xref: /linux/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c (revision 86fa0b9830a9b114952d2d8766a3fb7c6c7922be)
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 (amdgpu_ip_version(adev, 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 	case IP_VERSION(11, 5, 2):
133 		err = psp_init_asd_microcode(psp, ucode_prefix);
134 		if (err)
135 			return err;
136 		err = psp_init_toc_microcode(psp, ucode_prefix);
137 		break;
138 	default:
139 		BUG();
140 	}
141 
142 	return err;
143 }
144 
145 static int psp_v11_0_wait_for_bootloader(struct psp_context *psp)
146 {
147 	struct amdgpu_device *adev = psp->adev;
148 
149 	int ret;
150 	int retry_loop;
151 
152 	for (retry_loop = 0; retry_loop < 10; retry_loop++) {
153 		/* Wait for bootloader to signify that is
154 		    ready having bit 31 of C2PMSG_35 set to 1 */
155 		ret = psp_wait_for(psp,
156 				   SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
157 				   0x80000000,
158 				   0x80000000,
159 				   false);
160 
161 		if (ret == 0)
162 			return 0;
163 	}
164 
165 	return ret;
166 }
167 
168 static bool psp_v11_0_is_sos_alive(struct psp_context *psp)
169 {
170 	struct amdgpu_device *adev = psp->adev;
171 	uint32_t sol_reg;
172 
173 	sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
174 
175 	return sol_reg != 0x0;
176 }
177 
178 static int psp_v11_0_bootloader_load_component(struct psp_context  	*psp,
179 					       struct psp_bin_desc 	*bin_desc,
180 					       enum psp_bootloader_cmd  bl_cmd)
181 {
182 	int ret;
183 	uint32_t psp_gfxdrv_command_reg = 0;
184 	struct amdgpu_device *adev = psp->adev;
185 
186 	/* Check sOS sign of life register to confirm sys driver and sOS
187 	 * are already been loaded.
188 	 */
189 	if (psp_v11_0_is_sos_alive(psp))
190 		return 0;
191 
192 	ret = psp_v11_0_wait_for_bootloader(psp);
193 	if (ret)
194 		return ret;
195 
196 	/* Copy PSP System Driver binary to memory */
197 	psp_copy_fw(psp, bin_desc->start_addr, bin_desc->size_bytes);
198 
199 	/* Provide the sys driver to bootloader */
200 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
201 	       (uint32_t)(psp->fw_pri_mc_addr >> 20));
202 	psp_gfxdrv_command_reg = bl_cmd;
203 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
204 	       psp_gfxdrv_command_reg);
205 
206 	ret = psp_v11_0_wait_for_bootloader(psp);
207 
208 	return ret;
209 }
210 
211 static int psp_v11_0_bootloader_load_kdb(struct psp_context *psp)
212 {
213 	return psp_v11_0_bootloader_load_component(psp, &psp->kdb, PSP_BL__LOAD_KEY_DATABASE);
214 }
215 
216 static int psp_v11_0_bootloader_load_spl(struct psp_context *psp)
217 {
218 	return psp_v11_0_bootloader_load_component(psp, &psp->spl, PSP_BL__LOAD_TOS_SPL_TABLE);
219 }
220 
221 static int psp_v11_0_bootloader_load_sysdrv(struct psp_context *psp)
222 {
223 	return psp_v11_0_bootloader_load_component(psp, &psp->sys, PSP_BL__LOAD_SYSDRV);
224 }
225 
226 static int psp_v11_0_bootloader_load_sos(struct psp_context *psp)
227 {
228 	int ret;
229 	unsigned int psp_gfxdrv_command_reg = 0;
230 	struct amdgpu_device *adev = psp->adev;
231 
232 	/* Check sOS sign of life register to confirm sys driver and sOS
233 	 * are already been loaded.
234 	 */
235 	if (psp_v11_0_is_sos_alive(psp))
236 		return 0;
237 
238 	ret = psp_v11_0_wait_for_bootloader(psp);
239 	if (ret)
240 		return ret;
241 
242 	/* Copy Secure OS binary to PSP memory */
243 	psp_copy_fw(psp, psp->sos.start_addr, psp->sos.size_bytes);
244 
245 	/* Provide the PSP secure OS to bootloader */
246 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
247 	       (uint32_t)(psp->fw_pri_mc_addr >> 20));
248 	psp_gfxdrv_command_reg = PSP_BL__LOAD_SOSDRV;
249 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
250 	       psp_gfxdrv_command_reg);
251 
252 	/* there might be handshake issue with hardware which needs delay */
253 	mdelay(20);
254 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81),
255 			   RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81),
256 			   0, true);
257 
258 	return ret;
259 }
260 
261 static int psp_v11_0_ring_stop(struct psp_context *psp,
262 			      enum psp_ring_type ring_type)
263 {
264 	int ret = 0;
265 	struct amdgpu_device *adev = psp->adev;
266 
267 	/* Write the ring destroy command*/
268 	if (amdgpu_sriov_vf(adev))
269 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
270 				     GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING);
271 	else
272 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
273 				     GFX_CTRL_CMD_ID_DESTROY_RINGS);
274 
275 	/* there might be handshake issue with hardware which needs delay */
276 	mdelay(20);
277 
278 	/* Wait for response flag (bit 31) */
279 	if (amdgpu_sriov_vf(adev))
280 		ret = psp_wait_for(
281 			psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
282 			MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, false);
283 	else
284 		ret = psp_wait_for(
285 			psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
286 			MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, false);
287 
288 	return ret;
289 }
290 
291 static int psp_v11_0_ring_create(struct psp_context *psp,
292 				enum psp_ring_type ring_type)
293 {
294 	int ret = 0;
295 	unsigned int psp_ring_reg = 0;
296 	struct psp_ring *ring = &psp->km_ring;
297 	struct amdgpu_device *adev = psp->adev;
298 
299 	if (amdgpu_sriov_vf(adev)) {
300 		ring->ring_wptr = 0;
301 		ret = psp_v11_0_ring_stop(psp, ring_type);
302 		if (ret) {
303 			DRM_ERROR("psp_v11_0_ring_stop_sriov failed!\n");
304 			return ret;
305 		}
306 
307 		/* Write low address of the ring to C2PMSG_102 */
308 		psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
309 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg);
310 		/* Write high address of the ring to C2PMSG_103 */
311 		psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
312 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg);
313 
314 		/* Write the ring initialization command to C2PMSG_101 */
315 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
316 					     GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
317 
318 		/* there might be handshake issue with hardware which needs delay */
319 		mdelay(20);
320 
321 		/* Wait for response flag (bit 31) in C2PMSG_101 */
322 		ret = psp_wait_for(
323 			psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
324 			MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, false);
325 
326 	} else {
327 		/* Wait for sOS ready for ring creation */
328 		ret = psp_wait_for(
329 			psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
330 			MBOX_TOS_READY_FLAG, MBOX_TOS_READY_MASK, false);
331 		if (ret) {
332 			DRM_ERROR("Failed to wait for sOS ready for ring creation\n");
333 			return ret;
334 		}
335 
336 		/* Write low address of the ring to C2PMSG_69 */
337 		psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
338 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
339 		/* Write high address of the ring to C2PMSG_70 */
340 		psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
341 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
342 		/* Write size of ring to C2PMSG_71 */
343 		psp_ring_reg = ring->ring_size;
344 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
345 		/* Write the ring initialization command to C2PMSG_64 */
346 		psp_ring_reg = ring_type;
347 		psp_ring_reg = psp_ring_reg << 16;
348 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
349 
350 		/* there might be handshake issue with hardware which needs delay */
351 		mdelay(20);
352 
353 		/* Wait for response flag (bit 31) in C2PMSG_64 */
354 		ret = psp_wait_for(
355 			psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
356 			MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, false);
357 	}
358 
359 	return ret;
360 }
361 
362 
363 static int psp_v11_0_ring_destroy(struct psp_context *psp,
364 				 enum psp_ring_type ring_type)
365 {
366 	int ret = 0;
367 	struct psp_ring *ring = &psp->km_ring;
368 	struct amdgpu_device *adev = psp->adev;
369 
370 	ret = psp_v11_0_ring_stop(psp, ring_type);
371 	if (ret)
372 		DRM_ERROR("Fail to stop psp ring\n");
373 
374 	amdgpu_bo_free_kernel(&adev->firmware.rbuf,
375 			      &ring->ring_mem_mc_addr,
376 			      (void **)&ring->ring_mem);
377 
378 	return ret;
379 }
380 
381 static int psp_v11_0_mode1_reset(struct psp_context *psp)
382 {
383 	int ret;
384 	uint32_t offset;
385 	struct amdgpu_device *adev = psp->adev;
386 
387 	offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64);
388 
389 	ret = psp_wait_for(psp, offset, MBOX_TOS_READY_FLAG,
390 			   MBOX_TOS_READY_MASK, false);
391 
392 	if (ret) {
393 		DRM_INFO("psp is not working correctly before mode1 reset!\n");
394 		return -EINVAL;
395 	}
396 
397 	/*send the mode 1 reset command*/
398 	WREG32(offset, GFX_CTRL_CMD_ID_MODE1_RST);
399 
400 	msleep(500);
401 
402 	offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33);
403 
404 	ret = psp_wait_for(psp, offset, MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK,
405 			   false);
406 
407 	if (ret) {
408 		DRM_INFO("psp mode 1 reset failed!\n");
409 		return -EINVAL;
410 	}
411 
412 	DRM_INFO("psp mode1 reset succeed \n");
413 
414 	return 0;
415 }
416 
417 static int psp_v11_0_memory_training_send_msg(struct psp_context *psp, int msg)
418 {
419 	int ret;
420 	int i;
421 	uint32_t data_32;
422 	int max_wait;
423 	struct amdgpu_device *adev = psp->adev;
424 
425 	data_32 = (psp->mem_train_ctx.c2p_train_data_offset >> 20);
426 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, data_32);
427 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, msg);
428 
429 	max_wait = MEM_TRAIN_SEND_MSG_TIMEOUT_US / adev->usec_timeout;
430 	for (i = 0; i < max_wait; i++) {
431 		ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
432 				   0x80000000, 0x80000000, false);
433 		if (ret == 0)
434 			break;
435 	}
436 	if (i < max_wait)
437 		ret = 0;
438 	else
439 		ret = -ETIME;
440 
441 	DRM_DEBUG("training %s %s, cost %d @ %d ms\n",
442 		  (msg == PSP_BL__DRAM_SHORT_TRAIN) ? "short" : "long",
443 		  (ret == 0) ? "succeed" : "failed",
444 		  i, adev->usec_timeout/1000);
445 	return ret;
446 }
447 
448 /*
449  * save and restore process
450  */
451 static int psp_v11_0_memory_training(struct psp_context *psp, uint32_t ops)
452 {
453 	struct psp_memory_training_context *ctx = &psp->mem_train_ctx;
454 	uint32_t *pcache = (uint32_t *)ctx->sys_cache;
455 	struct amdgpu_device *adev = psp->adev;
456 	uint32_t p2c_header[4];
457 	uint32_t sz;
458 	void *buf;
459 	int ret, idx;
460 
461 	if (ctx->init == PSP_MEM_TRAIN_NOT_SUPPORT) {
462 		DRM_DEBUG("Memory training is not supported.\n");
463 		return 0;
464 	} else if (ctx->init != PSP_MEM_TRAIN_INIT_SUCCESS) {
465 		DRM_ERROR("Memory training initialization failure.\n");
466 		return -EINVAL;
467 	}
468 
469 	if (psp_v11_0_is_sos_alive(psp)) {
470 		DRM_DEBUG("SOS is alive, skip memory training.\n");
471 		return 0;
472 	}
473 
474 	amdgpu_device_vram_access(adev, ctx->p2c_train_data_offset, p2c_header, sizeof(p2c_header), false);
475 	DRM_DEBUG("sys_cache[%08x,%08x,%08x,%08x] p2c_header[%08x,%08x,%08x,%08x]\n",
476 		  pcache[0], pcache[1], pcache[2], pcache[3],
477 		  p2c_header[0], p2c_header[1], p2c_header[2], p2c_header[3]);
478 
479 	if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
480 		DRM_DEBUG("Short training depends on restore.\n");
481 		ops |= PSP_MEM_TRAIN_RESTORE;
482 	}
483 
484 	if ((ops & PSP_MEM_TRAIN_RESTORE) &&
485 	    pcache[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
486 		DRM_DEBUG("sys_cache[0] is invalid, restore depends on save.\n");
487 		ops |= PSP_MEM_TRAIN_SAVE;
488 	}
489 
490 	if (p2c_header[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
491 	    !(pcache[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
492 	      pcache[3] == p2c_header[3])) {
493 		DRM_DEBUG("sys_cache is invalid or out-of-date, need save training data to sys_cache.\n");
494 		ops |= PSP_MEM_TRAIN_SAVE;
495 	}
496 
497 	if ((ops & PSP_MEM_TRAIN_SAVE) &&
498 	    p2c_header[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
499 		DRM_DEBUG("p2c_header[0] is invalid, save depends on long training.\n");
500 		ops |= PSP_MEM_TRAIN_SEND_LONG_MSG;
501 	}
502 
503 	if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
504 		ops &= ~PSP_MEM_TRAIN_SEND_SHORT_MSG;
505 		ops |= PSP_MEM_TRAIN_SAVE;
506 	}
507 
508 	DRM_DEBUG("Memory training ops:%x.\n", ops);
509 
510 	if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
511 		/*
512 		 * Long training will encroach a certain amount on the bottom of VRAM;
513 		 * save the content from the bottom of VRAM to system memory
514 		 * before training, and restore it after training to avoid
515 		 * VRAM corruption.
516 		 */
517 		sz = BIST_MEM_TRAINING_ENCROACHED_SIZE;
518 
519 		if (adev->gmc.visible_vram_size < sz || !adev->mman.aper_base_kaddr) {
520 			DRM_ERROR("visible_vram_size %llx or aper_base_kaddr %p is not initialized.\n",
521 				  adev->gmc.visible_vram_size,
522 				  adev->mman.aper_base_kaddr);
523 			return -EINVAL;
524 		}
525 
526 		buf = vmalloc(sz);
527 		if (!buf) {
528 			DRM_ERROR("failed to allocate system memory.\n");
529 			return -ENOMEM;
530 		}
531 
532 		if (drm_dev_enter(adev_to_drm(adev), &idx)) {
533 			memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
534 			ret = psp_v11_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
535 			if (ret) {
536 				DRM_ERROR("Send long training msg failed.\n");
537 				vfree(buf);
538 				drm_dev_exit(idx);
539 				return ret;
540 			}
541 
542 			memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
543 			amdgpu_device_flush_hdp(adev, NULL);
544 			vfree(buf);
545 			drm_dev_exit(idx);
546 		} else {
547 			vfree(buf);
548 			return -ENODEV;
549 		}
550 	}
551 
552 	if (ops & PSP_MEM_TRAIN_SAVE) {
553 		amdgpu_device_vram_access(psp->adev, ctx->p2c_train_data_offset, ctx->sys_cache, ctx->train_data_size, false);
554 	}
555 
556 	if (ops & PSP_MEM_TRAIN_RESTORE) {
557 		amdgpu_device_vram_access(psp->adev, ctx->c2p_train_data_offset, ctx->sys_cache, ctx->train_data_size, true);
558 	}
559 
560 	if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
561 		ret = psp_v11_0_memory_training_send_msg(psp, (amdgpu_force_long_training > 0) ?
562 							 PSP_BL__DRAM_LONG_TRAIN : PSP_BL__DRAM_SHORT_TRAIN);
563 		if (ret) {
564 			DRM_ERROR("send training msg failed.\n");
565 			return ret;
566 		}
567 	}
568 	ctx->training_cnt++;
569 	return 0;
570 }
571 
572 static uint32_t psp_v11_0_ring_get_wptr(struct psp_context *psp)
573 {
574 	uint32_t data;
575 	struct amdgpu_device *adev = psp->adev;
576 
577 	if (amdgpu_sriov_vf(adev))
578 		data = psp->km_ring.ring_wptr;
579 	else
580 		data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
581 
582 	return data;
583 }
584 
585 static void psp_v11_0_ring_set_wptr(struct psp_context *psp, uint32_t value)
586 {
587 	struct amdgpu_device *adev = psp->adev;
588 
589 	if (amdgpu_sriov_vf(adev)) {
590 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, value);
591 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_CONSUME_CMD);
592 		psp->km_ring.ring_wptr = value;
593 	} else
594 		WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value);
595 }
596 
597 static int psp_v11_0_load_usbc_pd_fw(struct psp_context *psp, uint64_t fw_pri_mc_addr)
598 {
599 	struct amdgpu_device *adev = psp->adev;
600 	uint32_t reg_status;
601 	int ret, i = 0;
602 
603 	/*
604 	 * LFB address which is aligned to 1MB address and has to be
605 	 * right-shifted by 20 so that LFB address can be passed on a 32-bit C2P
606 	 * register
607 	 */
608 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, (fw_pri_mc_addr >> 20));
609 
610 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
611 			     0x80000000, 0x80000000, false);
612 	if (ret)
613 		return ret;
614 
615 	/* Fireup interrupt so PSP can pick up the address */
616 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, (GFX_CMD_USB_PD_USE_LFB << 16));
617 
618 	/* FW load takes very long time */
619 	do {
620 		msleep(1000);
621 		reg_status = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35);
622 
623 		if (reg_status & 0x80000000)
624 			goto done;
625 
626 	} while (++i < USBC_PD_POLLING_LIMIT_S);
627 
628 	return -ETIME;
629 done:
630 
631 	if ((reg_status & 0xFFFF) != 0) {
632 		DRM_ERROR("Address load failed - MP0_SMN_C2PMSG_35.Bits [15:0] = 0x%04x\n",
633 				reg_status & 0xFFFF);
634 		return -EIO;
635 	}
636 
637 	return 0;
638 }
639 
640 static int psp_v11_0_read_usbc_pd_fw(struct psp_context *psp, uint32_t *fw_ver)
641 {
642 	struct amdgpu_device *adev = psp->adev;
643 	int ret;
644 
645 	WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, C2PMSG_CMD_GFX_USB_PD_FW_VER);
646 
647 	ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
648 				     0x80000000, 0x80000000, false);
649 	if (!ret)
650 		*fw_ver = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36);
651 
652 	return ret;
653 }
654 
655 static const struct psp_funcs psp_v11_0_funcs = {
656 	.init_microcode = psp_v11_0_init_microcode,
657 	.bootloader_load_kdb = psp_v11_0_bootloader_load_kdb,
658 	.bootloader_load_spl = psp_v11_0_bootloader_load_spl,
659 	.bootloader_load_sysdrv = psp_v11_0_bootloader_load_sysdrv,
660 	.bootloader_load_sos = psp_v11_0_bootloader_load_sos,
661 	.ring_create = psp_v11_0_ring_create,
662 	.ring_stop = psp_v11_0_ring_stop,
663 	.ring_destroy = psp_v11_0_ring_destroy,
664 	.mode1_reset = psp_v11_0_mode1_reset,
665 	.mem_training = psp_v11_0_memory_training,
666 	.ring_get_wptr = psp_v11_0_ring_get_wptr,
667 	.ring_set_wptr = psp_v11_0_ring_set_wptr,
668 	.load_usbc_pd_fw = psp_v11_0_load_usbc_pd_fw,
669 	.read_usbc_pd_fw = psp_v11_0_read_usbc_pd_fw
670 };
671 
672 void psp_v11_0_set_psp_funcs(struct psp_context *psp)
673 {
674 	psp->funcs = &psp_v11_0_funcs;
675 }
676