xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision 6d6a8d6a)
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_vcn.h"
28 #include "amdgpu_pm.h"
29 #include "soc15.h"
30 #include "soc15d.h"
31 #include "soc15_common.h"
32 
33 #include "vcn/vcn_1_0_offset.h"
34 #include "vcn/vcn_1_0_sh_mask.h"
35 #include "mmhub/mmhub_9_1_offset.h"
36 #include "mmhub/mmhub_9_1_sh_mask.h"
37 
38 #include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"
39 #include "jpeg_v1_0.h"
40 #include "vcn_v1_0.h"
41 
42 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0		0x05ab
43 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0_BASE_IDX	1
44 #define mmUVD_REG_XX_MASK_1_0			0x05ac
45 #define mmUVD_REG_XX_MASK_1_0_BASE_IDX		1
46 
47 static int vcn_v1_0_stop(struct amdgpu_device *adev);
48 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
49 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
50 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev);
51 static int vcn_v1_0_set_powergating_state(void *handle, enum amd_powergating_state state);
52 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
53 				int inst_idx, struct dpg_pause_state *new_state);
54 
55 static void vcn_v1_0_idle_work_handler(struct work_struct *work);
56 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring);
57 
58 /**
59  * vcn_v1_0_early_init - set function pointers
60  *
61  * @handle: amdgpu_device pointer
62  *
63  * Set ring and irq function pointers
64  */
65 static int vcn_v1_0_early_init(void *handle)
66 {
67 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
68 
69 	adev->vcn.num_enc_rings = 2;
70 
71 	vcn_v1_0_set_dec_ring_funcs(adev);
72 	vcn_v1_0_set_enc_ring_funcs(adev);
73 	vcn_v1_0_set_irq_funcs(adev);
74 
75 	jpeg_v1_0_early_init(handle);
76 
77 	return 0;
78 }
79 
80 /**
81  * vcn_v1_0_sw_init - sw init for VCN block
82  *
83  * @handle: amdgpu_device pointer
84  *
85  * Load firmware and sw initialization
86  */
87 static int vcn_v1_0_sw_init(void *handle)
88 {
89 	struct amdgpu_ring *ring;
90 	int i, r;
91 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
92 
93 	/* VCN DEC TRAP */
94 	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
95 			VCN_1_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.inst->irq);
96 	if (r)
97 		return r;
98 
99 	/* VCN ENC TRAP */
100 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
101 		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, i + VCN_1_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
102 					&adev->vcn.inst->irq);
103 		if (r)
104 			return r;
105 	}
106 
107 	r = amdgpu_vcn_sw_init(adev);
108 	if (r)
109 		return r;
110 
111 	/* Override the work func */
112 	adev->vcn.idle_work.work.func = vcn_v1_0_idle_work_handler;
113 
114 	amdgpu_vcn_setup_ucode(adev);
115 
116 	r = amdgpu_vcn_resume(adev);
117 	if (r)
118 		return r;
119 
120 	ring = &adev->vcn.inst->ring_dec;
121 	sprintf(ring->name, "vcn_dec");
122 	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
123 			     AMDGPU_RING_PRIO_DEFAULT, NULL);
124 	if (r)
125 		return r;
126 
127 	adev->vcn.internal.scratch9 = adev->vcn.inst->external.scratch9 =
128 		SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
129 	adev->vcn.internal.data0 = adev->vcn.inst->external.data0 =
130 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
131 	adev->vcn.internal.data1 = adev->vcn.inst->external.data1 =
132 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
133 	adev->vcn.internal.cmd = adev->vcn.inst->external.cmd =
134 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
135 	adev->vcn.internal.nop = adev->vcn.inst->external.nop =
136 		SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
137 
138 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
139 		enum amdgpu_ring_priority_level hw_prio = amdgpu_vcn_get_enc_ring_prio(i);
140 
141 		ring = &adev->vcn.inst->ring_enc[i];
142 		sprintf(ring->name, "vcn_enc%d", i);
143 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
144 				     hw_prio, NULL);
145 		if (r)
146 			return r;
147 	}
148 
149 	adev->vcn.pause_dpg_mode = vcn_v1_0_pause_dpg_mode;
150 
151 	r = jpeg_v1_0_sw_init(handle);
152 
153 	return r;
154 }
155 
156 /**
157  * vcn_v1_0_sw_fini - sw fini for VCN block
158  *
159  * @handle: amdgpu_device pointer
160  *
161  * VCN suspend and free up sw allocation
162  */
163 static int vcn_v1_0_sw_fini(void *handle)
164 {
165 	int r;
166 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
167 
168 	r = amdgpu_vcn_suspend(adev);
169 	if (r)
170 		return r;
171 
172 	jpeg_v1_0_sw_fini(handle);
173 
174 	r = amdgpu_vcn_sw_fini(adev);
175 
176 	return r;
177 }
178 
179 /**
180  * vcn_v1_0_hw_init - start and test VCN block
181  *
182  * @handle: amdgpu_device pointer
183  *
184  * Initialize the hardware, boot up the VCPU and do some testing
185  */
186 static int vcn_v1_0_hw_init(void *handle)
187 {
188 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
189 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
190 	int i, r;
191 
192 	r = amdgpu_ring_test_helper(ring);
193 	if (r)
194 		goto done;
195 
196 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
197 		ring = &adev->vcn.inst->ring_enc[i];
198 		r = amdgpu_ring_test_helper(ring);
199 		if (r)
200 			goto done;
201 	}
202 
203 	ring = &adev->jpeg.inst->ring_dec;
204 	r = amdgpu_ring_test_helper(ring);
205 	if (r)
206 		goto done;
207 
208 done:
209 	if (!r)
210 		DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
211 			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
212 
213 	return r;
214 }
215 
216 /**
217  * vcn_v1_0_hw_fini - stop the hardware block
218  *
219  * @handle: amdgpu_device pointer
220  *
221  * Stop the VCN block, mark ring as not ready any more
222  */
223 static int vcn_v1_0_hw_fini(void *handle)
224 {
225 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
226 
227 	cancel_delayed_work_sync(&adev->vcn.idle_work);
228 
229 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
230 		(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
231 		 RREG32_SOC15(VCN, 0, mmUVD_STATUS))) {
232 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
233 	}
234 
235 	return 0;
236 }
237 
238 /**
239  * vcn_v1_0_suspend - suspend VCN block
240  *
241  * @handle: amdgpu_device pointer
242  *
243  * HW fini and suspend VCN block
244  */
245 static int vcn_v1_0_suspend(void *handle)
246 {
247 	int r;
248 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
249 
250 	r = vcn_v1_0_hw_fini(adev);
251 	if (r)
252 		return r;
253 
254 	r = amdgpu_vcn_suspend(adev);
255 
256 	return r;
257 }
258 
259 /**
260  * vcn_v1_0_resume - resume VCN block
261  *
262  * @handle: amdgpu_device pointer
263  *
264  * Resume firmware and hw init VCN block
265  */
266 static int vcn_v1_0_resume(void *handle)
267 {
268 	int r;
269 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
270 
271 	r = amdgpu_vcn_resume(adev);
272 	if (r)
273 		return r;
274 
275 	r = vcn_v1_0_hw_init(adev);
276 
277 	return r;
278 }
279 
280 /**
281  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
282  *
283  * @adev: amdgpu_device pointer
284  *
285  * Let the VCN memory controller know it's offsets
286  */
287 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
288 {
289 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
290 	uint32_t offset;
291 
292 	/* cache window 0: fw */
293 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
294 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
295 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
296 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
297 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
298 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
299 		offset = 0;
300 	} else {
301 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
302 			lower_32_bits(adev->vcn.inst->gpu_addr));
303 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
304 			upper_32_bits(adev->vcn.inst->gpu_addr));
305 		offset = size;
306 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
307 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
308 	}
309 
310 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
311 
312 	/* cache window 1: stack */
313 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
314 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
315 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
316 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
317 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
318 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
319 
320 	/* cache window 2: context */
321 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
322 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
323 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
324 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
325 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
326 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
327 
328 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
329 			adev->gfx.config.gb_addr_config);
330 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
331 			adev->gfx.config.gb_addr_config);
332 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
333 			adev->gfx.config.gb_addr_config);
334 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
335 			adev->gfx.config.gb_addr_config);
336 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
337 			adev->gfx.config.gb_addr_config);
338 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
339 			adev->gfx.config.gb_addr_config);
340 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
341 			adev->gfx.config.gb_addr_config);
342 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
343 			adev->gfx.config.gb_addr_config);
344 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
345 			adev->gfx.config.gb_addr_config);
346 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
347 			adev->gfx.config.gb_addr_config);
348 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
349 			adev->gfx.config.gb_addr_config);
350 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
351 			adev->gfx.config.gb_addr_config);
352 }
353 
354 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
355 {
356 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
357 	uint32_t offset;
358 
359 	/* cache window 0: fw */
360 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
361 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
362 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
363 			     0xFFFFFFFF, 0);
364 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
365 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
366 			     0xFFFFFFFF, 0);
367 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
368 			     0xFFFFFFFF, 0);
369 		offset = 0;
370 	} else {
371 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
372 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
373 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
374 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
375 		offset = size;
376 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
377 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
378 	}
379 
380 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
381 
382 	/* cache window 1: stack */
383 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
384 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
385 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
386 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
387 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
388 			     0xFFFFFFFF, 0);
389 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
390 			     0xFFFFFFFF, 0);
391 
392 	/* cache window 2: context */
393 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
394 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
395 			     0xFFFFFFFF, 0);
396 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
397 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
398 			     0xFFFFFFFF, 0);
399 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
400 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
401 			     0xFFFFFFFF, 0);
402 
403 	/* VCN global tiling registers */
404 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
405 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
406 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
407 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
408 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
409 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
410 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
411 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
412 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
413 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
414 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
415 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
416 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
417 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
418 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
419 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
420 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
421 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
422 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
423 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
424 }
425 
426 /**
427  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
428  *
429  * @adev: amdgpu_device pointer
430  *
431  * Disable clock gating for VCN block
432  */
433 static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
434 {
435 	uint32_t data;
436 
437 	/* JPEG disable CGC */
438 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
439 
440 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
441 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
442 	else
443 		data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
444 
445 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
446 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
447 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
448 
449 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
450 	data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
451 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
452 
453 	/* UVD disable CGC */
454 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
455 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
456 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
457 	else
458 		data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
459 
460 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
461 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
462 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
463 
464 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
465 	data &= ~(UVD_CGC_GATE__SYS_MASK
466 		| UVD_CGC_GATE__UDEC_MASK
467 		| UVD_CGC_GATE__MPEG2_MASK
468 		| UVD_CGC_GATE__REGS_MASK
469 		| UVD_CGC_GATE__RBC_MASK
470 		| UVD_CGC_GATE__LMI_MC_MASK
471 		| UVD_CGC_GATE__LMI_UMC_MASK
472 		| UVD_CGC_GATE__IDCT_MASK
473 		| UVD_CGC_GATE__MPRD_MASK
474 		| UVD_CGC_GATE__MPC_MASK
475 		| UVD_CGC_GATE__LBSI_MASK
476 		| UVD_CGC_GATE__LRBBM_MASK
477 		| UVD_CGC_GATE__UDEC_RE_MASK
478 		| UVD_CGC_GATE__UDEC_CM_MASK
479 		| UVD_CGC_GATE__UDEC_IT_MASK
480 		| UVD_CGC_GATE__UDEC_DB_MASK
481 		| UVD_CGC_GATE__UDEC_MP_MASK
482 		| UVD_CGC_GATE__WCB_MASK
483 		| UVD_CGC_GATE__VCPU_MASK
484 		| UVD_CGC_GATE__SCPU_MASK);
485 	WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);
486 
487 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
488 	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
489 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
490 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
491 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
492 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
493 		| UVD_CGC_CTRL__SYS_MODE_MASK
494 		| UVD_CGC_CTRL__UDEC_MODE_MASK
495 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
496 		| UVD_CGC_CTRL__REGS_MODE_MASK
497 		| UVD_CGC_CTRL__RBC_MODE_MASK
498 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
499 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
500 		| UVD_CGC_CTRL__IDCT_MODE_MASK
501 		| UVD_CGC_CTRL__MPRD_MODE_MASK
502 		| UVD_CGC_CTRL__MPC_MODE_MASK
503 		| UVD_CGC_CTRL__LBSI_MODE_MASK
504 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
505 		| UVD_CGC_CTRL__WCB_MODE_MASK
506 		| UVD_CGC_CTRL__VCPU_MODE_MASK
507 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
508 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
509 
510 	/* turn on */
511 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
512 	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
513 		| UVD_SUVD_CGC_GATE__SIT_MASK
514 		| UVD_SUVD_CGC_GATE__SMP_MASK
515 		| UVD_SUVD_CGC_GATE__SCM_MASK
516 		| UVD_SUVD_CGC_GATE__SDB_MASK
517 		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
518 		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
519 		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
520 		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
521 		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
522 		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
523 		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
524 		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
525 		| UVD_SUVD_CGC_GATE__SCLR_MASK
526 		| UVD_SUVD_CGC_GATE__UVD_SC_MASK
527 		| UVD_SUVD_CGC_GATE__ENT_MASK
528 		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
529 		| UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
530 		| UVD_SUVD_CGC_GATE__SITE_MASK
531 		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
532 		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
533 		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
534 		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
535 		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
536 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);
537 
538 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
539 	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
540 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
541 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
542 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
543 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
544 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
545 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
546 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
547 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
548 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
549 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
550 }
551 
552 /**
553  * vcn_v1_0_enable_clock_gating - enable VCN clock gating
554  *
555  * @adev: amdgpu_device pointer
556  *
557  * Enable clock gating for VCN block
558  */
559 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
560 {
561 	uint32_t data = 0;
562 
563 	/* enable JPEG CGC */
564 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
565 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
566 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
567 	else
568 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
569 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
570 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
571 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
572 
573 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
574 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
575 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
576 
577 	/* enable UVD CGC */
578 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
579 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
580 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
581 	else
582 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
583 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
584 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
585 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
586 
587 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
588 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
589 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
590 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
591 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
592 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
593 		| UVD_CGC_CTRL__SYS_MODE_MASK
594 		| UVD_CGC_CTRL__UDEC_MODE_MASK
595 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
596 		| UVD_CGC_CTRL__REGS_MODE_MASK
597 		| UVD_CGC_CTRL__RBC_MODE_MASK
598 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
599 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
600 		| UVD_CGC_CTRL__IDCT_MODE_MASK
601 		| UVD_CGC_CTRL__MPRD_MODE_MASK
602 		| UVD_CGC_CTRL__MPC_MODE_MASK
603 		| UVD_CGC_CTRL__LBSI_MODE_MASK
604 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
605 		| UVD_CGC_CTRL__WCB_MODE_MASK
606 		| UVD_CGC_CTRL__VCPU_MODE_MASK
607 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
608 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
609 
610 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
611 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
612 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
613 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
614 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
615 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
616 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
617 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
618 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
619 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
620 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
621 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
622 }
623 
624 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
625 {
626 	uint32_t reg_data = 0;
627 
628 	/* disable JPEG CGC */
629 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
630 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
631 	else
632 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
633 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
634 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
635 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
636 
637 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
638 
639 	/* enable sw clock gating control */
640 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
641 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
642 	else
643 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
644 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
645 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
646 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
647 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
648 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
649 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
650 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
651 		 UVD_CGC_CTRL__SYS_MODE_MASK |
652 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
653 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
654 		 UVD_CGC_CTRL__REGS_MODE_MASK |
655 		 UVD_CGC_CTRL__RBC_MODE_MASK |
656 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
657 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
658 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
659 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
660 		 UVD_CGC_CTRL__MPC_MODE_MASK |
661 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
662 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
663 		 UVD_CGC_CTRL__WCB_MODE_MASK |
664 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
665 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
666 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
667 
668 	/* turn off clock gating */
669 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
670 
671 	/* turn on SUVD clock gating */
672 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
673 
674 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
675 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
676 }
677 
678 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
679 {
680 	uint32_t data = 0;
681 
682 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
683 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
684 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
685 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
686 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
687 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
688 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
689 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
690 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
691 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
692 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
693 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
694 
695 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
696 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF);
697 	} else {
698 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
699 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
700 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
701 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
702 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
703 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
704 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
705 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
706 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
707 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
708 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
709 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
710 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF);
711 	}
712 
713 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
714 
715 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
716 	data &= ~0x103;
717 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
718 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
719 
720 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
721 }
722 
723 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
724 {
725 	uint32_t data = 0;
726 
727 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
728 		/* Before power off, this indicator has to be turned on */
729 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
730 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
731 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
732 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
733 
734 
735 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
736 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
737 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
738 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
739 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
740 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
741 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
742 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
743 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
744 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
745 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
746 
747 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
748 
749 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
750 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
751 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
752 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
753 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
754 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
755 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
756 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
757 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
758 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
759 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
760 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF);
761 	}
762 }
763 
764 /**
765  * vcn_v1_0_start_spg_mode - start VCN block
766  *
767  * @adev: amdgpu_device pointer
768  *
769  * Setup and start the VCN block
770  */
771 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
772 {
773 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
774 	uint32_t rb_bufsz, tmp;
775 	uint32_t lmi_swap_cntl;
776 	int i, j, r;
777 
778 	/* disable byte swapping */
779 	lmi_swap_cntl = 0;
780 
781 	vcn_1_0_disable_static_power_gating(adev);
782 
783 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
784 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
785 
786 	/* disable clock gating */
787 	vcn_v1_0_disable_clock_gating(adev);
788 
789 	/* disable interupt */
790 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
791 			~UVD_MASTINT_EN__VCPU_EN_MASK);
792 
793 	/* initialize VCN memory controller */
794 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
795 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
796 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
797 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
798 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
799 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
800 
801 #ifdef __BIG_ENDIAN
802 	/* swap (8 in 32) RB and IB */
803 	lmi_swap_cntl = 0xa;
804 #endif
805 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
806 
807 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
808 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
809 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
810 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
811 
812 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
813 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
814 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
815 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
816 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
817 
818 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
819 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
820 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
821 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
822 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
823 
824 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
825 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
826 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
827 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
828 
829 	vcn_v1_0_mc_resume_spg_mode(adev);
830 
831 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
832 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
833 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
834 
835 	/* enable VCPU clock */
836 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
837 
838 	/* boot up the VCPU */
839 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
840 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
841 
842 	/* enable UMC */
843 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
844 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
845 
846 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
847 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
848 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
849 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
850 
851 	for (i = 0; i < 10; ++i) {
852 		uint32_t status;
853 
854 		for (j = 0; j < 100; ++j) {
855 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
856 			if (status & UVD_STATUS__IDLE)
857 				break;
858 			mdelay(10);
859 		}
860 		r = 0;
861 		if (status & UVD_STATUS__IDLE)
862 			break;
863 
864 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
865 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
866 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
867 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
868 		mdelay(10);
869 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
870 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
871 		mdelay(10);
872 		r = -1;
873 	}
874 
875 	if (r) {
876 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
877 		return r;
878 	}
879 	/* enable master interrupt */
880 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
881 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
882 
883 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
884 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
885 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
886 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
887 
888 	/* clear the busy bit of UVD_STATUS */
889 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
890 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
891 
892 	/* force RBC into idle state */
893 	rb_bufsz = order_base_2(ring->ring_size);
894 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
895 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
896 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
897 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
898 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
899 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
900 
901 	/* set the write pointer delay */
902 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
903 
904 	/* set the wb address */
905 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
906 			(upper_32_bits(ring->gpu_addr) >> 2));
907 
908 	/* program the RB_BASE for ring buffer */
909 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
910 			lower_32_bits(ring->gpu_addr));
911 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
912 			upper_32_bits(ring->gpu_addr));
913 
914 	/* Initialize the ring buffer's read and write pointers */
915 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
916 
917 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
918 
919 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
920 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
921 			lower_32_bits(ring->wptr));
922 
923 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
924 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
925 
926 	ring = &adev->vcn.inst->ring_enc[0];
927 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
928 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
929 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
930 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
931 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
932 
933 	ring = &adev->vcn.inst->ring_enc[1];
934 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
935 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
936 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
937 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
938 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
939 
940 	jpeg_v1_0_start(adev, 0);
941 
942 	return 0;
943 }
944 
945 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
946 {
947 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
948 	uint32_t rb_bufsz, tmp;
949 	uint32_t lmi_swap_cntl;
950 
951 	/* disable byte swapping */
952 	lmi_swap_cntl = 0;
953 
954 	vcn_1_0_enable_static_power_gating(adev);
955 
956 	/* enable dynamic power gating mode */
957 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
958 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
959 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
960 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
961 
962 	/* enable clock gating */
963 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
964 
965 	/* enable VCPU clock */
966 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
967 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
968 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
969 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
970 
971 	/* disable interupt */
972 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
973 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
974 
975 	/* initialize VCN memory controller */
976 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
977 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
978 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
979 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
980 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
981 		UVD_LMI_CTRL__REQ_MODE_MASK |
982 		UVD_LMI_CTRL__CRC_RESET_MASK |
983 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
984 		0x00100000L, 0xFFFFFFFF, 0);
985 
986 #ifdef __BIG_ENDIAN
987 	/* swap (8 in 32) RB and IB */
988 	lmi_swap_cntl = 0xa;
989 #endif
990 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
991 
992 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_CNTL,
993 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
994 
995 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXA0,
996 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
997 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
998 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
999 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1000 
1001 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXB0,
1002 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1003 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1004 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1005 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1006 
1007 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUX,
1008 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1009 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1010 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1011 
1012 	vcn_v1_0_mc_resume_dpg_mode(adev);
1013 
1014 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1015 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1016 
1017 	/* boot up the VCPU */
1018 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1019 
1020 	/* enable UMC */
1021 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL2,
1022 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1023 		0xFFFFFFFF, 0);
1024 
1025 	/* enable master interrupt */
1026 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
1027 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1028 
1029 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1030 	/* setup mmUVD_LMI_CTRL */
1031 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
1032 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1033 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1034 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1035 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1036 		UVD_LMI_CTRL__REQ_MODE_MASK |
1037 		UVD_LMI_CTRL__CRC_RESET_MASK |
1038 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1039 		0x00100000L, 0xFFFFFFFF, 1);
1040 
1041 	tmp = adev->gfx.config.gb_addr_config;
1042 	/* setup VCN global tiling registers */
1043 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1044 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1045 
1046 	/* enable System Interrupt for JRBC */
1047 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SYS_INT_EN,
1048 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1049 
1050 	/* force RBC into idle state */
1051 	rb_bufsz = order_base_2(ring->ring_size);
1052 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1053 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1054 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1055 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1056 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1057 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1058 
1059 	/* set the write pointer delay */
1060 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1061 
1062 	/* set the wb address */
1063 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1064 								(upper_32_bits(ring->gpu_addr) >> 2));
1065 
1066 	/* program the RB_BASE for ring buffer */
1067 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1068 								lower_32_bits(ring->gpu_addr));
1069 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1070 								upper_32_bits(ring->gpu_addr));
1071 
1072 	/* Initialize the ring buffer's read and write pointers */
1073 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1074 
1075 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1076 
1077 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1078 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1079 								lower_32_bits(ring->wptr));
1080 
1081 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1082 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1083 
1084 	jpeg_v1_0_start(adev, 1);
1085 
1086 	return 0;
1087 }
1088 
1089 static int vcn_v1_0_start(struct amdgpu_device *adev)
1090 {
1091 	int r;
1092 
1093 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1094 		r = vcn_v1_0_start_dpg_mode(adev);
1095 	else
1096 		r = vcn_v1_0_start_spg_mode(adev);
1097 	return r;
1098 }
1099 
1100 /**
1101  * vcn_v1_0_stop_spg_mode - stop VCN block
1102  *
1103  * @adev: amdgpu_device pointer
1104  *
1105  * stop the VCN block
1106  */
1107 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1108 {
1109 	int tmp;
1110 
1111 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7);
1112 
1113 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1114 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1115 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1116 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1117 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1118 
1119 	/* stall UMC channel */
1120 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
1121 		UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
1122 		~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
1123 
1124 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1125 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1126 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1127 
1128 	/* disable VCPU clock */
1129 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1130 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1131 
1132 	/* reset LMI UMC/LMI */
1133 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1134 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1135 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1136 
1137 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1138 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1139 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1140 
1141 	/* put VCPU into reset */
1142 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1143 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1144 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1145 
1146 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1147 
1148 	vcn_v1_0_enable_clock_gating(adev);
1149 	vcn_1_0_enable_static_power_gating(adev);
1150 	return 0;
1151 }
1152 
1153 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1154 {
1155 	uint32_t tmp;
1156 
1157 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1158 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1159 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1160 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1161 
1162 	/* wait for read ptr to be equal to write ptr */
1163 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1164 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF);
1165 
1166 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1167 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
1168 
1169 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1170 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF);
1171 
1172 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1173 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF);
1174 
1175 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1176 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1177 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1178 
1179 	/* disable dynamic power gating mode */
1180 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1181 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1182 
1183 	return 0;
1184 }
1185 
1186 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1187 {
1188 	int r;
1189 
1190 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1191 		r = vcn_v1_0_stop_dpg_mode(adev);
1192 	else
1193 		r = vcn_v1_0_stop_spg_mode(adev);
1194 
1195 	return r;
1196 }
1197 
1198 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1199 				int inst_idx, struct dpg_pause_state *new_state)
1200 {
1201 	int ret_code;
1202 	uint32_t reg_data = 0;
1203 	uint32_t reg_data2 = 0;
1204 	struct amdgpu_ring *ring;
1205 
1206 	/* pause/unpause if state is changed */
1207 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1208 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1209 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1210 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1211 			new_state->fw_based, new_state->jpeg);
1212 
1213 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1214 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1215 
1216 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1217 			ret_code = 0;
1218 
1219 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1220 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1221 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1222 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1223 
1224 			if (!ret_code) {
1225 				/* pause DPG non-jpeg */
1226 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1227 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1228 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1229 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1230 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1231 
1232 				/* Restore */
1233 				ring = &adev->vcn.inst->ring_enc[0];
1234 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1235 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1236 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1237 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1238 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1239 
1240 				ring = &adev->vcn.inst->ring_enc[1];
1241 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1242 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1243 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1244 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1245 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1246 
1247 				ring = &adev->vcn.inst->ring_dec;
1248 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1249 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1250 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1251 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1252 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1253 			}
1254 		} else {
1255 			/* unpause dpg non-jpeg, no need to wait */
1256 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1257 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1258 		}
1259 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1260 	}
1261 
1262 	/* pause/unpause if state is changed */
1263 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1264 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1265 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1266 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1267 			new_state->fw_based, new_state->jpeg);
1268 
1269 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1270 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1271 
1272 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1273 			ret_code = 0;
1274 
1275 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1276 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1277 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1278 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1279 
1280 			if (!ret_code) {
1281 				/* Make sure JPRG Snoop is disabled before sending the pause */
1282 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1283 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1284 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1285 
1286 				/* pause DPG jpeg */
1287 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1288 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1289 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1290 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1291 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1292 
1293 				/* Restore */
1294 				ring = &adev->jpeg.inst->ring_dec;
1295 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1296 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1297 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1298 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1299 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1300 							lower_32_bits(ring->gpu_addr));
1301 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1302 							upper_32_bits(ring->gpu_addr));
1303 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1304 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1305 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1306 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1307 
1308 				ring = &adev->vcn.inst->ring_dec;
1309 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1310 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1311 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1312 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1313 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1314 			}
1315 		} else {
1316 			/* unpause dpg jpeg, no need to wait */
1317 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1318 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1319 		}
1320 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1321 	}
1322 
1323 	return 0;
1324 }
1325 
1326 static bool vcn_v1_0_is_idle(void *handle)
1327 {
1328 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1329 
1330 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1331 }
1332 
1333 static int vcn_v1_0_wait_for_idle(void *handle)
1334 {
1335 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1336 	int ret;
1337 
1338 	ret = SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1339 		UVD_STATUS__IDLE);
1340 
1341 	return ret;
1342 }
1343 
1344 static int vcn_v1_0_set_clockgating_state(void *handle,
1345 					  enum amd_clockgating_state state)
1346 {
1347 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1348 	bool enable = (state == AMD_CG_STATE_GATE);
1349 
1350 	if (enable) {
1351 		/* wait for STATUS to clear */
1352 		if (!vcn_v1_0_is_idle(handle))
1353 			return -EBUSY;
1354 		vcn_v1_0_enable_clock_gating(adev);
1355 	} else {
1356 		/* disable HW gating and enable Sw gating */
1357 		vcn_v1_0_disable_clock_gating(adev);
1358 	}
1359 	return 0;
1360 }
1361 
1362 /**
1363  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1364  *
1365  * @ring: amdgpu_ring pointer
1366  *
1367  * Returns the current hardware read pointer
1368  */
1369 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1370 {
1371 	struct amdgpu_device *adev = ring->adev;
1372 
1373 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1374 }
1375 
1376 /**
1377  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1378  *
1379  * @ring: amdgpu_ring pointer
1380  *
1381  * Returns the current hardware write pointer
1382  */
1383 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1384 {
1385 	struct amdgpu_device *adev = ring->adev;
1386 
1387 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1388 }
1389 
1390 /**
1391  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1392  *
1393  * @ring: amdgpu_ring pointer
1394  *
1395  * Commits the write pointer to the hardware
1396  */
1397 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1398 {
1399 	struct amdgpu_device *adev = ring->adev;
1400 
1401 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1402 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1403 			lower_32_bits(ring->wptr) | 0x80000000);
1404 
1405 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1406 }
1407 
1408 /**
1409  * vcn_v1_0_dec_ring_insert_start - insert a start command
1410  *
1411  * @ring: amdgpu_ring pointer
1412  *
1413  * Write a start command to the ring.
1414  */
1415 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1416 {
1417 	struct amdgpu_device *adev = ring->adev;
1418 
1419 	amdgpu_ring_write(ring,
1420 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1421 	amdgpu_ring_write(ring, 0);
1422 	amdgpu_ring_write(ring,
1423 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1424 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1425 }
1426 
1427 /**
1428  * vcn_v1_0_dec_ring_insert_end - insert a end command
1429  *
1430  * @ring: amdgpu_ring pointer
1431  *
1432  * Write a end command to the ring.
1433  */
1434 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1435 {
1436 	struct amdgpu_device *adev = ring->adev;
1437 
1438 	amdgpu_ring_write(ring,
1439 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1440 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1441 }
1442 
1443 /**
1444  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1445  *
1446  * @ring: amdgpu_ring pointer
1447  * @addr: address
1448  * @seq: sequence number
1449  * @flags: fence related flags
1450  *
1451  * Write a fence and a trap command to the ring.
1452  */
1453 static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
1454 				     unsigned flags)
1455 {
1456 	struct amdgpu_device *adev = ring->adev;
1457 
1458 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1459 
1460 	amdgpu_ring_write(ring,
1461 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
1462 	amdgpu_ring_write(ring, seq);
1463 	amdgpu_ring_write(ring,
1464 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1465 	amdgpu_ring_write(ring, addr & 0xffffffff);
1466 	amdgpu_ring_write(ring,
1467 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1468 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
1469 	amdgpu_ring_write(ring,
1470 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1471 	amdgpu_ring_write(ring, VCN_DEC_CMD_FENCE << 1);
1472 
1473 	amdgpu_ring_write(ring,
1474 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1475 	amdgpu_ring_write(ring, 0);
1476 	amdgpu_ring_write(ring,
1477 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1478 	amdgpu_ring_write(ring, 0);
1479 	amdgpu_ring_write(ring,
1480 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1481 	amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
1482 }
1483 
1484 /**
1485  * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
1486  *
1487  * @ring: amdgpu_ring pointer
1488  * @job: job to retrieve vmid from
1489  * @ib: indirect buffer to execute
1490  * @flags: unused
1491  *
1492  * Write ring commands to execute the indirect buffer
1493  */
1494 static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
1495 					struct amdgpu_job *job,
1496 					struct amdgpu_ib *ib,
1497 					uint32_t flags)
1498 {
1499 	struct amdgpu_device *adev = ring->adev;
1500 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1501 
1502 	amdgpu_ring_write(ring,
1503 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
1504 	amdgpu_ring_write(ring, vmid);
1505 
1506 	amdgpu_ring_write(ring,
1507 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
1508 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1509 	amdgpu_ring_write(ring,
1510 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
1511 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1512 	amdgpu_ring_write(ring,
1513 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
1514 	amdgpu_ring_write(ring, ib->length_dw);
1515 }
1516 
1517 static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
1518 					    uint32_t reg, uint32_t val,
1519 					    uint32_t mask)
1520 {
1521 	struct amdgpu_device *adev = ring->adev;
1522 
1523 	amdgpu_ring_write(ring,
1524 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1525 	amdgpu_ring_write(ring, reg << 2);
1526 	amdgpu_ring_write(ring,
1527 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1528 	amdgpu_ring_write(ring, val);
1529 	amdgpu_ring_write(ring,
1530 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
1531 	amdgpu_ring_write(ring, mask);
1532 	amdgpu_ring_write(ring,
1533 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1534 	amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
1535 }
1536 
1537 static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
1538 					    unsigned vmid, uint64_t pd_addr)
1539 {
1540 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1541 	uint32_t data0, data1, mask;
1542 
1543 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1544 
1545 	/* wait for register write */
1546 	data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
1547 	data1 = lower_32_bits(pd_addr);
1548 	mask = 0xffffffff;
1549 	vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
1550 }
1551 
1552 static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
1553 					uint32_t reg, uint32_t val)
1554 {
1555 	struct amdgpu_device *adev = ring->adev;
1556 
1557 	amdgpu_ring_write(ring,
1558 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1559 	amdgpu_ring_write(ring, reg << 2);
1560 	amdgpu_ring_write(ring,
1561 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1562 	amdgpu_ring_write(ring, val);
1563 	amdgpu_ring_write(ring,
1564 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1565 	amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
1566 }
1567 
1568 /**
1569  * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
1570  *
1571  * @ring: amdgpu_ring pointer
1572  *
1573  * Returns the current hardware enc read pointer
1574  */
1575 static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
1576 {
1577 	struct amdgpu_device *adev = ring->adev;
1578 
1579 	if (ring == &adev->vcn.inst->ring_enc[0])
1580 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
1581 	else
1582 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
1583 }
1584 
1585  /**
1586  * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
1587  *
1588  * @ring: amdgpu_ring pointer
1589  *
1590  * Returns the current hardware enc write pointer
1591  */
1592 static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
1593 {
1594 	struct amdgpu_device *adev = ring->adev;
1595 
1596 	if (ring == &adev->vcn.inst->ring_enc[0])
1597 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1598 	else
1599 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1600 }
1601 
1602  /**
1603  * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
1604  *
1605  * @ring: amdgpu_ring pointer
1606  *
1607  * Commits the enc write pointer to the hardware
1608  */
1609 static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
1610 {
1611 	struct amdgpu_device *adev = ring->adev;
1612 
1613 	if (ring == &adev->vcn.inst->ring_enc[0])
1614 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
1615 			lower_32_bits(ring->wptr));
1616 	else
1617 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
1618 			lower_32_bits(ring->wptr));
1619 }
1620 
1621 /**
1622  * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
1623  *
1624  * @ring: amdgpu_ring pointer
1625  * @addr: address
1626  * @seq: sequence number
1627  * @flags: fence related flags
1628  *
1629  * Write enc a fence and a trap command to the ring.
1630  */
1631 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1632 			u64 seq, unsigned flags)
1633 {
1634 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1635 
1636 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1637 	amdgpu_ring_write(ring, addr);
1638 	amdgpu_ring_write(ring, upper_32_bits(addr));
1639 	amdgpu_ring_write(ring, seq);
1640 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1641 }
1642 
1643 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1644 {
1645 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1646 }
1647 
1648 /**
1649  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1650  *
1651  * @ring: amdgpu_ring pointer
1652  * @job: job to retrive vmid from
1653  * @ib: indirect buffer to execute
1654  * @flags: unused
1655  *
1656  * Write enc ring commands to execute the indirect buffer
1657  */
1658 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1659 					struct amdgpu_job *job,
1660 					struct amdgpu_ib *ib,
1661 					uint32_t flags)
1662 {
1663 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1664 
1665 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1666 	amdgpu_ring_write(ring, vmid);
1667 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1668 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1669 	amdgpu_ring_write(ring, ib->length_dw);
1670 }
1671 
1672 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1673 					    uint32_t reg, uint32_t val,
1674 					    uint32_t mask)
1675 {
1676 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1677 	amdgpu_ring_write(ring, reg << 2);
1678 	amdgpu_ring_write(ring, mask);
1679 	amdgpu_ring_write(ring, val);
1680 }
1681 
1682 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1683 					    unsigned int vmid, uint64_t pd_addr)
1684 {
1685 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1686 
1687 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1688 
1689 	/* wait for reg writes */
1690 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
1691 					vmid * hub->ctx_addr_distance,
1692 					lower_32_bits(pd_addr), 0xffffffff);
1693 }
1694 
1695 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1696 					uint32_t reg, uint32_t val)
1697 {
1698 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1699 	amdgpu_ring_write(ring,	reg << 2);
1700 	amdgpu_ring_write(ring, val);
1701 }
1702 
1703 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1704 					struct amdgpu_irq_src *source,
1705 					unsigned type,
1706 					enum amdgpu_interrupt_state state)
1707 {
1708 	return 0;
1709 }
1710 
1711 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1712 				      struct amdgpu_irq_src *source,
1713 				      struct amdgpu_iv_entry *entry)
1714 {
1715 	DRM_DEBUG("IH: VCN TRAP\n");
1716 
1717 	switch (entry->src_id) {
1718 	case 124:
1719 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1720 		break;
1721 	case 119:
1722 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1723 		break;
1724 	case 120:
1725 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1726 		break;
1727 	default:
1728 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1729 			  entry->src_id, entry->src_data[0]);
1730 		break;
1731 	}
1732 
1733 	return 0;
1734 }
1735 
1736 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1737 {
1738 	struct amdgpu_device *adev = ring->adev;
1739 	int i;
1740 
1741 	WARN_ON(ring->wptr % 2 || count % 2);
1742 
1743 	for (i = 0; i < count / 2; i++) {
1744 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1745 		amdgpu_ring_write(ring, 0);
1746 	}
1747 }
1748 
1749 static int vcn_v1_0_set_powergating_state(void *handle,
1750 					  enum amd_powergating_state state)
1751 {
1752 	/* This doesn't actually powergate the VCN block.
1753 	 * That's done in the dpm code via the SMC.  This
1754 	 * just re-inits the block as necessary.  The actual
1755 	 * gating still happens in the dpm code.  We should
1756 	 * revisit this when there is a cleaner line between
1757 	 * the smc and the hw blocks
1758 	 */
1759 	int ret;
1760 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1761 
1762 	if(state == adev->vcn.cur_state)
1763 		return 0;
1764 
1765 	if (state == AMD_PG_STATE_GATE)
1766 		ret = vcn_v1_0_stop(adev);
1767 	else
1768 		ret = vcn_v1_0_start(adev);
1769 
1770 	if(!ret)
1771 		adev->vcn.cur_state = state;
1772 	return ret;
1773 }
1774 
1775 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1776 {
1777 	struct amdgpu_device *adev =
1778 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1779 	unsigned int fences = 0, i;
1780 
1781 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1782 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1783 
1784 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1785 		struct dpg_pause_state new_state;
1786 
1787 		if (fences)
1788 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1789 		else
1790 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1791 
1792 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1793 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1794 		else
1795 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1796 
1797 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1798 	}
1799 
1800 	fences += amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec);
1801 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1802 
1803 	if (fences == 0) {
1804 		amdgpu_gfx_off_ctrl(adev, true);
1805 		if (adev->pm.dpm_enabled)
1806 			amdgpu_dpm_enable_uvd(adev, false);
1807 		else
1808 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1809 			       AMD_PG_STATE_GATE);
1810 	} else {
1811 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1812 	}
1813 }
1814 
1815 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1816 {
1817 	struct	amdgpu_device *adev = ring->adev;
1818 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1819 
1820 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
1821 
1822 	if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec))
1823 		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
1824 
1825 	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
1826 
1827 }
1828 
1829 void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
1830 {
1831 	struct amdgpu_device *adev = ring->adev;
1832 
1833 	if (set_clocks) {
1834 		amdgpu_gfx_off_ctrl(adev, false);
1835 		if (adev->pm.dpm_enabled)
1836 			amdgpu_dpm_enable_uvd(adev, true);
1837 		else
1838 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1839 			       AMD_PG_STATE_UNGATE);
1840 	}
1841 
1842 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1843 		struct dpg_pause_state new_state;
1844 		unsigned int fences = 0, i;
1845 
1846 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1847 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1848 
1849 		if (fences)
1850 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1851 		else
1852 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1853 
1854 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1855 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1856 		else
1857 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1858 
1859 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1860 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1861 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1862 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1863 
1864 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1865 	}
1866 }
1867 
1868 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
1869 {
1870 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1871 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
1872 }
1873 
1874 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1875 	.name = "vcn_v1_0",
1876 	.early_init = vcn_v1_0_early_init,
1877 	.late_init = NULL,
1878 	.sw_init = vcn_v1_0_sw_init,
1879 	.sw_fini = vcn_v1_0_sw_fini,
1880 	.hw_init = vcn_v1_0_hw_init,
1881 	.hw_fini = vcn_v1_0_hw_fini,
1882 	.suspend = vcn_v1_0_suspend,
1883 	.resume = vcn_v1_0_resume,
1884 	.is_idle = vcn_v1_0_is_idle,
1885 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1886 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1887 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1888 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1889 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1890 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1891 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1892 };
1893 
1894 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1895 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1896 	.align_mask = 0xf,
1897 	.support_64bit_ptrs = false,
1898 	.no_user_fence = true,
1899 	.vmhub = AMDGPU_MMHUB_0,
1900 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1901 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1902 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1903 	.emit_frame_size =
1904 		6 + 6 + /* hdp invalidate / flush */
1905 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1906 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1907 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1908 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1909 		6,
1910 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1911 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1912 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1913 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1914 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1915 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1916 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
1917 	.insert_start = vcn_v1_0_dec_ring_insert_start,
1918 	.insert_end = vcn_v1_0_dec_ring_insert_end,
1919 	.pad_ib = amdgpu_ring_generic_pad_ib,
1920 	.begin_use = vcn_v1_0_ring_begin_use,
1921 	.end_use = vcn_v1_0_ring_end_use,
1922 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
1923 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
1924 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1925 };
1926 
1927 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
1928 	.type = AMDGPU_RING_TYPE_VCN_ENC,
1929 	.align_mask = 0x3f,
1930 	.nop = VCN_ENC_CMD_NO_OP,
1931 	.support_64bit_ptrs = false,
1932 	.no_user_fence = true,
1933 	.vmhub = AMDGPU_MMHUB_0,
1934 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
1935 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
1936 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
1937 	.emit_frame_size =
1938 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1939 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
1940 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
1941 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
1942 		1, /* vcn_v1_0_enc_ring_insert_end */
1943 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
1944 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
1945 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
1946 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
1947 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
1948 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
1949 	.insert_nop = amdgpu_ring_insert_nop,
1950 	.insert_end = vcn_v1_0_enc_ring_insert_end,
1951 	.pad_ib = amdgpu_ring_generic_pad_ib,
1952 	.begin_use = vcn_v1_0_ring_begin_use,
1953 	.end_use = vcn_v1_0_ring_end_use,
1954 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
1955 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
1956 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1957 };
1958 
1959 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
1960 {
1961 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
1962 	DRM_INFO("VCN decode is enabled in VM mode\n");
1963 }
1964 
1965 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
1966 {
1967 	int i;
1968 
1969 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1970 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
1971 
1972 	DRM_INFO("VCN encode is enabled in VM mode\n");
1973 }
1974 
1975 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
1976 	.set = vcn_v1_0_set_interrupt_state,
1977 	.process = vcn_v1_0_process_interrupt,
1978 };
1979 
1980 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
1981 {
1982 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
1983 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
1984 }
1985 
1986 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
1987 {
1988 		.type = AMD_IP_BLOCK_TYPE_VCN,
1989 		.major = 1,
1990 		.minor = 0,
1991 		.rev = 0,
1992 		.funcs = &vcn_v1_0_ip_funcs,
1993 };
1994