xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision 3a2699cf)
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
61  *
62  * @handle: amdgpu_device pointer
63  *
64  * Set ring and irq function pointers
65  */
66 static int vcn_v1_0_early_init(void *handle)
67 {
68 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
69 
70 	adev->vcn.num_enc_rings = 2;
71 
72 	vcn_v1_0_set_dec_ring_funcs(adev);
73 	vcn_v1_0_set_enc_ring_funcs(adev);
74 	vcn_v1_0_set_irq_funcs(adev);
75 
76 	jpeg_v1_0_early_init(handle);
77 
78 	return 0;
79 }
80 
81 /**
82  * vcn_v1_0_sw_init - sw init for VCN block
83  *
84  * @handle: amdgpu_device pointer
85  *
86  * Load firmware and sw initialization
87  */
88 static int vcn_v1_0_sw_init(void *handle)
89 {
90 	struct amdgpu_ring *ring;
91 	int i, r;
92 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
93 
94 	/* VCN DEC TRAP */
95 	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
96 			VCN_1_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.inst->irq);
97 	if (r)
98 		return r;
99 
100 	/* VCN ENC TRAP */
101 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
102 		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, i + VCN_1_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
103 					&adev->vcn.inst->irq);
104 		if (r)
105 			return r;
106 	}
107 
108 	r = amdgpu_vcn_sw_init(adev);
109 	if (r)
110 		return r;
111 
112 	/* Override the work func */
113 	adev->vcn.idle_work.work.func = vcn_v1_0_idle_work_handler;
114 
115 	amdgpu_vcn_setup_ucode(adev);
116 
117 	r = amdgpu_vcn_resume(adev);
118 	if (r)
119 		return r;
120 
121 	ring = &adev->vcn.inst->ring_dec;
122 	sprintf(ring->name, "vcn_dec");
123 	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
124 			     AMDGPU_RING_PRIO_DEFAULT, NULL);
125 	if (r)
126 		return r;
127 
128 	adev->vcn.internal.scratch9 = adev->vcn.inst->external.scratch9 =
129 		SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
130 	adev->vcn.internal.data0 = adev->vcn.inst->external.data0 =
131 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
132 	adev->vcn.internal.data1 = adev->vcn.inst->external.data1 =
133 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
134 	adev->vcn.internal.cmd = adev->vcn.inst->external.cmd =
135 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
136 	adev->vcn.internal.nop = adev->vcn.inst->external.nop =
137 		SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
138 
139 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
140 		enum amdgpu_ring_priority_level hw_prio = amdgpu_vcn_get_enc_ring_prio(i);
141 
142 		ring = &adev->vcn.inst->ring_enc[i];
143 		sprintf(ring->name, "vcn_enc%d", i);
144 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
145 				     hw_prio, NULL);
146 		if (r)
147 			return r;
148 	}
149 
150 	adev->vcn.pause_dpg_mode = vcn_v1_0_pause_dpg_mode;
151 
152 	if (amdgpu_vcnfw_log) {
153 		volatile struct amdgpu_fw_shared *fw_shared = adev->vcn.inst->fw_shared.cpu_addr;
154 
155 		fw_shared->present_flag_0 = 0;
156 		amdgpu_vcn_fwlog_init(adev->vcn.inst);
157 	}
158 
159 	r = jpeg_v1_0_sw_init(handle);
160 
161 	return r;
162 }
163 
164 /**
165  * vcn_v1_0_sw_fini - sw fini for VCN block
166  *
167  * @handle: amdgpu_device pointer
168  *
169  * VCN suspend and free up sw allocation
170  */
171 static int vcn_v1_0_sw_fini(void *handle)
172 {
173 	int r;
174 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
175 
176 	r = amdgpu_vcn_suspend(adev);
177 	if (r)
178 		return r;
179 
180 	jpeg_v1_0_sw_fini(handle);
181 
182 	r = amdgpu_vcn_sw_fini(adev);
183 
184 	return r;
185 }
186 
187 /**
188  * vcn_v1_0_hw_init - start and test VCN block
189  *
190  * @handle: amdgpu_device pointer
191  *
192  * Initialize the hardware, boot up the VCPU and do some testing
193  */
194 static int vcn_v1_0_hw_init(void *handle)
195 {
196 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
197 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
198 	int i, r;
199 
200 	r = amdgpu_ring_test_helper(ring);
201 	if (r)
202 		goto done;
203 
204 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
205 		ring = &adev->vcn.inst->ring_enc[i];
206 		r = amdgpu_ring_test_helper(ring);
207 		if (r)
208 			goto done;
209 	}
210 
211 	ring = &adev->jpeg.inst->ring_dec;
212 	r = amdgpu_ring_test_helper(ring);
213 	if (r)
214 		goto done;
215 
216 done:
217 	if (!r)
218 		DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
219 			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
220 
221 	return r;
222 }
223 
224 /**
225  * vcn_v1_0_hw_fini - stop the hardware block
226  *
227  * @handle: amdgpu_device pointer
228  *
229  * Stop the VCN block, mark ring as not ready any more
230  */
231 static int vcn_v1_0_hw_fini(void *handle)
232 {
233 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
234 
235 	cancel_delayed_work_sync(&adev->vcn.idle_work);
236 
237 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
238 		(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
239 		 RREG32_SOC15(VCN, 0, mmUVD_STATUS))) {
240 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
241 	}
242 
243 	return 0;
244 }
245 
246 /**
247  * vcn_v1_0_suspend - suspend VCN block
248  *
249  * @handle: amdgpu_device pointer
250  *
251  * HW fini and suspend VCN block
252  */
253 static int vcn_v1_0_suspend(void *handle)
254 {
255 	int r;
256 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
257 	bool idle_work_unexecuted;
258 
259 	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.idle_work);
260 	if (idle_work_unexecuted) {
261 		if (adev->pm.dpm_enabled)
262 			amdgpu_dpm_enable_uvd(adev, false);
263 	}
264 
265 	r = vcn_v1_0_hw_fini(adev);
266 	if (r)
267 		return r;
268 
269 	r = amdgpu_vcn_suspend(adev);
270 
271 	return r;
272 }
273 
274 /**
275  * vcn_v1_0_resume - resume VCN block
276  *
277  * @handle: amdgpu_device pointer
278  *
279  * Resume firmware and hw init VCN block
280  */
281 static int vcn_v1_0_resume(void *handle)
282 {
283 	int r;
284 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
285 
286 	r = amdgpu_vcn_resume(adev);
287 	if (r)
288 		return r;
289 
290 	r = vcn_v1_0_hw_init(adev);
291 
292 	return r;
293 }
294 
295 /**
296  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
297  *
298  * @adev: amdgpu_device pointer
299  *
300  * Let the VCN memory controller know it's offsets
301  */
302 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
303 {
304 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
305 	uint32_t offset;
306 
307 	/* cache window 0: fw */
308 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
309 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
310 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
311 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
312 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
313 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
314 		offset = 0;
315 	} else {
316 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
317 			lower_32_bits(adev->vcn.inst->gpu_addr));
318 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
319 			upper_32_bits(adev->vcn.inst->gpu_addr));
320 		offset = size;
321 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
322 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
323 	}
324 
325 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
326 
327 	/* cache window 1: stack */
328 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
329 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
330 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
331 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
332 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
333 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
334 
335 	/* cache window 2: context */
336 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
337 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
338 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
339 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
340 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
341 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
342 
343 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
344 			adev->gfx.config.gb_addr_config);
345 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
346 			adev->gfx.config.gb_addr_config);
347 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
348 			adev->gfx.config.gb_addr_config);
349 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
350 			adev->gfx.config.gb_addr_config);
351 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
352 			adev->gfx.config.gb_addr_config);
353 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
354 			adev->gfx.config.gb_addr_config);
355 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
356 			adev->gfx.config.gb_addr_config);
357 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
358 			adev->gfx.config.gb_addr_config);
359 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
360 			adev->gfx.config.gb_addr_config);
361 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
362 			adev->gfx.config.gb_addr_config);
363 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
364 			adev->gfx.config.gb_addr_config);
365 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
366 			adev->gfx.config.gb_addr_config);
367 }
368 
369 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
370 {
371 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
372 	uint32_t offset;
373 
374 	/* cache window 0: fw */
375 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
376 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
377 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
378 			     0xFFFFFFFF, 0);
379 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
380 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
381 			     0xFFFFFFFF, 0);
382 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
383 			     0xFFFFFFFF, 0);
384 		offset = 0;
385 	} else {
386 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
387 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
388 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
389 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
390 		offset = size;
391 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
392 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
393 	}
394 
395 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
396 
397 	/* cache window 1: stack */
398 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
399 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
400 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
401 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
402 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
403 			     0xFFFFFFFF, 0);
404 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
405 			     0xFFFFFFFF, 0);
406 
407 	/* cache window 2: context */
408 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
409 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
410 			     0xFFFFFFFF, 0);
411 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
412 		     upper_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_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
415 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
416 			     0xFFFFFFFF, 0);
417 
418 	/* VCN global tiling registers */
419 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
420 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
421 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
422 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
423 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
424 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
425 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
426 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
427 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
428 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
429 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
430 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
431 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
432 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
433 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
434 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
435 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
436 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
437 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
438 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
439 }
440 
441 /**
442  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
443  *
444  * @adev: amdgpu_device pointer
445  *
446  * Disable clock gating for VCN block
447  */
448 static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
449 {
450 	uint32_t data;
451 
452 	/* JPEG disable CGC */
453 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
454 
455 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
456 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
457 	else
458 		data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
459 
460 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
461 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
462 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
463 
464 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
465 	data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
466 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
467 
468 	/* UVD disable CGC */
469 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
470 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
471 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
472 	else
473 		data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
474 
475 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
476 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
477 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
478 
479 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
480 	data &= ~(UVD_CGC_GATE__SYS_MASK
481 		| UVD_CGC_GATE__UDEC_MASK
482 		| UVD_CGC_GATE__MPEG2_MASK
483 		| UVD_CGC_GATE__REGS_MASK
484 		| UVD_CGC_GATE__RBC_MASK
485 		| UVD_CGC_GATE__LMI_MC_MASK
486 		| UVD_CGC_GATE__LMI_UMC_MASK
487 		| UVD_CGC_GATE__IDCT_MASK
488 		| UVD_CGC_GATE__MPRD_MASK
489 		| UVD_CGC_GATE__MPC_MASK
490 		| UVD_CGC_GATE__LBSI_MASK
491 		| UVD_CGC_GATE__LRBBM_MASK
492 		| UVD_CGC_GATE__UDEC_RE_MASK
493 		| UVD_CGC_GATE__UDEC_CM_MASK
494 		| UVD_CGC_GATE__UDEC_IT_MASK
495 		| UVD_CGC_GATE__UDEC_DB_MASK
496 		| UVD_CGC_GATE__UDEC_MP_MASK
497 		| UVD_CGC_GATE__WCB_MASK
498 		| UVD_CGC_GATE__VCPU_MASK
499 		| UVD_CGC_GATE__SCPU_MASK);
500 	WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);
501 
502 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
503 	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
504 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
505 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
506 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
507 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
508 		| UVD_CGC_CTRL__SYS_MODE_MASK
509 		| UVD_CGC_CTRL__UDEC_MODE_MASK
510 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
511 		| UVD_CGC_CTRL__REGS_MODE_MASK
512 		| UVD_CGC_CTRL__RBC_MODE_MASK
513 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
514 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
515 		| UVD_CGC_CTRL__IDCT_MODE_MASK
516 		| UVD_CGC_CTRL__MPRD_MODE_MASK
517 		| UVD_CGC_CTRL__MPC_MODE_MASK
518 		| UVD_CGC_CTRL__LBSI_MODE_MASK
519 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
520 		| UVD_CGC_CTRL__WCB_MODE_MASK
521 		| UVD_CGC_CTRL__VCPU_MODE_MASK
522 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
523 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
524 
525 	/* turn on */
526 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
527 	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
528 		| UVD_SUVD_CGC_GATE__SIT_MASK
529 		| UVD_SUVD_CGC_GATE__SMP_MASK
530 		| UVD_SUVD_CGC_GATE__SCM_MASK
531 		| UVD_SUVD_CGC_GATE__SDB_MASK
532 		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
533 		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
534 		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
535 		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
536 		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
537 		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
538 		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
539 		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
540 		| UVD_SUVD_CGC_GATE__SCLR_MASK
541 		| UVD_SUVD_CGC_GATE__UVD_SC_MASK
542 		| UVD_SUVD_CGC_GATE__ENT_MASK
543 		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
544 		| UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
545 		| UVD_SUVD_CGC_GATE__SITE_MASK
546 		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
547 		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
548 		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
549 		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
550 		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
551 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);
552 
553 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
554 	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
555 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
556 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
557 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
558 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
559 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
560 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
561 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
562 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
563 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
564 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
565 }
566 
567 /**
568  * vcn_v1_0_enable_clock_gating - enable VCN clock gating
569  *
570  * @adev: amdgpu_device pointer
571  *
572  * Enable clock gating for VCN block
573  */
574 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
575 {
576 	uint32_t data = 0;
577 
578 	/* enable JPEG CGC */
579 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
580 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
581 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
582 	else
583 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
584 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
585 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
586 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
587 
588 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
589 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
590 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
591 
592 	/* enable UVD CGC */
593 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
594 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
595 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
596 	else
597 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
598 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
599 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
600 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
601 
602 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
603 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
604 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
605 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
606 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
607 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
608 		| UVD_CGC_CTRL__SYS_MODE_MASK
609 		| UVD_CGC_CTRL__UDEC_MODE_MASK
610 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
611 		| UVD_CGC_CTRL__REGS_MODE_MASK
612 		| UVD_CGC_CTRL__RBC_MODE_MASK
613 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
614 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
615 		| UVD_CGC_CTRL__IDCT_MODE_MASK
616 		| UVD_CGC_CTRL__MPRD_MODE_MASK
617 		| UVD_CGC_CTRL__MPC_MODE_MASK
618 		| UVD_CGC_CTRL__LBSI_MODE_MASK
619 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
620 		| UVD_CGC_CTRL__WCB_MODE_MASK
621 		| UVD_CGC_CTRL__VCPU_MODE_MASK
622 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
623 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
624 
625 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
626 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
627 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
628 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
629 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
630 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
631 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
632 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
633 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
634 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
635 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
636 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
637 }
638 
639 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
640 {
641 	uint32_t reg_data = 0;
642 
643 	/* disable JPEG CGC */
644 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
645 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
646 	else
647 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
648 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
649 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
650 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
651 
652 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
653 
654 	/* enable sw clock gating control */
655 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
656 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
657 	else
658 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
659 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
660 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
661 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
662 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
663 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
664 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
665 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
666 		 UVD_CGC_CTRL__SYS_MODE_MASK |
667 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
668 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
669 		 UVD_CGC_CTRL__REGS_MODE_MASK |
670 		 UVD_CGC_CTRL__RBC_MODE_MASK |
671 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
672 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
673 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
674 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
675 		 UVD_CGC_CTRL__MPC_MODE_MASK |
676 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
677 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
678 		 UVD_CGC_CTRL__WCB_MODE_MASK |
679 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
680 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
681 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
682 
683 	/* turn off clock gating */
684 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
685 
686 	/* turn on SUVD clock gating */
687 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
688 
689 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
690 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
691 }
692 
693 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
694 {
695 	uint32_t data = 0;
696 
697 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
698 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
699 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
700 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
701 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
702 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
703 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
704 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
705 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
706 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
707 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
708 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
709 
710 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
711 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF);
712 	} else {
713 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
714 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
715 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
716 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
717 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
718 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
719 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
720 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
721 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
722 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
723 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
724 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
725 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF);
726 	}
727 
728 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
729 
730 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
731 	data &= ~0x103;
732 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
733 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
734 
735 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
736 }
737 
738 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
739 {
740 	uint32_t data = 0;
741 
742 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
743 		/* Before power off, this indicator has to be turned on */
744 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
745 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
746 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
747 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
748 
749 
750 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
751 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
752 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
753 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
754 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
755 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
756 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
757 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
758 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
759 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
760 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
761 
762 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
763 
764 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
765 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
766 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
767 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
768 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
769 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
770 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
771 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
772 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
773 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
774 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
775 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF);
776 	}
777 }
778 
779 /**
780  * vcn_v1_0_start_spg_mode - start VCN block
781  *
782  * @adev: amdgpu_device pointer
783  *
784  * Setup and start the VCN block
785  */
786 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
787 {
788 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
789 	uint32_t rb_bufsz, tmp;
790 	uint32_t lmi_swap_cntl;
791 	int i, j, r;
792 
793 	/* disable byte swapping */
794 	lmi_swap_cntl = 0;
795 
796 	vcn_1_0_disable_static_power_gating(adev);
797 
798 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
799 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
800 
801 	/* disable clock gating */
802 	vcn_v1_0_disable_clock_gating(adev);
803 
804 	/* disable interupt */
805 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
806 			~UVD_MASTINT_EN__VCPU_EN_MASK);
807 
808 	/* initialize VCN memory controller */
809 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
810 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
811 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
812 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
813 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
814 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
815 
816 #ifdef __BIG_ENDIAN
817 	/* swap (8 in 32) RB and IB */
818 	lmi_swap_cntl = 0xa;
819 #endif
820 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
821 
822 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
823 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
824 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
825 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
826 
827 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
828 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
829 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
830 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
831 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
832 
833 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
834 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
835 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
836 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
837 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
838 
839 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
840 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
841 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
842 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
843 
844 	vcn_v1_0_mc_resume_spg_mode(adev);
845 
846 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
847 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
848 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
849 
850 	/* enable VCPU clock */
851 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
852 
853 	/* boot up the VCPU */
854 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
855 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
856 
857 	/* enable UMC */
858 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
859 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
860 
861 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
862 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
863 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
864 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
865 
866 	for (i = 0; i < 10; ++i) {
867 		uint32_t status;
868 
869 		for (j = 0; j < 100; ++j) {
870 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
871 			if (status & UVD_STATUS__IDLE)
872 				break;
873 			mdelay(10);
874 		}
875 		r = 0;
876 		if (status & UVD_STATUS__IDLE)
877 			break;
878 
879 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
880 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
881 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
882 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
883 		mdelay(10);
884 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
885 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
886 		mdelay(10);
887 		r = -1;
888 	}
889 
890 	if (r) {
891 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
892 		return r;
893 	}
894 	/* enable master interrupt */
895 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
896 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
897 
898 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
899 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
900 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
901 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
902 
903 	/* clear the busy bit of UVD_STATUS */
904 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
905 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
906 
907 	/* force RBC into idle state */
908 	rb_bufsz = order_base_2(ring->ring_size);
909 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
910 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
911 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
912 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
913 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
914 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
915 
916 	/* set the write pointer delay */
917 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
918 
919 	/* set the wb address */
920 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
921 			(upper_32_bits(ring->gpu_addr) >> 2));
922 
923 	/* program the RB_BASE for ring buffer */
924 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
925 			lower_32_bits(ring->gpu_addr));
926 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
927 			upper_32_bits(ring->gpu_addr));
928 
929 	/* Initialize the ring buffer's read and write pointers */
930 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
931 
932 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
933 
934 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
935 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
936 			lower_32_bits(ring->wptr));
937 
938 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
939 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
940 
941 	ring = &adev->vcn.inst->ring_enc[0];
942 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
943 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
944 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
945 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
946 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
947 
948 	ring = &adev->vcn.inst->ring_enc[1];
949 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
950 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
951 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
952 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
953 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
954 
955 	jpeg_v1_0_start(adev, 0);
956 
957 	return 0;
958 }
959 
960 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
961 {
962 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
963 	uint32_t rb_bufsz, tmp;
964 	uint32_t lmi_swap_cntl;
965 
966 	/* disable byte swapping */
967 	lmi_swap_cntl = 0;
968 
969 	vcn_1_0_enable_static_power_gating(adev);
970 
971 	/* enable dynamic power gating mode */
972 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
973 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
974 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
975 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
976 
977 	/* enable clock gating */
978 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
979 
980 	/* enable VCPU clock */
981 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
982 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
983 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
984 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
985 
986 	/* disable interupt */
987 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
988 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
989 
990 	/* initialize VCN memory controller */
991 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
992 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
993 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
994 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
995 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
996 		UVD_LMI_CTRL__REQ_MODE_MASK |
997 		UVD_LMI_CTRL__CRC_RESET_MASK |
998 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
999 		0x00100000L, 0xFFFFFFFF, 0);
1000 
1001 #ifdef __BIG_ENDIAN
1002 	/* swap (8 in 32) RB and IB */
1003 	lmi_swap_cntl = 0xa;
1004 #endif
1005 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
1006 
1007 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_CNTL,
1008 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
1009 
1010 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXA0,
1011 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
1012 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
1013 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
1014 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1015 
1016 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXB0,
1017 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1018 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1019 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1020 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1021 
1022 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUX,
1023 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1024 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1025 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1026 
1027 	vcn_v1_0_mc_resume_dpg_mode(adev);
1028 
1029 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1030 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1031 
1032 	/* boot up the VCPU */
1033 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1034 
1035 	/* enable UMC */
1036 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL2,
1037 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1038 		0xFFFFFFFF, 0);
1039 
1040 	/* enable master interrupt */
1041 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
1042 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1043 
1044 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1045 	/* setup mmUVD_LMI_CTRL */
1046 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
1047 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1048 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1049 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1050 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1051 		UVD_LMI_CTRL__REQ_MODE_MASK |
1052 		UVD_LMI_CTRL__CRC_RESET_MASK |
1053 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1054 		0x00100000L, 0xFFFFFFFF, 1);
1055 
1056 	tmp = adev->gfx.config.gb_addr_config;
1057 	/* setup VCN global tiling registers */
1058 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1059 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1060 
1061 	/* enable System Interrupt for JRBC */
1062 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SYS_INT_EN,
1063 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1064 
1065 	/* force RBC into idle state */
1066 	rb_bufsz = order_base_2(ring->ring_size);
1067 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1068 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1069 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1070 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1071 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1072 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1073 
1074 	/* set the write pointer delay */
1075 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1076 
1077 	/* set the wb address */
1078 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1079 								(upper_32_bits(ring->gpu_addr) >> 2));
1080 
1081 	/* program the RB_BASE for ring buffer */
1082 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1083 								lower_32_bits(ring->gpu_addr));
1084 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1085 								upper_32_bits(ring->gpu_addr));
1086 
1087 	/* Initialize the ring buffer's read and write pointers */
1088 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1089 
1090 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1091 
1092 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1093 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1094 								lower_32_bits(ring->wptr));
1095 
1096 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1097 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1098 
1099 	jpeg_v1_0_start(adev, 1);
1100 
1101 	return 0;
1102 }
1103 
1104 static int vcn_v1_0_start(struct amdgpu_device *adev)
1105 {
1106 	return (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ?
1107 		vcn_v1_0_start_dpg_mode(adev) : vcn_v1_0_start_spg_mode(adev);
1108 }
1109 
1110 /**
1111  * vcn_v1_0_stop_spg_mode - stop VCN block
1112  *
1113  * @adev: amdgpu_device pointer
1114  *
1115  * stop the VCN block
1116  */
1117 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1118 {
1119 	int tmp;
1120 
1121 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7);
1122 
1123 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1124 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1125 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1126 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1127 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1128 
1129 	/* stall UMC channel */
1130 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
1131 		UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
1132 		~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
1133 
1134 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1135 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1136 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1137 
1138 	/* disable VCPU clock */
1139 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1140 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1141 
1142 	/* reset LMI UMC/LMI */
1143 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1144 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1145 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1146 
1147 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1148 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1149 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1150 
1151 	/* put VCPU into reset */
1152 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1153 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1154 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1155 
1156 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1157 
1158 	vcn_v1_0_enable_clock_gating(adev);
1159 	vcn_1_0_enable_static_power_gating(adev);
1160 	return 0;
1161 }
1162 
1163 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1164 {
1165 	uint32_t tmp;
1166 
1167 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1168 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1169 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1170 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1171 
1172 	/* wait for read ptr to be equal to write ptr */
1173 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1174 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF);
1175 
1176 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1177 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
1178 
1179 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1180 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF);
1181 
1182 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1183 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF);
1184 
1185 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1186 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1187 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1188 
1189 	/* disable dynamic power gating mode */
1190 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1191 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1192 
1193 	return 0;
1194 }
1195 
1196 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1197 {
1198 	int r;
1199 
1200 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1201 		r = vcn_v1_0_stop_dpg_mode(adev);
1202 	else
1203 		r = vcn_v1_0_stop_spg_mode(adev);
1204 
1205 	return r;
1206 }
1207 
1208 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1209 				int inst_idx, struct dpg_pause_state *new_state)
1210 {
1211 	int ret_code;
1212 	uint32_t reg_data = 0;
1213 	uint32_t reg_data2 = 0;
1214 	struct amdgpu_ring *ring;
1215 
1216 	/* pause/unpause if state is changed */
1217 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1218 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1219 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1220 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1221 			new_state->fw_based, new_state->jpeg);
1222 
1223 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1224 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1225 
1226 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1227 			ret_code = 0;
1228 
1229 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1230 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1231 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1232 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1233 
1234 			if (!ret_code) {
1235 				/* pause DPG non-jpeg */
1236 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1237 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1238 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1239 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1240 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1241 
1242 				/* Restore */
1243 				ring = &adev->vcn.inst->ring_enc[0];
1244 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1245 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1246 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1247 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1248 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1249 
1250 				ring = &adev->vcn.inst->ring_enc[1];
1251 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1252 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1253 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1254 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1255 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1256 
1257 				ring = &adev->vcn.inst->ring_dec;
1258 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1259 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1260 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1261 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1262 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1263 			}
1264 		} else {
1265 			/* unpause dpg non-jpeg, no need to wait */
1266 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1267 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1268 		}
1269 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1270 	}
1271 
1272 	/* pause/unpause if state is changed */
1273 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1274 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1275 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1276 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1277 			new_state->fw_based, new_state->jpeg);
1278 
1279 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1280 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1281 
1282 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1283 			ret_code = 0;
1284 
1285 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1286 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1287 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1288 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1289 
1290 			if (!ret_code) {
1291 				/* Make sure JPRG Snoop is disabled before sending the pause */
1292 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1293 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1294 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1295 
1296 				/* pause DPG jpeg */
1297 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1298 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1299 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1300 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1301 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1302 
1303 				/* Restore */
1304 				ring = &adev->jpeg.inst->ring_dec;
1305 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1306 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1307 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1308 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1309 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1310 							lower_32_bits(ring->gpu_addr));
1311 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1312 							upper_32_bits(ring->gpu_addr));
1313 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1314 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1315 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1316 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1317 
1318 				ring = &adev->vcn.inst->ring_dec;
1319 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1320 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1321 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1322 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1323 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1324 			}
1325 		} else {
1326 			/* unpause dpg jpeg, no need to wait */
1327 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1328 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1329 		}
1330 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1331 	}
1332 
1333 	return 0;
1334 }
1335 
1336 static bool vcn_v1_0_is_idle(void *handle)
1337 {
1338 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1339 
1340 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1341 }
1342 
1343 static int vcn_v1_0_wait_for_idle(void *handle)
1344 {
1345 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1346 	int ret;
1347 
1348 	ret = SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1349 		UVD_STATUS__IDLE);
1350 
1351 	return ret;
1352 }
1353 
1354 static int vcn_v1_0_set_clockgating_state(void *handle,
1355 					  enum amd_clockgating_state state)
1356 {
1357 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1358 	bool enable = (state == AMD_CG_STATE_GATE);
1359 
1360 	if (enable) {
1361 		/* wait for STATUS to clear */
1362 		if (!vcn_v1_0_is_idle(handle))
1363 			return -EBUSY;
1364 		vcn_v1_0_enable_clock_gating(adev);
1365 	} else {
1366 		/* disable HW gating and enable Sw gating */
1367 		vcn_v1_0_disable_clock_gating(adev);
1368 	}
1369 	return 0;
1370 }
1371 
1372 /**
1373  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1374  *
1375  * @ring: amdgpu_ring pointer
1376  *
1377  * Returns the current hardware read pointer
1378  */
1379 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1380 {
1381 	struct amdgpu_device *adev = ring->adev;
1382 
1383 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1384 }
1385 
1386 /**
1387  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1388  *
1389  * @ring: amdgpu_ring pointer
1390  *
1391  * Returns the current hardware write pointer
1392  */
1393 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1394 {
1395 	struct amdgpu_device *adev = ring->adev;
1396 
1397 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1398 }
1399 
1400 /**
1401  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1402  *
1403  * @ring: amdgpu_ring pointer
1404  *
1405  * Commits the write pointer to the hardware
1406  */
1407 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1408 {
1409 	struct amdgpu_device *adev = ring->adev;
1410 
1411 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1412 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1413 			lower_32_bits(ring->wptr) | 0x80000000);
1414 
1415 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1416 }
1417 
1418 /**
1419  * vcn_v1_0_dec_ring_insert_start - insert a start command
1420  *
1421  * @ring: amdgpu_ring pointer
1422  *
1423  * Write a start command to the ring.
1424  */
1425 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1426 {
1427 	struct amdgpu_device *adev = ring->adev;
1428 
1429 	amdgpu_ring_write(ring,
1430 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1431 	amdgpu_ring_write(ring, 0);
1432 	amdgpu_ring_write(ring,
1433 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1434 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1435 }
1436 
1437 /**
1438  * vcn_v1_0_dec_ring_insert_end - insert a end command
1439  *
1440  * @ring: amdgpu_ring pointer
1441  *
1442  * Write a end command to the ring.
1443  */
1444 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1445 {
1446 	struct amdgpu_device *adev = ring->adev;
1447 
1448 	amdgpu_ring_write(ring,
1449 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1450 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1451 }
1452 
1453 /**
1454  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1455  *
1456  * @ring: amdgpu_ring pointer
1457  * @addr: address
1458  * @seq: sequence number
1459  * @flags: fence related flags
1460  *
1461  * Write a fence and a trap command to the ring.
1462  */
1463 static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
1464 				     unsigned flags)
1465 {
1466 	struct amdgpu_device *adev = ring->adev;
1467 
1468 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1469 
1470 	amdgpu_ring_write(ring,
1471 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
1472 	amdgpu_ring_write(ring, seq);
1473 	amdgpu_ring_write(ring,
1474 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1475 	amdgpu_ring_write(ring, addr & 0xffffffff);
1476 	amdgpu_ring_write(ring,
1477 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1478 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
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_FENCE << 1);
1482 
1483 	amdgpu_ring_write(ring,
1484 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1485 	amdgpu_ring_write(ring, 0);
1486 	amdgpu_ring_write(ring,
1487 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1488 	amdgpu_ring_write(ring, 0);
1489 	amdgpu_ring_write(ring,
1490 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1491 	amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
1492 }
1493 
1494 /**
1495  * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
1496  *
1497  * @ring: amdgpu_ring pointer
1498  * @job: job to retrieve vmid from
1499  * @ib: indirect buffer to execute
1500  * @flags: unused
1501  *
1502  * Write ring commands to execute the indirect buffer
1503  */
1504 static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
1505 					struct amdgpu_job *job,
1506 					struct amdgpu_ib *ib,
1507 					uint32_t flags)
1508 {
1509 	struct amdgpu_device *adev = ring->adev;
1510 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1511 
1512 	amdgpu_ring_write(ring,
1513 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
1514 	amdgpu_ring_write(ring, vmid);
1515 
1516 	amdgpu_ring_write(ring,
1517 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
1518 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1519 	amdgpu_ring_write(ring,
1520 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
1521 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1522 	amdgpu_ring_write(ring,
1523 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
1524 	amdgpu_ring_write(ring, ib->length_dw);
1525 }
1526 
1527 static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
1528 					    uint32_t reg, uint32_t val,
1529 					    uint32_t mask)
1530 {
1531 	struct amdgpu_device *adev = ring->adev;
1532 
1533 	amdgpu_ring_write(ring,
1534 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1535 	amdgpu_ring_write(ring, reg << 2);
1536 	amdgpu_ring_write(ring,
1537 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1538 	amdgpu_ring_write(ring, val);
1539 	amdgpu_ring_write(ring,
1540 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
1541 	amdgpu_ring_write(ring, mask);
1542 	amdgpu_ring_write(ring,
1543 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1544 	amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
1545 }
1546 
1547 static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
1548 					    unsigned vmid, uint64_t pd_addr)
1549 {
1550 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1551 	uint32_t data0, data1, mask;
1552 
1553 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1554 
1555 	/* wait for register write */
1556 	data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
1557 	data1 = lower_32_bits(pd_addr);
1558 	mask = 0xffffffff;
1559 	vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
1560 }
1561 
1562 static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
1563 					uint32_t reg, uint32_t val)
1564 {
1565 	struct amdgpu_device *adev = ring->adev;
1566 
1567 	amdgpu_ring_write(ring,
1568 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1569 	amdgpu_ring_write(ring, reg << 2);
1570 	amdgpu_ring_write(ring,
1571 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1572 	amdgpu_ring_write(ring, val);
1573 	amdgpu_ring_write(ring,
1574 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1575 	amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
1576 }
1577 
1578 /**
1579  * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
1580  *
1581  * @ring: amdgpu_ring pointer
1582  *
1583  * Returns the current hardware enc read pointer
1584  */
1585 static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
1586 {
1587 	struct amdgpu_device *adev = ring->adev;
1588 
1589 	if (ring == &adev->vcn.inst->ring_enc[0])
1590 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
1591 	else
1592 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
1593 }
1594 
1595  /**
1596  * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
1597  *
1598  * @ring: amdgpu_ring pointer
1599  *
1600  * Returns the current hardware enc write pointer
1601  */
1602 static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
1603 {
1604 	struct amdgpu_device *adev = ring->adev;
1605 
1606 	if (ring == &adev->vcn.inst->ring_enc[0])
1607 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1608 	else
1609 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1610 }
1611 
1612  /**
1613  * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
1614  *
1615  * @ring: amdgpu_ring pointer
1616  *
1617  * Commits the enc write pointer to the hardware
1618  */
1619 static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
1620 {
1621 	struct amdgpu_device *adev = ring->adev;
1622 
1623 	if (ring == &adev->vcn.inst->ring_enc[0])
1624 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
1625 			lower_32_bits(ring->wptr));
1626 	else
1627 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
1628 			lower_32_bits(ring->wptr));
1629 }
1630 
1631 /**
1632  * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
1633  *
1634  * @ring: amdgpu_ring pointer
1635  * @addr: address
1636  * @seq: sequence number
1637  * @flags: fence related flags
1638  *
1639  * Write enc a fence and a trap command to the ring.
1640  */
1641 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1642 			u64 seq, unsigned flags)
1643 {
1644 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1645 
1646 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1647 	amdgpu_ring_write(ring, addr);
1648 	amdgpu_ring_write(ring, upper_32_bits(addr));
1649 	amdgpu_ring_write(ring, seq);
1650 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1651 }
1652 
1653 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1654 {
1655 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1656 }
1657 
1658 /**
1659  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1660  *
1661  * @ring: amdgpu_ring pointer
1662  * @job: job to retrive vmid from
1663  * @ib: indirect buffer to execute
1664  * @flags: unused
1665  *
1666  * Write enc ring commands to execute the indirect buffer
1667  */
1668 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1669 					struct amdgpu_job *job,
1670 					struct amdgpu_ib *ib,
1671 					uint32_t flags)
1672 {
1673 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1674 
1675 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1676 	amdgpu_ring_write(ring, vmid);
1677 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1678 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1679 	amdgpu_ring_write(ring, ib->length_dw);
1680 }
1681 
1682 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1683 					    uint32_t reg, uint32_t val,
1684 					    uint32_t mask)
1685 {
1686 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1687 	amdgpu_ring_write(ring, reg << 2);
1688 	amdgpu_ring_write(ring, mask);
1689 	amdgpu_ring_write(ring, val);
1690 }
1691 
1692 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1693 					    unsigned int vmid, uint64_t pd_addr)
1694 {
1695 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1696 
1697 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1698 
1699 	/* wait for reg writes */
1700 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
1701 					vmid * hub->ctx_addr_distance,
1702 					lower_32_bits(pd_addr), 0xffffffff);
1703 }
1704 
1705 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1706 					uint32_t reg, uint32_t val)
1707 {
1708 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1709 	amdgpu_ring_write(ring,	reg << 2);
1710 	amdgpu_ring_write(ring, val);
1711 }
1712 
1713 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1714 					struct amdgpu_irq_src *source,
1715 					unsigned type,
1716 					enum amdgpu_interrupt_state state)
1717 {
1718 	return 0;
1719 }
1720 
1721 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1722 				      struct amdgpu_irq_src *source,
1723 				      struct amdgpu_iv_entry *entry)
1724 {
1725 	DRM_DEBUG("IH: VCN TRAP\n");
1726 
1727 	switch (entry->src_id) {
1728 	case 124:
1729 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1730 		break;
1731 	case 119:
1732 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1733 		break;
1734 	case 120:
1735 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1736 		break;
1737 	default:
1738 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1739 			  entry->src_id, entry->src_data[0]);
1740 		break;
1741 	}
1742 
1743 	return 0;
1744 }
1745 
1746 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1747 {
1748 	struct amdgpu_device *adev = ring->adev;
1749 	int i;
1750 
1751 	WARN_ON(ring->wptr % 2 || count % 2);
1752 
1753 	for (i = 0; i < count / 2; i++) {
1754 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1755 		amdgpu_ring_write(ring, 0);
1756 	}
1757 }
1758 
1759 static int vcn_v1_0_set_powergating_state(void *handle,
1760 					  enum amd_powergating_state state)
1761 {
1762 	/* This doesn't actually powergate the VCN block.
1763 	 * That's done in the dpm code via the SMC.  This
1764 	 * just re-inits the block as necessary.  The actual
1765 	 * gating still happens in the dpm code.  We should
1766 	 * revisit this when there is a cleaner line between
1767 	 * the smc and the hw blocks
1768 	 */
1769 	int ret;
1770 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1771 
1772 	if(state == adev->vcn.cur_state)
1773 		return 0;
1774 
1775 	if (state == AMD_PG_STATE_GATE)
1776 		ret = vcn_v1_0_stop(adev);
1777 	else
1778 		ret = vcn_v1_0_start(adev);
1779 
1780 	if(!ret)
1781 		adev->vcn.cur_state = state;
1782 	return ret;
1783 }
1784 
1785 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1786 {
1787 	struct amdgpu_device *adev =
1788 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1789 	unsigned int fences = 0, i;
1790 
1791 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1792 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1793 
1794 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1795 		struct dpg_pause_state new_state;
1796 
1797 		if (fences)
1798 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1799 		else
1800 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1801 
1802 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1803 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1804 		else
1805 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1806 
1807 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1808 	}
1809 
1810 	fences += amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec);
1811 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1812 
1813 	if (fences == 0) {
1814 		amdgpu_gfx_off_ctrl(adev, true);
1815 		if (adev->pm.dpm_enabled)
1816 			amdgpu_dpm_enable_uvd(adev, false);
1817 		else
1818 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1819 			       AMD_PG_STATE_GATE);
1820 	} else {
1821 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1822 	}
1823 }
1824 
1825 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1826 {
1827 	struct	amdgpu_device *adev = ring->adev;
1828 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1829 
1830 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
1831 
1832 	if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec))
1833 		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
1834 
1835 	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
1836 
1837 }
1838 
1839 void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
1840 {
1841 	struct amdgpu_device *adev = ring->adev;
1842 
1843 	if (set_clocks) {
1844 		amdgpu_gfx_off_ctrl(adev, false);
1845 		if (adev->pm.dpm_enabled)
1846 			amdgpu_dpm_enable_uvd(adev, true);
1847 		else
1848 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1849 			       AMD_PG_STATE_UNGATE);
1850 	}
1851 
1852 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1853 		struct dpg_pause_state new_state;
1854 		unsigned int fences = 0, i;
1855 
1856 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1857 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1858 
1859 		if (fences)
1860 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1861 		else
1862 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1863 
1864 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1865 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1866 		else
1867 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1868 
1869 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1870 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1871 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1872 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1873 
1874 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1875 	}
1876 }
1877 
1878 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
1879 {
1880 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1881 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
1882 }
1883 
1884 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1885 	.name = "vcn_v1_0",
1886 	.early_init = vcn_v1_0_early_init,
1887 	.late_init = NULL,
1888 	.sw_init = vcn_v1_0_sw_init,
1889 	.sw_fini = vcn_v1_0_sw_fini,
1890 	.hw_init = vcn_v1_0_hw_init,
1891 	.hw_fini = vcn_v1_0_hw_fini,
1892 	.suspend = vcn_v1_0_suspend,
1893 	.resume = vcn_v1_0_resume,
1894 	.is_idle = vcn_v1_0_is_idle,
1895 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1896 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1897 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1898 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1899 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1900 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1901 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1902 };
1903 
1904 /*
1905  * It is a hardware issue that VCN can't handle a GTT TMZ buffer on
1906  * CHIP_RAVEN series ASIC. Move such a GTT TMZ buffer to VRAM domain
1907  * before command submission as a workaround.
1908  */
1909 static int vcn_v1_0_validate_bo(struct amdgpu_cs_parser *parser,
1910 				struct amdgpu_job *job,
1911 				uint64_t addr)
1912 {
1913 	struct ttm_operation_ctx ctx = { false, false };
1914 	struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
1915 	struct amdgpu_vm *vm = &fpriv->vm;
1916 	struct amdgpu_bo_va_mapping *mapping;
1917 	struct amdgpu_bo *bo;
1918 	int r;
1919 
1920 	addr &= AMDGPU_GMC_HOLE_MASK;
1921 	if (addr & 0x7) {
1922 		DRM_ERROR("VCN messages must be 8 byte aligned!\n");
1923 		return -EINVAL;
1924 	}
1925 
1926 	mapping = amdgpu_vm_bo_lookup_mapping(vm, addr/AMDGPU_GPU_PAGE_SIZE);
1927 	if (!mapping || !mapping->bo_va || !mapping->bo_va->base.bo)
1928 		return -EINVAL;
1929 
1930 	bo = mapping->bo_va->base.bo;
1931 	if (!(bo->flags & AMDGPU_GEM_CREATE_ENCRYPTED))
1932 		return 0;
1933 
1934 	amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
1935 	r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
1936 	if (r) {
1937 		DRM_ERROR("Failed to validate the VCN message BO (%d)!\n", r);
1938 		return r;
1939 	}
1940 
1941 	return r;
1942 }
1943 
1944 static int vcn_v1_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
1945 					   struct amdgpu_job *job,
1946 					   struct amdgpu_ib *ib)
1947 {
1948 	uint32_t msg_lo = 0, msg_hi = 0;
1949 	int i, r;
1950 
1951 	if (!(ib->flags & AMDGPU_IB_FLAGS_SECURE))
1952 		return 0;
1953 
1954 	for (i = 0; i < ib->length_dw; i += 2) {
1955 		uint32_t reg = amdgpu_ib_get_value(ib, i);
1956 		uint32_t val = amdgpu_ib_get_value(ib, i + 1);
1957 
1958 		if (reg == PACKET0(p->adev->vcn.internal.data0, 0)) {
1959 			msg_lo = val;
1960 		} else if (reg == PACKET0(p->adev->vcn.internal.data1, 0)) {
1961 			msg_hi = val;
1962 		} else if (reg == PACKET0(p->adev->vcn.internal.cmd, 0)) {
1963 			r = vcn_v1_0_validate_bo(p, job,
1964 						 ((u64)msg_hi) << 32 | msg_lo);
1965 			if (r)
1966 				return r;
1967 		}
1968 	}
1969 
1970 	return 0;
1971 }
1972 
1973 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1974 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1975 	.align_mask = 0xf,
1976 	.support_64bit_ptrs = false,
1977 	.no_user_fence = true,
1978 	.secure_submission_supported = true,
1979 	.vmhub = AMDGPU_MMHUB_0,
1980 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1981 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1982 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1983 	.patch_cs_in_place = vcn_v1_0_ring_patch_cs_in_place,
1984 	.emit_frame_size =
1985 		6 + 6 + /* hdp invalidate / flush */
1986 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1987 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1988 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1989 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1990 		6,
1991 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1992 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1993 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1994 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1995 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1996 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1997 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
1998 	.insert_start = vcn_v1_0_dec_ring_insert_start,
1999 	.insert_end = vcn_v1_0_dec_ring_insert_end,
2000 	.pad_ib = amdgpu_ring_generic_pad_ib,
2001 	.begin_use = vcn_v1_0_ring_begin_use,
2002 	.end_use = vcn_v1_0_ring_end_use,
2003 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
2004 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
2005 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
2006 };
2007 
2008 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
2009 	.type = AMDGPU_RING_TYPE_VCN_ENC,
2010 	.align_mask = 0x3f,
2011 	.nop = VCN_ENC_CMD_NO_OP,
2012 	.support_64bit_ptrs = false,
2013 	.no_user_fence = true,
2014 	.vmhub = AMDGPU_MMHUB_0,
2015 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
2016 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
2017 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
2018 	.emit_frame_size =
2019 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
2020 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
2021 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
2022 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
2023 		1, /* vcn_v1_0_enc_ring_insert_end */
2024 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
2025 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
2026 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
2027 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
2028 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
2029 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
2030 	.insert_nop = amdgpu_ring_insert_nop,
2031 	.insert_end = vcn_v1_0_enc_ring_insert_end,
2032 	.pad_ib = amdgpu_ring_generic_pad_ib,
2033 	.begin_use = vcn_v1_0_ring_begin_use,
2034 	.end_use = vcn_v1_0_ring_end_use,
2035 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
2036 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
2037 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
2038 };
2039 
2040 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
2041 {
2042 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
2043 	DRM_INFO("VCN decode is enabled in VM mode\n");
2044 }
2045 
2046 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
2047 {
2048 	int i;
2049 
2050 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
2051 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
2052 
2053 	DRM_INFO("VCN encode is enabled in VM mode\n");
2054 }
2055 
2056 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
2057 	.set = vcn_v1_0_set_interrupt_state,
2058 	.process = vcn_v1_0_process_interrupt,
2059 };
2060 
2061 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
2062 {
2063 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
2064 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
2065 }
2066 
2067 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
2068 {
2069 		.type = AMD_IP_BLOCK_TYPE_VCN,
2070 		.major = 1,
2071 		.minor = 0,
2072 		.rev = 0,
2073 		.funcs = &vcn_v1_0_ip_funcs,
2074 };
2075