1/*
2 * Copyright 2016 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#include <drm/amdgpu_drm.h>
25#include "amdgpu.h"
26#include "atomfirmware.h"
27#include "amdgpu_atomfirmware.h"
28#include "atom.h"
29#include "atombios.h"
30#include "soc15_hw_ip.h"
31
32union firmware_info {
33	struct atom_firmware_info_v3_1 v31;
34	struct atom_firmware_info_v3_2 v32;
35	struct atom_firmware_info_v3_3 v33;
36	struct atom_firmware_info_v3_4 v34;
37};
38
39/*
40 * Helper function to query firmware capability
41 *
42 * @adev: amdgpu_device pointer
43 *
44 * Return firmware_capability in firmwareinfo table on success or 0 if not
45 */
46uint32_t amdgpu_atomfirmware_query_firmware_capability(struct amdgpu_device *adev)
47{
48	struct amdgpu_mode_info *mode_info = &adev->mode_info;
49	int index;
50	u16 data_offset, size;
51	union firmware_info *firmware_info;
52	u8 frev, crev;
53	u32 fw_cap = 0;
54
55	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
56			firmwareinfo);
57
58	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
59				index, &size, &frev, &crev, &data_offset)) {
60		/* support firmware_info 3.1 + */
61		if ((frev == 3 && crev >= 1) || (frev > 3)) {
62			firmware_info = (union firmware_info *)
63				(mode_info->atom_context->bios + data_offset);
64			fw_cap = le32_to_cpu(firmware_info->v31.firmware_capability);
65		}
66	}
67
68	return fw_cap;
69}
70
71/*
72 * Helper function to query gpu virtualizaiton capability
73 *
74 * @adev: amdgpu_device pointer
75 *
76 * Return true if gpu virtualization is supported or false if not
77 */
78bool amdgpu_atomfirmware_gpu_virtualization_supported(struct amdgpu_device *adev)
79{
80	u32 fw_cap;
81
82	fw_cap = adev->mode_info.firmware_flags;
83
84	return (fw_cap & ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION) ? true : false;
85}
86
87void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
88{
89	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
90						firmwareinfo);
91	uint16_t data_offset;
92
93	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
94					  NULL, NULL, &data_offset)) {
95		struct atom_firmware_info_v3_1 *firmware_info =
96			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
97							   data_offset);
98
99		adev->bios_scratch_reg_offset =
100			le32_to_cpu(firmware_info->bios_scratch_reg_startaddr);
101	}
102}
103
104static int amdgpu_atomfirmware_allocate_fb_v2_1(struct amdgpu_device *adev,
105	struct vram_usagebyfirmware_v2_1 *fw_usage, int *usage_bytes)
106{
107	u32 start_addr, fw_size, drv_size;
108
109	start_addr = le32_to_cpu(fw_usage->start_address_in_kb);
110	fw_size = le16_to_cpu(fw_usage->used_by_firmware_in_kb);
111	drv_size = le16_to_cpu(fw_usage->used_by_driver_in_kb);
112
113	DRM_DEBUG("atom firmware v2_1 requested %08x %dkb fw %dkb drv\n",
114			  start_addr,
115			  fw_size,
116			  drv_size);
117
118	if ((start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
119		(u32)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
120		ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
121		/* Firmware request VRAM reservation for SR-IOV */
122		adev->mman.fw_vram_usage_start_offset = (start_addr &
123			(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
124		adev->mman.fw_vram_usage_size = fw_size << 10;
125		/* Use the default scratch size */
126		*usage_bytes = 0;
127	} else {
128		*usage_bytes = drv_size << 10;
129	}
130	return 0;
131}
132
133static int amdgpu_atomfirmware_allocate_fb_v2_2(struct amdgpu_device *adev,
134		struct vram_usagebyfirmware_v2_2 *fw_usage, int *usage_bytes)
135{
136	u32 fw_start_addr, fw_size, drv_start_addr, drv_size;
137
138	fw_start_addr = le32_to_cpu(fw_usage->fw_region_start_address_in_kb);
139	fw_size = le16_to_cpu(fw_usage->used_by_firmware_in_kb);
140
141	drv_start_addr = le32_to_cpu(fw_usage->driver_region0_start_address_in_kb);
142	drv_size = le32_to_cpu(fw_usage->used_by_driver_region0_in_kb);
143
144	DRM_DEBUG("atom requested fw start at %08x %dkb and drv start at %08x %dkb\n",
145			  fw_start_addr,
146			  fw_size,
147			  drv_start_addr,
148			  drv_size);
149
150	if (amdgpu_sriov_vf(adev) &&
151	    ((fw_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION <<
152		ATOM_VRAM_OPERATION_FLAGS_SHIFT)) == 0)) {
153		/* Firmware request VRAM reservation for SR-IOV */
154		adev->mman.fw_vram_usage_start_offset = (fw_start_addr &
155			(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
156		adev->mman.fw_vram_usage_size = fw_size << 10;
157	}
158
159	if (amdgpu_sriov_vf(adev) &&
160	    ((drv_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION <<
161		ATOM_VRAM_OPERATION_FLAGS_SHIFT)) == 0)) {
162		/* driver request VRAM reservation for SR-IOV */
163		adev->mman.drv_vram_usage_start_offset = (drv_start_addr &
164			(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
165		adev->mman.drv_vram_usage_size = drv_size << 10;
166	}
167
168	*usage_bytes = 0;
169	return 0;
170}
171
172int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
173{
174	struct atom_context *ctx = adev->mode_info.atom_context;
175	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
176						vram_usagebyfirmware);
177	struct vram_usagebyfirmware_v2_1 *fw_usage_v2_1;
178	struct vram_usagebyfirmware_v2_2 *fw_usage_v2_2;
179	u16 data_offset;
180	u8 frev, crev;
181	int usage_bytes = 0;
182
183	if (amdgpu_atom_parse_data_header(ctx, index, NULL, &frev, &crev, &data_offset)) {
184		if (frev == 2 && crev == 1) {
185			fw_usage_v2_1 =
186				(struct vram_usagebyfirmware_v2_1 *)(ctx->bios + data_offset);
187			amdgpu_atomfirmware_allocate_fb_v2_1(adev,
188					fw_usage_v2_1,
189					&usage_bytes);
190		} else if (frev >= 2 && crev >= 2) {
191			fw_usage_v2_2 =
192				(struct vram_usagebyfirmware_v2_2 *)(ctx->bios + data_offset);
193			amdgpu_atomfirmware_allocate_fb_v2_2(adev,
194					fw_usage_v2_2,
195					&usage_bytes);
196		}
197	}
198
199	ctx->scratch_size_bytes = 0;
200	if (usage_bytes == 0)
201		usage_bytes = 20 * 1024;
202	/* allocate some scratch memory */
203	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
204	if (!ctx->scratch)
205		return -ENOMEM;
206	ctx->scratch_size_bytes = usage_bytes;
207	return 0;
208}
209
210union igp_info {
211	struct atom_integrated_system_info_v1_11 v11;
212	struct atom_integrated_system_info_v1_12 v12;
213	struct atom_integrated_system_info_v2_1 v21;
214};
215
216union umc_info {
217	struct atom_umc_info_v3_1 v31;
218	struct atom_umc_info_v3_2 v32;
219	struct atom_umc_info_v3_3 v33;
220	struct atom_umc_info_v4_0 v40;
221};
222
223union vram_info {
224	struct atom_vram_info_header_v2_3 v23;
225	struct atom_vram_info_header_v2_4 v24;
226	struct atom_vram_info_header_v2_5 v25;
227	struct atom_vram_info_header_v2_6 v26;
228	struct atom_vram_info_header_v3_0 v30;
229};
230
231union vram_module {
232	struct atom_vram_module_v9 v9;
233	struct atom_vram_module_v10 v10;
234	struct atom_vram_module_v11 v11;
235	struct atom_vram_module_v3_0 v30;
236};
237
238static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
239					      int atom_mem_type)
240{
241	int vram_type;
242
243	if (adev->flags & AMD_IS_APU) {
244		switch (atom_mem_type) {
245		case Ddr2MemType:
246		case LpDdr2MemType:
247			vram_type = AMDGPU_VRAM_TYPE_DDR2;
248			break;
249		case Ddr3MemType:
250		case LpDdr3MemType:
251			vram_type = AMDGPU_VRAM_TYPE_DDR3;
252			break;
253		case Ddr4MemType:
254			vram_type = AMDGPU_VRAM_TYPE_DDR4;
255			break;
256		case LpDdr4MemType:
257			vram_type = AMDGPU_VRAM_TYPE_LPDDR4;
258			break;
259		case Ddr5MemType:
260			vram_type = AMDGPU_VRAM_TYPE_DDR5;
261			break;
262		case LpDdr5MemType:
263			vram_type = AMDGPU_VRAM_TYPE_LPDDR5;
264			break;
265		default:
266			vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
267			break;
268		}
269	} else {
270		switch (atom_mem_type) {
271		case ATOM_DGPU_VRAM_TYPE_GDDR5:
272			vram_type = AMDGPU_VRAM_TYPE_GDDR5;
273			break;
274		case ATOM_DGPU_VRAM_TYPE_HBM2:
275		case ATOM_DGPU_VRAM_TYPE_HBM2E:
276		case ATOM_DGPU_VRAM_TYPE_HBM3:
277			vram_type = AMDGPU_VRAM_TYPE_HBM;
278			break;
279		case ATOM_DGPU_VRAM_TYPE_GDDR6:
280			vram_type = AMDGPU_VRAM_TYPE_GDDR6;
281			break;
282		default:
283			vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
284			break;
285		}
286	}
287
288	return vram_type;
289}
290
291
292int
293amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
294				  int *vram_width, int *vram_type,
295				  int *vram_vendor)
296{
297	struct amdgpu_mode_info *mode_info = &adev->mode_info;
298	int index, i = 0;
299	u16 data_offset, size;
300	union igp_info *igp_info;
301	union vram_info *vram_info;
302	union vram_module *vram_module;
303	u8 frev, crev;
304	u8 mem_type;
305	u8 mem_vendor;
306	u32 mem_channel_number;
307	u32 mem_channel_width;
308	u32 module_id;
309
310	if (adev->flags & AMD_IS_APU)
311		index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
312						    integratedsysteminfo);
313	else
314		index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
315						    vram_info);
316
317	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
318					  index, &size,
319					  &frev, &crev, &data_offset)) {
320		if (adev->flags & AMD_IS_APU) {
321			igp_info = (union igp_info *)
322				(mode_info->atom_context->bios + data_offset);
323			switch (frev) {
324			case 1:
325				switch (crev) {
326				case 11:
327				case 12:
328					mem_channel_number = igp_info->v11.umachannelnumber;
329					if (!mem_channel_number)
330						mem_channel_number = 1;
331					mem_type = igp_info->v11.memorytype;
332					if (mem_type == LpDdr5MemType)
333						mem_channel_width = 32;
334					else
335						mem_channel_width = 64;
336					if (vram_width)
337						*vram_width = mem_channel_number * mem_channel_width;
338					if (vram_type)
339						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
340					break;
341				default:
342					return -EINVAL;
343				}
344				break;
345			case 2:
346				switch (crev) {
347				case 1:
348				case 2:
349					mem_channel_number = igp_info->v21.umachannelnumber;
350					if (!mem_channel_number)
351						mem_channel_number = 1;
352					mem_type = igp_info->v21.memorytype;
353					if (mem_type == LpDdr5MemType)
354						mem_channel_width = 32;
355					else
356						mem_channel_width = 64;
357					if (vram_width)
358						*vram_width = mem_channel_number * mem_channel_width;
359					if (vram_type)
360						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
361					break;
362				default:
363					return -EINVAL;
364				}
365				break;
366			default:
367				return -EINVAL;
368			}
369		} else {
370			vram_info = (union vram_info *)
371				(mode_info->atom_context->bios + data_offset);
372			module_id = (RREG32(adev->bios_scratch_reg_offset + 4) & 0x00ff0000) >> 16;
373			if (frev == 3) {
374				switch (crev) {
375				/* v30 */
376				case 0:
377					vram_module = (union vram_module *)vram_info->v30.vram_module;
378					mem_vendor = (vram_module->v30.dram_vendor_id) & 0xF;
379					if (vram_vendor)
380						*vram_vendor = mem_vendor;
381					mem_type = vram_info->v30.memory_type;
382					if (vram_type)
383						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
384					mem_channel_number = vram_info->v30.channel_num;
385					mem_channel_width = vram_info->v30.channel_width;
386					if (vram_width)
387						*vram_width = mem_channel_number * (1 << mem_channel_width);
388					break;
389				default:
390					return -EINVAL;
391				}
392			} else if (frev == 2) {
393				switch (crev) {
394				/* v23 */
395				case 3:
396					if (module_id > vram_info->v23.vram_module_num)
397						module_id = 0;
398					vram_module = (union vram_module *)vram_info->v23.vram_module;
399					while (i < module_id) {
400						vram_module = (union vram_module *)
401							((u8 *)vram_module + vram_module->v9.vram_module_size);
402						i++;
403					}
404					mem_type = vram_module->v9.memory_type;
405					if (vram_type)
406						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
407					mem_channel_number = vram_module->v9.channel_num;
408					mem_channel_width = vram_module->v9.channel_width;
409					if (vram_width)
410						*vram_width = mem_channel_number * (1 << mem_channel_width);
411					mem_vendor = (vram_module->v9.vender_rev_id) & 0xF;
412					if (vram_vendor)
413						*vram_vendor = mem_vendor;
414					break;
415				/* v24 */
416				case 4:
417					if (module_id > vram_info->v24.vram_module_num)
418						module_id = 0;
419					vram_module = (union vram_module *)vram_info->v24.vram_module;
420					while (i < module_id) {
421						vram_module = (union vram_module *)
422							((u8 *)vram_module + vram_module->v10.vram_module_size);
423						i++;
424					}
425					mem_type = vram_module->v10.memory_type;
426					if (vram_type)
427						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
428					mem_channel_number = vram_module->v10.channel_num;
429					mem_channel_width = vram_module->v10.channel_width;
430					if (vram_width)
431						*vram_width = mem_channel_number * (1 << mem_channel_width);
432					mem_vendor = (vram_module->v10.vender_rev_id) & 0xF;
433					if (vram_vendor)
434						*vram_vendor = mem_vendor;
435					break;
436				/* v25 */
437				case 5:
438					if (module_id > vram_info->v25.vram_module_num)
439						module_id = 0;
440					vram_module = (union vram_module *)vram_info->v25.vram_module;
441					while (i < module_id) {
442						vram_module = (union vram_module *)
443							((u8 *)vram_module + vram_module->v11.vram_module_size);
444						i++;
445					}
446					mem_type = vram_module->v11.memory_type;
447					if (vram_type)
448						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
449					mem_channel_number = vram_module->v11.channel_num;
450					mem_channel_width = vram_module->v11.channel_width;
451					if (vram_width)
452						*vram_width = mem_channel_number * (1 << mem_channel_width);
453					mem_vendor = (vram_module->v11.vender_rev_id) & 0xF;
454					if (vram_vendor)
455						*vram_vendor = mem_vendor;
456					break;
457				/* v26 */
458				case 6:
459					if (module_id > vram_info->v26.vram_module_num)
460						module_id = 0;
461					vram_module = (union vram_module *)vram_info->v26.vram_module;
462					while (i < module_id) {
463						vram_module = (union vram_module *)
464							((u8 *)vram_module + vram_module->v9.vram_module_size);
465						i++;
466					}
467					mem_type = vram_module->v9.memory_type;
468					if (vram_type)
469						*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
470					mem_channel_number = vram_module->v9.channel_num;
471					mem_channel_width = vram_module->v9.channel_width;
472					if (vram_width)
473						*vram_width = mem_channel_number * (1 << mem_channel_width);
474					mem_vendor = (vram_module->v9.vender_rev_id) & 0xF;
475					if (vram_vendor)
476						*vram_vendor = mem_vendor;
477					break;
478				default:
479					return -EINVAL;
480				}
481			} else {
482				/* invalid frev */
483				return -EINVAL;
484			}
485		}
486
487	}
488
489	return 0;
490}
491
492/*
493 * Return true if vbios enabled ecc by default, if umc info table is available
494 * or false if ecc is not enabled or umc info table is not available
495 */
496bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev)
497{
498	struct amdgpu_mode_info *mode_info = &adev->mode_info;
499	int index;
500	u16 data_offset, size;
501	union umc_info *umc_info;
502	u8 frev, crev;
503	bool ecc_default_enabled = false;
504	u8 umc_config;
505	u32 umc_config1;
506
507	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
508			umc_info);
509
510	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
511				index, &size, &frev, &crev, &data_offset)) {
512		umc_info = (union umc_info *)(mode_info->atom_context->bios + data_offset);
513		if (frev == 3) {
514			switch (crev) {
515			case 1:
516				umc_config = le32_to_cpu(umc_info->v31.umc_config);
517				ecc_default_enabled =
518					(umc_config & UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ? true : false;
519				break;
520			case 2:
521				umc_config = le32_to_cpu(umc_info->v32.umc_config);
522				ecc_default_enabled =
523					(umc_config & UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ? true : false;
524				break;
525			case 3:
526				umc_config = le32_to_cpu(umc_info->v33.umc_config);
527				umc_config1 = le32_to_cpu(umc_info->v33.umc_config1);
528				ecc_default_enabled =
529					((umc_config & UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ||
530					 (umc_config1 & UMC_CONFIG1__ENABLE_ECC_CAPABLE)) ? true : false;
531				break;
532			default:
533				/* unsupported crev */
534				return false;
535			}
536		} else if (frev == 4) {
537			switch (crev) {
538			case 0:
539				umc_config1 = le32_to_cpu(umc_info->v40.umc_config1);
540				ecc_default_enabled =
541					(umc_config1 & UMC_CONFIG1__ENABLE_ECC_CAPABLE) ? true : false;
542				break;
543			default:
544				/* unsupported crev */
545				return false;
546			}
547		} else {
548			/* unsupported frev */
549			return false;
550		}
551	}
552
553	return ecc_default_enabled;
554}
555
556/*
557 * Helper function to query sram ecc capablity
558 *
559 * @adev: amdgpu_device pointer
560 *
561 * Return true if vbios supports sram ecc or false if not
562 */
563bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev)
564{
565	u32 fw_cap;
566
567	fw_cap = adev->mode_info.firmware_flags;
568
569	return (fw_cap & ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false;
570}
571
572/*
573 * Helper function to query dynamic boot config capability
574 *
575 * @adev: amdgpu_device pointer
576 *
577 * Return true if vbios supports dynamic boot config or false if not
578 */
579bool amdgpu_atomfirmware_dynamic_boot_config_supported(struct amdgpu_device *adev)
580{
581	u32 fw_cap;
582
583	fw_cap = adev->mode_info.firmware_flags;
584
585	return (fw_cap & ATOM_FIRMWARE_CAP_DYNAMIC_BOOT_CFG_ENABLE) ? true : false;
586}
587
588/**
589 * amdgpu_atomfirmware_ras_rom_addr -- Get the RAS EEPROM addr from VBIOS
590 * @adev: amdgpu_device pointer
591 * @i2c_address: pointer to u8; if not NULL, will contain
592 *    the RAS EEPROM address if the function returns true
593 *
594 * Return true if VBIOS supports RAS EEPROM address reporting,
595 * else return false. If true and @i2c_address is not NULL,
596 * will contain the RAS ROM address.
597 */
598bool amdgpu_atomfirmware_ras_rom_addr(struct amdgpu_device *adev,
599				      u8 *i2c_address)
600{
601	struct amdgpu_mode_info *mode_info = &adev->mode_info;
602	int index;
603	u16 data_offset, size;
604	union firmware_info *firmware_info;
605	u8 frev, crev;
606
607	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
608					    firmwareinfo);
609
610	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
611					  index, &size, &frev, &crev,
612					  &data_offset)) {
613		/* support firmware_info 3.4 + */
614		if ((frev == 3 && crev >= 4) || (frev > 3)) {
615			firmware_info = (union firmware_info *)
616				(mode_info->atom_context->bios + data_offset);
617			/* The ras_rom_i2c_slave_addr should ideally
618			 * be a 19-bit EEPROM address, which would be
619			 * used as is by the driver; see top of
620			 * amdgpu_eeprom.c.
621			 *
622			 * When this is the case, 0 is of course a
623			 * valid RAS EEPROM address, in which case,
624			 * we'll drop the first "if (firm...)" and only
625			 * leave the check for the pointer.
626			 *
627			 * The reason this works right now is because
628			 * ras_rom_i2c_slave_addr contains the EEPROM
629			 * device type qualifier 1010b in the top 4
630			 * bits.
631			 */
632			if (firmware_info->v34.ras_rom_i2c_slave_addr) {
633				if (i2c_address)
634					*i2c_address = firmware_info->v34.ras_rom_i2c_slave_addr;
635				return true;
636			}
637		}
638	}
639
640	return false;
641}
642
643
644union smu_info {
645	struct atom_smu_info_v3_1 v31;
646	struct atom_smu_info_v4_0 v40;
647};
648
649union gfx_info {
650	struct atom_gfx_info_v2_2 v22;
651	struct atom_gfx_info_v2_4 v24;
652	struct atom_gfx_info_v2_7 v27;
653	struct atom_gfx_info_v3_0 v30;
654};
655
656int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
657{
658	struct amdgpu_mode_info *mode_info = &adev->mode_info;
659	struct amdgpu_pll *spll = &adev->clock.spll;
660	struct amdgpu_pll *mpll = &adev->clock.mpll;
661	uint8_t frev, crev;
662	uint16_t data_offset;
663	int ret = -EINVAL, index;
664
665	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
666					    firmwareinfo);
667	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
668				   &frev, &crev, &data_offset)) {
669		union firmware_info *firmware_info =
670			(union firmware_info *)(mode_info->atom_context->bios +
671						data_offset);
672
673		adev->clock.default_sclk =
674			le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz);
675		adev->clock.default_mclk =
676			le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz);
677
678		adev->pm.current_sclk = adev->clock.default_sclk;
679		adev->pm.current_mclk = adev->clock.default_mclk;
680
681		ret = 0;
682	}
683
684	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
685					    smu_info);
686	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
687				   &frev, &crev, &data_offset)) {
688		union smu_info *smu_info =
689			(union smu_info *)(mode_info->atom_context->bios +
690					   data_offset);
691
692		/* system clock */
693		if (frev == 3)
694			spll->reference_freq = le32_to_cpu(smu_info->v31.core_refclk_10khz);
695		else if (frev == 4)
696			spll->reference_freq = le32_to_cpu(smu_info->v40.core_refclk_10khz);
697
698		spll->reference_div = 0;
699		spll->min_post_div = 1;
700		spll->max_post_div = 1;
701		spll->min_ref_div = 2;
702		spll->max_ref_div = 0xff;
703		spll->min_feedback_div = 4;
704		spll->max_feedback_div = 0xff;
705		spll->best_vco = 0;
706
707		ret = 0;
708	}
709
710	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
711					    umc_info);
712	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
713				   &frev, &crev, &data_offset)) {
714		union umc_info *umc_info =
715			(union umc_info *)(mode_info->atom_context->bios +
716					   data_offset);
717
718		/* memory clock */
719		mpll->reference_freq = le32_to_cpu(umc_info->v31.mem_refclk_10khz);
720
721		mpll->reference_div = 0;
722		mpll->min_post_div = 1;
723		mpll->max_post_div = 1;
724		mpll->min_ref_div = 2;
725		mpll->max_ref_div = 0xff;
726		mpll->min_feedback_div = 4;
727		mpll->max_feedback_div = 0xff;
728		mpll->best_vco = 0;
729
730		ret = 0;
731	}
732
733	/* if asic is Navi+, the rlc reference clock is used for system clock
734	 * from vbios gfx_info table */
735	if (adev->asic_type >= CHIP_NAVI10) {
736		index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
737						   gfx_info);
738		if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
739					  &frev, &crev, &data_offset)) {
740			union gfx_info *gfx_info = (union gfx_info *)
741				(mode_info->atom_context->bios + data_offset);
742			if ((frev == 3) ||
743			    (frev == 2 && crev == 6)) {
744				spll->reference_freq = le32_to_cpu(gfx_info->v30.golden_tsc_count_lower_refclk);
745				ret = 0;
746			} else if ((frev == 2) &&
747				   (crev >= 2) &&
748				   (crev != 6)) {
749				spll->reference_freq = le32_to_cpu(gfx_info->v22.rlc_gpu_timer_refclk);
750				ret = 0;
751			} else {
752				BUG();
753			}
754		}
755	}
756
757	return ret;
758}
759
760int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev)
761{
762	struct amdgpu_mode_info *mode_info = &adev->mode_info;
763	int index;
764	uint8_t frev, crev;
765	uint16_t data_offset;
766
767	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
768					    gfx_info);
769	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
770				   &frev, &crev, &data_offset)) {
771		union gfx_info *gfx_info = (union gfx_info *)
772			(mode_info->atom_context->bios + data_offset);
773		if (frev == 2) {
774			switch (crev) {
775			case 4:
776				adev->gfx.config.max_shader_engines = gfx_info->v24.max_shader_engines;
777				adev->gfx.config.max_cu_per_sh = gfx_info->v24.max_cu_per_sh;
778				adev->gfx.config.max_sh_per_se = gfx_info->v24.max_sh_per_se;
779				adev->gfx.config.max_backends_per_se = gfx_info->v24.max_backends_per_se;
780				adev->gfx.config.max_texture_channel_caches = gfx_info->v24.max_texture_channel_caches;
781				adev->gfx.config.max_gprs = le16_to_cpu(gfx_info->v24.gc_num_gprs);
782				adev->gfx.config.max_gs_threads = gfx_info->v24.gc_num_max_gs_thds;
783				adev->gfx.config.gs_vgt_table_depth = gfx_info->v24.gc_gs_table_depth;
784				adev->gfx.config.gs_prim_buffer_depth =
785					le16_to_cpu(gfx_info->v24.gc_gsprim_buff_depth);
786				adev->gfx.config.double_offchip_lds_buf =
787					gfx_info->v24.gc_double_offchip_lds_buffer;
788				adev->gfx.cu_info.wave_front_size = le16_to_cpu(gfx_info->v24.gc_wave_size);
789				adev->gfx.cu_info.max_waves_per_simd = le16_to_cpu(gfx_info->v24.gc_max_waves_per_simd);
790				adev->gfx.cu_info.max_scratch_slots_per_cu = gfx_info->v24.gc_max_scratch_slots_per_cu;
791				adev->gfx.cu_info.lds_size = le16_to_cpu(gfx_info->v24.gc_lds_size);
792				return 0;
793			case 7:
794				adev->gfx.config.max_shader_engines = gfx_info->v27.max_shader_engines;
795				adev->gfx.config.max_cu_per_sh = gfx_info->v27.max_cu_per_sh;
796				adev->gfx.config.max_sh_per_se = gfx_info->v27.max_sh_per_se;
797				adev->gfx.config.max_backends_per_se = gfx_info->v27.max_backends_per_se;
798				adev->gfx.config.max_texture_channel_caches = gfx_info->v27.max_texture_channel_caches;
799				adev->gfx.config.max_gprs = le16_to_cpu(gfx_info->v27.gc_num_gprs);
800				adev->gfx.config.max_gs_threads = gfx_info->v27.gc_num_max_gs_thds;
801				adev->gfx.config.gs_vgt_table_depth = gfx_info->v27.gc_gs_table_depth;
802				adev->gfx.config.gs_prim_buffer_depth = le16_to_cpu(gfx_info->v27.gc_gsprim_buff_depth);
803				adev->gfx.config.double_offchip_lds_buf = gfx_info->v27.gc_double_offchip_lds_buffer;
804				adev->gfx.cu_info.wave_front_size = le16_to_cpu(gfx_info->v27.gc_wave_size);
805				adev->gfx.cu_info.max_waves_per_simd = le16_to_cpu(gfx_info->v27.gc_max_waves_per_simd);
806				adev->gfx.cu_info.max_scratch_slots_per_cu = gfx_info->v27.gc_max_scratch_slots_per_cu;
807				adev->gfx.cu_info.lds_size = le16_to_cpu(gfx_info->v27.gc_lds_size);
808				return 0;
809			default:
810				return -EINVAL;
811			}
812		} else if (frev == 3) {
813			switch (crev) {
814			case 0:
815				adev->gfx.config.max_shader_engines = gfx_info->v30.max_shader_engines;
816				adev->gfx.config.max_cu_per_sh = gfx_info->v30.max_cu_per_sh;
817				adev->gfx.config.max_sh_per_se = gfx_info->v30.max_sh_per_se;
818				adev->gfx.config.max_backends_per_se = gfx_info->v30.max_backends_per_se;
819				adev->gfx.config.max_texture_channel_caches = gfx_info->v30.max_texture_channel_caches;
820				return 0;
821			default:
822				return -EINVAL;
823			}
824		} else {
825			return -EINVAL;
826		}
827
828	}
829	return -EINVAL;
830}
831
832/*
833 * Helper function to query two stage mem training capability
834 *
835 * @adev: amdgpu_device pointer
836 *
837 * Return true if two stage mem training is supported or false if not
838 */
839bool amdgpu_atomfirmware_mem_training_supported(struct amdgpu_device *adev)
840{
841	u32 fw_cap;
842
843	fw_cap = adev->mode_info.firmware_flags;
844
845	return (fw_cap & ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING) ? true : false;
846}
847
848int amdgpu_atomfirmware_get_fw_reserved_fb_size(struct amdgpu_device *adev)
849{
850	struct atom_context *ctx = adev->mode_info.atom_context;
851	union firmware_info *firmware_info;
852	int index;
853	u16 data_offset, size;
854	u8 frev, crev;
855	int fw_reserved_fb_size;
856
857	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
858			firmwareinfo);
859
860	if (!amdgpu_atom_parse_data_header(ctx, index, &size,
861				&frev, &crev, &data_offset))
862		/* fail to parse data_header */
863		return 0;
864
865	firmware_info = (union firmware_info *)(ctx->bios + data_offset);
866
867	if (frev != 3)
868		return -EINVAL;
869
870	switch (crev) {
871	case 4:
872		fw_reserved_fb_size =
873			(firmware_info->v34.fw_reserved_size_in_kb << 10);
874		break;
875	default:
876		fw_reserved_fb_size = 0;
877		break;
878	}
879
880	return fw_reserved_fb_size;
881}
882
883/*
884 * Helper function to execute asic_init table
885 *
886 * @adev: amdgpu_device pointer
887 * @fb_reset: flag to indicate whether fb is reset or not
888 *
889 * Return 0 if succeed, otherwise failed
890 */
891int amdgpu_atomfirmware_asic_init(struct amdgpu_device *adev, bool fb_reset)
892{
893	struct amdgpu_mode_info *mode_info = &adev->mode_info;
894	struct atom_context *ctx;
895	uint8_t frev, crev;
896	uint16_t data_offset;
897	uint32_t bootup_sclk_in10khz, bootup_mclk_in10khz;
898	struct asic_init_ps_allocation_v2_1 asic_init_ps_v2_1;
899	int index;
900
901	if (!mode_info)
902		return -EINVAL;
903
904	ctx = mode_info->atom_context;
905	if (!ctx)
906		return -EINVAL;
907
908	/* query bootup sclk/mclk from firmware_info table */
909	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
910					    firmwareinfo);
911	if (amdgpu_atom_parse_data_header(ctx, index, NULL,
912				&frev, &crev, &data_offset)) {
913		union firmware_info *firmware_info =
914			(union firmware_info *)(ctx->bios +
915						data_offset);
916
917		bootup_sclk_in10khz =
918			le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz);
919		bootup_mclk_in10khz =
920			le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz);
921	} else {
922		return -EINVAL;
923	}
924
925	index = get_index_into_master_table(atom_master_list_of_command_functions_v2_1,
926					asic_init);
927	if (amdgpu_atom_parse_cmd_header(mode_info->atom_context, index, &frev, &crev)) {
928		if (frev == 2 && crev >= 1) {
929			memset(&asic_init_ps_v2_1, 0, sizeof(asic_init_ps_v2_1));
930			asic_init_ps_v2_1.param.engineparam.sclkfreqin10khz = bootup_sclk_in10khz;
931			asic_init_ps_v2_1.param.memparam.mclkfreqin10khz = bootup_mclk_in10khz;
932			asic_init_ps_v2_1.param.engineparam.engineflag = b3NORMAL_ENGINE_INIT;
933			if (!fb_reset)
934				asic_init_ps_v2_1.param.memparam.memflag = b3DRAM_SELF_REFRESH_EXIT;
935			else
936				asic_init_ps_v2_1.param.memparam.memflag = 0;
937		} else {
938			return -EINVAL;
939		}
940	} else {
941		return -EINVAL;
942	}
943
944	return amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, (uint32_t *)&asic_init_ps_v2_1,
945		sizeof(asic_init_ps_v2_1));
946}
947