xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision 55fd7e02)
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 "hdp/hdp_4_0_offset.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 
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 
57 /**
58  * vcn_v1_0_early_init - set function pointers
59  *
60  * @handle: amdgpu_device pointer
61  *
62  * Set ring and irq function pointers
63  */
64 static int vcn_v1_0_early_init(void *handle)
65 {
66 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
67 
68 	adev->vcn.num_vcn_inst = 1;
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 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
115 		const struct common_firmware_header *hdr;
116 		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
117 		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].ucode_id = AMDGPU_UCODE_ID_VCN;
118 		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].fw = adev->vcn.fw;
119 		adev->firmware.fw_size +=
120 			ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
121 		DRM_INFO("PSP loading VCN firmware\n");
122 	}
123 
124 	r = amdgpu_vcn_resume(adev);
125 	if (r)
126 		return r;
127 
128 	ring = &adev->vcn.inst->ring_dec;
129 	sprintf(ring->name, "vcn_dec");
130 	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
131 			     AMDGPU_RING_PRIO_DEFAULT);
132 	if (r)
133 		return r;
134 
135 	adev->vcn.internal.scratch9 = adev->vcn.inst->external.scratch9 =
136 		SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
137 	adev->vcn.internal.data0 = adev->vcn.inst->external.data0 =
138 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
139 	adev->vcn.internal.data1 = adev->vcn.inst->external.data1 =
140 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
141 	adev->vcn.internal.cmd = adev->vcn.inst->external.cmd =
142 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
143 	adev->vcn.internal.nop = adev->vcn.inst->external.nop =
144 		SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
145 
146 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
147 		ring = &adev->vcn.inst->ring_enc[i];
148 		sprintf(ring->name, "vcn_enc%d", i);
149 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
150 				     AMDGPU_RING_PRIO_DEFAULT);
151 		if (r)
152 			return r;
153 	}
154 
155 	adev->vcn.pause_dpg_mode = vcn_v1_0_pause_dpg_mode;
156 
157 	r = jpeg_v1_0_sw_init(handle);
158 
159 	return r;
160 }
161 
162 /**
163  * vcn_v1_0_sw_fini - sw fini for VCN block
164  *
165  * @handle: amdgpu_device pointer
166  *
167  * VCN suspend and free up sw allocation
168  */
169 static int vcn_v1_0_sw_fini(void *handle)
170 {
171 	int r;
172 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
173 
174 	r = amdgpu_vcn_suspend(adev);
175 	if (r)
176 		return r;
177 
178 	jpeg_v1_0_sw_fini(handle);
179 
180 	r = amdgpu_vcn_sw_fini(adev);
181 
182 	return r;
183 }
184 
185 /**
186  * vcn_v1_0_hw_init - start and test VCN block
187  *
188  * @handle: amdgpu_device pointer
189  *
190  * Initialize the hardware, boot up the VCPU and do some testing
191  */
192 static int vcn_v1_0_hw_init(void *handle)
193 {
194 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
195 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
196 	int i, r;
197 
198 	r = amdgpu_ring_test_helper(ring);
199 	if (r)
200 		goto done;
201 
202 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
203 		ring = &adev->vcn.inst->ring_enc[i];
204 		r = amdgpu_ring_test_helper(ring);
205 		if (r)
206 			goto done;
207 	}
208 
209 	ring = &adev->jpeg.inst->ring_dec;
210 	r = amdgpu_ring_test_helper(ring);
211 	if (r)
212 		goto done;
213 
214 done:
215 	if (!r)
216 		DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
217 			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
218 
219 	return r;
220 }
221 
222 /**
223  * vcn_v1_0_hw_fini - stop the hardware block
224  *
225  * @handle: amdgpu_device pointer
226  *
227  * Stop the VCN block, mark ring as not ready any more
228  */
229 static int vcn_v1_0_hw_fini(void *handle)
230 {
231 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
232 
233 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
234 		RREG32_SOC15(VCN, 0, mmUVD_STATUS))
235 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
236 
237 	return 0;
238 }
239 
240 /**
241  * vcn_v1_0_suspend - suspend VCN block
242  *
243  * @handle: amdgpu_device pointer
244  *
245  * HW fini and suspend VCN block
246  */
247 static int vcn_v1_0_suspend(void *handle)
248 {
249 	int r;
250 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
251 
252 	r = vcn_v1_0_hw_fini(adev);
253 	if (r)
254 		return r;
255 
256 	r = amdgpu_vcn_suspend(adev);
257 
258 	return r;
259 }
260 
261 /**
262  * vcn_v1_0_resume - resume VCN block
263  *
264  * @handle: amdgpu_device pointer
265  *
266  * Resume firmware and hw init VCN block
267  */
268 static int vcn_v1_0_resume(void *handle)
269 {
270 	int r;
271 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
272 
273 	r = amdgpu_vcn_resume(adev);
274 	if (r)
275 		return r;
276 
277 	r = vcn_v1_0_hw_init(adev);
278 
279 	return r;
280 }
281 
282 /**
283  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
284  *
285  * @adev: amdgpu_device pointer
286  *
287  * Let the VCN memory controller know it's offsets
288  */
289 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
290 {
291 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
292 	uint32_t offset;
293 
294 	/* cache window 0: fw */
295 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
296 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
297 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
298 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
299 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
300 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
301 		offset = 0;
302 	} else {
303 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
304 			lower_32_bits(adev->vcn.inst->gpu_addr));
305 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
306 			upper_32_bits(adev->vcn.inst->gpu_addr));
307 		offset = size;
308 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
309 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
310 	}
311 
312 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
313 
314 	/* cache window 1: stack */
315 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
316 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
317 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
318 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
319 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
320 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
321 
322 	/* cache window 2: context */
323 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
324 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
325 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
326 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
327 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
328 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
329 
330 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
331 			adev->gfx.config.gb_addr_config);
332 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
333 			adev->gfx.config.gb_addr_config);
334 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
335 			adev->gfx.config.gb_addr_config);
336 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
337 			adev->gfx.config.gb_addr_config);
338 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
339 			adev->gfx.config.gb_addr_config);
340 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
341 			adev->gfx.config.gb_addr_config);
342 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
343 			adev->gfx.config.gb_addr_config);
344 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
345 			adev->gfx.config.gb_addr_config);
346 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
347 			adev->gfx.config.gb_addr_config);
348 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
349 			adev->gfx.config.gb_addr_config);
350 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
351 			adev->gfx.config.gb_addr_config);
352 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
353 			adev->gfx.config.gb_addr_config);
354 }
355 
356 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
357 {
358 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
359 	uint32_t offset;
360 
361 	/* cache window 0: fw */
362 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
363 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
364 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
365 			     0xFFFFFFFF, 0);
366 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
367 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
368 			     0xFFFFFFFF, 0);
369 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
370 			     0xFFFFFFFF, 0);
371 		offset = 0;
372 	} else {
373 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
374 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
375 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
376 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
377 		offset = size;
378 		WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
379 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
380 	}
381 
382 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
383 
384 	/* cache window 1: stack */
385 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
386 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
387 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
388 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
389 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
390 			     0xFFFFFFFF, 0);
391 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
392 			     0xFFFFFFFF, 0);
393 
394 	/* cache window 2: context */
395 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
396 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
397 			     0xFFFFFFFF, 0);
398 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
399 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
400 			     0xFFFFFFFF, 0);
401 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
402 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
403 			     0xFFFFFFFF, 0);
404 
405 	/* VCN global tiling registers */
406 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
407 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
408 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
409 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
410 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
411 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
412 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
413 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
414 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
415 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
416 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
417 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
418 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
419 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
420 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
421 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
422 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
423 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
424 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
425 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
426 }
427 
428 /**
429  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
430  *
431  * @adev: amdgpu_device pointer
432  * @sw: enable SW clock gating
433  *
434  * Disable clock gating for VCN block
435  */
436 static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
437 {
438 	uint32_t data;
439 
440 	/* JPEG disable CGC */
441 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
442 
443 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
444 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
445 	else
446 		data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
447 
448 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
449 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
450 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
451 
452 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
453 	data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
454 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
455 
456 	/* UVD disable CGC */
457 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
458 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
459 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
460 	else
461 		data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
462 
463 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
464 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
465 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
466 
467 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
468 	data &= ~(UVD_CGC_GATE__SYS_MASK
469 		| UVD_CGC_GATE__UDEC_MASK
470 		| UVD_CGC_GATE__MPEG2_MASK
471 		| UVD_CGC_GATE__REGS_MASK
472 		| UVD_CGC_GATE__RBC_MASK
473 		| UVD_CGC_GATE__LMI_MC_MASK
474 		| UVD_CGC_GATE__LMI_UMC_MASK
475 		| UVD_CGC_GATE__IDCT_MASK
476 		| UVD_CGC_GATE__MPRD_MASK
477 		| UVD_CGC_GATE__MPC_MASK
478 		| UVD_CGC_GATE__LBSI_MASK
479 		| UVD_CGC_GATE__LRBBM_MASK
480 		| UVD_CGC_GATE__UDEC_RE_MASK
481 		| UVD_CGC_GATE__UDEC_CM_MASK
482 		| UVD_CGC_GATE__UDEC_IT_MASK
483 		| UVD_CGC_GATE__UDEC_DB_MASK
484 		| UVD_CGC_GATE__UDEC_MP_MASK
485 		| UVD_CGC_GATE__WCB_MASK
486 		| UVD_CGC_GATE__VCPU_MASK
487 		| UVD_CGC_GATE__SCPU_MASK);
488 	WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);
489 
490 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
491 	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
492 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
493 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
494 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
495 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
496 		| UVD_CGC_CTRL__SYS_MODE_MASK
497 		| UVD_CGC_CTRL__UDEC_MODE_MASK
498 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
499 		| UVD_CGC_CTRL__REGS_MODE_MASK
500 		| UVD_CGC_CTRL__RBC_MODE_MASK
501 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
502 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
503 		| UVD_CGC_CTRL__IDCT_MODE_MASK
504 		| UVD_CGC_CTRL__MPRD_MODE_MASK
505 		| UVD_CGC_CTRL__MPC_MODE_MASK
506 		| UVD_CGC_CTRL__LBSI_MODE_MASK
507 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
508 		| UVD_CGC_CTRL__WCB_MODE_MASK
509 		| UVD_CGC_CTRL__VCPU_MODE_MASK
510 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
511 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
512 
513 	/* turn on */
514 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
515 	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
516 		| UVD_SUVD_CGC_GATE__SIT_MASK
517 		| UVD_SUVD_CGC_GATE__SMP_MASK
518 		| UVD_SUVD_CGC_GATE__SCM_MASK
519 		| UVD_SUVD_CGC_GATE__SDB_MASK
520 		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
521 		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
522 		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
523 		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
524 		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
525 		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
526 		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
527 		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
528 		| UVD_SUVD_CGC_GATE__SCLR_MASK
529 		| UVD_SUVD_CGC_GATE__UVD_SC_MASK
530 		| UVD_SUVD_CGC_GATE__ENT_MASK
531 		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
532 		| UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
533 		| UVD_SUVD_CGC_GATE__SITE_MASK
534 		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
535 		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
536 		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
537 		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
538 		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
539 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);
540 
541 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
542 	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
543 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
544 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
545 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
546 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
547 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
548 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
549 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
550 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
551 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
552 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
553 }
554 
555 /**
556  * vcn_v1_0_enable_clock_gating - enable VCN clock gating
557  *
558  * @adev: amdgpu_device pointer
559  * @sw: enable SW clock gating
560  *
561  * Enable clock gating for VCN block
562  */
563 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
564 {
565 	uint32_t data = 0;
566 
567 	/* enable JPEG CGC */
568 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
569 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
570 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
571 	else
572 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
573 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
574 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
575 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
576 
577 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
578 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
579 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
580 
581 	/* enable UVD CGC */
582 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
583 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
584 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
585 	else
586 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
587 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
588 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
589 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
590 
591 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
592 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
593 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
594 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
595 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
596 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
597 		| UVD_CGC_CTRL__SYS_MODE_MASK
598 		| UVD_CGC_CTRL__UDEC_MODE_MASK
599 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
600 		| UVD_CGC_CTRL__REGS_MODE_MASK
601 		| UVD_CGC_CTRL__RBC_MODE_MASK
602 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
603 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
604 		| UVD_CGC_CTRL__IDCT_MODE_MASK
605 		| UVD_CGC_CTRL__MPRD_MODE_MASK
606 		| UVD_CGC_CTRL__MPC_MODE_MASK
607 		| UVD_CGC_CTRL__LBSI_MODE_MASK
608 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
609 		| UVD_CGC_CTRL__WCB_MODE_MASK
610 		| UVD_CGC_CTRL__VCPU_MODE_MASK
611 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
612 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
613 
614 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
615 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
616 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
617 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
618 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
619 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
620 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
621 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
622 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
623 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
624 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
625 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
626 }
627 
628 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
629 {
630 	uint32_t reg_data = 0;
631 
632 	/* disable JPEG CGC */
633 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
634 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
635 	else
636 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
637 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
638 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
639 	WREG32_SOC15_DPG_MODE(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
640 
641 	WREG32_SOC15_DPG_MODE(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
642 
643 	/* enable sw clock gating control */
644 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
645 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
646 	else
647 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
648 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
649 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
650 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
651 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
652 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
653 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
654 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
655 		 UVD_CGC_CTRL__SYS_MODE_MASK |
656 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
657 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
658 		 UVD_CGC_CTRL__REGS_MODE_MASK |
659 		 UVD_CGC_CTRL__RBC_MODE_MASK |
660 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
661 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
662 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
663 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
664 		 UVD_CGC_CTRL__MPC_MODE_MASK |
665 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
666 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
667 		 UVD_CGC_CTRL__WCB_MODE_MASK |
668 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
669 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
670 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
671 
672 	/* turn off clock gating */
673 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
674 
675 	/* turn on SUVD clock gating */
676 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
677 
678 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
679 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
680 }
681 
682 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
683 {
684 	uint32_t data = 0;
685 	int ret;
686 
687 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
688 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
689 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
690 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
691 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
692 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
693 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
694 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
695 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
696 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
697 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
698 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
699 
700 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
701 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF, ret);
702 	} else {
703 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
704 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
705 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
706 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
707 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
708 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
709 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
710 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
711 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
712 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
713 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
714 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
715 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF, ret);
716 	}
717 
718 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
719 
720 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
721 	data &= ~0x103;
722 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
723 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
724 
725 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
726 }
727 
728 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
729 {
730 	uint32_t data = 0;
731 	int ret;
732 
733 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
734 		/* Before power off, this indicator has to be turned on */
735 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
736 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
737 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
738 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
739 
740 
741 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
742 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
743 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
744 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
745 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
746 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
747 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
748 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
749 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
750 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
751 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
752 
753 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
754 
755 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
756 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
757 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
758 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
759 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
760 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
761 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
762 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
763 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
764 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
765 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
766 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF, ret);
767 	}
768 }
769 
770 /**
771  * vcn_v1_0_start - start VCN block
772  *
773  * @adev: amdgpu_device pointer
774  *
775  * Setup and start the VCN block
776  */
777 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
778 {
779 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
780 	uint32_t rb_bufsz, tmp;
781 	uint32_t lmi_swap_cntl;
782 	int i, j, r;
783 
784 	/* disable byte swapping */
785 	lmi_swap_cntl = 0;
786 
787 	vcn_1_0_disable_static_power_gating(adev);
788 
789 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
790 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
791 
792 	/* disable clock gating */
793 	vcn_v1_0_disable_clock_gating(adev);
794 
795 	/* disable interupt */
796 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
797 			~UVD_MASTINT_EN__VCPU_EN_MASK);
798 
799 	/* initialize VCN memory controller */
800 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
801 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
802 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
803 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
804 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
805 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
806 
807 #ifdef __BIG_ENDIAN
808 	/* swap (8 in 32) RB and IB */
809 	lmi_swap_cntl = 0xa;
810 #endif
811 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
812 
813 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
814 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
815 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
816 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
817 
818 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
819 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
820 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
821 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
822 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
823 
824 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
825 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
826 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
827 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
828 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
829 
830 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
831 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
832 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
833 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
834 
835 	vcn_v1_0_mc_resume_spg_mode(adev);
836 
837 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
838 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
839 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
840 
841 	/* enable VCPU clock */
842 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
843 
844 	/* boot up the VCPU */
845 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
846 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
847 
848 	/* enable UMC */
849 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
850 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
851 
852 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
853 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
854 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
855 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
856 
857 	for (i = 0; i < 10; ++i) {
858 		uint32_t status;
859 
860 		for (j = 0; j < 100; ++j) {
861 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
862 			if (status & UVD_STATUS__IDLE)
863 				break;
864 			mdelay(10);
865 		}
866 		r = 0;
867 		if (status & UVD_STATUS__IDLE)
868 			break;
869 
870 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
871 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
872 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
873 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
874 		mdelay(10);
875 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
876 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
877 		mdelay(10);
878 		r = -1;
879 	}
880 
881 	if (r) {
882 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
883 		return r;
884 	}
885 	/* enable master interrupt */
886 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
887 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
888 
889 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
890 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
891 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
892 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
893 
894 	/* clear the busy bit of UVD_STATUS */
895 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
896 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
897 
898 	/* force RBC into idle state */
899 	rb_bufsz = order_base_2(ring->ring_size);
900 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
901 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
902 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
903 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
904 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
905 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
906 
907 	/* set the write pointer delay */
908 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
909 
910 	/* set the wb address */
911 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
912 			(upper_32_bits(ring->gpu_addr) >> 2));
913 
914 	/* programm the RB_BASE for ring buffer */
915 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
916 			lower_32_bits(ring->gpu_addr));
917 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
918 			upper_32_bits(ring->gpu_addr));
919 
920 	/* Initialize the ring buffer's read and write pointers */
921 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
922 
923 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
924 
925 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
926 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
927 			lower_32_bits(ring->wptr));
928 
929 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
930 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
931 
932 	ring = &adev->vcn.inst->ring_enc[0];
933 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
934 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
935 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
936 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
937 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
938 
939 	ring = &adev->vcn.inst->ring_enc[1];
940 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
941 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
942 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
943 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
944 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
945 
946 	jpeg_v1_0_start(adev, 0);
947 
948 	return 0;
949 }
950 
951 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
952 {
953 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
954 	uint32_t rb_bufsz, tmp;
955 	uint32_t lmi_swap_cntl;
956 
957 	/* disable byte swapping */
958 	lmi_swap_cntl = 0;
959 
960 	vcn_1_0_enable_static_power_gating(adev);
961 
962 	/* enable dynamic power gating mode */
963 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
964 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
965 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
966 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
967 
968 	/* enable clock gating */
969 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
970 
971 	/* enable VCPU clock */
972 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
973 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
974 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
975 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
976 
977 	/* disable interupt */
978 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
979 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
980 
981 	/* initialize VCN memory controller */
982 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL,
983 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
984 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
985 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
986 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
987 		UVD_LMI_CTRL__REQ_MODE_MASK |
988 		UVD_LMI_CTRL__CRC_RESET_MASK |
989 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
990 		0x00100000L, 0xFFFFFFFF, 0);
991 
992 #ifdef __BIG_ENDIAN
993 	/* swap (8 in 32) RB and IB */
994 	lmi_swap_cntl = 0xa;
995 #endif
996 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
997 
998 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_CNTL,
999 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
1000 
1001 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXA0,
1002 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
1003 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
1004 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
1005 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1006 
1007 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXB0,
1008 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1009 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1010 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1011 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1012 
1013 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUX,
1014 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1015 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1016 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1017 
1018 	vcn_v1_0_mc_resume_dpg_mode(adev);
1019 
1020 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1021 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1022 
1023 	/* boot up the VCPU */
1024 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1025 
1026 	/* enable UMC */
1027 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL2,
1028 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1029 		0xFFFFFFFF, 0);
1030 
1031 	/* enable master interrupt */
1032 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
1033 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1034 
1035 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1036 	/* setup mmUVD_LMI_CTRL */
1037 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL,
1038 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1039 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1040 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1041 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1042 		UVD_LMI_CTRL__REQ_MODE_MASK |
1043 		UVD_LMI_CTRL__CRC_RESET_MASK |
1044 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1045 		0x00100000L, 0xFFFFFFFF, 1);
1046 
1047 	tmp = adev->gfx.config.gb_addr_config;
1048 	/* setup VCN global tiling registers */
1049 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1050 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1051 
1052 	/* enable System Interrupt for JRBC */
1053 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SYS_INT_EN,
1054 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1055 
1056 	/* force RBC into idle state */
1057 	rb_bufsz = order_base_2(ring->ring_size);
1058 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1059 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1060 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1061 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1062 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1063 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1064 
1065 	/* set the write pointer delay */
1066 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1067 
1068 	/* set the wb address */
1069 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1070 								(upper_32_bits(ring->gpu_addr) >> 2));
1071 
1072 	/* programm the RB_BASE for ring buffer */
1073 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1074 								lower_32_bits(ring->gpu_addr));
1075 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1076 								upper_32_bits(ring->gpu_addr));
1077 
1078 	/* Initialize the ring buffer's read and write pointers */
1079 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1080 
1081 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1082 
1083 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1084 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1085 								lower_32_bits(ring->wptr));
1086 
1087 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1088 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1089 
1090 	jpeg_v1_0_start(adev, 1);
1091 
1092 	return 0;
1093 }
1094 
1095 static int vcn_v1_0_start(struct amdgpu_device *adev)
1096 {
1097 	int r;
1098 
1099 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1100 		r = vcn_v1_0_start_dpg_mode(adev);
1101 	else
1102 		r = vcn_v1_0_start_spg_mode(adev);
1103 	return r;
1104 }
1105 
1106 /**
1107  * vcn_v1_0_stop - stop VCN block
1108  *
1109  * @adev: amdgpu_device pointer
1110  *
1111  * stop the VCN block
1112  */
1113 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1114 {
1115 	int ret_code, tmp;
1116 
1117 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7, ret_code);
1118 
1119 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1120 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1121 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1122 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1123 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp, ret_code);
1124 
1125 	/* put VCPU into reset */
1126 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1127 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1128 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1129 
1130 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1131 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1132 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp, ret_code);
1133 
1134 	/* disable VCPU clock */
1135 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1136 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1137 
1138 	/* reset LMI UMC/LMI */
1139 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1140 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1141 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1142 
1143 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1144 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1145 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1146 
1147 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1148 
1149 	vcn_v1_0_enable_clock_gating(adev);
1150 	vcn_1_0_enable_static_power_gating(adev);
1151 	return 0;
1152 }
1153 
1154 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1155 {
1156 	int ret_code = 0;
1157 	uint32_t tmp;
1158 
1159 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1160 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1161 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1162 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1163 
1164 	/* wait for read ptr to be equal to write ptr */
1165 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1166 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
1167 
1168 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1169 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF, ret_code);
1170 
1171 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1172 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
1173 
1174 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1175 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
1176 
1177 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1178 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1179 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1180 
1181 	/* disable dynamic power gating mode */
1182 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1183 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1184 
1185 	return 0;
1186 }
1187 
1188 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1189 {
1190 	int r;
1191 
1192 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1193 		r = vcn_v1_0_stop_dpg_mode(adev);
1194 	else
1195 		r = vcn_v1_0_stop_spg_mode(adev);
1196 
1197 	return r;
1198 }
1199 
1200 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1201 				int inst_idx, struct dpg_pause_state *new_state)
1202 {
1203 	int ret_code;
1204 	uint32_t reg_data = 0;
1205 	uint32_t reg_data2 = 0;
1206 	struct amdgpu_ring *ring;
1207 
1208 	/* pause/unpause if state is changed */
1209 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1210 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1211 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1212 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1213 			new_state->fw_based, new_state->jpeg);
1214 
1215 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1216 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1217 
1218 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1219 			ret_code = 0;
1220 
1221 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1222 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1223 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1224 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1225 
1226 			if (!ret_code) {
1227 				/* pause DPG non-jpeg */
1228 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1229 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1230 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1231 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1232 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK, ret_code);
1233 
1234 				/* Restore */
1235 				ring = &adev->vcn.inst->ring_enc[0];
1236 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1237 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1238 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1239 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1240 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1241 
1242 				ring = &adev->vcn.inst->ring_enc[1];
1243 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1244 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1245 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1246 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1247 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1248 
1249 				ring = &adev->vcn.inst->ring_dec;
1250 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1251 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1252 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1253 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1254 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1255 			}
1256 		} else {
1257 			/* unpause dpg non-jpeg, no need to wait */
1258 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1259 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1260 		}
1261 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1262 	}
1263 
1264 	/* pause/unpause if state is changed */
1265 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1266 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1267 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1268 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1269 			new_state->fw_based, new_state->jpeg);
1270 
1271 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1272 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1273 
1274 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1275 			ret_code = 0;
1276 
1277 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1278 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1279 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1280 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1281 
1282 			if (!ret_code) {
1283 				/* Make sure JPRG Snoop is disabled before sending the pause */
1284 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1285 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1286 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1287 
1288 				/* pause DPG jpeg */
1289 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1290 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1291 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1292 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1293 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK, ret_code);
1294 
1295 				/* Restore */
1296 				ring = &adev->jpeg.inst->ring_dec;
1297 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1298 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1299 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1300 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1301 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1302 							lower_32_bits(ring->gpu_addr));
1303 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1304 							upper_32_bits(ring->gpu_addr));
1305 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1306 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1307 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1308 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1309 
1310 				ring = &adev->vcn.inst->ring_dec;
1311 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1312 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1313 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1314 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1315 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
1316 			}
1317 		} else {
1318 			/* unpause dpg jpeg, no need to wait */
1319 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1320 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1321 		}
1322 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1323 	}
1324 
1325 	return 0;
1326 }
1327 
1328 static bool vcn_v1_0_is_idle(void *handle)
1329 {
1330 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1331 
1332 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1333 }
1334 
1335 static int vcn_v1_0_wait_for_idle(void *handle)
1336 {
1337 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1338 	int ret = 0;
1339 
1340 	SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1341 		UVD_STATUS__IDLE, ret);
1342 
1343 	return ret;
1344 }
1345 
1346 static int vcn_v1_0_set_clockgating_state(void *handle,
1347 					  enum amd_clockgating_state state)
1348 {
1349 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1350 	bool enable = (state == AMD_CG_STATE_GATE);
1351 
1352 	if (enable) {
1353 		/* wait for STATUS to clear */
1354 		if (!vcn_v1_0_is_idle(handle))
1355 			return -EBUSY;
1356 		vcn_v1_0_enable_clock_gating(adev);
1357 	} else {
1358 		/* disable HW gating and enable Sw gating */
1359 		vcn_v1_0_disable_clock_gating(adev);
1360 	}
1361 	return 0;
1362 }
1363 
1364 /**
1365  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1366  *
1367  * @ring: amdgpu_ring pointer
1368  *
1369  * Returns the current hardware read pointer
1370  */
1371 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1372 {
1373 	struct amdgpu_device *adev = ring->adev;
1374 
1375 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1376 }
1377 
1378 /**
1379  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1380  *
1381  * @ring: amdgpu_ring pointer
1382  *
1383  * Returns the current hardware write pointer
1384  */
1385 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1386 {
1387 	struct amdgpu_device *adev = ring->adev;
1388 
1389 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1390 }
1391 
1392 /**
1393  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1394  *
1395  * @ring: amdgpu_ring pointer
1396  *
1397  * Commits the write pointer to the hardware
1398  */
1399 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1400 {
1401 	struct amdgpu_device *adev = ring->adev;
1402 
1403 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1404 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1405 			lower_32_bits(ring->wptr) | 0x80000000);
1406 
1407 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1408 }
1409 
1410 /**
1411  * vcn_v1_0_dec_ring_insert_start - insert a start command
1412  *
1413  * @ring: amdgpu_ring pointer
1414  *
1415  * Write a start command to the ring.
1416  */
1417 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1418 {
1419 	struct amdgpu_device *adev = ring->adev;
1420 
1421 	amdgpu_ring_write(ring,
1422 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1423 	amdgpu_ring_write(ring, 0);
1424 	amdgpu_ring_write(ring,
1425 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1426 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1427 }
1428 
1429 /**
1430  * vcn_v1_0_dec_ring_insert_end - insert a end command
1431  *
1432  * @ring: amdgpu_ring pointer
1433  *
1434  * Write a end command to the ring.
1435  */
1436 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1437 {
1438 	struct amdgpu_device *adev = ring->adev;
1439 
1440 	amdgpu_ring_write(ring,
1441 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1442 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1443 }
1444 
1445 /**
1446  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1447  *
1448  * @ring: amdgpu_ring pointer
1449  * @fence: fence to emit
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  * @ib: indirect buffer to execute
1489  *
1490  * Write ring commands to execute the indirect buffer
1491  */
1492 static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
1493 					struct amdgpu_job *job,
1494 					struct amdgpu_ib *ib,
1495 					uint32_t flags)
1496 {
1497 	struct amdgpu_device *adev = ring->adev;
1498 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1499 
1500 	amdgpu_ring_write(ring,
1501 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
1502 	amdgpu_ring_write(ring, vmid);
1503 
1504 	amdgpu_ring_write(ring,
1505 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
1506 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1507 	amdgpu_ring_write(ring,
1508 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
1509 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1510 	amdgpu_ring_write(ring,
1511 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
1512 	amdgpu_ring_write(ring, ib->length_dw);
1513 }
1514 
1515 static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
1516 					    uint32_t reg, uint32_t val,
1517 					    uint32_t mask)
1518 {
1519 	struct amdgpu_device *adev = ring->adev;
1520 
1521 	amdgpu_ring_write(ring,
1522 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1523 	amdgpu_ring_write(ring, reg << 2);
1524 	amdgpu_ring_write(ring,
1525 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1526 	amdgpu_ring_write(ring, val);
1527 	amdgpu_ring_write(ring,
1528 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
1529 	amdgpu_ring_write(ring, mask);
1530 	amdgpu_ring_write(ring,
1531 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1532 	amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
1533 }
1534 
1535 static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
1536 					    unsigned vmid, uint64_t pd_addr)
1537 {
1538 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1539 	uint32_t data0, data1, mask;
1540 
1541 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1542 
1543 	/* wait for register write */
1544 	data0 = hub->ctx0_ptb_addr_lo32 + vmid * 2;
1545 	data1 = lower_32_bits(pd_addr);
1546 	mask = 0xffffffff;
1547 	vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
1548 }
1549 
1550 static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
1551 					uint32_t reg, uint32_t val)
1552 {
1553 	struct amdgpu_device *adev = ring->adev;
1554 
1555 	amdgpu_ring_write(ring,
1556 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1557 	amdgpu_ring_write(ring, reg << 2);
1558 	amdgpu_ring_write(ring,
1559 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1560 	amdgpu_ring_write(ring, val);
1561 	amdgpu_ring_write(ring,
1562 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1563 	amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
1564 }
1565 
1566 /**
1567  * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
1568  *
1569  * @ring: amdgpu_ring pointer
1570  *
1571  * Returns the current hardware enc read pointer
1572  */
1573 static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
1574 {
1575 	struct amdgpu_device *adev = ring->adev;
1576 
1577 	if (ring == &adev->vcn.inst->ring_enc[0])
1578 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
1579 	else
1580 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
1581 }
1582 
1583  /**
1584  * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
1585  *
1586  * @ring: amdgpu_ring pointer
1587  *
1588  * Returns the current hardware enc write pointer
1589  */
1590 static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
1591 {
1592 	struct amdgpu_device *adev = ring->adev;
1593 
1594 	if (ring == &adev->vcn.inst->ring_enc[0])
1595 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1596 	else
1597 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1598 }
1599 
1600  /**
1601  * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
1602  *
1603  * @ring: amdgpu_ring pointer
1604  *
1605  * Commits the enc write pointer to the hardware
1606  */
1607 static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
1608 {
1609 	struct amdgpu_device *adev = ring->adev;
1610 
1611 	if (ring == &adev->vcn.inst->ring_enc[0])
1612 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
1613 			lower_32_bits(ring->wptr));
1614 	else
1615 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
1616 			lower_32_bits(ring->wptr));
1617 }
1618 
1619 /**
1620  * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
1621  *
1622  * @ring: amdgpu_ring pointer
1623  * @fence: fence to emit
1624  *
1625  * Write enc a fence and a trap command to the ring.
1626  */
1627 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1628 			u64 seq, unsigned flags)
1629 {
1630 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1631 
1632 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1633 	amdgpu_ring_write(ring, addr);
1634 	amdgpu_ring_write(ring, upper_32_bits(addr));
1635 	amdgpu_ring_write(ring, seq);
1636 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1637 }
1638 
1639 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1640 {
1641 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1642 }
1643 
1644 /**
1645  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1646  *
1647  * @ring: amdgpu_ring pointer
1648  * @ib: indirect buffer to execute
1649  *
1650  * Write enc ring commands to execute the indirect buffer
1651  */
1652 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1653 					struct amdgpu_job *job,
1654 					struct amdgpu_ib *ib,
1655 					uint32_t flags)
1656 {
1657 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1658 
1659 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1660 	amdgpu_ring_write(ring, vmid);
1661 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1662 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1663 	amdgpu_ring_write(ring, ib->length_dw);
1664 }
1665 
1666 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1667 					    uint32_t reg, uint32_t val,
1668 					    uint32_t mask)
1669 {
1670 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1671 	amdgpu_ring_write(ring, reg << 2);
1672 	amdgpu_ring_write(ring, mask);
1673 	amdgpu_ring_write(ring, val);
1674 }
1675 
1676 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1677 					    unsigned int vmid, uint64_t pd_addr)
1678 {
1679 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1680 
1681 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1682 
1683 	/* wait for reg writes */
1684 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 + vmid * 2,
1685 					lower_32_bits(pd_addr), 0xffffffff);
1686 }
1687 
1688 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1689 					uint32_t reg, uint32_t val)
1690 {
1691 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1692 	amdgpu_ring_write(ring,	reg << 2);
1693 	amdgpu_ring_write(ring, val);
1694 }
1695 
1696 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1697 					struct amdgpu_irq_src *source,
1698 					unsigned type,
1699 					enum amdgpu_interrupt_state state)
1700 {
1701 	return 0;
1702 }
1703 
1704 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1705 				      struct amdgpu_irq_src *source,
1706 				      struct amdgpu_iv_entry *entry)
1707 {
1708 	DRM_DEBUG("IH: VCN TRAP\n");
1709 
1710 	switch (entry->src_id) {
1711 	case 124:
1712 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1713 		break;
1714 	case 119:
1715 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1716 		break;
1717 	case 120:
1718 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1719 		break;
1720 	default:
1721 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1722 			  entry->src_id, entry->src_data[0]);
1723 		break;
1724 	}
1725 
1726 	return 0;
1727 }
1728 
1729 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1730 {
1731 	struct amdgpu_device *adev = ring->adev;
1732 	int i;
1733 
1734 	WARN_ON(ring->wptr % 2 || count % 2);
1735 
1736 	for (i = 0; i < count / 2; i++) {
1737 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1738 		amdgpu_ring_write(ring, 0);
1739 	}
1740 }
1741 
1742 static int vcn_v1_0_set_powergating_state(void *handle,
1743 					  enum amd_powergating_state state)
1744 {
1745 	/* This doesn't actually powergate the VCN block.
1746 	 * That's done in the dpm code via the SMC.  This
1747 	 * just re-inits the block as necessary.  The actual
1748 	 * gating still happens in the dpm code.  We should
1749 	 * revisit this when there is a cleaner line between
1750 	 * the smc and the hw blocks
1751 	 */
1752 	int ret;
1753 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1754 
1755 	if(state == adev->vcn.cur_state)
1756 		return 0;
1757 
1758 	if (state == AMD_PG_STATE_GATE)
1759 		ret = vcn_v1_0_stop(adev);
1760 	else
1761 		ret = vcn_v1_0_start(adev);
1762 
1763 	if(!ret)
1764 		adev->vcn.cur_state = state;
1765 	return ret;
1766 }
1767 
1768 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1769 {
1770 	struct amdgpu_device *adev =
1771 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1772 	unsigned int fences = 0, i;
1773 
1774 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1775 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1776 
1777 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1778 		struct dpg_pause_state new_state;
1779 
1780 		if (fences)
1781 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1782 		else
1783 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1784 
1785 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1786 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1787 		else
1788 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1789 
1790 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1791 	}
1792 
1793 	fences += amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec);
1794 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1795 
1796 	if (fences == 0) {
1797 		amdgpu_gfx_off_ctrl(adev, true);
1798 		if (adev->pm.dpm_enabled)
1799 			amdgpu_dpm_enable_uvd(adev, false);
1800 		else
1801 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1802 			       AMD_PG_STATE_GATE);
1803 	} else {
1804 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1805 	}
1806 }
1807 
1808 void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1809 {
1810 	struct amdgpu_device *adev = ring->adev;
1811 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1812 
1813 	if (set_clocks) {
1814 		amdgpu_gfx_off_ctrl(adev, false);
1815 		if (adev->pm.dpm_enabled)
1816 			amdgpu_dpm_enable_uvd(adev, true);
1817 		else
1818 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1819 			       AMD_PG_STATE_UNGATE);
1820 	}
1821 
1822 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1823 		struct dpg_pause_state new_state;
1824 		unsigned int fences = 0, i;
1825 
1826 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1827 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1828 
1829 		if (fences)
1830 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1831 		else
1832 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1833 
1834 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1835 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1836 		else
1837 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1838 
1839 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1840 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1841 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1842 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1843 
1844 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1845 	}
1846 }
1847 
1848 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1849 	.name = "vcn_v1_0",
1850 	.early_init = vcn_v1_0_early_init,
1851 	.late_init = NULL,
1852 	.sw_init = vcn_v1_0_sw_init,
1853 	.sw_fini = vcn_v1_0_sw_fini,
1854 	.hw_init = vcn_v1_0_hw_init,
1855 	.hw_fini = vcn_v1_0_hw_fini,
1856 	.suspend = vcn_v1_0_suspend,
1857 	.resume = vcn_v1_0_resume,
1858 	.is_idle = vcn_v1_0_is_idle,
1859 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1860 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1861 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1862 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1863 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1864 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1865 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1866 };
1867 
1868 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1869 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1870 	.align_mask = 0xf,
1871 	.support_64bit_ptrs = false,
1872 	.no_user_fence = true,
1873 	.vmhub = AMDGPU_MMHUB_0,
1874 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1875 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1876 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1877 	.emit_frame_size =
1878 		6 + 6 + /* hdp invalidate / flush */
1879 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1880 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1881 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1882 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1883 		6,
1884 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1885 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1886 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1887 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1888 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1889 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1890 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
1891 	.insert_start = vcn_v1_0_dec_ring_insert_start,
1892 	.insert_end = vcn_v1_0_dec_ring_insert_end,
1893 	.pad_ib = amdgpu_ring_generic_pad_ib,
1894 	.begin_use = vcn_v1_0_ring_begin_use,
1895 	.end_use = amdgpu_vcn_ring_end_use,
1896 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
1897 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
1898 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1899 };
1900 
1901 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
1902 	.type = AMDGPU_RING_TYPE_VCN_ENC,
1903 	.align_mask = 0x3f,
1904 	.nop = VCN_ENC_CMD_NO_OP,
1905 	.support_64bit_ptrs = false,
1906 	.no_user_fence = true,
1907 	.vmhub = AMDGPU_MMHUB_0,
1908 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
1909 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
1910 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
1911 	.emit_frame_size =
1912 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1913 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
1914 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
1915 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
1916 		1, /* vcn_v1_0_enc_ring_insert_end */
1917 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
1918 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
1919 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
1920 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
1921 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
1922 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
1923 	.insert_nop = amdgpu_ring_insert_nop,
1924 	.insert_end = vcn_v1_0_enc_ring_insert_end,
1925 	.pad_ib = amdgpu_ring_generic_pad_ib,
1926 	.begin_use = vcn_v1_0_ring_begin_use,
1927 	.end_use = amdgpu_vcn_ring_end_use,
1928 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
1929 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
1930 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1931 };
1932 
1933 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
1934 {
1935 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
1936 	DRM_INFO("VCN decode is enabled in VM mode\n");
1937 }
1938 
1939 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
1940 {
1941 	int i;
1942 
1943 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1944 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
1945 
1946 	DRM_INFO("VCN encode is enabled in VM mode\n");
1947 }
1948 
1949 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
1950 	.set = vcn_v1_0_set_interrupt_state,
1951 	.process = vcn_v1_0_process_interrupt,
1952 };
1953 
1954 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
1955 {
1956 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
1957 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
1958 }
1959 
1960 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
1961 {
1962 		.type = AMD_IP_BLOCK_TYPE_VCN,
1963 		.major = 1,
1964 		.minor = 0,
1965 		.rev = 0,
1966 		.funcs = &vcn_v1_0_ip_funcs,
1967 };
1968