xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision 97e6ea6d)
1 /*
2  * Copyright 2016 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23 
24 #include <linux/firmware.h>
25 
26 #include "amdgpu.h"
27 #include "amdgpu_vcn.h"
28 #include "amdgpu_pm.h"
29 #include "soc15.h"
30 #include "soc15d.h"
31 #include "soc15_common.h"
32 
33 #include "vcn/vcn_1_0_offset.h"
34 #include "vcn/vcn_1_0_sh_mask.h"
35 #include "mmhub/mmhub_9_1_offset.h"
36 #include "mmhub/mmhub_9_1_sh_mask.h"
37 
38 #include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"
39 #include "jpeg_v1_0.h"
40 #include "vcn_v1_0.h"
41 
42 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0		0x05ab
43 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0_BASE_IDX	1
44 #define mmUVD_REG_XX_MASK_1_0			0x05ac
45 #define mmUVD_REG_XX_MASK_1_0_BASE_IDX		1
46 
47 static int vcn_v1_0_stop(struct amdgpu_device *adev);
48 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
49 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
50 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev);
51 static int vcn_v1_0_set_powergating_state(void *handle, enum amd_powergating_state state);
52 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
53 				int inst_idx, struct dpg_pause_state *new_state);
54 
55 static void vcn_v1_0_idle_work_handler(struct work_struct *work);
56 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring);
57 
58 /**
59  * vcn_v1_0_early_init - set function pointers
60  *
61  * @handle: amdgpu_device pointer
62  *
63  * Set ring and irq function pointers
64  */
65 static int vcn_v1_0_early_init(void *handle)
66 {
67 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
68 
69 	adev->vcn.num_vcn_inst = 1;
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 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
116 		const struct common_firmware_header *hdr;
117 		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
118 		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].ucode_id = AMDGPU_UCODE_ID_VCN;
119 		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].fw = adev->vcn.fw;
120 		adev->firmware.fw_size +=
121 			ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
122 		dev_info(adev->dev, "Will use PSP to load VCN firmware\n");
123 	}
124 
125 	r = amdgpu_vcn_resume(adev);
126 	if (r)
127 		return r;
128 
129 	ring = &adev->vcn.inst->ring_dec;
130 	sprintf(ring->name, "vcn_dec");
131 	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
132 			     AMDGPU_RING_PRIO_DEFAULT, NULL);
133 	if (r)
134 		return r;
135 
136 	adev->vcn.internal.scratch9 = adev->vcn.inst->external.scratch9 =
137 		SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
138 	adev->vcn.internal.data0 = adev->vcn.inst->external.data0 =
139 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
140 	adev->vcn.internal.data1 = adev->vcn.inst->external.data1 =
141 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
142 	adev->vcn.internal.cmd = adev->vcn.inst->external.cmd =
143 		SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
144 	adev->vcn.internal.nop = adev->vcn.inst->external.nop =
145 		SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
146 
147 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
148 		ring = &adev->vcn.inst->ring_enc[i];
149 		sprintf(ring->name, "vcn_enc%d", i);
150 		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0,
151 				     AMDGPU_RING_PRIO_DEFAULT, NULL);
152 		if (r)
153 			return r;
154 	}
155 
156 	adev->vcn.pause_dpg_mode = vcn_v1_0_pause_dpg_mode;
157 
158 	r = jpeg_v1_0_sw_init(handle);
159 
160 	return r;
161 }
162 
163 /**
164  * vcn_v1_0_sw_fini - sw fini for VCN block
165  *
166  * @handle: amdgpu_device pointer
167  *
168  * VCN suspend and free up sw allocation
169  */
170 static int vcn_v1_0_sw_fini(void *handle)
171 {
172 	int r;
173 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
174 
175 	r = amdgpu_vcn_suspend(adev);
176 	if (r)
177 		return r;
178 
179 	jpeg_v1_0_sw_fini(handle);
180 
181 	r = amdgpu_vcn_sw_fini(adev);
182 
183 	return r;
184 }
185 
186 /**
187  * vcn_v1_0_hw_init - start and test VCN block
188  *
189  * @handle: amdgpu_device pointer
190  *
191  * Initialize the hardware, boot up the VCPU and do some testing
192  */
193 static int vcn_v1_0_hw_init(void *handle)
194 {
195 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
196 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
197 	int i, r;
198 
199 	r = amdgpu_ring_test_helper(ring);
200 	if (r)
201 		goto done;
202 
203 	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
204 		ring = &adev->vcn.inst->ring_enc[i];
205 		r = amdgpu_ring_test_helper(ring);
206 		if (r)
207 			goto done;
208 	}
209 
210 	ring = &adev->jpeg.inst->ring_dec;
211 	r = amdgpu_ring_test_helper(ring);
212 	if (r)
213 		goto done;
214 
215 done:
216 	if (!r)
217 		DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
218 			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");
219 
220 	return r;
221 }
222 
223 /**
224  * vcn_v1_0_hw_fini - stop the hardware block
225  *
226  * @handle: amdgpu_device pointer
227  *
228  * Stop the VCN block, mark ring as not ready any more
229  */
230 static int vcn_v1_0_hw_fini(void *handle)
231 {
232 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
233 
234 	cancel_delayed_work_sync(&adev->vcn.idle_work);
235 
236 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
237 		(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
238 		 RREG32_SOC15(VCN, 0, mmUVD_STATUS))) {
239 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
240 	}
241 
242 	return 0;
243 }
244 
245 /**
246  * vcn_v1_0_suspend - suspend VCN block
247  *
248  * @handle: amdgpu_device pointer
249  *
250  * HW fini and suspend VCN block
251  */
252 static int vcn_v1_0_suspend(void *handle)
253 {
254 	int r;
255 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
256 
257 	r = vcn_v1_0_hw_fini(adev);
258 	if (r)
259 		return r;
260 
261 	r = amdgpu_vcn_suspend(adev);
262 
263 	return r;
264 }
265 
266 /**
267  * vcn_v1_0_resume - resume VCN block
268  *
269  * @handle: amdgpu_device pointer
270  *
271  * Resume firmware and hw init VCN block
272  */
273 static int vcn_v1_0_resume(void *handle)
274 {
275 	int r;
276 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
277 
278 	r = amdgpu_vcn_resume(adev);
279 	if (r)
280 		return r;
281 
282 	r = vcn_v1_0_hw_init(adev);
283 
284 	return r;
285 }
286 
287 /**
288  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
289  *
290  * @adev: amdgpu_device pointer
291  *
292  * Let the VCN memory controller know it's offsets
293  */
294 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
295 {
296 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
297 	uint32_t offset;
298 
299 	/* cache window 0: fw */
300 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
301 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
302 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
303 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
304 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
305 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
306 		offset = 0;
307 	} else {
308 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
309 			lower_32_bits(adev->vcn.inst->gpu_addr));
310 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
311 			upper_32_bits(adev->vcn.inst->gpu_addr));
312 		offset = size;
313 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
314 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
315 	}
316 
317 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
318 
319 	/* cache window 1: stack */
320 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
321 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
322 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
323 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
324 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
325 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
326 
327 	/* cache window 2: context */
328 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
329 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
330 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
331 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
332 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
333 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
334 
335 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
336 			adev->gfx.config.gb_addr_config);
337 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
338 			adev->gfx.config.gb_addr_config);
339 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
340 			adev->gfx.config.gb_addr_config);
341 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
342 			adev->gfx.config.gb_addr_config);
343 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
344 			adev->gfx.config.gb_addr_config);
345 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
346 			adev->gfx.config.gb_addr_config);
347 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
348 			adev->gfx.config.gb_addr_config);
349 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
350 			adev->gfx.config.gb_addr_config);
351 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
352 			adev->gfx.config.gb_addr_config);
353 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
354 			adev->gfx.config.gb_addr_config);
355 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
356 			adev->gfx.config.gb_addr_config);
357 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
358 			adev->gfx.config.gb_addr_config);
359 }
360 
361 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
362 {
363 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
364 	uint32_t offset;
365 
366 	/* cache window 0: fw */
367 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
368 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
369 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
370 			     0xFFFFFFFF, 0);
371 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
372 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
373 			     0xFFFFFFFF, 0);
374 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
375 			     0xFFFFFFFF, 0);
376 		offset = 0;
377 	} else {
378 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
379 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
380 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
381 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
382 		offset = size;
383 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
384 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
385 	}
386 
387 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
388 
389 	/* cache window 1: stack */
390 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
391 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
392 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
393 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
394 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
395 			     0xFFFFFFFF, 0);
396 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
397 			     0xFFFFFFFF, 0);
398 
399 	/* cache window 2: context */
400 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
401 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
402 			     0xFFFFFFFF, 0);
403 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
404 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
405 			     0xFFFFFFFF, 0);
406 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
407 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
408 			     0xFFFFFFFF, 0);
409 
410 	/* VCN global tiling registers */
411 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
412 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
413 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
414 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
415 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
416 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
417 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
418 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
419 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
420 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
421 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
422 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
423 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
424 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
425 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
426 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
427 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
428 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
429 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
430 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
431 }
432 
433 /**
434  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
435  *
436  * @adev: amdgpu_device pointer
437  *
438  * Disable clock gating for VCN block
439  */
440 static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
441 {
442 	uint32_t data;
443 
444 	/* JPEG disable CGC */
445 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
446 
447 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
448 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
449 	else
450 		data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
451 
452 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
453 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
454 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
455 
456 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
457 	data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
458 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
459 
460 	/* UVD disable CGC */
461 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
462 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
463 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
464 	else
465 		data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
466 
467 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
468 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
469 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
470 
471 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
472 	data &= ~(UVD_CGC_GATE__SYS_MASK
473 		| UVD_CGC_GATE__UDEC_MASK
474 		| UVD_CGC_GATE__MPEG2_MASK
475 		| UVD_CGC_GATE__REGS_MASK
476 		| UVD_CGC_GATE__RBC_MASK
477 		| UVD_CGC_GATE__LMI_MC_MASK
478 		| UVD_CGC_GATE__LMI_UMC_MASK
479 		| UVD_CGC_GATE__IDCT_MASK
480 		| UVD_CGC_GATE__MPRD_MASK
481 		| UVD_CGC_GATE__MPC_MASK
482 		| UVD_CGC_GATE__LBSI_MASK
483 		| UVD_CGC_GATE__LRBBM_MASK
484 		| UVD_CGC_GATE__UDEC_RE_MASK
485 		| UVD_CGC_GATE__UDEC_CM_MASK
486 		| UVD_CGC_GATE__UDEC_IT_MASK
487 		| UVD_CGC_GATE__UDEC_DB_MASK
488 		| UVD_CGC_GATE__UDEC_MP_MASK
489 		| UVD_CGC_GATE__WCB_MASK
490 		| UVD_CGC_GATE__VCPU_MASK
491 		| UVD_CGC_GATE__SCPU_MASK);
492 	WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);
493 
494 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
495 	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
496 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
497 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
498 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
499 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
500 		| UVD_CGC_CTRL__SYS_MODE_MASK
501 		| UVD_CGC_CTRL__UDEC_MODE_MASK
502 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
503 		| UVD_CGC_CTRL__REGS_MODE_MASK
504 		| UVD_CGC_CTRL__RBC_MODE_MASK
505 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
506 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
507 		| UVD_CGC_CTRL__IDCT_MODE_MASK
508 		| UVD_CGC_CTRL__MPRD_MODE_MASK
509 		| UVD_CGC_CTRL__MPC_MODE_MASK
510 		| UVD_CGC_CTRL__LBSI_MODE_MASK
511 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
512 		| UVD_CGC_CTRL__WCB_MODE_MASK
513 		| UVD_CGC_CTRL__VCPU_MODE_MASK
514 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
515 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
516 
517 	/* turn on */
518 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
519 	data |= (UVD_SUVD_CGC_GATE__SRE_MASK
520 		| UVD_SUVD_CGC_GATE__SIT_MASK
521 		| UVD_SUVD_CGC_GATE__SMP_MASK
522 		| UVD_SUVD_CGC_GATE__SCM_MASK
523 		| UVD_SUVD_CGC_GATE__SDB_MASK
524 		| UVD_SUVD_CGC_GATE__SRE_H264_MASK
525 		| UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
526 		| UVD_SUVD_CGC_GATE__SIT_H264_MASK
527 		| UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
528 		| UVD_SUVD_CGC_GATE__SCM_H264_MASK
529 		| UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
530 		| UVD_SUVD_CGC_GATE__SDB_H264_MASK
531 		| UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
532 		| UVD_SUVD_CGC_GATE__SCLR_MASK
533 		| UVD_SUVD_CGC_GATE__UVD_SC_MASK
534 		| UVD_SUVD_CGC_GATE__ENT_MASK
535 		| UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
536 		| UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
537 		| UVD_SUVD_CGC_GATE__SITE_MASK
538 		| UVD_SUVD_CGC_GATE__SRE_VP9_MASK
539 		| UVD_SUVD_CGC_GATE__SCM_VP9_MASK
540 		| UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
541 		| UVD_SUVD_CGC_GATE__SDB_VP9_MASK
542 		| UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
543 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);
544 
545 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
546 	data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
547 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
548 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
549 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
550 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
551 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
552 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
553 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
554 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
555 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
556 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
557 }
558 
559 /**
560  * vcn_v1_0_enable_clock_gating - enable VCN clock gating
561  *
562  * @adev: amdgpu_device pointer
563  *
564  * Enable clock gating for VCN block
565  */
566 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
567 {
568 	uint32_t data = 0;
569 
570 	/* enable JPEG CGC */
571 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
572 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
573 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
574 	else
575 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
576 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
577 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
578 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
579 
580 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
581 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
582 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
583 
584 	/* enable UVD CGC */
585 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
586 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
587 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
588 	else
589 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
590 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
591 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
592 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
593 
594 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
595 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
596 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
597 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
598 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
599 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
600 		| UVD_CGC_CTRL__SYS_MODE_MASK
601 		| UVD_CGC_CTRL__UDEC_MODE_MASK
602 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
603 		| UVD_CGC_CTRL__REGS_MODE_MASK
604 		| UVD_CGC_CTRL__RBC_MODE_MASK
605 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
606 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
607 		| UVD_CGC_CTRL__IDCT_MODE_MASK
608 		| UVD_CGC_CTRL__MPRD_MODE_MASK
609 		| UVD_CGC_CTRL__MPC_MODE_MASK
610 		| UVD_CGC_CTRL__LBSI_MODE_MASK
611 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
612 		| UVD_CGC_CTRL__WCB_MODE_MASK
613 		| UVD_CGC_CTRL__VCPU_MODE_MASK
614 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
615 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
616 
617 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
618 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
619 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
620 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
621 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
622 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
623 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
624 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
625 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
626 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
627 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
628 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
629 }
630 
631 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
632 {
633 	uint32_t reg_data = 0;
634 
635 	/* disable JPEG CGC */
636 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
637 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
638 	else
639 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
640 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
641 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
642 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
643 
644 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
645 
646 	/* enable sw clock gating control */
647 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
648 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
649 	else
650 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
651 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
652 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
653 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
654 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
655 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
656 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
657 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
658 		 UVD_CGC_CTRL__SYS_MODE_MASK |
659 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
660 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
661 		 UVD_CGC_CTRL__REGS_MODE_MASK |
662 		 UVD_CGC_CTRL__RBC_MODE_MASK |
663 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
664 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
665 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
666 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
667 		 UVD_CGC_CTRL__MPC_MODE_MASK |
668 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
669 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
670 		 UVD_CGC_CTRL__WCB_MODE_MASK |
671 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
672 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
673 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
674 
675 	/* turn off clock gating */
676 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
677 
678 	/* turn on SUVD clock gating */
679 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
680 
681 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
682 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
683 }
684 
685 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
686 {
687 	uint32_t data = 0;
688 
689 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
690 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
691 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
692 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
693 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
694 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
695 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
696 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
697 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
698 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
699 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
700 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
701 
702 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
703 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF);
704 	} else {
705 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
706 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
707 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
708 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
709 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
710 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
711 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
712 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
713 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
714 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
715 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
716 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
717 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF);
718 	}
719 
720 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
721 
722 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
723 	data &= ~0x103;
724 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
725 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
726 
727 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
728 }
729 
730 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
731 {
732 	uint32_t data = 0;
733 
734 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
735 		/* Before power off, this indicator has to be turned on */
736 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
737 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
738 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
739 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
740 
741 
742 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
743 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
744 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
745 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
746 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
747 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
748 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
749 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
750 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
751 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
752 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
753 
754 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
755 
756 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
757 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
758 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
759 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
760 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
761 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
762 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
763 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
764 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
765 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
766 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
767 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF);
768 	}
769 }
770 
771 /**
772  * vcn_v1_0_start_spg_mode - start VCN block
773  *
774  * @adev: amdgpu_device pointer
775  *
776  * Setup and start the VCN block
777  */
778 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
779 {
780 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
781 	uint32_t rb_bufsz, tmp;
782 	uint32_t lmi_swap_cntl;
783 	int i, j, r;
784 
785 	/* disable byte swapping */
786 	lmi_swap_cntl = 0;
787 
788 	vcn_1_0_disable_static_power_gating(adev);
789 
790 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
791 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
792 
793 	/* disable clock gating */
794 	vcn_v1_0_disable_clock_gating(adev);
795 
796 	/* disable interupt */
797 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
798 			~UVD_MASTINT_EN__VCPU_EN_MASK);
799 
800 	/* initialize VCN memory controller */
801 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
802 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
803 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
804 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
805 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
806 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
807 
808 #ifdef __BIG_ENDIAN
809 	/* swap (8 in 32) RB and IB */
810 	lmi_swap_cntl = 0xa;
811 #endif
812 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
813 
814 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
815 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
816 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
817 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
818 
819 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
820 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
821 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
822 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
823 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
824 
825 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
826 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
827 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
828 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
829 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
830 
831 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
832 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
833 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
834 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
835 
836 	vcn_v1_0_mc_resume_spg_mode(adev);
837 
838 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
839 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
840 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
841 
842 	/* enable VCPU clock */
843 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
844 
845 	/* boot up the VCPU */
846 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
847 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
848 
849 	/* enable UMC */
850 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
851 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
852 
853 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
854 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
855 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
856 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
857 
858 	for (i = 0; i < 10; ++i) {
859 		uint32_t status;
860 
861 		for (j = 0; j < 100; ++j) {
862 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
863 			if (status & UVD_STATUS__IDLE)
864 				break;
865 			mdelay(10);
866 		}
867 		r = 0;
868 		if (status & UVD_STATUS__IDLE)
869 			break;
870 
871 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
872 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
873 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
874 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
875 		mdelay(10);
876 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
877 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
878 		mdelay(10);
879 		r = -1;
880 	}
881 
882 	if (r) {
883 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
884 		return r;
885 	}
886 	/* enable master interrupt */
887 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
888 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
889 
890 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
891 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
892 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
893 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
894 
895 	/* clear the busy bit of UVD_STATUS */
896 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
897 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
898 
899 	/* force RBC into idle state */
900 	rb_bufsz = order_base_2(ring->ring_size);
901 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
902 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
903 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
904 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
905 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
906 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
907 
908 	/* set the write pointer delay */
909 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
910 
911 	/* set the wb address */
912 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
913 			(upper_32_bits(ring->gpu_addr) >> 2));
914 
915 	/* program the RB_BASE for ring buffer */
916 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
917 			lower_32_bits(ring->gpu_addr));
918 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
919 			upper_32_bits(ring->gpu_addr));
920 
921 	/* Initialize the ring buffer's read and write pointers */
922 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
923 
924 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
925 
926 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
927 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
928 			lower_32_bits(ring->wptr));
929 
930 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
931 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
932 
933 	ring = &adev->vcn.inst->ring_enc[0];
934 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
935 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
936 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
937 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
938 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
939 
940 	ring = &adev->vcn.inst->ring_enc[1];
941 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
942 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
943 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
944 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
945 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
946 
947 	jpeg_v1_0_start(adev, 0);
948 
949 	return 0;
950 }
951 
952 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
953 {
954 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
955 	uint32_t rb_bufsz, tmp;
956 	uint32_t lmi_swap_cntl;
957 
958 	/* disable byte swapping */
959 	lmi_swap_cntl = 0;
960 
961 	vcn_1_0_enable_static_power_gating(adev);
962 
963 	/* enable dynamic power gating mode */
964 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
965 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
966 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
967 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
968 
969 	/* enable clock gating */
970 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
971 
972 	/* enable VCPU clock */
973 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
974 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
975 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
976 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
977 
978 	/* disable interupt */
979 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
980 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
981 
982 	/* initialize VCN memory controller */
983 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
984 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
985 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
986 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
987 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
988 		UVD_LMI_CTRL__REQ_MODE_MASK |
989 		UVD_LMI_CTRL__CRC_RESET_MASK |
990 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
991 		0x00100000L, 0xFFFFFFFF, 0);
992 
993 #ifdef __BIG_ENDIAN
994 	/* swap (8 in 32) RB and IB */
995 	lmi_swap_cntl = 0xa;
996 #endif
997 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
998 
999 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_CNTL,
1000 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
1001 
1002 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXA0,
1003 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
1004 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
1005 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
1006 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1007 
1008 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXB0,
1009 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1010 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1011 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1012 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1013 
1014 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUX,
1015 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1016 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1017 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1018 
1019 	vcn_v1_0_mc_resume_dpg_mode(adev);
1020 
1021 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1022 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1023 
1024 	/* boot up the VCPU */
1025 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1026 
1027 	/* enable UMC */
1028 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL2,
1029 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1030 		0xFFFFFFFF, 0);
1031 
1032 	/* enable master interrupt */
1033 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
1034 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1035 
1036 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1037 	/* setup mmUVD_LMI_CTRL */
1038 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
1039 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1040 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1041 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1042 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1043 		UVD_LMI_CTRL__REQ_MODE_MASK |
1044 		UVD_LMI_CTRL__CRC_RESET_MASK |
1045 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1046 		0x00100000L, 0xFFFFFFFF, 1);
1047 
1048 	tmp = adev->gfx.config.gb_addr_config;
1049 	/* setup VCN global tiling registers */
1050 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1051 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1052 
1053 	/* enable System Interrupt for JRBC */
1054 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SYS_INT_EN,
1055 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1056 
1057 	/* force RBC into idle state */
1058 	rb_bufsz = order_base_2(ring->ring_size);
1059 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1060 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1061 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1062 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1063 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1064 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1065 
1066 	/* set the write pointer delay */
1067 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1068 
1069 	/* set the wb address */
1070 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1071 								(upper_32_bits(ring->gpu_addr) >> 2));
1072 
1073 	/* program the RB_BASE for ring buffer */
1074 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1075 								lower_32_bits(ring->gpu_addr));
1076 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1077 								upper_32_bits(ring->gpu_addr));
1078 
1079 	/* Initialize the ring buffer's read and write pointers */
1080 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1081 
1082 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1083 
1084 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1085 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1086 								lower_32_bits(ring->wptr));
1087 
1088 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1089 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1090 
1091 	jpeg_v1_0_start(adev, 1);
1092 
1093 	return 0;
1094 }
1095 
1096 static int vcn_v1_0_start(struct amdgpu_device *adev)
1097 {
1098 	int r;
1099 
1100 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1101 		r = vcn_v1_0_start_dpg_mode(adev);
1102 	else
1103 		r = vcn_v1_0_start_spg_mode(adev);
1104 	return r;
1105 }
1106 
1107 /**
1108  * vcn_v1_0_stop_spg_mode - stop VCN block
1109  *
1110  * @adev: amdgpu_device pointer
1111  *
1112  * stop the VCN block
1113  */
1114 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1115 {
1116 	int tmp;
1117 
1118 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7);
1119 
1120 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1121 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1122 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1123 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1124 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1125 
1126 	/* stall UMC channel */
1127 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
1128 		UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
1129 		~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
1130 
1131 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1132 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1133 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1134 
1135 	/* disable VCPU clock */
1136 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1137 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1138 
1139 	/* reset LMI UMC/LMI */
1140 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1141 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1142 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1143 
1144 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1145 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1146 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1147 
1148 	/* put VCPU into reset */
1149 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1150 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1151 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1152 
1153 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1154 
1155 	vcn_v1_0_enable_clock_gating(adev);
1156 	vcn_1_0_enable_static_power_gating(adev);
1157 	return 0;
1158 }
1159 
1160 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1161 {
1162 	uint32_t tmp;
1163 
1164 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1165 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1166 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1167 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1168 
1169 	/* wait for read ptr to be equal to write ptr */
1170 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1171 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF);
1172 
1173 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1174 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
1175 
1176 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1177 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF);
1178 
1179 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1180 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF);
1181 
1182 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1183 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1184 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1185 
1186 	/* disable dynamic power gating mode */
1187 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1188 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1189 
1190 	return 0;
1191 }
1192 
1193 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1194 {
1195 	int r;
1196 
1197 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1198 		r = vcn_v1_0_stop_dpg_mode(adev);
1199 	else
1200 		r = vcn_v1_0_stop_spg_mode(adev);
1201 
1202 	return r;
1203 }
1204 
1205 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1206 				int inst_idx, struct dpg_pause_state *new_state)
1207 {
1208 	int ret_code;
1209 	uint32_t reg_data = 0;
1210 	uint32_t reg_data2 = 0;
1211 	struct amdgpu_ring *ring;
1212 
1213 	/* pause/unpause if state is changed */
1214 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1215 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1216 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1217 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1218 			new_state->fw_based, new_state->jpeg);
1219 
1220 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1221 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1222 
1223 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1224 			ret_code = 0;
1225 
1226 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1227 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1228 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1229 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1230 
1231 			if (!ret_code) {
1232 				/* pause DPG non-jpeg */
1233 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1234 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1235 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1236 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1237 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1238 
1239 				/* Restore */
1240 				ring = &adev->vcn.inst->ring_enc[0];
1241 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1242 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1243 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1244 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1245 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1246 
1247 				ring = &adev->vcn.inst->ring_enc[1];
1248 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1249 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1250 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1251 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1252 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1253 
1254 				ring = &adev->vcn.inst->ring_dec;
1255 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1256 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1257 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1258 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1259 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1260 			}
1261 		} else {
1262 			/* unpause dpg non-jpeg, no need to wait */
1263 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1264 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1265 		}
1266 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1267 	}
1268 
1269 	/* pause/unpause if state is changed */
1270 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1271 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1272 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1273 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1274 			new_state->fw_based, new_state->jpeg);
1275 
1276 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1277 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1278 
1279 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1280 			ret_code = 0;
1281 
1282 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1283 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1284 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1285 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1286 
1287 			if (!ret_code) {
1288 				/* Make sure JPRG Snoop is disabled before sending the pause */
1289 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1290 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1291 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1292 
1293 				/* pause DPG jpeg */
1294 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1295 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1296 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1297 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1298 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1299 
1300 				/* Restore */
1301 				ring = &adev->jpeg.inst->ring_dec;
1302 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1303 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1304 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1305 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1306 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1307 							lower_32_bits(ring->gpu_addr));
1308 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1309 							upper_32_bits(ring->gpu_addr));
1310 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1311 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1312 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1313 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1314 
1315 				ring = &adev->vcn.inst->ring_dec;
1316 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1317 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1318 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1319 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1320 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1321 			}
1322 		} else {
1323 			/* unpause dpg jpeg, no need to wait */
1324 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1325 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1326 		}
1327 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1328 	}
1329 
1330 	return 0;
1331 }
1332 
1333 static bool vcn_v1_0_is_idle(void *handle)
1334 {
1335 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1336 
1337 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1338 }
1339 
1340 static int vcn_v1_0_wait_for_idle(void *handle)
1341 {
1342 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1343 	int ret;
1344 
1345 	ret = SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1346 		UVD_STATUS__IDLE);
1347 
1348 	return ret;
1349 }
1350 
1351 static int vcn_v1_0_set_clockgating_state(void *handle,
1352 					  enum amd_clockgating_state state)
1353 {
1354 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1355 	bool enable = (state == AMD_CG_STATE_GATE);
1356 
1357 	if (enable) {
1358 		/* wait for STATUS to clear */
1359 		if (!vcn_v1_0_is_idle(handle))
1360 			return -EBUSY;
1361 		vcn_v1_0_enable_clock_gating(adev);
1362 	} else {
1363 		/* disable HW gating and enable Sw gating */
1364 		vcn_v1_0_disable_clock_gating(adev);
1365 	}
1366 	return 0;
1367 }
1368 
1369 /**
1370  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1371  *
1372  * @ring: amdgpu_ring pointer
1373  *
1374  * Returns the current hardware read pointer
1375  */
1376 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1377 {
1378 	struct amdgpu_device *adev = ring->adev;
1379 
1380 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1381 }
1382 
1383 /**
1384  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1385  *
1386  * @ring: amdgpu_ring pointer
1387  *
1388  * Returns the current hardware write pointer
1389  */
1390 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1391 {
1392 	struct amdgpu_device *adev = ring->adev;
1393 
1394 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1395 }
1396 
1397 /**
1398  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1399  *
1400  * @ring: amdgpu_ring pointer
1401  *
1402  * Commits the write pointer to the hardware
1403  */
1404 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1405 {
1406 	struct amdgpu_device *adev = ring->adev;
1407 
1408 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1409 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1410 			lower_32_bits(ring->wptr) | 0x80000000);
1411 
1412 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1413 }
1414 
1415 /**
1416  * vcn_v1_0_dec_ring_insert_start - insert a start command
1417  *
1418  * @ring: amdgpu_ring pointer
1419  *
1420  * Write a start command to the ring.
1421  */
1422 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1423 {
1424 	struct amdgpu_device *adev = ring->adev;
1425 
1426 	amdgpu_ring_write(ring,
1427 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1428 	amdgpu_ring_write(ring, 0);
1429 	amdgpu_ring_write(ring,
1430 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1431 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1432 }
1433 
1434 /**
1435  * vcn_v1_0_dec_ring_insert_end - insert a end command
1436  *
1437  * @ring: amdgpu_ring pointer
1438  *
1439  * Write a end command to the ring.
1440  */
1441 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1442 {
1443 	struct amdgpu_device *adev = ring->adev;
1444 
1445 	amdgpu_ring_write(ring,
1446 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1447 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1448 }
1449 
1450 /**
1451  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1452  *
1453  * @ring: amdgpu_ring pointer
1454  * @addr: address
1455  * @seq: sequence number
1456  * @flags: fence related flags
1457  *
1458  * Write a fence and a trap command to the ring.
1459  */
1460 static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
1461 				     unsigned flags)
1462 {
1463 	struct amdgpu_device *adev = ring->adev;
1464 
1465 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1466 
1467 	amdgpu_ring_write(ring,
1468 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
1469 	amdgpu_ring_write(ring, seq);
1470 	amdgpu_ring_write(ring,
1471 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1472 	amdgpu_ring_write(ring, addr & 0xffffffff);
1473 	amdgpu_ring_write(ring,
1474 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1475 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
1476 	amdgpu_ring_write(ring,
1477 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1478 	amdgpu_ring_write(ring, VCN_DEC_CMD_FENCE << 1);
1479 
1480 	amdgpu_ring_write(ring,
1481 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1482 	amdgpu_ring_write(ring, 0);
1483 	amdgpu_ring_write(ring,
1484 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1485 	amdgpu_ring_write(ring, 0);
1486 	amdgpu_ring_write(ring,
1487 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1488 	amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
1489 }
1490 
1491 /**
1492  * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
1493  *
1494  * @ring: amdgpu_ring pointer
1495  * @job: job to retrieve vmid from
1496  * @ib: indirect buffer to execute
1497  * @flags: unused
1498  *
1499  * Write ring commands to execute the indirect buffer
1500  */
1501 static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
1502 					struct amdgpu_job *job,
1503 					struct amdgpu_ib *ib,
1504 					uint32_t flags)
1505 {
1506 	struct amdgpu_device *adev = ring->adev;
1507 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1508 
1509 	amdgpu_ring_write(ring,
1510 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
1511 	amdgpu_ring_write(ring, vmid);
1512 
1513 	amdgpu_ring_write(ring,
1514 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
1515 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1516 	amdgpu_ring_write(ring,
1517 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
1518 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1519 	amdgpu_ring_write(ring,
1520 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
1521 	amdgpu_ring_write(ring, ib->length_dw);
1522 }
1523 
1524 static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
1525 					    uint32_t reg, uint32_t val,
1526 					    uint32_t mask)
1527 {
1528 	struct amdgpu_device *adev = ring->adev;
1529 
1530 	amdgpu_ring_write(ring,
1531 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1532 	amdgpu_ring_write(ring, reg << 2);
1533 	amdgpu_ring_write(ring,
1534 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1535 	amdgpu_ring_write(ring, val);
1536 	amdgpu_ring_write(ring,
1537 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
1538 	amdgpu_ring_write(ring, mask);
1539 	amdgpu_ring_write(ring,
1540 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1541 	amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
1542 }
1543 
1544 static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
1545 					    unsigned vmid, uint64_t pd_addr)
1546 {
1547 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1548 	uint32_t data0, data1, mask;
1549 
1550 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1551 
1552 	/* wait for register write */
1553 	data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
1554 	data1 = lower_32_bits(pd_addr);
1555 	mask = 0xffffffff;
1556 	vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
1557 }
1558 
1559 static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
1560 					uint32_t reg, uint32_t val)
1561 {
1562 	struct amdgpu_device *adev = ring->adev;
1563 
1564 	amdgpu_ring_write(ring,
1565 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1566 	amdgpu_ring_write(ring, reg << 2);
1567 	amdgpu_ring_write(ring,
1568 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1569 	amdgpu_ring_write(ring, val);
1570 	amdgpu_ring_write(ring,
1571 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1572 	amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
1573 }
1574 
1575 /**
1576  * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
1577  *
1578  * @ring: amdgpu_ring pointer
1579  *
1580  * Returns the current hardware enc read pointer
1581  */
1582 static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
1583 {
1584 	struct amdgpu_device *adev = ring->adev;
1585 
1586 	if (ring == &adev->vcn.inst->ring_enc[0])
1587 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
1588 	else
1589 		return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
1590 }
1591 
1592  /**
1593  * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
1594  *
1595  * @ring: amdgpu_ring pointer
1596  *
1597  * Returns the current hardware enc write pointer
1598  */
1599 static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
1600 {
1601 	struct amdgpu_device *adev = ring->adev;
1602 
1603 	if (ring == &adev->vcn.inst->ring_enc[0])
1604 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1605 	else
1606 		return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1607 }
1608 
1609  /**
1610  * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
1611  *
1612  * @ring: amdgpu_ring pointer
1613  *
1614  * Commits the enc write pointer to the hardware
1615  */
1616 static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
1617 {
1618 	struct amdgpu_device *adev = ring->adev;
1619 
1620 	if (ring == &adev->vcn.inst->ring_enc[0])
1621 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
1622 			lower_32_bits(ring->wptr));
1623 	else
1624 		WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
1625 			lower_32_bits(ring->wptr));
1626 }
1627 
1628 /**
1629  * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
1630  *
1631  * @ring: amdgpu_ring pointer
1632  * @addr: address
1633  * @seq: sequence number
1634  * @flags: fence related flags
1635  *
1636  * Write enc a fence and a trap command to the ring.
1637  */
1638 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1639 			u64 seq, unsigned flags)
1640 {
1641 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1642 
1643 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1644 	amdgpu_ring_write(ring, addr);
1645 	amdgpu_ring_write(ring, upper_32_bits(addr));
1646 	amdgpu_ring_write(ring, seq);
1647 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1648 }
1649 
1650 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1651 {
1652 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1653 }
1654 
1655 /**
1656  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1657  *
1658  * @ring: amdgpu_ring pointer
1659  * @job: job to retrive vmid from
1660  * @ib: indirect buffer to execute
1661  * @flags: unused
1662  *
1663  * Write enc ring commands to execute the indirect buffer
1664  */
1665 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1666 					struct amdgpu_job *job,
1667 					struct amdgpu_ib *ib,
1668 					uint32_t flags)
1669 {
1670 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1671 
1672 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1673 	amdgpu_ring_write(ring, vmid);
1674 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1675 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1676 	amdgpu_ring_write(ring, ib->length_dw);
1677 }
1678 
1679 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1680 					    uint32_t reg, uint32_t val,
1681 					    uint32_t mask)
1682 {
1683 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1684 	amdgpu_ring_write(ring, reg << 2);
1685 	amdgpu_ring_write(ring, mask);
1686 	amdgpu_ring_write(ring, val);
1687 }
1688 
1689 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1690 					    unsigned int vmid, uint64_t pd_addr)
1691 {
1692 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1693 
1694 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1695 
1696 	/* wait for reg writes */
1697 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
1698 					vmid * hub->ctx_addr_distance,
1699 					lower_32_bits(pd_addr), 0xffffffff);
1700 }
1701 
1702 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1703 					uint32_t reg, uint32_t val)
1704 {
1705 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1706 	amdgpu_ring_write(ring,	reg << 2);
1707 	amdgpu_ring_write(ring, val);
1708 }
1709 
1710 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1711 					struct amdgpu_irq_src *source,
1712 					unsigned type,
1713 					enum amdgpu_interrupt_state state)
1714 {
1715 	return 0;
1716 }
1717 
1718 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1719 				      struct amdgpu_irq_src *source,
1720 				      struct amdgpu_iv_entry *entry)
1721 {
1722 	DRM_DEBUG("IH: VCN TRAP\n");
1723 
1724 	switch (entry->src_id) {
1725 	case 124:
1726 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1727 		break;
1728 	case 119:
1729 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1730 		break;
1731 	case 120:
1732 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1733 		break;
1734 	default:
1735 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1736 			  entry->src_id, entry->src_data[0]);
1737 		break;
1738 	}
1739 
1740 	return 0;
1741 }
1742 
1743 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1744 {
1745 	struct amdgpu_device *adev = ring->adev;
1746 	int i;
1747 
1748 	WARN_ON(ring->wptr % 2 || count % 2);
1749 
1750 	for (i = 0; i < count / 2; i++) {
1751 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1752 		amdgpu_ring_write(ring, 0);
1753 	}
1754 }
1755 
1756 static int vcn_v1_0_set_powergating_state(void *handle,
1757 					  enum amd_powergating_state state)
1758 {
1759 	/* This doesn't actually powergate the VCN block.
1760 	 * That's done in the dpm code via the SMC.  This
1761 	 * just re-inits the block as necessary.  The actual
1762 	 * gating still happens in the dpm code.  We should
1763 	 * revisit this when there is a cleaner line between
1764 	 * the smc and the hw blocks
1765 	 */
1766 	int ret;
1767 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1768 
1769 	if(state == adev->vcn.cur_state)
1770 		return 0;
1771 
1772 	if (state == AMD_PG_STATE_GATE)
1773 		ret = vcn_v1_0_stop(adev);
1774 	else
1775 		ret = vcn_v1_0_start(adev);
1776 
1777 	if(!ret)
1778 		adev->vcn.cur_state = state;
1779 	return ret;
1780 }
1781 
1782 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1783 {
1784 	struct amdgpu_device *adev =
1785 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1786 	unsigned int fences = 0, i;
1787 
1788 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1789 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1790 
1791 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1792 		struct dpg_pause_state new_state;
1793 
1794 		if (fences)
1795 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1796 		else
1797 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1798 
1799 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1800 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1801 		else
1802 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1803 
1804 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1805 	}
1806 
1807 	fences += amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec);
1808 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1809 
1810 	if (fences == 0) {
1811 		amdgpu_gfx_off_ctrl(adev, true);
1812 		if (adev->pm.dpm_enabled)
1813 			amdgpu_dpm_enable_uvd(adev, false);
1814 		else
1815 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1816 			       AMD_PG_STATE_GATE);
1817 	} else {
1818 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1819 	}
1820 }
1821 
1822 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1823 {
1824 	struct	amdgpu_device *adev = ring->adev;
1825 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1826 
1827 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
1828 
1829 	if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec))
1830 		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
1831 
1832 	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
1833 
1834 }
1835 
1836 void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
1837 {
1838 	struct amdgpu_device *adev = ring->adev;
1839 
1840 	if (set_clocks) {
1841 		amdgpu_gfx_off_ctrl(adev, false);
1842 		if (adev->pm.dpm_enabled)
1843 			amdgpu_dpm_enable_uvd(adev, true);
1844 		else
1845 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1846 			       AMD_PG_STATE_UNGATE);
1847 	}
1848 
1849 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1850 		struct dpg_pause_state new_state;
1851 		unsigned int fences = 0, i;
1852 
1853 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1854 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1855 
1856 		if (fences)
1857 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1858 		else
1859 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1860 
1861 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1862 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1863 		else
1864 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1865 
1866 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1867 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1868 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1869 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1870 
1871 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1872 	}
1873 }
1874 
1875 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
1876 {
1877 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1878 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
1879 }
1880 
1881 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1882 	.name = "vcn_v1_0",
1883 	.early_init = vcn_v1_0_early_init,
1884 	.late_init = NULL,
1885 	.sw_init = vcn_v1_0_sw_init,
1886 	.sw_fini = vcn_v1_0_sw_fini,
1887 	.hw_init = vcn_v1_0_hw_init,
1888 	.hw_fini = vcn_v1_0_hw_fini,
1889 	.suspend = vcn_v1_0_suspend,
1890 	.resume = vcn_v1_0_resume,
1891 	.is_idle = vcn_v1_0_is_idle,
1892 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1893 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1894 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1895 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1896 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1897 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1898 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1899 };
1900 
1901 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1902 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1903 	.align_mask = 0xf,
1904 	.support_64bit_ptrs = false,
1905 	.no_user_fence = true,
1906 	.vmhub = AMDGPU_MMHUB_0,
1907 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1908 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1909 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1910 	.emit_frame_size =
1911 		6 + 6 + /* hdp invalidate / flush */
1912 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1913 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1914 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1915 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1916 		6,
1917 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1918 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1919 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1920 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1921 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1922 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1923 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
1924 	.insert_start = vcn_v1_0_dec_ring_insert_start,
1925 	.insert_end = vcn_v1_0_dec_ring_insert_end,
1926 	.pad_ib = amdgpu_ring_generic_pad_ib,
1927 	.begin_use = vcn_v1_0_ring_begin_use,
1928 	.end_use = vcn_v1_0_ring_end_use,
1929 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
1930 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
1931 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1932 };
1933 
1934 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
1935 	.type = AMDGPU_RING_TYPE_VCN_ENC,
1936 	.align_mask = 0x3f,
1937 	.nop = VCN_ENC_CMD_NO_OP,
1938 	.support_64bit_ptrs = false,
1939 	.no_user_fence = true,
1940 	.vmhub = AMDGPU_MMHUB_0,
1941 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
1942 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
1943 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
1944 	.emit_frame_size =
1945 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1946 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
1947 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
1948 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
1949 		1, /* vcn_v1_0_enc_ring_insert_end */
1950 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
1951 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
1952 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
1953 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
1954 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
1955 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
1956 	.insert_nop = amdgpu_ring_insert_nop,
1957 	.insert_end = vcn_v1_0_enc_ring_insert_end,
1958 	.pad_ib = amdgpu_ring_generic_pad_ib,
1959 	.begin_use = vcn_v1_0_ring_begin_use,
1960 	.end_use = vcn_v1_0_ring_end_use,
1961 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
1962 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
1963 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1964 };
1965 
1966 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
1967 {
1968 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
1969 	DRM_INFO("VCN decode is enabled in VM mode\n");
1970 }
1971 
1972 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
1973 {
1974 	int i;
1975 
1976 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1977 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
1978 
1979 	DRM_INFO("VCN encode is enabled in VM mode\n");
1980 }
1981 
1982 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
1983 	.set = vcn_v1_0_set_interrupt_state,
1984 	.process = vcn_v1_0_process_interrupt,
1985 };
1986 
1987 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
1988 {
1989 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
1990 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
1991 }
1992 
1993 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
1994 {
1995 		.type = AMD_IP_BLOCK_TYPE_VCN,
1996 		.major = 1,
1997 		.minor = 0,
1998 		.rev = 0,
1999 		.funcs = &vcn_v1_0_ip_funcs,
2000 };
2001