xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c (revision 9b358af7)
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 		DRM_INFO("PSP loading 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 	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
235 		RREG32_SOC15(VCN, 0, mmUVD_STATUS))
236 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
237 
238 	return 0;
239 }
240 
241 /**
242  * vcn_v1_0_suspend - suspend VCN block
243  *
244  * @handle: amdgpu_device pointer
245  *
246  * HW fini and suspend VCN block
247  */
248 static int vcn_v1_0_suspend(void *handle)
249 {
250 	int r;
251 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
252 
253 	r = vcn_v1_0_hw_fini(adev);
254 	if (r)
255 		return r;
256 
257 	r = amdgpu_vcn_suspend(adev);
258 
259 	return r;
260 }
261 
262 /**
263  * vcn_v1_0_resume - resume VCN block
264  *
265  * @handle: amdgpu_device pointer
266  *
267  * Resume firmware and hw init VCN block
268  */
269 static int vcn_v1_0_resume(void *handle)
270 {
271 	int r;
272 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
273 
274 	r = amdgpu_vcn_resume(adev);
275 	if (r)
276 		return r;
277 
278 	r = vcn_v1_0_hw_init(adev);
279 
280 	return r;
281 }
282 
283 /**
284  * vcn_v1_0_mc_resume_spg_mode - memory controller programming
285  *
286  * @adev: amdgpu_device pointer
287  *
288  * Let the VCN memory controller know it's offsets
289  */
290 static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
291 {
292 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
293 	uint32_t offset;
294 
295 	/* cache window 0: fw */
296 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
297 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
298 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
299 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
300 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
301 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
302 		offset = 0;
303 	} else {
304 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
305 			lower_32_bits(adev->vcn.inst->gpu_addr));
306 		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
307 			upper_32_bits(adev->vcn.inst->gpu_addr));
308 		offset = size;
309 		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
310 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
311 	}
312 
313 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
314 
315 	/* cache window 1: stack */
316 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
317 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset));
318 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
319 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset));
320 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
321 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);
322 
323 	/* cache window 2: context */
324 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
325 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
326 	WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
327 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
328 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
329 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);
330 
331 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
332 			adev->gfx.config.gb_addr_config);
333 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
334 			adev->gfx.config.gb_addr_config);
335 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
336 			adev->gfx.config.gb_addr_config);
337 	WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
338 			adev->gfx.config.gb_addr_config);
339 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
340 			adev->gfx.config.gb_addr_config);
341 	WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
342 			adev->gfx.config.gb_addr_config);
343 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
344 			adev->gfx.config.gb_addr_config);
345 	WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
346 			adev->gfx.config.gb_addr_config);
347 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
348 			adev->gfx.config.gb_addr_config);
349 	WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
350 			adev->gfx.config.gb_addr_config);
351 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
352 			adev->gfx.config.gb_addr_config);
353 	WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
354 			adev->gfx.config.gb_addr_config);
355 }
356 
357 static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
358 {
359 	uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
360 	uint32_t offset;
361 
362 	/* cache window 0: fw */
363 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
364 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
365 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
366 			     0xFFFFFFFF, 0);
367 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
368 			     (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
369 			     0xFFFFFFFF, 0);
370 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
371 			     0xFFFFFFFF, 0);
372 		offset = 0;
373 	} else {
374 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
375 			lower_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
376 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
377 			upper_32_bits(adev->vcn.inst->gpu_addr), 0xFFFFFFFF, 0);
378 		offset = size;
379 		WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
380 			     AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
381 	}
382 
383 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);
384 
385 	/* cache window 1: stack */
386 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
387 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
388 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
389 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset), 0xFFFFFFFF, 0);
390 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
391 			     0xFFFFFFFF, 0);
392 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
393 			     0xFFFFFFFF, 0);
394 
395 	/* cache window 2: context */
396 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
397 		     lower_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
398 			     0xFFFFFFFF, 0);
399 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
400 		     upper_32_bits(adev->vcn.inst->gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
401 			     0xFFFFFFFF, 0);
402 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
403 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
404 			     0xFFFFFFFF, 0);
405 
406 	/* VCN global tiling registers */
407 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
408 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
409 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
410 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
411 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
412 			adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
413 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
414 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
415 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
416 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
417 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
418 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
419 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
420 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
421 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
422 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
423 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
424 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
425 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
426 		adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
427 }
428 
429 /**
430  * vcn_v1_0_disable_clock_gating - disable VCN clock gating
431  *
432  * @adev: amdgpu_device pointer
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  *
560  * Enable clock gating for VCN block
561  */
562 static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
563 {
564 	uint32_t data = 0;
565 
566 	/* enable JPEG CGC */
567 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
568 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
569 		data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
570 	else
571 		data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
572 	data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
573 	data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
574 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);
575 
576 	data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
577 	data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
578 	WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);
579 
580 	/* enable UVD CGC */
581 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
582 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
583 		data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
584 	else
585 		data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
586 	data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
587 	data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
588 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
589 
590 	data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
591 	data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
592 		| UVD_CGC_CTRL__UDEC_CM_MODE_MASK
593 		| UVD_CGC_CTRL__UDEC_IT_MODE_MASK
594 		| UVD_CGC_CTRL__UDEC_DB_MODE_MASK
595 		| UVD_CGC_CTRL__UDEC_MP_MODE_MASK
596 		| UVD_CGC_CTRL__SYS_MODE_MASK
597 		| UVD_CGC_CTRL__UDEC_MODE_MASK
598 		| UVD_CGC_CTRL__MPEG2_MODE_MASK
599 		| UVD_CGC_CTRL__REGS_MODE_MASK
600 		| UVD_CGC_CTRL__RBC_MODE_MASK
601 		| UVD_CGC_CTRL__LMI_MC_MODE_MASK
602 		| UVD_CGC_CTRL__LMI_UMC_MODE_MASK
603 		| UVD_CGC_CTRL__IDCT_MODE_MASK
604 		| UVD_CGC_CTRL__MPRD_MODE_MASK
605 		| UVD_CGC_CTRL__MPC_MODE_MASK
606 		| UVD_CGC_CTRL__LBSI_MODE_MASK
607 		| UVD_CGC_CTRL__LRBBM_MODE_MASK
608 		| UVD_CGC_CTRL__WCB_MODE_MASK
609 		| UVD_CGC_CTRL__VCPU_MODE_MASK
610 		| UVD_CGC_CTRL__SCPU_MODE_MASK);
611 	WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);
612 
613 	data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
614 	data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
615 		| UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
616 		| UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
617 		| UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
618 		| UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
619 		| UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
620 		| UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
621 		| UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
622 		| UVD_SUVD_CGC_CTRL__IME_MODE_MASK
623 		| UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
624 	WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
625 }
626 
627 static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
628 {
629 	uint32_t reg_data = 0;
630 
631 	/* disable JPEG CGC */
632 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
633 		reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
634 	else
635 		reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
636 	reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
637 	reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
638 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
639 
640 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
641 
642 	/* enable sw clock gating control */
643 	if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
644 		reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
645 	else
646 		reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
647 	reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
648 	reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
649 	reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
650 		 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
651 		 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
652 		 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
653 		 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
654 		 UVD_CGC_CTRL__SYS_MODE_MASK |
655 		 UVD_CGC_CTRL__UDEC_MODE_MASK |
656 		 UVD_CGC_CTRL__MPEG2_MODE_MASK |
657 		 UVD_CGC_CTRL__REGS_MODE_MASK |
658 		 UVD_CGC_CTRL__RBC_MODE_MASK |
659 		 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
660 		 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
661 		 UVD_CGC_CTRL__IDCT_MODE_MASK |
662 		 UVD_CGC_CTRL__MPRD_MODE_MASK |
663 		 UVD_CGC_CTRL__MPC_MODE_MASK |
664 		 UVD_CGC_CTRL__LBSI_MODE_MASK |
665 		 UVD_CGC_CTRL__LRBBM_MODE_MASK |
666 		 UVD_CGC_CTRL__WCB_MODE_MASK |
667 		 UVD_CGC_CTRL__VCPU_MODE_MASK |
668 		 UVD_CGC_CTRL__SCPU_MODE_MASK);
669 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
670 
671 	/* turn off clock gating */
672 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);
673 
674 	/* turn on SUVD clock gating */
675 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);
676 
677 	/* turn on sw mode in UVD_SUVD_CGC_CTRL */
678 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
679 }
680 
681 static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
682 {
683 	uint32_t data = 0;
684 
685 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
686 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
687 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
688 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
689 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
690 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
691 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
692 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
693 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
694 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
695 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
696 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
697 
698 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
699 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF);
700 	} else {
701 		data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
702 			| 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
703 			| 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
704 			| 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
705 			| 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
706 			| 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
707 			| 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
708 			| 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
709 			| 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
710 			| 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
711 			| 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
712 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
713 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF);
714 	}
715 
716 	/* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */
717 
718 	data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
719 	data &= ~0x103;
720 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
721 		data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;
722 
723 	WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
724 }
725 
726 static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
727 {
728 	uint32_t data = 0;
729 
730 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
731 		/* Before power off, this indicator has to be turned on */
732 		data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
733 		data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
734 		data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
735 		WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
736 
737 
738 		data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
739 			| 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
740 			| 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
741 			| 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
742 			| 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
743 			| 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
744 			| 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
745 			| 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
746 			| 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
747 			| 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
748 			| 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
749 
750 		WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
751 
752 		data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
753 			| 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
754 			| 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
755 			| 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
756 			| 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
757 			| 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
758 			| 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
759 			| 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
760 			| 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
761 			| 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
762 			| 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
763 		SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF);
764 	}
765 }
766 
767 /**
768  * vcn_v1_0_start - start VCN block
769  *
770  * @adev: amdgpu_device pointer
771  *
772  * Setup and start the VCN block
773  */
774 static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
775 {
776 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
777 	uint32_t rb_bufsz, tmp;
778 	uint32_t lmi_swap_cntl;
779 	int i, j, r;
780 
781 	/* disable byte swapping */
782 	lmi_swap_cntl = 0;
783 
784 	vcn_1_0_disable_static_power_gating(adev);
785 
786 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
787 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
788 
789 	/* disable clock gating */
790 	vcn_v1_0_disable_clock_gating(adev);
791 
792 	/* disable interupt */
793 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
794 			~UVD_MASTINT_EN__VCPU_EN_MASK);
795 
796 	/* initialize VCN memory controller */
797 	tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
798 	WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp		|
799 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK	|
800 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK			|
801 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK		|
802 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);
803 
804 #ifdef __BIG_ENDIAN
805 	/* swap (8 in 32) RB and IB */
806 	lmi_swap_cntl = 0xa;
807 #endif
808 	WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
809 
810 	tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
811 	tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
812 	tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
813 	WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);
814 
815 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
816 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
817 		(0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
818 		(0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
819 		(0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));
820 
821 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
822 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
823 		(0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
824 		(0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
825 		(0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));
826 
827 	WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
828 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
829 		(0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
830 		(0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));
831 
832 	vcn_v1_0_mc_resume_spg_mode(adev);
833 
834 	WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK_1_0, 0x10);
835 	WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0,
836 		RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK_1_0) | 0x3);
837 
838 	/* enable VCPU clock */
839 	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
840 
841 	/* boot up the VCPU */
842 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
843 			~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
844 
845 	/* enable UMC */
846 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
847 			~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
848 
849 	tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
850 	tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
851 	tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
852 	WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);
853 
854 	for (i = 0; i < 10; ++i) {
855 		uint32_t status;
856 
857 		for (j = 0; j < 100; ++j) {
858 			status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
859 			if (status & UVD_STATUS__IDLE)
860 				break;
861 			mdelay(10);
862 		}
863 		r = 0;
864 		if (status & UVD_STATUS__IDLE)
865 			break;
866 
867 		DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
868 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
869 				UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
870 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
871 		mdelay(10);
872 		WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
873 				~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
874 		mdelay(10);
875 		r = -1;
876 	}
877 
878 	if (r) {
879 		DRM_ERROR("VCN decode not responding, giving up!!!\n");
880 		return r;
881 	}
882 	/* enable master interrupt */
883 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
884 		UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
885 
886 	/* enable system interrupt for JRBC, TODO: move to set interrupt*/
887 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
888 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
889 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
890 
891 	/* clear the busy bit of UVD_STATUS */
892 	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
893 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
894 
895 	/* force RBC into idle state */
896 	rb_bufsz = order_base_2(ring->ring_size);
897 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
898 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
899 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
900 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
901 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
902 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
903 
904 	/* set the write pointer delay */
905 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
906 
907 	/* set the wb address */
908 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
909 			(upper_32_bits(ring->gpu_addr) >> 2));
910 
911 	/* program the RB_BASE for ring buffer */
912 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
913 			lower_32_bits(ring->gpu_addr));
914 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
915 			upper_32_bits(ring->gpu_addr));
916 
917 	/* Initialize the ring buffer's read and write pointers */
918 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
919 
920 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
921 
922 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
923 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
924 			lower_32_bits(ring->wptr));
925 
926 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
927 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
928 
929 	ring = &adev->vcn.inst->ring_enc[0];
930 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
931 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
932 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
933 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
934 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
935 
936 	ring = &adev->vcn.inst->ring_enc[1];
937 	WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
938 	WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
939 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
940 	WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
941 	WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
942 
943 	jpeg_v1_0_start(adev, 0);
944 
945 	return 0;
946 }
947 
948 static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
949 {
950 	struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
951 	uint32_t rb_bufsz, tmp;
952 	uint32_t lmi_swap_cntl;
953 
954 	/* disable byte swapping */
955 	lmi_swap_cntl = 0;
956 
957 	vcn_1_0_enable_static_power_gating(adev);
958 
959 	/* enable dynamic power gating mode */
960 	tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
961 	tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
962 	tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
963 	WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);
964 
965 	/* enable clock gating */
966 	vcn_v1_0_clock_gating_dpg_mode(adev, 0);
967 
968 	/* enable VCPU clock */
969 	tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
970 	tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
971 	tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
972 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);
973 
974 	/* disable interupt */
975 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
976 			0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
977 
978 	/* initialize VCN memory controller */
979 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
980 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
981 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
982 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
983 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
984 		UVD_LMI_CTRL__REQ_MODE_MASK |
985 		UVD_LMI_CTRL__CRC_RESET_MASK |
986 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
987 		0x00100000L, 0xFFFFFFFF, 0);
988 
989 #ifdef __BIG_ENDIAN
990 	/* swap (8 in 32) RB and IB */
991 	lmi_swap_cntl = 0xa;
992 #endif
993 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);
994 
995 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_CNTL,
996 		0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);
997 
998 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXA0,
999 		((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
1000 		 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
1001 		 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
1002 		 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);
1003 
1004 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUXB0,
1005 		((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
1006 		 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
1007 		 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
1008 		 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);
1009 
1010 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MPC_SET_MUX,
1011 		((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
1012 		 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
1013 		 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);
1014 
1015 	vcn_v1_0_mc_resume_dpg_mode(adev);
1016 
1017 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
1018 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
1019 
1020 	/* boot up the VCPU */
1021 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
1022 
1023 	/* enable UMC */
1024 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL2,
1025 		0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
1026 		0xFFFFFFFF, 0);
1027 
1028 	/* enable master interrupt */
1029 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_MASTINT_EN,
1030 			UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
1031 
1032 	vcn_v1_0_clock_gating_dpg_mode(adev, 1);
1033 	/* setup mmUVD_LMI_CTRL */
1034 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_LMI_CTRL,
1035 		(8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
1036 		UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
1037 		UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
1038 		UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
1039 		UVD_LMI_CTRL__REQ_MODE_MASK |
1040 		UVD_LMI_CTRL__CRC_RESET_MASK |
1041 		UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
1042 		0x00100000L, 0xFFFFFFFF, 1);
1043 
1044 	tmp = adev->gfx.config.gb_addr_config;
1045 	/* setup VCN global tiling registers */
1046 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1047 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
1048 
1049 	/* enable System Interrupt for JRBC */
1050 	WREG32_SOC15_DPG_MODE_1_0(UVD, 0, mmUVD_SYS_INT_EN,
1051 									UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);
1052 
1053 	/* force RBC into idle state */
1054 	rb_bufsz = order_base_2(ring->ring_size);
1055 	tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
1056 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
1057 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
1058 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
1059 	tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
1060 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);
1061 
1062 	/* set the write pointer delay */
1063 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
1064 
1065 	/* set the wb address */
1066 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
1067 								(upper_32_bits(ring->gpu_addr) >> 2));
1068 
1069 	/* program the RB_BASE for ring buffer */
1070 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
1071 								lower_32_bits(ring->gpu_addr));
1072 	WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
1073 								upper_32_bits(ring->gpu_addr));
1074 
1075 	/* Initialize the ring buffer's read and write pointers */
1076 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);
1077 
1078 	WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);
1079 
1080 	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1081 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1082 								lower_32_bits(ring->wptr));
1083 
1084 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
1085 			~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
1086 
1087 	jpeg_v1_0_start(adev, 1);
1088 
1089 	return 0;
1090 }
1091 
1092 static int vcn_v1_0_start(struct amdgpu_device *adev)
1093 {
1094 	int r;
1095 
1096 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1097 		r = vcn_v1_0_start_dpg_mode(adev);
1098 	else
1099 		r = vcn_v1_0_start_spg_mode(adev);
1100 	return r;
1101 }
1102 
1103 /**
1104  * vcn_v1_0_stop - stop VCN block
1105  *
1106  * @adev: amdgpu_device pointer
1107  *
1108  * stop the VCN block
1109  */
1110 static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
1111 {
1112 	int tmp;
1113 
1114 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7);
1115 
1116 	tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
1117 		UVD_LMI_STATUS__READ_CLEAN_MASK |
1118 		UVD_LMI_STATUS__WRITE_CLEAN_MASK |
1119 		UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
1120 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1121 
1122 	/* put VCPU into reset */
1123 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1124 		UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
1125 		~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
1126 
1127 	tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
1128 		UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
1129 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp);
1130 
1131 	/* disable VCPU clock */
1132 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
1133 		~UVD_VCPU_CNTL__CLK_EN_MASK);
1134 
1135 	/* reset LMI UMC/LMI */
1136 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1137 		UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
1138 		~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
1139 
1140 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
1141 		UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
1142 		~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
1143 
1144 	WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);
1145 
1146 	vcn_v1_0_enable_clock_gating(adev);
1147 	vcn_1_0_enable_static_power_gating(adev);
1148 	return 0;
1149 }
1150 
1151 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
1152 {
1153 	uint32_t tmp;
1154 
1155 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
1156 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1157 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1158 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1159 
1160 	/* wait for read ptr to be equal to write ptr */
1161 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
1162 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF);
1163 
1164 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
1165 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF);
1166 
1167 	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
1168 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF);
1169 
1170 	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
1171 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF);
1172 
1173 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1174 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1175 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1176 
1177 	/* disable dynamic power gating mode */
1178 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
1179 			~UVD_POWER_STATUS__UVD_PG_MODE_MASK);
1180 
1181 	return 0;
1182 }
1183 
1184 static int vcn_v1_0_stop(struct amdgpu_device *adev)
1185 {
1186 	int r;
1187 
1188 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1189 		r = vcn_v1_0_stop_dpg_mode(adev);
1190 	else
1191 		r = vcn_v1_0_stop_spg_mode(adev);
1192 
1193 	return r;
1194 }
1195 
1196 static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
1197 				int inst_idx, struct dpg_pause_state *new_state)
1198 {
1199 	int ret_code;
1200 	uint32_t reg_data = 0;
1201 	uint32_t reg_data2 = 0;
1202 	struct amdgpu_ring *ring;
1203 
1204 	/* pause/unpause if state is changed */
1205 	if (adev->vcn.inst[inst_idx].pause_state.fw_based != new_state->fw_based) {
1206 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1207 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1208 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1209 			new_state->fw_based, new_state->jpeg);
1210 
1211 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1212 			(~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1213 
1214 		if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
1215 			ret_code = 0;
1216 
1217 			if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
1218 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1219 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1220 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1221 
1222 			if (!ret_code) {
1223 				/* pause DPG non-jpeg */
1224 				reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1225 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1226 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1227 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
1228 						   UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
1229 
1230 				/* Restore */
1231 				ring = &adev->vcn.inst->ring_enc[0];
1232 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
1233 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
1234 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);
1235 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
1236 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
1237 
1238 				ring = &adev->vcn.inst->ring_enc[1];
1239 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
1240 				WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
1241 				WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);
1242 				WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
1243 				WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
1244 
1245 				ring = &adev->vcn.inst->ring_dec;
1246 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1247 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1248 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1249 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1250 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1251 			}
1252 		} else {
1253 			/* unpause dpg non-jpeg, no need to wait */
1254 			reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
1255 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1256 		}
1257 		adev->vcn.inst[inst_idx].pause_state.fw_based = new_state->fw_based;
1258 	}
1259 
1260 	/* pause/unpause if state is changed */
1261 	if (adev->vcn.inst[inst_idx].pause_state.jpeg != new_state->jpeg) {
1262 		DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
1263 			adev->vcn.inst[inst_idx].pause_state.fw_based,
1264 			adev->vcn.inst[inst_idx].pause_state.jpeg,
1265 			new_state->fw_based, new_state->jpeg);
1266 
1267 		reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
1268 			(~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1269 
1270 		if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
1271 			ret_code = 0;
1272 
1273 			if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
1274 				ret_code = SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1275 						   UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
1276 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1277 
1278 			if (!ret_code) {
1279 				/* Make sure JPRG Snoop is disabled before sending the pause */
1280 				reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
1281 				reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
1282 				WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
1283 
1284 				/* pause DPG jpeg */
1285 				reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1286 				WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1287 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
1288 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
1289 							UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
1290 
1291 				/* Restore */
1292 				ring = &adev->jpeg.inst->ring_dec;
1293 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
1294 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1295 							UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
1296 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1297 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
1298 							lower_32_bits(ring->gpu_addr));
1299 				WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
1300 							upper_32_bits(ring->gpu_addr));
1301 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
1302 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
1303 				WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL,
1304 							UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
1305 
1306 				ring = &adev->vcn.inst->ring_dec;
1307 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
1308 						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
1309 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
1310 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
1311 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
1312 			}
1313 		} else {
1314 			/* unpause dpg jpeg, no need to wait */
1315 			reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
1316 			WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
1317 		}
1318 		adev->vcn.inst[inst_idx].pause_state.jpeg = new_state->jpeg;
1319 	}
1320 
1321 	return 0;
1322 }
1323 
1324 static bool vcn_v1_0_is_idle(void *handle)
1325 {
1326 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1327 
1328 	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
1329 }
1330 
1331 static int vcn_v1_0_wait_for_idle(void *handle)
1332 {
1333 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1334 	int ret;
1335 
1336 	ret = SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
1337 		UVD_STATUS__IDLE);
1338 
1339 	return ret;
1340 }
1341 
1342 static int vcn_v1_0_set_clockgating_state(void *handle,
1343 					  enum amd_clockgating_state state)
1344 {
1345 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1346 	bool enable = (state == AMD_CG_STATE_GATE);
1347 
1348 	if (enable) {
1349 		/* wait for STATUS to clear */
1350 		if (!vcn_v1_0_is_idle(handle))
1351 			return -EBUSY;
1352 		vcn_v1_0_enable_clock_gating(adev);
1353 	} else {
1354 		/* disable HW gating and enable Sw gating */
1355 		vcn_v1_0_disable_clock_gating(adev);
1356 	}
1357 	return 0;
1358 }
1359 
1360 /**
1361  * vcn_v1_0_dec_ring_get_rptr - get read pointer
1362  *
1363  * @ring: amdgpu_ring pointer
1364  *
1365  * Returns the current hardware read pointer
1366  */
1367 static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
1368 {
1369 	struct amdgpu_device *adev = ring->adev;
1370 
1371 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
1372 }
1373 
1374 /**
1375  * vcn_v1_0_dec_ring_get_wptr - get write pointer
1376  *
1377  * @ring: amdgpu_ring pointer
1378  *
1379  * Returns the current hardware write pointer
1380  */
1381 static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
1382 {
1383 	struct amdgpu_device *adev = ring->adev;
1384 
1385 	return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
1386 }
1387 
1388 /**
1389  * vcn_v1_0_dec_ring_set_wptr - set write pointer
1390  *
1391  * @ring: amdgpu_ring pointer
1392  *
1393  * Commits the write pointer to the hardware
1394  */
1395 static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
1396 {
1397 	struct amdgpu_device *adev = ring->adev;
1398 
1399 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
1400 		WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
1401 			lower_32_bits(ring->wptr) | 0x80000000);
1402 
1403 	WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
1404 }
1405 
1406 /**
1407  * vcn_v1_0_dec_ring_insert_start - insert a start command
1408  *
1409  * @ring: amdgpu_ring pointer
1410  *
1411  * Write a start command to the ring.
1412  */
1413 static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
1414 {
1415 	struct amdgpu_device *adev = ring->adev;
1416 
1417 	amdgpu_ring_write(ring,
1418 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1419 	amdgpu_ring_write(ring, 0);
1420 	amdgpu_ring_write(ring,
1421 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1422 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
1423 }
1424 
1425 /**
1426  * vcn_v1_0_dec_ring_insert_end - insert a end command
1427  *
1428  * @ring: amdgpu_ring pointer
1429  *
1430  * Write a end command to the ring.
1431  */
1432 static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
1433 {
1434 	struct amdgpu_device *adev = ring->adev;
1435 
1436 	amdgpu_ring_write(ring,
1437 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1438 	amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
1439 }
1440 
1441 /**
1442  * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
1443  *
1444  * @ring: amdgpu_ring pointer
1445  * @addr: address
1446  * @seq: sequence number
1447  * @flags: fence related flags
1448  *
1449  * Write a fence and a trap command to the ring.
1450  */
1451 static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
1452 				     unsigned flags)
1453 {
1454 	struct amdgpu_device *adev = ring->adev;
1455 
1456 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1457 
1458 	amdgpu_ring_write(ring,
1459 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
1460 	amdgpu_ring_write(ring, seq);
1461 	amdgpu_ring_write(ring,
1462 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1463 	amdgpu_ring_write(ring, addr & 0xffffffff);
1464 	amdgpu_ring_write(ring,
1465 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1466 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
1467 	amdgpu_ring_write(ring,
1468 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1469 	amdgpu_ring_write(ring, VCN_DEC_CMD_FENCE << 1);
1470 
1471 	amdgpu_ring_write(ring,
1472 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
1473 	amdgpu_ring_write(ring, 0);
1474 	amdgpu_ring_write(ring,
1475 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
1476 	amdgpu_ring_write(ring, 0);
1477 	amdgpu_ring_write(ring,
1478 		PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
1479 	amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
1480 }
1481 
1482 /**
1483  * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
1484  *
1485  * @ring: amdgpu_ring pointer
1486  * @job: job to retrieve vmid from
1487  * @ib: indirect buffer to execute
1488  * @flags: unused
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 * hub->ctx_addr_distance;
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  * @addr: address
1624  * @seq: sequence number
1625  * @flags: fence related flags
1626  *
1627  * Write enc a fence and a trap command to the ring.
1628  */
1629 static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
1630 			u64 seq, unsigned flags)
1631 {
1632 	WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
1633 
1634 	amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
1635 	amdgpu_ring_write(ring, addr);
1636 	amdgpu_ring_write(ring, upper_32_bits(addr));
1637 	amdgpu_ring_write(ring, seq);
1638 	amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
1639 }
1640 
1641 static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
1642 {
1643 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
1644 }
1645 
1646 /**
1647  * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
1648  *
1649  * @ring: amdgpu_ring pointer
1650  * @job: job to retrive vmid from
1651  * @ib: indirect buffer to execute
1652  * @flags: unused
1653  *
1654  * Write enc ring commands to execute the indirect buffer
1655  */
1656 static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
1657 					struct amdgpu_job *job,
1658 					struct amdgpu_ib *ib,
1659 					uint32_t flags)
1660 {
1661 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
1662 
1663 	amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
1664 	amdgpu_ring_write(ring, vmid);
1665 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
1666 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
1667 	amdgpu_ring_write(ring, ib->length_dw);
1668 }
1669 
1670 static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
1671 					    uint32_t reg, uint32_t val,
1672 					    uint32_t mask)
1673 {
1674 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
1675 	amdgpu_ring_write(ring, reg << 2);
1676 	amdgpu_ring_write(ring, mask);
1677 	amdgpu_ring_write(ring, val);
1678 }
1679 
1680 static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
1681 					    unsigned int vmid, uint64_t pd_addr)
1682 {
1683 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
1684 
1685 	pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1686 
1687 	/* wait for reg writes */
1688 	vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 +
1689 					vmid * hub->ctx_addr_distance,
1690 					lower_32_bits(pd_addr), 0xffffffff);
1691 }
1692 
1693 static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
1694 					uint32_t reg, uint32_t val)
1695 {
1696 	amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
1697 	amdgpu_ring_write(ring,	reg << 2);
1698 	amdgpu_ring_write(ring, val);
1699 }
1700 
1701 static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
1702 					struct amdgpu_irq_src *source,
1703 					unsigned type,
1704 					enum amdgpu_interrupt_state state)
1705 {
1706 	return 0;
1707 }
1708 
1709 static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
1710 				      struct amdgpu_irq_src *source,
1711 				      struct amdgpu_iv_entry *entry)
1712 {
1713 	DRM_DEBUG("IH: VCN TRAP\n");
1714 
1715 	switch (entry->src_id) {
1716 	case 124:
1717 		amdgpu_fence_process(&adev->vcn.inst->ring_dec);
1718 		break;
1719 	case 119:
1720 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[0]);
1721 		break;
1722 	case 120:
1723 		amdgpu_fence_process(&adev->vcn.inst->ring_enc[1]);
1724 		break;
1725 	default:
1726 		DRM_ERROR("Unhandled interrupt: %d %d\n",
1727 			  entry->src_id, entry->src_data[0]);
1728 		break;
1729 	}
1730 
1731 	return 0;
1732 }
1733 
1734 static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
1735 {
1736 	struct amdgpu_device *adev = ring->adev;
1737 	int i;
1738 
1739 	WARN_ON(ring->wptr % 2 || count % 2);
1740 
1741 	for (i = 0; i < count / 2; i++) {
1742 		amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
1743 		amdgpu_ring_write(ring, 0);
1744 	}
1745 }
1746 
1747 static int vcn_v1_0_set_powergating_state(void *handle,
1748 					  enum amd_powergating_state state)
1749 {
1750 	/* This doesn't actually powergate the VCN block.
1751 	 * That's done in the dpm code via the SMC.  This
1752 	 * just re-inits the block as necessary.  The actual
1753 	 * gating still happens in the dpm code.  We should
1754 	 * revisit this when there is a cleaner line between
1755 	 * the smc and the hw blocks
1756 	 */
1757 	int ret;
1758 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1759 
1760 	if(state == adev->vcn.cur_state)
1761 		return 0;
1762 
1763 	if (state == AMD_PG_STATE_GATE)
1764 		ret = vcn_v1_0_stop(adev);
1765 	else
1766 		ret = vcn_v1_0_start(adev);
1767 
1768 	if(!ret)
1769 		adev->vcn.cur_state = state;
1770 	return ret;
1771 }
1772 
1773 static void vcn_v1_0_idle_work_handler(struct work_struct *work)
1774 {
1775 	struct amdgpu_device *adev =
1776 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
1777 	unsigned int fences = 0, i;
1778 
1779 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1780 		fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1781 
1782 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1783 		struct dpg_pause_state new_state;
1784 
1785 		if (fences)
1786 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1787 		else
1788 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1789 
1790 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1791 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1792 		else
1793 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1794 
1795 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1796 	}
1797 
1798 	fences += amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec);
1799 	fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_dec);
1800 
1801 	if (fences == 0) {
1802 		amdgpu_gfx_off_ctrl(adev, true);
1803 		if (adev->pm.dpm_enabled)
1804 			amdgpu_dpm_enable_uvd(adev, false);
1805 		else
1806 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1807 			       AMD_PG_STATE_GATE);
1808 	} else {
1809 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1810 	}
1811 }
1812 
1813 static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
1814 {
1815 	struct	amdgpu_device *adev = ring->adev;
1816 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
1817 
1818 	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
1819 
1820 	if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec))
1821 		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
1822 
1823 	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
1824 
1825 }
1826 
1827 void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
1828 {
1829 	struct amdgpu_device *adev = ring->adev;
1830 
1831 	if (set_clocks) {
1832 		amdgpu_gfx_off_ctrl(adev, false);
1833 		if (adev->pm.dpm_enabled)
1834 			amdgpu_dpm_enable_uvd(adev, true);
1835 		else
1836 			amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
1837 			       AMD_PG_STATE_UNGATE);
1838 	}
1839 
1840 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
1841 		struct dpg_pause_state new_state;
1842 		unsigned int fences = 0, i;
1843 
1844 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1845 			fences += amdgpu_fence_count_emitted(&adev->vcn.inst->ring_enc[i]);
1846 
1847 		if (fences)
1848 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1849 		else
1850 			new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
1851 
1852 		if (amdgpu_fence_count_emitted(&adev->jpeg.inst->ring_dec))
1853 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1854 		else
1855 			new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
1856 
1857 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
1858 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
1859 		else if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
1860 			new_state.jpeg = VCN_DPG_STATE__PAUSE;
1861 
1862 		adev->vcn.pause_dpg_mode(adev, 0, &new_state);
1863 	}
1864 }
1865 
1866 void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
1867 {
1868 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
1869 	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
1870 }
1871 
1872 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
1873 	.name = "vcn_v1_0",
1874 	.early_init = vcn_v1_0_early_init,
1875 	.late_init = NULL,
1876 	.sw_init = vcn_v1_0_sw_init,
1877 	.sw_fini = vcn_v1_0_sw_fini,
1878 	.hw_init = vcn_v1_0_hw_init,
1879 	.hw_fini = vcn_v1_0_hw_fini,
1880 	.suspend = vcn_v1_0_suspend,
1881 	.resume = vcn_v1_0_resume,
1882 	.is_idle = vcn_v1_0_is_idle,
1883 	.wait_for_idle = vcn_v1_0_wait_for_idle,
1884 	.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
1885 	.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
1886 	.soft_reset = NULL /* vcn_v1_0_soft_reset */,
1887 	.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
1888 	.set_clockgating_state = vcn_v1_0_set_clockgating_state,
1889 	.set_powergating_state = vcn_v1_0_set_powergating_state,
1890 };
1891 
1892 static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
1893 	.type = AMDGPU_RING_TYPE_VCN_DEC,
1894 	.align_mask = 0xf,
1895 	.support_64bit_ptrs = false,
1896 	.no_user_fence = true,
1897 	.vmhub = AMDGPU_MMHUB_0,
1898 	.get_rptr = vcn_v1_0_dec_ring_get_rptr,
1899 	.get_wptr = vcn_v1_0_dec_ring_get_wptr,
1900 	.set_wptr = vcn_v1_0_dec_ring_set_wptr,
1901 	.emit_frame_size =
1902 		6 + 6 + /* hdp invalidate / flush */
1903 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
1904 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
1905 		8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
1906 		14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
1907 		6,
1908 	.emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
1909 	.emit_ib = vcn_v1_0_dec_ring_emit_ib,
1910 	.emit_fence = vcn_v1_0_dec_ring_emit_fence,
1911 	.emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
1912 	.test_ring = amdgpu_vcn_dec_ring_test_ring,
1913 	.test_ib = amdgpu_vcn_dec_ring_test_ib,
1914 	.insert_nop = vcn_v1_0_dec_ring_insert_nop,
1915 	.insert_start = vcn_v1_0_dec_ring_insert_start,
1916 	.insert_end = vcn_v1_0_dec_ring_insert_end,
1917 	.pad_ib = amdgpu_ring_generic_pad_ib,
1918 	.begin_use = vcn_v1_0_ring_begin_use,
1919 	.end_use = vcn_v1_0_ring_end_use,
1920 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
1921 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
1922 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1923 };
1924 
1925 static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
1926 	.type = AMDGPU_RING_TYPE_VCN_ENC,
1927 	.align_mask = 0x3f,
1928 	.nop = VCN_ENC_CMD_NO_OP,
1929 	.support_64bit_ptrs = false,
1930 	.no_user_fence = true,
1931 	.vmhub = AMDGPU_MMHUB_0,
1932 	.get_rptr = vcn_v1_0_enc_ring_get_rptr,
1933 	.get_wptr = vcn_v1_0_enc_ring_get_wptr,
1934 	.set_wptr = vcn_v1_0_enc_ring_set_wptr,
1935 	.emit_frame_size =
1936 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1937 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
1938 		4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
1939 		5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
1940 		1, /* vcn_v1_0_enc_ring_insert_end */
1941 	.emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
1942 	.emit_ib = vcn_v1_0_enc_ring_emit_ib,
1943 	.emit_fence = vcn_v1_0_enc_ring_emit_fence,
1944 	.emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
1945 	.test_ring = amdgpu_vcn_enc_ring_test_ring,
1946 	.test_ib = amdgpu_vcn_enc_ring_test_ib,
1947 	.insert_nop = amdgpu_ring_insert_nop,
1948 	.insert_end = vcn_v1_0_enc_ring_insert_end,
1949 	.pad_ib = amdgpu_ring_generic_pad_ib,
1950 	.begin_use = vcn_v1_0_ring_begin_use,
1951 	.end_use = vcn_v1_0_ring_end_use,
1952 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
1953 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
1954 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
1955 };
1956 
1957 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
1958 {
1959 	adev->vcn.inst->ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
1960 	DRM_INFO("VCN decode is enabled in VM mode\n");
1961 }
1962 
1963 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
1964 {
1965 	int i;
1966 
1967 	for (i = 0; i < adev->vcn.num_enc_rings; ++i)
1968 		adev->vcn.inst->ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
1969 
1970 	DRM_INFO("VCN encode is enabled in VM mode\n");
1971 }
1972 
1973 static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
1974 	.set = vcn_v1_0_set_interrupt_state,
1975 	.process = vcn_v1_0_process_interrupt,
1976 };
1977 
1978 static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
1979 {
1980 	adev->vcn.inst->irq.num_types = adev->vcn.num_enc_rings + 2;
1981 	adev->vcn.inst->irq.funcs = &vcn_v1_0_irq_funcs;
1982 }
1983 
1984 const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
1985 {
1986 		.type = AMD_IP_BLOCK_TYPE_VCN,
1987 		.major = 1,
1988 		.minor = 0,
1989 		.rev = 0,
1990 		.funcs = &vcn_v1_0_ip_funcs,
1991 };
1992