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 <linux/mmu_context.h>
23#include "amdgpu.h"
24#include "amdgpu_amdkfd.h"
25#include "amdgpu_amdkfd_gfx_v10.h"
26#include "gc/gc_10_3_0_offset.h"
27#include "gc/gc_10_3_0_sh_mask.h"
28#include "oss/osssys_5_0_0_offset.h"
29#include "oss/osssys_5_0_0_sh_mask.h"
30#include "athub/athub_2_1_0_offset.h"
31#include "athub/athub_2_1_0_sh_mask.h"
32#include "soc15_common.h"
33#include "v10_structs.h"
34#include "nv.h"
35#include "nvd.h"
36
37enum hqd_dequeue_request_type {
38 NO_ACTION = 0,
39 DRAIN_PIPE,
40 RESET_WAVES,
41 SAVE_WAVES
42};
43
44static void lock_srbm(struct amdgpu_device *adev, uint32_t mec, uint32_t pipe,
45 uint32_t queue, uint32_t vmid)
46{
47 mutex_lock(&adev->srbm_mutex);
48 nv_grbm_select(adev, me: mec, pipe, queue, vmid);
49}
50
51static void unlock_srbm(struct amdgpu_device *adev)
52{
53 nv_grbm_select(adev, me: 0, pipe: 0, queue: 0, vmid: 0);
54 mutex_unlock(lock: &adev->srbm_mutex);
55}
56
57static void acquire_queue(struct amdgpu_device *adev, uint32_t pipe_id,
58 uint32_t queue_id)
59{
60 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
61 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
62
63 lock_srbm(adev, mec, pipe, queue: queue_id, vmid: 0);
64}
65
66static uint64_t get_queue_mask(struct amdgpu_device *adev,
67 uint32_t pipe_id, uint32_t queue_id)
68{
69 unsigned int bit = pipe_id * adev->gfx.mec.num_queue_per_pipe +
70 queue_id;
71
72 return 1ull << bit;
73}
74
75static void release_queue(struct amdgpu_device *adev)
76{
77 unlock_srbm(adev);
78}
79
80static void program_sh_mem_settings_v10_3(struct amdgpu_device *adev, uint32_t vmid,
81 uint32_t sh_mem_config,
82 uint32_t sh_mem_ape1_base,
83 uint32_t sh_mem_ape1_limit,
84 uint32_t sh_mem_bases, uint32_t inst)
85{
86 lock_srbm(adev, mec: 0, pipe: 0, queue: 0, vmid);
87
88 WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, sh_mem_config);
89 WREG32_SOC15(GC, 0, mmSH_MEM_BASES, sh_mem_bases);
90 /* APE1 no longer exists on GFX9 */
91
92 unlock_srbm(adev);
93}
94
95/* ATC is defeatured on Sienna_Cichlid */
96static int set_pasid_vmid_mapping_v10_3(struct amdgpu_device *adev, unsigned int pasid,
97 unsigned int vmid, uint32_t inst)
98{
99 uint32_t value = pasid << IH_VMID_0_LUT__PASID__SHIFT;
100
101 /* Mapping vmid to pasid also for IH block */
102 pr_debug("mapping vmid %d -> pasid %d in IH block for GFX client\n",
103 vmid, pasid);
104 WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid, value);
105
106 return 0;
107}
108
109static int init_interrupts_v10_3(struct amdgpu_device *adev, uint32_t pipe_id,
110 uint32_t inst)
111{
112 uint32_t mec;
113 uint32_t pipe;
114
115 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
116 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
117
118 lock_srbm(adev, mec, pipe, queue: 0, vmid: 0);
119
120 WREG32_SOC15(GC, 0, mmCPC_INT_CNTL,
121 CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
122 CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
123
124 unlock_srbm(adev);
125
126 return 0;
127}
128
129static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
130 unsigned int engine_id,
131 unsigned int queue_id)
132{
133 uint32_t sdma_engine_reg_base = 0;
134 uint32_t sdma_rlc_reg_offset;
135
136 switch (engine_id) {
137 default:
138 dev_warn(adev->dev,
139 "Invalid sdma engine id (%d), using engine id 0\n",
140 engine_id);
141 fallthrough;
142 case 0:
143 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
144 mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
145 break;
146 case 1:
147 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
148 mmSDMA1_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
149 break;
150 case 2:
151 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
152 mmSDMA2_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
153 break;
154 case 3:
155 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
156 mmSDMA3_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
157 break;
158 }
159
160 sdma_rlc_reg_offset = sdma_engine_reg_base
161 + queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL);
162
163 pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
164 queue_id, sdma_rlc_reg_offset);
165
166 return sdma_rlc_reg_offset;
167}
168
169static inline struct v10_compute_mqd *get_mqd(void *mqd)
170{
171 return (struct v10_compute_mqd *)mqd;
172}
173
174static inline struct v10_sdma_mqd *get_sdma_mqd(void *mqd)
175{
176 return (struct v10_sdma_mqd *)mqd;
177}
178
179static int hqd_load_v10_3(struct amdgpu_device *adev, void *mqd,
180 uint32_t pipe_id, uint32_t queue_id,
181 uint32_t __user *wptr, uint32_t wptr_shift,
182 uint32_t wptr_mask, struct mm_struct *mm, uint32_t inst)
183{
184 struct v10_compute_mqd *m;
185 uint32_t *mqd_hqd;
186 uint32_t reg, hqd_base, data;
187
188 m = get_mqd(mqd);
189
190 pr_debug("Load hqd of pipe %d queue %d\n", pipe_id, queue_id);
191 acquire_queue(adev, pipe_id, queue_id);
192
193 /* HIQ is set during driver init period with vmid set to 0*/
194 if (m->cp_hqd_vmid == 0) {
195 uint32_t value, mec, pipe;
196
197 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
198 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
199
200 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
201 mec, pipe, queue_id);
202 value = RREG32_SOC15(GC, 0, mmRLC_CP_SCHEDULERS);
203 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
204 ((mec << 5) | (pipe << 3) | queue_id | 0x80));
205 WREG32_SOC15(GC, 0, mmRLC_CP_SCHEDULERS, value);
206 }
207
208 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
209 mqd_hqd = &m->cp_mqd_base_addr_lo;
210 hqd_base = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
211
212 for (reg = hqd_base;
213 reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
214 WREG32_SOC15_IP(GC, reg, mqd_hqd[reg - hqd_base]);
215
216
217 /* Activate doorbell logic before triggering WPTR poll. */
218 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
219 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
220 WREG32_SOC15(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL, data);
221
222 if (wptr) {
223 /* Don't read wptr with get_user because the user
224 * context may not be accessible (if this function
225 * runs in a work queue). Instead trigger a one-shot
226 * polling read from memory in the CP. This assumes
227 * that wptr is GPU-accessible in the queue's VMID via
228 * ATC or SVM. WPTR==RPTR before starting the poll so
229 * the CP starts fetching new commands from the right
230 * place.
231 *
232 * Guessing a 64-bit WPTR from a 32-bit RPTR is a bit
233 * tricky. Assume that the queue didn't overflow. The
234 * number of valid bits in the 32-bit RPTR depends on
235 * the queue size. The remaining bits are taken from
236 * the saved 64-bit WPTR. If the WPTR wrapped, add the
237 * queue size.
238 */
239 uint32_t queue_size =
240 2 << REG_GET_FIELD(m->cp_hqd_pq_control,
241 CP_HQD_PQ_CONTROL, QUEUE_SIZE);
242 uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1);
243
244 if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr)
245 guessed_wptr += queue_size;
246 guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1);
247 guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32;
248
249 WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_LO,
250 lower_32_bits(guessed_wptr));
251 WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_HI,
252 upper_32_bits(guessed_wptr));
253 WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR,
254 lower_32_bits((uint64_t)wptr));
255 WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR_HI,
256 upper_32_bits((uint64_t)wptr));
257 pr_debug("%s setting CP_PQ_WPTR_POLL_CNTL1 to %x\n", __func__,
258 (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
259 WREG32_SOC15(GC, 0, mmCP_PQ_WPTR_POLL_CNTL1,
260 (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
261 }
262
263 /* Start the EOP fetcher */
264 WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_EOP_RPTR),
265 REG_SET_FIELD(m->cp_hqd_eop_rptr,
266 CP_HQD_EOP_RPTR, INIT_FETCHER, 1));
267
268 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
269 WREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE, data);
270
271 release_queue(adev);
272
273 return 0;
274}
275
276static int hiq_mqd_load_v10_3(struct amdgpu_device *adev, void *mqd,
277 uint32_t pipe_id, uint32_t queue_id,
278 uint32_t doorbell_off, uint32_t inst)
279{
280 struct amdgpu_ring *kiq_ring = &adev->gfx.kiq[0].ring;
281 struct v10_compute_mqd *m;
282 uint32_t mec, pipe;
283 int r;
284
285 m = get_mqd(mqd);
286
287 acquire_queue(adev, pipe_id, queue_id);
288
289 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
290 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
291
292 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
293 mec, pipe, queue_id);
294
295 spin_lock(lock: &adev->gfx.kiq[0].ring_lock);
296 r = amdgpu_ring_alloc(ring: kiq_ring, ndw: 7);
297 if (r) {
298 pr_err("Failed to alloc KIQ (%d).\n", r);
299 goto out_unlock;
300 }
301
302 amdgpu_ring_write(ring: kiq_ring, PACKET3(PACKET3_MAP_QUEUES, 5));
303 amdgpu_ring_write(ring: kiq_ring,
304 PACKET3_MAP_QUEUES_QUEUE_SEL(0) | /* Queue_Sel */
305 PACKET3_MAP_QUEUES_VMID(m->cp_hqd_vmid) | /* VMID */
306 PACKET3_MAP_QUEUES_QUEUE(queue_id) |
307 PACKET3_MAP_QUEUES_PIPE(pipe) |
308 PACKET3_MAP_QUEUES_ME((mec - 1)) |
309 PACKET3_MAP_QUEUES_QUEUE_TYPE(0) | /*queue_type: normal compute queue */
310 PACKET3_MAP_QUEUES_ALLOC_FORMAT(0) | /* alloc format: all_on_one_pipe */
311 PACKET3_MAP_QUEUES_ENGINE_SEL(1) | /* engine_sel: hiq */
312 PACKET3_MAP_QUEUES_NUM_QUEUES(1)); /* num_queues: must be 1 */
313 amdgpu_ring_write(ring: kiq_ring,
314 PACKET3_MAP_QUEUES_DOORBELL_OFFSET(doorbell_off));
315 amdgpu_ring_write(ring: kiq_ring, v: m->cp_mqd_base_addr_lo);
316 amdgpu_ring_write(ring: kiq_ring, v: m->cp_mqd_base_addr_hi);
317 amdgpu_ring_write(ring: kiq_ring, v: m->cp_hqd_pq_wptr_poll_addr_lo);
318 amdgpu_ring_write(ring: kiq_ring, v: m->cp_hqd_pq_wptr_poll_addr_hi);
319 amdgpu_ring_commit(ring: kiq_ring);
320
321out_unlock:
322 spin_unlock(lock: &adev->gfx.kiq[0].ring_lock);
323 release_queue(adev);
324
325 return r;
326}
327
328static int hqd_dump_v10_3(struct amdgpu_device *adev,
329 uint32_t pipe_id, uint32_t queue_id,
330 uint32_t (**dump)[2], uint32_t *n_regs, uint32_t inst)
331{
332 uint32_t i = 0, reg;
333#define HQD_N_REGS 56
334#define DUMP_REG(addr) do { \
335 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
336 break; \
337 (*dump)[i][0] = (addr) << 2; \
338 (*dump)[i++][1] = RREG32_SOC15_IP(GC, addr); \
339 } while (0)
340
341 *dump = kmalloc_array(HQD_N_REGS, sizeof(**dump), GFP_KERNEL);
342 if (*dump == NULL)
343 return -ENOMEM;
344
345 acquire_queue(adev, pipe_id, queue_id);
346
347 for (reg = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
348 reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
349 DUMP_REG(reg);
350
351 release_queue(adev);
352
353 WARN_ON_ONCE(i != HQD_N_REGS);
354 *n_regs = i;
355
356 return 0;
357}
358
359static int hqd_sdma_load_v10_3(struct amdgpu_device *adev, void *mqd,
360 uint32_t __user *wptr, struct mm_struct *mm)
361{
362 struct v10_sdma_mqd *m;
363 uint32_t sdma_rlc_reg_offset;
364 unsigned long end_jiffies;
365 uint32_t data;
366 uint64_t data64;
367 uint64_t __user *wptr64 = (uint64_t __user *)wptr;
368
369 m = get_sdma_mqd(mqd);
370 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, engine_id: m->sdma_engine_id,
371 queue_id: m->sdma_queue_id);
372
373 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
374 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
375
376 end_jiffies = msecs_to_jiffies(m: 2000) + jiffies;
377 while (true) {
378 data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
379 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
380 break;
381 if (time_after(jiffies, end_jiffies)) {
382 pr_err("SDMA RLC not idle in %s\n", __func__);
383 return -ETIME;
384 }
385 usleep_range(min: 500, max: 1000);
386 }
387
388 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL_OFFSET,
389 m->sdmax_rlcx_doorbell_offset);
390
391 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
392 ENABLE, 1);
393 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data);
394 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR,
395 m->sdmax_rlcx_rb_rptr);
396 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI,
397 m->sdmax_rlcx_rb_rptr_hi);
398
399 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1);
400 if (read_user_wptr(mm, wptr64, data64)) {
401 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
402 lower_32_bits(data64));
403 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
404 upper_32_bits(data64));
405 } else {
406 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
407 m->sdmax_rlcx_rb_rptr);
408 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
409 m->sdmax_rlcx_rb_rptr_hi);
410 }
411 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0);
412
413 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
414 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI,
415 m->sdmax_rlcx_rb_base_hi);
416 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
417 m->sdmax_rlcx_rb_rptr_addr_lo);
418 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
419 m->sdmax_rlcx_rb_rptr_addr_hi);
420
421 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
422 RB_ENABLE, 1);
423 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data);
424
425 return 0;
426}
427
428static int hqd_sdma_dump_v10_3(struct amdgpu_device *adev,
429 uint32_t engine_id, uint32_t queue_id,
430 uint32_t (**dump)[2], uint32_t *n_regs)
431{
432 uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
433 engine_id, queue_id);
434 uint32_t i = 0, reg;
435#undef HQD_N_REGS
436#define HQD_N_REGS (19+6+7+12)
437
438 *dump = kmalloc_array(HQD_N_REGS, sizeof(**dump), GFP_KERNEL);
439 if (*dump == NULL)
440 return -ENOMEM;
441
442 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
443 DUMP_REG(sdma_rlc_reg_offset + reg);
444 for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++)
445 DUMP_REG(sdma_rlc_reg_offset + reg);
446 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN;
447 reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++)
448 DUMP_REG(sdma_rlc_reg_offset + reg);
449 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0;
450 reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++)
451 DUMP_REG(sdma_rlc_reg_offset + reg);
452
453 WARN_ON_ONCE(i != HQD_N_REGS);
454 *n_regs = i;
455
456 return 0;
457}
458
459static bool hqd_is_occupied_v10_3(struct amdgpu_device *adev,
460 uint64_t queue_address, uint32_t pipe_id,
461 uint32_t queue_id, uint32_t inst)
462{
463 uint32_t act;
464 bool retval = false;
465 uint32_t low, high;
466
467 acquire_queue(adev, pipe_id, queue_id);
468 act = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE);
469 if (act) {
470 low = lower_32_bits(queue_address >> 8);
471 high = upper_32_bits(queue_address >> 8);
472
473 if (low == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE) &&
474 high == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE_HI))
475 retval = true;
476 }
477 release_queue(adev);
478 return retval;
479}
480
481static bool hqd_sdma_is_occupied_v10_3(struct amdgpu_device *adev,
482 void *mqd)
483{
484 struct v10_sdma_mqd *m;
485 uint32_t sdma_rlc_reg_offset;
486 uint32_t sdma_rlc_rb_cntl;
487
488 m = get_sdma_mqd(mqd);
489 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, engine_id: m->sdma_engine_id,
490 queue_id: m->sdma_queue_id);
491
492 sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
493
494 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
495 return true;
496
497 return false;
498}
499
500static int hqd_destroy_v10_3(struct amdgpu_device *adev, void *mqd,
501 enum kfd_preempt_type reset_type,
502 unsigned int utimeout, uint32_t pipe_id,
503 uint32_t queue_id, uint32_t inst)
504{
505 enum hqd_dequeue_request_type type;
506 unsigned long end_jiffies;
507 uint32_t temp;
508 struct v10_compute_mqd *m = get_mqd(mqd);
509
510 acquire_queue(adev, pipe_id, queue_id);
511
512 if (m->cp_hqd_vmid == 0)
513 WREG32_FIELD15(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0);
514
515 switch (reset_type) {
516 case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
517 type = DRAIN_PIPE;
518 break;
519 case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
520 type = RESET_WAVES;
521 break;
522 case KFD_PREEMPT_TYPE_WAVEFRONT_SAVE:
523 type = SAVE_WAVES;
524 break;
525 default:
526 type = DRAIN_PIPE;
527 break;
528 }
529
530 WREG32_SOC15(GC, 0, mmCP_HQD_DEQUEUE_REQUEST, type);
531
532 end_jiffies = (utimeout * HZ / 1000) + jiffies;
533 while (true) {
534 temp = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE);
535 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
536 break;
537 if (time_after(jiffies, end_jiffies)) {
538 pr_err("cp queue pipe %d queue %d preemption failed\n",
539 pipe_id, queue_id);
540 release_queue(adev);
541 return -ETIME;
542 }
543 usleep_range(min: 500, max: 1000);
544 }
545
546 release_queue(adev);
547 return 0;
548}
549
550static int hqd_sdma_destroy_v10_3(struct amdgpu_device *adev, void *mqd,
551 unsigned int utimeout)
552{
553 struct v10_sdma_mqd *m;
554 uint32_t sdma_rlc_reg_offset;
555 uint32_t temp;
556 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
557
558 m = get_sdma_mqd(mqd);
559 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, engine_id: m->sdma_engine_id,
560 queue_id: m->sdma_queue_id);
561
562 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
563 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
564 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp);
565
566 while (true) {
567 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
568 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
569 break;
570 if (time_after(jiffies, end_jiffies)) {
571 pr_err("SDMA RLC not idle in %s\n", __func__);
572 return -ETIME;
573 }
574 usleep_range(min: 500, max: 1000);
575 }
576
577 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0);
578 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
579 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) |
580 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
581
582 m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR);
583 m->sdmax_rlcx_rb_rptr_hi =
584 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI);
585
586 return 0;
587}
588
589static int wave_control_execute_v10_3(struct amdgpu_device *adev,
590 uint32_t gfx_index_val,
591 uint32_t sq_cmd, uint32_t inst)
592{
593 uint32_t data = 0;
594
595 mutex_lock(&adev->grbm_idx_mutex);
596
597 WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, gfx_index_val);
598 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_CMD), sq_cmd);
599
600 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
601 INSTANCE_BROADCAST_WRITES, 1);
602 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
603 SA_BROADCAST_WRITES, 1);
604 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
605 SE_BROADCAST_WRITES, 1);
606
607 WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, data);
608 mutex_unlock(lock: &adev->grbm_idx_mutex);
609
610 return 0;
611}
612
613static bool get_atc_vmid_pasid_mapping_info_v10_3(struct amdgpu_device *adev,
614 uint8_t vmid, uint16_t *p_pasid)
615{
616 uint32_t value;
617
618 value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
619 + vmid);
620 *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK;
621
622 return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK);
623}
624
625static void set_vm_context_page_table_base_v10_3(struct amdgpu_device *adev,
626 uint32_t vmid, uint64_t page_table_base)
627{
628 /* SDMA is on gfxhub as well for Navi1* series */
629 adev->gfxhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base);
630}
631
632static void program_trap_handler_settings_v10_3(struct amdgpu_device *adev,
633 uint32_t vmid, uint64_t tba_addr, uint64_t tma_addr,
634 uint32_t inst)
635{
636 lock_srbm(adev, mec: 0, pipe: 0, queue: 0, vmid);
637
638 /*
639 * Program TBA registers
640 */
641 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TBA_LO),
642 lower_32_bits(tba_addr >> 8));
643 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TBA_HI),
644 upper_32_bits(tba_addr >> 8) |
645 (1 << SQ_SHADER_TBA_HI__TRAP_EN__SHIFT));
646
647 /*
648 * Program TMA registers
649 */
650 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TMA_LO),
651 lower_32_bits(tma_addr >> 8));
652 WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TMA_HI),
653 upper_32_bits(tma_addr >> 8));
654
655 unlock_srbm(adev);
656}
657
658const struct kfd2kgd_calls gfx_v10_3_kfd2kgd = {
659 .program_sh_mem_settings = program_sh_mem_settings_v10_3,
660 .set_pasid_vmid_mapping = set_pasid_vmid_mapping_v10_3,
661 .init_interrupts = init_interrupts_v10_3,
662 .hqd_load = hqd_load_v10_3,
663 .hiq_mqd_load = hiq_mqd_load_v10_3,
664 .hqd_sdma_load = hqd_sdma_load_v10_3,
665 .hqd_dump = hqd_dump_v10_3,
666 .hqd_sdma_dump = hqd_sdma_dump_v10_3,
667 .hqd_is_occupied = hqd_is_occupied_v10_3,
668 .hqd_sdma_is_occupied = hqd_sdma_is_occupied_v10_3,
669 .hqd_destroy = hqd_destroy_v10_3,
670 .hqd_sdma_destroy = hqd_sdma_destroy_v10_3,
671 .wave_control_execute = wave_control_execute_v10_3,
672 .get_atc_vmid_pasid_mapping_info = get_atc_vmid_pasid_mapping_info_v10_3,
673 .set_vm_context_page_table_base = set_vm_context_page_table_base_v10_3,
674 .program_trap_handler_settings = program_trap_handler_settings_v10_3,
675 .get_iq_wait_times = kgd_gfx_v10_get_iq_wait_times,
676 .build_dequeue_wait_counts_packet_info = kgd_gfx_v10_build_dequeue_wait_counts_packet_info,
677 .enable_debug_trap = kgd_gfx_v10_enable_debug_trap,
678 .disable_debug_trap = kgd_gfx_v10_disable_debug_trap,
679 .validate_trap_override_request = kgd_gfx_v10_validate_trap_override_request,
680 .set_wave_launch_trap_override = kgd_gfx_v10_set_wave_launch_trap_override,
681 .set_wave_launch_mode = kgd_gfx_v10_set_wave_launch_mode,
682 .set_address_watch = kgd_gfx_v10_set_address_watch,
683 .clear_address_watch = kgd_gfx_v10_clear_address_watch,
684 .hqd_get_pq_addr = kgd_gfx_v10_hqd_get_pq_addr,
685 .hqd_reset = kgd_gfx_v10_hqd_reset,
686 .hqd_sdma_get_doorbell = kgd_gfx_v10_hqd_sdma_get_doorbell
687};
688

source code of linux/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10_3.c