xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c (revision 81da2ede)
1 /*
2  * Copyright 2014 Advanced Micro Devices, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
20  *
21  * The above copyright notice and this permission notice (including the
22  * next paragraph) shall be included in all copies or substantial portions
23  * of the Software.
24  *
25  * Authors: Christian König <christian.koenig@amd.com>
26  */
27 
28 #include <linux/firmware.h>
29 #include <drm/drmP.h>
30 #include "amdgpu.h"
31 #include "amdgpu_vce.h"
32 #include "vid.h"
33 #include "vce/vce_3_0_d.h"
34 #include "vce/vce_3_0_sh_mask.h"
35 #include "oss/oss_3_0_d.h"
36 #include "oss/oss_3_0_sh_mask.h"
37 #include "gca/gfx_8_0_d.h"
38 #include "smu/smu_7_1_2_d.h"
39 #include "smu/smu_7_1_2_sh_mask.h"
40 
41 #define GRBM_GFX_INDEX__VCE_INSTANCE__SHIFT	0x04
42 #define GRBM_GFX_INDEX__VCE_INSTANCE_MASK	0x10
43 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR0 	0x8616
44 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR1 	0x8617
45 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR2 	0x8618
46 
47 #define VCE_V3_0_FW_SIZE	(384 * 1024)
48 #define VCE_V3_0_STACK_SIZE	(64 * 1024)
49 #define VCE_V3_0_DATA_SIZE	((16 * 1024 * AMDGPU_MAX_VCE_HANDLES) + (52 * 1024))
50 
51 static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx);
52 static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev);
53 static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev);
54 
55 /**
56  * vce_v3_0_ring_get_rptr - get read pointer
57  *
58  * @ring: amdgpu_ring pointer
59  *
60  * Returns the current hardware read pointer
61  */
62 static uint32_t vce_v3_0_ring_get_rptr(struct amdgpu_ring *ring)
63 {
64 	struct amdgpu_device *adev = ring->adev;
65 
66 	if (ring == &adev->vce.ring[0])
67 		return RREG32(mmVCE_RB_RPTR);
68 	else
69 		return RREG32(mmVCE_RB_RPTR2);
70 }
71 
72 /**
73  * vce_v3_0_ring_get_wptr - get write pointer
74  *
75  * @ring: amdgpu_ring pointer
76  *
77  * Returns the current hardware write pointer
78  */
79 static uint32_t vce_v3_0_ring_get_wptr(struct amdgpu_ring *ring)
80 {
81 	struct amdgpu_device *adev = ring->adev;
82 
83 	if (ring == &adev->vce.ring[0])
84 		return RREG32(mmVCE_RB_WPTR);
85 	else
86 		return RREG32(mmVCE_RB_WPTR2);
87 }
88 
89 /**
90  * vce_v3_0_ring_set_wptr - set write pointer
91  *
92  * @ring: amdgpu_ring pointer
93  *
94  * Commits the write pointer to the hardware
95  */
96 static void vce_v3_0_ring_set_wptr(struct amdgpu_ring *ring)
97 {
98 	struct amdgpu_device *adev = ring->adev;
99 
100 	if (ring == &adev->vce.ring[0])
101 		WREG32(mmVCE_RB_WPTR, ring->wptr);
102 	else
103 		WREG32(mmVCE_RB_WPTR2, ring->wptr);
104 }
105 
106 static void vce_v3_0_override_vce_clock_gating(struct amdgpu_device *adev, bool override)
107 {
108 	u32 tmp, data;
109 
110 	tmp = data = RREG32(mmVCE_RB_ARB_CTRL);
111 	if (override)
112 		data |= VCE_RB_ARB_CTRL__VCE_CGTT_OVERRIDE_MASK;
113 	else
114 		data &= ~VCE_RB_ARB_CTRL__VCE_CGTT_OVERRIDE_MASK;
115 
116 	if (tmp != data)
117 		WREG32(mmVCE_RB_ARB_CTRL, data);
118 }
119 
120 static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev,
121 					     bool gated)
122 {
123 	u32 tmp, data;
124 	/* Set Override to disable Clock Gating */
125 	vce_v3_0_override_vce_clock_gating(adev, true);
126 
127 	if (!gated) {
128 		/* Force CLOCK ON for VCE_CLOCK_GATING_B,
129 		 * {*_FORCE_ON, *_FORCE_OFF} = {1, 0}
130 		 * VREG can be FORCE ON or set to Dynamic, but can't be OFF
131 		 */
132 		tmp = data = RREG32(mmVCE_CLOCK_GATING_B);
133 		data |= 0x1ff;
134 		data &= ~0xef0000;
135 		if (tmp != data)
136 			WREG32(mmVCE_CLOCK_GATING_B, data);
137 
138 		/* Force CLOCK ON for VCE_UENC_CLOCK_GATING,
139 		 * {*_FORCE_ON, *_FORCE_OFF} = {1, 0}
140 		 */
141 		tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING);
142 		data |= 0x3ff000;
143 		data &= ~0xffc00000;
144 		if (tmp != data)
145 			WREG32(mmVCE_UENC_CLOCK_GATING, data);
146 
147 		/* set VCE_UENC_CLOCK_GATING_2 */
148 		tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING_2);
149 		data |= 0x2;
150 		data &= ~0x2;
151 		if (tmp != data)
152 			WREG32(mmVCE_UENC_CLOCK_GATING_2, data);
153 
154 		/* Force CLOCK ON for VCE_UENC_REG_CLOCK_GATING */
155 		tmp = data = RREG32(mmVCE_UENC_REG_CLOCK_GATING);
156 		data |= 0x37f;
157 		if (tmp != data)
158 			WREG32(mmVCE_UENC_REG_CLOCK_GATING, data);
159 
160 		/* Force VCE_UENC_DMA_DCLK_CTRL Clock ON */
161 		tmp = data = RREG32(mmVCE_UENC_DMA_DCLK_CTRL);
162 		data |= VCE_UENC_DMA_DCLK_CTRL__WRDMCLK_FORCEON_MASK |
163 				VCE_UENC_DMA_DCLK_CTRL__RDDMCLK_FORCEON_MASK |
164 				VCE_UENC_DMA_DCLK_CTRL__REGCLK_FORCEON_MASK  |
165 				0x8;
166 		if (tmp != data)
167 			WREG32(mmVCE_UENC_DMA_DCLK_CTRL, data);
168 	} else {
169 		/* Force CLOCK OFF for VCE_CLOCK_GATING_B,
170 		 * {*, *_FORCE_OFF} = {*, 1}
171 		 * set VREG to Dynamic, as it can't be OFF
172 		 */
173 		tmp = data = RREG32(mmVCE_CLOCK_GATING_B);
174 		data &= ~0x80010;
175 		data |= 0xe70008;
176 		if (tmp != data)
177 			WREG32(mmVCE_CLOCK_GATING_B, data);
178 		/* Force CLOCK OFF for VCE_UENC_CLOCK_GATING,
179 		 * Force ClOCK OFF takes precedent over Force CLOCK ON setting.
180 		 * {*_FORCE_ON, *_FORCE_OFF} = {*, 1}
181 		 */
182 		tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING);
183 		data |= 0xffc00000;
184 		if (tmp != data)
185 			WREG32(mmVCE_UENC_CLOCK_GATING, data);
186 		/* Set VCE_UENC_CLOCK_GATING_2 */
187 		tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING_2);
188 		data |= 0x10000;
189 		if (tmp != data)
190 			WREG32(mmVCE_UENC_CLOCK_GATING_2, data);
191 		/* Set VCE_UENC_REG_CLOCK_GATING to dynamic */
192 		tmp = data = RREG32(mmVCE_UENC_REG_CLOCK_GATING);
193 		data &= ~0xffc00000;
194 		if (tmp != data)
195 			WREG32(mmVCE_UENC_REG_CLOCK_GATING, data);
196 		/* Set VCE_UENC_DMA_DCLK_CTRL CG always in dynamic mode */
197 		tmp = data = RREG32(mmVCE_UENC_DMA_DCLK_CTRL);
198 		data &= ~(VCE_UENC_DMA_DCLK_CTRL__WRDMCLK_FORCEON_MASK |
199 				VCE_UENC_DMA_DCLK_CTRL__RDDMCLK_FORCEON_MASK |
200 				VCE_UENC_DMA_DCLK_CTRL__REGCLK_FORCEON_MASK  |
201 				0x8);
202 		if (tmp != data)
203 			WREG32(mmVCE_UENC_DMA_DCLK_CTRL, data);
204 	}
205 	vce_v3_0_override_vce_clock_gating(adev, false);
206 }
207 
208 /**
209  * vce_v3_0_start - start VCE block
210  *
211  * @adev: amdgpu_device pointer
212  *
213  * Setup and start the VCE block
214  */
215 static int vce_v3_0_start(struct amdgpu_device *adev)
216 {
217 	struct amdgpu_ring *ring;
218 	int idx, i, j, r;
219 
220 	mutex_lock(&adev->grbm_idx_mutex);
221 	for (idx = 0; idx < 2; ++idx) {
222 
223 		if (adev->vce.harvest_config & (1 << idx))
224 			continue;
225 
226 		if (idx == 0)
227 			WREG32_P(mmGRBM_GFX_INDEX, 0,
228 				~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
229 		else
230 			WREG32_P(mmGRBM_GFX_INDEX,
231 				GRBM_GFX_INDEX__VCE_INSTANCE_MASK,
232 				~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
233 
234 		vce_v3_0_mc_resume(adev, idx);
235 
236 		/* set BUSY flag */
237 		WREG32_P(mmVCE_STATUS, 1, ~1);
238 		if (adev->asic_type >= CHIP_STONEY)
239 			WREG32_P(mmVCE_VCPU_CNTL, 1, ~0x200001);
240 		else
241 			WREG32_P(mmVCE_VCPU_CNTL, VCE_VCPU_CNTL__CLK_EN_MASK,
242 				~VCE_VCPU_CNTL__CLK_EN_MASK);
243 
244 		WREG32_P(mmVCE_SOFT_RESET,
245 			 VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
246 			 ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
247 
248 		mdelay(100);
249 
250 		WREG32_P(mmVCE_SOFT_RESET, 0,
251 			~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
252 
253 		for (i = 0; i < 10; ++i) {
254 			uint32_t status;
255 			for (j = 0; j < 100; ++j) {
256 				status = RREG32(mmVCE_STATUS);
257 				if (status & 2)
258 					break;
259 				mdelay(10);
260 			}
261 			r = 0;
262 			if (status & 2)
263 				break;
264 
265 			DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n");
266 			WREG32_P(mmVCE_SOFT_RESET,
267 				VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
268 				~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
269 			mdelay(10);
270 			WREG32_P(mmVCE_SOFT_RESET, 0,
271 				~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
272 			mdelay(10);
273 			r = -1;
274 		}
275 
276 		/* clear BUSY flag */
277 		WREG32_P(mmVCE_STATUS, 0, ~1);
278 
279 		/* Set Clock-Gating off */
280 		if (adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG)
281 			vce_v3_0_set_vce_sw_clock_gating(adev, false);
282 
283 		if (r) {
284 			DRM_ERROR("VCE not responding, giving up!!!\n");
285 			mutex_unlock(&adev->grbm_idx_mutex);
286 			return r;
287 		}
288 	}
289 
290 	WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
291 	mutex_unlock(&adev->grbm_idx_mutex);
292 
293 	ring = &adev->vce.ring[0];
294 	WREG32(mmVCE_RB_RPTR, ring->wptr);
295 	WREG32(mmVCE_RB_WPTR, ring->wptr);
296 	WREG32(mmVCE_RB_BASE_LO, ring->gpu_addr);
297 	WREG32(mmVCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
298 	WREG32(mmVCE_RB_SIZE, ring->ring_size / 4);
299 
300 	ring = &adev->vce.ring[1];
301 	WREG32(mmVCE_RB_RPTR2, ring->wptr);
302 	WREG32(mmVCE_RB_WPTR2, ring->wptr);
303 	WREG32(mmVCE_RB_BASE_LO2, ring->gpu_addr);
304 	WREG32(mmVCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
305 	WREG32(mmVCE_RB_SIZE2, ring->ring_size / 4);
306 
307 	return 0;
308 }
309 
310 #define ixVCE_HARVEST_FUSE_MACRO__ADDRESS     0xC0014074
311 #define VCE_HARVEST_FUSE_MACRO__SHIFT       27
312 #define VCE_HARVEST_FUSE_MACRO__MASK        0x18000000
313 
314 static unsigned vce_v3_0_get_harvest_config(struct amdgpu_device *adev)
315 {
316 	u32 tmp;
317 
318 	/* Fiji, Stoney are single pipe */
319 	if ((adev->asic_type == CHIP_FIJI) ||
320 	    (adev->asic_type == CHIP_STONEY))
321 		return AMDGPU_VCE_HARVEST_VCE1;
322 
323 	/* Tonga and CZ are dual or single pipe */
324 	if (adev->flags & AMD_IS_APU)
325 		tmp = (RREG32_SMC(ixVCE_HARVEST_FUSE_MACRO__ADDRESS) &
326 		       VCE_HARVEST_FUSE_MACRO__MASK) >>
327 			VCE_HARVEST_FUSE_MACRO__SHIFT;
328 	else
329 		tmp = (RREG32_SMC(ixCC_HARVEST_FUSES) &
330 		       CC_HARVEST_FUSES__VCE_DISABLE_MASK) >>
331 			CC_HARVEST_FUSES__VCE_DISABLE__SHIFT;
332 
333 	switch (tmp) {
334 	case 1:
335 		return AMDGPU_VCE_HARVEST_VCE0;
336 	case 2:
337 		return AMDGPU_VCE_HARVEST_VCE1;
338 	case 3:
339 		return AMDGPU_VCE_HARVEST_VCE0 | AMDGPU_VCE_HARVEST_VCE1;
340 	default:
341 		return 0;
342 	}
343 }
344 
345 static int vce_v3_0_early_init(void *handle)
346 {
347 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
348 
349 	adev->vce.harvest_config = vce_v3_0_get_harvest_config(adev);
350 
351 	if ((adev->vce.harvest_config &
352 	     (AMDGPU_VCE_HARVEST_VCE0 | AMDGPU_VCE_HARVEST_VCE1)) ==
353 	    (AMDGPU_VCE_HARVEST_VCE0 | AMDGPU_VCE_HARVEST_VCE1))
354 		return -ENOENT;
355 
356 	vce_v3_0_set_ring_funcs(adev);
357 	vce_v3_0_set_irq_funcs(adev);
358 
359 	return 0;
360 }
361 
362 static int vce_v3_0_sw_init(void *handle)
363 {
364 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
365 	struct amdgpu_ring *ring;
366 	int r;
367 
368 	/* VCE */
369 	r = amdgpu_irq_add_id(adev, 167, &adev->vce.irq);
370 	if (r)
371 		return r;
372 
373 	r = amdgpu_vce_sw_init(adev, VCE_V3_0_FW_SIZE +
374 		(VCE_V3_0_STACK_SIZE + VCE_V3_0_DATA_SIZE) * 2);
375 	if (r)
376 		return r;
377 
378 	r = amdgpu_vce_resume(adev);
379 	if (r)
380 		return r;
381 
382 	ring = &adev->vce.ring[0];
383 	sprintf(ring->name, "vce0");
384 	r = amdgpu_ring_init(adev, ring, 4096, VCE_CMD_NO_OP, 0xf,
385 			     &adev->vce.irq, 0, AMDGPU_RING_TYPE_VCE);
386 	if (r)
387 		return r;
388 
389 	ring = &adev->vce.ring[1];
390 	sprintf(ring->name, "vce1");
391 	r = amdgpu_ring_init(adev, ring, 4096, VCE_CMD_NO_OP, 0xf,
392 			     &adev->vce.irq, 0, AMDGPU_RING_TYPE_VCE);
393 	if (r)
394 		return r;
395 
396 	return r;
397 }
398 
399 static int vce_v3_0_sw_fini(void *handle)
400 {
401 	int r;
402 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
403 
404 	r = amdgpu_vce_suspend(adev);
405 	if (r)
406 		return r;
407 
408 	r = amdgpu_vce_sw_fini(adev);
409 	if (r)
410 		return r;
411 
412 	return r;
413 }
414 
415 static int vce_v3_0_hw_init(void *handle)
416 {
417 	struct amdgpu_ring *ring;
418 	int r;
419 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
420 
421 	r = vce_v3_0_start(adev);
422 	if (r)
423 		return r;
424 
425 	ring = &adev->vce.ring[0];
426 	ring->ready = true;
427 	r = amdgpu_ring_test_ring(ring);
428 	if (r) {
429 		ring->ready = false;
430 		return r;
431 	}
432 
433 	ring = &adev->vce.ring[1];
434 	ring->ready = true;
435 	r = amdgpu_ring_test_ring(ring);
436 	if (r) {
437 		ring->ready = false;
438 		return r;
439 	}
440 
441 	DRM_INFO("VCE initialized successfully.\n");
442 
443 	return 0;
444 }
445 
446 static int vce_v3_0_hw_fini(void *handle)
447 {
448 	return 0;
449 }
450 
451 static int vce_v3_0_suspend(void *handle)
452 {
453 	int r;
454 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
455 
456 	r = vce_v3_0_hw_fini(adev);
457 	if (r)
458 		return r;
459 
460 	r = amdgpu_vce_suspend(adev);
461 	if (r)
462 		return r;
463 
464 	return r;
465 }
466 
467 static int vce_v3_0_resume(void *handle)
468 {
469 	int r;
470 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
471 
472 	r = amdgpu_vce_resume(adev);
473 	if (r)
474 		return r;
475 
476 	r = vce_v3_0_hw_init(adev);
477 	if (r)
478 		return r;
479 
480 	return r;
481 }
482 
483 static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx)
484 {
485 	uint32_t offset, size;
486 
487 	WREG32_P(mmVCE_CLOCK_GATING_A, 0, ~(1 << 16));
488 	WREG32_P(mmVCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000);
489 	WREG32_P(mmVCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F);
490 	WREG32(mmVCE_CLOCK_GATING_B, 0xf7);
491 
492 	WREG32(mmVCE_LMI_CTRL, 0x00398000);
493 	WREG32_P(mmVCE_LMI_CACHE_CTRL, 0x0, ~0x1);
494 	WREG32(mmVCE_LMI_SWAP_CNTL, 0);
495 	WREG32(mmVCE_LMI_SWAP_CNTL1, 0);
496 	WREG32(mmVCE_LMI_VM_CTRL, 0);
497 	if (adev->asic_type >= CHIP_STONEY) {
498 		WREG32(mmVCE_LMI_VCPU_CACHE_40BIT_BAR0, (adev->vce.gpu_addr >> 8));
499 		WREG32(mmVCE_LMI_VCPU_CACHE_40BIT_BAR1, (adev->vce.gpu_addr >> 8));
500 		WREG32(mmVCE_LMI_VCPU_CACHE_40BIT_BAR2, (adev->vce.gpu_addr >> 8));
501 	} else
502 		WREG32(mmVCE_LMI_VCPU_CACHE_40BIT_BAR, (adev->vce.gpu_addr >> 8));
503 	offset = AMDGPU_VCE_FIRMWARE_OFFSET;
504 	size = VCE_V3_0_FW_SIZE;
505 	WREG32(mmVCE_VCPU_CACHE_OFFSET0, offset & 0x7fffffff);
506 	WREG32(mmVCE_VCPU_CACHE_SIZE0, size);
507 
508 	if (idx == 0) {
509 		offset += size;
510 		size = VCE_V3_0_STACK_SIZE;
511 		WREG32(mmVCE_VCPU_CACHE_OFFSET1, offset & 0x7fffffff);
512 		WREG32(mmVCE_VCPU_CACHE_SIZE1, size);
513 		offset += size;
514 		size = VCE_V3_0_DATA_SIZE;
515 		WREG32(mmVCE_VCPU_CACHE_OFFSET2, offset & 0x7fffffff);
516 		WREG32(mmVCE_VCPU_CACHE_SIZE2, size);
517 	} else {
518 		offset += size + VCE_V3_0_STACK_SIZE + VCE_V3_0_DATA_SIZE;
519 		size = VCE_V3_0_STACK_SIZE;
520 		WREG32(mmVCE_VCPU_CACHE_OFFSET1, offset & 0xfffffff);
521 		WREG32(mmVCE_VCPU_CACHE_SIZE1, size);
522 		offset += size;
523 		size = VCE_V3_0_DATA_SIZE;
524 		WREG32(mmVCE_VCPU_CACHE_OFFSET2, offset & 0xfffffff);
525 		WREG32(mmVCE_VCPU_CACHE_SIZE2, size);
526 	}
527 
528 	WREG32_P(mmVCE_LMI_CTRL2, 0x0, ~0x100);
529 
530 	WREG32_P(mmVCE_SYS_INT_EN, VCE_SYS_INT_EN__VCE_SYS_INT_TRAP_INTERRUPT_EN_MASK,
531 		 ~VCE_SYS_INT_EN__VCE_SYS_INT_TRAP_INTERRUPT_EN_MASK);
532 }
533 
534 static bool vce_v3_0_is_idle(void *handle)
535 {
536 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
537 	u32 mask = 0;
538 
539 	mask |= (adev->vce.harvest_config & (1<<0)) ? 0 : SRBM_STATUS2__VCE0_BUSY_MASK;
540 	mask |= (adev->vce.harvest_config & (1<<1)) ? 0 : SRBM_STATUS2__VCE1_BUSY_MASK;
541 
542 	return !(RREG32(mmSRBM_STATUS2) & mask);
543 }
544 
545 static int vce_v3_0_wait_for_idle(void *handle)
546 {
547 	unsigned i;
548 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
549 
550 	for (i = 0; i < adev->usec_timeout; i++)
551 		if (vce_v3_0_is_idle(handle))
552 			return 0;
553 
554 	return -ETIMEDOUT;
555 }
556 
557 static int vce_v3_0_soft_reset(void *handle)
558 {
559 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
560 	u32 mask = 0;
561 
562 	mask |= (adev->vce.harvest_config & (1<<0)) ? 0 : SRBM_SOFT_RESET__SOFT_RESET_VCE0_MASK;
563 	mask |= (adev->vce.harvest_config & (1<<1)) ? 0 : SRBM_SOFT_RESET__SOFT_RESET_VCE1_MASK;
564 
565 	WREG32_P(mmSRBM_SOFT_RESET, mask,
566 		 ~(SRBM_SOFT_RESET__SOFT_RESET_VCE0_MASK |
567 		   SRBM_SOFT_RESET__SOFT_RESET_VCE1_MASK));
568 	mdelay(5);
569 
570 	return vce_v3_0_start(adev);
571 }
572 
573 static void vce_v3_0_print_status(void *handle)
574 {
575 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
576 
577 	dev_info(adev->dev, "VCE 3.0 registers\n");
578 	dev_info(adev->dev, "  VCE_STATUS=0x%08X\n",
579 		 RREG32(mmVCE_STATUS));
580 	dev_info(adev->dev, "  VCE_VCPU_CNTL=0x%08X\n",
581 		 RREG32(mmVCE_VCPU_CNTL));
582 	dev_info(adev->dev, "  VCE_VCPU_CACHE_OFFSET0=0x%08X\n",
583 		 RREG32(mmVCE_VCPU_CACHE_OFFSET0));
584 	dev_info(adev->dev, "  VCE_VCPU_CACHE_SIZE0=0x%08X\n",
585 		 RREG32(mmVCE_VCPU_CACHE_SIZE0));
586 	dev_info(adev->dev, "  VCE_VCPU_CACHE_OFFSET1=0x%08X\n",
587 		 RREG32(mmVCE_VCPU_CACHE_OFFSET1));
588 	dev_info(adev->dev, "  VCE_VCPU_CACHE_SIZE1=0x%08X\n",
589 		 RREG32(mmVCE_VCPU_CACHE_SIZE1));
590 	dev_info(adev->dev, "  VCE_VCPU_CACHE_OFFSET2=0x%08X\n",
591 		 RREG32(mmVCE_VCPU_CACHE_OFFSET2));
592 	dev_info(adev->dev, "  VCE_VCPU_CACHE_SIZE2=0x%08X\n",
593 		 RREG32(mmVCE_VCPU_CACHE_SIZE2));
594 	dev_info(adev->dev, "  VCE_SOFT_RESET=0x%08X\n",
595 		 RREG32(mmVCE_SOFT_RESET));
596 	dev_info(adev->dev, "  VCE_RB_BASE_LO2=0x%08X\n",
597 		 RREG32(mmVCE_RB_BASE_LO2));
598 	dev_info(adev->dev, "  VCE_RB_BASE_HI2=0x%08X\n",
599 		 RREG32(mmVCE_RB_BASE_HI2));
600 	dev_info(adev->dev, "  VCE_RB_SIZE2=0x%08X\n",
601 		 RREG32(mmVCE_RB_SIZE2));
602 	dev_info(adev->dev, "  VCE_RB_RPTR2=0x%08X\n",
603 		 RREG32(mmVCE_RB_RPTR2));
604 	dev_info(adev->dev, "  VCE_RB_WPTR2=0x%08X\n",
605 		 RREG32(mmVCE_RB_WPTR2));
606 	dev_info(adev->dev, "  VCE_RB_BASE_LO=0x%08X\n",
607 		 RREG32(mmVCE_RB_BASE_LO));
608 	dev_info(adev->dev, "  VCE_RB_BASE_HI=0x%08X\n",
609 		 RREG32(mmVCE_RB_BASE_HI));
610 	dev_info(adev->dev, "  VCE_RB_SIZE=0x%08X\n",
611 		 RREG32(mmVCE_RB_SIZE));
612 	dev_info(adev->dev, "  VCE_RB_RPTR=0x%08X\n",
613 		 RREG32(mmVCE_RB_RPTR));
614 	dev_info(adev->dev, "  VCE_RB_WPTR=0x%08X\n",
615 		 RREG32(mmVCE_RB_WPTR));
616 	dev_info(adev->dev, "  VCE_CLOCK_GATING_A=0x%08X\n",
617 		 RREG32(mmVCE_CLOCK_GATING_A));
618 	dev_info(adev->dev, "  VCE_CLOCK_GATING_B=0x%08X\n",
619 		 RREG32(mmVCE_CLOCK_GATING_B));
620 	dev_info(adev->dev, "  VCE_UENC_CLOCK_GATING=0x%08X\n",
621 		 RREG32(mmVCE_UENC_CLOCK_GATING));
622 	dev_info(adev->dev, "  VCE_UENC_REG_CLOCK_GATING=0x%08X\n",
623 		 RREG32(mmVCE_UENC_REG_CLOCK_GATING));
624 	dev_info(adev->dev, "  VCE_SYS_INT_EN=0x%08X\n",
625 		 RREG32(mmVCE_SYS_INT_EN));
626 	dev_info(adev->dev, "  VCE_LMI_CTRL2=0x%08X\n",
627 		 RREG32(mmVCE_LMI_CTRL2));
628 	dev_info(adev->dev, "  VCE_LMI_CTRL=0x%08X\n",
629 		 RREG32(mmVCE_LMI_CTRL));
630 	dev_info(adev->dev, "  VCE_LMI_VM_CTRL=0x%08X\n",
631 		 RREG32(mmVCE_LMI_VM_CTRL));
632 	dev_info(adev->dev, "  VCE_LMI_SWAP_CNTL=0x%08X\n",
633 		 RREG32(mmVCE_LMI_SWAP_CNTL));
634 	dev_info(adev->dev, "  VCE_LMI_SWAP_CNTL1=0x%08X\n",
635 		 RREG32(mmVCE_LMI_SWAP_CNTL1));
636 	dev_info(adev->dev, "  VCE_LMI_CACHE_CTRL=0x%08X\n",
637 		 RREG32(mmVCE_LMI_CACHE_CTRL));
638 }
639 
640 static int vce_v3_0_set_interrupt_state(struct amdgpu_device *adev,
641 					struct amdgpu_irq_src *source,
642 					unsigned type,
643 					enum amdgpu_interrupt_state state)
644 {
645 	uint32_t val = 0;
646 
647 	if (state == AMDGPU_IRQ_STATE_ENABLE)
648 		val |= VCE_SYS_INT_EN__VCE_SYS_INT_TRAP_INTERRUPT_EN_MASK;
649 
650 	WREG32_P(mmVCE_SYS_INT_EN, val, ~VCE_SYS_INT_EN__VCE_SYS_INT_TRAP_INTERRUPT_EN_MASK);
651 	return 0;
652 }
653 
654 static int vce_v3_0_process_interrupt(struct amdgpu_device *adev,
655 				      struct amdgpu_irq_src *source,
656 				      struct amdgpu_iv_entry *entry)
657 {
658 	DRM_DEBUG("IH: VCE\n");
659 
660 	WREG32_P(mmVCE_SYS_INT_STATUS,
661 		VCE_SYS_INT_STATUS__VCE_SYS_INT_TRAP_INTERRUPT_INT_MASK,
662 		~VCE_SYS_INT_STATUS__VCE_SYS_INT_TRAP_INTERRUPT_INT_MASK);
663 
664 	switch (entry->src_data) {
665 	case 0:
666 	case 1:
667 		amdgpu_fence_process(&adev->vce.ring[entry->src_data]);
668 		break;
669 	default:
670 		DRM_ERROR("Unhandled interrupt: %d %d\n",
671 			  entry->src_id, entry->src_data);
672 		break;
673 	}
674 
675 	return 0;
676 }
677 
678 static int vce_v3_0_set_clockgating_state(void *handle,
679 					  enum amd_clockgating_state state)
680 {
681 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
682 	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
683 	int i;
684 
685 	if (!(adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG))
686 		return 0;
687 
688 	mutex_lock(&adev->grbm_idx_mutex);
689 	for (i = 0; i < 2; i++) {
690 		/* Program VCE Instance 0 or 1 if not harvested */
691 		if (adev->vce.harvest_config & (1 << i))
692 			continue;
693 
694 		if (i == 0)
695 			WREG32_P(mmGRBM_GFX_INDEX, 0,
696 					~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
697 		else
698 			WREG32_P(mmGRBM_GFX_INDEX,
699 					GRBM_GFX_INDEX__VCE_INSTANCE_MASK,
700 					~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
701 
702 		if (enable) {
703 			/* initialize VCE_CLOCK_GATING_A: Clock ON/OFF delay */
704 			uint32_t data = RREG32(mmVCE_CLOCK_GATING_A);
705 			data &= ~(0xf | 0xff0);
706 			data |= ((0x0 << 0) | (0x04 << 4));
707 			WREG32(mmVCE_CLOCK_GATING_A, data);
708 
709 			/* initialize VCE_UENC_CLOCK_GATING: Clock ON/OFF delay */
710 			data = RREG32(mmVCE_UENC_CLOCK_GATING);
711 			data &= ~(0xf | 0xff0);
712 			data |= ((0x0 << 0) | (0x04 << 4));
713 			WREG32(mmVCE_UENC_CLOCK_GATING, data);
714 		}
715 
716 		vce_v3_0_set_vce_sw_clock_gating(adev, enable);
717 	}
718 
719 	WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
720 	mutex_unlock(&adev->grbm_idx_mutex);
721 
722 	return 0;
723 }
724 
725 static int vce_v3_0_set_powergating_state(void *handle,
726 					  enum amd_powergating_state state)
727 {
728 	/* This doesn't actually powergate the VCE block.
729 	 * That's done in the dpm code via the SMC.  This
730 	 * just re-inits the block as necessary.  The actual
731 	 * gating still happens in the dpm code.  We should
732 	 * revisit this when there is a cleaner line between
733 	 * the smc and the hw blocks
734 	 */
735 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
736 
737 	if (state == AMD_PG_STATE_GATE)
738 		/* XXX do we need a vce_v3_0_stop()? */
739 		return 0;
740 	else
741 		return vce_v3_0_start(adev);
742 }
743 
744 const struct amd_ip_funcs vce_v3_0_ip_funcs = {
745 	.early_init = vce_v3_0_early_init,
746 	.late_init = NULL,
747 	.sw_init = vce_v3_0_sw_init,
748 	.sw_fini = vce_v3_0_sw_fini,
749 	.hw_init = vce_v3_0_hw_init,
750 	.hw_fini = vce_v3_0_hw_fini,
751 	.suspend = vce_v3_0_suspend,
752 	.resume = vce_v3_0_resume,
753 	.is_idle = vce_v3_0_is_idle,
754 	.wait_for_idle = vce_v3_0_wait_for_idle,
755 	.soft_reset = vce_v3_0_soft_reset,
756 	.print_status = vce_v3_0_print_status,
757 	.set_clockgating_state = vce_v3_0_set_clockgating_state,
758 	.set_powergating_state = vce_v3_0_set_powergating_state,
759 };
760 
761 static const struct amdgpu_ring_funcs vce_v3_0_ring_funcs = {
762 	.get_rptr = vce_v3_0_ring_get_rptr,
763 	.get_wptr = vce_v3_0_ring_get_wptr,
764 	.set_wptr = vce_v3_0_ring_set_wptr,
765 	.parse_cs = amdgpu_vce_ring_parse_cs,
766 	.emit_ib = amdgpu_vce_ring_emit_ib,
767 	.emit_fence = amdgpu_vce_ring_emit_fence,
768 	.emit_semaphore = amdgpu_vce_ring_emit_semaphore,
769 	.test_ring = amdgpu_vce_ring_test_ring,
770 	.test_ib = amdgpu_vce_ring_test_ib,
771 	.insert_nop = amdgpu_ring_insert_nop,
772 };
773 
774 static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev)
775 {
776 	adev->vce.ring[0].funcs = &vce_v3_0_ring_funcs;
777 	adev->vce.ring[1].funcs = &vce_v3_0_ring_funcs;
778 }
779 
780 static const struct amdgpu_irq_src_funcs vce_v3_0_irq_funcs = {
781 	.set = vce_v3_0_set_interrupt_state,
782 	.process = vce_v3_0_process_interrupt,
783 };
784 
785 static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev)
786 {
787 	adev->vce.irq.num_types = 1;
788 	adev->vce.irq.funcs = &vce_v3_0_irq_funcs;
789 };
790