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1/*
2 * Copyright 2019 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#include "amdgpu.h"
23#include "amdgpu_amdkfd.h"
24#include "gc/gc_10_1_0_offset.h"
25#include "gc/gc_10_1_0_sh_mask.h"
26#include "navi10_enum.h"
27#include "athub/athub_2_0_0_offset.h"
28#include "athub/athub_2_0_0_sh_mask.h"
29#include "oss/osssys_5_0_0_offset.h"
30#include "oss/osssys_5_0_0_sh_mask.h"
31#include "soc15_common.h"
32#include "v10_structs.h"
33#include "nv.h"
34#include "nvd.h"
35#include "gfxhub_v2_0.h"
36
37enum hqd_dequeue_request_type {
38 NO_ACTION = 0,
39 DRAIN_PIPE,
40 RESET_WAVES,
41 SAVE_WAVES
42};
43
44static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
45{
46 return (struct amdgpu_device *)kgd;
47}
48
49static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
50 uint32_t queue, uint32_t vmid)
51{
52 struct amdgpu_device *adev = get_amdgpu_device(kgd);
53
54 mutex_lock(&adev->srbm_mutex);
55 nv_grbm_select(adev, mec, pipe, queue, vmid);
56}
57
58static void unlock_srbm(struct kgd_dev *kgd)
59{
60 struct amdgpu_device *adev = get_amdgpu_device(kgd);
61
62 nv_grbm_select(adev, 0, 0, 0, 0);
63 mutex_unlock(&adev->srbm_mutex);
64}
65
66static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
67 uint32_t queue_id)
68{
69 struct amdgpu_device *adev = get_amdgpu_device(kgd);
70
71 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
72 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
73
74 lock_srbm(kgd, mec, pipe, queue_id, 0);
75}
76
77static uint64_t get_queue_mask(struct amdgpu_device *adev,
78 uint32_t pipe_id, uint32_t queue_id)
79{
80 unsigned int bit = pipe_id * adev->gfx.mec.num_queue_per_pipe +
81 queue_id;
82
83 return 1ull << bit;
84}
85
86static void release_queue(struct kgd_dev *kgd)
87{
88 unlock_srbm(kgd);
89}
90
91static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
92 uint32_t sh_mem_config,
93 uint32_t sh_mem_ape1_base,
94 uint32_t sh_mem_ape1_limit,
95 uint32_t sh_mem_bases)
96{
97 struct amdgpu_device *adev = get_amdgpu_device(kgd);
98
99 lock_srbm(kgd, 0, 0, 0, vmid);
100
101 WREG32(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_CONFIG), sh_mem_config);
102 WREG32(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_BASES), sh_mem_bases);
103 /* APE1 no longer exists on GFX9 */
104
105 unlock_srbm(kgd);
106}
107
108static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
109 unsigned int vmid)
110{
111 struct amdgpu_device *adev = get_amdgpu_device(kgd);
112
113 /*
114 * We have to assume that there is no outstanding mapping.
115 * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
116 * a mapping is in progress or because a mapping finished
117 * and the SW cleared it.
118 * So the protocol is to always wait & clear.
119 */
120 uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
121 ATC_VMID0_PASID_MAPPING__VALID_MASK;
122
123 pr_debug("pasid 0x%x vmid %d, reg value %x\n", pasid, vmid, pasid_mapping);
124
125 pr_debug("ATHUB, reg %x\n", SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid);
126 WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid,
127 pasid_mapping);
128
129#if 0
130 /* TODO: uncomment this code when the hardware support is ready. */
131 while (!(RREG32(SOC15_REG_OFFSET(
132 ATHUB, 0,
133 mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) &
134 (1U << vmid)))
135 cpu_relax();
136
137 pr_debug("ATHUB mapping update finished\n");
138 WREG32(SOC15_REG_OFFSET(ATHUB, 0,
139 mmATC_VMID_PASID_MAPPING_UPDATE_STATUS),
140 1U << vmid);
141#endif
142
143 /* Mapping vmid to pasid also for IH block */
144 pr_debug("update mapping for IH block and mmhub");
145 WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid,
146 pasid_mapping);
147
148 return 0;
149}
150
151/* TODO - RING0 form of field is obsolete, seems to date back to SI
152 * but still works
153 */
154
155static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
156{
157 struct amdgpu_device *adev = get_amdgpu_device(kgd);
158 uint32_t mec;
159 uint32_t pipe;
160
161 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
162 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
163
164 lock_srbm(kgd, mec, pipe, 0, 0);
165
166 WREG32(SOC15_REG_OFFSET(GC, 0, mmCPC_INT_CNTL),
167 CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
168 CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
169
170 unlock_srbm(kgd);
171
172 return 0;
173}
174
175static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
176 unsigned int engine_id,
177 unsigned int queue_id)
178{
179 uint32_t sdma_engine_reg_base[2] = {
180 SOC15_REG_OFFSET(SDMA0, 0,
181 mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL,
182 /* On gfx10, mmSDMA1_xxx registers are defined NOT based
183 * on SDMA1 base address (dw 0x1860) but based on SDMA0
184 * base address (dw 0x1260). Therefore use mmSDMA0_RLC0_RB_CNTL
185 * instead of mmSDMA1_RLC0_RB_CNTL for the base address calc
186 * below
187 */
188 SOC15_REG_OFFSET(SDMA1, 0,
189 mmSDMA1_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL
190 };
191
192 uint32_t retval = sdma_engine_reg_base[engine_id]
193 + queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL);
194
195 pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
196 queue_id, retval);
197
198 return retval;
199}
200
201#if 0
202static uint32_t get_watch_base_addr(struct amdgpu_device *adev)
203{
204 uint32_t retval = SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_H) -
205 mmTCP_WATCH0_ADDR_H;
206
207 pr_debug("kfd: reg watch base address: 0x%x\n", retval);
208
209 return retval;
210}
211#endif
212
213static inline struct v10_compute_mqd *get_mqd(void *mqd)
214{
215 return (struct v10_compute_mqd *)mqd;
216}
217
218static inline struct v10_sdma_mqd *get_sdma_mqd(void *mqd)
219{
220 return (struct v10_sdma_mqd *)mqd;
221}
222
223static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
224 uint32_t queue_id, uint32_t __user *wptr,
225 uint32_t wptr_shift, uint32_t wptr_mask,
226 struct mm_struct *mm)
227{
228 struct amdgpu_device *adev = get_amdgpu_device(kgd);
229 struct v10_compute_mqd *m;
230 uint32_t *mqd_hqd;
231 uint32_t reg, hqd_base, data;
232
233 m = get_mqd(mqd);
234
235 pr_debug("Load hqd of pipe %d queue %d\n", pipe_id, queue_id);
236 acquire_queue(kgd, pipe_id, queue_id);
237
238 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
239 mqd_hqd = &m->cp_mqd_base_addr_lo;
240 hqd_base = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
241
242 for (reg = hqd_base;
243 reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
244 WREG32(reg, mqd_hqd[reg - hqd_base]);
245
246
247 /* Activate doorbell logic before triggering WPTR poll. */
248 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
249 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
250 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL), data);
251
252 if (wptr) {
253 /* Don't read wptr with get_user because the user
254 * context may not be accessible (if this function
255 * runs in a work queue). Instead trigger a one-shot
256 * polling read from memory in the CP. This assumes
257 * that wptr is GPU-accessible in the queue's VMID via
258 * ATC or SVM. WPTR==RPTR before starting the poll so
259 * the CP starts fetching new commands from the right
260 * place.
261 *
262 * Guessing a 64-bit WPTR from a 32-bit RPTR is a bit
263 * tricky. Assume that the queue didn't overflow. The
264 * number of valid bits in the 32-bit RPTR depends on
265 * the queue size. The remaining bits are taken from
266 * the saved 64-bit WPTR. If the WPTR wrapped, add the
267 * queue size.
268 */
269 uint32_t queue_size =
270 2 << REG_GET_FIELD(m->cp_hqd_pq_control,
271 CP_HQD_PQ_CONTROL, QUEUE_SIZE);
272 uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1);
273
274 if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr)
275 guessed_wptr += queue_size;
276 guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1);
277 guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32;
278
279 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_LO),
280 lower_32_bits(guessed_wptr));
281 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI),
282 upper_32_bits(guessed_wptr));
283 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR),
284 lower_32_bits((uint64_t)wptr));
285 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR_HI),
286 upper_32_bits((uint64_t)wptr));
287 pr_debug("%s setting CP_PQ_WPTR_POLL_CNTL1 to %x\n", __func__,
288 (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
289 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_PQ_WPTR_POLL_CNTL1),
290 (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
291 }
292
293 /* Start the EOP fetcher */
294 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_EOP_RPTR),
295 REG_SET_FIELD(m->cp_hqd_eop_rptr,
296 CP_HQD_EOP_RPTR, INIT_FETCHER, 1));
297
298 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
299 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE), data);
300
301 release_queue(kgd);
302
303 return 0;
304}
305
306static int kgd_hiq_mqd_load(struct kgd_dev *kgd, void *mqd,
307 uint32_t pipe_id, uint32_t queue_id,
308 uint32_t doorbell_off)
309{
310 struct amdgpu_device *adev = get_amdgpu_device(kgd);
311 struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring;
312 struct v10_compute_mqd *m;
313 uint32_t mec, pipe;
314 int r;
315
316 m = get_mqd(mqd);
317
318 acquire_queue(kgd, pipe_id, queue_id);
319
320 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
321 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
322
323 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
324 mec, pipe, queue_id);
325
326 spin_lock(&adev->gfx.kiq.ring_lock);
327 r = amdgpu_ring_alloc(kiq_ring, 7);
328 if (r) {
329 pr_err("Failed to alloc KIQ (%d).\n", r);
330 goto out_unlock;
331 }
332
333 amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_MAP_QUEUES, 5));
334 amdgpu_ring_write(kiq_ring,
335 PACKET3_MAP_QUEUES_QUEUE_SEL(0) | /* Queue_Sel */
336 PACKET3_MAP_QUEUES_VMID(m->cp_hqd_vmid) | /* VMID */
337 PACKET3_MAP_QUEUES_QUEUE(queue_id) |
338 PACKET3_MAP_QUEUES_PIPE(pipe) |
339 PACKET3_MAP_QUEUES_ME((mec - 1)) |
340 PACKET3_MAP_QUEUES_QUEUE_TYPE(0) | /*queue_type: normal compute queue */
341 PACKET3_MAP_QUEUES_ALLOC_FORMAT(0) | /* alloc format: all_on_one_pipe */
342 PACKET3_MAP_QUEUES_ENGINE_SEL(1) | /* engine_sel: hiq */
343 PACKET3_MAP_QUEUES_NUM_QUEUES(1)); /* num_queues: must be 1 */
344 amdgpu_ring_write(kiq_ring,
345 PACKET3_MAP_QUEUES_DOORBELL_OFFSET(doorbell_off));
346 amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_lo);
347 amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_hi);
348 amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_lo);
349 amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_hi);
350 amdgpu_ring_commit(kiq_ring);
351
352out_unlock:
353 spin_unlock(&adev->gfx.kiq.ring_lock);
354 release_queue(kgd);
355
356 return r;
357}
358
359static int kgd_hqd_dump(struct kgd_dev *kgd,
360 uint32_t pipe_id, uint32_t queue_id,
361 uint32_t (**dump)[2], uint32_t *n_regs)
362{
363 struct amdgpu_device *adev = get_amdgpu_device(kgd);
364 uint32_t i = 0, reg;
365#define HQD_N_REGS 56
366#define DUMP_REG(addr) do { \
367 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
368 break; \
369 (*dump)[i][0] = (addr) << 2; \
370 (*dump)[i++][1] = RREG32(addr); \
371 } while (0)
372
373 *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
374 if (*dump == NULL)
375 return -ENOMEM;
376
377 acquire_queue(kgd, pipe_id, queue_id);
378
379 for (reg = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
380 reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
381 DUMP_REG(reg);
382
383 release_queue(kgd);
384
385 WARN_ON_ONCE(i != HQD_N_REGS);
386 *n_regs = i;
387
388 return 0;
389}
390
391static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
392 uint32_t __user *wptr, struct mm_struct *mm)
393{
394 struct amdgpu_device *adev = get_amdgpu_device(kgd);
395 struct v10_sdma_mqd *m;
396 uint32_t sdma_rlc_reg_offset;
397 unsigned long end_jiffies;
398 uint32_t data;
399 uint64_t data64;
400 uint64_t __user *wptr64 = (uint64_t __user *)wptr;
401
402 m = get_sdma_mqd(mqd);
403 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
404 m->sdma_queue_id);
405
406 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
407 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
408
409 end_jiffies = msecs_to_jiffies(2000) + jiffies;
410 while (true) {
411 data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
412 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
413 break;
414 if (time_after(jiffies, end_jiffies)) {
415 pr_err("SDMA RLC not idle in %s\n", __func__);
416 return -ETIME;
417 }
418 usleep_range(500, 1000);
419 }
420
421 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL_OFFSET,
422 m->sdmax_rlcx_doorbell_offset);
423
424 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
425 ENABLE, 1);
426 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data);
427 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR,
428 m->sdmax_rlcx_rb_rptr);
429 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI,
430 m->sdmax_rlcx_rb_rptr_hi);
431
432 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1);
433 if (read_user_wptr(mm, wptr64, data64)) {
434 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
435 lower_32_bits(data64));
436 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
437 upper_32_bits(data64));
438 } else {
439 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
440 m->sdmax_rlcx_rb_rptr);
441 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
442 m->sdmax_rlcx_rb_rptr_hi);
443 }
444 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0);
445
446 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
447 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI,
448 m->sdmax_rlcx_rb_base_hi);
449 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
450 m->sdmax_rlcx_rb_rptr_addr_lo);
451 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
452 m->sdmax_rlcx_rb_rptr_addr_hi);
453
454 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
455 RB_ENABLE, 1);
456 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data);
457
458 return 0;
459}
460
461static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
462 uint32_t engine_id, uint32_t queue_id,
463 uint32_t (**dump)[2], uint32_t *n_regs)
464{
465 struct amdgpu_device *adev = get_amdgpu_device(kgd);
466 uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
467 engine_id, queue_id);
468 uint32_t i = 0, reg;
469#undef HQD_N_REGS
470#define HQD_N_REGS (19+6+7+10)
471
472 *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
473 if (*dump == NULL)
474 return -ENOMEM;
475
476 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
477 DUMP_REG(sdma_rlc_reg_offset + reg);
478 for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++)
479 DUMP_REG(sdma_rlc_reg_offset + reg);
480 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN;
481 reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++)
482 DUMP_REG(sdma_rlc_reg_offset + reg);
483 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0;
484 reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++)
485 DUMP_REG(sdma_rlc_reg_offset + reg);
486
487 WARN_ON_ONCE(i != HQD_N_REGS);
488 *n_regs = i;
489
490 return 0;
491}
492
493static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
494 uint32_t pipe_id, uint32_t queue_id)
495{
496 struct amdgpu_device *adev = get_amdgpu_device(kgd);
497 uint32_t act;
498 bool retval = false;
499 uint32_t low, high;
500
501 acquire_queue(kgd, pipe_id, queue_id);
502 act = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE));
503 if (act) {
504 low = lower_32_bits(queue_address >> 8);
505 high = upper_32_bits(queue_address >> 8);
506
507 if (low == RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_BASE)) &&
508 high == RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_BASE_HI)))
509 retval = true;
510 }
511 release_queue(kgd);
512 return retval;
513}
514
515static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
516{
517 struct amdgpu_device *adev = get_amdgpu_device(kgd);
518 struct v10_sdma_mqd *m;
519 uint32_t sdma_rlc_reg_offset;
520 uint32_t sdma_rlc_rb_cntl;
521
522 m = get_sdma_mqd(mqd);
523 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
524 m->sdma_queue_id);
525
526 sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
527
528 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
529 return true;
530
531 return false;
532}
533
534static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
535 enum kfd_preempt_type reset_type,
536 unsigned int utimeout, uint32_t pipe_id,
537 uint32_t queue_id)
538{
539 struct amdgpu_device *adev = get_amdgpu_device(kgd);
540 enum hqd_dequeue_request_type type;
541 unsigned long end_jiffies;
542 uint32_t temp;
543 struct v10_compute_mqd *m = get_mqd(mqd);
544
545 if (adev->in_gpu_reset)
546 return -EIO;
547
548#if 0
549 unsigned long flags;
550 int retry;
551#endif
552
553 acquire_queue(kgd, pipe_id, queue_id);
554
555 if (m->cp_hqd_vmid == 0)
556 WREG32_FIELD15(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0);
557
558 switch (reset_type) {
559 case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
560 type = DRAIN_PIPE;
561 break;
562 case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
563 type = RESET_WAVES;
564 break;
565 default:
566 type = DRAIN_PIPE;
567 break;
568 }
569
570#if 0 /* Is this still needed? */
571 /* Workaround: If IQ timer is active and the wait time is close to or
572 * equal to 0, dequeueing is not safe. Wait until either the wait time
573 * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
574 * cleared before continuing. Also, ensure wait times are set to at
575 * least 0x3.
576 */
577 local_irq_save(flags);
578 preempt_disable();
579 retry = 5000; /* wait for 500 usecs at maximum */
580 while (true) {
581 temp = RREG32(mmCP_HQD_IQ_TIMER);
582 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
583 pr_debug("HW is processing IQ\n");
584 goto loop;
585 }
586 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
587 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
588 == 3) /* SEM-rearm is safe */
589 break;
590 /* Wait time 3 is safe for CP, but our MMIO read/write
591 * time is close to 1 microsecond, so check for 10 to
592 * leave more buffer room
593 */
594 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
595 >= 10)
596 break;
597 pr_debug("IQ timer is active\n");
598 } else
599 break;
600loop:
601 if (!retry) {
602 pr_err("CP HQD IQ timer status time out\n");
603 break;
604 }
605 ndelay(100);
606 --retry;
607 }
608 retry = 1000;
609 while (true) {
610 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
611 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
612 break;
613 pr_debug("Dequeue request is pending\n");
614
615 if (!retry) {
616 pr_err("CP HQD dequeue request time out\n");
617 break;
618 }
619 ndelay(100);
620 --retry;
621 }
622 local_irq_restore(flags);
623 preempt_enable();
624#endif
625
626 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_DEQUEUE_REQUEST), type);
627
628 end_jiffies = (utimeout * HZ / 1000) + jiffies;
629 while (true) {
630 temp = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE));
631 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
632 break;
633 if (time_after(jiffies, end_jiffies)) {
634 pr_err("cp queue preemption time out.\n");
635 release_queue(kgd);
636 return -ETIME;
637 }
638 usleep_range(500, 1000);
639 }
640
641 release_queue(kgd);
642 return 0;
643}
644
645static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
646 unsigned int utimeout)
647{
648 struct amdgpu_device *adev = get_amdgpu_device(kgd);
649 struct v10_sdma_mqd *m;
650 uint32_t sdma_rlc_reg_offset;
651 uint32_t temp;
652 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
653
654 m = get_sdma_mqd(mqd);
655 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
656 m->sdma_queue_id);
657
658 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
659 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
660 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp);
661
662 while (true) {
663 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
664 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
665 break;
666 if (time_after(jiffies, end_jiffies)) {
667 pr_err("SDMA RLC not idle in %s\n", __func__);
668 return -ETIME;
669 }
670 usleep_range(500, 1000);
671 }
672
673 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0);
674 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
675 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) |
676 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
677
678 m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR);
679 m->sdmax_rlcx_rb_rptr_hi =
680 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI);
681
682 return 0;
683}
684
685static bool get_atc_vmid_pasid_mapping_info(struct kgd_dev *kgd,
686 uint8_t vmid, uint16_t *p_pasid)
687{
688 uint32_t value;
689 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
690
691 value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
692 + vmid);
693 *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK;
694
695 return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK);
696}
697
698static int kgd_address_watch_disable(struct kgd_dev *kgd)
699{
700 return 0;
701}
702
703static int kgd_address_watch_execute(struct kgd_dev *kgd,
704 unsigned int watch_point_id,
705 uint32_t cntl_val,
706 uint32_t addr_hi,
707 uint32_t addr_lo)
708{
709 return 0;
710}
711
712static int kgd_wave_control_execute(struct kgd_dev *kgd,
713 uint32_t gfx_index_val,
714 uint32_t sq_cmd)
715{
716 struct amdgpu_device *adev = get_amdgpu_device(kgd);
717 uint32_t data = 0;
718
719 mutex_lock(&adev->grbm_idx_mutex);
720
721 WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_INDEX), gfx_index_val);
722 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_CMD), sq_cmd);
723
724 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
725 INSTANCE_BROADCAST_WRITES, 1);
726 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
727 SA_BROADCAST_WRITES, 1);
728 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
729 SE_BROADCAST_WRITES, 1);
730
731 WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_INDEX), data);
732 mutex_unlock(&adev->grbm_idx_mutex);
733
734 return 0;
735}
736
737static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
738 unsigned int watch_point_id,
739 unsigned int reg_offset)
740{
741 return 0;
742}
743
744static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
745 uint64_t page_table_base)
746{
747 struct amdgpu_device *adev = get_amdgpu_device(kgd);
748
749 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
750 pr_err("trying to set page table base for wrong VMID %u\n",
751 vmid);
752 return;
753 }
754
755 /* SDMA is on gfxhub as well for Navi1* series */
756 gfxhub_v2_0_setup_vm_pt_regs(adev, vmid, page_table_base);
757}
758
759const struct kfd2kgd_calls gfx_v10_kfd2kgd = {
760 .program_sh_mem_settings = kgd_program_sh_mem_settings,
761 .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
762 .init_interrupts = kgd_init_interrupts,
763 .hqd_load = kgd_hqd_load,
764 .hiq_mqd_load = kgd_hiq_mqd_load,
765 .hqd_sdma_load = kgd_hqd_sdma_load,
766 .hqd_dump = kgd_hqd_dump,
767 .hqd_sdma_dump = kgd_hqd_sdma_dump,
768 .hqd_is_occupied = kgd_hqd_is_occupied,
769 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
770 .hqd_destroy = kgd_hqd_destroy,
771 .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
772 .address_watch_disable = kgd_address_watch_disable,
773 .address_watch_execute = kgd_address_watch_execute,
774 .wave_control_execute = kgd_wave_control_execute,
775 .address_watch_get_offset = kgd_address_watch_get_offset,
776 .get_atc_vmid_pasid_mapping_info =
777 get_atc_vmid_pasid_mapping_info,
778 .set_vm_context_page_table_base = set_vm_context_page_table_base,
779 .get_hive_id = amdgpu_amdkfd_get_hive_id,
780 .get_unique_id = amdgpu_amdkfd_get_unique_id,
781};