1/*
2 * Copyright 2014 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 * Authors: Christian König <christian.koenig@amd.com>
23 */
24
25#include <linux/delay.h>
26#include <linux/firmware.h>
27
28#include "amdgpu.h"
29#include "amdgpu_uvd.h"
30#include "vid.h"
31#include "uvd/uvd_5_0_d.h"
32#include "uvd/uvd_5_0_sh_mask.h"
33#include "oss/oss_2_0_d.h"
34#include "oss/oss_2_0_sh_mask.h"
35#include "bif/bif_5_0_d.h"
36#include "vi.h"
37#include "smu/smu_7_1_2_d.h"
38#include "smu/smu_7_1_2_sh_mask.h"
39#include "ivsrcid/ivsrcid_vislands30.h"
40
41static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev);
42static void uvd_v5_0_set_irq_funcs(struct amdgpu_device *adev);
43static int uvd_v5_0_start(struct amdgpu_device *adev);
44static void uvd_v5_0_stop(struct amdgpu_device *adev);
45static int uvd_v5_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
46 enum amd_clockgating_state state);
47static void uvd_v5_0_enable_mgcg(struct amdgpu_device *adev,
48 bool enable);
49/**
50 * uvd_v5_0_ring_get_rptr - get read pointer
51 *
52 * @ring: amdgpu_ring pointer
53 *
54 * Returns the current hardware read pointer
55 */
56static uint64_t uvd_v5_0_ring_get_rptr(struct amdgpu_ring *ring)
57{
58 struct amdgpu_device *adev = ring->adev;
59
60 return RREG32(mmUVD_RBC_RB_RPTR);
61}
62
63/**
64 * uvd_v5_0_ring_get_wptr - get write pointer
65 *
66 * @ring: amdgpu_ring pointer
67 *
68 * Returns the current hardware write pointer
69 */
70static uint64_t uvd_v5_0_ring_get_wptr(struct amdgpu_ring *ring)
71{
72 struct amdgpu_device *adev = ring->adev;
73
74 return RREG32(mmUVD_RBC_RB_WPTR);
75}
76
77/**
78 * uvd_v5_0_ring_set_wptr - set write pointer
79 *
80 * @ring: amdgpu_ring pointer
81 *
82 * Commits the write pointer to the hardware
83 */
84static void uvd_v5_0_ring_set_wptr(struct amdgpu_ring *ring)
85{
86 struct amdgpu_device *adev = ring->adev;
87
88 WREG32(mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
89}
90
91static int uvd_v5_0_early_init(struct amdgpu_ip_block *ip_block)
92{
93 struct amdgpu_device *adev = ip_block->adev;
94 adev->uvd.num_uvd_inst = 1;
95
96 uvd_v5_0_set_ring_funcs(adev);
97 uvd_v5_0_set_irq_funcs(adev);
98
99 return 0;
100}
101
102static int uvd_v5_0_sw_init(struct amdgpu_ip_block *ip_block)
103{
104 struct amdgpu_ring *ring;
105 struct amdgpu_device *adev = ip_block->adev;
106 int r;
107
108 /* UVD TRAP */
109 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_UVD_SYSTEM_MESSAGE, source: &adev->uvd.inst->irq);
110 if (r)
111 return r;
112
113 r = amdgpu_uvd_sw_init(adev);
114 if (r)
115 return r;
116
117 ring = &adev->uvd.inst->ring;
118 sprintf(buf: ring->name, fmt: "uvd");
119 r = amdgpu_ring_init(adev, ring, max_dw: 512, irq_src: &adev->uvd.inst->irq, irq_type: 0,
120 hw_prio: AMDGPU_RING_PRIO_DEFAULT, NULL);
121 if (r)
122 return r;
123
124 r = amdgpu_uvd_resume(adev);
125 if (r)
126 return r;
127
128 return r;
129}
130
131static int uvd_v5_0_sw_fini(struct amdgpu_ip_block *ip_block)
132{
133 int r;
134 struct amdgpu_device *adev = ip_block->adev;
135
136 r = amdgpu_uvd_suspend(adev);
137 if (r)
138 return r;
139
140 return amdgpu_uvd_sw_fini(adev);
141}
142
143/**
144 * uvd_v5_0_hw_init - start and test UVD block
145 *
146 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
147 *
148 * Initialize the hardware, boot up the VCPU and do some testing
149 */
150static int uvd_v5_0_hw_init(struct amdgpu_ip_block *ip_block)
151{
152 struct amdgpu_device *adev = ip_block->adev;
153 struct amdgpu_ring *ring = &adev->uvd.inst->ring;
154 uint32_t tmp;
155 int r;
156
157 amdgpu_asic_set_uvd_clocks(adev, 10000, 10000);
158 uvd_v5_0_set_clockgating_state(ip_block, state: AMD_CG_STATE_UNGATE);
159 uvd_v5_0_enable_mgcg(adev, enable: true);
160
161 r = amdgpu_ring_test_helper(ring);
162 if (r)
163 goto done;
164
165 r = amdgpu_ring_alloc(ring, ndw: 10);
166 if (r) {
167 DRM_ERROR("amdgpu: ring failed to lock UVD ring (%d).\n", r);
168 goto done;
169 }
170
171 tmp = PACKET0(mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
172 amdgpu_ring_write(ring, v: tmp);
173 amdgpu_ring_write(ring, v: 0xFFFFF);
174
175 tmp = PACKET0(mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
176 amdgpu_ring_write(ring, v: tmp);
177 amdgpu_ring_write(ring, v: 0xFFFFF);
178
179 tmp = PACKET0(mmUVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
180 amdgpu_ring_write(ring, v: tmp);
181 amdgpu_ring_write(ring, v: 0xFFFFF);
182
183 /* Clear timeout status bits */
184 amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_TIMEOUT_STATUS, 0));
185 amdgpu_ring_write(ring, v: 0x8);
186
187 amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
188 amdgpu_ring_write(ring, v: 3);
189
190 amdgpu_ring_commit(ring);
191
192done:
193 if (!r)
194 DRM_INFO("UVD initialized successfully.\n");
195
196 return r;
197
198}
199
200/**
201 * uvd_v5_0_hw_fini - stop the hardware block
202 *
203 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
204 *
205 * Stop the UVD block, mark ring as not ready any more
206 */
207static int uvd_v5_0_hw_fini(struct amdgpu_ip_block *ip_block)
208{
209 struct amdgpu_device *adev = ip_block->adev;
210
211 cancel_delayed_work_sync(dwork: &adev->uvd.idle_work);
212
213 if (RREG32(mmUVD_STATUS) != 0)
214 uvd_v5_0_stop(adev);
215
216 return 0;
217}
218
219static int uvd_v5_0_prepare_suspend(struct amdgpu_ip_block *ip_block)
220{
221 struct amdgpu_device *adev = ip_block->adev;
222
223 return amdgpu_uvd_prepare_suspend(adev);
224}
225
226static int uvd_v5_0_suspend(struct amdgpu_ip_block *ip_block)
227{
228 int r;
229 struct amdgpu_device *adev = ip_block->adev;
230
231 /*
232 * Proper cleanups before halting the HW engine:
233 * - cancel the delayed idle work
234 * - enable powergating
235 * - enable clockgating
236 * - disable dpm
237 *
238 * TODO: to align with the VCN implementation, move the
239 * jobs for clockgating/powergating/dpm setting to
240 * ->set_powergating_state().
241 */
242 cancel_delayed_work_sync(dwork: &adev->uvd.idle_work);
243
244 if (adev->pm.dpm_enabled) {
245 amdgpu_dpm_enable_uvd(adev, enable: false);
246 } else {
247 amdgpu_asic_set_uvd_clocks(adev, 0, 0);
248 /* shutdown the UVD block */
249 amdgpu_device_ip_set_powergating_state(dev: adev, block_type: AMD_IP_BLOCK_TYPE_UVD,
250 state: AMD_PG_STATE_GATE);
251 amdgpu_device_ip_set_clockgating_state(dev: adev, block_type: AMD_IP_BLOCK_TYPE_UVD,
252 state: AMD_CG_STATE_GATE);
253 }
254
255 r = uvd_v5_0_hw_fini(ip_block);
256 if (r)
257 return r;
258
259 return amdgpu_uvd_suspend(adev);
260}
261
262static int uvd_v5_0_resume(struct amdgpu_ip_block *ip_block)
263{
264 int r;
265
266 r = amdgpu_uvd_resume(adev: ip_block->adev);
267 if (r)
268 return r;
269
270 return uvd_v5_0_hw_init(ip_block);
271}
272
273/**
274 * uvd_v5_0_mc_resume - memory controller programming
275 *
276 * @adev: amdgpu_device pointer
277 *
278 * Let the UVD memory controller know it's offsets
279 */
280static void uvd_v5_0_mc_resume(struct amdgpu_device *adev)
281{
282 uint64_t offset;
283 uint32_t size;
284
285 /* program memory controller bits 0-27 */
286 WREG32(mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
287 lower_32_bits(adev->uvd.inst->gpu_addr));
288 WREG32(mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
289 upper_32_bits(adev->uvd.inst->gpu_addr));
290
291 offset = AMDGPU_UVD_FIRMWARE_OFFSET;
292 size = AMDGPU_UVD_FIRMWARE_SIZE(adev);
293 WREG32(mmUVD_VCPU_CACHE_OFFSET0, offset >> 3);
294 WREG32(mmUVD_VCPU_CACHE_SIZE0, size);
295
296 offset += size;
297 size = AMDGPU_UVD_HEAP_SIZE;
298 WREG32(mmUVD_VCPU_CACHE_OFFSET1, offset >> 3);
299 WREG32(mmUVD_VCPU_CACHE_SIZE1, size);
300
301 offset += size;
302 size = AMDGPU_UVD_STACK_SIZE +
303 (AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles);
304 WREG32(mmUVD_VCPU_CACHE_OFFSET2, offset >> 3);
305 WREG32(mmUVD_VCPU_CACHE_SIZE2, size);
306
307 WREG32(mmUVD_UDEC_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
308 WREG32(mmUVD_UDEC_DB_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
309 WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
310}
311
312/**
313 * uvd_v5_0_start - start UVD block
314 *
315 * @adev: amdgpu_device pointer
316 *
317 * Setup and start the UVD block
318 */
319static int uvd_v5_0_start(struct amdgpu_device *adev)
320{
321 struct amdgpu_ring *ring = &adev->uvd.inst->ring;
322 uint32_t rb_bufsz, tmp;
323 uint32_t lmi_swap_cntl;
324 uint32_t mp_swap_cntl;
325 int i, j, r;
326
327 /*disable DPG */
328 WREG32_P(mmUVD_POWER_STATUS, 0, ~(1 << 2));
329
330 /* disable byte swapping */
331 lmi_swap_cntl = 0;
332 mp_swap_cntl = 0;
333
334 uvd_v5_0_mc_resume(adev);
335
336 /* disable interupt */
337 WREG32_P(mmUVD_MASTINT_EN, 0, ~(1 << 1));
338
339 /* stall UMC and register bus before resetting VCPU */
340 WREG32_P(mmUVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
341 mdelay(1);
342
343 /* put LMI, VCPU, RBC etc... into reset */
344 WREG32(mmUVD_SOFT_RESET, UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
345 UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK | UVD_SOFT_RESET__LBSI_SOFT_RESET_MASK |
346 UVD_SOFT_RESET__RBC_SOFT_RESET_MASK | UVD_SOFT_RESET__CSM_SOFT_RESET_MASK |
347 UVD_SOFT_RESET__CXW_SOFT_RESET_MASK | UVD_SOFT_RESET__TAP_SOFT_RESET_MASK |
348 UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
349 mdelay(5);
350
351 /* take UVD block out of reset */
352 WREG32_P(mmSRBM_SOFT_RESET, 0, ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
353 mdelay(5);
354
355 /* initialize UVD memory controller */
356 WREG32(mmUVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
357 (1 << 21) | (1 << 9) | (1 << 20));
358
359#ifdef __BIG_ENDIAN
360 /* swap (8 in 32) RB and IB */
361 lmi_swap_cntl = 0xa;
362 mp_swap_cntl = 0;
363#endif
364 WREG32(mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
365 WREG32(mmUVD_MP_SWAP_CNTL, mp_swap_cntl);
366
367 WREG32(mmUVD_MPC_SET_MUXA0, 0x40c2040);
368 WREG32(mmUVD_MPC_SET_MUXA1, 0x0);
369 WREG32(mmUVD_MPC_SET_MUXB0, 0x40c2040);
370 WREG32(mmUVD_MPC_SET_MUXB1, 0x0);
371 WREG32(mmUVD_MPC_SET_ALU, 0);
372 WREG32(mmUVD_MPC_SET_MUX, 0x88);
373
374 /* take all subblocks out of reset, except VCPU */
375 WREG32(mmUVD_SOFT_RESET, UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
376 mdelay(5);
377
378 /* enable VCPU clock */
379 WREG32(mmUVD_VCPU_CNTL, 1 << 9);
380
381 /* enable UMC */
382 WREG32_P(mmUVD_LMI_CTRL2, 0, ~(1 << 8));
383
384 /* boot up the VCPU */
385 WREG32(mmUVD_SOFT_RESET, 0);
386 mdelay(10);
387
388 for (i = 0; i < 10; ++i) {
389 uint32_t status;
390 for (j = 0; j < 100; ++j) {
391 status = RREG32(mmUVD_STATUS);
392 if (status & 2)
393 break;
394 mdelay(10);
395 }
396 r = 0;
397 if (status & 2)
398 break;
399
400 DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
401 WREG32_P(mmUVD_SOFT_RESET, UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
402 ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
403 mdelay(10);
404 WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
405 mdelay(10);
406 r = -1;
407 }
408
409 if (r) {
410 DRM_ERROR("UVD not responding, giving up!!!\n");
411 return r;
412 }
413 /* enable master interrupt */
414 WREG32_P(mmUVD_MASTINT_EN, 3 << 1, ~(3 << 1));
415
416 /* clear the bit 4 of UVD_STATUS */
417 WREG32_P(mmUVD_STATUS, 0, ~(2 << 1));
418
419 rb_bufsz = order_base_2(ring->ring_size);
420 tmp = 0;
421 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
422 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
423 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
424 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_WPTR_POLL_EN, 0);
425 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
426 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
427 /* force RBC into idle state */
428 WREG32(mmUVD_RBC_RB_CNTL, tmp);
429
430 /* set the write pointer delay */
431 WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
432
433 /* set the wb address */
434 WREG32(mmUVD_RBC_RB_RPTR_ADDR, (upper_32_bits(ring->gpu_addr) >> 2));
435
436 /* program the RB_BASE for ring buffer */
437 WREG32(mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
438 lower_32_bits(ring->gpu_addr));
439 WREG32(mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
440 upper_32_bits(ring->gpu_addr));
441
442 /* Initialize the ring buffer's read and write pointers */
443 WREG32(mmUVD_RBC_RB_RPTR, 0);
444
445 ring->wptr = RREG32(mmUVD_RBC_RB_RPTR);
446 WREG32(mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
447
448 WREG32_P(mmUVD_RBC_RB_CNTL, 0, ~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
449
450 return 0;
451}
452
453/**
454 * uvd_v5_0_stop - stop UVD block
455 *
456 * @adev: amdgpu_device pointer
457 *
458 * stop the UVD block
459 */
460static void uvd_v5_0_stop(struct amdgpu_device *adev)
461{
462 /* force RBC into idle state */
463 WREG32(mmUVD_RBC_RB_CNTL, 0x11010101);
464
465 /* Stall UMC and register bus before resetting VCPU */
466 WREG32_P(mmUVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
467 mdelay(1);
468
469 /* put VCPU into reset */
470 WREG32(mmUVD_SOFT_RESET, UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
471 mdelay(5);
472
473 /* disable VCPU clock */
474 WREG32(mmUVD_VCPU_CNTL, 0x0);
475
476 /* Unstall UMC and register bus */
477 WREG32_P(mmUVD_LMI_CTRL2, 0, ~(1 << 8));
478
479 WREG32(mmUVD_STATUS, 0);
480}
481
482/**
483 * uvd_v5_0_ring_emit_fence - emit an fence & trap command
484 *
485 * @ring: amdgpu_ring pointer
486 * @addr: address
487 * @seq: sequence number
488 * @flags: fence related flags
489 *
490 * Write a fence and a trap command to the ring.
491 */
492static void uvd_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
493 unsigned flags)
494{
495 WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
496
497 amdgpu_ring_write(ring, PACKET0(mmUVD_CONTEXT_ID, 0));
498 amdgpu_ring_write(ring, v: seq);
499 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0));
500 amdgpu_ring_write(ring, v: addr & 0xffffffff);
501 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0));
502 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
503 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_CMD, 0));
504 amdgpu_ring_write(ring, v: 0);
505
506 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0));
507 amdgpu_ring_write(ring, v: 0);
508 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0));
509 amdgpu_ring_write(ring, v: 0);
510 amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_CMD, 0));
511 amdgpu_ring_write(ring, v: 2);
512}
513
514/**
515 * uvd_v5_0_ring_test_ring - register write test
516 *
517 * @ring: amdgpu_ring pointer
518 *
519 * Test if we can successfully write to the context register
520 */
521static int uvd_v5_0_ring_test_ring(struct amdgpu_ring *ring)
522{
523 struct amdgpu_device *adev = ring->adev;
524 uint32_t tmp = 0;
525 unsigned i;
526 int r;
527
528 WREG32(mmUVD_CONTEXT_ID, 0xCAFEDEAD);
529 r = amdgpu_ring_alloc(ring, ndw: 3);
530 if (r)
531 return r;
532 amdgpu_ring_write(ring, PACKET0(mmUVD_CONTEXT_ID, 0));
533 amdgpu_ring_write(ring, v: 0xDEADBEEF);
534 amdgpu_ring_commit(ring);
535 for (i = 0; i < adev->usec_timeout; i++) {
536 tmp = RREG32(mmUVD_CONTEXT_ID);
537 if (tmp == 0xDEADBEEF)
538 break;
539 udelay(usec: 1);
540 }
541
542 if (i >= adev->usec_timeout)
543 r = -ETIMEDOUT;
544
545 return r;
546}
547
548/**
549 * uvd_v5_0_ring_emit_ib - execute indirect buffer
550 *
551 * @ring: amdgpu_ring pointer
552 * @job: job to retrieve vmid from
553 * @ib: indirect buffer to execute
554 * @flags: unused
555 *
556 * Write ring commands to execute the indirect buffer
557 */
558static void uvd_v5_0_ring_emit_ib(struct amdgpu_ring *ring,
559 struct amdgpu_job *job,
560 struct amdgpu_ib *ib,
561 uint32_t flags)
562{
563 amdgpu_ring_write(ring, PACKET0(mmUVD_LMI_RBC_IB_64BIT_BAR_LOW, 0));
564 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
565 amdgpu_ring_write(ring, PACKET0(mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH, 0));
566 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
567 amdgpu_ring_write(ring, PACKET0(mmUVD_RBC_IB_SIZE, 0));
568 amdgpu_ring_write(ring, v: ib->length_dw);
569}
570
571static void uvd_v5_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
572{
573 int i;
574
575 WARN_ON(ring->wptr % 2 || count % 2);
576
577 for (i = 0; i < count / 2; i++) {
578 amdgpu_ring_write(ring, PACKET0(mmUVD_NO_OP, 0));
579 amdgpu_ring_write(ring, v: 0);
580 }
581}
582
583static bool uvd_v5_0_is_idle(struct amdgpu_ip_block *ip_block)
584{
585 struct amdgpu_device *adev = ip_block->adev;
586
587 return !(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK);
588}
589
590static int uvd_v5_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
591{
592 unsigned i;
593 struct amdgpu_device *adev = ip_block->adev;
594
595 for (i = 0; i < adev->usec_timeout; i++) {
596 if (!(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK))
597 return 0;
598 }
599 return -ETIMEDOUT;
600}
601
602static int uvd_v5_0_soft_reset(struct amdgpu_ip_block *ip_block)
603{
604 struct amdgpu_device *adev = ip_block->adev;
605
606 uvd_v5_0_stop(adev);
607
608 WREG32_P(mmSRBM_SOFT_RESET, SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK,
609 ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
610 mdelay(5);
611
612 return uvd_v5_0_start(adev);
613}
614
615static int uvd_v5_0_set_interrupt_state(struct amdgpu_device *adev,
616 struct amdgpu_irq_src *source,
617 unsigned type,
618 enum amdgpu_interrupt_state state)
619{
620 // TODO
621 return 0;
622}
623
624static int uvd_v5_0_process_interrupt(struct amdgpu_device *adev,
625 struct amdgpu_irq_src *source,
626 struct amdgpu_iv_entry *entry)
627{
628 DRM_DEBUG("IH: UVD TRAP\n");
629 amdgpu_fence_process(ring: &adev->uvd.inst->ring);
630 return 0;
631}
632
633static void uvd_v5_0_enable_clock_gating(struct amdgpu_device *adev, bool enable)
634{
635 uint32_t data1, data3, suvd_flags;
636
637 data1 = RREG32(mmUVD_SUVD_CGC_GATE);
638 data3 = RREG32(mmUVD_CGC_GATE);
639
640 suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
641 UVD_SUVD_CGC_GATE__SIT_MASK |
642 UVD_SUVD_CGC_GATE__SMP_MASK |
643 UVD_SUVD_CGC_GATE__SCM_MASK |
644 UVD_SUVD_CGC_GATE__SDB_MASK;
645
646 if (enable) {
647 data3 |= (UVD_CGC_GATE__SYS_MASK |
648 UVD_CGC_GATE__UDEC_MASK |
649 UVD_CGC_GATE__MPEG2_MASK |
650 UVD_CGC_GATE__RBC_MASK |
651 UVD_CGC_GATE__LMI_MC_MASK |
652 UVD_CGC_GATE__IDCT_MASK |
653 UVD_CGC_GATE__MPRD_MASK |
654 UVD_CGC_GATE__MPC_MASK |
655 UVD_CGC_GATE__LBSI_MASK |
656 UVD_CGC_GATE__LRBBM_MASK |
657 UVD_CGC_GATE__UDEC_RE_MASK |
658 UVD_CGC_GATE__UDEC_CM_MASK |
659 UVD_CGC_GATE__UDEC_IT_MASK |
660 UVD_CGC_GATE__UDEC_DB_MASK |
661 UVD_CGC_GATE__UDEC_MP_MASK |
662 UVD_CGC_GATE__WCB_MASK |
663 UVD_CGC_GATE__JPEG_MASK |
664 UVD_CGC_GATE__SCPU_MASK);
665 /* only in pg enabled, we can gate clock to vcpu*/
666 if (adev->pg_flags & AMD_PG_SUPPORT_UVD)
667 data3 |= UVD_CGC_GATE__VCPU_MASK;
668 data3 &= ~UVD_CGC_GATE__REGS_MASK;
669 data1 |= suvd_flags;
670 } else {
671 data3 = 0;
672 data1 = 0;
673 }
674
675 WREG32(mmUVD_SUVD_CGC_GATE, data1);
676 WREG32(mmUVD_CGC_GATE, data3);
677}
678
679static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
680{
681 uint32_t data, data2;
682
683 data = RREG32(mmUVD_CGC_CTRL);
684 data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
685
686
687 data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
688 UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
689
690
691 data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
692 (1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
693 (4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
694
695 data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
696 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
697 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
698 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
699 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
700 UVD_CGC_CTRL__SYS_MODE_MASK |
701 UVD_CGC_CTRL__UDEC_MODE_MASK |
702 UVD_CGC_CTRL__MPEG2_MODE_MASK |
703 UVD_CGC_CTRL__REGS_MODE_MASK |
704 UVD_CGC_CTRL__RBC_MODE_MASK |
705 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
706 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
707 UVD_CGC_CTRL__IDCT_MODE_MASK |
708 UVD_CGC_CTRL__MPRD_MODE_MASK |
709 UVD_CGC_CTRL__MPC_MODE_MASK |
710 UVD_CGC_CTRL__LBSI_MODE_MASK |
711 UVD_CGC_CTRL__LRBBM_MODE_MASK |
712 UVD_CGC_CTRL__WCB_MODE_MASK |
713 UVD_CGC_CTRL__VCPU_MODE_MASK |
714 UVD_CGC_CTRL__JPEG_MODE_MASK |
715 UVD_CGC_CTRL__SCPU_MODE_MASK);
716 data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
717 UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
718 UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
719 UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
720 UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
721
722 WREG32(mmUVD_CGC_CTRL, data);
723 WREG32(mmUVD_SUVD_CGC_CTRL, data2);
724}
725
726#if 0
727static void uvd_v5_0_set_hw_clock_gating(struct amdgpu_device *adev)
728{
729 uint32_t data, data1, cgc_flags, suvd_flags;
730
731 data = RREG32(mmUVD_CGC_GATE);
732 data1 = RREG32(mmUVD_SUVD_CGC_GATE);
733
734 cgc_flags = UVD_CGC_GATE__SYS_MASK |
735 UVD_CGC_GATE__UDEC_MASK |
736 UVD_CGC_GATE__MPEG2_MASK |
737 UVD_CGC_GATE__RBC_MASK |
738 UVD_CGC_GATE__LMI_MC_MASK |
739 UVD_CGC_GATE__IDCT_MASK |
740 UVD_CGC_GATE__MPRD_MASK |
741 UVD_CGC_GATE__MPC_MASK |
742 UVD_CGC_GATE__LBSI_MASK |
743 UVD_CGC_GATE__LRBBM_MASK |
744 UVD_CGC_GATE__UDEC_RE_MASK |
745 UVD_CGC_GATE__UDEC_CM_MASK |
746 UVD_CGC_GATE__UDEC_IT_MASK |
747 UVD_CGC_GATE__UDEC_DB_MASK |
748 UVD_CGC_GATE__UDEC_MP_MASK |
749 UVD_CGC_GATE__WCB_MASK |
750 UVD_CGC_GATE__VCPU_MASK |
751 UVD_CGC_GATE__SCPU_MASK;
752
753 suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
754 UVD_SUVD_CGC_GATE__SIT_MASK |
755 UVD_SUVD_CGC_GATE__SMP_MASK |
756 UVD_SUVD_CGC_GATE__SCM_MASK |
757 UVD_SUVD_CGC_GATE__SDB_MASK;
758
759 data |= cgc_flags;
760 data1 |= suvd_flags;
761
762 WREG32(mmUVD_CGC_GATE, data);
763 WREG32(mmUVD_SUVD_CGC_GATE, data1);
764}
765#endif
766
767static void uvd_v5_0_enable_mgcg(struct amdgpu_device *adev,
768 bool enable)
769{
770 u32 orig, data;
771
772 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) {
773 data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
774 data |= 0xfff;
775 WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
776
777 orig = data = RREG32(mmUVD_CGC_CTRL);
778 data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
779 if (orig != data)
780 WREG32(mmUVD_CGC_CTRL, data);
781 } else {
782 data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
783 data &= ~0xfff;
784 WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
785
786 orig = data = RREG32(mmUVD_CGC_CTRL);
787 data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
788 if (orig != data)
789 WREG32(mmUVD_CGC_CTRL, data);
790 }
791}
792
793static int uvd_v5_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
794 enum amd_clockgating_state state)
795{
796 struct amdgpu_device *adev = ip_block->adev;
797 bool enable = (state == AMD_CG_STATE_GATE);
798
799 if (enable) {
800 /* wait for STATUS to clear */
801 if (uvd_v5_0_wait_for_idle(ip_block))
802 return -EBUSY;
803 uvd_v5_0_enable_clock_gating(adev, enable: true);
804
805 /* enable HW gates because UVD is idle */
806/* uvd_v5_0_set_hw_clock_gating(adev); */
807 } else {
808 uvd_v5_0_enable_clock_gating(adev, enable: false);
809 }
810
811 uvd_v5_0_set_sw_clock_gating(adev);
812 return 0;
813}
814
815static int uvd_v5_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
816 enum amd_powergating_state state)
817{
818 /* This doesn't actually powergate the UVD block.
819 * That's done in the dpm code via the SMC. This
820 * just re-inits the block as necessary. The actual
821 * gating still happens in the dpm code. We should
822 * revisit this when there is a cleaner line between
823 * the smc and the hw blocks
824 */
825 struct amdgpu_device *adev = ip_block->adev;
826 int ret = 0;
827
828 if (state == AMD_PG_STATE_GATE) {
829 uvd_v5_0_stop(adev);
830 } else {
831 ret = uvd_v5_0_start(adev);
832 if (ret)
833 goto out;
834 }
835
836out:
837 return ret;
838}
839
840static void uvd_v5_0_get_clockgating_state(struct amdgpu_ip_block *ip_block, u64 *flags)
841{
842 struct amdgpu_device *adev = ip_block->adev;
843 int data;
844
845 mutex_lock(&adev->pm.mutex);
846
847 if (RREG32_SMC(ixCURRENT_PG_STATUS) &
848 CURRENT_PG_STATUS__UVD_PG_STATUS_MASK) {
849 DRM_INFO("Cannot get clockgating state when UVD is powergated.\n");
850 goto out;
851 }
852
853 /* AMD_CG_SUPPORT_UVD_MGCG */
854 data = RREG32(mmUVD_CGC_CTRL);
855 if (data & UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK)
856 *flags |= AMD_CG_SUPPORT_UVD_MGCG;
857
858out:
859 mutex_unlock(lock: &adev->pm.mutex);
860}
861
862static const struct amd_ip_funcs uvd_v5_0_ip_funcs = {
863 .name = "uvd_v5_0",
864 .early_init = uvd_v5_0_early_init,
865 .sw_init = uvd_v5_0_sw_init,
866 .sw_fini = uvd_v5_0_sw_fini,
867 .hw_init = uvd_v5_0_hw_init,
868 .hw_fini = uvd_v5_0_hw_fini,
869 .prepare_suspend = uvd_v5_0_prepare_suspend,
870 .suspend = uvd_v5_0_suspend,
871 .resume = uvd_v5_0_resume,
872 .is_idle = uvd_v5_0_is_idle,
873 .wait_for_idle = uvd_v5_0_wait_for_idle,
874 .soft_reset = uvd_v5_0_soft_reset,
875 .set_clockgating_state = uvd_v5_0_set_clockgating_state,
876 .set_powergating_state = uvd_v5_0_set_powergating_state,
877 .get_clockgating_state = uvd_v5_0_get_clockgating_state,
878};
879
880static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
881 .type = AMDGPU_RING_TYPE_UVD,
882 .align_mask = 0xf,
883 .support_64bit_ptrs = false,
884 .no_user_fence = true,
885 .get_rptr = uvd_v5_0_ring_get_rptr,
886 .get_wptr = uvd_v5_0_ring_get_wptr,
887 .set_wptr = uvd_v5_0_ring_set_wptr,
888 .parse_cs = amdgpu_uvd_ring_parse_cs,
889 .emit_frame_size =
890 14, /* uvd_v5_0_ring_emit_fence x1 no user fence */
891 .emit_ib_size = 6, /* uvd_v5_0_ring_emit_ib */
892 .emit_ib = uvd_v5_0_ring_emit_ib,
893 .emit_fence = uvd_v5_0_ring_emit_fence,
894 .test_ring = uvd_v5_0_ring_test_ring,
895 .test_ib = amdgpu_uvd_ring_test_ib,
896 .insert_nop = uvd_v5_0_ring_insert_nop,
897 .pad_ib = amdgpu_ring_generic_pad_ib,
898 .begin_use = amdgpu_uvd_ring_begin_use,
899 .end_use = amdgpu_uvd_ring_end_use,
900};
901
902static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev)
903{
904 adev->uvd.inst->ring.funcs = &uvd_v5_0_ring_funcs;
905}
906
907static const struct amdgpu_irq_src_funcs uvd_v5_0_irq_funcs = {
908 .set = uvd_v5_0_set_interrupt_state,
909 .process = uvd_v5_0_process_interrupt,
910};
911
912static void uvd_v5_0_set_irq_funcs(struct amdgpu_device *adev)
913{
914 adev->uvd.inst->irq.num_types = 1;
915 adev->uvd.inst->irq.funcs = &uvd_v5_0_irq_funcs;
916}
917
918const struct amdgpu_ip_block_version uvd_v5_0_ip_block =
919{
920 .type = AMD_IP_BLOCK_TYPE_UVD,
921 .major = 5,
922 .minor = 0,
923 .rev = 0,
924 .funcs = &uvd_v5_0_ip_funcs,
925};
926

source code of linux/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c