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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
2e34f07f | 6 | * Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All rights reserved. |
1da177e4 LT |
7 | */ |
8 | ||
9 | #include <linux/config.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/delay.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/kdev_t.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/tty.h> | |
17 | #include <linux/console.h> | |
18 | #include <linux/timex.h> | |
19 | #include <linux/sched.h> | |
20 | #include <linux/ioport.h> | |
21 | #include <linux/mm.h> | |
22 | #include <linux/serial.h> | |
23 | #include <linux/irq.h> | |
24 | #include <linux/bootmem.h> | |
25 | #include <linux/mmzone.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/acpi.h> | |
28 | #include <linux/compiler.h> | |
29 | #include <linux/sched.h> | |
30 | #include <linux/root_dev.h> | |
31 | #include <linux/nodemask.h> | |
c1298c5c | 32 | #include <linux/pm.h> |
1da177e4 LT |
33 | |
34 | #include <asm/io.h> | |
35 | #include <asm/sal.h> | |
36 | #include <asm/machvec.h> | |
37 | #include <asm/system.h> | |
38 | #include <asm/processor.h> | |
a9f9de73 | 39 | #include <asm/vga.h> |
1da177e4 LT |
40 | #include <asm/sn/arch.h> |
41 | #include <asm/sn/addrs.h> | |
42 | #include <asm/sn/pda.h> | |
43 | #include <asm/sn/nodepda.h> | |
44 | #include <asm/sn/sn_cpuid.h> | |
45 | #include <asm/sn/simulator.h> | |
46 | #include <asm/sn/leds.h> | |
47 | #include <asm/sn/bte.h> | |
48 | #include <asm/sn/shub_mmr.h> | |
49 | #include <asm/sn/clksupport.h> | |
50 | #include <asm/sn/sn_sal.h> | |
51 | #include <asm/sn/geo.h> | |
52 | #include "xtalk/xwidgetdev.h" | |
53 | #include "xtalk/hubdev.h" | |
54 | #include <asm/sn/klconfig.h> | |
55 | ||
56 | ||
57 | DEFINE_PER_CPU(struct pda_s, pda_percpu); | |
58 | ||
59 | #define MAX_PHYS_MEMORY (1UL << 49) /* 1 TB */ | |
60 | ||
61 | lboard_t *root_lboard[MAX_COMPACT_NODES]; | |
62 | ||
63 | extern void bte_init_node(nodepda_t *, cnodeid_t); | |
64 | ||
65 | extern void sn_timer_init(void); | |
66 | extern unsigned long last_time_offset; | |
67 | extern void (*ia64_mark_idle) (int); | |
68 | extern void snidle(int); | |
69 | extern unsigned char acpi_kbd_controller_present; | |
70 | ||
71 | unsigned long sn_rtc_cycles_per_second; | |
72 | EXPORT_SYMBOL(sn_rtc_cycles_per_second); | |
73 | ||
74 | DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info); | |
75 | EXPORT_PER_CPU_SYMBOL(__sn_hub_info); | |
76 | ||
2e34f07f DN |
77 | DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]); |
78 | EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid); | |
79 | ||
9b48b466 DN |
80 | DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda); |
81 | EXPORT_PER_CPU_SYMBOL(__sn_nodepda); | |
82 | ||
1da177e4 LT |
83 | partid_t sn_partid = -1; |
84 | EXPORT_SYMBOL(sn_partid); | |
85 | char sn_system_serial_number_string[128]; | |
86 | EXPORT_SYMBOL(sn_system_serial_number_string); | |
87 | u64 sn_partition_serial_number; | |
88 | EXPORT_SYMBOL(sn_partition_serial_number); | |
89 | u8 sn_partition_id; | |
90 | EXPORT_SYMBOL(sn_partition_id); | |
91 | u8 sn_system_size; | |
92 | EXPORT_SYMBOL(sn_system_size); | |
93 | u8 sn_sharing_domain_size; | |
94 | EXPORT_SYMBOL(sn_sharing_domain_size); | |
95 | u8 sn_coherency_id; | |
96 | EXPORT_SYMBOL(sn_coherency_id); | |
97 | u8 sn_region_size; | |
98 | EXPORT_SYMBOL(sn_region_size); | |
71a5d027 | 99 | int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */ |
1da177e4 LT |
100 | |
101 | short physical_node_map[MAX_PHYSNODE_ID]; | |
102 | ||
103 | EXPORT_SYMBOL(physical_node_map); | |
104 | ||
105 | int numionodes; | |
106 | ||
107 | static void sn_init_pdas(char **); | |
108 | static void scan_for_ionodes(void); | |
109 | ||
110 | static nodepda_t *nodepdaindr[MAX_COMPACT_NODES]; | |
111 | ||
112 | /* | |
113 | * The format of "screen_info" is strange, and due to early i386-setup | |
114 | * code. This is just enough to make the console code think we're on a | |
115 | * VGA color display. | |
116 | */ | |
117 | struct screen_info sn_screen_info = { | |
118 | .orig_x = 0, | |
119 | .orig_y = 0, | |
120 | .orig_video_mode = 3, | |
121 | .orig_video_cols = 80, | |
122 | .orig_video_ega_bx = 3, | |
123 | .orig_video_lines = 25, | |
124 | .orig_video_isVGA = 1, | |
125 | .orig_video_points = 16 | |
126 | }; | |
127 | ||
128 | /* | |
129 | * This is here so we can use the CMOS detection in ide-probe.c to | |
130 | * determine what drives are present. In theory, we don't need this | |
131 | * as the auto-detection could be done via ide-probe.c:do_probe() but | |
132 | * in practice that would be much slower, which is painful when | |
133 | * running in the simulator. Note that passing zeroes in DRIVE_INFO | |
134 | * is sufficient (the IDE driver will autodetect the drive geometry). | |
135 | */ | |
136 | #ifdef CONFIG_IA64_GENERIC | |
137 | extern char drive_info[4 * 16]; | |
138 | #else | |
139 | char drive_info[4 * 16]; | |
140 | #endif | |
141 | ||
142 | /* | |
143 | * Get nasid of current cpu early in boot before nodepda is initialized | |
144 | */ | |
145 | static int | |
146 | boot_get_nasid(void) | |
147 | { | |
148 | int nasid; | |
149 | ||
150 | if (ia64_sn_get_sapic_info(get_sapicid(), &nasid, NULL, NULL)) | |
151 | BUG(); | |
152 | return nasid; | |
153 | } | |
154 | ||
155 | /* | |
156 | * This routine can only be used during init, since | |
157 | * smp_boot_data is an init data structure. | |
158 | * We have to use smp_boot_data.cpu_phys_id to find | |
159 | * the physical id of the processor because the normal | |
160 | * cpu_physical_id() relies on data structures that | |
161 | * may not be initialized yet. | |
162 | */ | |
163 | ||
164 | static int __init pxm_to_nasid(int pxm) | |
165 | { | |
166 | int i; | |
167 | int nid; | |
168 | ||
169 | nid = pxm_to_nid_map[pxm]; | |
170 | for (i = 0; i < num_node_memblks; i++) { | |
171 | if (node_memblk[i].nid == nid) { | |
172 | return NASID_GET(node_memblk[i].start_paddr); | |
173 | } | |
174 | } | |
175 | return -1; | |
176 | } | |
177 | ||
178 | /** | |
179 | * early_sn_setup - early setup routine for SN platforms | |
180 | * | |
181 | * Sets up an initial console to aid debugging. Intended primarily | |
182 | * for bringup. See start_kernel() in init/main.c. | |
183 | */ | |
184 | ||
185 | void __init early_sn_setup(void) | |
186 | { | |
187 | efi_system_table_t *efi_systab; | |
188 | efi_config_table_t *config_tables; | |
189 | struct ia64_sal_systab *sal_systab; | |
190 | struct ia64_sal_desc_entry_point *ep; | |
191 | char *p; | |
192 | int i, j; | |
193 | ||
194 | /* | |
195 | * Parse enough of the SAL tables to locate the SAL entry point. Since, console | |
196 | * IO on SN2 is done via SAL calls, early_printk won't work without this. | |
197 | * | |
198 | * This code duplicates some of the ACPI table parsing that is in efi.c & sal.c. | |
199 | * Any changes to those file may have to be made hereas well. | |
200 | */ | |
201 | efi_systab = (efi_system_table_t *) __va(ia64_boot_param->efi_systab); | |
202 | config_tables = __va(efi_systab->tables); | |
203 | for (i = 0; i < efi_systab->nr_tables; i++) { | |
204 | if (efi_guidcmp(config_tables[i].guid, SAL_SYSTEM_TABLE_GUID) == | |
205 | 0) { | |
206 | sal_systab = __va(config_tables[i].table); | |
207 | p = (char *)(sal_systab + 1); | |
208 | for (j = 0; j < sal_systab->entry_count; j++) { | |
209 | if (*p == SAL_DESC_ENTRY_POINT) { | |
210 | ep = (struct ia64_sal_desc_entry_point | |
211 | *)p; | |
212 | ia64_sal_handler_init(__va | |
213 | (ep->sal_proc), | |
214 | __va(ep->gp)); | |
215 | return; | |
216 | } | |
217 | p += SAL_DESC_SIZE(*p); | |
218 | } | |
219 | } | |
220 | } | |
221 | /* Uh-oh, SAL not available?? */ | |
222 | printk(KERN_ERR "failed to find SAL entry point\n"); | |
223 | } | |
224 | ||
225 | extern int platform_intr_list[]; | |
226 | extern nasid_t master_nasid; | |
ff89bf3b | 227 | static int __initdata shub_1_1_found = 0; |
1da177e4 LT |
228 | |
229 | /* | |
230 | * sn_check_for_wars | |
231 | * | |
232 | * Set flag for enabling shub specific wars | |
233 | */ | |
234 | ||
235 | static inline int __init is_shub_1_1(int nasid) | |
236 | { | |
237 | unsigned long id; | |
238 | int rev; | |
239 | ||
240 | if (is_shub2()) | |
241 | return 0; | |
242 | id = REMOTE_HUB_L(nasid, SH1_SHUB_ID); | |
243 | rev = (id & SH1_SHUB_ID_REVISION_MASK) >> SH1_SHUB_ID_REVISION_SHFT; | |
244 | return rev <= 2; | |
245 | } | |
246 | ||
247 | static void __init sn_check_for_wars(void) | |
248 | { | |
249 | int cnode; | |
250 | ||
251 | if (is_shub2()) { | |
252 | /* none yet */ | |
253 | } else { | |
254 | for_each_online_node(cnode) { | |
255 | if (is_shub_1_1(cnodeid_to_nasid(cnode))) | |
ff89bf3b | 256 | shub_1_1_found = 1; |
1da177e4 LT |
257 | } |
258 | } | |
259 | } | |
260 | ||
261 | /** | |
262 | * sn_setup - SN platform setup routine | |
263 | * @cmdline_p: kernel command line | |
264 | * | |
265 | * Handles platform setup for SN machines. This includes determining | |
266 | * the RTC frequency (via a SAL call), initializing secondary CPUs, and | |
267 | * setting up per-node data areas. The console is also initialized here. | |
268 | */ | |
269 | void __init sn_setup(char **cmdline_p) | |
270 | { | |
271 | long status, ticks_per_sec, drift; | |
272 | int pxm; | |
283c7f6a | 273 | u32 version = sn_sal_rev(); |
1da177e4 LT |
274 | extern void sn_cpu_init(void); |
275 | ||
6872ec54 RA |
276 | ia64_sn_plat_set_error_handling_features(); |
277 | ||
a9f9de73 | 278 | #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) |
1da177e4 | 279 | /* |
a9f9de73 MM |
280 | * If there was a primary vga adapter identified through the |
281 | * EFI PCDP table, make it the preferred console. Otherwise | |
282 | * zero out conswitchp. | |
1da177e4 | 283 | */ |
a9f9de73 MM |
284 | |
285 | if (vga_console_membase) { | |
286 | /* usable vga ... make tty0 the preferred default console */ | |
287 | add_preferred_console("tty", 0, NULL); | |
288 | } else { | |
1da177e4 LT |
289 | printk(KERN_DEBUG "SGI: Disabling VGA console\n"); |
290 | #ifdef CONFIG_DUMMY_CONSOLE | |
291 | conswitchp = &dummy_con; | |
292 | #else | |
293 | conswitchp = NULL; | |
294 | #endif /* CONFIG_DUMMY_CONSOLE */ | |
295 | } | |
296 | #endif /* def(CONFIG_VT) && def(CONFIG_VGA_CONSOLE) */ | |
297 | ||
298 | MAX_DMA_ADDRESS = PAGE_OFFSET + MAX_PHYS_MEMORY; | |
299 | ||
300 | memset(physical_node_map, -1, sizeof(physical_node_map)); | |
301 | for (pxm = 0; pxm < MAX_PXM_DOMAINS; pxm++) | |
302 | if (pxm_to_nid_map[pxm] != -1) | |
303 | physical_node_map[pxm_to_nasid(pxm)] = | |
304 | pxm_to_nid_map[pxm]; | |
305 | ||
306 | /* | |
307 | * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard | |
308 | * support here so we don't have to listen to failed keyboard probe | |
309 | * messages. | |
310 | */ | |
283c7f6a | 311 | if (version <= 0x0209 && acpi_kbd_controller_present) { |
1da177e4 LT |
312 | printk(KERN_INFO "Disabling legacy keyboard support as prom " |
313 | "is too old and doesn't provide FADT\n"); | |
314 | acpi_kbd_controller_present = 0; | |
315 | } | |
316 | ||
283c7f6a | 317 | printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF); |
1da177e4 LT |
318 | |
319 | /* | |
320 | * Confirm the SAL we're running on is recent enough... | |
321 | */ | |
283c7f6a | 322 | if (version < SN_SAL_MIN_VERSION) { |
1da177e4 | 323 | printk(KERN_ERR "This kernel needs SGI SAL version >= " |
283c7f6a PB |
324 | "%x.%02x\n", SN_SAL_MIN_VERSION >> 8, |
325 | SN_SAL_MIN_VERSION & 0x00FF); | |
1da177e4 LT |
326 | panic("PROM version too old\n"); |
327 | } | |
328 | ||
329 | master_nasid = boot_get_nasid(); | |
330 | ||
331 | status = | |
332 | ia64_sal_freq_base(SAL_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec, | |
333 | &drift); | |
334 | if (status != 0 || ticks_per_sec < 100000) { | |
335 | printk(KERN_WARNING | |
336 | "unable to determine platform RTC clock frequency, guessing.\n"); | |
337 | /* PROM gives wrong value for clock freq. so guess */ | |
338 | sn_rtc_cycles_per_second = 1000000000000UL / 30000UL; | |
339 | } else | |
340 | sn_rtc_cycles_per_second = ticks_per_sec; | |
341 | ||
342 | platform_intr_list[ACPI_INTERRUPT_CPEI] = IA64_CPE_VECTOR; | |
343 | ||
344 | /* | |
345 | * we set the default root device to /dev/hda | |
346 | * to make simulation easy | |
347 | */ | |
348 | ROOT_DEV = Root_HDA1; | |
349 | ||
350 | /* | |
351 | * Create the PDAs and NODEPDAs for all the cpus. | |
352 | */ | |
353 | sn_init_pdas(cmdline_p); | |
354 | ||
355 | ia64_mark_idle = &snidle; | |
356 | ||
71a5d027 | 357 | /* |
1da177e4 LT |
358 | * For the bootcpu, we do this here. All other cpus will make the |
359 | * call as part of cpu_init in slave cpu initialization. | |
360 | */ | |
361 | sn_cpu_init(); | |
362 | ||
363 | #ifdef CONFIG_SMP | |
364 | init_smp_config(); | |
365 | #endif | |
366 | screen_info = sn_screen_info; | |
367 | ||
368 | sn_timer_init(); | |
c1298c5c AY |
369 | |
370 | /* | |
371 | * set pm_power_off to a SAL call to allow | |
372 | * sn machines to power off. The SAL call can be replaced | |
373 | * by an ACPI interface call when ACPI is fully implemented | |
374 | * for sn. | |
375 | */ | |
376 | pm_power_off = ia64_sn_power_down; | |
1da177e4 LT |
377 | } |
378 | ||
379 | /** | |
380 | * sn_init_pdas - setup node data areas | |
381 | * | |
382 | * One time setup for Node Data Area. Called by sn_setup(). | |
383 | */ | |
384 | static void __init sn_init_pdas(char **cmdline_p) | |
385 | { | |
386 | cnodeid_t cnode; | |
387 | ||
2e34f07f DN |
388 | memset(sn_cnodeid_to_nasid, -1, |
389 | sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid))); | |
1da177e4 | 390 | for_each_online_node(cnode) |
2e34f07f DN |
391 | sn_cnodeid_to_nasid[cnode] = |
392 | pxm_to_nasid(nid_to_pxm_map[cnode]); | |
1da177e4 LT |
393 | |
394 | numionodes = num_online_nodes(); | |
395 | scan_for_ionodes(); | |
396 | ||
397 | /* | |
398 | * Allocate & initalize the nodepda for each node. | |
399 | */ | |
400 | for_each_online_node(cnode) { | |
401 | nodepdaindr[cnode] = | |
402 | alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t)); | |
403 | memset(nodepdaindr[cnode], 0, sizeof(nodepda_t)); | |
71a5d027 | 404 | memset(nodepdaindr[cnode]->phys_cpuid, -1, |
1da177e4 LT |
405 | sizeof(nodepdaindr[cnode]->phys_cpuid)); |
406 | } | |
407 | ||
408 | /* | |
409 | * Allocate & initialize nodepda for TIOs. For now, put them on node 0. | |
410 | */ | |
411 | for (cnode = num_online_nodes(); cnode < numionodes; cnode++) { | |
412 | nodepdaindr[cnode] = | |
413 | alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t)); | |
414 | memset(nodepdaindr[cnode], 0, sizeof(nodepda_t)); | |
415 | } | |
416 | ||
417 | /* | |
418 | * Now copy the array of nodepda pointers to each nodepda. | |
419 | */ | |
420 | for (cnode = 0; cnode < numionodes; cnode++) | |
421 | memcpy(nodepdaindr[cnode]->pernode_pdaindr, nodepdaindr, | |
422 | sizeof(nodepdaindr)); | |
423 | ||
424 | /* | |
425 | * Set up IO related platform-dependent nodepda fields. | |
426 | * The following routine actually sets up the hubinfo struct | |
427 | * in nodepda. | |
428 | */ | |
429 | for_each_online_node(cnode) { | |
430 | bte_init_node(nodepdaindr[cnode], cnode); | |
431 | } | |
432 | ||
433 | /* | |
71a5d027 | 434 | * Initialize the per node hubdev. This includes IO Nodes and |
1da177e4 LT |
435 | * headless/memless nodes. |
436 | */ | |
437 | for (cnode = 0; cnode < numionodes; cnode++) { | |
438 | hubdev_init_node(nodepdaindr[cnode], cnode); | |
439 | } | |
440 | } | |
441 | ||
442 | /** | |
443 | * sn_cpu_init - initialize per-cpu data areas | |
444 | * @cpuid: cpuid of the caller | |
445 | * | |
446 | * Called during cpu initialization on each cpu as it starts. | |
447 | * Currently, initializes the per-cpu data area for SNIA. | |
448 | * Also sets up a few fields in the nodepda. Also known as | |
449 | * platform_cpu_init() by the ia64 machvec code. | |
450 | */ | |
451 | void __init sn_cpu_init(void) | |
452 | { | |
453 | int cpuid; | |
454 | int cpuphyid; | |
455 | int nasid; | |
456 | int subnode; | |
457 | int slice; | |
458 | int cnode; | |
459 | int i; | |
460 | static int wars_have_been_checked; | |
461 | ||
71a5d027 JS |
462 | if (smp_processor_id() == 0 && IS_MEDUSA()) { |
463 | if (ia64_sn_is_fake_prom()) | |
464 | sn_prom_type = 2; | |
465 | else | |
466 | sn_prom_type = 1; | |
467 | printk("Running on medusa with %s PROM\n", (sn_prom_type == 1) ? "real" : "fake"); | |
468 | } | |
469 | ||
1da177e4 LT |
470 | memset(pda, 0, sizeof(pda)); |
471 | if (ia64_sn_get_sn_info(0, &sn_hub_info->shub2, &sn_hub_info->nasid_bitmask, &sn_hub_info->nasid_shift, | |
472 | &sn_system_size, &sn_sharing_domain_size, &sn_partition_id, | |
473 | &sn_coherency_id, &sn_region_size)) | |
474 | BUG(); | |
475 | sn_hub_info->as_shift = sn_hub_info->nasid_shift - 2; | |
476 | ||
477 | /* | |
478 | * The boot cpu makes this call again after platform initialization is | |
479 | * complete. | |
480 | */ | |
481 | if (nodepdaindr[0] == NULL) | |
482 | return; | |
483 | ||
484 | cpuid = smp_processor_id(); | |
485 | cpuphyid = get_sapicid(); | |
486 | ||
487 | if (ia64_sn_get_sapic_info(cpuphyid, &nasid, &subnode, &slice)) | |
488 | BUG(); | |
489 | ||
490 | for (i=0; i < MAX_NUMNODES; i++) { | |
491 | if (nodepdaindr[i]) { | |
492 | nodepdaindr[i]->phys_cpuid[cpuid].nasid = nasid; | |
493 | nodepdaindr[i]->phys_cpuid[cpuid].slice = slice; | |
494 | nodepdaindr[i]->phys_cpuid[cpuid].subnode = subnode; | |
495 | } | |
496 | } | |
497 | ||
498 | cnode = nasid_to_cnodeid(nasid); | |
499 | ||
9b48b466 DN |
500 | sn_nodepda = nodepdaindr[cnode]; |
501 | ||
1da177e4 LT |
502 | pda->led_address = |
503 | (typeof(pda->led_address)) (LED0 + (slice << LED_CPU_SHIFT)); | |
504 | pda->led_state = LED_ALWAYS_SET; | |
505 | pda->hb_count = HZ / 2; | |
506 | pda->hb_state = 0; | |
507 | pda->idle_flag = 0; | |
508 | ||
509 | if (cpuid != 0) { | |
2e34f07f DN |
510 | /* copy cpu 0's sn_cnodeid_to_nasid table to this cpu's */ |
511 | memcpy(sn_cnodeid_to_nasid, | |
512 | (&per_cpu(__sn_cnodeid_to_nasid, 0)), | |
513 | sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid))); | |
1da177e4 LT |
514 | } |
515 | ||
516 | /* | |
517 | * Check for WARs. | |
518 | * Only needs to be done once, on BSP. | |
2e34f07f DN |
519 | * Has to be done after loop above, because it uses this cpu's |
520 | * sn_cnodeid_to_nasid table which was just initialized if this | |
521 | * isn't cpu 0. | |
1da177e4 LT |
522 | * Has to be done before assignment below. |
523 | */ | |
524 | if (!wars_have_been_checked) { | |
525 | sn_check_for_wars(); | |
526 | wars_have_been_checked = 1; | |
527 | } | |
528 | sn_hub_info->shub_1_1_found = shub_1_1_found; | |
529 | ||
530 | /* | |
531 | * Set up addresses of PIO/MEM write status registers. | |
532 | */ | |
533 | { | |
534 | u64 pio1[] = {SH1_PIO_WRITE_STATUS_0, 0, SH1_PIO_WRITE_STATUS_1, 0}; | |
71a5d027 | 535 | u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_1, |
1da177e4 LT |
536 | SH2_PIO_WRITE_STATUS_2, SH2_PIO_WRITE_STATUS_3}; |
537 | u64 *pio; | |
538 | pio = is_shub1() ? pio1 : pio2; | |
539 | pda->pio_write_status_addr = (volatile unsigned long *) LOCAL_MMR_ADDR(pio[slice]); | |
540 | pda->pio_write_status_val = is_shub1() ? SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK : 0; | |
541 | } | |
542 | ||
543 | /* | |
544 | * WAR addresses for SHUB 1.x. | |
545 | */ | |
546 | if (local_node_data->active_cpu_count++ == 0 && is_shub1()) { | |
547 | int buddy_nasid; | |
548 | buddy_nasid = | |
549 | cnodeid_to_nasid(numa_node_id() == | |
550 | num_online_nodes() - 1 ? 0 : numa_node_id() + 1); | |
551 | pda->pio_shub_war_cam_addr = | |
552 | (volatile unsigned long *)GLOBAL_MMR_ADDR(nasid, | |
553 | SH1_PI_CAM_CONTROL); | |
554 | } | |
555 | } | |
556 | ||
557 | /* | |
558 | * Scan klconfig for ionodes. Add the nasids to the | |
559 | * physical_node_map and the pda and increment numionodes. | |
560 | */ | |
561 | ||
562 | static void __init scan_for_ionodes(void) | |
563 | { | |
564 | int nasid = 0; | |
565 | lboard_t *brd; | |
566 | ||
71a5d027 JS |
567 | /* fakeprom does not support klgraph */ |
568 | if (IS_RUNNING_ON_FAKE_PROM()) | |
569 | return; | |
570 | ||
1da177e4 LT |
571 | /* Setup ionodes with memory */ |
572 | for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) { | |
573 | char *klgraph_header; | |
574 | cnodeid_t cnodeid; | |
575 | ||
576 | if (physical_node_map[nasid] == -1) | |
577 | continue; | |
578 | ||
579 | cnodeid = -1; | |
580 | klgraph_header = __va(ia64_sn_get_klconfig_addr(nasid)); | |
581 | if (!klgraph_header) { | |
1da177e4 LT |
582 | BUG(); /* All nodes must have klconfig tables! */ |
583 | } | |
584 | cnodeid = nasid_to_cnodeid(nasid); | |
585 | root_lboard[cnodeid] = (lboard_t *) | |
586 | NODE_OFFSET_TO_LBOARD((nasid), | |
587 | ((kl_config_hdr_t | |
588 | *) (klgraph_header))-> | |
589 | ch_board_info); | |
590 | } | |
591 | ||
592 | /* Scan headless/memless IO Nodes. */ | |
593 | for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) { | |
594 | /* if there's no nasid, don't try to read the klconfig on the node */ | |
595 | if (physical_node_map[nasid] == -1) | |
596 | continue; | |
597 | brd = find_lboard_any((lboard_t *) | |
598 | root_lboard[nasid_to_cnodeid(nasid)], | |
599 | KLTYPE_SNIA); | |
600 | if (brd) { | |
601 | brd = KLCF_NEXT_ANY(brd); /* Skip this node's lboard */ | |
602 | if (!brd) | |
603 | continue; | |
604 | } | |
605 | ||
606 | brd = find_lboard_any(brd, KLTYPE_SNIA); | |
607 | ||
608 | while (brd) { | |
2e34f07f | 609 | sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid; |
1da177e4 LT |
610 | physical_node_map[brd->brd_nasid] = numionodes; |
611 | root_lboard[numionodes] = brd; | |
612 | numionodes++; | |
613 | brd = KLCF_NEXT_ANY(brd); | |
614 | if (!brd) | |
615 | break; | |
616 | ||
617 | brd = find_lboard_any(brd, KLTYPE_SNIA); | |
618 | } | |
619 | } | |
620 | ||
621 | /* Scan for TIO nodes. */ | |
622 | for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) { | |
623 | /* if there's no nasid, don't try to read the klconfig on the node */ | |
624 | if (physical_node_map[nasid] == -1) | |
625 | continue; | |
626 | brd = find_lboard_any((lboard_t *) | |
627 | root_lboard[nasid_to_cnodeid(nasid)], | |
628 | KLTYPE_TIO); | |
629 | while (brd) { | |
2e34f07f | 630 | sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid; |
1da177e4 LT |
631 | physical_node_map[brd->brd_nasid] = numionodes; |
632 | root_lboard[numionodes] = brd; | |
633 | numionodes++; | |
634 | brd = KLCF_NEXT_ANY(brd); | |
635 | if (!brd) | |
636 | break; | |
637 | ||
638 | brd = find_lboard_any(brd, KLTYPE_TIO); | |
639 | } | |
640 | } | |
1da177e4 LT |
641 | } |
642 | ||
643 | int | |
644 | nasid_slice_to_cpuid(int nasid, int slice) | |
645 | { | |
646 | long cpu; | |
71a5d027 JS |
647 | |
648 | for (cpu=0; cpu < NR_CPUS; cpu++) | |
9b48b466 DN |
649 | if (cpuid_to_nasid(cpu) == nasid && |
650 | cpuid_to_slice(cpu) == slice) | |
1da177e4 LT |
651 | return cpu; |
652 | ||
653 | return -1; | |
654 | } |