisor : 4,
413 __reserved_1 : 28;
414 u32 __reserved_2[3];
415 } timer_dcr;
416
417/*3F0*/ struct { u32 __reserved[4]; } __reserved_20;
418
419} __attribute__ ((packed));
420
421#undef u32
422
423#ifdef CONFIG_X86_32
424 #define BAD_APICID 0xFFu
425#else
426 #define BAD_APICID 0xFFFFu
427#endif
428
429enum apic_delivery_modes {
430 APIC_DELIVERY_MODE_FIXED = 0,
431 APIC_DELIVERY_MODE_LOWESTPRIO = 1,
432 APIC_DELIVERY_MODE_SMI = 2,
433 APIC_DELIVERY_MODE_NMI = 4,
434 APIC_DELIVERY_MODE_INIT = 5,
435 APIC_DELIVERY_MODE_EXTINT = 7,
436};
437
438#endif /* _ASM_X86_APICDEF_H */
439

source code of linux/arch/x86/include/asm/apicdef.h