xref: /linux/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c (revision 8a922b7728a93d837954315c98b84f6b78de0c4f)
1 /*
2  * Copyright 2018 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/module.h>
25 #include <linux/vmalloc.h>
26 #include <drm/drm_drv.h>
27 
28 #include "amdgpu.h"
29 #include "amdgpu_psp.h"
30 #include "amdgpu_ras.h"
31 #include "amdgpu_ucode.h"
32 #include "soc15_common.h"
33 #include "psp_v11_0.h"
34 
35 #include "mp/mp_11_0_offset.h"
36 #include "mp/mp_11_0_sh_mask.h"
37 #include "gc/gc_9_0_offset.h"
38 #include "sdma0/sdma0_4_0_offset.h"
39 #include "nbio/nbio_7_4_offset.h"
40 
41 #include "oss/osssys_4_0_offset.h"
42 #include "oss/osssys_4_0_sh_mask.h"
43 
44 MODULE_FIRMWARE("amdgpu/vega20_sos.bin");
45 MODULE_FIRMWARE("amdgpu/vega20_asd.bin");
46 MODULE_FIRMWARE("amdgpu/vega20_ta.bin");
47 MODULE_FIRMWARE("amdgpu/navi10_sos.bin");
48 MODULE_FIRMWARE("amdgpu/navi10_asd.bin");
49 MODULE_FIRMWARE("amdgpu/navi10_ta.bin");
50 MODULE_FIRMWARE("amdgpu/navi14_sos.bin");
51 MODULE_FIRMWARE("amdgpu/navi14_asd.bin");
52 MODULE_FIRMWARE("amdgpu/navi14_ta.bin");
53 MODULE_FIRMWARE("amdgpu/navi12_sos.bin");
54 MODULE_FIRMWARE("amdgpu/navi12_asd.bin");
55 MODULE_FIRMWARE("amdgpu/navi12_ta.bin");
56 MODULE_FIRMWARE("amdgpu/navi12_cap.bin");
57 MODULE_FIRMWARE("amdgpu/arcturus_sos.bin");
58 MODULE_FIRMWARE("amdgpu/arcturus_asd.bin");
59 MODULE_FIRMWARE("amdgpu/arcturus_ta.bin");
60 MODULE_FIRMWARE("amdgpu/sienna_cichlid_sos.bin");
61 MODULE_FIRMWARE("amdgpu/sienna_cichlid_ta.bin");
62 MODULE_FIRMWARE("amdgpu/sienna_cichlid_cap.bin");
63 MODULE_FIRMWARE("amdgpu/navy_flounder_sos.bin");
64 MODULE_FIRMWARE("amdgpu/navy_flounder_ta.bin");
65 MODULE_FIRMWARE("amdgpu/vangogh_asd.bin");
66 MODULE_FIRMWARE("amdgpu/vangogh_toc.bin");
67 MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_sos.bin");
68 MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_ta.bin");
69 MODULE_FIRMWARE("amdgpu/beige_goby_sos.bin");
70 MODULE_FIRMWARE("amdgpu/beige_goby_ta.bin");
71 
72 /* address block */
73 #define smnMP1_FIRMWARE_FLAGS		0x3010024
74 /* navi10 reg offset define */
75 #define mmRLC_GPM_UCODE_ADDR_NV10	0x5b61
76 #define mmRLC_GPM_UCODE_DATA_NV10	0x5b62
77 #define mmSDMA0_UCODE_ADDR_NV10		0x5880
78 #define mmSDMA0_UCODE_DATA_NV10		0x5881
79 /* memory training timeout define */
80 #define MEM_TRAIN_SEND_MSG_TIMEOUT_US	3000000
81 
82 /* For large FW files the time to complete can be very long */
83 #define USBC_PD_POLLING_LIMIT_S 240
84 
85 /* Read USB-PD from LFB */
86 #define GFX_CMD_USB_PD_USE_LFB 0x480
87 
88 static int psp_v11_0_init_microcode(struct psp_context *psp)
89 {
90 	struct amdgpu_device *adev = psp->adev;
91 	char ucode_prefix[30];
92 	int err = 0;
93 
94 	DRM_DEBUG("\n");
95 
96 	amdgpu_ucode_ip_version_decode(adev, MP0_HWIP, ucode_prefix, sizeof(ucode_prefix));
97 
98 	switch (adev->ip_versions[MP0_HWIP][0]) {
99 	case IP_VERSION(11, 0, 2):
100 	case IP_VERSION(11, 0, 4):
101 		err = psp_init_sos_microcode(psp, ucode_prefix);
102 		if (err)
103 			return err;
104 		err = psp_init_asd_microcode(psp, ucode_prefix);
105 		if (err)
106 			return err;
107 		err = psp_init_ta_microcode(psp, ucode_prefix);
108 		adev->psp.securedisplay_context.context.bin_desc.size_bytes = 0;
109 		break;
110 	case IP_VERSION(11, 0, 0):
111 	case IP_VERSION(11, 0, 5):
112 	case IP_VERSION(11, 0, 9):
113 		err = psp_init_sos_microcode(psp, ucode_prefix);
114 		if (err)
115 			return err;
116 		err = psp_init_asd_microcode(psp, ucode_prefix);
117 		if (err)
118 			return err;
119 		err = psp_init_ta_microcode(psp, ucode_prefix);
120 		adev->psp.securedisplay_context.context.bin_desc.size_bytes = 0;
121 		break;
122 	case IP_VERSION(11, 0, 7):
123 	case IP_VERSION(11, 0, 11):
124 	case IP_VERSION(11, 0, 12):
125 	case IP_VERSION(11, 0, 13):
126 		err = psp_init_sos_microcode(psp, ucode_prefix);
127 		if (err)
128 			return err;
129 		err = psp_init_ta_microcode(psp, ucode_prefix);
130 		break;
131 	case IP_VERSION(11, 5, 0):
132 		err = psp_init_asd_microcode(psp, ucode_prefix);
133 		if (err)
134 			return err;
135 		err = psp_init_toc_microcode(psp, ucode_prefix);
136 		break;
137 	default:
138 		BUG();
139 	}
140 
141 	return err;
142 }
143 
144 static int psp_v11_0_wait_for_bootloader(struct psp_context *psp)
145 {
146 	struct amdgpu_device *adev = psp->adev;
147 
148 	int ret;
149 	int retry_loop;
150 
151 	for (retry_loop = 0; retry_loop < 10; retry_loop++) {
152 		/* Wait for bootloader to signify that is
153 		    ready having bit 31 of C2PMSG_35 set to 1 */
154 		ret = psp_wait_for(psp,
155 				   SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
156 				   0x80000000,
157 				   0x80000000,
158 				   false);
159 
160 		if (ret == 0)
161 			return 0;
162 	}
163 
164 	return ret;
165 }
166 
167 static bool psp_v11_0_is_sos_alive(struct psp_context *psp)
168 {
169 	struct amdgpu_device *adev = psp->adev;
170 	uint32_t sol_reg;
171 
172 	sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
173 
174 	return sol_reg != 0x0;
175 }
176 
177 static int psp_v11_0_bootloader_load_component(struct psp_context  	*psp,
178 					       struct psp_bin_desc 	*bin_desc,
179 					       enum psp_bootloader_cmd  bl_cmd)
180 {
181 	int ret;
182 	uint32_t psp_gfxdrv_command_reg = 0;
183 	struct amdgpu_device *adev = psp->adev;
184 
185 	/* Check sOS sign of life register to confirm sys driver and sOS
186 	 * are already been loaded.
187 	 */
188 	if (psp_v11_0_is_sos_alive(psp))
189 		return 0;
190 
191 	ret = psp_v11_0_wait_for_bootloader(psp);
192 	if (ret)
193 		return ret;
194 
195 	/* Copy PSP System Driver binary to memory */
196 	psp_copy_fw(psp, bin_desc->start_addr, bin_desc->size_bytes);
197 
198 	/* Provide the sys driver to bootloader */
199 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
200 	       (uint32_t)(psp->fw_pri_mc_addr >> 20));
201 	psp_gfxdrv_command_reg = bl_cmd;
202 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
203 	       psp_gfxdrv_command_reg);
204 
205 	ret = psp_v11_0_wait_for_bootloader(psp);
206 
207 	return ret;
208 }
209 
210 static int psp_v11_0_bootloader_load_kdb(struct psp_context *psp)
211 {
212 	return psp_v11_0_bootloader_load_component(psp, &psp->kdb, PSP_BL__LOAD_KEY_DATABASE);
213 }
214 
215 static int psp_v11_0_bootloader_load_spl(struct psp_context *psp)
216 {
217 	return psp_v11_0_bootloader_load_component(psp, &psp->spl, PSP_BL__LOAD_TOS_SPL_TABLE);
218 }
219 
220 static int psp_v11_0_bootloader_load_sysdrv(struct psp_context *psp)
221 {
222 	return psp_v11_0_bootloader_load_component(psp, &psp->sys, PSP_BL__LOAD_SYSDRV);
223 }
224 
225 static int psp_v11_0_bootloader_load_sos(struct psp_context *psp)
226 {
227 	int ret;
228 	unsigned int psp_gfxdrv_command_reg = 0;
229 	struct amdgpu_device *adev = psp->adev;
230 
231 	/* Check sOS sign of life register to confirm sys driver and sOS
232 	 * are already been loaded.
233 	 */
234 	if (psp_v11_0_is_sos_alive(psp))
235 		return 0;
236 
237 	ret = psp_v11_0_wait_for_bootloader(psp);
238 	if (ret)
239 		return ret;
240 
241 	/* Copy Secure OS binary to PSP memory */
242 	psp_copy_fw(psp, psp->sos.start_addr, psp->sos.size_bytes);
243 
244 	/* Provide the PSP secure OS to bootloader */
245 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
246 	       (uint32_t)(psp->fw_pri_mc_addr >> 20));
247 	psp_gfxdrv_command_reg = PSP_BL__LOAD_SOSDRV;
248 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
249 	       psp_gfxdrv_command_reg);
250 
251 	/* there might be handshake issue with hardware which needs delay */
252 	mdelay(20);
253 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81),
254 			   RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81),
255 			   0, true);
256 
257 	return ret;
258 }
259 
260 static int psp_v11_0_ring_stop(struct psp_context *psp,
261 			      enum psp_ring_type ring_type)
262 {
263 	int ret = 0;
264 	struct amdgpu_device *adev = psp->adev;
265 
266 	/* Write the ring destroy command*/
267 	if (amdgpu_sriov_vf(adev))
268 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
269 				     GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING);
270 	else
271 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
272 				     GFX_CTRL_CMD_ID_DESTROY_RINGS);
273 
274 	/* there might be handshake issue with hardware which needs delay */
275 	mdelay(20);
276 
277 	/* Wait for response flag (bit 31) */
278 	if (amdgpu_sriov_vf(adev))
279 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
280 				   0x80000000, 0x80000000, false);
281 	else
282 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
283 				   0x80000000, 0x80000000, false);
284 
285 	return ret;
286 }
287 
288 static int psp_v11_0_ring_create(struct psp_context *psp,
289 				enum psp_ring_type ring_type)
290 {
291 	int ret = 0;
292 	unsigned int psp_ring_reg = 0;
293 	struct psp_ring *ring = &psp->km_ring;
294 	struct amdgpu_device *adev = psp->adev;
295 
296 	if (amdgpu_sriov_vf(adev)) {
297 		ring->ring_wptr = 0;
298 		ret = psp_v11_0_ring_stop(psp, ring_type);
299 		if (ret) {
300 			DRM_ERROR("psp_v11_0_ring_stop_sriov failed!\n");
301 			return ret;
302 		}
303 
304 		/* Write low address of the ring to C2PMSG_102 */
305 		psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
306 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg);
307 		/* Write high address of the ring to C2PMSG_103 */
308 		psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
309 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg);
310 
311 		/* Write the ring initialization command to C2PMSG_101 */
312 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
313 					     GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
314 
315 		/* there might be handshake issue with hardware which needs delay */
316 		mdelay(20);
317 
318 		/* Wait for response flag (bit 31) in C2PMSG_101 */
319 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
320 				   0x80000000, 0x8000FFFF, false);
321 
322 	} else {
323 		/* Wait for sOS ready for ring creation */
324 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
325 				   0x80000000, 0x80000000, false);
326 		if (ret) {
327 			DRM_ERROR("Failed to wait for sOS ready for ring creation\n");
328 			return ret;
329 		}
330 
331 		/* Write low address of the ring to C2PMSG_69 */
332 		psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
333 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
334 		/* Write high address of the ring to C2PMSG_70 */
335 		psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
336 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
337 		/* Write size of ring to C2PMSG_71 */
338 		psp_ring_reg = ring->ring_size;
339 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
340 		/* Write the ring initialization command to C2PMSG_64 */
341 		psp_ring_reg = ring_type;
342 		psp_ring_reg = psp_ring_reg << 16;
343 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
344 
345 		/* there might be handshake issue with hardware which needs delay */
346 		mdelay(20);
347 
348 		/* Wait for response flag (bit 31) in C2PMSG_64 */
349 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
350 				   0x80000000, 0x8000FFFF, false);
351 	}
352 
353 	return ret;
354 }
355 
356 
357 static int psp_v11_0_ring_destroy(struct psp_context *psp,
358 				 enum psp_ring_type ring_type)
359 {
360 	int ret = 0;
361 	struct psp_ring *ring = &psp->km_ring;
362 	struct amdgpu_device *adev = psp->adev;
363 
364 	ret = psp_v11_0_ring_stop(psp, ring_type);
365 	if (ret)
366 		DRM_ERROR("Fail to stop psp ring\n");
367 
368 	amdgpu_bo_free_kernel(&adev->firmware.rbuf,
369 			      &ring->ring_mem_mc_addr,
370 			      (void **)&ring->ring_mem);
371 
372 	return ret;
373 }
374 
375 static int psp_v11_0_mode1_reset(struct psp_context *psp)
376 {
377 	int ret;
378 	uint32_t offset;
379 	struct amdgpu_device *adev = psp->adev;
380 
381 	offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64);
382 
383 	ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false);
384 
385 	if (ret) {
386 		DRM_INFO("psp is not working correctly before mode1 reset!\n");
387 		return -EINVAL;
388 	}
389 
390 	/*send the mode 1 reset command*/
391 	WREG32(offset, GFX_CTRL_CMD_ID_MODE1_RST);
392 
393 	msleep(500);
394 
395 	offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33);
396 
397 	ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false);
398 
399 	if (ret) {
400 		DRM_INFO("psp mode 1 reset failed!\n");
401 		return -EINVAL;
402 	}
403 
404 	DRM_INFO("psp mode1 reset succeed \n");
405 
406 	return 0;
407 }
408 
409 static int psp_v11_0_memory_training_send_msg(struct psp_context *psp, int msg)
410 {
411 	int ret;
412 	int i;
413 	uint32_t data_32;
414 	int max_wait;
415 	struct amdgpu_device *adev = psp->adev;
416 
417 	data_32 = (psp->mem_train_ctx.c2p_train_data_offset >> 20);
418 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, data_32);
419 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, msg);
420 
421 	max_wait = MEM_TRAIN_SEND_MSG_TIMEOUT_US / adev->usec_timeout;
422 	for (i = 0; i < max_wait; i++) {
423 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
424 				   0x80000000, 0x80000000, false);
425 		if (ret == 0)
426 			break;
427 	}
428 	if (i < max_wait)
429 		ret = 0;
430 	else
431 		ret = -ETIME;
432 
433 	DRM_DEBUG("training %s %s, cost %d @ %d ms\n",
434 		  (msg == PSP_BL__DRAM_SHORT_TRAIN) ? "short" : "long",
435 		  (ret == 0) ? "succeed" : "failed",
436 		  i, adev->usec_timeout/1000);
437 	return ret;
438 }
439 
440 /*
441  * save and restore process
442  */
443 static int psp_v11_0_memory_training(struct psp_context *psp, uint32_t ops)
444 {
445 	struct psp_memory_training_context *ctx = &psp->mem_train_ctx;
446 	uint32_t *pcache = (uint32_t *)ctx->sys_cache;
447 	struct amdgpu_device *adev = psp->adev;
448 	uint32_t p2c_header[4];
449 	uint32_t sz;
450 	void *buf;
451 	int ret, idx;
452 
453 	if (ctx->init == PSP_MEM_TRAIN_NOT_SUPPORT) {
454 		DRM_DEBUG("Memory training is not supported.\n");
455 		return 0;
456 	} else if (ctx->init != PSP_MEM_TRAIN_INIT_SUCCESS) {
457 		DRM_ERROR("Memory training initialization failure.\n");
458 		return -EINVAL;
459 	}
460 
461 	if (psp_v11_0_is_sos_alive(psp)) {
462 		DRM_DEBUG("SOS is alive, skip memory training.\n");
463 		return 0;
464 	}
465 
466 	amdgpu_device_vram_access(adev, ctx->p2c_train_data_offset, p2c_header, sizeof(p2c_header), false);
467 	DRM_DEBUG("sys_cache[%08x,%08x,%08x,%08x] p2c_header[%08x,%08x,%08x,%08x]\n",
468 		  pcache[0], pcache[1], pcache[2], pcache[3],
469 		  p2c_header[0], p2c_header[1], p2c_header[2], p2c_header[3]);
470 
471 	if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
472 		DRM_DEBUG("Short training depends on restore.\n");
473 		ops |= PSP_MEM_TRAIN_RESTORE;
474 	}
475 
476 	if ((ops & PSP_MEM_TRAIN_RESTORE) &&
477 	    pcache[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
478 		DRM_DEBUG("sys_cache[0] is invalid, restore depends on save.\n");
479 		ops |= PSP_MEM_TRAIN_SAVE;
480 	}
481 
482 	if (p2c_header[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
483 	    !(pcache[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
484 	      pcache[3] == p2c_header[3])) {
485 		DRM_DEBUG("sys_cache is invalid or out-of-date, need save training data to sys_cache.\n");
486 		ops |= PSP_MEM_TRAIN_SAVE;
487 	}
488 
489 	if ((ops & PSP_MEM_TRAIN_SAVE) &&
490 	    p2c_header[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
491 		DRM_DEBUG("p2c_header[0] is invalid, save depends on long training.\n");
492 		ops |= PSP_MEM_TRAIN_SEND_LONG_MSG;
493 	}
494 
495 	if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
496 		ops &= ~PSP_MEM_TRAIN_SEND_SHORT_MSG;
497 		ops |= PSP_MEM_TRAIN_SAVE;
498 	}
499 
500 	DRM_DEBUG("Memory training ops:%x.\n", ops);
501 
502 	if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
503 		/*
504 		 * Long training will encroach a certain amount on the bottom of VRAM;
505 		 * save the content from the bottom of VRAM to system memory
506 		 * before training, and restore it after training to avoid
507 		 * VRAM corruption.
508 		 */
509 		sz = GDDR6_MEM_TRAINING_ENCROACHED_SIZE;
510 
511 		if (adev->gmc.visible_vram_size < sz || !adev->mman.aper_base_kaddr) {
512 			DRM_ERROR("visible_vram_size %llx or aper_base_kaddr %p is not initialized.\n",
513 				  adev->gmc.visible_vram_size,
514 				  adev->mman.aper_base_kaddr);
515 			return -EINVAL;
516 		}
517 
518 		buf = vmalloc(sz);
519 		if (!buf) {
520 			DRM_ERROR("failed to allocate system memory.\n");
521 			return -ENOMEM;
522 		}
523 
524 		if (drm_dev_enter(adev_to_drm(adev), &idx)) {
525 			memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
526 			ret = psp_v11_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
527 			if (ret) {
528 				DRM_ERROR("Send long training msg failed.\n");
529 				vfree(buf);
530 				drm_dev_exit(idx);
531 				return ret;
532 			}
533 
534 			memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
535 			adev->hdp.funcs->flush_hdp(adev, NULL);
536 			vfree(buf);
537 			drm_dev_exit(idx);
538 		} else {
539 			vfree(buf);
540 			return -ENODEV;
541 		}
542 	}
543 
544 	if (ops & PSP_MEM_TRAIN_SAVE) {
545 		amdgpu_device_vram_access(psp->adev, ctx->p2c_train_data_offset, ctx->sys_cache, ctx->train_data_size, false);
546 	}
547 
548 	if (ops & PSP_MEM_TRAIN_RESTORE) {
549 		amdgpu_device_vram_access(psp->adev, ctx->c2p_train_data_offset, ctx->sys_cache, ctx->train_data_size, true);
550 	}
551 
552 	if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
553 		ret = psp_v11_0_memory_training_send_msg(psp, (amdgpu_force_long_training > 0) ?
554 							 PSP_BL__DRAM_LONG_TRAIN : PSP_BL__DRAM_SHORT_TRAIN);
555 		if (ret) {
556 			DRM_ERROR("send training msg failed.\n");
557 			return ret;
558 		}
559 	}
560 	ctx->training_cnt++;
561 	return 0;
562 }
563 
564 static uint32_t psp_v11_0_ring_get_wptr(struct psp_context *psp)
565 {
566 	uint32_t data;
567 	struct amdgpu_device *adev = psp->adev;
568 
569 	if (amdgpu_sriov_vf(adev))
570 		data = psp->km_ring.ring_wptr;
571 	else
572 		data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
573 
574 	return data;
575 }
576 
577 static void psp_v11_0_ring_set_wptr(struct psp_context *psp, uint32_t value)
578 {
579 	struct amdgpu_device *adev = psp->adev;
580 
581 	if (amdgpu_sriov_vf(adev)) {
582 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, value);
583 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_CONSUME_CMD);
584 		psp->km_ring.ring_wptr = value;
585 	} else
586 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value);
587 }
588 
589 static int psp_v11_0_load_usbc_pd_fw(struct psp_context *psp, uint64_t fw_pri_mc_addr)
590 {
591 	struct amdgpu_device *adev = psp->adev;
592 	uint32_t reg_status;
593 	int ret, i = 0;
594 
595 	/*
596 	 * LFB address which is aligned to 1MB address and has to be
597 	 * right-shifted by 20 so that LFB address can be passed on a 32-bit C2P
598 	 * register
599 	 */
600 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, (fw_pri_mc_addr >> 20));
601 
602 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
603 			     0x80000000, 0x80000000, false);
604 	if (ret)
605 		return ret;
606 
607 	/* Fireup interrupt so PSP can pick up the address */
608 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, (GFX_CMD_USB_PD_USE_LFB << 16));
609 
610 	/* FW load takes very long time */
611 	do {
612 		msleep(1000);
613 		reg_status = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35);
614 
615 		if (reg_status & 0x80000000)
616 			goto done;
617 
618 	} while (++i < USBC_PD_POLLING_LIMIT_S);
619 
620 	return -ETIME;
621 done:
622 
623 	if ((reg_status & 0xFFFF) != 0) {
624 		DRM_ERROR("Address load failed - MP0_SMN_C2PMSG_35.Bits [15:0] = 0x%04x\n",
625 				reg_status & 0xFFFF);
626 		return -EIO;
627 	}
628 
629 	return 0;
630 }
631 
632 static int psp_v11_0_read_usbc_pd_fw(struct psp_context *psp, uint32_t *fw_ver)
633 {
634 	struct amdgpu_device *adev = psp->adev;
635 	int ret;
636 
637 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, C2PMSG_CMD_GFX_USB_PD_FW_VER);
638 
639 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
640 				     0x80000000, 0x80000000, false);
641 	if (!ret)
642 		*fw_ver = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36);
643 
644 	return ret;
645 }
646 
647 static const struct psp_funcs psp_v11_0_funcs = {
648 	.init_microcode = psp_v11_0_init_microcode,
649 	.bootloader_load_kdb = psp_v11_0_bootloader_load_kdb,
650 	.bootloader_load_spl = psp_v11_0_bootloader_load_spl,
651 	.bootloader_load_sysdrv = psp_v11_0_bootloader_load_sysdrv,
652 	.bootloader_load_sos = psp_v11_0_bootloader_load_sos,
653 	.ring_create = psp_v11_0_ring_create,
654 	.ring_stop = psp_v11_0_ring_stop,
655 	.ring_destroy = psp_v11_0_ring_destroy,
656 	.mode1_reset = psp_v11_0_mode1_reset,
657 	.mem_training = psp_v11_0_memory_training,
658 	.ring_get_wptr = psp_v11_0_ring_get_wptr,
659 	.ring_set_wptr = psp_v11_0_ring_set_wptr,
660 	.load_usbc_pd_fw = psp_v11_0_load_usbc_pd_fw,
661 	.read_usbc_pd_fw = psp_v11_0_read_usbc_pd_fw
662 };
663 
664 void psp_v11_0_set_psp_funcs(struct psp_context *psp)
665 {
666 	psp->funcs = &psp_v11_0_funcs;
667 }
668