xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/nv.c (revision 32ced09d)
1 /*
2  * Copyright 2019 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 #include <linux/firmware.h>
24 #include <linux/slab.h>
25 #include <linux/module.h>
26 #include <linux/pci.h>
27 
28 #include "amdgpu.h"
29 #include "amdgpu_atombios.h"
30 #include "amdgpu_ih.h"
31 #include "amdgpu_uvd.h"
32 #include "amdgpu_vce.h"
33 #include "amdgpu_ucode.h"
34 #include "amdgpu_psp.h"
35 #include "amdgpu_smu.h"
36 #include "atom.h"
37 #include "amd_pcie.h"
38 
39 #include "gc/gc_10_1_0_offset.h"
40 #include "gc/gc_10_1_0_sh_mask.h"
41 #include "hdp/hdp_5_0_0_offset.h"
42 #include "hdp/hdp_5_0_0_sh_mask.h"
43 #include "smuio/smuio_11_0_0_offset.h"
44 
45 #include "soc15.h"
46 #include "soc15_common.h"
47 #include "gmc_v10_0.h"
48 #include "gfxhub_v2_0.h"
49 #include "mmhub_v2_0.h"
50 #include "nbio_v2_3.h"
51 #include "nv.h"
52 #include "navi10_ih.h"
53 #include "gfx_v10_0.h"
54 #include "sdma_v5_0.h"
55 #include "vcn_v2_0.h"
56 #include "jpeg_v2_0.h"
57 #include "dce_virtual.h"
58 #include "mes_v10_1.h"
59 #include "mxgpu_nv.h"
60 
61 static const struct amd_ip_funcs nv_common_ip_funcs;
62 
63 /*
64  * Indirect registers accessor
65  */
66 static u32 nv_pcie_rreg(struct amdgpu_device *adev, u32 reg)
67 {
68 	unsigned long flags, address, data;
69 	u32 r;
70 	address = adev->nbio.funcs->get_pcie_index_offset(adev);
71 	data = adev->nbio.funcs->get_pcie_data_offset(adev);
72 
73 	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
74 	WREG32(address, reg);
75 	(void)RREG32(address);
76 	r = RREG32(data);
77 	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
78 	return r;
79 }
80 
81 static void nv_pcie_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
82 {
83 	unsigned long flags, address, data;
84 
85 	address = adev->nbio.funcs->get_pcie_index_offset(adev);
86 	data = adev->nbio.funcs->get_pcie_data_offset(adev);
87 
88 	spin_lock_irqsave(&adev->pcie_idx_lock, flags);
89 	WREG32(address, reg);
90 	(void)RREG32(address);
91 	WREG32(data, v);
92 	(void)RREG32(data);
93 	spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
94 }
95 
96 static u32 nv_didt_rreg(struct amdgpu_device *adev, u32 reg)
97 {
98 	unsigned long flags, address, data;
99 	u32 r;
100 
101 	address = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_INDEX);
102 	data = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_DATA);
103 
104 	spin_lock_irqsave(&adev->didt_idx_lock, flags);
105 	WREG32(address, (reg));
106 	r = RREG32(data);
107 	spin_unlock_irqrestore(&adev->didt_idx_lock, flags);
108 	return r;
109 }
110 
111 static void nv_didt_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
112 {
113 	unsigned long flags, address, data;
114 
115 	address = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_INDEX);
116 	data = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_DATA);
117 
118 	spin_lock_irqsave(&adev->didt_idx_lock, flags);
119 	WREG32(address, (reg));
120 	WREG32(data, (v));
121 	spin_unlock_irqrestore(&adev->didt_idx_lock, flags);
122 }
123 
124 static u32 nv_get_config_memsize(struct amdgpu_device *adev)
125 {
126 	return adev->nbio.funcs->get_memsize(adev);
127 }
128 
129 static u32 nv_get_xclk(struct amdgpu_device *adev)
130 {
131 	return adev->clock.spll.reference_freq;
132 }
133 
134 
135 void nv_grbm_select(struct amdgpu_device *adev,
136 		     u32 me, u32 pipe, u32 queue, u32 vmid)
137 {
138 	u32 grbm_gfx_cntl = 0;
139 	grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, PIPEID, pipe);
140 	grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, MEID, me);
141 	grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, VMID, vmid);
142 	grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, QUEUEID, queue);
143 
144 	WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_CNTL), grbm_gfx_cntl);
145 }
146 
147 static void nv_vga_set_state(struct amdgpu_device *adev, bool state)
148 {
149 	/* todo */
150 }
151 
152 static bool nv_read_disabled_bios(struct amdgpu_device *adev)
153 {
154 	/* todo */
155 	return false;
156 }
157 
158 static bool nv_read_bios_from_rom(struct amdgpu_device *adev,
159 				  u8 *bios, u32 length_bytes)
160 {
161 	u32 *dw_ptr;
162 	u32 i, length_dw;
163 
164 	if (bios == NULL)
165 		return false;
166 	if (length_bytes == 0)
167 		return false;
168 	/* APU vbios image is part of sbios image */
169 	if (adev->flags & AMD_IS_APU)
170 		return false;
171 
172 	dw_ptr = (u32 *)bios;
173 	length_dw = ALIGN(length_bytes, 4) / 4;
174 
175 	/* set rom index to 0 */
176 	WREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX), 0);
177 	/* read out the rom data */
178 	for (i = 0; i < length_dw; i++)
179 		dw_ptr[i] = RREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA));
180 
181 	return true;
182 }
183 
184 static struct soc15_allowed_register_entry nv_allowed_read_registers[] = {
185 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS)},
186 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS2)},
187 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE0)},
188 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE1)},
189 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE2)},
190 	{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE3)},
191 #if 0	/* TODO: will set it when SDMA header is available */
192 	{ SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_STATUS_REG)},
193 	{ SOC15_REG_ENTRY(SDMA1, 0, mmSDMA1_STATUS_REG)},
194 #endif
195 	{ SOC15_REG_ENTRY(GC, 0, mmCP_STAT)},
196 	{ SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT1)},
197 	{ SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT2)},
198 	{ SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT3)},
199 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPF_BUSY_STAT)},
200 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPF_STALLED_STAT1)},
201 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPF_STATUS)},
202 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPC_BUSY_STAT)},
203 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPC_STALLED_STAT1)},
204 	{ SOC15_REG_ENTRY(GC, 0, mmCP_CPC_STATUS)},
205 	{ SOC15_REG_ENTRY(GC, 0, mmGB_ADDR_CONFIG)},
206 };
207 
208 static uint32_t nv_read_indexed_register(struct amdgpu_device *adev, u32 se_num,
209 					 u32 sh_num, u32 reg_offset)
210 {
211 	uint32_t val;
212 
213 	mutex_lock(&adev->grbm_idx_mutex);
214 	if (se_num != 0xffffffff || sh_num != 0xffffffff)
215 		amdgpu_gfx_select_se_sh(adev, se_num, sh_num, 0xffffffff);
216 
217 	val = RREG32(reg_offset);
218 
219 	if (se_num != 0xffffffff || sh_num != 0xffffffff)
220 		amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
221 	mutex_unlock(&adev->grbm_idx_mutex);
222 	return val;
223 }
224 
225 static uint32_t nv_get_register_value(struct amdgpu_device *adev,
226 				      bool indexed, u32 se_num,
227 				      u32 sh_num, u32 reg_offset)
228 {
229 	if (indexed) {
230 		return nv_read_indexed_register(adev, se_num, sh_num, reg_offset);
231 	} else {
232 		if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG))
233 			return adev->gfx.config.gb_addr_config;
234 		return RREG32(reg_offset);
235 	}
236 }
237 
238 static int nv_read_register(struct amdgpu_device *adev, u32 se_num,
239 			    u32 sh_num, u32 reg_offset, u32 *value)
240 {
241 	uint32_t i;
242 	struct soc15_allowed_register_entry  *en;
243 
244 	*value = 0;
245 	for (i = 0; i < ARRAY_SIZE(nv_allowed_read_registers); i++) {
246 		en = &nv_allowed_read_registers[i];
247 		if (reg_offset !=
248 		    (adev->reg_offset[en->hwip][en->inst][en->seg] + en->reg_offset))
249 			continue;
250 
251 		*value = nv_get_register_value(adev,
252 					       nv_allowed_read_registers[i].grbm_indexed,
253 					       se_num, sh_num, reg_offset);
254 		return 0;
255 	}
256 	return -EINVAL;
257 }
258 
259 #if 0
260 static void nv_gpu_pci_config_reset(struct amdgpu_device *adev)
261 {
262 	u32 i;
263 
264 	dev_info(adev->dev, "GPU pci config reset\n");
265 
266 	/* disable BM */
267 	pci_clear_master(adev->pdev);
268 	/* reset */
269 	amdgpu_pci_config_reset(adev);
270 
271 	udelay(100);
272 
273 	/* wait for asic to come out of reset */
274 	for (i = 0; i < adev->usec_timeout; i++) {
275 		u32 memsize = nbio_v2_3_get_memsize(adev);
276 		if (memsize != 0xffffffff)
277 			break;
278 		udelay(1);
279 	}
280 
281 }
282 #endif
283 
284 static int nv_asic_mode1_reset(struct amdgpu_device *adev)
285 {
286 	u32 i;
287 	int ret = 0;
288 
289 	amdgpu_atombios_scratch_regs_engine_hung(adev, true);
290 
291 	dev_info(adev->dev, "GPU mode1 reset\n");
292 
293 	/* disable BM */
294 	pci_clear_master(adev->pdev);
295 
296 	pci_save_state(adev->pdev);
297 
298 	ret = psp_gpu_reset(adev);
299 	if (ret)
300 		dev_err(adev->dev, "GPU mode1 reset failed\n");
301 
302 	pci_restore_state(adev->pdev);
303 
304 	/* wait for asic to come out of reset */
305 	for (i = 0; i < adev->usec_timeout; i++) {
306 		u32 memsize = adev->nbio.funcs->get_memsize(adev);
307 
308 		if (memsize != 0xffffffff)
309 			break;
310 		udelay(1);
311 	}
312 
313 	amdgpu_atombios_scratch_regs_engine_hung(adev, false);
314 
315 	return ret;
316 }
317 
318 static bool nv_asic_supports_baco(struct amdgpu_device *adev)
319 {
320 	struct smu_context *smu = &adev->smu;
321 
322 	if (smu_baco_is_support(smu))
323 		return true;
324 	else
325 		return false;
326 }
327 
328 static enum amd_reset_method
329 nv_asic_reset_method(struct amdgpu_device *adev)
330 {
331 	struct smu_context *smu = &adev->smu;
332 
333 	if (!amdgpu_sriov_vf(adev) && smu_baco_is_support(smu))
334 		return AMD_RESET_METHOD_BACO;
335 	else
336 		return AMD_RESET_METHOD_MODE1;
337 }
338 
339 static int nv_asic_reset(struct amdgpu_device *adev)
340 {
341 
342 	/* FIXME: it doesn't work since vega10 */
343 #if 0
344 	amdgpu_atombios_scratch_regs_engine_hung(adev, true);
345 
346 	nv_gpu_pci_config_reset(adev);
347 
348 	amdgpu_atombios_scratch_regs_engine_hung(adev, false);
349 #endif
350 	int ret = 0;
351 	struct smu_context *smu = &adev->smu;
352 
353 	if (nv_asic_reset_method(adev) == AMD_RESET_METHOD_BACO) {
354 		if (!adev->in_suspend)
355 			amdgpu_inc_vram_lost(adev);
356 		ret = smu_baco_enter(smu);
357 		if (ret)
358 			return ret;
359 		ret = smu_baco_exit(smu);
360 		if (ret)
361 			return ret;
362 	} else {
363 		if (!adev->in_suspend)
364 			amdgpu_inc_vram_lost(adev);
365 		ret = nv_asic_mode1_reset(adev);
366 	}
367 
368 	return ret;
369 }
370 
371 static int nv_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk)
372 {
373 	/* todo */
374 	return 0;
375 }
376 
377 static int nv_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
378 {
379 	/* todo */
380 	return 0;
381 }
382 
383 static void nv_pcie_gen3_enable(struct amdgpu_device *adev)
384 {
385 	if (pci_is_root_bus(adev->pdev->bus))
386 		return;
387 
388 	if (amdgpu_pcie_gen2 == 0)
389 		return;
390 
391 	if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
392 					CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
393 		return;
394 
395 	/* todo */
396 }
397 
398 static void nv_program_aspm(struct amdgpu_device *adev)
399 {
400 
401 	if (amdgpu_aspm == 0)
402 		return;
403 
404 	/* todo */
405 }
406 
407 static void nv_enable_doorbell_aperture(struct amdgpu_device *adev,
408 					bool enable)
409 {
410 	adev->nbio.funcs->enable_doorbell_aperture(adev, enable);
411 	adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
412 }
413 
414 static const struct amdgpu_ip_block_version nv_common_ip_block =
415 {
416 	.type = AMD_IP_BLOCK_TYPE_COMMON,
417 	.major = 1,
418 	.minor = 0,
419 	.rev = 0,
420 	.funcs = &nv_common_ip_funcs,
421 };
422 
423 static int nv_reg_base_init(struct amdgpu_device *adev)
424 {
425 	int r;
426 
427 	if (amdgpu_discovery) {
428 		r = amdgpu_discovery_reg_base_init(adev);
429 		if (r) {
430 			DRM_WARN("failed to init reg base from ip discovery table, "
431 					"fallback to legacy init method\n");
432 			goto legacy_init;
433 		}
434 
435 		return 0;
436 	}
437 
438 legacy_init:
439 	switch (adev->asic_type) {
440 	case CHIP_NAVI10:
441 		navi10_reg_base_init(adev);
442 		break;
443 	case CHIP_NAVI14:
444 		navi14_reg_base_init(adev);
445 		break;
446 	case CHIP_NAVI12:
447 		navi12_reg_base_init(adev);
448 		break;
449 	default:
450 		return -EINVAL;
451 	}
452 
453 	return 0;
454 }
455 
456 int nv_set_ip_blocks(struct amdgpu_device *adev)
457 {
458 	int r;
459 
460 	/* Set IP register base before any HW register access */
461 	r = nv_reg_base_init(adev);
462 	if (r)
463 		return r;
464 
465 	adev->nbio.funcs = &nbio_v2_3_funcs;
466 	adev->nbio.hdp_flush_reg = &nbio_v2_3_hdp_flush_reg;
467 
468 	adev->nbio.funcs->detect_hw_virt(adev);
469 
470 	if (amdgpu_sriov_vf(adev))
471 		adev->virt.ops = &xgpu_nv_virt_ops;
472 
473 	switch (adev->asic_type) {
474 	case CHIP_NAVI10:
475 	case CHIP_NAVI14:
476 		amdgpu_device_ip_block_add(adev, &nv_common_ip_block);
477 		amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block);
478 		amdgpu_device_ip_block_add(adev, &navi10_ih_ip_block);
479 		amdgpu_device_ip_block_add(adev, &psp_v11_0_ip_block);
480 		if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP &&
481 		    !amdgpu_sriov_vf(adev))
482 			amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block);
483 		if (adev->enable_virtual_display || amdgpu_sriov_vf(adev))
484 			amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block);
485 #if defined(CONFIG_DRM_AMD_DC)
486 		else if (amdgpu_device_has_dc_support(adev))
487 			amdgpu_device_ip_block_add(adev, &dm_ip_block);
488 #endif
489 		amdgpu_device_ip_block_add(adev, &gfx_v10_0_ip_block);
490 		amdgpu_device_ip_block_add(adev, &sdma_v5_0_ip_block);
491 		if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT &&
492 		    !amdgpu_sriov_vf(adev))
493 			amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block);
494 		amdgpu_device_ip_block_add(adev, &vcn_v2_0_ip_block);
495 		amdgpu_device_ip_block_add(adev, &jpeg_v2_0_ip_block);
496 		if (adev->enable_mes)
497 			amdgpu_device_ip_block_add(adev, &mes_v10_1_ip_block);
498 		break;
499 	case CHIP_NAVI12:
500 		amdgpu_device_ip_block_add(adev, &nv_common_ip_block);
501 		amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block);
502 		amdgpu_device_ip_block_add(adev, &navi10_ih_ip_block);
503 		amdgpu_device_ip_block_add(adev, &psp_v11_0_ip_block);
504 		if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP &&
505 		    !amdgpu_sriov_vf(adev))
506 			amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block);
507 		if (adev->enable_virtual_display || amdgpu_sriov_vf(adev))
508 			amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block);
509 #if defined(CONFIG_DRM_AMD_DC)
510 		else if (amdgpu_device_has_dc_support(adev))
511 			amdgpu_device_ip_block_add(adev, &dm_ip_block);
512 #endif
513 		amdgpu_device_ip_block_add(adev, &gfx_v10_0_ip_block);
514 		amdgpu_device_ip_block_add(adev, &sdma_v5_0_ip_block);
515 		if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT &&
516 		    !amdgpu_sriov_vf(adev))
517 			amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block);
518 		amdgpu_device_ip_block_add(adev, &vcn_v2_0_ip_block);
519 		amdgpu_device_ip_block_add(adev, &jpeg_v2_0_ip_block);
520 		break;
521 	default:
522 		return -EINVAL;
523 	}
524 
525 	return 0;
526 }
527 
528 static uint32_t nv_get_rev_id(struct amdgpu_device *adev)
529 {
530 	return adev->nbio.funcs->get_rev_id(adev);
531 }
532 
533 static void nv_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring)
534 {
535 	adev->nbio.funcs->hdp_flush(adev, ring);
536 }
537 
538 static void nv_invalidate_hdp(struct amdgpu_device *adev,
539 				struct amdgpu_ring *ring)
540 {
541 	if (!ring || !ring->funcs->emit_wreg) {
542 		WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_READ_CACHE_INVALIDATE, 1);
543 	} else {
544 		amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
545 					HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1);
546 	}
547 }
548 
549 static bool nv_need_full_reset(struct amdgpu_device *adev)
550 {
551 	return true;
552 }
553 
554 static void nv_get_pcie_usage(struct amdgpu_device *adev,
555 			      uint64_t *count0,
556 			      uint64_t *count1)
557 {
558 	/*TODO*/
559 }
560 
561 static bool nv_need_reset_on_init(struct amdgpu_device *adev)
562 {
563 #if 0
564 	u32 sol_reg;
565 
566 	if (adev->flags & AMD_IS_APU)
567 		return false;
568 
569 	/* Check sOS sign of life register to confirm sys driver and sOS
570 	 * are already been loaded.
571 	 */
572 	sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
573 	if (sol_reg)
574 		return true;
575 #endif
576 	/* TODO: re-enable it when mode1 reset is functional */
577 	return false;
578 }
579 
580 static uint64_t nv_get_pcie_replay_count(struct amdgpu_device *adev)
581 {
582 
583 	/* TODO
584 	 * dummy implement for pcie_replay_count sysfs interface
585 	 * */
586 
587 	return 0;
588 }
589 
590 static void nv_init_doorbell_index(struct amdgpu_device *adev)
591 {
592 	adev->doorbell_index.kiq = AMDGPU_NAVI10_DOORBELL_KIQ;
593 	adev->doorbell_index.mec_ring0 = AMDGPU_NAVI10_DOORBELL_MEC_RING0;
594 	adev->doorbell_index.mec_ring1 = AMDGPU_NAVI10_DOORBELL_MEC_RING1;
595 	adev->doorbell_index.mec_ring2 = AMDGPU_NAVI10_DOORBELL_MEC_RING2;
596 	adev->doorbell_index.mec_ring3 = AMDGPU_NAVI10_DOORBELL_MEC_RING3;
597 	adev->doorbell_index.mec_ring4 = AMDGPU_NAVI10_DOORBELL_MEC_RING4;
598 	adev->doorbell_index.mec_ring5 = AMDGPU_NAVI10_DOORBELL_MEC_RING5;
599 	adev->doorbell_index.mec_ring6 = AMDGPU_NAVI10_DOORBELL_MEC_RING6;
600 	adev->doorbell_index.mec_ring7 = AMDGPU_NAVI10_DOORBELL_MEC_RING7;
601 	adev->doorbell_index.userqueue_start = AMDGPU_NAVI10_DOORBELL_USERQUEUE_START;
602 	adev->doorbell_index.userqueue_end = AMDGPU_NAVI10_DOORBELL_USERQUEUE_END;
603 	adev->doorbell_index.gfx_ring0 = AMDGPU_NAVI10_DOORBELL_GFX_RING0;
604 	adev->doorbell_index.gfx_ring1 = AMDGPU_NAVI10_DOORBELL_GFX_RING1;
605 	adev->doorbell_index.sdma_engine[0] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0;
606 	adev->doorbell_index.sdma_engine[1] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE1;
607 	adev->doorbell_index.ih = AMDGPU_NAVI10_DOORBELL_IH;
608 	adev->doorbell_index.vcn.vcn_ring0_1 = AMDGPU_NAVI10_DOORBELL64_VCN0_1;
609 	adev->doorbell_index.vcn.vcn_ring2_3 = AMDGPU_NAVI10_DOORBELL64_VCN2_3;
610 	adev->doorbell_index.vcn.vcn_ring4_5 = AMDGPU_NAVI10_DOORBELL64_VCN4_5;
611 	adev->doorbell_index.vcn.vcn_ring6_7 = AMDGPU_NAVI10_DOORBELL64_VCN6_7;
612 	adev->doorbell_index.first_non_cp = AMDGPU_NAVI10_DOORBELL64_FIRST_NON_CP;
613 	adev->doorbell_index.last_non_cp = AMDGPU_NAVI10_DOORBELL64_LAST_NON_CP;
614 
615 	adev->doorbell_index.max_assignment = AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT << 1;
616 	adev->doorbell_index.sdma_doorbell_range = 20;
617 }
618 
619 static const struct amdgpu_asic_funcs nv_asic_funcs =
620 {
621 	.read_disabled_bios = &nv_read_disabled_bios,
622 	.read_bios_from_rom = &nv_read_bios_from_rom,
623 	.read_register = &nv_read_register,
624 	.reset = &nv_asic_reset,
625 	.reset_method = &nv_asic_reset_method,
626 	.set_vga_state = &nv_vga_set_state,
627 	.get_xclk = &nv_get_xclk,
628 	.set_uvd_clocks = &nv_set_uvd_clocks,
629 	.set_vce_clocks = &nv_set_vce_clocks,
630 	.get_config_memsize = &nv_get_config_memsize,
631 	.flush_hdp = &nv_flush_hdp,
632 	.invalidate_hdp = &nv_invalidate_hdp,
633 	.init_doorbell_index = &nv_init_doorbell_index,
634 	.need_full_reset = &nv_need_full_reset,
635 	.get_pcie_usage = &nv_get_pcie_usage,
636 	.need_reset_on_init = &nv_need_reset_on_init,
637 	.get_pcie_replay_count = &nv_get_pcie_replay_count,
638 	.supports_baco = &nv_asic_supports_baco,
639 };
640 
641 static int nv_common_early_init(void *handle)
642 {
643 #define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
644 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
645 
646 	adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
647 	adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
648 	adev->smc_rreg = NULL;
649 	adev->smc_wreg = NULL;
650 	adev->pcie_rreg = &nv_pcie_rreg;
651 	adev->pcie_wreg = &nv_pcie_wreg;
652 
653 	/* TODO: will add them during VCN v2 implementation */
654 	adev->uvd_ctx_rreg = NULL;
655 	adev->uvd_ctx_wreg = NULL;
656 
657 	adev->didt_rreg = &nv_didt_rreg;
658 	adev->didt_wreg = &nv_didt_wreg;
659 
660 	adev->asic_funcs = &nv_asic_funcs;
661 
662 	adev->rev_id = nv_get_rev_id(adev);
663 	adev->external_rev_id = 0xff;
664 	switch (adev->asic_type) {
665 	case CHIP_NAVI10:
666 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
667 			AMD_CG_SUPPORT_GFX_CGCG |
668 			AMD_CG_SUPPORT_IH_CG |
669 			AMD_CG_SUPPORT_HDP_MGCG |
670 			AMD_CG_SUPPORT_HDP_LS |
671 			AMD_CG_SUPPORT_SDMA_MGCG |
672 			AMD_CG_SUPPORT_SDMA_LS |
673 			AMD_CG_SUPPORT_MC_MGCG |
674 			AMD_CG_SUPPORT_MC_LS |
675 			AMD_CG_SUPPORT_ATHUB_MGCG |
676 			AMD_CG_SUPPORT_ATHUB_LS |
677 			AMD_CG_SUPPORT_VCN_MGCG |
678 			AMD_CG_SUPPORT_JPEG_MGCG |
679 			AMD_CG_SUPPORT_BIF_MGCG |
680 			AMD_CG_SUPPORT_BIF_LS;
681 		adev->pg_flags = AMD_PG_SUPPORT_VCN |
682 			AMD_PG_SUPPORT_VCN_DPG |
683 			AMD_PG_SUPPORT_JPEG |
684 			AMD_PG_SUPPORT_ATHUB;
685 		adev->external_rev_id = adev->rev_id + 0x1;
686 		break;
687 	case CHIP_NAVI14:
688 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
689 			AMD_CG_SUPPORT_GFX_CGCG |
690 			AMD_CG_SUPPORT_IH_CG |
691 			AMD_CG_SUPPORT_HDP_MGCG |
692 			AMD_CG_SUPPORT_HDP_LS |
693 			AMD_CG_SUPPORT_SDMA_MGCG |
694 			AMD_CG_SUPPORT_SDMA_LS |
695 			AMD_CG_SUPPORT_MC_MGCG |
696 			AMD_CG_SUPPORT_MC_LS |
697 			AMD_CG_SUPPORT_ATHUB_MGCG |
698 			AMD_CG_SUPPORT_ATHUB_LS |
699 			AMD_CG_SUPPORT_VCN_MGCG |
700 			AMD_CG_SUPPORT_JPEG_MGCG |
701 			AMD_CG_SUPPORT_BIF_MGCG |
702 			AMD_CG_SUPPORT_BIF_LS;
703 		adev->pg_flags = AMD_PG_SUPPORT_VCN |
704 			AMD_PG_SUPPORT_JPEG |
705 			AMD_PG_SUPPORT_VCN_DPG;
706 		adev->external_rev_id = adev->rev_id + 20;
707 		break;
708 	case CHIP_NAVI12:
709 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
710 			AMD_CG_SUPPORT_GFX_MGLS |
711 			AMD_CG_SUPPORT_GFX_CGCG |
712 			AMD_CG_SUPPORT_GFX_CP_LS |
713 			AMD_CG_SUPPORT_GFX_RLC_LS |
714 			AMD_CG_SUPPORT_IH_CG |
715 			AMD_CG_SUPPORT_HDP_MGCG |
716 			AMD_CG_SUPPORT_HDP_LS |
717 			AMD_CG_SUPPORT_SDMA_MGCG |
718 			AMD_CG_SUPPORT_SDMA_LS |
719 			AMD_CG_SUPPORT_MC_MGCG |
720 			AMD_CG_SUPPORT_MC_LS |
721 			AMD_CG_SUPPORT_ATHUB_MGCG |
722 			AMD_CG_SUPPORT_ATHUB_LS |
723 			AMD_CG_SUPPORT_VCN_MGCG |
724 			AMD_CG_SUPPORT_JPEG_MGCG;
725 		adev->pg_flags = AMD_PG_SUPPORT_VCN |
726 			AMD_PG_SUPPORT_VCN_DPG |
727 			AMD_PG_SUPPORT_JPEG |
728 			AMD_PG_SUPPORT_ATHUB;
729 		/* guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0,
730 		 * as a consequence, the rev_id and external_rev_id are wrong.
731 		 * workaround it by hardcoding rev_id to 0 (default value).
732 		 */
733 		if (amdgpu_sriov_vf(adev))
734 			adev->rev_id = 0;
735 		adev->external_rev_id = adev->rev_id + 0xa;
736 		break;
737 	default:
738 		/* FIXME: not supported yet */
739 		return -EINVAL;
740 	}
741 
742 	if (amdgpu_sriov_vf(adev)) {
743 		amdgpu_virt_init_setting(adev);
744 		xgpu_nv_mailbox_set_irq_funcs(adev);
745 	}
746 
747 	return 0;
748 }
749 
750 static int nv_common_late_init(void *handle)
751 {
752 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
753 
754 	if (amdgpu_sriov_vf(adev))
755 		xgpu_nv_mailbox_get_irq(adev);
756 
757 	return 0;
758 }
759 
760 static int nv_common_sw_init(void *handle)
761 {
762 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
763 
764 	if (amdgpu_sriov_vf(adev))
765 		xgpu_nv_mailbox_add_irq_id(adev);
766 
767 	return 0;
768 }
769 
770 static int nv_common_sw_fini(void *handle)
771 {
772 	return 0;
773 }
774 
775 static int nv_common_hw_init(void *handle)
776 {
777 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
778 
779 	/* enable pcie gen2/3 link */
780 	nv_pcie_gen3_enable(adev);
781 	/* enable aspm */
782 	nv_program_aspm(adev);
783 	/* setup nbio registers */
784 	adev->nbio.funcs->init_registers(adev);
785 	/* remap HDP registers to a hole in mmio space,
786 	 * for the purpose of expose those registers
787 	 * to process space
788 	 */
789 	if (adev->nbio.funcs->remap_hdp_registers)
790 		adev->nbio.funcs->remap_hdp_registers(adev);
791 	/* enable the doorbell aperture */
792 	nv_enable_doorbell_aperture(adev, true);
793 
794 	return 0;
795 }
796 
797 static int nv_common_hw_fini(void *handle)
798 {
799 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
800 
801 	/* disable the doorbell aperture */
802 	nv_enable_doorbell_aperture(adev, false);
803 
804 	return 0;
805 }
806 
807 static int nv_common_suspend(void *handle)
808 {
809 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
810 
811 	return nv_common_hw_fini(adev);
812 }
813 
814 static int nv_common_resume(void *handle)
815 {
816 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
817 
818 	return nv_common_hw_init(adev);
819 }
820 
821 static bool nv_common_is_idle(void *handle)
822 {
823 	return true;
824 }
825 
826 static int nv_common_wait_for_idle(void *handle)
827 {
828 	return 0;
829 }
830 
831 static int nv_common_soft_reset(void *handle)
832 {
833 	return 0;
834 }
835 
836 static void nv_update_hdp_mem_power_gating(struct amdgpu_device *adev,
837 					   bool enable)
838 {
839 	uint32_t hdp_clk_cntl, hdp_clk_cntl1;
840 	uint32_t hdp_mem_pwr_cntl;
841 
842 	if (!(adev->cg_flags & (AMD_CG_SUPPORT_HDP_LS |
843 				AMD_CG_SUPPORT_HDP_DS |
844 				AMD_CG_SUPPORT_HDP_SD)))
845 		return;
846 
847 	hdp_clk_cntl = hdp_clk_cntl1 = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL);
848 	hdp_mem_pwr_cntl = RREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL);
849 
850 	/* Before doing clock/power mode switch,
851 	 * forced on IPH & RC clock */
852 	hdp_clk_cntl = REG_SET_FIELD(hdp_clk_cntl, HDP_CLK_CNTL,
853 				     IPH_MEM_CLK_SOFT_OVERRIDE, 1);
854 	hdp_clk_cntl = REG_SET_FIELD(hdp_clk_cntl, HDP_CLK_CNTL,
855 				     RC_MEM_CLK_SOFT_OVERRIDE, 1);
856 	WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl);
857 
858 	/* HDP 5.0 doesn't support dynamic power mode switch,
859 	 * disable clock and power gating before any changing */
860 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
861 					 IPH_MEM_POWER_CTRL_EN, 0);
862 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
863 					 IPH_MEM_POWER_LS_EN, 0);
864 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
865 					 IPH_MEM_POWER_DS_EN, 0);
866 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
867 					 IPH_MEM_POWER_SD_EN, 0);
868 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
869 					 RC_MEM_POWER_CTRL_EN, 0);
870 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
871 					 RC_MEM_POWER_LS_EN, 0);
872 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
873 					 RC_MEM_POWER_DS_EN, 0);
874 	hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
875 					 RC_MEM_POWER_SD_EN, 0);
876 	WREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL, hdp_mem_pwr_cntl);
877 
878 	/* only one clock gating mode (LS/DS/SD) can be enabled */
879 	if (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS) {
880 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
881 						 HDP_MEM_POWER_CTRL,
882 						 IPH_MEM_POWER_LS_EN, enable);
883 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
884 						 HDP_MEM_POWER_CTRL,
885 						 RC_MEM_POWER_LS_EN, enable);
886 	} else if (adev->cg_flags & AMD_CG_SUPPORT_HDP_DS) {
887 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
888 						 HDP_MEM_POWER_CTRL,
889 						 IPH_MEM_POWER_DS_EN, enable);
890 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
891 						 HDP_MEM_POWER_CTRL,
892 						 RC_MEM_POWER_DS_EN, enable);
893 	} else if (adev->cg_flags & AMD_CG_SUPPORT_HDP_SD) {
894 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
895 						 HDP_MEM_POWER_CTRL,
896 						 IPH_MEM_POWER_SD_EN, enable);
897 		/* RC should not use shut down mode, fallback to ds */
898 		hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl,
899 						 HDP_MEM_POWER_CTRL,
900 						 RC_MEM_POWER_DS_EN, enable);
901 	}
902 
903 	WREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL, hdp_mem_pwr_cntl);
904 
905 	/* restore IPH & RC clock override after clock/power mode changing */
906 	WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl1);
907 }
908 
909 static void nv_update_hdp_clock_gating(struct amdgpu_device *adev,
910 				       bool enable)
911 {
912 	uint32_t hdp_clk_cntl;
913 
914 	if (!(adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
915 		return;
916 
917 	hdp_clk_cntl = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL);
918 
919 	if (enable) {
920 		hdp_clk_cntl &=
921 			~(uint32_t)
922 			  (HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK |
923 			   HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK |
924 			   HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK |
925 			   HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK |
926 			   HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK |
927 			   HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK);
928 	} else {
929 		hdp_clk_cntl |= HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK |
930 			HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK |
931 			HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK |
932 			HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK |
933 			HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK |
934 			HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK;
935 	}
936 
937 	WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl);
938 }
939 
940 static int nv_common_set_clockgating_state(void *handle,
941 					   enum amd_clockgating_state state)
942 {
943 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
944 
945 	if (amdgpu_sriov_vf(adev))
946 		return 0;
947 
948 	switch (adev->asic_type) {
949 	case CHIP_NAVI10:
950 	case CHIP_NAVI14:
951 	case CHIP_NAVI12:
952 		adev->nbio.funcs->update_medium_grain_clock_gating(adev,
953 				state == AMD_CG_STATE_GATE);
954 		adev->nbio.funcs->update_medium_grain_light_sleep(adev,
955 				state == AMD_CG_STATE_GATE);
956 		nv_update_hdp_mem_power_gating(adev,
957 				   state == AMD_CG_STATE_GATE);
958 		nv_update_hdp_clock_gating(adev,
959 				state == AMD_CG_STATE_GATE);
960 		break;
961 	default:
962 		break;
963 	}
964 	return 0;
965 }
966 
967 static int nv_common_set_powergating_state(void *handle,
968 					   enum amd_powergating_state state)
969 {
970 	/* TODO */
971 	return 0;
972 }
973 
974 static void nv_common_get_clockgating_state(void *handle, u32 *flags)
975 {
976 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
977 	uint32_t tmp;
978 
979 	if (amdgpu_sriov_vf(adev))
980 		*flags = 0;
981 
982 	adev->nbio.funcs->get_clockgating_state(adev, flags);
983 
984 	/* AMD_CG_SUPPORT_HDP_MGCG */
985 	tmp = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL);
986 	if (!(tmp & (HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK |
987 		     HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK |
988 		     HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK |
989 		     HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK |
990 		     HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK |
991 		     HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK)))
992 		*flags |= AMD_CG_SUPPORT_HDP_MGCG;
993 
994 	/* AMD_CG_SUPPORT_HDP_LS/DS/SD */
995 	tmp = RREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL);
996 	if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK)
997 		*flags |= AMD_CG_SUPPORT_HDP_LS;
998 	else if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_DS_EN_MASK)
999 		*flags |= AMD_CG_SUPPORT_HDP_DS;
1000 	else if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_SD_EN_MASK)
1001 		*flags |= AMD_CG_SUPPORT_HDP_SD;
1002 
1003 	return;
1004 }
1005 
1006 static const struct amd_ip_funcs nv_common_ip_funcs = {
1007 	.name = "nv_common",
1008 	.early_init = nv_common_early_init,
1009 	.late_init = nv_common_late_init,
1010 	.sw_init = nv_common_sw_init,
1011 	.sw_fini = nv_common_sw_fini,
1012 	.hw_init = nv_common_hw_init,
1013 	.hw_fini = nv_common_hw_fini,
1014 	.suspend = nv_common_suspend,
1015 	.resume = nv_common_resume,
1016 	.is_idle = nv_common_is_idle,
1017 	.wait_for_idle = nv_common_wait_for_idle,
1018 	.soft_reset = nv_common_soft_reset,
1019 	.set_clockgating_state = nv_common_set_clockgating_state,
1020 	.set_powergating_state = nv_common_set_powergating_state,
1021 	.get_clockgating_state = nv_common_get_clockgating_state,
1022 };
1023