Commit | Line | Data |
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9fd8b647 | 1 | /* pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support. |
1da177e4 | 2 | * |
9fd8b647 | 3 | * Copyright (C) 2001, 2002, 2003, 2007 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
4 | */ |
5 | ||
6 | #include <linux/kernel.h> | |
7 | #include <linux/types.h> | |
8 | #include <linux/pci.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/slab.h> | |
11 | #include <linux/interrupt.h> | |
12 | ||
13 | #include <asm/pbm.h> | |
14 | #include <asm/iommu.h> | |
15 | #include <asm/irq.h> | |
16 | #include <asm/upa.h> | |
bb6743f4 | 17 | #include <asm/pstate.h> |
e87dc350 | 18 | #include <asm/prom.h> |
1da177e4 LT |
19 | |
20 | #include "pci_impl.h" | |
21 | #include "iommu_common.h" | |
22 | ||
23 | /* All SCHIZO registers are 64-bits. The following accessor | |
24 | * routines are how they are accessed. The REG parameter | |
25 | * is a physical address. | |
26 | */ | |
27 | #define schizo_read(__reg) \ | |
28 | ({ u64 __ret; \ | |
29 | __asm__ __volatile__("ldxa [%1] %2, %0" \ | |
30 | : "=r" (__ret) \ | |
31 | : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \ | |
32 | : "memory"); \ | |
33 | __ret; \ | |
34 | }) | |
35 | #define schizo_write(__reg, __val) \ | |
36 | __asm__ __volatile__("stxa %0, [%1] %2" \ | |
37 | : /* no outputs */ \ | |
38 | : "r" (__val), "r" (__reg), \ | |
39 | "i" (ASI_PHYS_BYPASS_EC_E) \ | |
40 | : "memory") | |
41 | ||
42 | /* This is a convention that at least Excalibur and Merlin | |
43 | * follow. I suppose the SCHIZO used in Starcat and friends | |
44 | * will do similar. | |
45 | * | |
46 | * The only way I could see this changing is if the newlink | |
47 | * block requires more space in Schizo's address space than | |
48 | * they predicted, thus requiring an address space reorg when | |
49 | * the newer Schizo is taped out. | |
50 | */ | |
51 | ||
52 | /* Streaming buffer control register. */ | |
53 | #define SCHIZO_STRBUF_CTRL_LPTR 0x00000000000000f0UL /* LRU Lock Pointer */ | |
54 | #define SCHIZO_STRBUF_CTRL_LENAB 0x0000000000000008UL /* LRU Lock Enable */ | |
55 | #define SCHIZO_STRBUF_CTRL_RRDIS 0x0000000000000004UL /* Rerun Disable */ | |
56 | #define SCHIZO_STRBUF_CTRL_DENAB 0x0000000000000002UL /* Diagnostic Mode Enable */ | |
57 | #define SCHIZO_STRBUF_CTRL_ENAB 0x0000000000000001UL /* Streaming Buffer Enable */ | |
58 | ||
59 | /* IOMMU control register. */ | |
60 | #define SCHIZO_IOMMU_CTRL_RESV 0xfffffffff9000000UL /* Reserved */ | |
61 | #define SCHIZO_IOMMU_CTRL_XLTESTAT 0x0000000006000000UL /* Translation Error Status */ | |
62 | #define SCHIZO_IOMMU_CTRL_XLTEERR 0x0000000001000000UL /* Translation Error encountered */ | |
63 | #define SCHIZO_IOMMU_CTRL_LCKEN 0x0000000000800000UL /* Enable translation locking */ | |
64 | #define SCHIZO_IOMMU_CTRL_LCKPTR 0x0000000000780000UL /* Translation lock pointer */ | |
65 | #define SCHIZO_IOMMU_CTRL_TSBSZ 0x0000000000070000UL /* TSB Size */ | |
66 | #define SCHIZO_IOMMU_TSBSZ_1K 0x0000000000000000UL /* TSB Table 1024 8-byte entries */ | |
67 | #define SCHIZO_IOMMU_TSBSZ_2K 0x0000000000010000UL /* TSB Table 2048 8-byte entries */ | |
68 | #define SCHIZO_IOMMU_TSBSZ_4K 0x0000000000020000UL /* TSB Table 4096 8-byte entries */ | |
69 | #define SCHIZO_IOMMU_TSBSZ_8K 0x0000000000030000UL /* TSB Table 8192 8-byte entries */ | |
70 | #define SCHIZO_IOMMU_TSBSZ_16K 0x0000000000040000UL /* TSB Table 16k 8-byte entries */ | |
71 | #define SCHIZO_IOMMU_TSBSZ_32K 0x0000000000050000UL /* TSB Table 32k 8-byte entries */ | |
72 | #define SCHIZO_IOMMU_TSBSZ_64K 0x0000000000060000UL /* TSB Table 64k 8-byte entries */ | |
73 | #define SCHIZO_IOMMU_TSBSZ_128K 0x0000000000070000UL /* TSB Table 128k 8-byte entries */ | |
74 | #define SCHIZO_IOMMU_CTRL_RESV2 0x000000000000fff8UL /* Reserved */ | |
75 | #define SCHIZO_IOMMU_CTRL_TBWSZ 0x0000000000000004UL /* Assumed page size, 0=8k 1=64k */ | |
76 | #define SCHIZO_IOMMU_CTRL_DENAB 0x0000000000000002UL /* Diagnostic mode enable */ | |
77 | #define SCHIZO_IOMMU_CTRL_ENAB 0x0000000000000001UL /* IOMMU Enable */ | |
78 | ||
79 | /* Schizo config space address format is nearly identical to | |
80 | * that of PSYCHO: | |
81 | * | |
82 | * 32 24 23 16 15 11 10 8 7 2 1 0 | |
83 | * --------------------------------------------------------- | |
84 | * |0 0 0 0 0 0 0 0 0| bus | device | function | reg | 0 0 | | |
85 | * --------------------------------------------------------- | |
86 | */ | |
87 | #define SCHIZO_CONFIG_BASE(PBM) ((PBM)->config_space) | |
88 | #define SCHIZO_CONFIG_ENCODE(BUS, DEVFN, REG) \ | |
89 | (((unsigned long)(BUS) << 16) | \ | |
90 | ((unsigned long)(DEVFN) << 8) | \ | |
91 | ((unsigned long)(REG))) | |
92 | ||
93 | static void *schizo_pci_config_mkaddr(struct pci_pbm_info *pbm, | |
94 | unsigned char bus, | |
95 | unsigned int devfn, | |
96 | int where) | |
97 | { | |
98 | if (!pbm) | |
99 | return NULL; | |
100 | bus -= pbm->pci_first_busno; | |
101 | return (void *) | |
102 | (SCHIZO_CONFIG_BASE(pbm) | | |
103 | SCHIZO_CONFIG_ENCODE(bus, devfn, where)); | |
104 | } | |
105 | ||
106 | /* Just make sure the bus number is in range. */ | |
107 | static int schizo_out_of_range(struct pci_pbm_info *pbm, | |
108 | unsigned char bus, | |
109 | unsigned char devfn) | |
110 | { | |
111 | if (bus < pbm->pci_first_busno || | |
112 | bus > pbm->pci_last_busno) | |
113 | return 1; | |
114 | return 0; | |
115 | } | |
116 | ||
117 | /* SCHIZO PCI configuration space accessors. */ | |
118 | ||
119 | static int schizo_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, | |
120 | int where, int size, u32 *value) | |
121 | { | |
122 | struct pci_pbm_info *pbm = bus_dev->sysdata; | |
123 | unsigned char bus = bus_dev->number; | |
124 | u32 *addr; | |
125 | u16 tmp16; | |
126 | u8 tmp8; | |
127 | ||
128 | switch (size) { | |
129 | case 1: | |
130 | *value = 0xff; | |
131 | break; | |
132 | case 2: | |
133 | *value = 0xffff; | |
134 | break; | |
135 | case 4: | |
136 | *value = 0xffffffff; | |
137 | break; | |
138 | } | |
139 | ||
140 | addr = schizo_pci_config_mkaddr(pbm, bus, devfn, where); | |
141 | if (!addr) | |
142 | return PCIBIOS_SUCCESSFUL; | |
143 | ||
144 | if (schizo_out_of_range(pbm, bus, devfn)) | |
145 | return PCIBIOS_SUCCESSFUL; | |
146 | switch (size) { | |
147 | case 1: | |
148 | pci_config_read8((u8 *)addr, &tmp8); | |
149 | *value = tmp8; | |
150 | break; | |
151 | ||
152 | case 2: | |
153 | if (where & 0x01) { | |
154 | printk("pci_read_config_word: misaligned reg [%x]\n", | |
155 | where); | |
156 | return PCIBIOS_SUCCESSFUL; | |
157 | } | |
158 | pci_config_read16((u16 *)addr, &tmp16); | |
159 | *value = tmp16; | |
160 | break; | |
161 | ||
162 | case 4: | |
163 | if (where & 0x03) { | |
164 | printk("pci_read_config_dword: misaligned reg [%x]\n", | |
165 | where); | |
166 | return PCIBIOS_SUCCESSFUL; | |
167 | } | |
168 | pci_config_read32(addr, value); | |
169 | break; | |
170 | } | |
171 | return PCIBIOS_SUCCESSFUL; | |
172 | } | |
173 | ||
174 | static int schizo_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, | |
175 | int where, int size, u32 value) | |
176 | { | |
177 | struct pci_pbm_info *pbm = bus_dev->sysdata; | |
178 | unsigned char bus = bus_dev->number; | |
179 | u32 *addr; | |
180 | ||
181 | addr = schizo_pci_config_mkaddr(pbm, bus, devfn, where); | |
182 | if (!addr) | |
183 | return PCIBIOS_SUCCESSFUL; | |
184 | ||
185 | if (schizo_out_of_range(pbm, bus, devfn)) | |
186 | return PCIBIOS_SUCCESSFUL; | |
187 | ||
188 | switch (size) { | |
189 | case 1: | |
190 | pci_config_write8((u8 *)addr, value); | |
191 | break; | |
192 | ||
193 | case 2: | |
194 | if (where & 0x01) { | |
195 | printk("pci_write_config_word: misaligned reg [%x]\n", | |
196 | where); | |
197 | return PCIBIOS_SUCCESSFUL; | |
198 | } | |
199 | pci_config_write16((u16 *)addr, value); | |
200 | break; | |
201 | ||
202 | case 4: | |
203 | if (where & 0x03) { | |
204 | printk("pci_write_config_dword: misaligned reg [%x]\n", | |
205 | where); | |
206 | return PCIBIOS_SUCCESSFUL; | |
207 | } | |
208 | ||
209 | pci_config_write32(addr, value); | |
210 | } | |
211 | return PCIBIOS_SUCCESSFUL; | |
212 | } | |
213 | ||
214 | static struct pci_ops schizo_ops = { | |
215 | .read = schizo_read_pci_cfg, | |
216 | .write = schizo_write_pci_cfg, | |
217 | }; | |
218 | ||
1da177e4 LT |
219 | /* SCHIZO error handling support. */ |
220 | enum schizo_error_type { | |
221 | UE_ERR, CE_ERR, PCI_ERR, SAFARI_ERR | |
222 | }; | |
223 | ||
224 | static DEFINE_SPINLOCK(stc_buf_lock); | |
225 | static unsigned long stc_error_buf[128]; | |
226 | static unsigned long stc_tag_buf[16]; | |
227 | static unsigned long stc_line_buf[16]; | |
228 | ||
229 | #define SCHIZO_UE_INO 0x30 /* Uncorrectable ECC error */ | |
230 | #define SCHIZO_CE_INO 0x31 /* Correctable ECC error */ | |
231 | #define SCHIZO_PCIERR_A_INO 0x32 /* PBM A PCI bus error */ | |
232 | #define SCHIZO_PCIERR_B_INO 0x33 /* PBM B PCI bus error */ | |
233 | #define SCHIZO_SERR_INO 0x34 /* Safari interface error */ | |
234 | ||
235 | struct pci_pbm_info *pbm_for_ino(struct pci_controller_info *p, u32 ino) | |
236 | { | |
237 | ino &= IMAP_INO; | |
238 | if (p->pbm_A.ino_bitmap & (1UL << ino)) | |
239 | return &p->pbm_A; | |
240 | if (p->pbm_B.ino_bitmap & (1UL << ino)) | |
241 | return &p->pbm_B; | |
242 | ||
243 | printk("PCI%d: No ino_bitmap entry for ino[%x], bitmaps " | |
244 | "PBM_A[%016lx] PBM_B[%016lx]", | |
245 | p->index, ino, | |
246 | p->pbm_A.ino_bitmap, | |
247 | p->pbm_B.ino_bitmap); | |
248 | printk("PCI%d: Using PBM_A, report this problem immediately.\n", | |
249 | p->index); | |
250 | ||
251 | return &p->pbm_A; | |
252 | } | |
253 | ||
1da177e4 LT |
254 | #define SCHIZO_STC_ERR 0xb800UL /* --> 0xba00 */ |
255 | #define SCHIZO_STC_TAG 0xba00UL /* --> 0xba80 */ | |
256 | #define SCHIZO_STC_LINE 0xbb00UL /* --> 0xbb80 */ | |
257 | ||
258 | #define SCHIZO_STCERR_WRITE 0x2UL | |
259 | #define SCHIZO_STCERR_READ 0x1UL | |
260 | ||
261 | #define SCHIZO_STCTAG_PPN 0x3fffffff00000000UL | |
262 | #define SCHIZO_STCTAG_VPN 0x00000000ffffe000UL | |
263 | #define SCHIZO_STCTAG_VALID 0x8000000000000000UL | |
264 | #define SCHIZO_STCTAG_READ 0x4000000000000000UL | |
265 | ||
266 | #define SCHIZO_STCLINE_LINDX 0x0000000007800000UL | |
267 | #define SCHIZO_STCLINE_SPTR 0x000000000007e000UL | |
268 | #define SCHIZO_STCLINE_LADDR 0x0000000000001fc0UL | |
269 | #define SCHIZO_STCLINE_EPTR 0x000000000000003fUL | |
270 | #define SCHIZO_STCLINE_VALID 0x0000000000600000UL | |
271 | #define SCHIZO_STCLINE_FOFN 0x0000000000180000UL | |
272 | ||
273 | static void __schizo_check_stc_error_pbm(struct pci_pbm_info *pbm, | |
274 | enum schizo_error_type type) | |
275 | { | |
276 | struct pci_strbuf *strbuf = &pbm->stc; | |
277 | unsigned long regbase = pbm->pbm_regs; | |
278 | unsigned long err_base, tag_base, line_base; | |
279 | u64 control; | |
280 | int i; | |
281 | ||
282 | err_base = regbase + SCHIZO_STC_ERR; | |
283 | tag_base = regbase + SCHIZO_STC_TAG; | |
284 | line_base = regbase + SCHIZO_STC_LINE; | |
285 | ||
286 | spin_lock(&stc_buf_lock); | |
287 | ||
288 | /* This is __REALLY__ dangerous. When we put the | |
289 | * streaming buffer into diagnostic mode to probe | |
290 | * it's tags and error status, we _must_ clear all | |
291 | * of the line tag valid bits before re-enabling | |
292 | * the streaming buffer. If any dirty data lives | |
293 | * in the STC when we do this, we will end up | |
294 | * invalidating it before it has a chance to reach | |
295 | * main memory. | |
296 | */ | |
297 | control = schizo_read(strbuf->strbuf_control); | |
298 | schizo_write(strbuf->strbuf_control, | |
299 | (control | SCHIZO_STRBUF_CTRL_DENAB)); | |
300 | for (i = 0; i < 128; i++) { | |
301 | unsigned long val; | |
302 | ||
303 | val = schizo_read(err_base + (i * 8UL)); | |
304 | schizo_write(err_base + (i * 8UL), 0UL); | |
305 | stc_error_buf[i] = val; | |
306 | } | |
307 | for (i = 0; i < 16; i++) { | |
308 | stc_tag_buf[i] = schizo_read(tag_base + (i * 8UL)); | |
309 | stc_line_buf[i] = schizo_read(line_base + (i * 8UL)); | |
310 | schizo_write(tag_base + (i * 8UL), 0UL); | |
311 | schizo_write(line_base + (i * 8UL), 0UL); | |
312 | } | |
313 | ||
314 | /* OK, state is logged, exit diagnostic mode. */ | |
315 | schizo_write(strbuf->strbuf_control, control); | |
316 | ||
317 | for (i = 0; i < 16; i++) { | |
318 | int j, saw_error, first, last; | |
319 | ||
320 | saw_error = 0; | |
321 | first = i * 8; | |
322 | last = first + 8; | |
323 | for (j = first; j < last; j++) { | |
324 | unsigned long errval = stc_error_buf[j]; | |
325 | if (errval != 0) { | |
326 | saw_error++; | |
327 | printk("%s: STC_ERR(%d)[wr(%d)rd(%d)]\n", | |
328 | pbm->name, | |
329 | j, | |
330 | (errval & SCHIZO_STCERR_WRITE) ? 1 : 0, | |
331 | (errval & SCHIZO_STCERR_READ) ? 1 : 0); | |
332 | } | |
333 | } | |
334 | if (saw_error != 0) { | |
335 | unsigned long tagval = stc_tag_buf[i]; | |
336 | unsigned long lineval = stc_line_buf[i]; | |
337 | printk("%s: STC_TAG(%d)[PA(%016lx)VA(%08lx)V(%d)R(%d)]\n", | |
338 | pbm->name, | |
339 | i, | |
340 | ((tagval & SCHIZO_STCTAG_PPN) >> 19UL), | |
341 | (tagval & SCHIZO_STCTAG_VPN), | |
342 | ((tagval & SCHIZO_STCTAG_VALID) ? 1 : 0), | |
343 | ((tagval & SCHIZO_STCTAG_READ) ? 1 : 0)); | |
344 | ||
345 | /* XXX Should spit out per-bank error information... -DaveM */ | |
346 | printk("%s: STC_LINE(%d)[LIDX(%lx)SP(%lx)LADDR(%lx)EP(%lx)" | |
347 | "V(%d)FOFN(%d)]\n", | |
348 | pbm->name, | |
349 | i, | |
350 | ((lineval & SCHIZO_STCLINE_LINDX) >> 23UL), | |
351 | ((lineval & SCHIZO_STCLINE_SPTR) >> 13UL), | |
352 | ((lineval & SCHIZO_STCLINE_LADDR) >> 6UL), | |
353 | ((lineval & SCHIZO_STCLINE_EPTR) >> 0UL), | |
354 | ((lineval & SCHIZO_STCLINE_VALID) ? 1 : 0), | |
355 | ((lineval & SCHIZO_STCLINE_FOFN) ? 1 : 0)); | |
356 | } | |
357 | } | |
358 | ||
359 | spin_unlock(&stc_buf_lock); | |
360 | } | |
361 | ||
362 | /* IOMMU is per-PBM in Schizo, so interrogate both for anonymous | |
363 | * controller level errors. | |
364 | */ | |
365 | ||
366 | #define SCHIZO_IOMMU_TAG 0xa580UL | |
367 | #define SCHIZO_IOMMU_DATA 0xa600UL | |
368 | ||
369 | #define SCHIZO_IOMMU_TAG_CTXT 0x0000001ffe000000UL | |
370 | #define SCHIZO_IOMMU_TAG_ERRSTS 0x0000000001800000UL | |
371 | #define SCHIZO_IOMMU_TAG_ERR 0x0000000000400000UL | |
372 | #define SCHIZO_IOMMU_TAG_WRITE 0x0000000000200000UL | |
373 | #define SCHIZO_IOMMU_TAG_STREAM 0x0000000000100000UL | |
374 | #define SCHIZO_IOMMU_TAG_SIZE 0x0000000000080000UL | |
375 | #define SCHIZO_IOMMU_TAG_VPAGE 0x000000000007ffffUL | |
376 | ||
377 | #define SCHIZO_IOMMU_DATA_VALID 0x0000000100000000UL | |
378 | #define SCHIZO_IOMMU_DATA_CACHE 0x0000000040000000UL | |
379 | #define SCHIZO_IOMMU_DATA_PPAGE 0x000000003fffffffUL | |
380 | ||
381 | static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm, | |
382 | enum schizo_error_type type) | |
383 | { | |
384 | struct pci_iommu *iommu = pbm->iommu; | |
385 | unsigned long iommu_tag[16]; | |
386 | unsigned long iommu_data[16]; | |
387 | unsigned long flags; | |
388 | u64 control; | |
389 | int i; | |
390 | ||
391 | spin_lock_irqsave(&iommu->lock, flags); | |
392 | control = schizo_read(iommu->iommu_control); | |
393 | if (control & SCHIZO_IOMMU_CTRL_XLTEERR) { | |
394 | unsigned long base; | |
395 | char *type_string; | |
396 | ||
397 | /* Clear the error encountered bit. */ | |
398 | control &= ~SCHIZO_IOMMU_CTRL_XLTEERR; | |
399 | schizo_write(iommu->iommu_control, control); | |
400 | ||
401 | switch((control & SCHIZO_IOMMU_CTRL_XLTESTAT) >> 25UL) { | |
402 | case 0: | |
403 | type_string = "Protection Error"; | |
404 | break; | |
405 | case 1: | |
406 | type_string = "Invalid Error"; | |
407 | break; | |
408 | case 2: | |
409 | type_string = "TimeOut Error"; | |
410 | break; | |
411 | case 3: | |
412 | default: | |
413 | type_string = "ECC Error"; | |
414 | break; | |
415 | }; | |
416 | printk("%s: IOMMU Error, type[%s]\n", | |
417 | pbm->name, type_string); | |
418 | ||
419 | /* Put the IOMMU into diagnostic mode and probe | |
420 | * it's TLB for entries with error status. | |
421 | * | |
422 | * It is very possible for another DVMA to occur | |
423 | * while we do this probe, and corrupt the system | |
424 | * further. But we are so screwed at this point | |
425 | * that we are likely to crash hard anyways, so | |
426 | * get as much diagnostic information to the | |
427 | * console as we can. | |
428 | */ | |
429 | schizo_write(iommu->iommu_control, | |
430 | control | SCHIZO_IOMMU_CTRL_DENAB); | |
431 | ||
432 | base = pbm->pbm_regs; | |
433 | ||
434 | for (i = 0; i < 16; i++) { | |
435 | iommu_tag[i] = | |
436 | schizo_read(base + SCHIZO_IOMMU_TAG + (i * 8UL)); | |
437 | iommu_data[i] = | |
438 | schizo_read(base + SCHIZO_IOMMU_DATA + (i * 8UL)); | |
439 | ||
440 | /* Now clear out the entry. */ | |
441 | schizo_write(base + SCHIZO_IOMMU_TAG + (i * 8UL), 0); | |
442 | schizo_write(base + SCHIZO_IOMMU_DATA + (i * 8UL), 0); | |
443 | } | |
444 | ||
445 | /* Leave diagnostic mode. */ | |
446 | schizo_write(iommu->iommu_control, control); | |
447 | ||
448 | for (i = 0; i < 16; i++) { | |
449 | unsigned long tag, data; | |
450 | ||
451 | tag = iommu_tag[i]; | |
452 | if (!(tag & SCHIZO_IOMMU_TAG_ERR)) | |
453 | continue; | |
454 | ||
455 | data = iommu_data[i]; | |
456 | switch((tag & SCHIZO_IOMMU_TAG_ERRSTS) >> 23UL) { | |
457 | case 0: | |
458 | type_string = "Protection Error"; | |
459 | break; | |
460 | case 1: | |
461 | type_string = "Invalid Error"; | |
462 | break; | |
463 | case 2: | |
464 | type_string = "TimeOut Error"; | |
465 | break; | |
466 | case 3: | |
467 | default: | |
468 | type_string = "ECC Error"; | |
469 | break; | |
470 | }; | |
471 | printk("%s: IOMMU TAG(%d)[error(%s) ctx(%x) wr(%d) str(%d) " | |
472 | "sz(%dK) vpg(%08lx)]\n", | |
473 | pbm->name, i, type_string, | |
474 | (int)((tag & SCHIZO_IOMMU_TAG_CTXT) >> 25UL), | |
475 | ((tag & SCHIZO_IOMMU_TAG_WRITE) ? 1 : 0), | |
476 | ((tag & SCHIZO_IOMMU_TAG_STREAM) ? 1 : 0), | |
477 | ((tag & SCHIZO_IOMMU_TAG_SIZE) ? 64 : 8), | |
478 | (tag & SCHIZO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT); | |
479 | printk("%s: IOMMU DATA(%d)[valid(%d) cache(%d) ppg(%016lx)]\n", | |
480 | pbm->name, i, | |
481 | ((data & SCHIZO_IOMMU_DATA_VALID) ? 1 : 0), | |
482 | ((data & SCHIZO_IOMMU_DATA_CACHE) ? 1 : 0), | |
483 | (data & SCHIZO_IOMMU_DATA_PPAGE) << IOMMU_PAGE_SHIFT); | |
484 | } | |
485 | } | |
486 | if (pbm->stc.strbuf_enabled) | |
487 | __schizo_check_stc_error_pbm(pbm, type); | |
488 | spin_unlock_irqrestore(&iommu->lock, flags); | |
489 | } | |
490 | ||
491 | static void schizo_check_iommu_error(struct pci_controller_info *p, | |
492 | enum schizo_error_type type) | |
493 | { | |
494 | schizo_check_iommu_error_pbm(&p->pbm_A, type); | |
495 | schizo_check_iommu_error_pbm(&p->pbm_B, type); | |
496 | } | |
497 | ||
498 | /* Uncorrectable ECC error status gathering. */ | |
499 | #define SCHIZO_UE_AFSR 0x10030UL | |
500 | #define SCHIZO_UE_AFAR 0x10038UL | |
501 | ||
502 | #define SCHIZO_UEAFSR_PPIO 0x8000000000000000UL /* Safari */ | |
503 | #define SCHIZO_UEAFSR_PDRD 0x4000000000000000UL /* Safari/Tomatillo */ | |
504 | #define SCHIZO_UEAFSR_PDWR 0x2000000000000000UL /* Safari */ | |
505 | #define SCHIZO_UEAFSR_SPIO 0x1000000000000000UL /* Safari */ | |
506 | #define SCHIZO_UEAFSR_SDMA 0x0800000000000000UL /* Safari/Tomatillo */ | |
507 | #define SCHIZO_UEAFSR_ERRPNDG 0x0300000000000000UL /* Safari */ | |
508 | #define SCHIZO_UEAFSR_BMSK 0x000003ff00000000UL /* Safari */ | |
509 | #define SCHIZO_UEAFSR_QOFF 0x00000000c0000000UL /* Safari/Tomatillo */ | |
510 | #define SCHIZO_UEAFSR_AID 0x000000001f000000UL /* Safari/Tomatillo */ | |
511 | #define SCHIZO_UEAFSR_PARTIAL 0x0000000000800000UL /* Safari */ | |
512 | #define SCHIZO_UEAFSR_OWNEDIN 0x0000000000400000UL /* Safari */ | |
513 | #define SCHIZO_UEAFSR_MTAGSYND 0x00000000000f0000UL /* Safari */ | |
514 | #define SCHIZO_UEAFSR_MTAG 0x000000000000e000UL /* Safari */ | |
515 | #define SCHIZO_UEAFSR_ECCSYND 0x00000000000001ffUL /* Safari */ | |
516 | ||
6d24c8dc | 517 | static irqreturn_t schizo_ue_intr(int irq, void *dev_id) |
1da177e4 LT |
518 | { |
519 | struct pci_controller_info *p = dev_id; | |
520 | unsigned long afsr_reg = p->pbm_B.controller_regs + SCHIZO_UE_AFSR; | |
521 | unsigned long afar_reg = p->pbm_B.controller_regs + SCHIZO_UE_AFAR; | |
522 | unsigned long afsr, afar, error_bits; | |
523 | int reported, limit; | |
524 | ||
525 | /* Latch uncorrectable error status. */ | |
526 | afar = schizo_read(afar_reg); | |
527 | ||
528 | /* If either of the error pending bits are set in the | |
529 | * AFSR, the error status is being actively updated by | |
530 | * the hardware and we must re-read to get a clean value. | |
531 | */ | |
532 | limit = 1000; | |
533 | do { | |
534 | afsr = schizo_read(afsr_reg); | |
535 | } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit); | |
536 | ||
537 | /* Clear the primary/secondary error status bits. */ | |
538 | error_bits = afsr & | |
539 | (SCHIZO_UEAFSR_PPIO | SCHIZO_UEAFSR_PDRD | SCHIZO_UEAFSR_PDWR | | |
540 | SCHIZO_UEAFSR_SPIO | SCHIZO_UEAFSR_SDMA); | |
541 | if (!error_bits) | |
542 | return IRQ_NONE; | |
543 | schizo_write(afsr_reg, error_bits); | |
544 | ||
545 | /* Log the error. */ | |
546 | printk("PCI%d: Uncorrectable Error, primary error type[%s]\n", | |
547 | p->index, | |
548 | (((error_bits & SCHIZO_UEAFSR_PPIO) ? | |
549 | "PIO" : | |
550 | ((error_bits & SCHIZO_UEAFSR_PDRD) ? | |
551 | "DMA Read" : | |
552 | ((error_bits & SCHIZO_UEAFSR_PDWR) ? | |
553 | "DMA Write" : "???"))))); | |
554 | printk("PCI%d: bytemask[%04lx] qword_offset[%lx] SAFARI_AID[%02lx]\n", | |
555 | p->index, | |
556 | (afsr & SCHIZO_UEAFSR_BMSK) >> 32UL, | |
557 | (afsr & SCHIZO_UEAFSR_QOFF) >> 30UL, | |
558 | (afsr & SCHIZO_UEAFSR_AID) >> 24UL); | |
559 | printk("PCI%d: partial[%d] owned_in[%d] mtag[%lx] mtag_synd[%lx] ecc_sync[%lx]\n", | |
560 | p->index, | |
561 | (afsr & SCHIZO_UEAFSR_PARTIAL) ? 1 : 0, | |
562 | (afsr & SCHIZO_UEAFSR_OWNEDIN) ? 1 : 0, | |
563 | (afsr & SCHIZO_UEAFSR_MTAG) >> 13UL, | |
564 | (afsr & SCHIZO_UEAFSR_MTAGSYND) >> 16UL, | |
565 | (afsr & SCHIZO_UEAFSR_ECCSYND) >> 0UL); | |
566 | printk("PCI%d: UE AFAR [%016lx]\n", p->index, afar); | |
567 | printk("PCI%d: UE Secondary errors [", p->index); | |
568 | reported = 0; | |
569 | if (afsr & SCHIZO_UEAFSR_SPIO) { | |
570 | reported++; | |
571 | printk("(PIO)"); | |
572 | } | |
573 | if (afsr & SCHIZO_UEAFSR_SDMA) { | |
574 | reported++; | |
575 | printk("(DMA)"); | |
576 | } | |
577 | if (!reported) | |
578 | printk("(none)"); | |
579 | printk("]\n"); | |
580 | ||
581 | /* Interrogate IOMMU for error status. */ | |
582 | schizo_check_iommu_error(p, UE_ERR); | |
583 | ||
1da177e4 LT |
584 | return IRQ_HANDLED; |
585 | } | |
586 | ||
587 | #define SCHIZO_CE_AFSR 0x10040UL | |
588 | #define SCHIZO_CE_AFAR 0x10048UL | |
589 | ||
590 | #define SCHIZO_CEAFSR_PPIO 0x8000000000000000UL | |
591 | #define SCHIZO_CEAFSR_PDRD 0x4000000000000000UL | |
592 | #define SCHIZO_CEAFSR_PDWR 0x2000000000000000UL | |
593 | #define SCHIZO_CEAFSR_SPIO 0x1000000000000000UL | |
594 | #define SCHIZO_CEAFSR_SDMA 0x0800000000000000UL | |
595 | #define SCHIZO_CEAFSR_ERRPNDG 0x0300000000000000UL | |
596 | #define SCHIZO_CEAFSR_BMSK 0x000003ff00000000UL | |
597 | #define SCHIZO_CEAFSR_QOFF 0x00000000c0000000UL | |
598 | #define SCHIZO_CEAFSR_AID 0x000000001f000000UL | |
599 | #define SCHIZO_CEAFSR_PARTIAL 0x0000000000800000UL | |
600 | #define SCHIZO_CEAFSR_OWNEDIN 0x0000000000400000UL | |
601 | #define SCHIZO_CEAFSR_MTAGSYND 0x00000000000f0000UL | |
602 | #define SCHIZO_CEAFSR_MTAG 0x000000000000e000UL | |
603 | #define SCHIZO_CEAFSR_ECCSYND 0x00000000000001ffUL | |
604 | ||
6d24c8dc | 605 | static irqreturn_t schizo_ce_intr(int irq, void *dev_id) |
1da177e4 LT |
606 | { |
607 | struct pci_controller_info *p = dev_id; | |
608 | unsigned long afsr_reg = p->pbm_B.controller_regs + SCHIZO_CE_AFSR; | |
609 | unsigned long afar_reg = p->pbm_B.controller_regs + SCHIZO_CE_AFAR; | |
610 | unsigned long afsr, afar, error_bits; | |
611 | int reported, limit; | |
612 | ||
613 | /* Latch error status. */ | |
614 | afar = schizo_read(afar_reg); | |
615 | ||
616 | /* If either of the error pending bits are set in the | |
617 | * AFSR, the error status is being actively updated by | |
618 | * the hardware and we must re-read to get a clean value. | |
619 | */ | |
620 | limit = 1000; | |
621 | do { | |
622 | afsr = schizo_read(afsr_reg); | |
623 | } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit); | |
624 | ||
625 | /* Clear primary/secondary error status bits. */ | |
626 | error_bits = afsr & | |
627 | (SCHIZO_CEAFSR_PPIO | SCHIZO_CEAFSR_PDRD | SCHIZO_CEAFSR_PDWR | | |
628 | SCHIZO_CEAFSR_SPIO | SCHIZO_CEAFSR_SDMA); | |
629 | if (!error_bits) | |
630 | return IRQ_NONE; | |
631 | schizo_write(afsr_reg, error_bits); | |
632 | ||
633 | /* Log the error. */ | |
634 | printk("PCI%d: Correctable Error, primary error type[%s]\n", | |
635 | p->index, | |
636 | (((error_bits & SCHIZO_CEAFSR_PPIO) ? | |
637 | "PIO" : | |
638 | ((error_bits & SCHIZO_CEAFSR_PDRD) ? | |
639 | "DMA Read" : | |
640 | ((error_bits & SCHIZO_CEAFSR_PDWR) ? | |
641 | "DMA Write" : "???"))))); | |
642 | ||
643 | /* XXX Use syndrome and afar to print out module string just like | |
644 | * XXX UDB CE trap handler does... -DaveM | |
645 | */ | |
646 | printk("PCI%d: bytemask[%04lx] qword_offset[%lx] SAFARI_AID[%02lx]\n", | |
647 | p->index, | |
648 | (afsr & SCHIZO_UEAFSR_BMSK) >> 32UL, | |
649 | (afsr & SCHIZO_UEAFSR_QOFF) >> 30UL, | |
650 | (afsr & SCHIZO_UEAFSR_AID) >> 24UL); | |
651 | printk("PCI%d: partial[%d] owned_in[%d] mtag[%lx] mtag_synd[%lx] ecc_sync[%lx]\n", | |
652 | p->index, | |
653 | (afsr & SCHIZO_UEAFSR_PARTIAL) ? 1 : 0, | |
654 | (afsr & SCHIZO_UEAFSR_OWNEDIN) ? 1 : 0, | |
655 | (afsr & SCHIZO_UEAFSR_MTAG) >> 13UL, | |
656 | (afsr & SCHIZO_UEAFSR_MTAGSYND) >> 16UL, | |
657 | (afsr & SCHIZO_UEAFSR_ECCSYND) >> 0UL); | |
658 | printk("PCI%d: CE AFAR [%016lx]\n", p->index, afar); | |
659 | printk("PCI%d: CE Secondary errors [", p->index); | |
660 | reported = 0; | |
661 | if (afsr & SCHIZO_CEAFSR_SPIO) { | |
662 | reported++; | |
663 | printk("(PIO)"); | |
664 | } | |
665 | if (afsr & SCHIZO_CEAFSR_SDMA) { | |
666 | reported++; | |
667 | printk("(DMA)"); | |
668 | } | |
669 | if (!reported) | |
670 | printk("(none)"); | |
671 | printk("]\n"); | |
672 | ||
1da177e4 LT |
673 | return IRQ_HANDLED; |
674 | } | |
675 | ||
676 | #define SCHIZO_PCI_AFSR 0x2010UL | |
677 | #define SCHIZO_PCI_AFAR 0x2018UL | |
678 | ||
679 | #define SCHIZO_PCIAFSR_PMA 0x8000000000000000UL /* Schizo/Tomatillo */ | |
680 | #define SCHIZO_PCIAFSR_PTA 0x4000000000000000UL /* Schizo/Tomatillo */ | |
681 | #define SCHIZO_PCIAFSR_PRTRY 0x2000000000000000UL /* Schizo/Tomatillo */ | |
682 | #define SCHIZO_PCIAFSR_PPERR 0x1000000000000000UL /* Schizo/Tomatillo */ | |
683 | #define SCHIZO_PCIAFSR_PTTO 0x0800000000000000UL /* Schizo/Tomatillo */ | |
684 | #define SCHIZO_PCIAFSR_PUNUS 0x0400000000000000UL /* Schizo */ | |
685 | #define SCHIZO_PCIAFSR_SMA 0x0200000000000000UL /* Schizo/Tomatillo */ | |
686 | #define SCHIZO_PCIAFSR_STA 0x0100000000000000UL /* Schizo/Tomatillo */ | |
687 | #define SCHIZO_PCIAFSR_SRTRY 0x0080000000000000UL /* Schizo/Tomatillo */ | |
688 | #define SCHIZO_PCIAFSR_SPERR 0x0040000000000000UL /* Schizo/Tomatillo */ | |
689 | #define SCHIZO_PCIAFSR_STTO 0x0020000000000000UL /* Schizo/Tomatillo */ | |
690 | #define SCHIZO_PCIAFSR_SUNUS 0x0010000000000000UL /* Schizo */ | |
691 | #define SCHIZO_PCIAFSR_BMSK 0x000003ff00000000UL /* Schizo/Tomatillo */ | |
692 | #define SCHIZO_PCIAFSR_BLK 0x0000000080000000UL /* Schizo/Tomatillo */ | |
693 | #define SCHIZO_PCIAFSR_CFG 0x0000000040000000UL /* Schizo/Tomatillo */ | |
694 | #define SCHIZO_PCIAFSR_MEM 0x0000000020000000UL /* Schizo/Tomatillo */ | |
695 | #define SCHIZO_PCIAFSR_IO 0x0000000010000000UL /* Schizo/Tomatillo */ | |
696 | ||
697 | #define SCHIZO_PCI_CTRL (0x2000UL) | |
698 | #define SCHIZO_PCICTRL_BUS_UNUS (1UL << 63UL) /* Safari */ | |
9fba62a5 | 699 | #define SCHIZO_PCICTRL_DTO_INT (1UL << 61UL) /* Tomatillo */ |
1da177e4 LT |
700 | #define SCHIZO_PCICTRL_ARB_PRIO (0x1ff << 52UL) /* Tomatillo */ |
701 | #define SCHIZO_PCICTRL_ESLCK (1UL << 51UL) /* Safari */ | |
702 | #define SCHIZO_PCICTRL_ERRSLOT (7UL << 48UL) /* Safari */ | |
703 | #define SCHIZO_PCICTRL_TTO_ERR (1UL << 38UL) /* Safari/Tomatillo */ | |
704 | #define SCHIZO_PCICTRL_RTRY_ERR (1UL << 37UL) /* Safari/Tomatillo */ | |
705 | #define SCHIZO_PCICTRL_DTO_ERR (1UL << 36UL) /* Safari/Tomatillo */ | |
706 | #define SCHIZO_PCICTRL_SBH_ERR (1UL << 35UL) /* Safari */ | |
707 | #define SCHIZO_PCICTRL_SERR (1UL << 34UL) /* Safari/Tomatillo */ | |
708 | #define SCHIZO_PCICTRL_PCISPD (1UL << 33UL) /* Safari */ | |
709 | #define SCHIZO_PCICTRL_MRM_PREF (1UL << 30UL) /* Tomatillo */ | |
710 | #define SCHIZO_PCICTRL_RDO_PREF (1UL << 29UL) /* Tomatillo */ | |
711 | #define SCHIZO_PCICTRL_RDL_PREF (1UL << 28UL) /* Tomatillo */ | |
712 | #define SCHIZO_PCICTRL_PTO (3UL << 24UL) /* Safari/Tomatillo */ | |
713 | #define SCHIZO_PCICTRL_PTO_SHIFT 24UL | |
714 | #define SCHIZO_PCICTRL_TRWSW (7UL << 21UL) /* Tomatillo */ | |
715 | #define SCHIZO_PCICTRL_F_TGT_A (1UL << 20UL) /* Tomatillo */ | |
716 | #define SCHIZO_PCICTRL_S_DTO_INT (1UL << 19UL) /* Safari */ | |
717 | #define SCHIZO_PCICTRL_F_TGT_RT (1UL << 19UL) /* Tomatillo */ | |
718 | #define SCHIZO_PCICTRL_SBH_INT (1UL << 18UL) /* Safari */ | |
719 | #define SCHIZO_PCICTRL_T_DTO_INT (1UL << 18UL) /* Tomatillo */ | |
720 | #define SCHIZO_PCICTRL_EEN (1UL << 17UL) /* Safari/Tomatillo */ | |
721 | #define SCHIZO_PCICTRL_PARK (1UL << 16UL) /* Safari/Tomatillo */ | |
722 | #define SCHIZO_PCICTRL_PCIRST (1UL << 8UL) /* Safari */ | |
723 | #define SCHIZO_PCICTRL_ARB_S (0x3fUL << 0UL) /* Safari */ | |
724 | #define SCHIZO_PCICTRL_ARB_T (0xffUL << 0UL) /* Tomatillo */ | |
725 | ||
726 | static irqreturn_t schizo_pcierr_intr_other(struct pci_pbm_info *pbm) | |
727 | { | |
728 | unsigned long csr_reg, csr, csr_error_bits; | |
729 | irqreturn_t ret = IRQ_NONE; | |
730 | u16 stat; | |
731 | ||
732 | csr_reg = pbm->pbm_regs + SCHIZO_PCI_CTRL; | |
733 | csr = schizo_read(csr_reg); | |
734 | csr_error_bits = | |
735 | csr & (SCHIZO_PCICTRL_BUS_UNUS | | |
736 | SCHIZO_PCICTRL_TTO_ERR | | |
737 | SCHIZO_PCICTRL_RTRY_ERR | | |
738 | SCHIZO_PCICTRL_DTO_ERR | | |
739 | SCHIZO_PCICTRL_SBH_ERR | | |
740 | SCHIZO_PCICTRL_SERR); | |
741 | if (csr_error_bits) { | |
742 | /* Clear the errors. */ | |
743 | schizo_write(csr_reg, csr); | |
744 | ||
745 | /* Log 'em. */ | |
746 | if (csr_error_bits & SCHIZO_PCICTRL_BUS_UNUS) | |
747 | printk("%s: Bus unusable error asserted.\n", | |
748 | pbm->name); | |
749 | if (csr_error_bits & SCHIZO_PCICTRL_TTO_ERR) | |
750 | printk("%s: PCI TRDY# timeout error asserted.\n", | |
751 | pbm->name); | |
752 | if (csr_error_bits & SCHIZO_PCICTRL_RTRY_ERR) | |
753 | printk("%s: PCI excessive retry error asserted.\n", | |
754 | pbm->name); | |
755 | if (csr_error_bits & SCHIZO_PCICTRL_DTO_ERR) | |
756 | printk("%s: PCI discard timeout error asserted.\n", | |
757 | pbm->name); | |
758 | if (csr_error_bits & SCHIZO_PCICTRL_SBH_ERR) | |
759 | printk("%s: PCI streaming byte hole error asserted.\n", | |
760 | pbm->name); | |
761 | if (csr_error_bits & SCHIZO_PCICTRL_SERR) | |
762 | printk("%s: PCI SERR signal asserted.\n", | |
763 | pbm->name); | |
764 | ret = IRQ_HANDLED; | |
765 | } | |
766 | pci_read_config_word(pbm->pci_bus->self, PCI_STATUS, &stat); | |
767 | if (stat & (PCI_STATUS_PARITY | | |
768 | PCI_STATUS_SIG_TARGET_ABORT | | |
769 | PCI_STATUS_REC_TARGET_ABORT | | |
770 | PCI_STATUS_REC_MASTER_ABORT | | |
771 | PCI_STATUS_SIG_SYSTEM_ERROR)) { | |
772 | printk("%s: PCI bus error, PCI_STATUS[%04x]\n", | |
773 | pbm->name, stat); | |
774 | pci_write_config_word(pbm->pci_bus->self, PCI_STATUS, 0xffff); | |
775 | ret = IRQ_HANDLED; | |
776 | } | |
777 | return ret; | |
778 | } | |
779 | ||
6d24c8dc | 780 | static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id) |
1da177e4 LT |
781 | { |
782 | struct pci_pbm_info *pbm = dev_id; | |
783 | struct pci_controller_info *p = pbm->parent; | |
784 | unsigned long afsr_reg, afar_reg, base; | |
785 | unsigned long afsr, afar, error_bits; | |
786 | int reported; | |
787 | ||
788 | base = pbm->pbm_regs; | |
789 | ||
790 | afsr_reg = base + SCHIZO_PCI_AFSR; | |
791 | afar_reg = base + SCHIZO_PCI_AFAR; | |
792 | ||
793 | /* Latch error status. */ | |
794 | afar = schizo_read(afar_reg); | |
795 | afsr = schizo_read(afsr_reg); | |
796 | ||
797 | /* Clear primary/secondary error status bits. */ | |
798 | error_bits = afsr & | |
799 | (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | | |
800 | SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | | |
801 | SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS | | |
802 | SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | | |
803 | SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | | |
804 | SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS); | |
805 | if (!error_bits) | |
806 | return schizo_pcierr_intr_other(pbm); | |
807 | schizo_write(afsr_reg, error_bits); | |
808 | ||
809 | /* Log the error. */ | |
810 | printk("%s: PCI Error, primary error type[%s]\n", | |
811 | pbm->name, | |
812 | (((error_bits & SCHIZO_PCIAFSR_PMA) ? | |
813 | "Master Abort" : | |
814 | ((error_bits & SCHIZO_PCIAFSR_PTA) ? | |
815 | "Target Abort" : | |
816 | ((error_bits & SCHIZO_PCIAFSR_PRTRY) ? | |
817 | "Excessive Retries" : | |
818 | ((error_bits & SCHIZO_PCIAFSR_PPERR) ? | |
819 | "Parity Error" : | |
820 | ((error_bits & SCHIZO_PCIAFSR_PTTO) ? | |
821 | "Timeout" : | |
822 | ((error_bits & SCHIZO_PCIAFSR_PUNUS) ? | |
823 | "Bus Unusable" : "???")))))))); | |
824 | printk("%s: bytemask[%04lx] was_block(%d) space(%s)\n", | |
825 | pbm->name, | |
826 | (afsr & SCHIZO_PCIAFSR_BMSK) >> 32UL, | |
827 | (afsr & SCHIZO_PCIAFSR_BLK) ? 1 : 0, | |
828 | ((afsr & SCHIZO_PCIAFSR_CFG) ? | |
829 | "Config" : | |
830 | ((afsr & SCHIZO_PCIAFSR_MEM) ? | |
831 | "Memory" : | |
832 | ((afsr & SCHIZO_PCIAFSR_IO) ? | |
833 | "I/O" : "???")))); | |
834 | printk("%s: PCI AFAR [%016lx]\n", | |
835 | pbm->name, afar); | |
836 | printk("%s: PCI Secondary errors [", | |
837 | pbm->name); | |
838 | reported = 0; | |
839 | if (afsr & SCHIZO_PCIAFSR_SMA) { | |
840 | reported++; | |
841 | printk("(Master Abort)"); | |
842 | } | |
843 | if (afsr & SCHIZO_PCIAFSR_STA) { | |
844 | reported++; | |
845 | printk("(Target Abort)"); | |
846 | } | |
847 | if (afsr & SCHIZO_PCIAFSR_SRTRY) { | |
848 | reported++; | |
849 | printk("(Excessive Retries)"); | |
850 | } | |
851 | if (afsr & SCHIZO_PCIAFSR_SPERR) { | |
852 | reported++; | |
853 | printk("(Parity Error)"); | |
854 | } | |
855 | if (afsr & SCHIZO_PCIAFSR_STTO) { | |
856 | reported++; | |
857 | printk("(Timeout)"); | |
858 | } | |
859 | if (afsr & SCHIZO_PCIAFSR_SUNUS) { | |
860 | reported++; | |
861 | printk("(Bus Unusable)"); | |
862 | } | |
863 | if (!reported) | |
864 | printk("(none)"); | |
865 | printk("]\n"); | |
866 | ||
867 | /* For the error types shown, scan PBM's PCI bus for devices | |
868 | * which have logged that error type. | |
869 | */ | |
870 | ||
871 | /* If we see a Target Abort, this could be the result of an | |
872 | * IOMMU translation error of some sort. It is extremely | |
873 | * useful to log this information as usually it indicates | |
874 | * a bug in the IOMMU support code or a PCI device driver. | |
875 | */ | |
876 | if (error_bits & (SCHIZO_PCIAFSR_PTA | SCHIZO_PCIAFSR_STA)) { | |
877 | schizo_check_iommu_error(p, PCI_ERR); | |
878 | pci_scan_for_target_abort(p, pbm, pbm->pci_bus); | |
879 | } | |
880 | if (error_bits & (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_SMA)) | |
881 | pci_scan_for_master_abort(p, pbm, pbm->pci_bus); | |
882 | ||
883 | /* For excessive retries, PSYCHO/PBM will abort the device | |
884 | * and there is no way to specifically check for excessive | |
885 | * retries in the config space status registers. So what | |
886 | * we hope is that we'll catch it via the master/target | |
887 | * abort events. | |
888 | */ | |
889 | ||
890 | if (error_bits & (SCHIZO_PCIAFSR_PPERR | SCHIZO_PCIAFSR_SPERR)) | |
891 | pci_scan_for_parity_error(p, pbm, pbm->pci_bus); | |
892 | ||
1da177e4 LT |
893 | return IRQ_HANDLED; |
894 | } | |
895 | ||
896 | #define SCHIZO_SAFARI_ERRLOG 0x10018UL | |
897 | ||
898 | #define SAFARI_ERRLOG_ERROUT 0x8000000000000000UL | |
899 | ||
900 | #define BUS_ERROR_BADCMD 0x4000000000000000UL /* Schizo/Tomatillo */ | |
901 | #define BUS_ERROR_SSMDIS 0x2000000000000000UL /* Safari */ | |
902 | #define BUS_ERROR_BADMA 0x1000000000000000UL /* Safari */ | |
903 | #define BUS_ERROR_BADMB 0x0800000000000000UL /* Safari */ | |
904 | #define BUS_ERROR_BADMC 0x0400000000000000UL /* Safari */ | |
905 | #define BUS_ERROR_SNOOP_GR 0x0000000000200000UL /* Tomatillo */ | |
906 | #define BUS_ERROR_SNOOP_PCI 0x0000000000100000UL /* Tomatillo */ | |
907 | #define BUS_ERROR_SNOOP_RD 0x0000000000080000UL /* Tomatillo */ | |
908 | #define BUS_ERROR_SNOOP_RDS 0x0000000000020000UL /* Tomatillo */ | |
909 | #define BUS_ERROR_SNOOP_RDSA 0x0000000000010000UL /* Tomatillo */ | |
910 | #define BUS_ERROR_SNOOP_OWN 0x0000000000008000UL /* Tomatillo */ | |
911 | #define BUS_ERROR_SNOOP_RDO 0x0000000000004000UL /* Tomatillo */ | |
912 | #define BUS_ERROR_CPU1PS 0x0000000000002000UL /* Safari */ | |
913 | #define BUS_ERROR_WDATA_PERR 0x0000000000002000UL /* Tomatillo */ | |
914 | #define BUS_ERROR_CPU1PB 0x0000000000001000UL /* Safari */ | |
915 | #define BUS_ERROR_CTRL_PERR 0x0000000000001000UL /* Tomatillo */ | |
916 | #define BUS_ERROR_CPU0PS 0x0000000000000800UL /* Safari */ | |
917 | #define BUS_ERROR_SNOOP_ERR 0x0000000000000800UL /* Tomatillo */ | |
918 | #define BUS_ERROR_CPU0PB 0x0000000000000400UL /* Safari */ | |
919 | #define BUS_ERROR_JBUS_ILL_B 0x0000000000000400UL /* Tomatillo */ | |
920 | #define BUS_ERROR_CIQTO 0x0000000000000200UL /* Safari */ | |
921 | #define BUS_ERROR_LPQTO 0x0000000000000100UL /* Safari */ | |
922 | #define BUS_ERROR_JBUS_ILL_C 0x0000000000000100UL /* Tomatillo */ | |
923 | #define BUS_ERROR_SFPQTO 0x0000000000000080UL /* Safari */ | |
924 | #define BUS_ERROR_UFPQTO 0x0000000000000040UL /* Safari */ | |
925 | #define BUS_ERROR_RD_PERR 0x0000000000000040UL /* Tomatillo */ | |
926 | #define BUS_ERROR_APERR 0x0000000000000020UL /* Safari/Tomatillo */ | |
927 | #define BUS_ERROR_UNMAP 0x0000000000000010UL /* Safari/Tomatillo */ | |
928 | #define BUS_ERROR_BUSERR 0x0000000000000004UL /* Safari/Tomatillo */ | |
929 | #define BUS_ERROR_TIMEOUT 0x0000000000000002UL /* Safari/Tomatillo */ | |
930 | #define BUS_ERROR_ILL 0x0000000000000001UL /* Safari */ | |
931 | ||
932 | /* We only expect UNMAP errors here. The rest of the Safari errors | |
933 | * are marked fatal and thus cause a system reset. | |
934 | */ | |
6d24c8dc | 935 | static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id) |
1da177e4 LT |
936 | { |
937 | struct pci_controller_info *p = dev_id; | |
938 | u64 errlog; | |
939 | ||
940 | errlog = schizo_read(p->pbm_B.controller_regs + SCHIZO_SAFARI_ERRLOG); | |
941 | schizo_write(p->pbm_B.controller_regs + SCHIZO_SAFARI_ERRLOG, | |
942 | errlog & ~(SAFARI_ERRLOG_ERROUT)); | |
943 | ||
944 | if (!(errlog & BUS_ERROR_UNMAP)) { | |
945 | printk("PCI%d: Unexpected Safari/JBUS error interrupt, errlog[%016lx]\n", | |
946 | p->index, errlog); | |
947 | ||
1da177e4 LT |
948 | return IRQ_HANDLED; |
949 | } | |
950 | ||
951 | printk("PCI%d: Safari/JBUS interrupt, UNMAPPED error, interrogating IOMMUs.\n", | |
952 | p->index); | |
953 | schizo_check_iommu_error(p, SAFARI_ERR); | |
954 | ||
1da177e4 LT |
955 | return IRQ_HANDLED; |
956 | } | |
957 | ||
958 | /* Nearly identical to PSYCHO equivalents... */ | |
959 | #define SCHIZO_ECC_CTRL 0x10020UL | |
960 | #define SCHIZO_ECCCTRL_EE 0x8000000000000000UL /* Enable ECC Checking */ | |
961 | #define SCHIZO_ECCCTRL_UE 0x4000000000000000UL /* Enable UE Interrupts */ | |
962 | #define SCHIZO_ECCCTRL_CE 0x2000000000000000UL /* Enable CE INterrupts */ | |
963 | ||
964 | #define SCHIZO_SAFARI_ERRCTRL 0x10008UL | |
965 | #define SCHIZO_SAFERRCTRL_EN 0x8000000000000000UL | |
966 | #define SCHIZO_SAFARI_IRQCTRL 0x10010UL | |
967 | #define SCHIZO_SAFIRQCTRL_EN 0x8000000000000000UL | |
968 | ||
969 | /* How the Tomatillo IRQs are routed around is pure guesswork here. | |
970 | * | |
971 | * All the Tomatillo devices I see in prtconf dumps seem to have only | |
972 | * a single PCI bus unit attached to it. It would seem they are seperate | |
973 | * devices because their PortID (ie. JBUS ID) values are all different | |
974 | * and thus the registers are mapped to totally different locations. | |
975 | * | |
976 | * However, two Tomatillo's look "similar" in that the only difference | |
977 | * in their PortID is the lowest bit. | |
978 | * | |
979 | * So if we were to ignore this lower bit, it certainly looks like two | |
980 | * PCI bus units of the same Tomatillo. I still have not really | |
981 | * figured this out... | |
982 | */ | |
085ae41f | 983 | static void tomatillo_register_error_handlers(struct pci_controller_info *p) |
1da177e4 LT |
984 | { |
985 | struct pci_pbm_info *pbm; | |
2b1e5978 | 986 | struct of_device *op; |
1da177e4 LT |
987 | u64 tmp, err_mask, err_no_mask; |
988 | ||
2b1e5978 DM |
989 | /* Tomatillo IRQ property layout is: |
990 | * 0: PCIERR | |
991 | * 1: UE ERR | |
992 | * 2: CE ERR | |
993 | * 3: SERR | |
994 | * 4: POWER FAIL? | |
995 | */ | |
996 | ||
1da177e4 | 997 | pbm = pbm_for_ino(p, SCHIZO_UE_INO); |
2b1e5978 DM |
998 | op = of_find_device_by_node(pbm->prom_node); |
999 | if (op) | |
d356d7f4 | 1000 | request_irq(op->irqs[1], schizo_ue_intr, IRQF_SHARED, |
2b1e5978 | 1001 | "TOMATILLO_UE", p); |
1da177e4 LT |
1002 | |
1003 | pbm = pbm_for_ino(p, SCHIZO_CE_INO); | |
2b1e5978 DM |
1004 | op = of_find_device_by_node(pbm->prom_node); |
1005 | if (op) | |
d356d7f4 | 1006 | request_irq(op->irqs[2], schizo_ce_intr, IRQF_SHARED, |
2b1e5978 | 1007 | "TOMATILLO CE", p); |
1da177e4 LT |
1008 | |
1009 | pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO); | |
2b1e5978 DM |
1010 | op = of_find_device_by_node(pbm->prom_node); |
1011 | if (op) | |
d356d7f4 | 1012 | request_irq(op->irqs[0], schizo_pcierr_intr, IRQF_SHARED, |
2b1e5978 DM |
1013 | "TOMATILLO PCIERR-A", pbm); |
1014 | ||
1da177e4 LT |
1015 | |
1016 | pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO); | |
2b1e5978 DM |
1017 | op = of_find_device_by_node(pbm->prom_node); |
1018 | if (op) | |
d356d7f4 | 1019 | request_irq(op->irqs[0], schizo_pcierr_intr, IRQF_SHARED, |
2b1e5978 | 1020 | "TOMATILLO PCIERR-B", pbm); |
1da177e4 LT |
1021 | |
1022 | pbm = pbm_for_ino(p, SCHIZO_SERR_INO); | |
2b1e5978 DM |
1023 | op = of_find_device_by_node(pbm->prom_node); |
1024 | if (op) | |
d356d7f4 | 1025 | request_irq(op->irqs[3], schizo_safarierr_intr, IRQF_SHARED, |
2b1e5978 | 1026 | "TOMATILLO SERR", p); |
1da177e4 LT |
1027 | |
1028 | /* Enable UE and CE interrupts for controller. */ | |
1029 | schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL, | |
1030 | (SCHIZO_ECCCTRL_EE | | |
1031 | SCHIZO_ECCCTRL_UE | | |
1032 | SCHIZO_ECCCTRL_CE)); | |
1033 | ||
1034 | schizo_write(p->pbm_B.controller_regs + SCHIZO_ECC_CTRL, | |
1035 | (SCHIZO_ECCCTRL_EE | | |
1036 | SCHIZO_ECCCTRL_UE | | |
1037 | SCHIZO_ECCCTRL_CE)); | |
1038 | ||
1039 | /* Enable PCI Error interrupts and clear error | |
1040 | * bits. | |
1041 | */ | |
1042 | err_mask = (SCHIZO_PCICTRL_BUS_UNUS | | |
1043 | SCHIZO_PCICTRL_TTO_ERR | | |
1044 | SCHIZO_PCICTRL_RTRY_ERR | | |
1045 | SCHIZO_PCICTRL_SERR | | |
1046 | SCHIZO_PCICTRL_EEN); | |
1047 | ||
1048 | err_no_mask = SCHIZO_PCICTRL_DTO_ERR; | |
1049 | ||
1050 | tmp = schizo_read(p->pbm_A.pbm_regs + SCHIZO_PCI_CTRL); | |
1051 | tmp |= err_mask; | |
1052 | tmp &= ~err_no_mask; | |
1053 | schizo_write(p->pbm_A.pbm_regs + SCHIZO_PCI_CTRL, tmp); | |
1054 | ||
1055 | tmp = schizo_read(p->pbm_B.pbm_regs + SCHIZO_PCI_CTRL); | |
1056 | tmp |= err_mask; | |
1057 | tmp &= ~err_no_mask; | |
1058 | schizo_write(p->pbm_B.pbm_regs + SCHIZO_PCI_CTRL, tmp); | |
1059 | ||
1060 | err_mask = (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | | |
1061 | SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | | |
1062 | SCHIZO_PCIAFSR_PTTO | | |
1063 | SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | | |
1064 | SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | | |
1065 | SCHIZO_PCIAFSR_STTO); | |
1066 | ||
1067 | schizo_write(p->pbm_A.pbm_regs + SCHIZO_PCI_AFSR, err_mask); | |
1068 | schizo_write(p->pbm_B.pbm_regs + SCHIZO_PCI_AFSR, err_mask); | |
1069 | ||
1070 | err_mask = (BUS_ERROR_BADCMD | BUS_ERROR_SNOOP_GR | | |
1071 | BUS_ERROR_SNOOP_PCI | BUS_ERROR_SNOOP_RD | | |
1072 | BUS_ERROR_SNOOP_RDS | BUS_ERROR_SNOOP_RDSA | | |
1073 | BUS_ERROR_SNOOP_OWN | BUS_ERROR_SNOOP_RDO | | |
1074 | BUS_ERROR_WDATA_PERR | BUS_ERROR_CTRL_PERR | | |
1075 | BUS_ERROR_SNOOP_ERR | BUS_ERROR_JBUS_ILL_B | | |
1076 | BUS_ERROR_JBUS_ILL_C | BUS_ERROR_RD_PERR | | |
1077 | BUS_ERROR_APERR | BUS_ERROR_UNMAP | | |
1078 | BUS_ERROR_BUSERR | BUS_ERROR_TIMEOUT); | |
1079 | ||
1080 | schizo_write(p->pbm_A.controller_regs + SCHIZO_SAFARI_ERRCTRL, | |
1081 | (SCHIZO_SAFERRCTRL_EN | err_mask)); | |
1082 | schizo_write(p->pbm_B.controller_regs + SCHIZO_SAFARI_ERRCTRL, | |
1083 | (SCHIZO_SAFERRCTRL_EN | err_mask)); | |
1084 | ||
1085 | schizo_write(p->pbm_A.controller_regs + SCHIZO_SAFARI_IRQCTRL, | |
1086 | (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP))); | |
1087 | schizo_write(p->pbm_B.controller_regs + SCHIZO_SAFARI_IRQCTRL, | |
1088 | (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP))); | |
1089 | } | |
1090 | ||
085ae41f | 1091 | static void schizo_register_error_handlers(struct pci_controller_info *p) |
1da177e4 LT |
1092 | { |
1093 | struct pci_pbm_info *pbm; | |
2b1e5978 | 1094 | struct of_device *op; |
1da177e4 LT |
1095 | u64 tmp, err_mask, err_no_mask; |
1096 | ||
2b1e5978 DM |
1097 | /* Schizo IRQ property layout is: |
1098 | * 0: PCIERR | |
1099 | * 1: UE ERR | |
1100 | * 2: CE ERR | |
1101 | * 3: SERR | |
1102 | * 4: POWER FAIL? | |
1103 | */ | |
1104 | ||
1da177e4 | 1105 | pbm = pbm_for_ino(p, SCHIZO_UE_INO); |
2b1e5978 DM |
1106 | op = of_find_device_by_node(pbm->prom_node); |
1107 | if (op) | |
d356d7f4 | 1108 | request_irq(op->irqs[1], schizo_ue_intr, IRQF_SHARED, |
2b1e5978 | 1109 | "SCHIZO_UE", p); |
1da177e4 LT |
1110 | |
1111 | pbm = pbm_for_ino(p, SCHIZO_CE_INO); | |
2b1e5978 DM |
1112 | op = of_find_device_by_node(pbm->prom_node); |
1113 | if (op) | |
d356d7f4 | 1114 | request_irq(op->irqs[2], schizo_ce_intr, IRQF_SHARED, |
2b1e5978 | 1115 | "SCHIZO CE", p); |
1da177e4 LT |
1116 | |
1117 | pbm = pbm_for_ino(p, SCHIZO_PCIERR_A_INO); | |
2b1e5978 DM |
1118 | op = of_find_device_by_node(pbm->prom_node); |
1119 | if (op) | |
d356d7f4 | 1120 | request_irq(op->irqs[0], schizo_pcierr_intr, IRQF_SHARED, |
2b1e5978 DM |
1121 | "SCHIZO PCIERR-A", pbm); |
1122 | ||
1da177e4 LT |
1123 | |
1124 | pbm = pbm_for_ino(p, SCHIZO_PCIERR_B_INO); | |
2b1e5978 DM |
1125 | op = of_find_device_by_node(pbm->prom_node); |
1126 | if (op) | |
d356d7f4 | 1127 | request_irq(op->irqs[0], schizo_pcierr_intr, IRQF_SHARED, |
2b1e5978 | 1128 | "SCHIZO PCIERR-B", pbm); |
1da177e4 LT |
1129 | |
1130 | pbm = pbm_for_ino(p, SCHIZO_SERR_INO); | |
2b1e5978 DM |
1131 | op = of_find_device_by_node(pbm->prom_node); |
1132 | if (op) | |
d356d7f4 | 1133 | request_irq(op->irqs[3], schizo_safarierr_intr, IRQF_SHARED, |
2b1e5978 | 1134 | "SCHIZO SERR", p); |
1da177e4 LT |
1135 | |
1136 | /* Enable UE and CE interrupts for controller. */ | |
1137 | schizo_write(p->pbm_A.controller_regs + SCHIZO_ECC_CTRL, | |
1138 | (SCHIZO_ECCCTRL_EE | | |
1139 | SCHIZO_ECCCTRL_UE | | |
1140 | SCHIZO_ECCCTRL_CE)); | |
1141 | ||
1142 | err_mask = (SCHIZO_PCICTRL_BUS_UNUS | | |
1143 | SCHIZO_PCICTRL_ESLCK | | |
1144 | SCHIZO_PCICTRL_TTO_ERR | | |
1145 | SCHIZO_PCICTRL_RTRY_ERR | | |
1146 | SCHIZO_PCICTRL_SBH_ERR | | |
1147 | SCHIZO_PCICTRL_SERR | | |
1148 | SCHIZO_PCICTRL_EEN); | |
1149 | ||
1150 | err_no_mask = (SCHIZO_PCICTRL_DTO_ERR | | |
1151 | SCHIZO_PCICTRL_SBH_INT); | |
1152 | ||
1153 | /* Enable PCI Error interrupts and clear error | |
1154 | * bits for each PBM. | |
1155 | */ | |
1156 | tmp = schizo_read(p->pbm_A.pbm_regs + SCHIZO_PCI_CTRL); | |
1157 | tmp |= err_mask; | |
1158 | tmp &= ~err_no_mask; | |
1159 | schizo_write(p->pbm_A.pbm_regs + SCHIZO_PCI_CTRL, tmp); | |
1160 | ||
1161 | schizo_write(p->pbm_A.pbm_regs + SCHIZO_PCI_AFSR, | |
1162 | (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | | |
1163 | SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | | |
1164 | SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS | | |
1165 | SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | | |
1166 | SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | | |
1167 | SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS)); | |
1168 | ||
1169 | tmp = schizo_read(p->pbm_B.pbm_regs + SCHIZO_PCI_CTRL); | |
1170 | tmp |= err_mask; | |
1171 | tmp &= ~err_no_mask; | |
1172 | schizo_write(p->pbm_B.pbm_regs + SCHIZO_PCI_CTRL, tmp); | |
1173 | ||
1174 | schizo_write(p->pbm_B.pbm_regs + SCHIZO_PCI_AFSR, | |
1175 | (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | | |
1176 | SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | | |
1177 | SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS | | |
1178 | SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | | |
1179 | SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | | |
1180 | SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS)); | |
1181 | ||
1182 | /* Make all Safari error conditions fatal except unmapped | |
1183 | * errors which we make generate interrupts. | |
1184 | */ | |
1185 | err_mask = (BUS_ERROR_BADCMD | BUS_ERROR_SSMDIS | | |
1186 | BUS_ERROR_BADMA | BUS_ERROR_BADMB | | |
1187 | BUS_ERROR_BADMC | | |
1188 | BUS_ERROR_CPU1PS | BUS_ERROR_CPU1PB | | |
1189 | BUS_ERROR_CPU0PS | BUS_ERROR_CPU0PB | | |
1190 | BUS_ERROR_CIQTO | | |
1191 | BUS_ERROR_LPQTO | BUS_ERROR_SFPQTO | | |
1192 | BUS_ERROR_UFPQTO | BUS_ERROR_APERR | | |
1193 | BUS_ERROR_BUSERR | BUS_ERROR_TIMEOUT | | |
1194 | BUS_ERROR_ILL); | |
1195 | #if 1 | |
1196 | /* XXX Something wrong with some Excalibur systems | |
1197 | * XXX Sun is shipping. The behavior on a 2-cpu | |
1198 | * XXX machine is that both CPU1 parity error bits | |
1199 | * XXX are set and are immediately set again when | |
1200 | * XXX their error status bits are cleared. Just | |
1201 | * XXX ignore them for now. -DaveM | |
1202 | */ | |
1203 | err_mask &= ~(BUS_ERROR_CPU1PS | BUS_ERROR_CPU1PB | | |
1204 | BUS_ERROR_CPU0PS | BUS_ERROR_CPU0PB); | |
1205 | #endif | |
1206 | ||
1207 | schizo_write(p->pbm_A.controller_regs + SCHIZO_SAFARI_ERRCTRL, | |
1208 | (SCHIZO_SAFERRCTRL_EN | err_mask)); | |
1209 | ||
1210 | schizo_write(p->pbm_A.controller_regs + SCHIZO_SAFARI_IRQCTRL, | |
1211 | (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP))); | |
1212 | } | |
1213 | ||
085ae41f | 1214 | static void pbm_config_busmastering(struct pci_pbm_info *pbm) |
1da177e4 LT |
1215 | { |
1216 | u8 *addr; | |
1217 | ||
1218 | /* Set cache-line size to 64 bytes, this is actually | |
1219 | * a nop but I do it for completeness. | |
1220 | */ | |
1221 | addr = schizo_pci_config_mkaddr(pbm, pbm->pci_first_busno, | |
1222 | 0, PCI_CACHE_LINE_SIZE); | |
1223 | pci_config_write8(addr, 64 / sizeof(u32)); | |
1224 | ||
1225 | /* Set PBM latency timer to 64 PCI clocks. */ | |
1226 | addr = schizo_pci_config_mkaddr(pbm, pbm->pci_first_busno, | |
1227 | 0, PCI_LATENCY_TIMER); | |
1228 | pci_config_write8(addr, 64); | |
1229 | } | |
1230 | ||
bc606f3c | 1231 | static void schizo_scan_bus(struct pci_controller_info *p) |
1da177e4 | 1232 | { |
1da177e4 LT |
1233 | pbm_config_busmastering(&p->pbm_B); |
1234 | p->pbm_B.is_66mhz_capable = | |
e87dc350 DM |
1235 | (of_find_property(p->pbm_B.prom_node, "66mhz-capable", NULL) |
1236 | != NULL); | |
1da177e4 LT |
1237 | pbm_config_busmastering(&p->pbm_A); |
1238 | p->pbm_A.is_66mhz_capable = | |
e87dc350 DM |
1239 | (of_find_property(p->pbm_A.prom_node, "66mhz-capable", NULL) |
1240 | != NULL); | |
bc606f3c DM |
1241 | |
1242 | p->pbm_B.pci_bus = pci_scan_one_pbm(&p->pbm_B); | |
1243 | p->pbm_A.pci_bus = pci_scan_one_pbm(&p->pbm_A); | |
1da177e4 LT |
1244 | |
1245 | /* After the PCI bus scan is complete, we can register | |
1246 | * the error interrupt handlers. | |
1247 | */ | |
bc606f3c | 1248 | if (p->pbm_B.chip_type == PBM_CHIP_TYPE_TOMATILLO) |
1da177e4 LT |
1249 | tomatillo_register_error_handlers(p); |
1250 | else | |
1251 | schizo_register_error_handlers(p); | |
1252 | } | |
1253 | ||
085ae41f | 1254 | static void schizo_base_address_update(struct pci_dev *pdev, int resource) |
1da177e4 | 1255 | { |
a2fb23af | 1256 | struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; |
1da177e4 LT |
1257 | struct resource *res, *root; |
1258 | u32 reg; | |
1259 | int where, size, is_64bit; | |
1260 | ||
1261 | res = &pdev->resource[resource]; | |
1262 | if (resource < 6) { | |
1263 | where = PCI_BASE_ADDRESS_0 + (resource * 4); | |
1264 | } else if (resource == PCI_ROM_RESOURCE) { | |
1265 | where = pdev->rom_base_reg; | |
1266 | } else { | |
1267 | /* Somebody might have asked allocation of a non-standard resource */ | |
1268 | return; | |
1269 | } | |
1270 | ||
1271 | is_64bit = 0; | |
1272 | if (res->flags & IORESOURCE_IO) | |
1273 | root = &pbm->io_space; | |
1274 | else { | |
1275 | root = &pbm->mem_space; | |
1276 | if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK) | |
1277 | == PCI_BASE_ADDRESS_MEM_TYPE_64) | |
1278 | is_64bit = 1; | |
1279 | } | |
1280 | ||
1281 | size = res->end - res->start; | |
1282 | pci_read_config_dword(pdev, where, ®); | |
1283 | reg = ((reg & size) | | |
1284 | (((u32)(res->start - root->start)) & ~size)); | |
1285 | if (resource == PCI_ROM_RESOURCE) { | |
1286 | reg |= PCI_ROM_ADDRESS_ENABLE; | |
1287 | res->flags |= IORESOURCE_ROM_ENABLE; | |
1288 | } | |
1289 | pci_write_config_dword(pdev, where, reg); | |
1290 | ||
1291 | /* This knows that the upper 32-bits of the address | |
1292 | * must be zero. Our PCI common layer enforces this. | |
1293 | */ | |
1294 | if (is_64bit) | |
1295 | pci_write_config_dword(pdev, where + 4, 0); | |
1296 | } | |
1297 | ||
085ae41f DM |
1298 | static void schizo_resource_adjust(struct pci_dev *pdev, |
1299 | struct resource *res, | |
1300 | struct resource *root) | |
1da177e4 LT |
1301 | { |
1302 | res->start += root->start; | |
1303 | res->end += root->start; | |
1304 | } | |
1305 | ||
1da177e4 LT |
1306 | #define SCHIZO_STRBUF_CONTROL (0x02800UL) |
1307 | #define SCHIZO_STRBUF_FLUSH (0x02808UL) | |
1308 | #define SCHIZO_STRBUF_FSYNC (0x02810UL) | |
1309 | #define SCHIZO_STRBUF_CTXFLUSH (0x02818UL) | |
1310 | #define SCHIZO_STRBUF_CTXMATCH (0x10000UL) | |
1311 | ||
1312 | static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm) | |
1313 | { | |
1314 | unsigned long base = pbm->pbm_regs; | |
1315 | u64 control; | |
1316 | ||
1317 | if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) { | |
1318 | /* TOMATILLO lacks streaming cache. */ | |
1319 | return; | |
1320 | } | |
1321 | ||
1322 | /* SCHIZO has context flushing. */ | |
1323 | pbm->stc.strbuf_control = base + SCHIZO_STRBUF_CONTROL; | |
1324 | pbm->stc.strbuf_pflush = base + SCHIZO_STRBUF_FLUSH; | |
1325 | pbm->stc.strbuf_fsync = base + SCHIZO_STRBUF_FSYNC; | |
1326 | pbm->stc.strbuf_ctxflush = base + SCHIZO_STRBUF_CTXFLUSH; | |
1327 | pbm->stc.strbuf_ctxmatch_base = base + SCHIZO_STRBUF_CTXMATCH; | |
1328 | ||
1329 | pbm->stc.strbuf_flushflag = (volatile unsigned long *) | |
1330 | ((((unsigned long)&pbm->stc.__flushflag_buf[0]) | |
1331 | + 63UL) | |
1332 | & ~63UL); | |
1333 | pbm->stc.strbuf_flushflag_pa = (unsigned long) | |
1334 | __pa(pbm->stc.strbuf_flushflag); | |
1335 | ||
1336 | /* Turn off LRU locking and diag mode, enable the | |
1337 | * streaming buffer and leave the rerun-disable | |
1338 | * setting however OBP set it. | |
1339 | */ | |
1340 | control = schizo_read(pbm->stc.strbuf_control); | |
1341 | control &= ~(SCHIZO_STRBUF_CTRL_LPTR | | |
1342 | SCHIZO_STRBUF_CTRL_LENAB | | |
1343 | SCHIZO_STRBUF_CTRL_DENAB); | |
1344 | control |= SCHIZO_STRBUF_CTRL_ENAB; | |
1345 | schizo_write(pbm->stc.strbuf_control, control); | |
1346 | ||
1347 | pbm->stc.strbuf_enabled = 1; | |
1348 | } | |
1349 | ||
1350 | #define SCHIZO_IOMMU_CONTROL (0x00200UL) | |
1351 | #define SCHIZO_IOMMU_TSBBASE (0x00208UL) | |
1352 | #define SCHIZO_IOMMU_FLUSH (0x00210UL) | |
1353 | #define SCHIZO_IOMMU_CTXFLUSH (0x00218UL) | |
1354 | ||
1355 | static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm) | |
1356 | { | |
1357 | struct pci_iommu *iommu = pbm->iommu; | |
51e85136 | 1358 | unsigned long i, tagbase, database; |
e87dc350 | 1359 | struct property *prop; |
1da177e4 LT |
1360 | u32 vdma[2], dma_mask; |
1361 | u64 control; | |
e87dc350 | 1362 | int tsbsize; |
1da177e4 | 1363 | |
e87dc350 DM |
1364 | prop = of_find_property(pbm->prom_node, "virtual-dma", NULL); |
1365 | if (prop) { | |
1366 | u32 *val = prop->value; | |
1367 | ||
1368 | vdma[0] = val[0]; | |
1369 | vdma[1] = val[1]; | |
1370 | } else { | |
1da177e4 LT |
1371 | /* No property, use default values. */ |
1372 | vdma[0] = 0xc0000000; | |
1373 | vdma[1] = 0x40000000; | |
1374 | } | |
1375 | ||
1376 | dma_mask = vdma[0]; | |
1377 | switch (vdma[1]) { | |
1378 | case 0x20000000: | |
1379 | dma_mask |= 0x1fffffff; | |
1380 | tsbsize = 64; | |
1381 | break; | |
1382 | ||
1383 | case 0x40000000: | |
1384 | dma_mask |= 0x3fffffff; | |
1385 | tsbsize = 128; | |
1386 | break; | |
1387 | ||
1388 | case 0x80000000: | |
1389 | dma_mask |= 0x7fffffff; | |
1390 | tsbsize = 128; | |
1391 | break; | |
1392 | ||
1393 | default: | |
1394 | prom_printf("SCHIZO: strange virtual-dma size.\n"); | |
1395 | prom_halt(); | |
1396 | }; | |
1397 | ||
1da177e4 LT |
1398 | /* Register addresses, SCHIZO has iommu ctx flushing. */ |
1399 | iommu->iommu_control = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL; | |
1400 | iommu->iommu_tsbbase = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE; | |
1401 | iommu->iommu_flush = pbm->pbm_regs + SCHIZO_IOMMU_FLUSH; | |
1402 | iommu->iommu_ctxflush = pbm->pbm_regs + SCHIZO_IOMMU_CTXFLUSH; | |
1403 | ||
1404 | /* We use the main control/status register of SCHIZO as the write | |
1405 | * completion register. | |
1406 | */ | |
1407 | iommu->write_complete_reg = pbm->controller_regs + 0x10000UL; | |
1408 | ||
1409 | /* | |
1410 | * Invalidate TLB Entries. | |
1411 | */ | |
1412 | control = schizo_read(iommu->iommu_control); | |
1413 | control |= SCHIZO_IOMMU_CTRL_DENAB; | |
1414 | schizo_write(iommu->iommu_control, control); | |
1415 | ||
1416 | tagbase = SCHIZO_IOMMU_TAG, database = SCHIZO_IOMMU_DATA; | |
1417 | ||
1418 | for(i = 0; i < 16; i++) { | |
1419 | schizo_write(pbm->pbm_regs + tagbase + (i * 8UL), 0); | |
1420 | schizo_write(pbm->pbm_regs + database + (i * 8UL), 0); | |
1421 | } | |
1422 | ||
1423 | /* Leave diag mode enabled for full-flushing done | |
1424 | * in pci_iommu.c | |
1425 | */ | |
51e85136 | 1426 | pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask); |
1da177e4 | 1427 | |
51e85136 | 1428 | schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table)); |
1da177e4 LT |
1429 | |
1430 | control = schizo_read(iommu->iommu_control); | |
1431 | control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ); | |
1432 | switch (tsbsize) { | |
1433 | case 64: | |
1434 | control |= SCHIZO_IOMMU_TSBSZ_64K; | |
1435 | break; | |
1436 | case 128: | |
1437 | control |= SCHIZO_IOMMU_TSBSZ_128K; | |
1438 | break; | |
1439 | }; | |
1440 | ||
1441 | control |= SCHIZO_IOMMU_CTRL_ENAB; | |
1442 | schizo_write(iommu->iommu_control, control); | |
1443 | } | |
1444 | ||
1445 | #define SCHIZO_PCI_IRQ_RETRY (0x1a00UL) | |
1446 | #define SCHIZO_IRQ_RETRY_INF 0xffUL | |
1447 | ||
1448 | #define SCHIZO_PCI_DIAG (0x2020UL) | |
1449 | #define SCHIZO_PCIDIAG_D_BADECC (1UL << 10UL) /* Disable BAD ECC errors (Schizo) */ | |
1450 | #define SCHIZO_PCIDIAG_D_BYPASS (1UL << 9UL) /* Disable MMU bypass mode (Schizo/Tomatillo) */ | |
1451 | #define SCHIZO_PCIDIAG_D_TTO (1UL << 8UL) /* Disable TTO errors (Schizo/Tomatillo) */ | |
1452 | #define SCHIZO_PCIDIAG_D_RTRYARB (1UL << 7UL) /* Disable retry arbitration (Schizo) */ | |
1453 | #define SCHIZO_PCIDIAG_D_RETRY (1UL << 6UL) /* Disable retry limit (Schizo/Tomatillo) */ | |
1454 | #define SCHIZO_PCIDIAG_D_INTSYNC (1UL << 5UL) /* Disable interrupt/DMA synch (Schizo/Tomatillo) */ | |
1455 | #define SCHIZO_PCIDIAG_I_DMA_PARITY (1UL << 3UL) /* Invert DMA parity (Schizo/Tomatillo) */ | |
1456 | #define SCHIZO_PCIDIAG_I_PIOD_PARITY (1UL << 2UL) /* Invert PIO data parity (Schizo/Tomatillo) */ | |
1457 | #define SCHIZO_PCIDIAG_I_PIOA_PARITY (1UL << 1UL) /* Invert PIO address parity (Schizo/Tomatillo) */ | |
1458 | ||
1459 | #define TOMATILLO_PCI_IOC_CSR (0x2248UL) | |
1460 | #define TOMATILLO_IOC_PART_WPENAB 0x0000000000080000UL | |
1461 | #define TOMATILLO_IOC_RDMULT_PENAB 0x0000000000040000UL | |
1462 | #define TOMATILLO_IOC_RDONE_PENAB 0x0000000000020000UL | |
1463 | #define TOMATILLO_IOC_RDLINE_PENAB 0x0000000000010000UL | |
1464 | #define TOMATILLO_IOC_RDMULT_PLEN 0x000000000000c000UL | |
1465 | #define TOMATILLO_IOC_RDMULT_PLEN_SHIFT 14UL | |
1466 | #define TOMATILLO_IOC_RDONE_PLEN 0x0000000000003000UL | |
1467 | #define TOMATILLO_IOC_RDONE_PLEN_SHIFT 12UL | |
1468 | #define TOMATILLO_IOC_RDLINE_PLEN 0x0000000000000c00UL | |
1469 | #define TOMATILLO_IOC_RDLINE_PLEN_SHIFT 10UL | |
1470 | #define TOMATILLO_IOC_PREF_OFF 0x00000000000003f8UL | |
1471 | #define TOMATILLO_IOC_PREF_OFF_SHIFT 3UL | |
1472 | #define TOMATILLO_IOC_RDMULT_CPENAB 0x0000000000000004UL | |
1473 | #define TOMATILLO_IOC_RDONE_CPENAB 0x0000000000000002UL | |
1474 | #define TOMATILLO_IOC_RDLINE_CPENAB 0x0000000000000001UL | |
1475 | ||
1476 | #define TOMATILLO_PCI_IOC_TDIAG (0x2250UL) | |
1477 | #define TOMATILLO_PCI_IOC_DDIAG (0x2290UL) | |
1478 | ||
085ae41f | 1479 | static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) |
1da177e4 | 1480 | { |
e87dc350 | 1481 | struct property *prop; |
1da177e4 LT |
1482 | u64 tmp; |
1483 | ||
864ae180 | 1484 | schizo_write(pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY, 5); |
1da177e4 | 1485 | |
1da177e4 | 1486 | tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_CTRL); |
1da177e4 | 1487 | |
9fba62a5 DM |
1488 | /* Enable arbiter for all PCI slots. */ |
1489 | tmp |= 0xff; | |
1490 | ||
1da177e4 LT |
1491 | if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO && |
1492 | pbm->chip_version >= 0x2) | |
1493 | tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT; | |
1da177e4 | 1494 | |
e87dc350 DM |
1495 | prop = of_find_property(pbm->prom_node, "no-bus-parking", NULL); |
1496 | if (!prop) | |
1da177e4 | 1497 | tmp |= SCHIZO_PCICTRL_PARK; |
9fba62a5 DM |
1498 | else |
1499 | tmp &= ~SCHIZO_PCICTRL_PARK; | |
1da177e4 LT |
1500 | |
1501 | if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO && | |
1502 | pbm->chip_version <= 0x1) | |
9fba62a5 | 1503 | tmp |= SCHIZO_PCICTRL_DTO_INT; |
1da177e4 | 1504 | else |
9fba62a5 | 1505 | tmp &= ~SCHIZO_PCICTRL_DTO_INT; |
1da177e4 LT |
1506 | |
1507 | if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) | |
1508 | tmp |= (SCHIZO_PCICTRL_MRM_PREF | | |
1509 | SCHIZO_PCICTRL_RDO_PREF | | |
1510 | SCHIZO_PCICTRL_RDL_PREF); | |
1511 | ||
1512 | schizo_write(pbm->pbm_regs + SCHIZO_PCI_CTRL, tmp); | |
1513 | ||
1514 | tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_DIAG); | |
1515 | tmp &= ~(SCHIZO_PCIDIAG_D_RTRYARB | | |
1516 | SCHIZO_PCIDIAG_D_RETRY | | |
1517 | SCHIZO_PCIDIAG_D_INTSYNC); | |
1518 | schizo_write(pbm->pbm_regs + SCHIZO_PCI_DIAG, tmp); | |
1519 | ||
1520 | if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) { | |
1521 | /* Clear prefetch lengths to workaround a bug in | |
1522 | * Jalapeno... | |
1523 | */ | |
1524 | tmp = (TOMATILLO_IOC_PART_WPENAB | | |
1525 | (1 << TOMATILLO_IOC_PREF_OFF_SHIFT) | | |
1526 | TOMATILLO_IOC_RDMULT_CPENAB | | |
1527 | TOMATILLO_IOC_RDONE_CPENAB | | |
1528 | TOMATILLO_IOC_RDLINE_CPENAB); | |
1529 | ||
1530 | schizo_write(pbm->pbm_regs + TOMATILLO_PCI_IOC_CSR, | |
1531 | tmp); | |
1532 | } | |
1533 | } | |
1534 | ||
085ae41f | 1535 | static void schizo_pbm_init(struct pci_controller_info *p, |
e87dc350 | 1536 | struct device_node *dp, u32 portid, |
085ae41f | 1537 | int chip_type) |
1da177e4 | 1538 | { |
e87dc350 | 1539 | struct linux_prom64_registers *regs; |
e87dc350 | 1540 | unsigned int *busrange; |
1da177e4 LT |
1541 | struct pci_pbm_info *pbm; |
1542 | const char *chipset_name; | |
e87dc350 | 1543 | u32 *ino_bitmap; |
1da177e4 | 1544 | int is_pbm_a; |
e87dc350 | 1545 | int len; |
1da177e4 LT |
1546 | |
1547 | switch (chip_type) { | |
1548 | case PBM_CHIP_TYPE_TOMATILLO: | |
1549 | chipset_name = "TOMATILLO"; | |
1550 | break; | |
1551 | ||
1552 | case PBM_CHIP_TYPE_SCHIZO_PLUS: | |
1553 | chipset_name = "SCHIZO+"; | |
1554 | break; | |
1555 | ||
1556 | case PBM_CHIP_TYPE_SCHIZO: | |
1557 | default: | |
1558 | chipset_name = "SCHIZO"; | |
1559 | break; | |
1560 | }; | |
1561 | ||
1562 | /* For SCHIZO, three OBP regs: | |
1563 | * 1) PBM controller regs | |
1564 | * 2) Schizo front-end controller regs (same for both PBMs) | |
1565 | * 3) PBM PCI config space | |
1566 | * | |
1567 | * For TOMATILLO, four OBP regs: | |
1568 | * 1) PBM controller regs | |
1569 | * 2) Tomatillo front-end controller regs | |
1570 | * 3) PBM PCI config space | |
1571 | * 4) Ichip regs | |
1572 | */ | |
bc606f3c | 1573 | regs = of_get_property(dp, "reg", NULL); |
1da177e4 | 1574 | |
e87dc350 | 1575 | is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000); |
1da177e4 LT |
1576 | if (is_pbm_a) |
1577 | pbm = &p->pbm_A; | |
1578 | else | |
1579 | pbm = &p->pbm_B; | |
1580 | ||
1581 | pbm->portid = portid; | |
1582 | pbm->parent = p; | |
e87dc350 | 1583 | pbm->prom_node = dp; |
1da177e4 LT |
1584 | pbm->pci_first_slot = 1; |
1585 | ||
1586 | pbm->chip_type = chip_type; | |
bc606f3c DM |
1587 | pbm->chip_version = of_getintprop_default(dp, "version#", 0); |
1588 | pbm->chip_revision = of_getintprop_default(dp, "module-version#", 0); | |
e87dc350 DM |
1589 | |
1590 | pbm->pbm_regs = regs[0].phys_addr; | |
1591 | pbm->controller_regs = regs[1].phys_addr - 0x10000UL; | |
1da177e4 | 1592 | |
bb6743f4 | 1593 | if (chip_type == PBM_CHIP_TYPE_TOMATILLO) |
e87dc350 | 1594 | pbm->sync_reg = regs[3].phys_addr + 0x1a18UL; |
bb6743f4 | 1595 | |
e87dc350 | 1596 | pbm->name = dp->full_name; |
1da177e4 | 1597 | |
e87dc350 | 1598 | printk("%s: %s PCI Bus Module ver[%x:%x]\n", |
bc606f3c | 1599 | pbm->name, chipset_name, |
e87dc350 | 1600 | pbm->chip_version, pbm->chip_revision); |
1da177e4 LT |
1601 | |
1602 | schizo_pbm_hw_init(pbm); | |
1603 | ||
bc606f3c | 1604 | pbm->pbm_ranges = of_get_property(dp, "ranges", &len); |
1da177e4 | 1605 | pbm->num_pbm_ranges = |
e87dc350 | 1606 | (len / sizeof(struct linux_prom_pci_ranges)); |
1da177e4 | 1607 | |
9fd8b647 | 1608 | pci_determine_mem_io_space(pbm); |
1da177e4 | 1609 | |
bc606f3c | 1610 | ino_bitmap = of_get_property(dp, "ino-bitmap", NULL); |
1da177e4 LT |
1611 | pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) | |
1612 | ((u64)ino_bitmap[0] << 0UL)); | |
1613 | ||
bc606f3c | 1614 | busrange = of_get_property(dp, "bus-range", NULL); |
1da177e4 LT |
1615 | pbm->pci_first_busno = busrange[0]; |
1616 | pbm->pci_last_busno = busrange[1]; | |
1617 | ||
1618 | schizo_pbm_iommu_init(pbm); | |
1619 | schizo_pbm_strbuf_init(pbm); | |
1620 | } | |
1621 | ||
1622 | static inline int portid_compare(u32 x, u32 y, int chip_type) | |
1623 | { | |
1624 | if (chip_type == PBM_CHIP_TYPE_TOMATILLO) { | |
1625 | if (x == (y ^ 1)) | |
1626 | return 1; | |
1627 | return 0; | |
1628 | } | |
1629 | return (x == y); | |
1630 | } | |
1631 | ||
e87dc350 | 1632 | static void __schizo_init(struct device_node *dp, char *model_name, int chip_type) |
1da177e4 LT |
1633 | { |
1634 | struct pci_controller_info *p; | |
1635 | struct pci_iommu *iommu; | |
1da177e4 LT |
1636 | u32 portid; |
1637 | ||
bc606f3c | 1638 | portid = of_getintprop_default(dp, "portid", 0xff); |
1da177e4 | 1639 | |
e87dc350 | 1640 | for (p = pci_controller_root; p; p = p->next) { |
1da177e4 LT |
1641 | struct pci_pbm_info *pbm; |
1642 | ||
1643 | if (p->pbm_A.prom_node && p->pbm_B.prom_node) | |
1644 | continue; | |
1645 | ||
1646 | pbm = (p->pbm_A.prom_node ? | |
1647 | &p->pbm_A : | |
1648 | &p->pbm_B); | |
1649 | ||
1650 | if (portid_compare(pbm->portid, portid, chip_type)) { | |
e87dc350 | 1651 | schizo_pbm_init(p, dp, portid, chip_type); |
1da177e4 LT |
1652 | return; |
1653 | } | |
1654 | } | |
1655 | ||
9132983a | 1656 | p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC); |
bc606f3c DM |
1657 | if (!p) |
1658 | goto memfail; | |
1da177e4 | 1659 | |
9132983a | 1660 | iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); |
bc606f3c DM |
1661 | if (!iommu) |
1662 | goto memfail; | |
1663 | ||
1da177e4 LT |
1664 | p->pbm_A.iommu = iommu; |
1665 | ||
9132983a | 1666 | iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); |
bc606f3c DM |
1667 | if (!iommu) |
1668 | goto memfail; | |
1669 | ||
1da177e4 LT |
1670 | p->pbm_B.iommu = iommu; |
1671 | ||
1672 | p->next = pci_controller_root; | |
1673 | pci_controller_root = p; | |
1674 | ||
1675 | p->index = pci_num_controllers++; | |
bc606f3c | 1676 | p->scan_bus = schizo_scan_bus; |
1da177e4 LT |
1677 | p->base_address_update = schizo_base_address_update; |
1678 | p->resource_adjust = schizo_resource_adjust; | |
1679 | p->pci_ops = &schizo_ops; | |
1680 | ||
1681 | /* Like PSYCHO we have a 2GB aligned area for memory space. */ | |
1682 | pci_memspace_mask = 0x7fffffffUL; | |
1683 | ||
e87dc350 | 1684 | schizo_pbm_init(p, dp, portid, chip_type); |
bc606f3c DM |
1685 | return; |
1686 | ||
1687 | memfail: | |
1688 | prom_printf("SCHIZO: Fatal memory allocation error.\n"); | |
1689 | prom_halt(); | |
1da177e4 LT |
1690 | } |
1691 | ||
e87dc350 | 1692 | void schizo_init(struct device_node *dp, char *model_name) |
1da177e4 | 1693 | { |
e87dc350 | 1694 | __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO); |
1da177e4 LT |
1695 | } |
1696 | ||
e87dc350 | 1697 | void schizo_plus_init(struct device_node *dp, char *model_name) |
1da177e4 | 1698 | { |
e87dc350 | 1699 | __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS); |
1da177e4 LT |
1700 | } |
1701 | ||
e87dc350 | 1702 | void tomatillo_init(struct device_node *dp, char *model_name) |
1da177e4 | 1703 | { |
e87dc350 | 1704 | __schizo_init(dp, model_name, PBM_CHIP_TYPE_TOMATILLO); |
1da177e4 | 1705 | } |