1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _ASM_X86_APICDEF_H |
3 | #define _ASM_X86_APICDEF_H |
4 | |
5 | #include <linux/bits.h> |
6 | |
7 | /* |
8 | * Constants for various Intel APICs. (local APIC, IOAPIC, etc.) |
9 | * |
10 | * Alan Cox <Alan.Cox@linux.org>, 1995. |
11 | * Ingo Molnar <mingo@redhat.com>, 1999, 2000 |
12 | */ |
13 | |
14 | #define IO_APIC_DEFAULT_PHYS_BASE 0xfec00000 |
15 | #define APIC_DEFAULT_PHYS_BASE 0xfee00000 |
16 | |
17 | /* |
18 | * This is the IO-APIC register space as specified |
19 | * by Intel docs: |
20 | */ |
21 | #define IO_APIC_SLOT_SIZE 1024 |
22 | |
23 | #define APIC_ID 0x20 |
24 | |
25 | #define APIC_LVR 0x30 |
26 | #define APIC_LVR_MASK 0xFF00FF |
27 | #define APIC_LVR_DIRECTED_EOI (1 << 24) |
28 | #define GET_APIC_VERSION(x) ((x) & 0xFFu) |
29 | #define GET_APIC_MAXLVT(x) (((x) >> 16) & 0xFFu) |
30 | #ifdef CONFIG_X86_32 |
31 | # define APIC_INTEGRATED(x) ((x) & 0xF0u) |
32 | #else |
33 | # define APIC_INTEGRATED(x) (1) |
34 | #endif |
35 | #define APIC_XAPIC(x) ((x) >= 0x14) |
36 | #define APIC_EXT_SPACE(x) ((x) & 0x80000000) |
37 | #define APIC_TASKPRI 0x80 |
38 | #define APIC_TPRI_MASK 0xFFu |
39 | #define APIC_ARBPRI 0x90 |
40 | #define APIC_ARBPRI_MASK 0xFFu |
41 | #define APIC_PROCPRI 0xA0 |
42 | #define APIC_EOI 0xB0 |
43 | #define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */ |
44 | #define APIC_RRR 0xC0 |
45 | #define APIC_LDR 0xD0 |
46 | #define APIC_LDR_MASK (0xFFu << 24) |
47 | #define GET_APIC_LOGICAL_ID(x) (((x) >> 24) & 0xFFu) |
48 | #define SET_APIC_LOGICAL_ID(x) (((x) << 24)) |
49 | #define APIC_ALL_CPUS 0xFFu |
50 | #define APIC_DFR 0xE0 |
51 | #define APIC_DFR_CLUSTER 0x0FFFFFFFul |
52 | #define APIC_DFR_FLAT 0xFFFFFFFFul |
53 | #define APIC_SPIV 0xF0 |
54 | #define APIC_SPIV_DIRECTED_EOI (1 << 12) |
55 | #define APIC_SPIV_FOCUS_DISABLED (1 << 9) |
56 | #define APIC_SPIV_APIC_ENABLED (1 << 8) |
57 | #define APIC_ISR 0x100 |
58 | #define APIC_ISR_NR 0x8 /* Number of 32 bit ISR registers. */ |
59 | #define APIC_TMR 0x180 |
60 | #define APIC_IRR 0x200 |
61 | #define APIC_ESR 0x280 |
62 | #define APIC_ESR_SEND_CS 0x00001 |
63 | #define APIC_ESR_RECV_CS 0x00002 |
64 | #define APIC_ESR_SEND_ACC 0x00004 |
65 | #define APIC_ESR_RECV_ACC 0x00008 |
66 | #define APIC_ESR_SENDILL 0x00020 |
67 | #define APIC_ESR_RECVILL 0x00040 |
68 | #define APIC_ESR_ILLREGA 0x00080 |
69 | #define APIC_LVTCMCI 0x2f0 |
70 | #define APIC_ICR 0x300 |
71 | #define APIC_DEST_SELF 0x40000 |
72 | #define APIC_DEST_ALLINC 0x80000 |
73 | #define APIC_DEST_ALLBUT 0xC0000 |
74 | #define APIC_ICR_RR_MASK 0x30000 |
75 | #define APIC_ICR_RR_INVALID 0x00000 |
76 | #define APIC_ICR_RR_INPROG 0x10000 |
77 | #define APIC_ICR_RR_VALID 0x20000 |
78 | #define APIC_INT_LEVELTRIG 0x08000 |
79 | #define APIC_INT_ASSERT 0x04000 |
80 | #define APIC_ICR_BUSY 0x01000 |
81 | #define APIC_DEST_LOGICAL 0x00800 |
82 | #define APIC_DEST_PHYSICAL 0x00000 |
83 | #define APIC_DM_FIXED 0x00000 |
84 | #define APIC_DM_FIXED_MASK 0x00700 |
85 | #define APIC_DM_LOWEST 0x00100 |
86 | #define APIC_DM_SMI 0x00200 |
87 | #define APIC_DM_REMRD 0x00300 |
88 | #define APIC_DM_NMI 0x00400 |
89 | #define APIC_DM_INIT 0x00500 |
90 | #define APIC_DM_STARTUP 0x00600 |
91 | #define APIC_DM_EXTINT 0x00700 |
92 | #define APIC_VECTOR_MASK 0x000FF |
93 | #define APIC_ICR2 0x310 |
94 | #define GET_XAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF) |
95 | #define SET_XAPIC_DEST_FIELD(x) ((x) << 24) |
96 | #define APIC_LVTT 0x320 |
97 | #define APIC_LVTTHMR 0x330 |
98 | #define APIC_LVTPC 0x340 |
99 | #define APIC_LVT0 0x350 |
100 | #define APIC_LVT_TIMER_ONESHOT (0 << 17) |
101 | #define APIC_LVT_TIMER_PERIODIC (1 << 17) |
102 | #define APIC_LVT_TIMER_TSCDEADLINE (2 << 17) |
103 | #define APIC_LVT_MASKED (1 << 16) |
104 | #define APIC_LVT_LEVEL_TRIGGER (1 << 15) |
105 | #define APIC_LVT_REMOTE_IRR (1 << 14) |
106 | #define APIC_INPUT_POLARITY (1 << 13) |
107 | #define APIC_SEND_PENDING (1 << 12) |
108 | #define APIC_MODE_MASK 0x700 |
109 | #define GET_APIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7) |
110 | #define SET_APIC_DELIVERY_MODE(x, y) (((x) & ~0x700) | ((y) << 8)) |
111 | #define APIC_MODE_FIXED 0x0 |
112 | #define APIC_MODE_NMI 0x4 |
113 | #define APIC_MODE_EXTINT 0x7 |
114 | #define APIC_LVT1 0x360 |
115 | #define APIC_LVTERR 0x370 |
116 | #define APIC_TMICT 0x380 |
117 | #define APIC_TMCCT 0x390 |
118 | #define APIC_TDCR 0x3E0 |
119 | #define APIC_SELF_IPI 0x3F0 |
120 | #define APIC_TDR_DIV_TMBASE (1 << 2) |
121 | #define APIC_TDR_DIV_1 0xB |
122 | #define APIC_TDR_DIV_2 0x0 |
123 | #define APIC_TDR_DIV_4 0x1 |
124 | #define APIC_TDR_DIV_8 0x2 |
125 | #define APIC_TDR_DIV_16 0x3 |
126 | #define APIC_TDR_DIV_32 0x8 |
127 | #define APIC_TDR_DIV_64 0x9 |
128 | #define APIC_TDR_DIV_128 0xA |
129 | #define APIC_EFEAT 0x400 |
130 | #define APIC_ECTRL 0x410 |
131 | #define APIC_EILVTn(n) (0x500 + 0x10 * n) |
132 | #define APIC_EILVT_NR_AMD_K8 1 /* # of extended interrupts */ |
133 | #define APIC_EILVT_NR_AMD_10H 4 |
134 | #define APIC_EILVT_NR_MAX APIC_EILVT_NR_AMD_10H |
135 | #define APIC_EILVT_LVTOFF(x) (((x) >> 4) & 0xF) |
136 | #define APIC_EILVT_MSG_FIX 0x0 |
137 | #define APIC_EILVT_MSG_SMI 0x2 |
138 | #define APIC_EILVT_MSG_NMI 0x4 |
139 | #define APIC_EILVT_MSG_EXT 0x7 |
140 | #define APIC_EILVT_MASKED (1 << 16) |
141 | |
142 | #define APIC_BASE (fix_to_virt(FIX_APIC_BASE)) |
143 | #define APIC_BASE_MSR 0x800 |
144 | #define APIC_X2APIC_ID_MSR 0x802 |
145 | #define XAPIC_ENABLE BIT(11) |
146 | #define X2APIC_ENABLE BIT(10) |
147 | |
148 | #ifdef CONFIG_X86_32 |
149 | # define MAX_IO_APICS 64 |
150 | # define MAX_LOCAL_APIC 256 |
151 | #else |
152 | # define MAX_IO_APICS 128 |
153 | # define MAX_LOCAL_APIC 32768 |
154 | #endif |
155 | |
156 | /* |
157 | * All x86-64 systems are xAPIC compatible. |
158 | * In the following, "apicid" is a physical APIC ID. |
159 | */ |
160 | #define XAPIC_DEST_CPUS_SHIFT 4 |
161 | #define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1) |
162 | #define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT) |
163 | #define APIC_CLUSTER(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK) |
164 | #define APIC_CLUSTERID(apicid) (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT) |
165 | #define APIC_CPUID(apicid) ((apicid) & XAPIC_DEST_CPUS_MASK) |
166 | #define NUM_APIC_CLUSTERS ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT) |
167 | |
168 | #ifndef __ASSEMBLY__ |
169 | /* |
170 | * the local APIC register structure, memory mapped. Not terribly well |
171 | * tested, but we might eventually use this one in the future - the |
172 | * problem why we cannot use it right now is the P5 APIC, it has an |
173 | * errata which cannot take 8-bit reads and writes, only 32-bit ones ... |
174 | */ |
175 | #define u32 unsigned int |
176 | |
177 | struct local_apic { |
178 | |
179 | /*000*/ struct { u32 __reserved[4]; } __reserved_01; |
180 | |
181 | /*010*/ struct { u32 __reserved[4]; } __reserved_02; |
182 | |
183 | /*020*/ struct { /* APIC ID Register */ |
184 | u32 __reserved_1 : 24, |
185 | phys_apic_id : 4, |
186 | __reserved_2 : 4; |
187 | u32 __reserved[3]; |
188 | } id; |
189 | |
190 | /*030*/ const |
191 | struct { /* APIC Version Register */ |
192 | u32 version : 8, |
193 | __reserved_1 : 8, |
194 | max_lvt : 8, |
195 | __reserved_2 : 8; |
196 | u32 __reserved[3]; |
197 | } version; |
198 | |
199 | /*040*/ struct { u32 __reserved[4]; } __reserved_03; |
200 | |
201 | /*050*/ struct { u32 __reserved[4]; } __reserved_04; |
202 | |
203 | /*060*/ struct { u32 __reserved[4]; } __reserved_05; |
204 | |
205 | /*070*/ struct { u32 __reserved[4]; } __reserved_06; |
206 | |
207 | /*080*/ struct { /* Task Priority Register */ |
208 | u32 priority : 8, |
209 | __reserved_1 : 24; |
210 | u32 __reserved_2[3]; |
211 | } tpr; |
212 | |
213 | /*090*/ const |
214 | struct { /* Arbitration Priority Register */ |
215 | u32 priority : 8, |
216 | __reserved_1 : 24; |
217 | u32 __reserved_2[3]; |
218 | } apr; |
219 | |
220 | /*0A0*/ const |
221 | struct { /* Processor Priority Register */ |
222 | u32 priority : 8, |
223 | __reserved_1 : 24; |
224 | u32 __reserved_2[3]; |
225 | } ppr; |
226 | |
227 | /*0B0*/ struct { /* End Of Interrupt Register */ |
228 | u32 eoi; |
229 | u32 __reserved[3]; |
230 | } eoi; |
231 | |
232 | /*0C0*/ struct { u32 __reserved[4]; } __reserved_07; |
233 | |
234 | /*0D0*/ struct { /* Logical Destination Register */ |
235 | u32 __reserved_1 : 24, |
236 | logical_dest : 8; |
237 | u32 __reserved_2[3]; |
238 | } ldr; |
239 | |
240 | /*0E0*/ struct { /* Destination Format Register */ |
241 | u32 __reserved_1 : 28, |
242 | model : 4; |
243 | u32 __reserved_2[3]; |
244 | } dfr; |
245 | |
246 | /*0F0*/ struct { /* Spurious Interrupt Vector Register */ |
247 | u32 spurious_vector : 8, |
248 | apic_enabled : 1, |
249 | focus_cpu : 1, |
250 | __reserved_2 : 22; |
251 | u32 __reserved_3[3]; |
252 | } svr; |
253 | |
254 | /*100*/ struct { /* In Service Register */ |
255 | /*170*/ u32 bitfield; |
256 | u32 __reserved[3]; |
257 | } isr [8]; |
258 | |
259 | /*180*/ struct { /* Trigger Mode Register */ |
260 | /*1F0*/ u32 bitfield; |
261 | u32 __reserved[3]; |
262 | } tmr [8]; |
263 | |
264 | /*200*/ struct { /* Interrupt Request Register */ |
265 | /*270*/ u32 bitfield; |
266 | u32 __reserved[3]; |
267 | } irr [8]; |
268 | |
269 | /*280*/ union { /* Error Status Register */ |
270 | struct { |
271 | u32 send_cs_error : 1, |
272 | receive_cs_error : 1, |
273 | send_accept_error : 1, |
274 | receive_accept_error : 1, |
275 | __reserved_1 : 1, |
276 | send_illegal_vector : 1, |
277 | receive_illegal_vector : 1, |
278 | illegal_register_address : 1, |
279 | __reserved_2 : 24; |
280 | u32 __reserved_3[3]; |
281 | } error_bits; |
282 | struct { |
283 | u32 errors; |
284 | u32 __reserved_3[3]; |
285 | } all_errors; |
286 | } esr; |
287 | |
288 | /*290*/ struct { u32 __reserved[4]; } __reserved_08; |
289 | |
290 | /*2A0*/ struct { u32 __reserved[4]; } __reserved_09; |
291 | |
292 | /*2B0*/ struct { u32 __reserved[4]; } __reserved_10; |
293 | |
294 | /*2C0*/ struct { u32 __reserved[4]; } __reserved_11; |
295 | |
296 | /*2D0*/ struct { u32 __reserved[4]; } __reserved_12; |
297 | |
298 | /*2E0*/ struct { u32 __reserved[4]; } __reserved_13; |
299 | |
300 | /*2F0*/ struct { u32 __reserved[4]; } __reserved_14; |
301 | |
302 | /*300*/ struct { /* Interrupt Command Register 1 */ |
303 | u32 vector : 8, |
304 | delivery_mode : 3, |
305 | destination_mode : 1, |
306 | delivery_status : 1, |
307 | __reserved_1 : 1, |
308 | level : 1, |
309 | trigger : 1, |
310 | __reserved_2 : 2, |
311 | shorthand : 2, |
312 | __reserved_3 : 12; |
313 | u32 __reserved_4[3]; |
314 | } icr1; |
315 | |
316 | /*310*/ struct { /* Interrupt Command Register 2 */ |
317 | union { |
318 | u32 __reserved_1 : 24, |
319 | phys_dest : 4, |
320 | __reserved_2 : 4; |
321 | u32 __reserved_3 : 24, |
322 | logical_dest : 8; |
323 | } dest; |
324 | u32 __reserved_4[3]; |
325 | } icr2; |
326 | |
327 | /*320*/ struct { /* LVT - Timer */ |
328 | u32 vector : 8, |
329 | __reserved_1 : 4, |
330 | delivery_status : 1, |
331 | __reserved_2 : 3, |
332 | mask : 1, |
333 | timer_mode : 1, |
334 | __reserved_3 : 14; |
335 | u32 __reserved_4[3]; |
336 | } lvt_timer; |
337 | |
338 | /*330*/ struct { /* LVT - Thermal Sensor */ |
339 | u32 vector : 8, |
340 | delivery_mode : 3, |
341 | __reserved_1 : 1, |
342 | delivery_status : 1, |
343 | __reserved_2 : 3, |
344 | mask : 1, |
345 | __reserved_3 : 15; |
346 | u32 __reserved_4[3]; |
347 | } lvt_thermal; |
348 | |
349 | /*340*/ struct { /* LVT - Performance Counter */ |
350 | u32 vector : 8, |
351 | delivery_mode : 3, |
352 | __reserved_1 : 1, |
353 | delivery_status : 1, |
354 | __reserved_2 : 3, |
355 | mask : 1, |
356 | __reserved_3 : 15; |
357 | u32 __reserved_4[3]; |
358 | } lvt_pc; |
359 | |
360 | /*350*/ struct { /* LVT - LINT0 */ |
361 | u32 vector : 8, |
362 | delivery_mode : 3, |
363 | __reserved_1 : 1, |
364 | delivery_status : 1, |
365 | polarity : 1, |
366 | remote_irr : 1, |
367 | trigger : 1, |
368 | mask : 1, |
369 | __reserved_2 : 15; |
370 | u32 __reserved_3[3]; |
371 | } lvt_lint0; |
372 | |
373 | /*360*/ struct { /* LVT - LINT1 */ |
374 | u32 vector : 8, |
375 | delivery_mode : 3, |
376 | __reserved_1 : 1, |
377 | delivery_status : 1, |
378 | polarity : 1, |
379 | remote_irr : 1, |
380 | trigger : 1, |
381 | mask : 1, |
382 | __reserved_2 : 15; |
383 | u32 __reserved_3[3]; |
384 | } lvt_lint1; |
385 | |
386 | /*370*/ struct { /* LVT - Error */ |
387 | u32 vector : 8, |
388 | __reserved_1 : 4, |
389 | delivery_status : 1, |
390 | __reserved_2 : 3, |
391 | mask : 1, |
392 | __reserved_3 : 15; |
393 | u32 __reserved_4[3]; |
394 | } lvt_error; |
395 | |
396 | /*380*/ struct { /* Timer Initial Count Register */ |
397 | u32 initial_count; |
398 | u32 __reserved_2[3]; |
399 | } timer_icr; |
400 | |
401 | /*390*/ const |
402 | struct { /* Timer Current Count Register */ |
403 | u32 curr_count; |
404 | u32 __reserved_2[3]; |
405 | } timer_ccr; |
406 | |
407 | /*3A0*/ struct { u32 __reserved[4]; } __reserved_16; |
408 | |
409 | /*3B0*/ struct { u32 __reserved[4]; } __reserved_17; |
410 | |
411 | /*3C0*/ struct { u32 __reserved[4]; } __reserved_18; |
412 | |
413 | /*3D0*/ struct { u32 __reserved[4]; } __reserved_19; |
414 | |
415 | /*3E0*/ struct { /* Timer Divide Configuration Register */ |
416 | u32 divisor : 4, |
417 | __reserved_1 : 28; |
418 | u32 __reserved_2[3]; |
419 | } timer_dcr; |
420 | |
421 | /*3F0*/ struct { u32 __reserved[4]; } __reserved_20; |
422 | |
423 | } __attribute__ ((packed)); |
424 | |
425 | #undef u32 |
426 | |
427 | #ifdef CONFIG_X86_32 |
428 | #define BAD_APICID 0xFFu |
429 | #else |
430 | #define BAD_APICID 0xFFFFu |
431 | #endif |
432 | |
433 | enum apic_delivery_modes { |
434 | APIC_DELIVERY_MODE_FIXED = 0, |
435 | APIC_DELIVERY_MODE_LOWESTPRIO = 1, |
436 | APIC_DELIVERY_MODE_SMI = 2, |
437 | APIC_DELIVERY_MODE_NMI = 4, |
438 | APIC_DELIVERY_MODE_INIT = 5, |
439 | APIC_DELIVERY_MODE_EXTINT = 7, |
440 | }; |
441 | |
442 | #endif /* !__ASSEMBLY__ */ |
443 | #endif /* _ASM_X86_APICDEF_H */ |
444 | |