1 /* inteltool - dump all registers on an Intel CPU + chipset based system */
2 /* SPDX-License-Identifier: GPL-2.0-only */
3
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <inttypes.h>
7 #include "inteltool.h"
8
9 /* 320766 */
10 static const io_register_t nehalem_dmi_registers[] = {
11 { 0x00, 4, "DMIVCH" }, // DMI Virtual Channel Capability Header
12 { 0x04, 4, "DMIVCCAP1" }, // DMI Port VC Capability Register 1
13 { 0x08, 4, "DMIVCCAP2" }, // DMI Port VC Capability Register 2
14 { 0x0C, 4, "DMIVCCTL" }, // DMI Port VC Control
15 { 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
16 { 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
17 /* { 0x18, 2, "RSVD" }, // Reserved */
18 { 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
19 { 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
20 { 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
21 /* { 0x24, 2, "RSVD" }, // Reserved */
22 { 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
23 /* ... - Reserved */
24 { 0x84, 4, "DMILCAP" }, // DMI Link Capabilities
25 { 0x88, 2, "DMILCTL" }, // DMI Link Control
26 { 0x8A, 2, "DMILSTS" }, // DMI Link Status
27 /* ... - Reserved */
28 };
29
30 /* 322812 */
31 static const io_register_t westmere_dmi_registers[] = {
32 { 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
33 { 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
34 { 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
35 { 0x0C, 2, "DMIPVCCTL" }, // DMI Port VC Control
36 /* { 0x0E, 2, "RSVD" }, // Reserved */
37 { 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
38 { 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
39 /* { 0x18, 2, "RSVD" }, // Reserved */
40 { 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
41 { 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
42 { 0x20, 4, "DMIVC1RCTL1" }, // DMI VC1 Resource Control
43 /* { 0x24, 2, "RSVD" }, // Reserved */
44 { 0x26, 2, "DMIC1RSTS" }, // DMI VC1 Resource Status
45 /* ... - Reserved */
46 { 0x84, 4, "DMILCAP" }, // DMI Link Capabilities
47 { 0x88, 2, "DMILCTL" }, // DMI Link Control
48 { 0x8A, 2, "DMILSTS" }, // DMI Link Status
49 /* ... - Reserved */
50 };
51
52 static const io_register_t sandybridge_dmi_registers[] = {
53 { 0x00, 4, "DMI VCECH" }, // DMI Virtual Channel Enhanced Capability
54 { 0x04, 4, "DMI PVCCAP1" }, // DMI Port VC Capability Register 1
55 { 0x08, 4, "DMI PVVAP2" }, // DMI Port VC Capability Register 2
56 { 0x0C, 2, "DMI PVCCTL" }, // DMI Port VC Control
57 /* { 0x0E, 2, "RSVD" }, // Reserved */
58 { 0x10, 4, "DMI VC0RCAP" }, // DMI VC0 Resource Capability
59 { 0x14, 4, "DMI VC0RCTL" }, // DMI VC0 Resource Control
60 /* { 0x18, 2, "RSVD" }, // Reserved */
61 { 0x1A, 2, "DMI VC0RSTS" }, // DMI VC0 Resource Status
62 { 0x1C, 4, "DMI VC1RCAP" }, // DMI VC1 Resource Capability
63 { 0x20, 4, "DMI VC1RCTL" }, // DMI VC1 Resource Control
64 /* { 0x24, 2, "RSVD" }, // Reserved */
65 { 0x26, 2, "DMI VC1RSTS" }, // DMI VC1 Resource Status
66 { 0x28, 4, "DMI VCPRCAP" }, // DMI VCp Resource Capability
67 { 0x2C, 4, "DMI VCPRCTL" }, // DMI VCp Resource Control
68 /* { 0x30, 2, "RSVD" }, // Reserved */
69 { 0x32, 2, "DMI VCPRSTS" }, // DMI VCp Resource Status
70 { 0x34, 4, "DMI VCMRCAP" }, // DMI VCm Resource Capability
71 { 0x38, 4, "DMI VCMRCTL" }, // DMI VCm Resource Control
72 /* { 0x3C, 2, "RSVD" }, // Reserved */
73 { 0x3E, 2, "DMI VCMRSTS" }, // DMI VCm Resource Status
74 /* { 0x40, 4, "RSVD" }, // Reserved */
75 { 0x44, 4, "DMI ESC" }, // DMI Element Self Description
76 /* { 0x48, 8, "RSVD" }, // Reserved */
77 { 0x50, 4, "DMI LE1D" }, // DMI Link Entry 1 Description
78 /* { 0x54, 4, "RSVD" }, // Reserved */
79 { 0x58, 4, "DMI LE1A" }, // DMI Link Entry 1 Address
80 { 0x5C, 4, "DMI LUE1A" }, // DMI Link Upper Entry 1 Address
81 { 0x60, 4, "DMI LE2D" }, // DMI Link Entry 2 Description
82 /* { 0x64, 4, "RSVD" }, // Reserved */
83 { 0x68, 4, "DMI LE2A" }, // DMI Link Entry 2 Address
84 /* { 0x6C, 4, "RSVD" }, // Reserved
85 { 0x70, 8, "RSVD" }, // Reserved
86 { 0x78, 8, "RSVD" }, // Reserved
87 { 0x80, 4, "RSVD" }, // Reserved */
88 { 0x84, 4, "LCAP" }, // Link Capabilities
89 { 0x88, 2, "LCTL" }, // Link Control
90 { 0x8A, 2, "LSTS" }, // Link Status
91 /* { 0x8C, 4, "RSVD" }, // Reserved
92 { 0x90, 4, "RSVD" }, // Reserved
93 { 0x94, 4, "RSVD" }, // Reserved */
94 { 0x98, 2, "LCTL2" }, // Link Control 2
95 { 0x9A, 2, "LSTS2" }, // Link Status 2
96 /* ... - Reserved */
97 { 0xBC0, 4, "AFE_BMUF0" }, // AFE BMU Configuration Function 0
98 { 0xBC4, 4, "RSVD" }, // Reserved
99 { 0xBC8, 4, "RSVD" }, // Reserved
100 { 0xBCC, 4, "AFE_BMUT0" }, // AFE BMU Configuration Test 0
101 /* ... - Reserved */
102 };
103
104 /*
105 * All Haswell DMI Registers per
106 *
107 * Mobile 4th Generation Intel Core TM Processor Family, Mobile Intel Pentium Processor Family,
108 * and Mobile Intel Celeron Processor Family
109 * Datasheet Volume 2
110 * 329002-002
111 */
112 static const io_register_t haswell_ult_dmi_registers[] = {
113 { 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
114 { 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
115 { 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
116 { 0x0C, 2, "DMI PVCCTL" }, // DMI Port VC Control
117 /* { 0x0E, 2, "RSVD" }, // Reserved */
118 { 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
119 { 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
120 /* { 0x18, 2, "RSVD" }, // Reserved */
121 { 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
122 { 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
123 { 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
124 /* { 0x24, 2, "RSVD" }, // Reserved */
125 { 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
126 { 0x28, 4, "DMIVCPRCAP" }, // DMI VCp Resource Capability
127 { 0x2C, 4, "DMIVCPRCTL" }, // DMI VCp Resource Control
128 /* { 0x30, 2, "RSVD" }, // Reserved */
129 { 0x32, 2, "DMIVCPRSTS" }, // DMI VCp Resource Status
130 { 0x34, 4, "DMIVCMRCAP" }, // DMI VCm Resource Capability
131 { 0x38, 4, "DMIVCMRCTL" }, // DMI VCm Resource Control
132 /* { 0x3C, 2, "RSVD" }, // Reserved */
133 { 0x3E, 2, "DMIVCMRSTS" }, // DMI VCm Resource Status
134 { 0x40, 4, "DMIRCLDECH" }, // DMI Root Complex Link Declaration */
135 { 0x44, 4, "DMIESD" }, // DMI Element Self Description
136 /* { 0x48, 4, "RSVD" }, // Reserved */
137 /* { 0x4C, 4, "RSVD" }, // Reserved */
138 { 0x50, 4, "DMILE1D" }, // DMI Link Entry 1 Description
139 /* { 0x54, 4, "RSVD" }, // Reserved */
140 { 0x58, 4, "DMILE1A" }, // DMI Link Entry 1 Address
141 { 0x5C, 4, "DMILUE1A" }, // DMI Link Upper Entry 1 Address
142 { 0x60, 4, "DMILE2D" }, // DMI Link Entry 2 Description
143 /* { 0x64, 4, "RSVD" }, // Reserved */
144 { 0x68, 4, "DMILE2A" }, // DMI Link Entry 2 Address
145 /* { 0x6C, 4, "RSVD" }, // Reserved */
146 /* { 0x70, 4, "RSVD" }, // Reserved */
147 /* { 0x74, 4, "RSVD" }, // Reserved */
148 /* { 0x78, 4, "RSVD" }, // Reserved */
149 /* { 0x7C, 4, "RSVD" }, // Reserved */
150 /* { 0x80, 4, "RSVD" }, // Reserved */
151 /* { 0x84, 4, "RSVD" }, // Reserved */
152 { 0x88, 2, "LCTL" }, // Link Control
153 /* ... - Reserved */
154 { 0x1C4, 4, "DMIUESTS" }, // DMI Uncorrectable Error Status
155 { 0x1C8, 4, "DMIUEMSK" }, // DMI Uncorrectable Error Mask
156 { 0x1D0, 4, "DMICESTS" }, // DMI Correctable Error Status
157 { 0x1D4, 4, "DMICEMSK" }, // DMI Correctable Error Mask
158 /* ... - Reserved */
159 };
160
161 /*
162 * All Skylake-S/H DMI Registers per
163 *
164 * 6th Generation Intel Processor Families for S-Platform Volume 2 of 2
165 * Page 117
166 * 332688-003E
167 *
168 * 6th Generation Intel Processor Families for H-Platform Volume 2 of 2
169 * Page 117
170 * 332987-002EN
171 */
172 static const io_register_t skylake_dmi_registers[] = {
173 { 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
174 { 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
175 { 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
176 { 0x0C, 2, "DMIPVCCTL" }, // DMI Port VC Control
177 { 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
178 { 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
179 { 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
180 { 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
181 { 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
182 { 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
183 { 0x34, 4, "DMIVCMRCAP" }, // DMI VCm Resource Capability
184 { 0x38, 4, "DMIVCMRCTL" }, // DMI VCm Resource Control
185 { 0x3E, 2, "DMIVCMRSTS" }, // DMI VCm Resource Status
186 { 0x40, 4, "DMIRCLDECH" }, // DMI Root Complex Link Declaration */
187 { 0x44, 4, "DMIESD" }, // DMI Element Self Description
188 { 0x50, 4, "DMILE1D" }, // DMI Link Entry 1 Description
189 { 0x58, 4, "DMILE1A" }, // DMI Link Entry 1 Address
190 { 0x5C, 4, "DMILUE1A" }, // DMI Link Upper Entry 1 Address
191 { 0x60, 4, "DMILE2D" }, // DMI Link Entry 2 Description
192 { 0x68, 4, "DMILE2A" }, // DMI Link Entry 2 Address
193 { 0x84, 4, "LCAP" }, // Link Capabilities
194 { 0x88, 2, "LCTL" }, // Link Control
195 { 0x8A, 2, "LSTS" }, // DMI Link Status
196 { 0x98, 2, "LCTL2" }, // Link Control 2
197 { 0x9A, 2, "LSTS2" }, // DMI Link Status 2
198 { 0x1C4, 4, "DMIUESTS" }, // DMI Uncorrectable Error Status
199 { 0x1C8, 4, "DMIUEMSK" }, // DMI Uncorrectable Error Mask
200 { 0x1CC, 4, "DMIUESEV" }, // DMI Uncorrectable Error Mask
201 { 0x1D0, 4, "DMICESTS" }, // DMI Correctable Error Status
202 { 0x1D4, 4, "DMICEMSK" }, // DMI Correctable Error Mask
203 };
204
205 static const io_register_t alderlake_dmi_registers[] = {
206 { 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
207 { 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
208 { 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
209 { 0x0C, 2, "DMIPVCCTL" }, // DMI Port VC Control
210 { 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
211 { 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
212 { 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
213 { 0x34, 4, "DMIVCMRCAP" }, // DMI VCm Resource Capability
214 { 0x38, 4, "DMIVCMRCTL" }, // DMI VCm Resource Control
215 { 0x3E, 2, "DMIVCMRSTS" }, // DMI VCm Resource Status
216 { 0x40, 4, "DMIRCLDECH" }, // DMI Root Complex Link Declaration */
217 { 0x44, 4, "DMIESD" }, // DMI Element Self Description
218 { 0x50, 4, "DMILE1D" }, // DMI Link Entry 1 Description
219 { 0x5C, 4, "DMILUE1A" }, // DMI Link Upper Entry 1 Address
220 { 0x60, 4, "DMILE2D" }, // DMI Link Entry 2 Description
221 { 0x68, 4, "DMILE2A" }, // DMI Link Entry 2 Address
222 { 0x88, 2, "LCTL" }, // Link Control
223 { 0x1C4, 4, "DMIUESTS" }, // DMI Uncorrectable Error Status
224 { 0x1C8, 4, "DMIUEMSK" }, // DMI Uncorrectable Error Mask
225 { 0x1CC, 4, "DMIUESEV" }, // DMI Uncorrectable Error Mask
226 { 0x1D0, 4, "DMICESTS" }, // DMI Correctable Error Status
227 { 0x1D4, 4, "DMICEMSK" }, // DMI Correctable Error Mask
228 };
229
230 /*
231 * Egress Port Root Complex MMIO configuration space
232 */
print_epbar(struct pci_dev * nb)233 int print_epbar(struct pci_dev *nb)
234 {
235 int i, size = (4 * 1024);
236 volatile uint8_t *epbar;
237 uint64_t epbar_phys;
238
239 printf("\n============= EPBAR =============\n\n");
240
241 switch (nb->device_id) {
242 case PCI_DEVICE_ID_INTEL_82915:
243 case PCI_DEVICE_ID_INTEL_82945GM:
244 case PCI_DEVICE_ID_INTEL_82945GSE:
245 case PCI_DEVICE_ID_INTEL_82945P:
246 case PCI_DEVICE_ID_INTEL_82946:
247 case PCI_DEVICE_ID_INTEL_82975X:
248 epbar_phys = pci_read_long(nb, 0x40) & 0xfffffffe;
249 break;
250 case PCI_DEVICE_ID_INTEL_82965PM:
251 case PCI_DEVICE_ID_INTEL_82Q965:
252 case PCI_DEVICE_ID_INTEL_82Q35:
253 case PCI_DEVICE_ID_INTEL_82G33:
254 case PCI_DEVICE_ID_INTEL_82Q33:
255 case PCI_DEVICE_ID_INTEL_82X38:
256 case PCI_DEVICE_ID_INTEL_32X0:
257 case PCI_DEVICE_ID_INTEL_82XX4X:
258 case PCI_DEVICE_ID_INTEL_82Q45:
259 case PCI_DEVICE_ID_INTEL_82G45:
260 case PCI_DEVICE_ID_INTEL_82G41:
261 case PCI_DEVICE_ID_INTEL_82B43:
262 case PCI_DEVICE_ID_INTEL_82B43_2:
263 case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
264 case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
265 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
266 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
267 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
268 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D:
269 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
270 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
271 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
272 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
273 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
274 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
275 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
276 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_U:
277 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_D:
278 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_M:
279 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D2:
280 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_U:
281 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_Y:
282 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_M:
283 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_WST:
284 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D:
285 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_E:
286 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U:
287 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_Y:
288 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U_Q:
289 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_E3:
290 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_1:
291 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_2:
292 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_8:
293 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4:
294 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4_1:
295 epbar_phys = pci_read_long(nb, 0x40) & 0xfffffffe;
296 epbar_phys |= ((uint64_t)pci_read_long(nb, 0x44)) << 32;
297 break;
298 case PCI_DEVICE_ID_INTEL_82810:
299 case PCI_DEVICE_ID_INTEL_82810_DC:
300 case PCI_DEVICE_ID_INTEL_82810E_DC:
301 case PCI_DEVICE_ID_INTEL_82830M:
302 case PCI_DEVICE_ID_INTEL_82865:
303 printf("This northbridge does not have EPBAR.\n");
304 return 1;
305 default:
306 printf("Error: Dumping EPBAR on this northbridge is not (yet) supported.\n");
307 return 1;
308 }
309
310 epbar = map_physical(epbar_phys, size);
311
312 if (epbar == NULL) {
313 perror("Error mapping EPBAR");
314 exit(1);
315 }
316
317 printf("EPBAR = 0x%08" PRIx64 " (MEM)\n\n", epbar_phys);
318 for (i = 0; i < size; i += 4) {
319 if (read32(epbar + i))
320 printf("0x%04x: 0x%08x\n", i, read32(epbar+i));
321 }
322
323 unmap_physical((void *)epbar, size);
324 return 0;
325 }
326
327 /*
328 * MCH-ICH Serial Interconnect Ingress Root Complex MMIO configuration space
329 */
print_dmibar(struct pci_dev * nb)330 int print_dmibar(struct pci_dev *nb)
331 {
332 int i, size = (4 * 1024);
333 volatile uint8_t *dmibar;
334 uint64_t dmibar_phys;
335 const io_register_t *dmi_registers = NULL;
336
337 printf("\n============= DMIBAR ============\n\n");
338
339 switch (nb->device_id) {
340 case PCI_DEVICE_ID_INTEL_82915:
341 case PCI_DEVICE_ID_INTEL_82945GM:
342 case PCI_DEVICE_ID_INTEL_82945GSE:
343 case PCI_DEVICE_ID_INTEL_82945P:
344 case PCI_DEVICE_ID_INTEL_82975X:
345 dmibar_phys = pci_read_long(nb, 0x4c) & 0xfffffffe;
346 break;
347 case PCI_DEVICE_ID_INTEL_82946:
348 case PCI_DEVICE_ID_INTEL_82965PM:
349 case PCI_DEVICE_ID_INTEL_82Q965:
350 case PCI_DEVICE_ID_INTEL_82Q35:
351 case PCI_DEVICE_ID_INTEL_82G33:
352 case PCI_DEVICE_ID_INTEL_82Q33:
353 case PCI_DEVICE_ID_INTEL_82X38:
354 case PCI_DEVICE_ID_INTEL_32X0:
355 case PCI_DEVICE_ID_INTEL_82XX4X:
356 case PCI_DEVICE_ID_INTEL_82Q45:
357 case PCI_DEVICE_ID_INTEL_82G45:
358 case PCI_DEVICE_ID_INTEL_82G41:
359 case PCI_DEVICE_ID_INTEL_82B43:
360 case PCI_DEVICE_ID_INTEL_82B43_2:
361 case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
362 case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
363 dmibar_phys = pci_read_long(nb, 0x68) & 0xfffffffe;
364 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
365 break;
366 case PCI_DEVICE_ID_INTEL_82810:
367 case PCI_DEVICE_ID_INTEL_82810_DC:
368 case PCI_DEVICE_ID_INTEL_82810E_DC:
369 case PCI_DEVICE_ID_INTEL_82865:
370 printf("This northbridge does not have DMIBAR.\n");
371 return 1;
372 case PCI_DEVICE_ID_INTEL_82X58:
373 dmibar_phys = pci_read_long(nb, 0x50) & 0xfffff000;
374 break;
375 case PCI_DEVICE_ID_INTEL_CORE_0TH_GEN:
376 /* DMIBAR is called DMIRCBAR in Nehalem */
377 dmibar_phys = pci_read_long(nb, 0x50) & 0xfffff000; /* 31:12 */
378 dmi_registers = nehalem_dmi_registers;
379 size = ARRAY_SIZE(nehalem_dmi_registers);
380 break;
381 case PCI_DEVICE_ID_INTEL_CORE_1ST_GEN_D:
382 case PCI_DEVICE_ID_INTEL_CORE_1ST_GEN_M:
383 case PCI_DEVICE_ID_INTEL_CORE_1ST_GEN_0048:
384 dmibar_phys = pci_read_long(nb, 0x68);
385 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
386 dmibar_phys &= 0x0000000ffffff000UL; /* 35:12 */
387 dmi_registers = westmere_dmi_registers;
388 size = ARRAY_SIZE(westmere_dmi_registers);
389 break;
390 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
391 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
392 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
393 dmi_registers = sandybridge_dmi_registers;
394 size = ARRAY_SIZE(sandybridge_dmi_registers);
395 /* fall through */
396 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D: /* pretty printing not implemented yet */
397 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
398 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
399 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
400 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
401 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
402 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
403 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_D:
404 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_M:
405 dmibar_phys = pci_read_long(nb, 0x68);
406 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
407 dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
408 break;
409 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
410 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_U:
411 dmi_registers = haswell_ult_dmi_registers;
412 size = ARRAY_SIZE(haswell_ult_dmi_registers);
413 dmibar_phys = pci_read_long(nb, 0x68);
414 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
415 dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
416 break;
417 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D2:
418 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_U:
419 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_Y:
420 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_M:
421 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_WST:
422 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D:
423 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_E:
424 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U:
425 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_Y:
426 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U_Q:
427 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_E3:
428 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_1:
429 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_2:
430 dmi_registers = skylake_dmi_registers;
431 size = ARRAY_SIZE(skylake_dmi_registers);
432 dmibar_phys = pci_read_long(nb, 0x68);
433 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
434 dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
435 break;
436 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_8:
437 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4:
438 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4_1:
439 dmibar_phys = pci_read_long(nb, 0x68) & 0xfffffffe;
440 dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
441 dmi_registers = alderlake_dmi_registers;
442 size = ARRAY_SIZE(alderlake_dmi_registers);
443 break;
444 default:
445 printf("Error: Dumping DMIBAR on this northbridge is not (yet) supported.\n");
446 return 1;
447 }
448
449 dmibar = map_physical(dmibar_phys, size);
450
451 if (dmibar == NULL) {
452 perror("Error mapping DMIBAR");
453 exit(1);
454 }
455
456 printf("DMIBAR = 0x%08" PRIx64 " (MEM)\n\n", dmibar_phys);
457 if (dmi_registers != NULL) {
458 for (i = 0; i < size; i++) {
459 switch (dmi_registers[i].size) {
460 case 4:
461 printf("dmibase+0x%04x: 0x%08x (%s)\n",
462 dmi_registers[i].addr,
463 read32(dmibar+dmi_registers[i].addr),
464 dmi_registers[i].name);
465 break;
466 case 2:
467 printf("dmibase+0x%04x: 0x%04x (%s)\n",
468 dmi_registers[i].addr,
469 read16(dmibar+dmi_registers[i].addr),
470 dmi_registers[i].name);
471 break;
472 case 1:
473 printf("dmibase+0x%04x: 0x%02x (%s)\n",
474 dmi_registers[i].addr,
475 read8(dmibar+dmi_registers[i].addr),
476 dmi_registers[i].name);
477 break;
478 }
479 }
480 } else {
481 for (i = 0; i < size; i += 4) {
482 if (read32(dmibar + i))
483 printf("0x%04x: 0x%08x\n", i, read32(dmibar+i));
484 }
485 }
486
487 unmap_physical((void *)dmibar, size);
488 return 0;
489 }
490
491 /*
492 * PCIe MMIO configuration space
493 */
print_pciexbar(struct pci_dev * nb)494 int print_pciexbar(struct pci_dev *nb)
495 {
496 uint64_t pciexbar_reg;
497 uint64_t pciexbar_phys;
498 volatile uint8_t *pciexbar;
499 int max_busses, devbase, i;
500 int bus, dev, fn;
501
502 printf("========= PCIEXBAR ========\n\n");
503
504 switch (nb->device_id) {
505 case PCI_DEVICE_ID_INTEL_82915:
506 case PCI_DEVICE_ID_INTEL_82945GM:
507 case PCI_DEVICE_ID_INTEL_82945GSE:
508 case PCI_DEVICE_ID_INTEL_82945P:
509 case PCI_DEVICE_ID_INTEL_82975X:
510 pciexbar_reg = pci_read_long(nb, 0x48);
511 break;
512 case PCI_DEVICE_ID_INTEL_82946:
513 case PCI_DEVICE_ID_INTEL_82965PM:
514 case PCI_DEVICE_ID_INTEL_82Q965:
515 case PCI_DEVICE_ID_INTEL_82Q35:
516 case PCI_DEVICE_ID_INTEL_82G33:
517 case PCI_DEVICE_ID_INTEL_82Q33:
518 case PCI_DEVICE_ID_INTEL_82X38:
519 case PCI_DEVICE_ID_INTEL_32X0:
520 case PCI_DEVICE_ID_INTEL_82XX4X:
521 case PCI_DEVICE_ID_INTEL_82Q45:
522 case PCI_DEVICE_ID_INTEL_82G45:
523 case PCI_DEVICE_ID_INTEL_82G41:
524 case PCI_DEVICE_ID_INTEL_82B43:
525 case PCI_DEVICE_ID_INTEL_82B43_2:
526 case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
527 case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
528 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
529 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
530 case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
531 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D:
532 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
533 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
534 case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
535 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
536 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
537 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
538 case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
539 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_U:
540 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_D:
541 case PCI_DEVICE_ID_INTEL_CORE_5TH_GEN_M:
542 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D2:
543 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_U:
544 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_Y:
545 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_M:
546 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_WST:
547 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_D:
548 case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_E:
549 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U:
550 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_Y:
551 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_U_Q:
552 case PCI_DEVICE_ID_INTEL_CORE_7TH_GEN_E3:
553 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_1:
554 case PCI_DEVICE_ID_INTEL_CORE_8TH_GEN_U_2:
555 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_8:
556 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4:
557 case PCI_DEVICE_ID_INTEL_CORE_ADL_ID_N_0_4_1:
558 pciexbar_reg = pci_read_long(nb, 0x60);
559 pciexbar_reg |= ((uint64_t)pci_read_long(nb, 0x64)) << 32;
560 break;
561 case PCI_DEVICE_ID_INTEL_82810:
562 case PCI_DEVICE_ID_INTEL_82810_DC:
563 case PCI_DEVICE_ID_INTEL_82810E_DC:
564 case PCI_DEVICE_ID_INTEL_82865:
565 printf("Error: This northbridge does not have PCIEXBAR.\n");
566 return 1;
567 default:
568 printf("Error: Dumping PCIEXBAR on this northbridge is not (yet) supported.\n");
569 return 1;
570 }
571
572 if (!(pciexbar_reg & (1 << 0))) {
573 printf("PCIEXBAR register is disabled.\n");
574 return 0;
575 }
576
577 switch ((pciexbar_reg >> 1) & 3) {
578 case 0: // 256MB
579 pciexbar_phys = pciexbar_reg & (0xffULL << 28);
580 max_busses = 256;
581 break;
582 case 1: // 128M
583 pciexbar_phys = pciexbar_reg & (0x1ffULL << 27);
584 max_busses = 128;
585 break;
586 case 2: // 64M
587 pciexbar_phys = pciexbar_reg & (0x3ffULL << 26);
588 max_busses = 64;
589 break;
590 default: // RSVD
591 printf("Undefined address base. Bailing out.\n");
592 return 1;
593 }
594
595 printf("PCIEXBAR: 0x%08" PRIx64 "\n", pciexbar_phys);
596
597 pciexbar = map_physical(pciexbar_phys, (max_busses * 1024 * 1024));
598
599 if (pciexbar == NULL) {
600 perror("Error mapping PCIEXBAR");
601 exit(1);
602 }
603
604 for (bus = 0; bus < max_busses; bus++) {
605 for (dev = 0; dev < 32; dev++) {
606 for (fn = 0; fn < 8; fn++) {
607 devbase = (bus * 1024 * 1024) + (dev * 32 * 1024) + (fn * 4 * 1024);
608
609 if (read16(pciexbar + devbase) == 0xffff)
610 continue;
611
612 /* This is a heuristics. Anyone got a better check? */
613 if( (read32(pciexbar + devbase + 256) == 0xffffffff) &&
614 (read32(pciexbar + devbase + 512) == 0xffffffff) ) {
615 #if DEBUG
616 printf("Skipped non-PCIe device %02x:%02x.%01x\n", bus, dev, fn);
617 #endif
618 continue;
619 }
620
621 printf("\nPCIe %02x:%02x.%01x extended config space:", bus, dev, fn);
622 for (i = 0; i < 4096; i++) {
623 if((i % 0x10) == 0)
624 printf("\n%04x:", i);
625 printf(" %02x", *(pciexbar+devbase+i));
626 }
627 printf("\n");
628 }
629 }
630 }
631
632 unmap_physical((void *)pciexbar, (max_busses * 1024 * 1024));
633
634 return 0;
635 }
636