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Commit | Line | Data |
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ac23d4ee JS |
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 | * | |
6 | * SGI UV APIC functions (note: not an Intel compatible APIC) | |
7 | * | |
5f40f7d9 | 8 | * Copyright (C) 2007-2014 Silicon Graphics, Inc. All rights reserved. |
ac23d4ee | 9 | */ |
ac23d4ee | 10 | #include <linux/cpumask.h> |
0b1da1c8 IM |
11 | #include <linux/hardirq.h> |
12 | #include <linux/proc_fs.h> | |
13 | #include <linux/threads.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/module.h> | |
ac23d4ee | 16 | #include <linux/string.h> |
ac23d4ee | 17 | #include <linux/ctype.h> |
ac23d4ee | 18 | #include <linux/sched.h> |
7f1baa06 | 19 | #include <linux/timer.h> |
5a0e3ad6 | 20 | #include <linux/slab.h> |
0b1da1c8 IM |
21 | #include <linux/cpu.h> |
22 | #include <linux/init.h> | |
27229ca6 | 23 | #include <linux/io.h> |
841582ea | 24 | #include <linux/pci.h> |
78c06176 | 25 | #include <linux/kdebug.h> |
ca444564 | 26 | #include <linux/delay.h> |
818987e9 | 27 | #include <linux/crash_dump.h> |
1b3a5d02 | 28 | #include <linux/reboot.h> |
0b1da1c8 | 29 | |
ac23d4ee JS |
30 | #include <asm/uv/uv_mmrs.h> |
31 | #include <asm/uv/uv_hub.h> | |
0b1da1c8 IM |
32 | #include <asm/current.h> |
33 | #include <asm/pgtable.h> | |
7019cc2d | 34 | #include <asm/uv/bios.h> |
0b1da1c8 IM |
35 | #include <asm/uv/uv.h> |
36 | #include <asm/apic.h> | |
37 | #include <asm/ipi.h> | |
38 | #include <asm/smp.h> | |
fd12a0d6 | 39 | #include <asm/x86_init.h> |
1d44e828 JS |
40 | #include <asm/nmi.h> |
41 | ||
510b3725 YL |
42 | DEFINE_PER_CPU(int, x2apic_extra_bits); |
43 | ||
841582ea MT |
44 | #define PR_DEVEL(fmt, args...) pr_devel("%s: " fmt, __func__, args) |
45 | ||
1b9b89e7 | 46 | static enum uv_system_type uv_system_type; |
fd12a0d6 | 47 | static u64 gru_start_paddr, gru_end_paddr; |
879d5ad0 DS |
48 | static u64 gru_dist_base, gru_first_node_paddr = -1LL, gru_last_node_paddr; |
49 | static u64 gru_dist_lmask, gru_dist_umask; | |
c8f730b1 | 50 | static union uvh_apicid uvh_apicid; |
7a1110e8 JS |
51 | int uv_min_hub_revision_id; |
52 | EXPORT_SYMBOL_GPL(uv_min_hub_revision_id); | |
8191c9f6 DS |
53 | unsigned int uv_apicid_hibits; |
54 | EXPORT_SYMBOL_GPL(uv_apicid_hibits); | |
fd12a0d6 | 55 | |
1a8880a1 SS |
56 | static struct apic apic_x2apic_uv_x; |
57 | ||
e6810413 JS |
58 | static unsigned long __init uv_early_read_mmr(unsigned long addr) |
59 | { | |
60 | unsigned long val, *mmr; | |
61 | ||
62 | mmr = early_ioremap(UV_LOCAL_MMR_BASE | addr, sizeof(*mmr)); | |
63 | val = *mmr; | |
64 | early_iounmap(mmr, sizeof(*mmr)); | |
65 | return val; | |
66 | } | |
67 | ||
eb41c8be | 68 | static inline bool is_GRU_range(u64 start, u64 end) |
fd12a0d6 | 69 | { |
879d5ad0 DS |
70 | if (gru_dist_base) { |
71 | u64 su = start & gru_dist_umask; /* upper (incl pnode) bits */ | |
72 | u64 sl = start & gru_dist_lmask; /* base offset bits */ | |
73 | u64 eu = end & gru_dist_umask; | |
74 | u64 el = end & gru_dist_lmask; | |
75 | ||
76 | /* Must reside completely within a single GRU range */ | |
77 | return (sl == gru_dist_base && el == gru_dist_base && | |
78 | su >= gru_first_node_paddr && | |
79 | su <= gru_last_node_paddr && | |
80 | eu == su); | |
81 | } else { | |
82 | return start >= gru_start_paddr && end <= gru_end_paddr; | |
83 | } | |
fd12a0d6 JS |
84 | } |
85 | ||
eb41c8be | 86 | static bool uv_is_untracked_pat_range(u64 start, u64 end) |
fd12a0d6 JS |
87 | { |
88 | return is_ISA_range(start, end) || is_GRU_range(start, end); | |
89 | } | |
1b9b89e7 | 90 | |
d8850ba4 | 91 | static int __init early_get_pnodeid(void) |
27229ca6 JS |
92 | { |
93 | union uvh_node_id_u node_id; | |
d8850ba4 JS |
94 | union uvh_rh_gam_config_mmr_u m_n_config; |
95 | int pnode; | |
7a1110e8 JS |
96 | |
97 | /* Currently, all blades have same revision number */ | |
e6810413 | 98 | node_id.v = uv_early_read_mmr(UVH_NODE_ID); |
d8850ba4 | 99 | m_n_config.v = uv_early_read_mmr(UVH_RH_GAM_CONFIG_MMR); |
7a1110e8 JS |
100 | uv_min_hub_revision_id = node_id.s.revision; |
101 | ||
b15cc4a1 MT |
102 | switch (node_id.s.part_number) { |
103 | case UV2_HUB_PART_NUMBER: | |
104 | case UV2_HUB_PART_NUMBER_X: | |
b495e039 | 105 | uv_min_hub_revision_id += UV2_HUB_REVISION_BASE - 1; |
b15cc4a1 MT |
106 | break; |
107 | case UV3_HUB_PART_NUMBER: | |
108 | case UV3_HUB_PART_NUMBER_X: | |
dd3c9c4b | 109 | uv_min_hub_revision_id += UV3_HUB_REVISION_BASE; |
b15cc4a1 MT |
110 | break; |
111 | } | |
2a919596 JS |
112 | |
113 | uv_hub_info->hub_revision = uv_min_hub_revision_id; | |
d8850ba4 JS |
114 | pnode = (node_id.s.node_id >> 1) & ((1 << m_n_config.s.n_skt) - 1); |
115 | return pnode; | |
27229ca6 JS |
116 | } |
117 | ||
0520bd84 | 118 | static void __init early_get_apic_pnode_shift(void) |
c8f730b1 | 119 | { |
e6810413 | 120 | uvh_apicid.v = uv_early_read_mmr(UVH_APICID); |
c8f730b1 RA |
121 | if (!uvh_apicid.v) |
122 | /* | |
123 | * Old bios, use default value | |
124 | */ | |
125 | uvh_apicid.s.pnode_shift = UV_APIC_PNODE_SHIFT; | |
c8f730b1 RA |
126 | } |
127 | ||
8191c9f6 DS |
128 | /* |
129 | * Add an extra bit as dictated by bios to the destination apicid of | |
130 | * interrupts potentially passing through the UV HUB. This prevents | |
131 | * a deadlock between interrupts and IO port operations. | |
132 | */ | |
133 | static void __init uv_set_apicid_hibit(void) | |
134 | { | |
2a919596 | 135 | union uv1h_lb_target_physical_apic_id_mask_u apicid_mask; |
8191c9f6 | 136 | |
2a919596 JS |
137 | if (is_uv1_hub()) { |
138 | apicid_mask.v = | |
139 | uv_early_read_mmr(UV1H_LB_TARGET_PHYSICAL_APIC_ID_MASK); | |
140 | uv_apicid_hibits = | |
141 | apicid_mask.s1.bit_enables & UV_APICID_HIBIT_MASK; | |
142 | } | |
8191c9f6 DS |
143 | } |
144 | ||
52459ab9 | 145 | static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
1b9b89e7 | 146 | { |
379b97e2 MT |
147 | int pnodeid; |
148 | int uv_apic; | |
1d2c867c | 149 | |
7a4e0170 MT |
150 | if (strncmp(oem_id, "SGI", 3) != 0) |
151 | return 0; | |
152 | ||
379b97e2 MT |
153 | /* |
154 | * Determine UV arch type. | |
155 | * SGI: UV100/1000 | |
156 | * SGI2: UV2000/3000 | |
157 | * SGI3: UV300 (truncated to 4 chars because of different varieties) | |
158 | */ | |
159 | uv_hub_info->hub_revision = | |
160 | !strncmp(oem_id, "SGI3", 4) ? UV3_HUB_REVISION_BASE : | |
161 | !strcmp(oem_id, "SGI2") ? UV2_HUB_REVISION_BASE : | |
162 | !strcmp(oem_id, "SGI") ? UV1_HUB_REVISION_BASE : 0; | |
163 | ||
164 | if (uv_hub_info->hub_revision == 0) | |
165 | goto badbios; | |
166 | ||
167 | pnodeid = early_get_pnodeid(); | |
168 | early_get_apic_pnode_shift(); | |
169 | x86_platform.is_untracked_pat_range = uv_is_untracked_pat_range; | |
170 | x86_platform.nmi_init = uv_nmi_init; | |
171 | ||
172 | if (!strcmp(oem_table_id, "UVX")) { /* most common */ | |
173 | uv_system_type = UV_X2APIC; | |
174 | uv_apic = 0; | |
175 | ||
176 | } else if (!strcmp(oem_table_id, "UVH")) { /* only UV1 systems */ | |
177 | uv_system_type = UV_NON_UNIQUE_APIC; | |
178 | __this_cpu_write(x2apic_extra_bits, | |
179 | pnodeid << uvh_apicid.s.pnode_shift); | |
180 | uv_set_apicid_hibit(); | |
181 | uv_apic = 1; | |
182 | ||
183 | } else if (!strcmp(oem_table_id, "UVL")) { /* only used for */ | |
184 | uv_system_type = UV_LEGACY_APIC; /* very small systems */ | |
185 | uv_apic = 0; | |
186 | ||
187 | } else { | |
188 | goto badbios; | |
1b9b89e7 | 189 | } |
379b97e2 MT |
190 | |
191 | pr_info("UV: OEM IDs %s/%s, System/HUB Types %d/%d, uv_apic %d\n", | |
192 | oem_id, oem_table_id, uv_system_type, | |
193 | uv_min_hub_revision_id, uv_apic); | |
194 | ||
195 | return uv_apic; | |
196 | ||
197 | badbios: | |
198 | pr_err("UV: OEM_ID:%s OEM_TABLE_ID:%s\n", oem_id, oem_table_id); | |
199 | pr_err("Current BIOS not supported, update kernel and/or BIOS\n"); | |
200 | BUG(); | |
1b9b89e7 YL |
201 | } |
202 | ||
203 | enum uv_system_type get_uv_system_type(void) | |
204 | { | |
205 | return uv_system_type; | |
206 | } | |
207 | ||
208 | int is_uv_system(void) | |
209 | { | |
210 | return uv_system_type != UV_NONE; | |
211 | } | |
8067794b | 212 | EXPORT_SYMBOL_GPL(is_uv_system); |
1b9b89e7 | 213 | |
ac23d4ee JS |
214 | DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); |
215 | EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info); | |
216 | ||
217 | struct uv_blade_info *uv_blade_info; | |
218 | EXPORT_SYMBOL_GPL(uv_blade_info); | |
219 | ||
220 | short *uv_node_to_blade; | |
221 | EXPORT_SYMBOL_GPL(uv_node_to_blade); | |
222 | ||
223 | short *uv_cpu_to_blade; | |
224 | EXPORT_SYMBOL_GPL(uv_cpu_to_blade); | |
225 | ||
226 | short uv_possible_blades; | |
227 | EXPORT_SYMBOL_GPL(uv_possible_blades); | |
228 | ||
7019cc2d RA |
229 | unsigned long sn_rtc_cycles_per_second; |
230 | EXPORT_SYMBOL(sn_rtc_cycles_per_second); | |
231 | ||
148f9bb8 | 232 | static int uv_wakeup_secondary(int phys_apicid, unsigned long start_rip) |
ac23d4ee JS |
233 | { |
234 | unsigned long val; | |
9f5314fb | 235 | int pnode; |
ac23d4ee | 236 | |
9f5314fb | 237 | pnode = uv_apicid_to_pnode(phys_apicid); |
8191c9f6 | 238 | phys_apicid |= uv_apicid_hibits; |
ac23d4ee JS |
239 | val = (1UL << UVH_IPI_INT_SEND_SHFT) | |
240 | (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) | | |
2b6163bf | 241 | ((start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) | |
34d05591 | 242 | APIC_DM_INIT; |
9f5314fb | 243 | uv_write_global_mmr64(pnode, UVH_IPI_INT, val); |
34d05591 JS |
244 | |
245 | val = (1UL << UVH_IPI_INT_SEND_SHFT) | | |
246 | (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) | | |
2b6163bf | 247 | ((start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) | |
34d05591 | 248 | APIC_DM_STARTUP; |
9f5314fb | 249 | uv_write_global_mmr64(pnode, UVH_IPI_INT, val); |
2b6163bf | 250 | |
ac23d4ee JS |
251 | return 0; |
252 | } | |
253 | ||
254 | static void uv_send_IPI_one(int cpu, int vector) | |
255 | { | |
66666e50 | 256 | unsigned long apicid; |
9f5314fb | 257 | int pnode; |
ac23d4ee | 258 | |
1e0b5d00 | 259 | apicid = per_cpu(x86_cpu_to_apicid, cpu); |
9f5314fb | 260 | pnode = uv_apicid_to_pnode(apicid); |
66666e50 | 261 | uv_hub_send_ipi(pnode, apicid, vector); |
ac23d4ee JS |
262 | } |
263 | ||
bcda016e | 264 | static void uv_send_IPI_mask(const struct cpumask *mask, int vector) |
ac23d4ee JS |
265 | { |
266 | unsigned int cpu; | |
267 | ||
bcda016e | 268 | for_each_cpu(cpu, mask) |
e7986739 MT |
269 | uv_send_IPI_one(cpu, vector); |
270 | } | |
271 | ||
bcda016e | 272 | static void uv_send_IPI_mask_allbutself(const struct cpumask *mask, int vector) |
e7986739 | 273 | { |
e7986739 | 274 | unsigned int this_cpu = smp_processor_id(); |
dac5f412 | 275 | unsigned int cpu; |
e7986739 | 276 | |
dac5f412 | 277 | for_each_cpu(cpu, mask) { |
e7986739 | 278 | if (cpu != this_cpu) |
ac23d4ee | 279 | uv_send_IPI_one(cpu, vector); |
dac5f412 | 280 | } |
ac23d4ee JS |
281 | } |
282 | ||
283 | static void uv_send_IPI_allbutself(int vector) | |
284 | { | |
e7986739 | 285 | unsigned int this_cpu = smp_processor_id(); |
dac5f412 | 286 | unsigned int cpu; |
ac23d4ee | 287 | |
dac5f412 | 288 | for_each_online_cpu(cpu) { |
e7986739 MT |
289 | if (cpu != this_cpu) |
290 | uv_send_IPI_one(cpu, vector); | |
dac5f412 | 291 | } |
ac23d4ee JS |
292 | } |
293 | ||
294 | static void uv_send_IPI_all(int vector) | |
295 | { | |
bcda016e | 296 | uv_send_IPI_mask(cpu_online_mask, vector); |
ac23d4ee JS |
297 | } |
298 | ||
b7157acf SP |
299 | static int uv_apic_id_valid(int apicid) |
300 | { | |
301 | return 1; | |
302 | } | |
303 | ||
ac23d4ee JS |
304 | static int uv_apic_id_registered(void) |
305 | { | |
306 | return 1; | |
307 | } | |
308 | ||
277d1f58 | 309 | static void uv_init_apic_ldr(void) |
5c520a67 SS |
310 | { |
311 | } | |
312 | ||
ff164324 | 313 | static int |
debccb3e | 314 | uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask, |
ff164324 AG |
315 | const struct cpumask *andmask, |
316 | unsigned int *apicid) | |
95d313cf | 317 | { |
ea3807ea | 318 | int unsigned cpu; |
95d313cf MT |
319 | |
320 | /* | |
321 | * We're using fixed IRQ delivery, can only return one phys APIC ID. | |
322 | * May as well be the first. | |
323 | */ | |
debccb3e | 324 | for_each_cpu_and(cpu, cpumask, andmask) { |
a775a38b MT |
325 | if (cpumask_test_cpu(cpu, cpu_online_mask)) |
326 | break; | |
debccb3e | 327 | } |
ff164324 | 328 | |
ea3807ea | 329 | if (likely(cpu < nr_cpu_ids)) { |
a5a39156 AG |
330 | *apicid = per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits; |
331 | return 0; | |
a5a39156 | 332 | } |
ea3807ea AG |
333 | |
334 | return -EINVAL; | |
95d313cf MT |
335 | } |
336 | ||
ca6c8ed4 | 337 | static unsigned int x2apic_get_apic_id(unsigned long x) |
0c81c746 SS |
338 | { |
339 | unsigned int id; | |
340 | ||
341 | WARN_ON(preemptible() && num_online_cpus() > 1); | |
0a3aee0d | 342 | id = x | __this_cpu_read(x2apic_extra_bits); |
0c81c746 SS |
343 | |
344 | return id; | |
345 | } | |
346 | ||
1b9b89e7 | 347 | static unsigned long set_apic_id(unsigned int id) |
f910a9dc YL |
348 | { |
349 | unsigned long x; | |
350 | ||
351 | /* maskout x2apic_extra_bits ? */ | |
352 | x = id; | |
353 | return x; | |
354 | } | |
355 | ||
356 | static unsigned int uv_read_apic_id(void) | |
357 | { | |
358 | ||
ca6c8ed4 | 359 | return x2apic_get_apic_id(apic_read(APIC_ID)); |
f910a9dc YL |
360 | } |
361 | ||
d4c9a9f3 | 362 | static int uv_phys_pkg_id(int initial_apicid, int index_msb) |
ac23d4ee | 363 | { |
0c81c746 | 364 | return uv_read_apic_id() >> index_msb; |
ac23d4ee JS |
365 | } |
366 | ||
ac23d4ee JS |
367 | static void uv_send_IPI_self(int vector) |
368 | { | |
369 | apic_write(APIC_SELF_IPI, vector); | |
370 | } | |
ac23d4ee | 371 | |
9ebd680b SS |
372 | static int uv_probe(void) |
373 | { | |
374 | return apic == &apic_x2apic_uv_x; | |
375 | } | |
376 | ||
1a8880a1 | 377 | static struct apic __refdata apic_x2apic_uv_x = { |
c7967329 IM |
378 | |
379 | .name = "UV large system", | |
9ebd680b | 380 | .probe = uv_probe, |
c7967329 | 381 | .acpi_madt_oem_check = uv_acpi_madt_oem_check, |
b7157acf | 382 | .apic_id_valid = uv_apic_id_valid, |
c7967329 IM |
383 | .apic_id_registered = uv_apic_id_registered, |
384 | ||
f8987a10 | 385 | .irq_delivery_mode = dest_Fixed, |
c5997fa8 | 386 | .irq_dest_mode = 0, /* physical */ |
c7967329 | 387 | |
bf721d3a | 388 | .target_cpus = online_target_cpus, |
08125d3e | 389 | .disable_esr = 0, |
bdb1a9b6 | 390 | .dest_logical = APIC_DEST_LOGICAL, |
c7967329 | 391 | .check_apicid_used = NULL, |
c7967329 | 392 | |
9d8e1066 | 393 | .vector_allocation_domain = default_vector_allocation_domain, |
c7967329 IM |
394 | .init_apic_ldr = uv_init_apic_ldr, |
395 | ||
396 | .ioapic_phys_id_map = NULL, | |
397 | .setup_apic_routing = NULL, | |
a21769a4 | 398 | .cpu_present_to_apicid = default_cpu_present_to_apicid, |
c7967329 | 399 | .apicid_to_cpu_present = NULL, |
a27a6210 | 400 | .check_phys_apicid_present = default_check_phys_apicid_present, |
d4c9a9f3 | 401 | .phys_pkg_id = uv_phys_pkg_id, |
c7967329 | 402 | |
ca6c8ed4 | 403 | .get_apic_id = x2apic_get_apic_id, |
c7967329 IM |
404 | .set_apic_id = set_apic_id, |
405 | .apic_id_mask = 0xFFFFFFFFu, | |
406 | ||
c7967329 IM |
407 | .cpu_mask_to_apicid_and = uv_cpu_mask_to_apicid_and, |
408 | ||
409 | .send_IPI_mask = uv_send_IPI_mask, | |
410 | .send_IPI_mask_allbutself = uv_send_IPI_mask_allbutself, | |
411 | .send_IPI_allbutself = uv_send_IPI_allbutself, | |
412 | .send_IPI_all = uv_send_IPI_all, | |
413 | .send_IPI_self = uv_send_IPI_self, | |
414 | ||
1f5bcabf | 415 | .wakeup_secondary_cpu = uv_wakeup_secondary, |
c7967329 | 416 | .inquire_remote_apic = NULL, |
c1eeb2de YL |
417 | |
418 | .read = native_apic_msr_read, | |
419 | .write = native_apic_msr_write, | |
0ab711ae | 420 | .eoi_write = native_apic_msr_eoi_write, |
c1eeb2de YL |
421 | .icr_read = native_x2apic_icr_read, |
422 | .icr_write = native_x2apic_icr_write, | |
423 | .wait_icr_idle = native_x2apic_wait_icr_idle, | |
424 | .safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle, | |
ac23d4ee JS |
425 | }; |
426 | ||
148f9bb8 | 427 | static void set_x2apic_extra_bits(int pnode) |
ac23d4ee | 428 | { |
16ee8db6 | 429 | __this_cpu_write(x2apic_extra_bits, pnode << uvh_apicid.s.pnode_shift); |
ac23d4ee JS |
430 | } |
431 | ||
432 | /* | |
433 | * Called on boot cpu. | |
434 | */ | |
9f5314fb JS |
435 | static __init int boot_pnode_to_blade(int pnode) |
436 | { | |
437 | int blade; | |
438 | ||
439 | for (blade = 0; blade < uv_num_possible_blades(); blade++) | |
440 | if (pnode == uv_blade_info[blade].pnode) | |
441 | return blade; | |
442 | BUG(); | |
443 | } | |
444 | ||
445 | struct redir_addr { | |
446 | unsigned long redirect; | |
447 | unsigned long alias; | |
448 | }; | |
449 | ||
450 | #define DEST_SHIFT UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT | |
451 | ||
452 | static __initdata struct redir_addr redir_addrs[] = { | |
62b0cfc2 JS |
453 | {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR}, |
454 | {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR}, | |
455 | {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR}, | |
9f5314fb JS |
456 | }; |
457 | ||
5f40f7d9 DS |
458 | static unsigned char get_n_lshift(int m_val) |
459 | { | |
460 | union uv3h_gr0_gam_gr_config_u m_gr_config; | |
461 | ||
462 | if (is_uv1_hub()) | |
463 | return m_val; | |
464 | ||
465 | if (is_uv2_hub()) | |
466 | return m_val == 40 ? 40 : 39; | |
467 | ||
468 | m_gr_config.v = uv_read_local_mmr(UV3H_GR0_GAM_GR_CONFIG); | |
469 | return m_gr_config.s3.m_skt; | |
470 | } | |
471 | ||
9f5314fb JS |
472 | static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size) |
473 | { | |
62b0cfc2 | 474 | union uvh_rh_gam_alias210_overlay_config_2_mmr_u alias; |
9f5314fb JS |
475 | union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect; |
476 | int i; | |
477 | ||
478 | for (i = 0; i < ARRAY_SIZE(redir_addrs); i++) { | |
479 | alias.v = uv_read_local_mmr(redir_addrs[i].alias); | |
036ed8ba | 480 | if (alias.s.enable && alias.s.base == 0) { |
9f5314fb JS |
481 | *size = (1UL << alias.s.m_alias); |
482 | redirect.v = uv_read_local_mmr(redir_addrs[i].redirect); | |
483 | *base = (unsigned long)redirect.s.dest_base << DEST_SHIFT; | |
484 | return; | |
485 | } | |
486 | } | |
036ed8ba | 487 | *base = *size = 0; |
9f5314fb JS |
488 | } |
489 | ||
83f5d894 JS |
490 | enum map_type {map_wb, map_uc}; |
491 | ||
fcfbb2b5 MT |
492 | static __init void map_high(char *id, unsigned long base, int pshift, |
493 | int bshift, int max_pnode, enum map_type map_type) | |
83f5d894 JS |
494 | { |
495 | unsigned long bytes, paddr; | |
496 | ||
fcfbb2b5 MT |
497 | paddr = base << pshift; |
498 | bytes = (1UL << bshift) * (max_pnode + 1); | |
b15cc4a1 MT |
499 | if (!paddr) { |
500 | pr_info("UV: Map %s_HI base address NULL\n", id); | |
501 | return; | |
502 | } | |
879d5ad0 | 503 | pr_debug("UV: Map %s_HI 0x%lx - 0x%lx\n", id, paddr, paddr + bytes); |
83f5d894 JS |
504 | if (map_type == map_uc) |
505 | init_extra_mapping_uc(paddr, bytes); | |
506 | else | |
507 | init_extra_mapping_wb(paddr, bytes); | |
83f5d894 | 508 | } |
b15cc4a1 | 509 | |
879d5ad0 DS |
510 | static __init void map_gru_distributed(unsigned long c) |
511 | { | |
512 | union uvh_rh_gam_gru_overlay_config_mmr_u gru; | |
513 | u64 paddr; | |
514 | unsigned long bytes; | |
515 | int nid; | |
516 | ||
517 | gru.v = c; | |
518 | /* only base bits 42:28 relevant in dist mode */ | |
519 | gru_dist_base = gru.v & 0x000007fff0000000UL; | |
520 | if (!gru_dist_base) { | |
521 | pr_info("UV: Map GRU_DIST base address NULL\n"); | |
522 | return; | |
523 | } | |
524 | bytes = 1UL << UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT; | |
525 | gru_dist_lmask = ((1UL << uv_hub_info->m_val) - 1) & ~(bytes - 1); | |
526 | gru_dist_umask = ~((1UL << uv_hub_info->m_val) - 1); | |
527 | gru_dist_base &= gru_dist_lmask; /* Clear bits above M */ | |
528 | for_each_online_node(nid) { | |
529 | paddr = ((u64)uv_node_to_pnode(nid) << uv_hub_info->m_val) | | |
530 | gru_dist_base; | |
531 | init_extra_mapping_wb(paddr, bytes); | |
532 | gru_first_node_paddr = min(paddr, gru_first_node_paddr); | |
533 | gru_last_node_paddr = max(paddr, gru_last_node_paddr); | |
534 | } | |
535 | /* Save upper (63:M) bits of address only for is_GRU_range */ | |
536 | gru_first_node_paddr &= gru_dist_umask; | |
537 | gru_last_node_paddr &= gru_dist_umask; | |
538 | pr_debug("UV: Map GRU_DIST base 0x%016llx 0x%016llx - 0x%016llx\n", | |
539 | gru_dist_base, gru_first_node_paddr, gru_last_node_paddr); | |
540 | } | |
541 | ||
83f5d894 JS |
542 | static __init void map_gru_high(int max_pnode) |
543 | { | |
544 | union uvh_rh_gam_gru_overlay_config_mmr_u gru; | |
545 | int shift = UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT; | |
546 | ||
547 | gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR); | |
879d5ad0 | 548 | if (!gru.s.enable) { |
b15cc4a1 | 549 | pr_info("UV: GRU disabled\n"); |
879d5ad0 DS |
550 | return; |
551 | } | |
552 | ||
553 | if (is_uv3_hub() && gru.s3.mode) { | |
554 | map_gru_distributed(gru.v); | |
555 | return; | |
fd12a0d6 | 556 | } |
879d5ad0 DS |
557 | map_high("GRU", gru.s.base, shift, shift, max_pnode, map_wb); |
558 | gru_start_paddr = ((u64)gru.s.base << shift); | |
559 | gru_end_paddr = gru_start_paddr + (1UL << shift) * (max_pnode + 1); | |
83f5d894 JS |
560 | } |
561 | ||
daf7b9c9 JS |
562 | static __init void map_mmr_high(int max_pnode) |
563 | { | |
564 | union uvh_rh_gam_mmr_overlay_config_mmr_u mmr; | |
565 | int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT; | |
566 | ||
567 | mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR); | |
568 | if (mmr.s.enable) | |
fcfbb2b5 | 569 | map_high("MMR", mmr.s.base, shift, shift, max_pnode, map_uc); |
b15cc4a1 MT |
570 | else |
571 | pr_info("UV: MMR disabled\n"); | |
572 | } | |
573 | ||
574 | /* | |
575 | * This commonality works because both 0 & 1 versions of the MMIOH OVERLAY | |
576 | * and REDIRECT MMR regs are exactly the same on UV3. | |
577 | */ | |
578 | struct mmioh_config { | |
579 | unsigned long overlay; | |
580 | unsigned long redirect; | |
581 | char *id; | |
582 | }; | |
583 | ||
584 | static __initdata struct mmioh_config mmiohs[] = { | |
585 | { | |
586 | UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_MMR, | |
587 | UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG0_MMR, | |
588 | "MMIOH0" | |
589 | }, | |
590 | { | |
591 | UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_MMR, | |
592 | UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG1_MMR, | |
593 | "MMIOH1" | |
594 | }, | |
595 | }; | |
596 | ||
597 | static __init void map_mmioh_high_uv3(int index, int min_pnode, int max_pnode) | |
598 | { | |
599 | union uv3h_rh_gam_mmioh_overlay_config0_mmr_u overlay; | |
600 | unsigned long mmr; | |
601 | unsigned long base; | |
602 | int i, n, shift, m_io, max_io; | |
603 | int nasid, lnasid, fi, li; | |
604 | char *id; | |
605 | ||
606 | id = mmiohs[index].id; | |
607 | overlay.v = uv_read_local_mmr(mmiohs[index].overlay); | |
608 | pr_info("UV: %s overlay 0x%lx base:0x%x m_io:%d\n", | |
609 | id, overlay.v, overlay.s3.base, overlay.s3.m_io); | |
610 | if (!overlay.s3.enable) { | |
611 | pr_info("UV: %s disabled\n", id); | |
612 | return; | |
613 | } | |
614 | ||
615 | shift = UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_MMR_BASE_SHFT; | |
616 | base = (unsigned long)overlay.s3.base; | |
617 | m_io = overlay.s3.m_io; | |
618 | mmr = mmiohs[index].redirect; | |
619 | n = UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG0_MMR_DEPTH; | |
620 | min_pnode *= 2; /* convert to NASID */ | |
621 | max_pnode *= 2; | |
622 | max_io = lnasid = fi = li = -1; | |
623 | ||
624 | for (i = 0; i < n; i++) { | |
625 | union uv3h_rh_gam_mmioh_redirect_config0_mmr_u redirect; | |
626 | ||
627 | redirect.v = uv_read_local_mmr(mmr + i * 8); | |
628 | nasid = redirect.s3.nasid; | |
629 | if (nasid < min_pnode || max_pnode < nasid) | |
630 | nasid = -1; /* invalid NASID */ | |
631 | ||
632 | if (nasid == lnasid) { | |
633 | li = i; | |
634 | if (i != n-1) /* last entry check */ | |
635 | continue; | |
636 | } | |
637 | ||
638 | /* check if we have a cached (or last) redirect to print */ | |
639 | if (lnasid != -1 || (i == n-1 && nasid != -1)) { | |
640 | unsigned long addr1, addr2; | |
641 | int f, l; | |
642 | ||
643 | if (lnasid == -1) { | |
644 | f = l = i; | |
645 | lnasid = nasid; | |
646 | } else { | |
647 | f = fi; | |
648 | l = li; | |
649 | } | |
650 | addr1 = (base << shift) + | |
651 | f * (unsigned long)(1 << m_io); | |
652 | addr2 = (base << shift) + | |
653 | (l + 1) * (unsigned long)(1 << m_io); | |
654 | pr_info("UV: %s[%03d..%03d] NASID 0x%04x ADDR 0x%016lx - 0x%016lx\n", | |
655 | id, fi, li, lnasid, addr1, addr2); | |
656 | if (max_io < l) | |
657 | max_io = l; | |
658 | } | |
659 | fi = li = i; | |
660 | lnasid = nasid; | |
661 | } | |
662 | ||
663 | pr_info("UV: %s base:0x%lx shift:%d M_IO:%d MAX_IO:%d\n", | |
664 | id, base, shift, m_io, max_io); | |
665 | ||
666 | if (max_io >= 0) | |
667 | map_high(id, base, shift, m_io, max_io, map_uc); | |
daf7b9c9 JS |
668 | } |
669 | ||
b15cc4a1 | 670 | static __init void map_mmioh_high(int min_pnode, int max_pnode) |
83f5d894 JS |
671 | { |
672 | union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh; | |
b15cc4a1 MT |
673 | unsigned long mmr, base; |
674 | int shift, enable, m_io, n_io; | |
83f5d894 | 675 | |
b15cc4a1 MT |
676 | if (is_uv3_hub()) { |
677 | /* Map both MMIOH Regions */ | |
678 | map_mmioh_high_uv3(0, min_pnode, max_pnode); | |
679 | map_mmioh_high_uv3(1, min_pnode, max_pnode); | |
680 | return; | |
2a919596 | 681 | } |
b15cc4a1 MT |
682 | |
683 | if (is_uv1_hub()) { | |
684 | mmr = UV1H_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR; | |
685 | shift = UV1H_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT; | |
686 | mmioh.v = uv_read_local_mmr(mmr); | |
687 | enable = !!mmioh.s1.enable; | |
688 | base = mmioh.s1.base; | |
689 | m_io = mmioh.s1.m_io; | |
690 | n_io = mmioh.s1.n_io; | |
691 | } else if (is_uv2_hub()) { | |
692 | mmr = UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR; | |
2a919596 | 693 | shift = UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT; |
b15cc4a1 MT |
694 | mmioh.v = uv_read_local_mmr(mmr); |
695 | enable = !!mmioh.s2.enable; | |
696 | base = mmioh.s2.base; | |
697 | m_io = mmioh.s2.m_io; | |
698 | n_io = mmioh.s2.n_io; | |
699 | } else | |
700 | return; | |
701 | ||
702 | if (enable) { | |
703 | max_pnode &= (1 << n_io) - 1; | |
704 | pr_info( | |
705 | "UV: base:0x%lx shift:%d N_IO:%d M_IO:%d max_pnode:0x%x\n", | |
706 | base, shift, m_io, n_io, max_pnode); | |
707 | map_high("MMIOH", base, shift, m_io, max_pnode, map_uc); | |
708 | } else { | |
709 | pr_info("UV: MMIOH disabled\n"); | |
2a919596 | 710 | } |
83f5d894 JS |
711 | } |
712 | ||
918bc960 JS |
713 | static __init void map_low_mmrs(void) |
714 | { | |
715 | init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE); | |
716 | init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE); | |
717 | } | |
718 | ||
7019cc2d RA |
719 | static __init void uv_rtc_init(void) |
720 | { | |
922402f1 RA |
721 | long status; |
722 | u64 ticks_per_sec; | |
7019cc2d | 723 | |
922402f1 RA |
724 | status = uv_bios_freq_base(BIOS_FREQ_BASE_REALTIME_CLOCK, |
725 | &ticks_per_sec); | |
726 | if (status != BIOS_STATUS_SUCCESS || ticks_per_sec < 100000) { | |
7019cc2d RA |
727 | printk(KERN_WARNING |
728 | "unable to determine platform RTC clock frequency, " | |
729 | "guessing.\n"); | |
730 | /* BIOS gives wrong value for clock freq. so guess */ | |
731 | sn_rtc_cycles_per_second = 1000000000000UL / 30000UL; | |
732 | } else | |
733 | sn_rtc_cycles_per_second = ticks_per_sec; | |
734 | } | |
735 | ||
7f1baa06 MT |
736 | /* |
737 | * percpu heartbeat timer | |
738 | */ | |
739 | static void uv_heartbeat(unsigned long ignored) | |
740 | { | |
741 | struct timer_list *timer = &uv_hub_info->scir.timer; | |
742 | unsigned char bits = uv_hub_info->scir.state; | |
743 | ||
744 | /* flip heartbeat bit */ | |
745 | bits ^= SCIR_CPU_HEARTBEAT; | |
746 | ||
69a72a0e MT |
747 | /* is this cpu idle? */ |
748 | if (idle_cpu(raw_smp_processor_id())) | |
7f1baa06 MT |
749 | bits &= ~SCIR_CPU_ACTIVITY; |
750 | else | |
751 | bits |= SCIR_CPU_ACTIVITY; | |
752 | ||
753 | /* update system controller interface reg */ | |
754 | uv_set_scir_bits(bits); | |
755 | ||
756 | /* enable next timer period */ | |
5c333864 | 757 | mod_timer_pinned(timer, jiffies + SCIR_CPU_HB_INTERVAL); |
7f1baa06 MT |
758 | } |
759 | ||
148f9bb8 | 760 | static void uv_heartbeat_enable(int cpu) |
7f1baa06 | 761 | { |
99659a92 | 762 | while (!uv_cpu_hub_info(cpu)->scir.enabled) { |
7f1baa06 MT |
763 | struct timer_list *timer = &uv_cpu_hub_info(cpu)->scir.timer; |
764 | ||
765 | uv_set_cpu_scir_bits(cpu, SCIR_CPU_HEARTBEAT|SCIR_CPU_ACTIVITY); | |
766 | setup_timer(timer, uv_heartbeat, cpu); | |
767 | timer->expires = jiffies + SCIR_CPU_HB_INTERVAL; | |
768 | add_timer_on(timer, cpu); | |
769 | uv_cpu_hub_info(cpu)->scir.enabled = 1; | |
7f1baa06 | 770 | |
99659a92 RK |
771 | /* also ensure that boot cpu is enabled */ |
772 | cpu = 0; | |
773 | } | |
7f1baa06 MT |
774 | } |
775 | ||
77be80e4 | 776 | #ifdef CONFIG_HOTPLUG_CPU |
148f9bb8 | 777 | static void uv_heartbeat_disable(int cpu) |
7f1baa06 MT |
778 | { |
779 | if (uv_cpu_hub_info(cpu)->scir.enabled) { | |
780 | uv_cpu_hub_info(cpu)->scir.enabled = 0; | |
781 | del_timer(&uv_cpu_hub_info(cpu)->scir.timer); | |
782 | } | |
783 | uv_set_cpu_scir_bits(cpu, 0xff); | |
784 | } | |
785 | ||
7f1baa06 MT |
786 | /* |
787 | * cpu hotplug notifier | |
788 | */ | |
148f9bb8 PG |
789 | static int uv_scir_cpu_notify(struct notifier_block *self, unsigned long action, |
790 | void *hcpu) | |
7f1baa06 MT |
791 | { |
792 | long cpu = (long)hcpu; | |
793 | ||
794 | switch (action) { | |
795 | case CPU_ONLINE: | |
796 | uv_heartbeat_enable(cpu); | |
797 | break; | |
798 | case CPU_DOWN_PREPARE: | |
799 | uv_heartbeat_disable(cpu); | |
800 | break; | |
801 | default: | |
802 | break; | |
803 | } | |
804 | return NOTIFY_OK; | |
805 | } | |
806 | ||
807 | static __init void uv_scir_register_cpu_notifier(void) | |
808 | { | |
809 | hotcpu_notifier(uv_scir_cpu_notify, 0); | |
810 | } | |
811 | ||
812 | #else /* !CONFIG_HOTPLUG_CPU */ | |
813 | ||
814 | static __init void uv_scir_register_cpu_notifier(void) | |
815 | { | |
816 | } | |
817 | ||
818 | static __init int uv_init_heartbeat(void) | |
819 | { | |
820 | int cpu; | |
821 | ||
822 | if (is_uv_system()) | |
823 | for_each_online_cpu(cpu) | |
824 | uv_heartbeat_enable(cpu); | |
825 | return 0; | |
826 | } | |
827 | ||
828 | late_initcall(uv_init_heartbeat); | |
829 | ||
830 | #endif /* !CONFIG_HOTPLUG_CPU */ | |
831 | ||
841582ea MT |
832 | /* Direct Legacy VGA I/O traffic to designated IOH */ |
833 | int uv_set_vga_state(struct pci_dev *pdev, bool decode, | |
7ad35cf2 | 834 | unsigned int command_bits, u32 flags) |
841582ea MT |
835 | { |
836 | int domain, bus, rc; | |
837 | ||
7ad35cf2 DA |
838 | PR_DEVEL("devfn %x decode %d cmd %x flags %d\n", |
839 | pdev->devfn, decode, command_bits, flags); | |
841582ea | 840 | |
7ad35cf2 | 841 | if (!(flags & PCI_VGA_STATE_CHANGE_BRIDGE)) |
841582ea MT |
842 | return 0; |
843 | ||
844 | if ((command_bits & PCI_COMMAND_IO) == 0) | |
845 | return 0; | |
846 | ||
847 | domain = pci_domain_nr(pdev->bus); | |
848 | bus = pdev->bus->number; | |
849 | ||
850 | rc = uv_bios_set_legacy_vga_target(decode, domain, bus); | |
851 | PR_DEVEL("vga decode %d %x:%x, rc: %d\n", decode, domain, bus, rc); | |
852 | ||
853 | return rc; | |
854 | } | |
855 | ||
8da077d6 JS |
856 | /* |
857 | * Called on each cpu to initialize the per_cpu UV data area. | |
0b1da1c8 | 858 | * FIXME: hotplug not supported yet |
8da077d6 | 859 | */ |
148f9bb8 | 860 | void uv_cpu_init(void) |
8da077d6 JS |
861 | { |
862 | /* CPU 0 initilization will be done via uv_system_init. */ | |
863 | if (!uv_blade_info) | |
864 | return; | |
865 | ||
866 | uv_blade_info[uv_numa_blade_id()].nr_online_cpus++; | |
867 | ||
868 | if (get_uv_system_type() == UV_NON_UNIQUE_APIC) | |
869 | set_x2apic_extra_bits(uv_hub_info->pnode); | |
870 | } | |
871 | ||
c4bd1fda | 872 | void __init uv_system_init(void) |
ac23d4ee | 873 | { |
62b0cfc2 | 874 | union uvh_rh_gam_config_mmr_u m_n_config; |
9f5314fb JS |
875 | union uvh_node_id_u node_id; |
876 | unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size; | |
b15cc4a1 MT |
877 | int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val; |
878 | int gnode_extra, min_pnode = 999999, max_pnode = -1; | |
6a891a24 | 879 | unsigned long mmr_base, present, paddr; |
b15cc4a1 | 880 | unsigned short pnode_mask; |
5f40f7d9 | 881 | unsigned char n_lshift; |
1912c7af MT |
882 | char *hub = (is_uv1_hub() ? "UV100/1000" : |
883 | (is_uv2_hub() ? "UV2000/3000" : | |
884 | (is_uv3_hub() ? "UV300" : NULL))); | |
ac23d4ee | 885 | |
1912c7af MT |
886 | if (!hub) { |
887 | pr_err("UV: Unknown/unsupported UV hub\n"); | |
888 | return; | |
889 | } | |
b15cc4a1 | 890 | pr_info("UV: Found %s hub\n", hub); |
918bc960 JS |
891 | map_low_mmrs(); |
892 | ||
62b0cfc2 | 893 | m_n_config.v = uv_read_local_mmr(UVH_RH_GAM_CONFIG_MMR ); |
9f5314fb JS |
894 | m_val = m_n_config.s.m_skt; |
895 | n_val = m_n_config.s.n_skt; | |
b15cc4a1 | 896 | pnode_mask = (1 << n_val) - 1; |
5f40f7d9 | 897 | n_lshift = get_n_lshift(m_val); |
ac23d4ee JS |
898 | mmr_base = |
899 | uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) & | |
900 | ~UV_MMR_ENABLE; | |
d8850ba4 | 901 | |
c4ed3f04 JS |
902 | node_id.v = uv_read_local_mmr(UVH_NODE_ID); |
903 | gnode_extra = (node_id.s.node_id & ~((1 << n_val) - 1)) >> 1; | |
904 | gnode_upper = ((unsigned long)gnode_extra << m_val); | |
5f40f7d9 DS |
905 | pr_info("UV: N:%d M:%d pnode_mask:0x%x gnode_upper/extra:0x%lx/0x%x n_lshift 0x%x\n", |
906 | n_val, m_val, pnode_mask, gnode_upper, gnode_extra, | |
907 | n_lshift); | |
c4ed3f04 | 908 | |
b15cc4a1 | 909 | pr_info("UV: global MMR base 0x%lx\n", mmr_base); |
ac23d4ee | 910 | |
9f5314fb JS |
911 | for(i = 0; i < UVH_NODE_PRESENT_TABLE_DEPTH; i++) |
912 | uv_possible_blades += | |
913 | hweight64(uv_read_local_mmr( UVH_NODE_PRESENT_TABLE + i * 8)); | |
da517a08 JS |
914 | |
915 | /* uv_num_possible_blades() is really the hub count */ | |
b15cc4a1 | 916 | pr_info("UV: Found %d blades, %d hubs\n", |
da517a08 JS |
917 | is_uv1_hub() ? uv_num_possible_blades() : |
918 | (uv_num_possible_blades() + 1) / 2, | |
919 | uv_num_possible_blades()); | |
ac23d4ee JS |
920 | |
921 | bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); | |
1d44e828 | 922 | uv_blade_info = kzalloc(bytes, GFP_KERNEL); |
9a8709d4 | 923 | BUG_ON(!uv_blade_info); |
1d44e828 | 924 | |
6c7184b7 JS |
925 | for (blade = 0; blade < uv_num_possible_blades(); blade++) |
926 | uv_blade_info[blade].memory_nid = -1; | |
ac23d4ee | 927 | |
9f5314fb JS |
928 | get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size); |
929 | ||
ac23d4ee | 930 | bytes = sizeof(uv_node_to_blade[0]) * num_possible_nodes(); |
ef020ab0 | 931 | uv_node_to_blade = kmalloc(bytes, GFP_KERNEL); |
9a8709d4 | 932 | BUG_ON(!uv_node_to_blade); |
ac23d4ee JS |
933 | memset(uv_node_to_blade, 255, bytes); |
934 | ||
935 | bytes = sizeof(uv_cpu_to_blade[0]) * num_possible_cpus(); | |
ef020ab0 | 936 | uv_cpu_to_blade = kmalloc(bytes, GFP_KERNEL); |
9a8709d4 | 937 | BUG_ON(!uv_cpu_to_blade); |
ac23d4ee JS |
938 | memset(uv_cpu_to_blade, 255, bytes); |
939 | ||
9f5314fb JS |
940 | blade = 0; |
941 | for (i = 0; i < UVH_NODE_PRESENT_TABLE_DEPTH; i++) { | |
942 | present = uv_read_local_mmr(UVH_NODE_PRESENT_TABLE + i * 8); | |
943 | for (j = 0; j < 64; j++) { | |
944 | if (!test_bit(j, &present)) | |
945 | continue; | |
d8850ba4 | 946 | pnode = (i * 64 + j) & pnode_mask; |
36ac4b98 | 947 | uv_blade_info[blade].pnode = pnode; |
9f5314fb | 948 | uv_blade_info[blade].nr_possible_cpus = 0; |
ac23d4ee | 949 | uv_blade_info[blade].nr_online_cpus = 0; |
1d44e828 | 950 | spin_lock_init(&uv_blade_info[blade].nmi_lock); |
b15cc4a1 | 951 | min_pnode = min(pnode, min_pnode); |
36ac4b98 | 952 | max_pnode = max(pnode, max_pnode); |
9f5314fb | 953 | blade++; |
ac23d4ee | 954 | } |
9f5314fb | 955 | } |
ac23d4ee | 956 | |
7f594232 | 957 | uv_bios_init(); |
b76365a1 RA |
958 | uv_bios_get_sn_info(0, &uv_type, &sn_partition_id, &sn_coherency_id, |
959 | &sn_region_size, &system_serial_number); | |
7019cc2d RA |
960 | uv_rtc_init(); |
961 | ||
9f5314fb | 962 | for_each_present_cpu(cpu) { |
39d30770 MT |
963 | int apicid = per_cpu(x86_cpu_to_apicid, cpu); |
964 | ||
9f5314fb | 965 | nid = cpu_to_node(cpu); |
c8f730b1 RA |
966 | /* |
967 | * apic_pnode_shift must be set before calling uv_apicid_to_pnode(); | |
968 | */ | |
d8850ba4 | 969 | uv_cpu_hub_info(cpu)->pnode_mask = pnode_mask; |
c8f730b1 | 970 | uv_cpu_hub_info(cpu)->apic_pnode_shift = uvh_apicid.s.pnode_shift; |
2a919596 JS |
971 | uv_cpu_hub_info(cpu)->hub_revision = uv_hub_info->hub_revision; |
972 | ||
6a469e46 | 973 | uv_cpu_hub_info(cpu)->m_shift = 64 - m_val; |
5f40f7d9 | 974 | uv_cpu_hub_info(cpu)->n_lshift = n_lshift; |
6a469e46 | 975 | |
39d30770 | 976 | pnode = uv_apicid_to_pnode(apicid); |
9f5314fb JS |
977 | blade = boot_pnode_to_blade(pnode); |
978 | lcpu = uv_blade_info[blade].nr_possible_cpus; | |
979 | uv_blade_info[blade].nr_possible_cpus++; | |
980 | ||
6c7184b7 JS |
981 | /* Any node on the blade, else will contain -1. */ |
982 | uv_blade_info[blade].memory_nid = nid; | |
983 | ||
9f5314fb | 984 | uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base; |
189f67c4 | 985 | uv_cpu_hub_info(cpu)->lowmem_remap_top = lowmem_redir_size; |
9f5314fb | 986 | uv_cpu_hub_info(cpu)->m_val = m_val; |
036ed8ba | 987 | uv_cpu_hub_info(cpu)->n_val = n_val; |
ac23d4ee JS |
988 | uv_cpu_hub_info(cpu)->numa_blade_id = blade; |
989 | uv_cpu_hub_info(cpu)->blade_processor_id = lcpu; | |
9f5314fb | 990 | uv_cpu_hub_info(cpu)->pnode = pnode; |
036ed8ba | 991 | uv_cpu_hub_info(cpu)->gpa_mask = (1UL << (m_val + n_val)) - 1; |
9f5314fb | 992 | uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper; |
c4ed3f04 | 993 | uv_cpu_hub_info(cpu)->gnode_extra = gnode_extra; |
ac23d4ee | 994 | uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base; |
b0f20989 | 995 | uv_cpu_hub_info(cpu)->coherency_domain_number = sn_coherency_id; |
39d30770 | 996 | uv_cpu_hub_info(cpu)->scir.offset = uv_scir_offset(apicid); |
ac23d4ee JS |
997 | uv_node_to_blade[nid] = blade; |
998 | uv_cpu_to_blade[cpu] = blade; | |
ac23d4ee | 999 | } |
83f5d894 | 1000 | |
6a891a24 JS |
1001 | /* Add blade/pnode info for nodes without cpus */ |
1002 | for_each_online_node(nid) { | |
1003 | if (uv_node_to_blade[nid] >= 0) | |
1004 | continue; | |
1005 | paddr = node_start_pfn(nid) << PAGE_SHIFT; | |
6a469e46 | 1006 | pnode = uv_gpa_to_pnode(uv_soc_phys_ram_to_gpa(paddr)); |
6a891a24 JS |
1007 | blade = boot_pnode_to_blade(pnode); |
1008 | uv_node_to_blade[nid] = blade; | |
1009 | } | |
1010 | ||
83f5d894 | 1011 | map_gru_high(max_pnode); |
daf7b9c9 | 1012 | map_mmr_high(max_pnode); |
b15cc4a1 | 1013 | map_mmioh_high(min_pnode, max_pnode); |
ac23d4ee | 1014 | |
0d12ef0c | 1015 | uv_nmi_setup(); |
8da077d6 | 1016 | uv_cpu_init(); |
7f1baa06 | 1017 | uv_scir_register_cpu_notifier(); |
a3d732f9 | 1018 | proc_mkdir("sgi_uv", NULL); |
841582ea MT |
1019 | |
1020 | /* register Legacy VGA I/O redirection handler */ | |
1021 | pci_register_set_vga_state(uv_set_vga_state); | |
818987e9 CW |
1022 | |
1023 | /* | |
1024 | * For a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as | |
1025 | * EFI is not enabled in the kdump kernel. | |
1026 | */ | |
1027 | if (is_kdump_kernel()) | |
1028 | reboot_type = BOOT_ACPI; | |
ac23d4ee | 1029 | } |
107e0e0c SS |
1030 | |
1031 | apic_driver(apic_x2apic_uv_x); |