xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision c4c3c32d)
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 <linux/firmware.h>
25 
26 #include "amdgpu.h"
27 #include "amdgpu_cs.h"
28 #include "amdgpu_vcn.h"
29 #include "amdgpu_pm.h"
30 #include "soc15.h"
31 #include "soc15d.h"
32 #include "soc15_common.h"
33 
34 #include "vcn/vcn_1_0_offset.h"
35 #include "vcn/vcn_1_0_sh_mask.h"
36 #include "mmhub/mmhub_9_1_offset.h"
37 #include "mmhub/mmhub_9_1_sh_mask.h"
38 
39 #include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"
40 #include "jpeg_v1_0.h"
41 #include "vcn_v1_0.h"
42 
43 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0		0x05ab
44 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0_BASE_IDX	1
45 #define mmUVD_REG_XX_MASK_1_0			0x05ac
46 #define mmUVD_REG_XX_MASK_1_0_BASE_IDX		1
47 
48 static int vcn_v1_0_stop(struct amdgpu_device *adev);
49 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
50 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
51 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev);
52 static int vcn_v1_0_set_powergating_state(void *handle, enum amd_powergating_state state);
53 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
54 				int inst_idx, struct dpg_pause_state *new_state);
55 
56 static void vcn_v1_0_idle_work_handler(struct work_struct *work);
57 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring);
58 
59 /**
60  * vcn_v1_0_early_init - set function pointers and load microcode
61  *
62  * @handle: amdgpu_device pointer
63  *
64  * Set ring and irq function pointers
65  * Load microcode from filesystem
66  */
67 static int vcn_v1_0_early_init(void *handle)
68 {
69 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
70 
71 	adev->vcn.num_enc_rings = 2;
72 
73 	vcn_v1_0_set_dec_ring_funcs(adev);
74 	vcn_v1_0_set_enc_ring_funcs(adev);
75 	vcn_v1_0_set_irq_funcs(adev);
76 
77 	jpeg_v1_0_early_init(handle);
78 
79 	return amdgpu_vcn_early_init(adev);
80 }
81 
82 /**
83  * vcn_v1_0_sw_init - sw init for VCN block
84  *
85  * @handle: amdgpu_device pointer
86  *
87  * Load firmware and sw initialization
88  */
89 static int vcn_v1_0_sw_init(void *handle)
90 {
91 	struct amdgpu_ring *ring;
92 	int i, r;
93 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
94 
95 	/* VCN DEC TRAP */
96 	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
97 			VCN_1_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.inst->irq);
98 	if (r)
99 		return r;
100 
101 	/* VCN ENC TRAP */
102 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
103 		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, i + VCN_1_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
104 					&adev->vcn.inst->irq);
105 		if (r)
106 			return r;
107 	}
108 
109 	r = amdgpu_vcn_sw_init(adev);
110 	if (r)
111 		return r;
112 
113 	/* Override the work func */
114 	adev->vcn.idle_work.work.func = vcn_v1_0_idle_work_handler;
115 
116 	amdgpu_vcn_setup_ucode(adev);
117 
118 	r = amdgpu_vcn_resume(adev);
119 	if (r)
120 		return r;
121 
122 	ring = &adev->vcn.inst->ring_dec;
123 	ring->vm_hub = AMDGPU_MMHUB0(0);
124 	sprintf(ring->name, "vcn_dec");
125 	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
126 			     AMDGPU_RING_PRIO_DEFAULT, NULL);
127 	if (r)
128 		return r;
129 
130 	adev->vcn.internal.scratch9 = adev->vcn.inst->external.scratch9 =
131 		SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
132 	adev->vcn.internal.data0 = adev->vcn.inst->external.data0 =
133 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
134 	adev->vcn.internal.data1 = adev->vcn.inst->external.data1 =
135 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
136 	adev->vcn.internal.cmd = adev->vcn.inst->external.cmd =
137 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
138 	adev->vcn.internal.nop = adev->vcn.inst->external.nop =
139 		SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
140 
141 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
142 		enum amdgpu_ring_priority_level hw_prio = amdgpu_vcn_get_enc_ring_prio(i);
143 
144 		ring = &adev->vcn.inst->ring_enc[i];
145 		ring->vm_hub = AMDGPU_MMHUB0(0);
146 		sprintf(ring->name, "vcn_enc%d", i);
147 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
148 				     hw_prio, NULL);
149 		if (r)
150 			return r;
151 	}
152 
153 	adev->vcn.pause_dpg_mode = vcn_v1_0_pause_dpg_mode;
154 
155 	if (amdgpu_vcnfw_log) {
156 		volatile struct amdgpu_fw_shared *fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
157 
158 		fw_shared->present_flag_0 = 0;
159 		amdgpu_vcn_fwlog_init(adev->vcn.inst);
160 	}
161 
162 	r = jpeg_v1_0_sw_init(handle);
163 
164 	return r;
165 }
166 
167 /**
168  * vcn_v1_0_sw_fini - sw fini for VCN block
169  *
170  * @handle: amdgpu_device pointer
171  *
172  * VCN suspend and free up sw allocation
173  */
174 static int vcn_v1_0_sw_fini(void *handle)
175 {
176 	int r;
177 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
178 
179 	r = amdgpu_vcn_suspend(adev);
180 	if (r)
181 		return r;
182 
183 	jpeg_v1_0_sw_fini(handle);
184 
185 	r = amdgpu_vcn_sw_fini(adev);
186 
187 	return r;
188 }
189 
190 /**
191  * vcn_v1_0_hw_init - start and test VCN block
192  *
193  * @handle: amdgpu_device pointer
194  *
195  * Initialize the hardware, boot up the VCPU and do some testing
196  */
197 static int vcn_v1_0_hw_init(void *handle)
198 {
199 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
200 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
201 	int i, r;
202 
203 	r = amdgpu_ring_test_helper(ring);
204 	if (r)
205 		goto done;
206 
207 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
208 		ring = &adev->vcn.inst->ring_enc[i];
209 		r = amdgpu_ring_test_helper(ring);
210 		if (r)
211 			goto done;
212 	}
213 
214 	ring = adev->jpeg.inst->ring_dec;
215 	r = amdgpu_ring_test_helper(ring);
216 	if (r)
217 		goto done;
218 
219 done:
220 	if (!r)
221 		DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
222 			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
223 
224 	return r;
225 }
226 
227 /**
228  * vcn_v1_0_hw_fini - stop the hardware block
229  *
230  * @handle: amdgpu_device pointer
231  *
232  * Stop the VCN block, mark ring as not ready any more
233  */
234 static int vcn_v1_0_hw_fini(void *handle)
235 {
236 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
237 
238 	cancel_delayed_work_sync(&adev->vcn.idle_work);
239 
240 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
241 		(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
242 		 RREG32_SOC15(VCN, 0, mmUVD_STATUS))) {
243 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
244 	}
245 
246 	return 0;
247 }
248 
249 /**
250  * vcn_v1_0_suspend - suspend VCN block
251  *
252  * @handle: amdgpu_device pointer
253  *
254  * HW fini and suspend VCN block
255  */
256 static int vcn_v1_0_suspend(void *handle)
257 {
258 	int r;
259 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
260 	bool idle_work_unexecuted;
261 
262 	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.idle_work);
263 	if (idle_work_unexecuted) {
264 		if (adev->pm.dpm_enabled)
265 			amdgpu_dpm_enable_uvd(adev, false);
266 	}
267 
268 	r = vcn_v1_0_hw_fini(adev);
269 	if (r)
270 		return r;
271 
272 	r = amdgpu_vcn_suspend(adev);
273 
274 	return r;
275 }
276 
277 /**
278  * vcn_v1_0_resume - resume VCN block
279  *
280  * @handle: amdgpu_device pointer
281  *
282  * Resume firmware and hw init VCN block
283  */
284 static int vcn_v1_0_resume(void *handle)
285 {
286 	int r;
287 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
288 
289 	r = amdgpu_vcn_resume(adev);
290 	if (r)
291 		return r;
292 
293 	r = vcn_v1_0_hw_init(adev);
294 
295 	return r;
296 }
297 
298 /**
299  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
300  *
301  * @adev: amdgpu_device pointer
302  *
303  * Let the VCN memory controller know it's offsets
304  */
305 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
306 {
307 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
308 	uint32_t offset;
309 
310 	/* cache window 0: fw */
311 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
312 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
313 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
314 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
315 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
316 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
317 		offset = 0;
318 	} else {
319 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
320 			lower_32_bits(adev->vcn.inst->gpu_addr));
321 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
322 			upper_32_bits(adev->vcn.inst->gpu_addr));
323 		offset = size;
324 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
325 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
326 	}
327 
328 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
329 
330 	/* cache window 1: stack */
331 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
332 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
333 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
334 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
335 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
336 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
337 
338 	/* cache window 2: context */
339 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
340 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
341 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
342 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
343 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
344 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
345 
346 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
347 			adev->gfx.config.gb_addr_config);
348 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
349 			adev->gfx.config.gb_addr_config);
350 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
351 			adev->gfx.config.gb_addr_config);
352 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
353 			adev->gfx.config.gb_addr_config);
354 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
355 			adev->gfx.config.gb_addr_config);
356 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
357 			adev->gfx.config.gb_addr_config);
358 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
359 			adev->gfx.config.gb_addr_config);
360 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
361 			adev->gfx.config.gb_addr_config);
362 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
363 			adev->gfx.config.gb_addr_config);
364 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
365 			adev->gfx.config.gb_addr_config);
366 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
367 			adev->gfx.config.gb_addr_config);
368 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
369 			adev->gfx.config.gb_addr_config);
370 }
371 
372 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
373 {
374 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
375 	uint32_t offset;
376 
377 	/* cache window 0: fw */
378 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
379 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
380 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
381 			     0xFFFFFFFF, 0);
382 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
383 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
384 			     0xFFFFFFFF, 0);
385 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
386 			     0xFFFFFFFF, 0);
387 		offset = 0;
388 	} else {
389 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
390 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
391 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
392 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
393 		offset = size;
394 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
395 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
396 	}
397 
398 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
399 
400 	/* cache window 1: stack */
401 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
402 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
403 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
404 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
405 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
406 			     0xFFFFFFFF, 0);
407 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
408 			     0xFFFFFFFF, 0);
409 
410 	/* cache window 2: context */
411 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
412 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
413 			     0xFFFFFFFF, 0);
414 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
415 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
416 			     0xFFFFFFFF, 0);
417 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
418 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
419 			     0xFFFFFFFF, 0);
420 
421 	/* VCN global tiling registers */
422 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
423 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
424 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
425 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
426 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
427 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
428 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
429 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
430 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
431 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
432 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
433 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
434 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
435 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
436 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
437 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
438 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
439 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
440 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
441 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
442 }
443 
444 /**
445  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
446  *
447  * @adev: amdgpu_device pointer
448  *
449  * Disable clock gating for VCN block
450  */
451 static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
452 {
453 	uint32_t data;
454 
455 	/* JPEG disable CGC */
456 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
457 
458 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
459 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
460 	else
461 		data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
462 
463 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
464 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
465 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
466 
467 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
468 	data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
469 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
470 
471 	/* UVD disable CGC */
472 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
473 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
474 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
475 	else
476 		data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
477 
478 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
479 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
480 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
481 
482 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
483 	data &= ~(UVD_CGC_GATE__SYS_MASK
484 		| UVD_CGC_GATE__UDEC_MASK
485 		| UVD_CGC_GATE__MPEG2_MASK
486 		| UVD_CGC_GATE__REGS_MASK
487 		| UVD_CGC_GATE__RBC_MASK
488 		| UVD_CGC_GATE__LMI_MC_MASK
489 		| UVD_CGC_GATE__LMI_UMC_MASK
490 		| UVD_CGC_GATE__IDCT_MASK
491 		| UVD_CGC_GATE__MPRD_MASK
492 		| UVD_CGC_GATE__MPC_MASK
493 		| UVD_CGC_GATE__LBSI_MASK
494 		| UVD_CGC_GATE__LRBBM_MASK
495 		| UVD_CGC_GATE__UDEC_RE_MASK
496 		| UVD_CGC_GATE__UDEC_CM_MASK
497 		| UVD_CGC_GATE__UDEC_IT_MASK
498 		| UVD_CGC_GATE__UDEC_DB_MASK
499 		| UVD_CGC_GATE__UDEC_MP_MASK
500 		| UVD_CGC_GATE__WCB_MASK
501 		| UVD_CGC_GATE__VCPU_MASK
502 		| UVD_CGC_GATE__SCPU_MASK);
503 	WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);
504 
505 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
506 	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
507 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
508 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
509 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
510 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
511 		| UVD_CGC_CTRL__SYS_MODE_MASK
512 		| UVD_CGC_CTRL__UDEC_MODE_MASK
513 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
514 		| UVD_CGC_CTRL__REGS_MODE_MASK
515 		| UVD_CGC_CTRL__RBC_MODE_MASK
516 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
517 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
518 		| UVD_CGC_CTRL__IDCT_MODE_MASK
519 		| UVD_CGC_CTRL__MPRD_MODE_MASK
520 		| UVD_CGC_CTRL__MPC_MODE_MASK
521 		| UVD_CGC_CTRL__LBSI_MODE_MASK
522 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
523 		| UVD_CGC_CTRL__WCB_MODE_MASK
524 		| UVD_CGC_CTRL__VCPU_MODE_MASK
525 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
526 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
527 
528 	/* turn on */
529 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
530 	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
531 		| UVD_SUVD_CGC_GATE__SIT_MASK
532 		| UVD_SUVD_CGC_GATE__SMP_MASK
533 		| UVD_SUVD_CGC_GATE__SCM_MASK
534 		| UVD_SUVD_CGC_GATE__SDB_MASK
535 		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
536 		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
537 		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
538 		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
539 		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
540 		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
541 		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
542 		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
543 		| UVD_SUVD_CGC_GATE__SCLR_MASK
544 		| UVD_SUVD_CGC_GATE__UVD_SC_MASK
545 		| UVD_SUVD_CGC_GATE__ENT_MASK
546 		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
547 		| UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
548 		| UVD_SUVD_CGC_GATE__SITE_MASK
549 		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
550 		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
551 		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
552 		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
553 		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
554 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);
555 
556 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
557 	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
558 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
559 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
560 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
561 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
562 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
563 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
564 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
565 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
566 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
567 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
568 }
569 
570 /**
571  * vcn_v1_0_enable_clock_gating - enable VCN clock gating
572  *
573  * @adev: amdgpu_device pointer
574  *
575  * Enable clock gating for VCN block
576  */
577 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
578 {
579 	uint32_t data = 0;
580 
581 	/* enable JPEG CGC */
582 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
583 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
584 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
585 	else
586 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
587 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
588 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
589 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
590 
591 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
592 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
593 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
594 
595 	/* enable UVD CGC */
596 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
597 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
598 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
599 	else
600 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
601 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
602 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
603 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
604 
605 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
606 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
607 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
608 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
609 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
610 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
611 		| UVD_CGC_CTRL__SYS_MODE_MASK
612 		| UVD_CGC_CTRL__UDEC_MODE_MASK
613 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
614 		| UVD_CGC_CTRL__REGS_MODE_MASK
615 		| UVD_CGC_CTRL__RBC_MODE_MASK
616 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
617 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
618 		| UVD_CGC_CTRL__IDCT_MODE_MASK
619 		| UVD_CGC_CTRL__MPRD_MODE_MASK
620 		| UVD_CGC_CTRL__MPC_MODE_MASK
621 		| UVD_CGC_CTRL__LBSI_MODE_MASK
622 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
623 		| UVD_CGC_CTRL__WCB_MODE_MASK
624 		| UVD_CGC_CTRL__VCPU_MODE_MASK
625 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
626 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
627 
628 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
629 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
630 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
631 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
632 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
633 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
634 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
635 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
636 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
637 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
638 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
639 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
640 }
641 
642 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
643 {
644 	uint32_t reg_data = 0;
645 
646 	/* disable JPEG CGC */
647 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
648 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
649 	else
650 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
651 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
652 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
653 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
654 
655 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
656 
657 	/* enable sw clock gating control */
658 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
659 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
660 	else
661 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
662 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
663 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
664 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
665 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
666 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
667 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
668 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
669 		 UVD_CGC_CTRL__SYS_MODE_MASK |
670 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
671 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
672 		 UVD_CGC_CTRL__REGS_MODE_MASK |
673 		 UVD_CGC_CTRL__RBC_MODE_MASK |
674 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
675 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
676 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
677 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
678 		 UVD_CGC_CTRL__MPC_MODE_MASK |
679 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
680 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
681 		 UVD_CGC_CTRL__WCB_MODE_MASK |
682 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
683 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
684 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
685 
686 	/* turn off clock gating */
687 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
688 
689 	/* turn on SUVD clock gating */
690 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
691 
692 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
693 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
694 }
695 
696 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
697 {
698 	uint32_t data = 0;
699 
700 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
701 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
702 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
703 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
704 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
705 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
706 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
707 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
708 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
709 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
710 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
711 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
712 
713 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
714 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF);
715 	} else {
716 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
717 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
718 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
719 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
720 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
721 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
722 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
723 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
724 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
725 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
726 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
727 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
728 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF);
729 	}
730 
731 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
732 
733 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
734 	data &= ~0x103;
735 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
736 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
737 
738 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
739 }
740 
741 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
742 {
743 	uint32_t data = 0;
744 
745 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
746 		/* Before power off, this indicator has to be turned on */
747 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
748 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
749 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
750 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
751 
752 
753 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
754 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
755 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
756 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
757 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
758 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
759 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
760 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
761 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
762 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
763 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
764 
765 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
766 
767 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
768 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
769 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
770 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
771 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
772 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
773 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
774 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
775 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
776 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
777 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
778 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF);
779 	}
780 }
781 
782 /**
783  * vcn_v1_0_start_spg_mode - start VCN block
784  *
785  * @adev: amdgpu_device pointer
786  *
787  * Setup and start the VCN block
788  */
789 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
790 {
791 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
792 	uint32_t rb_bufsz, tmp;
793 	uint32_t lmi_swap_cntl;
794 	int i, j, r;
795 
796 	/* disable byte swapping */
797 	lmi_swap_cntl = 0;
798 
799 	vcn_1_0_disable_static_power_gating(adev);
800 
801 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
802 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
803 
804 	/* disable clock gating */
805 	vcn_v1_0_disable_clock_gating(adev);
806 
807 	/* disable interupt */
808 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
809 			~UVD_MASTINT_EN__VCPU_EN_MASK);
810 
811 	/* initialize VCN memory controller */
812 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
813 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
814 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
815 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
816 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
817 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
818 
819 #ifdef __BIG_ENDIAN
820 	/* swap (8 in 32) RB and IB */
821 	lmi_swap_cntl = 0xa;
822 #endif
823 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
824 
825 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
826 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
827 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
828 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
829 
830 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
831 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
832 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
833 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
834 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
835 
836 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
837 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
838 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
839 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
840 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
841 
842 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
843 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
844 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
845 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
846 
847 	vcn_v1_0_mc_resume_spg_mode(adev);
848 
849 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
850 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
851 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
852 
853 	/* enable VCPU clock */
854 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
855 
856 	/* boot up the VCPU */
857 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
858 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
859 
860 	/* enable UMC */
861 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
862 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
863 
864 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
865 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
866 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
867 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
868 
869 	for (i = 0; i < 10; ++i) {
870 		uint32_t status;
871 
872 		for (j = 0; j < 100; ++j) {
873 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
874 			if (status & UVD_STATUS__IDLE)
875 				break;
876 			mdelay(10);
877 		}
878 		r = 0;
879 		if (status & UVD_STATUS__IDLE)
880 			break;
881 
882 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
883 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
884 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
885 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
886 		mdelay(10);
887 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
888 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
889 		mdelay(10);
890 		r = -1;
891 	}
892 
893 	if (r) {
894 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
895 		return r;
896 	}
897 	/* enable master interrupt */
898 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
899 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
900 
901 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
902 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
903 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
904 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
905 
906 	/* clear the busy bit of UVD_STATUS */
907 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
908 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
909 
910 	/* force RBC into idle state */
911 	rb_bufsz = order_base_2(ring->ring_size);
912 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
913 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
914 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
915 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
916 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
917 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
918 
919 	/* set the write pointer delay */
920 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
921 
922 	/* set the wb address */
923 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
924 			(upper_32_bits(ring->gpu_addr) >> 2));
925 
926 	/* program the RB_BASE for ring buffer */
927 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
928 			lower_32_bits(ring->gpu_addr));
929 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
930 			upper_32_bits(ring->gpu_addr));
931 
932 	/* Initialize the ring buffer's read and write pointers */
933 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
934 
935 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
936 
937 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
938 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
939 			lower_32_bits(ring->wptr));
940 
941 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
942 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
943 
944 	ring = &adev->vcn.inst->ring_enc[0];
945 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
946 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
947 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
948 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
949 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
950 
951 	ring = &adev->vcn.inst->ring_enc[1];
952 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
953 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
954 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
955 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
956 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
957 
958 	jpeg_v1_0_start(adev, 0);
959 
960 	return 0;
961 }
962 
963 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
964 {
965 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
966 	uint32_t rb_bufsz, tmp;
967 	uint32_t lmi_swap_cntl;
968 
969 	/* disable byte swapping */
970 	lmi_swap_cntl = 0;
971 
972 	vcn_1_0_enable_static_power_gating(adev);
973 
974 	/* enable dynamic power gating mode */
975 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
976 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
977 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
978 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
979 
980 	/* enable clock gating */
981 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
982 
983 	/* enable VCPU clock */
984 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
985 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
986 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
987 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
988 
989 	/* disable interupt */
990 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
991 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
992 
993 	/* initialize VCN memory controller */
994 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
995 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
996 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
997 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
998 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
999 		UVD_LMI_CTRL__REQ_MODE_MASK |
1000 		UVD_LMI_CTRL__CRC_RESET_MASK |
1001 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1002 		0x00100000L, 0xFFFFFFFF, 0);
1003 
1004 #ifdef __BIG_ENDIAN
1005 	/* swap (8 in 32) RB and IB */
1006 	lmi_swap_cntl = 0xa;
1007 #endif
1008 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
1009 
1010 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_CNTL,
1011 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
1012 
1013 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXA0,
1014 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
1015 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
1016 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
1017 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1018 
1019 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXB0,
1020 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1021 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1022 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1023 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1024 
1025 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUX,
1026 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1027 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1028 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1029 
1030 	vcn_v1_0_mc_resume_dpg_mode(adev);
1031 
1032 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1033 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1034 
1035 	/* boot up the VCPU */
1036 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1037 
1038 	/* enable UMC */
1039 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL2,
1040 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1041 		0xFFFFFFFF, 0);
1042 
1043 	/* enable master interrupt */
1044 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
1045 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1046 
1047 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1048 	/* setup mmUVD_LMI_CTRL */
1049 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
1050 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1051 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1052 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1053 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1054 		UVD_LMI_CTRL__REQ_MODE_MASK |
1055 		UVD_LMI_CTRL__CRC_RESET_MASK |
1056 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1057 		0x00100000L, 0xFFFFFFFF, 1);
1058 
1059 	tmp = adev->gfx.config.gb_addr_config;
1060 	/* setup VCN global tiling registers */
1061 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1062 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1063 
1064 	/* enable System Interrupt for JRBC */
1065 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SYS_INT_EN,
1066 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1067 
1068 	/* force RBC into idle state */
1069 	rb_bufsz = order_base_2(ring->ring_size);
1070 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1071 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1072 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1073 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1074 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1075 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1076 
1077 	/* set the write pointer delay */
1078 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1079 
1080 	/* set the wb address */
1081 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1082 								(upper_32_bits(ring->gpu_addr) >> 2));
1083 
1084 	/* program the RB_BASE for ring buffer */
1085 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1086 								lower_32_bits(ring->gpu_addr));
1087 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1088 								upper_32_bits(ring->gpu_addr));
1089 
1090 	/* Initialize the ring buffer's read and write pointers */
1091 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1092 
1093 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1094 
1095 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1096 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1097 								lower_32_bits(ring->wptr));
1098 
1099 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1100 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1101 
1102 	jpeg_v1_0_start(adev, 1);
1103 
1104 	return 0;
1105 }
1106 
1107 static int vcn_v1_0_start(struct amdgpu_device *adev)
1108 {
1109 	return (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ?
1110 		vcn_v1_0_start_dpg_mode(adev) : vcn_v1_0_start_spg_mode(adev);
1111 }
1112 
1113 /**
1114  * vcn_v1_0_stop_spg_mode - stop VCN block
1115  *
1116  * @adev: amdgpu_device pointer
1117  *
1118  * stop the VCN block
1119  */
1120 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1121 {
1122 	int tmp;
1123 
1124 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7);
1125 
1126 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1127 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1128 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1129 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1130 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1131 
1132 	/* stall UMC channel */
1133 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
1134 		UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
1135 		~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
1136 
1137 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1138 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1139 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1140 
1141 	/* disable VCPU clock */
1142 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1143 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1144 
1145 	/* reset LMI UMC/LMI */
1146 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1147 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1148 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1149 
1150 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1151 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1152 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1153 
1154 	/* put VCPU into reset */
1155 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1156 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1157 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1158 
1159 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1160 
1161 	vcn_v1_0_enable_clock_gating(adev);
1162 	vcn_1_0_enable_static_power_gating(adev);
1163 	return 0;
1164 }
1165 
1166 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1167 {
1168 	uint32_t tmp;
1169 
1170 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1171 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1172 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1173 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1174 
1175 	/* wait for read ptr to be equal to write ptr */
1176 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1177 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF);
1178 
1179 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1180 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
1181 
1182 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1183 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF);
1184 
1185 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1186 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF);
1187 
1188 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1189 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1190 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1191 
1192 	/* disable dynamic power gating mode */
1193 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1194 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1195 
1196 	return 0;
1197 }
1198 
1199 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1200 {
1201 	int r;
1202 
1203 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1204 		r = vcn_v1_0_stop_dpg_mode(adev);
1205 	else
1206 		r = vcn_v1_0_stop_spg_mode(adev);
1207 
1208 	return r;
1209 }
1210 
1211 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1212 				int inst_idx, struct dpg_pause_state *new_state)
1213 {
1214 	int ret_code;
1215 	uint32_t reg_data = 0;
1216 	uint32_t reg_data2 = 0;
1217 	struct amdgpu_ring *ring;
1218 
1219 	/* pause/unpause if state is changed */
1220 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1221 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1222 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1223 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1224 			new_state->fw_based, new_state->jpeg);
1225 
1226 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1227 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1228 
1229 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1230 			ret_code = 0;
1231 
1232 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1233 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1234 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1235 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1236 
1237 			if (!ret_code) {
1238 				/* pause DPG non-jpeg */
1239 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1240 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1241 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1242 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1243 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1244 
1245 				/* Restore */
1246 				ring = &adev->vcn.inst->ring_enc[0];
1247 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1248 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1249 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1250 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1251 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1252 
1253 				ring = &adev->vcn.inst->ring_enc[1];
1254 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1255 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1256 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1257 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1258 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1259 
1260 				ring = &adev->vcn.inst->ring_dec;
1261 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1262 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1263 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1264 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1265 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1266 			}
1267 		} else {
1268 			/* unpause dpg non-jpeg, no need to wait */
1269 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1270 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1271 		}
1272 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1273 	}
1274 
1275 	/* pause/unpause if state is changed */
1276 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1277 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1278 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1279 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1280 			new_state->fw_based, new_state->jpeg);
1281 
1282 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1283 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1284 
1285 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1286 			ret_code = 0;
1287 
1288 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1289 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1290 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1291 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1292 
1293 			if (!ret_code) {
1294 				/* Make sure JPRG Snoop is disabled before sending the pause */
1295 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1296 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1297 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1298 
1299 				/* pause DPG jpeg */
1300 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1301 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1302 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1303 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1304 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1305 
1306 				/* Restore */
1307 				ring = adev->jpeg.inst->ring_dec;
1308 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1309 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1310 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1311 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1312 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1313 							lower_32_bits(ring->gpu_addr));
1314 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1315 							upper_32_bits(ring->gpu_addr));
1316 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1317 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1318 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1319 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1320 
1321 				ring = &adev->vcn.inst->ring_dec;
1322 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1323 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1324 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1325 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1326 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1327 			}
1328 		} else {
1329 			/* unpause dpg jpeg, no need to wait */
1330 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1331 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1332 		}
1333 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1334 	}
1335 
1336 	return 0;
1337 }
1338 
1339 static bool vcn_v1_0_is_idle(void *handle)
1340 {
1341 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1342 
1343 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1344 }
1345 
1346 static int vcn_v1_0_wait_for_idle(void *handle)
1347 {
1348 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1349 	int ret;
1350 
1351 	ret = SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1352 		UVD_STATUS__IDLE);
1353 
1354 	return ret;
1355 }
1356 
1357 static int vcn_v1_0_set_clockgating_state(void *handle,
1358 					  enum amd_clockgating_state state)
1359 {
1360 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1361 	bool enable = (state == AMD_CG_STATE_GATE);
1362 
1363 	if (enable) {
1364 		/* wait for STATUS to clear */
1365 		if (!vcn_v1_0_is_idle(handle))
1366 			return -EBUSY;
1367 		vcn_v1_0_enable_clock_gating(adev);
1368 	} else {
1369 		/* disable HW gating and enable Sw gating */
1370 		vcn_v1_0_disable_clock_gating(adev);
1371 	}
1372 	return 0;
1373 }
1374 
1375 /**
1376  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1377  *
1378  * @ring: amdgpu_ring pointer
1379  *
1380  * Returns the current hardware read pointer
1381  */
1382 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1383 {
1384 	struct amdgpu_device *adev = ring->adev;
1385 
1386 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1387 }
1388 
1389 /**
1390  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1391  *
1392  * @ring: amdgpu_ring pointer
1393  *
1394  * Returns the current hardware write pointer
1395  */
1396 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1397 {
1398 	struct amdgpu_device *adev = ring->adev;
1399 
1400 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1401 }
1402 
1403 /**
1404  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1405  *
1406  * @ring: amdgpu_ring pointer
1407  *
1408  * Commits the write pointer to the hardware
1409  */
1410 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1411 {
1412 	struct amdgpu_device *adev = ring->adev;
1413 
1414 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1415 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1416 			lower_32_bits(ring->wptr) | 0x80000000);
1417 
1418 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1419 }
1420 
1421 /**
1422  * vcn_v1_0_dec_ring_insert_start - insert a start command
1423  *
1424  * @ring: amdgpu_ring pointer
1425  *
1426  * Write a start command to the ring.
1427  */
1428 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1429 {
1430 	struct amdgpu_device *adev = ring->adev;
1431 
1432 	amdgpu_ring_write(ring,
1433 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1434 	amdgpu_ring_write(ring, 0);
1435 	amdgpu_ring_write(ring,
1436 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1437 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1438 }
1439 
1440 /**
1441  * vcn_v1_0_dec_ring_insert_end - insert a end command
1442  *
1443  * @ring: amdgpu_ring pointer
1444  *
1445  * Write a end command to the ring.
1446  */
1447 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1448 {
1449 	struct amdgpu_device *adev = ring->adev;
1450 
1451 	amdgpu_ring_write(ring,
1452 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1453 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1454 }
1455 
1456 /**
1457  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1458  *
1459  * @ring: amdgpu_ring pointer
1460  * @addr: address
1461  * @seq: sequence number
1462  * @flags: fence related flags
1463  *
1464  * Write a fence and a trap command to the ring.
1465  */
1466 static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
1467 				     unsigned flags)
1468 {
1469 	struct amdgpu_device *adev = ring->adev;
1470 
1471 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1472 
1473 	amdgpu_ring_write(ring,
1474 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
1475 	amdgpu_ring_write(ring, seq);
1476 	amdgpu_ring_write(ring,
1477 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1478 	amdgpu_ring_write(ring, addr & 0xffffffff);
1479 	amdgpu_ring_write(ring,
1480 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1481 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
1482 	amdgpu_ring_write(ring,
1483 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1484 	amdgpu_ring_write(ring, VCN_DEC_CMD_FENCE << 1);
1485 
1486 	amdgpu_ring_write(ring,
1487 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1488 	amdgpu_ring_write(ring, 0);
1489 	amdgpu_ring_write(ring,
1490 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1491 	amdgpu_ring_write(ring, 0);
1492 	amdgpu_ring_write(ring,
1493 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1494 	amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
1495 }
1496 
1497 /**
1498  * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
1499  *
1500  * @ring: amdgpu_ring pointer
1501  * @job: job to retrieve vmid from
1502  * @ib: indirect buffer to execute
1503  * @flags: unused
1504  *
1505  * Write ring commands to execute the indirect buffer
1506  */
1507 static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
1508 					struct amdgpu_job *job,
1509 					struct amdgpu_ib *ib,
1510 					uint32_t flags)
1511 {
1512 	struct amdgpu_device *adev = ring->adev;
1513 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1514 
1515 	amdgpu_ring_write(ring,
1516 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
1517 	amdgpu_ring_write(ring, vmid);
1518 
1519 	amdgpu_ring_write(ring,
1520 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
1521 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1522 	amdgpu_ring_write(ring,
1523 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
1524 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1525 	amdgpu_ring_write(ring,
1526 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
1527 	amdgpu_ring_write(ring, ib->length_dw);
1528 }
1529 
1530 static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
1531 					    uint32_t reg, uint32_t val,
1532 					    uint32_t mask)
1533 {
1534 	struct amdgpu_device *adev = ring->adev;
1535 
1536 	amdgpu_ring_write(ring,
1537 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1538 	amdgpu_ring_write(ring, reg << 2);
1539 	amdgpu_ring_write(ring,
1540 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1541 	amdgpu_ring_write(ring, val);
1542 	amdgpu_ring_write(ring,
1543 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
1544 	amdgpu_ring_write(ring, mask);
1545 	amdgpu_ring_write(ring,
1546 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1547 	amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
1548 }
1549 
1550 static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
1551 					    unsigned vmid, uint64_t pd_addr)
1552 {
1553 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
1554 	uint32_t data0, data1, mask;
1555 
1556 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1557 
1558 	/* wait for register write */
1559 	data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
1560 	data1 = lower_32_bits(pd_addr);
1561 	mask = 0xffffffff;
1562 	vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
1563 }
1564 
1565 static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
1566 					uint32_t reg, uint32_t val)
1567 {
1568 	struct amdgpu_device *adev = ring->adev;
1569 
1570 	amdgpu_ring_write(ring,
1571 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1572 	amdgpu_ring_write(ring, reg << 2);
1573 	amdgpu_ring_write(ring,
1574 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1575 	amdgpu_ring_write(ring, val);
1576 	amdgpu_ring_write(ring,
1577 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1578 	amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
1579 }
1580 
1581 /**
1582  * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
1583  *
1584  * @ring: amdgpu_ring pointer
1585  *
1586  * Returns the current hardware enc read pointer
1587  */
1588 static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
1589 {
1590 	struct amdgpu_device *adev = ring->adev;
1591 
1592 	if (ring == &adev->vcn.inst->ring_enc[0])
1593 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
1594 	else
1595 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
1596 }
1597 
1598  /**
1599  * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
1600  *
1601  * @ring: amdgpu_ring pointer
1602  *
1603  * Returns the current hardware enc write pointer
1604  */
1605 static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
1606 {
1607 	struct amdgpu_device *adev = ring->adev;
1608 
1609 	if (ring == &adev->vcn.inst->ring_enc[0])
1610 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1611 	else
1612 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1613 }
1614 
1615  /**
1616  * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
1617  *
1618  * @ring: amdgpu_ring pointer
1619  *
1620  * Commits the enc write pointer to the hardware
1621  */
1622 static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
1623 {
1624 	struct amdgpu_device *adev = ring->adev;
1625 
1626 	if (ring == &adev->vcn.inst->ring_enc[0])
1627 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
1628 			lower_32_bits(ring->wptr));
1629 	else
1630 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
1631 			lower_32_bits(ring->wptr));
1632 }
1633 
1634 /**
1635  * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
1636  *
1637  * @ring: amdgpu_ring pointer
1638  * @addr: address
1639  * @seq: sequence number
1640  * @flags: fence related flags
1641  *
1642  * Write enc a fence and a trap command to the ring.
1643  */
1644 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1645 			u64 seq, unsigned flags)
1646 {
1647 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1648 
1649 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1650 	amdgpu_ring_write(ring, addr);
1651 	amdgpu_ring_write(ring, upper_32_bits(addr));
1652 	amdgpu_ring_write(ring, seq);
1653 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1654 }
1655 
1656 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1657 {
1658 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1659 }
1660 
1661 /**
1662  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1663  *
1664  * @ring: amdgpu_ring pointer
1665  * @job: job to retrive vmid from
1666  * @ib: indirect buffer to execute
1667  * @flags: unused
1668  *
1669  * Write enc ring commands to execute the indirect buffer
1670  */
1671 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1672 					struct amdgpu_job *job,
1673 					struct amdgpu_ib *ib,
1674 					uint32_t flags)
1675 {
1676 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1677 
1678 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1679 	amdgpu_ring_write(ring, vmid);
1680 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1681 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1682 	amdgpu_ring_write(ring, ib->length_dw);
1683 }
1684 
1685 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1686 					    uint32_t reg, uint32_t val,
1687 					    uint32_t mask)
1688 {
1689 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1690 	amdgpu_ring_write(ring, reg << 2);
1691 	amdgpu_ring_write(ring, mask);
1692 	amdgpu_ring_write(ring, val);
1693 }
1694 
1695 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1696 					    unsigned int vmid, uint64_t pd_addr)
1697 {
1698 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
1699 
1700 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1701 
1702 	/* wait for reg writes */
1703 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
1704 					vmid * hub->ctx_addr_distance,
1705 					lower_32_bits(pd_addr), 0xffffffff);
1706 }
1707 
1708 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1709 					uint32_t reg, uint32_t val)
1710 {
1711 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1712 	amdgpu_ring_write(ring,	reg << 2);
1713 	amdgpu_ring_write(ring, val);
1714 }
1715 
1716 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1717 					struct amdgpu_irq_src *source,
1718 					unsigned type,
1719 					enum amdgpu_interrupt_state state)
1720 {
1721 	return 0;
1722 }
1723 
1724 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1725 				      struct amdgpu_irq_src *source,
1726 				      struct amdgpu_iv_entry *entry)
1727 {
1728 	DRM_DEBUG("IH: VCN TRAP\n");
1729 
1730 	switch (entry->src_id) {
1731 	case 124:
1732 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1733 		break;
1734 	case 119:
1735 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1736 		break;
1737 	case 120:
1738 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1739 		break;
1740 	default:
1741 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1742 			  entry->src_id, entry->src_data[0]);
1743 		break;
1744 	}
1745 
1746 	return 0;
1747 }
1748 
1749 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1750 {
1751 	struct amdgpu_device *adev = ring->adev;
1752 	int i;
1753 
1754 	WARN_ON(ring->wptr % 2 || count % 2);
1755 
1756 	for (i = 0; i < count / 2; i++) {
1757 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1758 		amdgpu_ring_write(ring, 0);
1759 	}
1760 }
1761 
1762 static int vcn_v1_0_set_powergating_state(void *handle,
1763 					  enum amd_powergating_state state)
1764 {
1765 	/* This doesn't actually powergate the VCN block.
1766 	 * That's done in the dpm code via the SMC.  This
1767 	 * just re-inits the block as necessary.  The actual
1768 	 * gating still happens in the dpm code.  We should
1769 	 * revisit this when there is a cleaner line between
1770 	 * the smc and the hw blocks
1771 	 */
1772 	int ret;
1773 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1774 
1775 	if(state == adev->vcn.cur_state)
1776 		return 0;
1777 
1778 	if (state == AMD_PG_STATE_GATE)
1779 		ret = vcn_v1_0_stop(adev);
1780 	else
1781 		ret = vcn_v1_0_start(adev);
1782 
1783 	if(!ret)
1784 		adev->vcn.cur_state = state;
1785 	return ret;
1786 }
1787 
1788 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1789 {
1790 	struct amdgpu_device *adev =
1791 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1792 	unsigned int fences = 0, i;
1793 
1794 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1795 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1796 
1797 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1798 		struct dpg_pause_state new_state;
1799 
1800 		if (fences)
1801 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1802 		else
1803 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1804 
1805 		if (amdgpu_fence_count_emitted(adev->jpeg.inst->ring_dec))
1806 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1807 		else
1808 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1809 
1810 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1811 	}
1812 
1813 	fences += amdgpu_fence_count_emitted(adev->jpeg.inst->ring_dec);
1814 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1815 
1816 	if (fences == 0) {
1817 		amdgpu_gfx_off_ctrl(adev, true);
1818 		if (adev->pm.dpm_enabled)
1819 			amdgpu_dpm_enable_uvd(adev, false);
1820 		else
1821 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1822 			       AMD_PG_STATE_GATE);
1823 	} else {
1824 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1825 	}
1826 }
1827 
1828 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1829 {
1830 	struct	amdgpu_device *adev = ring->adev;
1831 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1832 
1833 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
1834 
1835 	if (amdgpu_fence_wait_empty(ring->adev->jpeg.inst->ring_dec))
1836 		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
1837 
1838 	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
1839 
1840 }
1841 
1842 void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
1843 {
1844 	struct amdgpu_device *adev = ring->adev;
1845 
1846 	if (set_clocks) {
1847 		amdgpu_gfx_off_ctrl(adev, false);
1848 		if (adev->pm.dpm_enabled)
1849 			amdgpu_dpm_enable_uvd(adev, true);
1850 		else
1851 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1852 			       AMD_PG_STATE_UNGATE);
1853 	}
1854 
1855 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1856 		struct dpg_pause_state new_state;
1857 		unsigned int fences = 0, i;
1858 
1859 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1860 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1861 
1862 		if (fences)
1863 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1864 		else
1865 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1866 
1867 		if (amdgpu_fence_count_emitted(adev->jpeg.inst->ring_dec))
1868 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1869 		else
1870 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1871 
1872 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1873 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1874 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1875 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1876 
1877 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1878 	}
1879 }
1880 
1881 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
1882 {
1883 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1884 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
1885 }
1886 
1887 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1888 	.name = "vcn_v1_0",
1889 	.early_init = vcn_v1_0_early_init,
1890 	.late_init = NULL,
1891 	.sw_init = vcn_v1_0_sw_init,
1892 	.sw_fini = vcn_v1_0_sw_fini,
1893 	.hw_init = vcn_v1_0_hw_init,
1894 	.hw_fini = vcn_v1_0_hw_fini,
1895 	.suspend = vcn_v1_0_suspend,
1896 	.resume = vcn_v1_0_resume,
1897 	.is_idle = vcn_v1_0_is_idle,
1898 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1899 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1900 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1901 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1902 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1903 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1904 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1905 };
1906 
1907 /*
1908  * It is a hardware issue that VCN can't handle a GTT TMZ buffer on
1909  * CHIP_RAVEN series ASIC. Move such a GTT TMZ buffer to VRAM domain
1910  * before command submission as a workaround.
1911  */
1912 static int vcn_v1_0_validate_bo(struct amdgpu_cs_parser *parser,
1913 				struct amdgpu_job *job,
1914 				uint64_t addr)
1915 {
1916 	struct ttm_operation_ctx ctx = { false, false };
1917 	struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
1918 	struct amdgpu_vm *vm = &fpriv->vm;
1919 	struct amdgpu_bo_va_mapping *mapping;
1920 	struct amdgpu_bo *bo;
1921 	int r;
1922 
1923 	addr &= AMDGPU_GMC_HOLE_MASK;
1924 	if (addr & 0x7) {
1925 		DRM_ERROR("VCN messages must be 8 byte aligned!\n");
1926 		return -EINVAL;
1927 	}
1928 
1929 	mapping = amdgpu_vm_bo_lookup_mapping(vm, addr/AMDGPU_GPU_PAGE_SIZE);
1930 	if (!mapping || !mapping->bo_va || !mapping->bo_va->base.bo)
1931 		return -EINVAL;
1932 
1933 	bo = mapping->bo_va->base.bo;
1934 	if (!(bo->flags & AMDGPU_GEM_CREATE_ENCRYPTED))
1935 		return 0;
1936 
1937 	amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
1938 	r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
1939 	if (r) {
1940 		DRM_ERROR("Failed to validate the VCN message BO (%d)!\n", r);
1941 		return r;
1942 	}
1943 
1944 	return r;
1945 }
1946 
1947 static int vcn_v1_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
1948 					   struct amdgpu_job *job,
1949 					   struct amdgpu_ib *ib)
1950 {
1951 	uint32_t msg_lo = 0, msg_hi = 0;
1952 	int i, r;
1953 
1954 	if (!(ib->flags & AMDGPU_IB_FLAGS_SECURE))
1955 		return 0;
1956 
1957 	for (i = 0; i < ib->length_dw; i += 2) {
1958 		uint32_t reg = amdgpu_ib_get_value(ib, i);
1959 		uint32_t val = amdgpu_ib_get_value(ib, i + 1);
1960 
1961 		if (reg == PACKET0(p->adev->vcn.internal.data0, 0)) {
1962 			msg_lo = val;
1963 		} else if (reg == PACKET0(p->adev->vcn.internal.data1, 0)) {
1964 			msg_hi = val;
1965 		} else if (reg == PACKET0(p->adev->vcn.internal.cmd, 0)) {
1966 			r = vcn_v1_0_validate_bo(p, job,
1967 						 ((u64)msg_hi) << 32 | msg_lo);
1968 			if (r)
1969 				return r;
1970 		}
1971 	}
1972 
1973 	return 0;
1974 }
1975 
1976 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1977 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1978 	.align_mask = 0xf,
1979 	.support_64bit_ptrs = false,
1980 	.no_user_fence = true,
1981 	.secure_submission_supported = true,
1982 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1983 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1984 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1985 	.patch_cs_in_place = vcn_v1_0_ring_patch_cs_in_place,
1986 	.emit_frame_size =
1987 		6 + 6 + /* hdp invalidate / flush */
1988 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1989 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1990 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1991 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1992 		6,
1993 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1994 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1995 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1996 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1997 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1998 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1999 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
2000 	.insert_start = vcn_v1_0_dec_ring_insert_start,
2001 	.insert_end = vcn_v1_0_dec_ring_insert_end,
2002 	.pad_ib = amdgpu_ring_generic_pad_ib,
2003 	.begin_use = vcn_v1_0_ring_begin_use,
2004 	.end_use = vcn_v1_0_ring_end_use,
2005 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
2006 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
2007 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
2008 };
2009 
2010 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
2011 	.type = AMDGPU_RING_TYPE_VCN_ENC,
2012 	.align_mask = 0x3f,
2013 	.nop = VCN_ENC_CMD_NO_OP,
2014 	.support_64bit_ptrs = false,
2015 	.no_user_fence = true,
2016 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
2017 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
2018 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
2019 	.emit_frame_size =
2020 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
2021 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
2022 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
2023 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
2024 		1, /* vcn_v1_0_enc_ring_insert_end */
2025 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
2026 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
2027 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
2028 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
2029 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
2030 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
2031 	.insert_nop = amdgpu_ring_insert_nop,
2032 	.insert_end = vcn_v1_0_enc_ring_insert_end,
2033 	.pad_ib = amdgpu_ring_generic_pad_ib,
2034 	.begin_use = vcn_v1_0_ring_begin_use,
2035 	.end_use = vcn_v1_0_ring_end_use,
2036 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
2037 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
2038 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
2039 };
2040 
2041 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
2042 {
2043 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
2044 	DRM_INFO("VCN decode is enabled in VM mode\n");
2045 }
2046 
2047 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
2048 {
2049 	int i;
2050 
2051 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
2052 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
2053 
2054 	DRM_INFO("VCN encode is enabled in VM mode\n");
2055 }
2056 
2057 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
2058 	.set = vcn_v1_0_set_interrupt_state,
2059 	.process = vcn_v1_0_process_interrupt,
2060 };
2061 
2062 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
2063 {
2064 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
2065 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
2066 }
2067 
2068 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
2069 {
2070 		.type = AMD_IP_BLOCK_TYPE_VCN,
2071 		.major = 1,
2072 		.minor = 0,
2073 		.rev = 0,
2074 		.funcs = &vcn_v1_0_ip_funcs,
2075 };
2076