Commit | Line | Data |
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1da177e4 | 1 | /* |
835c34a1 | 2 | * IBM Summit-Specific Code |
1da177e4 LT |
3 | * |
4 | * Written By: Matthew Dobson, IBM Corporation | |
5 | * | |
6 | * Copyright (c) 2003 IBM Corp. | |
7 | * | |
8 | * All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or (at | |
13 | * your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
18 | * NON INFRINGEMENT. See the GNU General Public License for more | |
19 | * details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | * | |
25 | * Send feedback to <colpatch@us.ibm.com> | |
26 | * | |
27 | */ | |
28 | ||
29 | #include <linux/mm.h> | |
30 | #include <linux/init.h> | |
31 | #include <asm/io.h> | |
356fa0c6 | 32 | #include <asm/bios_ebda.h> |
b11b867f IM |
33 | |
34 | /* | |
35 | * APIC driver for the IBM "Summit" chipset. | |
36 | */ | |
b11b867f IM |
37 | #include <linux/threads.h> |
38 | #include <linux/cpumask.h> | |
39 | #include <asm/mpspec.h> | |
40 | #include <asm/apic.h> | |
41 | #include <asm/smp.h> | |
b11b867f IM |
42 | #include <asm/fixmap.h> |
43 | #include <asm/apicdef.h> | |
43f39890 | 44 | #include <asm/ipi.h> |
b11b867f IM |
45 | #include <linux/kernel.h> |
46 | #include <linux/string.h> | |
b11b867f IM |
47 | #include <linux/gfp.h> |
48 | #include <linux/smp.h> | |
49 | ||
b5f26d05 | 50 | static unsigned summit_get_apic_id(unsigned long x) |
b11b867f IM |
51 | { |
52 | return (x >> 24) & 0xFF; | |
53 | } | |
54 | ||
70ba2b6a | 55 | static inline void summit_send_IPI_mask(const struct cpumask *mask, int vector) |
b11b867f | 56 | { |
43f39890 | 57 | default_send_IPI_mask_sequence_logical(mask, vector); |
b11b867f IM |
58 | } |
59 | ||
b5f26d05 | 60 | static void summit_send_IPI_allbutself(int vector) |
b11b867f | 61 | { |
70ba2b6a | 62 | default_send_IPI_mask_allbutself_logical(cpu_online_mask, vector); |
b11b867f IM |
63 | } |
64 | ||
b5f26d05 | 65 | static void summit_send_IPI_all(int vector) |
b11b867f | 66 | { |
70ba2b6a | 67 | summit_send_IPI_mask(cpu_online_mask, vector); |
b11b867f IM |
68 | } |
69 | ||
70 | #include <asm/tsc.h> | |
71 | ||
72 | extern int use_cyclone; | |
73 | ||
74 | #ifdef CONFIG_X86_SUMMIT_NUMA | |
2fcb1f1f | 75 | static void setup_summit(void); |
b11b867f | 76 | #else |
2fcb1f1f | 77 | static inline void setup_summit(void) {} |
b11b867f IM |
78 | #endif |
79 | ||
b5f26d05 JS |
80 | static int summit_mps_oem_check(struct mpc_table *mpc, char *oem, |
81 | char *productid) | |
b11b867f IM |
82 | { |
83 | if (!strncmp(oem, "IBM ENSW", 8) && | |
84 | (!strncmp(productid, "VIGIL SMP", 9) | |
85 | || !strncmp(productid, "EXA", 3) | |
86 | || !strncmp(productid, "RUTHLESS SMP", 12))){ | |
87 | mark_tsc_unstable("Summit based system"); | |
88 | use_cyclone = 1; /*enable cyclone-timer*/ | |
89 | setup_summit(); | |
90 | return 1; | |
91 | } | |
92 | return 0; | |
93 | } | |
94 | ||
95 | /* Hook from generic ACPI tables.c */ | |
b5f26d05 | 96 | static int summit_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
b11b867f IM |
97 | { |
98 | if (!strncmp(oem_id, "IBM", 3) && | |
99 | (!strncmp(oem_table_id, "SERVIGIL", 8) | |
100 | || !strncmp(oem_table_id, "EXA", 3))){ | |
101 | mark_tsc_unstable("Summit based system"); | |
102 | use_cyclone = 1; /*enable cyclone-timer*/ | |
103 | setup_summit(); | |
104 | return 1; | |
105 | } | |
106 | return 0; | |
107 | } | |
108 | ||
109 | struct rio_table_hdr { | |
110 | unsigned char version; /* Version number of this data structure */ | |
111 | /* Version 3 adds chassis_num & WP_index */ | |
112 | unsigned char num_scal_dev; /* # of Scalability devices (Twisters for Vigil) */ | |
113 | unsigned char num_rio_dev; /* # of RIO I/O devices (Cyclones and Winnipegs) */ | |
114 | } __attribute__((packed)); | |
115 | ||
116 | struct scal_detail { | |
117 | unsigned char node_id; /* Scalability Node ID */ | |
118 | unsigned long CBAR; /* Address of 1MB register space */ | |
119 | unsigned char port0node; /* Node ID port connected to: 0xFF=None */ | |
120 | unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */ | |
121 | unsigned char port1node; /* Node ID port connected to: 0xFF = None */ | |
122 | unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */ | |
123 | unsigned char port2node; /* Node ID port connected to: 0xFF = None */ | |
124 | unsigned char port2port; /* Port num port connected to: 0,1,2, or 0xFF=None */ | |
125 | unsigned char chassis_num; /* 1 based Chassis number (1 = boot node) */ | |
126 | } __attribute__((packed)); | |
127 | ||
128 | struct rio_detail { | |
129 | unsigned char node_id; /* RIO Node ID */ | |
130 | unsigned long BBAR; /* Address of 1MB register space */ | |
131 | unsigned char type; /* Type of device */ | |
132 | unsigned char owner_id; /* For WPEG: Node ID of Cyclone that owns this WPEG*/ | |
133 | /* For CYC: Node ID of Twister that owns this CYC */ | |
134 | unsigned char port0node; /* Node ID port connected to: 0xFF=None */ | |
135 | unsigned char port0port; /* Port num port connected to: 0,1,2, or 0xFF=None */ | |
136 | unsigned char port1node; /* Node ID port connected to: 0xFF=None */ | |
137 | unsigned char port1port; /* Port num port connected to: 0,1,2, or 0xFF=None */ | |
138 | unsigned char first_slot; /* For WPEG: Lowest slot number below this WPEG */ | |
139 | /* For CYC: 0 */ | |
140 | unsigned char status; /* For WPEG: Bit 0 = 1 : the XAPIC is used */ | |
141 | /* = 0 : the XAPIC is not used, ie:*/ | |
142 | /* ints fwded to another XAPIC */ | |
143 | /* Bits1:7 Reserved */ | |
144 | /* For CYC: Bits0:7 Reserved */ | |
145 | unsigned char WP_index; /* For WPEG: WPEG instance index - lower ones have */ | |
146 | /* lower slot numbers/PCI bus numbers */ | |
147 | /* For CYC: No meaning */ | |
148 | unsigned char chassis_num; /* 1 based Chassis number */ | |
149 | /* For LookOut WPEGs this field indicates the */ | |
150 | /* Expansion Chassis #, enumerated from Boot */ | |
151 | /* Node WPEG external port, then Boot Node CYC */ | |
152 | /* external port, then Next Vigil chassis WPEG */ | |
153 | /* external port, etc. */ | |
154 | /* Shared Lookouts have only 1 chassis number (the */ | |
155 | /* first one assigned) */ | |
156 | } __attribute__((packed)); | |
157 | ||
158 | ||
159 | typedef enum { | |
160 | CompatTwister = 0, /* Compatibility Twister */ | |
161 | AltTwister = 1, /* Alternate Twister of internal 8-way */ | |
162 | CompatCyclone = 2, /* Compatibility Cyclone */ | |
163 | AltCyclone = 3, /* Alternate Cyclone of internal 8-way */ | |
164 | CompatWPEG = 4, /* Compatibility WPEG */ | |
165 | AltWPEG = 5, /* Second Planar WPEG */ | |
166 | LookOutAWPEG = 6, /* LookOut WPEG */ | |
167 | LookOutBWPEG = 7, /* LookOut WPEG */ | |
168 | } node_type; | |
169 | ||
170 | static inline int is_WPEG(struct rio_detail *rio){ | |
171 | return (rio->type == CompatWPEG || rio->type == AltWPEG || | |
172 | rio->type == LookOutAWPEG || rio->type == LookOutBWPEG); | |
173 | } | |
174 | ||
b11b867f IM |
175 | #define SUMMIT_APIC_DFR_VALUE (APIC_DFR_CLUSTER) |
176 | ||
73e907de | 177 | static const struct cpumask *summit_target_cpus(void) |
b11b867f IM |
178 | { |
179 | /* CPU_MASK_ALL (0xff) has undefined behaviour with | |
180 | * dest_LowestPrio mode logical clustered apic interrupt routing | |
181 | * Just start on cpu 0. IRQ balancing will spread load | |
182 | */ | |
4f062896 | 183 | return cpumask_of(0); |
b11b867f IM |
184 | } |
185 | ||
7abc0753 | 186 | static unsigned long summit_check_apicid_used(physid_mask_t *map, int apicid) |
b11b867f IM |
187 | { |
188 | return 0; | |
189 | } | |
190 | ||
191 | /* we don't use the phys_cpu_present_map to indicate apicid presence */ | |
b5f26d05 | 192 | static unsigned long summit_check_apicid_present(int bit) |
b11b867f IM |
193 | { |
194 | return 1; | |
195 | } | |
196 | ||
3b39d937 | 197 | static int summit_early_logical_apicid(int cpu) |
b11b867f | 198 | { |
b11b867f | 199 | int count = 0; |
3b39d937 | 200 | u8 my_id = early_per_cpu(x86_cpu_to_apicid, cpu); |
b9e0d1aa | 201 | u8 my_cluster = APIC_CLUSTER(my_id); |
b11b867f IM |
202 | #ifdef CONFIG_SMP |
203 | u8 lid; | |
204 | int i; | |
205 | ||
206 | /* Create logical APIC IDs by counting CPUs already in cluster. */ | |
207 | for (count = 0, i = nr_cpu_ids; --i >= 0; ) { | |
4c321ff8 | 208 | lid = early_per_cpu(x86_cpu_to_logical_apicid, i); |
b9e0d1aa | 209 | if (lid != BAD_APICID && APIC_CLUSTER(lid) == my_cluster) |
b11b867f IM |
210 | ++count; |
211 | } | |
212 | #endif | |
213 | /* We only have a 4 wide bitmap in cluster mode. If a deranged | |
214 | * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */ | |
215 | BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT); | |
3b39d937 TH |
216 | return my_cluster | (1UL << count); |
217 | } | |
218 | ||
219 | static void summit_init_apic_ldr(void) | |
220 | { | |
221 | int cpu = smp_processor_id(); | |
222 | unsigned long id = early_per_cpu(x86_cpu_to_logical_apicid, cpu); | |
223 | unsigned long val; | |
224 | ||
b11b867f IM |
225 | apic_write(APIC_DFR, SUMMIT_APIC_DFR_VALUE); |
226 | val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; | |
227 | val |= SET_APIC_LOGICAL_ID(id); | |
228 | apic_write(APIC_LDR, val); | |
229 | } | |
230 | ||
b5f26d05 | 231 | static int summit_apic_id_registered(void) |
b11b867f IM |
232 | { |
233 | return 1; | |
234 | } | |
235 | ||
b5f26d05 | 236 | static void summit_setup_apic_routing(void) |
b11b867f IM |
237 | { |
238 | printk("Enabling APIC mode: Summit. Using %d I/O APICs\n", | |
239 | nr_ioapics); | |
240 | } | |
241 | ||
b5f26d05 | 242 | static int summit_cpu_present_to_apicid(int mps_cpu) |
b11b867f IM |
243 | { |
244 | if (mps_cpu < nr_cpu_ids) | |
245 | return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); | |
246 | else | |
247 | return BAD_APICID; | |
248 | } | |
249 | ||
7abc0753 | 250 | static void summit_ioapic_phys_id_map(physid_mask_t *phys_id_map, physid_mask_t *retmap) |
b11b867f IM |
251 | { |
252 | /* For clustered we don't have a good way to do this yet - hack */ | |
7abc0753 | 253 | physids_promote(0x0FL, retmap); |
b11b867f IM |
254 | } |
255 | ||
7abc0753 | 256 | static void summit_apicid_to_cpu_present(int apicid, physid_mask_t *retmap) |
b11b867f | 257 | { |
7abc0753 | 258 | physid_set_mask_of_physid(0, retmap); |
b11b867f IM |
259 | } |
260 | ||
e11dadab | 261 | static int summit_check_phys_apicid_present(int physical_apicid) |
b11b867f IM |
262 | { |
263 | return 1; | |
264 | } | |
265 | ||
73e907de | 266 | static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask) |
b11b867f | 267 | { |
fae176d6 JS |
268 | unsigned int round = 0; |
269 | int cpu, apicid = 0; | |
b11b867f | 270 | |
b11b867f | 271 | /* |
10b614ea | 272 | * The cpus in the mask must all be on the apic cluster. |
b11b867f | 273 | */ |
fae176d6 | 274 | for_each_cpu(cpu, cpumask) { |
7632611f | 275 | int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu); |
b11b867f | 276 | |
fae176d6 JS |
277 | if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) { |
278 | printk("%s: Not a valid mask!\n", __func__); | |
279 | return BAD_APICID; | |
b11b867f | 280 | } |
fae176d6 JS |
281 | apicid |= new_apicid; |
282 | round++; | |
b11b867f IM |
283 | } |
284 | return apicid; | |
285 | } | |
286 | ||
b5f26d05 | 287 | static unsigned int summit_cpu_mask_to_apicid_and(const struct cpumask *inmask, |
b11b867f IM |
288 | const struct cpumask *andmask) |
289 | { | |
7632611f | 290 | int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0); |
b11b867f IM |
291 | cpumask_var_t cpumask; |
292 | ||
293 | if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC)) | |
294 | return apicid; | |
295 | ||
296 | cpumask_and(cpumask, inmask, andmask); | |
297 | cpumask_and(cpumask, cpumask, cpu_online_mask); | |
298 | apicid = summit_cpu_mask_to_apicid(cpumask); | |
299 | ||
300 | free_cpumask_var(cpumask); | |
301 | ||
302 | return apicid; | |
303 | } | |
304 | ||
305 | /* | |
306 | * cpuid returns the value latched in the HW at reset, not the APIC ID | |
307 | * register's value. For any box whose BIOS changes APIC IDs, like | |
308 | * clustered APIC systems, we must use hard_smp_processor_id. | |
309 | * | |
310 | * See Intel's IA-32 SW Dev's Manual Vol2 under CPUID. | |
311 | */ | |
b5f26d05 | 312 | static int summit_phys_pkg_id(int cpuid_apic, int index_msb) |
b11b867f IM |
313 | { |
314 | return hard_smp_processor_id() >> index_msb; | |
315 | } | |
316 | ||
317 | static int probe_summit(void) | |
318 | { | |
319 | /* probed later in mptable/ACPI hooks */ | |
320 | return 0; | |
321 | } | |
322 | ||
73e907de | 323 | static void summit_vector_allocation_domain(int cpu, struct cpumask *retmask) |
b11b867f IM |
324 | { |
325 | /* Careful. Some cpus do not strictly honor the set of cpus | |
326 | * specified in the interrupt destination when using lowest | |
327 | * priority interrupt delivery mode. | |
328 | * | |
329 | * In particular there was a hyperthreading cpu observed to | |
330 | * deliver interrupts to the wrong hyperthread when only one | |
331 | * hyperthread was specified in the interrupt desitination. | |
332 | */ | |
5c6cb5e2 RR |
333 | cpumask_clear(retmask); |
334 | cpumask_bits(retmask)[0] = APIC_ALL_CPUS; | |
b11b867f | 335 | } |
1da177e4 | 336 | |
7c20dcc5 | 337 | #ifdef CONFIG_X86_SUMMIT_NUMA |
2fcb1f1f JS |
338 | static struct rio_table_hdr *rio_table_hdr; |
339 | static struct scal_detail *scal_devs[MAX_NUMNODES]; | |
340 | static struct rio_detail *rio_devs[MAX_NUMNODES*4]; | |
1da177e4 | 341 | |
d49c4288 | 342 | #ifndef CONFIG_X86_NUMAQ |
2fcb1f1f | 343 | static int mp_bus_id_to_node[MAX_MP_BUSSES]; |
d49c4288 | 344 | #endif |
037cab07 | 345 | |
2fcb1f1f | 346 | static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus) |
1da177e4 LT |
347 | { |
348 | int twister = 0, node = 0; | |
349 | int i, bus, num_buses; | |
350 | ||
60e11746 PC |
351 | for (i = 0; i < rio_table_hdr->num_rio_dev; i++) { |
352 | if (rio_devs[i]->node_id == rio_devs[wpeg_num]->owner_id) { | |
1da177e4 LT |
353 | twister = rio_devs[i]->owner_id; |
354 | break; | |
355 | } | |
356 | } | |
60e11746 | 357 | if (i == rio_table_hdr->num_rio_dev) { |
77bf90ed | 358 | printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __func__); |
1da177e4 LT |
359 | return last_bus; |
360 | } | |
361 | ||
60e11746 PC |
362 | for (i = 0; i < rio_table_hdr->num_scal_dev; i++) { |
363 | if (scal_devs[i]->node_id == twister) { | |
1da177e4 LT |
364 | node = scal_devs[i]->node_id; |
365 | break; | |
366 | } | |
367 | } | |
60e11746 | 368 | if (i == rio_table_hdr->num_scal_dev) { |
77bf90ed | 369 | printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __func__); |
1da177e4 LT |
370 | return last_bus; |
371 | } | |
372 | ||
60e11746 | 373 | switch (rio_devs[wpeg_num]->type) { |
1da177e4 | 374 | case CompatWPEG: |
60e11746 PC |
375 | /* |
376 | * The Compatibility Winnipeg controls the 2 legacy buses, | |
1da177e4 LT |
377 | * the 66MHz PCI bus [2 slots] and the 2 "extra" buses in case |
378 | * a PCI-PCI bridge card is used in either slot: total 5 buses. | |
379 | */ | |
380 | num_buses = 5; | |
381 | break; | |
382 | case AltWPEG: | |
60e11746 PC |
383 | /* |
384 | * The Alternate Winnipeg controls the 2 133MHz buses [1 slot | |
1da177e4 LT |
385 | * each], their 2 "extra" buses, the 100MHz bus [2 slots] and |
386 | * the "extra" buses for each of those slots: total 7 buses. | |
387 | */ | |
388 | num_buses = 7; | |
389 | break; | |
390 | case LookOutAWPEG: | |
391 | case LookOutBWPEG: | |
60e11746 PC |
392 | /* |
393 | * A Lookout Winnipeg controls 3 100MHz buses [2 slots each] | |
1da177e4 LT |
394 | * & the "extra" buses for each of those slots: total 9 buses. |
395 | */ | |
396 | num_buses = 9; | |
397 | break; | |
398 | default: | |
77bf90ed | 399 | printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __func__); |
1da177e4 LT |
400 | return last_bus; |
401 | } | |
402 | ||
60e11746 | 403 | for (bus = last_bus; bus < last_bus + num_buses; bus++) |
1da177e4 LT |
404 | mp_bus_id_to_node[bus] = node; |
405 | return bus; | |
406 | } | |
407 | ||
2fcb1f1f | 408 | static int build_detail_arrays(void) |
1da177e4 LT |
409 | { |
410 | unsigned long ptr; | |
411 | int i, scal_detail_size, rio_detail_size; | |
412 | ||
60e11746 | 413 | if (rio_table_hdr->num_scal_dev > MAX_NUMNODES) { |
77bf90ed | 414 | printk(KERN_WARNING "%s: MAX_NUMNODES too low! Defined as %d, but system has %d nodes.\n", __func__, MAX_NUMNODES, rio_table_hdr->num_scal_dev); |
1da177e4 LT |
415 | return 0; |
416 | } | |
417 | ||
60e11746 | 418 | switch (rio_table_hdr->version) { |
1da177e4 | 419 | default: |
77bf90ed | 420 | printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __func__, rio_table_hdr->version); |
1da177e4 LT |
421 | return 0; |
422 | case 2: | |
423 | scal_detail_size = 11; | |
424 | rio_detail_size = 13; | |
425 | break; | |
426 | case 3: | |
427 | scal_detail_size = 12; | |
428 | rio_detail_size = 15; | |
429 | break; | |
430 | } | |
431 | ||
432 | ptr = (unsigned long)rio_table_hdr + 3; | |
60e11746 | 433 | for (i = 0; i < rio_table_hdr->num_scal_dev; i++, ptr += scal_detail_size) |
1da177e4 LT |
434 | scal_devs[i] = (struct scal_detail *)ptr; |
435 | ||
60e11746 | 436 | for (i = 0; i < rio_table_hdr->num_rio_dev; i++, ptr += rio_detail_size) |
1da177e4 LT |
437 | rio_devs[i] = (struct rio_detail *)ptr; |
438 | ||
439 | return 1; | |
440 | } | |
441 | ||
2fcb1f1f | 442 | void setup_summit(void) |
1da177e4 LT |
443 | { |
444 | unsigned long ptr; | |
445 | unsigned short offset; | |
446 | int i, next_wpeg, next_bus = 0; | |
447 | ||
448 | /* The pointer to the EBDA is stored in the word @ phys 0x40E(40:0E) */ | |
356fa0c6 AM |
449 | ptr = get_bios_ebda(); |
450 | ptr = (unsigned long)phys_to_virt(ptr); | |
1da177e4 LT |
451 | |
452 | rio_table_hdr = NULL; | |
453 | offset = 0x180; | |
60e11746 | 454 | while (offset) { |
1da177e4 | 455 | /* The block id is stored in the 2nd word */ |
60e11746 | 456 | if (*((unsigned short *)(ptr + offset + 2)) == 0x4752) { |
1da177e4 LT |
457 | /* set the pointer past the offset & block id */ |
458 | rio_table_hdr = (struct rio_table_hdr *)(ptr + offset + 4); | |
459 | break; | |
460 | } | |
461 | /* The next offset is stored in the 1st word. 0 means no more */ | |
462 | offset = *((unsigned short *)(ptr + offset)); | |
463 | } | |
60e11746 | 464 | if (!rio_table_hdr) { |
77bf90ed | 465 | printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __func__); |
1da177e4 LT |
466 | return; |
467 | } | |
468 | ||
469 | if (!build_detail_arrays()) | |
470 | return; | |
471 | ||
472 | /* The first Winnipeg we're looking for has an index of 0 */ | |
473 | next_wpeg = 0; | |
474 | do { | |
60e11746 PC |
475 | for (i = 0; i < rio_table_hdr->num_rio_dev; i++) { |
476 | if (is_WPEG(rio_devs[i]) && rio_devs[i]->WP_index == next_wpeg) { | |
1da177e4 LT |
477 | /* It's the Winnipeg we're looking for! */ |
478 | next_bus = setup_pci_node_map_for_wpeg(i, next_bus); | |
479 | next_wpeg++; | |
480 | break; | |
481 | } | |
482 | } | |
483 | /* | |
484 | * If we go through all Rio devices and don't find one with | |
485 | * the next index, it means we've found all the Winnipegs, | |
486 | * and thus all the PCI buses. | |
487 | */ | |
488 | if (i == rio_table_hdr->num_rio_dev) | |
489 | next_wpeg = 0; | |
490 | } while (next_wpeg != 0); | |
491 | } | |
7c20dcc5 | 492 | #endif |
b11b867f | 493 | |
1a8880a1 | 494 | static struct apic apic_summit = { |
b11b867f IM |
495 | |
496 | .name = "summit", | |
497 | .probe = probe_summit, | |
498 | .acpi_madt_oem_check = summit_acpi_madt_oem_check, | |
499 | .apic_id_registered = summit_apic_id_registered, | |
500 | ||
501 | .irq_delivery_mode = dest_LowestPrio, | |
502 | /* logical delivery broadcast to all CPUs: */ | |
503 | .irq_dest_mode = 1, | |
504 | ||
505 | .target_cpus = summit_target_cpus, | |
506 | .disable_esr = 1, | |
507 | .dest_logical = APIC_DEST_LOGICAL, | |
508 | .check_apicid_used = summit_check_apicid_used, | |
509 | .check_apicid_present = summit_check_apicid_present, | |
510 | ||
511 | .vector_allocation_domain = summit_vector_allocation_domain, | |
512 | .init_apic_ldr = summit_init_apic_ldr, | |
513 | ||
514 | .ioapic_phys_id_map = summit_ioapic_phys_id_map, | |
515 | .setup_apic_routing = summit_setup_apic_routing, | |
516 | .multi_timer_check = NULL, | |
b11b867f IM |
517 | .cpu_present_to_apicid = summit_cpu_present_to_apicid, |
518 | .apicid_to_cpu_present = summit_apicid_to_cpu_present, | |
519 | .setup_portio_remap = NULL, | |
520 | .check_phys_apicid_present = summit_check_phys_apicid_present, | |
521 | .enable_apic_mode = NULL, | |
522 | .phys_pkg_id = summit_phys_pkg_id, | |
523 | .mps_oem_check = summit_mps_oem_check, | |
524 | ||
525 | .get_apic_id = summit_get_apic_id, | |
526 | .set_apic_id = NULL, | |
527 | .apic_id_mask = 0xFF << 24, | |
528 | ||
529 | .cpu_mask_to_apicid = summit_cpu_mask_to_apicid, | |
530 | .cpu_mask_to_apicid_and = summit_cpu_mask_to_apicid_and, | |
531 | ||
532 | .send_IPI_mask = summit_send_IPI_mask, | |
533 | .send_IPI_mask_allbutself = NULL, | |
534 | .send_IPI_allbutself = summit_send_IPI_allbutself, | |
535 | .send_IPI_all = summit_send_IPI_all, | |
6b64ee02 | 536 | .send_IPI_self = default_send_IPI_self, |
b11b867f | 537 | |
b11b867f IM |
538 | .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW, |
539 | .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH, | |
540 | ||
541 | .wait_for_init_deassert = default_wait_for_init_deassert, | |
542 | ||
543 | .smp_callin_clear_local_apic = NULL, | |
b11b867f | 544 | .inquire_remote_apic = default_inquire_remote_apic, |
c1eeb2de YL |
545 | |
546 | .read = native_apic_mem_read, | |
547 | .write = native_apic_mem_write, | |
548 | .icr_read = native_apic_icr_read, | |
549 | .icr_write = native_apic_icr_write, | |
550 | .wait_icr_idle = native_apic_wait_icr_idle, | |
551 | .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, | |
acb8bc09 | 552 | |
3b39d937 | 553 | .x86_32_early_logical_apicid = summit_early_logical_apicid, |
b11b867f | 554 | }; |
107e0e0c SS |
555 | |
556 | apic_driver(apic_summit); |