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
23#include <linux/module.h>
24#include <linux/fdtable.h>
25#include <linux/uaccess.h>
26#include <linux/firmware.h>
27#include <linux/mmu_context.h>
28#include <drm/drmP.h>
29#include "amdgpu.h"
30#include "amdgpu_amdkfd.h"
31#include "amdgpu_ucode.h"
32#include "gfx_v8_0.h"
33#include "gca/gfx_8_0_sh_mask.h"
34#include "gca/gfx_8_0_d.h"
35#include "gca/gfx_8_0_enum.h"
36#include "oss/oss_3_0_sh_mask.h"
37#include "oss/oss_3_0_d.h"
38#include "gmc/gmc_8_1_sh_mask.h"
39#include "gmc/gmc_8_1_d.h"
40#include "vi_structs.h"
41#include "vid.h"
42
43enum hqd_dequeue_request_type {
44 NO_ACTION = 0,
45 DRAIN_PIPE,
46 RESET_WAVES
47};
48
49/*
50 * Register access functions
51 */
52
53static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
54 uint32_t sh_mem_config,
55 uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit,
56 uint32_t sh_mem_bases);
57static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
58 unsigned int vmid);
59static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
60static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
61 uint32_t queue_id, uint32_t __user *wptr,
62 uint32_t wptr_shift, uint32_t wptr_mask,
63 struct mm_struct *mm);
64static int kgd_hqd_dump(struct kgd_dev *kgd,
65 uint32_t pipe_id, uint32_t queue_id,
66 uint32_t (**dump)[2], uint32_t *n_regs);
67static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
68 uint32_t __user *wptr, struct mm_struct *mm);
69static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
70 uint32_t engine_id, uint32_t queue_id,
71 uint32_t (**dump)[2], uint32_t *n_regs);
72static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
73 uint32_t pipe_id, uint32_t queue_id);
74static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
75static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
76 enum kfd_preempt_type reset_type,
77 unsigned int utimeout, uint32_t pipe_id,
78 uint32_t queue_id);
79static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
80 unsigned int utimeout);
81static int kgd_address_watch_disable(struct kgd_dev *kgd);
82static int kgd_address_watch_execute(struct kgd_dev *kgd,
83 unsigned int watch_point_id,
84 uint32_t cntl_val,
85 uint32_t addr_hi,
86 uint32_t addr_lo);
87static int kgd_wave_control_execute(struct kgd_dev *kgd,
88 uint32_t gfx_index_val,
89 uint32_t sq_cmd);
90static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
91 unsigned int watch_point_id,
92 unsigned int reg_offset);
93
94static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
95 uint8_t vmid);
96static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
97 uint8_t vmid);
98static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
99static void set_scratch_backing_va(struct kgd_dev *kgd,
100 uint64_t va, uint32_t vmid);
101static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
102 uint64_t page_table_base);
103static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid);
104static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid);
105
106/* Because of REG_GET_FIELD() being used, we put this function in the
107 * asic specific file.
108 */
109static int get_tile_config(struct kgd_dev *kgd,
110 struct tile_config *config)
111{
112 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
113
114 config->gb_addr_config = adev->gfx.config.gb_addr_config;
115 config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
116 MC_ARB_RAMCFG, NOOFBANK);
117 config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
118 MC_ARB_RAMCFG, NOOFRANKS);
119
120 config->tile_config_ptr = adev->gfx.config.tile_mode_array;
121 config->num_tile_configs =
122 ARRAY_SIZE(adev->gfx.config.tile_mode_array);
123 config->macro_tile_config_ptr =
124 adev->gfx.config.macrotile_mode_array;
125 config->num_macro_tile_configs =
126 ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
127
128 return 0;
129}
130
131static const struct kfd2kgd_calls kfd2kgd = {
132 .program_sh_mem_settings = kgd_program_sh_mem_settings,
133 .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
134 .init_interrupts = kgd_init_interrupts,
135 .hqd_load = kgd_hqd_load,
136 .hqd_sdma_load = kgd_hqd_sdma_load,
137 .hqd_dump = kgd_hqd_dump,
138 .hqd_sdma_dump = kgd_hqd_sdma_dump,
139 .hqd_is_occupied = kgd_hqd_is_occupied,
140 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
141 .hqd_destroy = kgd_hqd_destroy,
142 .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
143 .address_watch_disable = kgd_address_watch_disable,
144 .address_watch_execute = kgd_address_watch_execute,
145 .wave_control_execute = kgd_wave_control_execute,
146 .address_watch_get_offset = kgd_address_watch_get_offset,
147 .get_atc_vmid_pasid_mapping_pasid =
148 get_atc_vmid_pasid_mapping_pasid,
149 .get_atc_vmid_pasid_mapping_valid =
150 get_atc_vmid_pasid_mapping_valid,
151 .get_fw_version = get_fw_version,
152 .set_scratch_backing_va = set_scratch_backing_va,
153 .get_tile_config = get_tile_config,
154 .set_vm_context_page_table_base = set_vm_context_page_table_base,
155 .invalidate_tlbs = invalidate_tlbs,
156 .invalidate_tlbs_vmid = invalidate_tlbs_vmid,
157};
158
159struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
160{
161 return (struct kfd2kgd_calls *)&kfd2kgd;
162}
163
164static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
165{
166 return (struct amdgpu_device *)kgd;
167}
168
169static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
170 uint32_t queue, uint32_t vmid)
171{
172 struct amdgpu_device *adev = get_amdgpu_device(kgd);
173 uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
174
175 mutex_lock(&adev->srbm_mutex);
176 WREG32(mmSRBM_GFX_CNTL, value);
177}
178
179static void unlock_srbm(struct kgd_dev *kgd)
180{
181 struct amdgpu_device *adev = get_amdgpu_device(kgd);
182
183 WREG32(mmSRBM_GFX_CNTL, 0);
184 mutex_unlock(&adev->srbm_mutex);
185}
186
187static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
188 uint32_t queue_id)
189{
190 struct amdgpu_device *adev = get_amdgpu_device(kgd);
191
192 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
193 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
194
195 lock_srbm(kgd, mec, pipe, queue_id, 0);
196}
197
198static void release_queue(struct kgd_dev *kgd)
199{
200 unlock_srbm(kgd);
201}
202
203static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
204 uint32_t sh_mem_config,
205 uint32_t sh_mem_ape1_base,
206 uint32_t sh_mem_ape1_limit,
207 uint32_t sh_mem_bases)
208{
209 struct amdgpu_device *adev = get_amdgpu_device(kgd);
210
211 lock_srbm(kgd, 0, 0, 0, vmid);
212
213 WREG32(mmSH_MEM_CONFIG, sh_mem_config);
214 WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
215 WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
216 WREG32(mmSH_MEM_BASES, sh_mem_bases);
217
218 unlock_srbm(kgd);
219}
220
221static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
222 unsigned int vmid)
223{
224 struct amdgpu_device *adev = get_amdgpu_device(kgd);
225
226 /*
227 * We have to assume that there is no outstanding mapping.
228 * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
229 * a mapping is in progress or because a mapping finished
230 * and the SW cleared it.
231 * So the protocol is to always wait & clear.
232 */
233 uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
234 ATC_VMID0_PASID_MAPPING__VALID_MASK;
235
236 WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
237
238 while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
239 cpu_relax();
240 WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
241
242 /* Mapping vmid to pasid also for IH block */
243 WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
244
245 return 0;
246}
247
248static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
249{
250 struct amdgpu_device *adev = get_amdgpu_device(kgd);
251 uint32_t mec;
252 uint32_t pipe;
253
254 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
255 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
256
257 lock_srbm(kgd, mec, pipe, 0, 0);
258
259 WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
260 CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
261
262 unlock_srbm(kgd);
263
264 return 0;
265}
266
267static inline uint32_t get_sdma_base_addr(struct vi_sdma_mqd *m)
268{
269 uint32_t retval;
270
271 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
272 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
273 pr_debug("kfd: sdma base address: 0x%x\n", retval);
274
275 return retval;
276}
277
278static inline struct vi_mqd *get_mqd(void *mqd)
279{
280 return (struct vi_mqd *)mqd;
281}
282
283static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
284{
285 return (struct vi_sdma_mqd *)mqd;
286}
287
288static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
289 uint32_t queue_id, uint32_t __user *wptr,
290 uint32_t wptr_shift, uint32_t wptr_mask,
291 struct mm_struct *mm)
292{
293 struct amdgpu_device *adev = get_amdgpu_device(kgd);
294 struct vi_mqd *m;
295 uint32_t *mqd_hqd;
296 uint32_t reg, wptr_val, data;
297 bool valid_wptr = false;
298
299 m = get_mqd(mqd);
300
301 acquire_queue(kgd, pipe_id, queue_id);
302
303 /* HIQ is set during driver init period with vmid set to 0*/
304 if (m->cp_hqd_vmid == 0) {
305 uint32_t value, mec, pipe;
306
307 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
308 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
309
310 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
311 mec, pipe, queue_id);
312 value = RREG32(mmRLC_CP_SCHEDULERS);
313 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
314 ((mec << 5) | (pipe << 3) | queue_id | 0x80));
315 WREG32(mmRLC_CP_SCHEDULERS, value);
316 }
317
318 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
319 mqd_hqd = &m->cp_mqd_base_addr_lo;
320
321 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_CONTROL; reg++)
322 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
323
324 /* Tonga errata: EOP RPTR/WPTR should be left unmodified.
325 * This is safe since EOP RPTR==WPTR for any inactive HQD
326 * on ASICs that do not support context-save.
327 * EOP writes/reads can start anywhere in the ring.
328 */
329 if (get_amdgpu_device(kgd)->asic_type != CHIP_TONGA) {
330 WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
331 WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
332 WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
333 }
334
335 for (reg = mmCP_HQD_EOP_EVENTS; reg <= mmCP_HQD_ERROR; reg++)
336 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
337
338 /* Copy userspace write pointer value to register.
339 * Activate doorbell logic to monitor subsequent changes.
340 */
341 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
342 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
343 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data);
344
345 /* read_user_ptr may take the mm->mmap_sem.
346 * release srbm_mutex to avoid circular dependency between
347 * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex.
348 */
349 release_queue(kgd);
350 valid_wptr = read_user_wptr(mm, wptr, wptr_val);
351 acquire_queue(kgd, pipe_id, queue_id);
352 if (valid_wptr)
353 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask);
354
355 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
356 WREG32(mmCP_HQD_ACTIVE, data);
357
358 release_queue(kgd);
359
360 return 0;
361}
362
363static int kgd_hqd_dump(struct kgd_dev *kgd,
364 uint32_t pipe_id, uint32_t queue_id,
365 uint32_t (**dump)[2], uint32_t *n_regs)
366{
367 struct amdgpu_device *adev = get_amdgpu_device(kgd);
368 uint32_t i = 0, reg;
369#define HQD_N_REGS (54+4)
370#define DUMP_REG(addr) do { \
371 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
372 break; \
373 (*dump)[i][0] = (addr) << 2; \
374 (*dump)[i++][1] = RREG32(addr); \
375 } while (0)
376
377 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
378 if (*dump == NULL)
379 return -ENOMEM;
380
381 acquire_queue(kgd, pipe_id, queue_id);
382
383 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0);
384 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1);
385 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2);
386 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3);
387
388 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_DONES; reg++)
389 DUMP_REG(reg);
390
391 release_queue(kgd);
392
393 WARN_ON_ONCE(i != HQD_N_REGS);
394 *n_regs = i;
395
396 return 0;
397}
398
399static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
400 uint32_t __user *wptr, struct mm_struct *mm)
401{
402 struct amdgpu_device *adev = get_amdgpu_device(kgd);
403 struct vi_sdma_mqd *m;
404 unsigned long end_jiffies;
405 uint32_t sdma_base_addr;
406 uint32_t data;
407
408 m = get_sdma_mqd(mqd);
409 sdma_base_addr = get_sdma_base_addr(m);
410 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
411 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
412
413 end_jiffies = msecs_to_jiffies(2000) + jiffies;
414 while (true) {
415 data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
416 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
417 break;
418 if (time_after(jiffies, end_jiffies))
419 return -ETIME;
420 usleep_range(500, 1000);
421 }
422 if (m->sdma_engine_id) {
423 data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL);
424 data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL,
425 RESUME_CTX, 0);
426 WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data);
427 } else {
428 data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL);
429 data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL,
430 RESUME_CTX, 0);
431 WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data);
432 }
433
434 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
435 ENABLE, 1);
436 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data);
437 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdmax_rlcx_rb_rptr);
438
439 if (read_user_wptr(mm, wptr, data))
440 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, data);
441 else
442 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
443 m->sdmax_rlcx_rb_rptr);
444
445 WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR,
446 m->sdmax_rlcx_virtual_addr);
447 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
448 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
449 m->sdmax_rlcx_rb_base_hi);
450 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
451 m->sdmax_rlcx_rb_rptr_addr_lo);
452 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
453 m->sdmax_rlcx_rb_rptr_addr_hi);
454
455 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
456 RB_ENABLE, 1);
457 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data);
458
459 return 0;
460}
461
462static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
463 uint32_t engine_id, uint32_t queue_id,
464 uint32_t (**dump)[2], uint32_t *n_regs)
465{
466 struct amdgpu_device *adev = get_amdgpu_device(kgd);
467 uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET +
468 queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
469 uint32_t i = 0, reg;
470#undef HQD_N_REGS
471#define HQD_N_REGS (19+4+2+3+7)
472
473 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
474 if (*dump == NULL)
475 return -ENOMEM;
476
477 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
478 DUMP_REG(sdma_offset + reg);
479 for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK;
480 reg++)
481 DUMP_REG(sdma_offset + reg);
482 for (reg = mmSDMA0_RLC0_CSA_ADDR_LO; reg <= mmSDMA0_RLC0_CSA_ADDR_HI;
483 reg++)
484 DUMP_REG(sdma_offset + reg);
485 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; reg <= mmSDMA0_RLC0_DUMMY_REG;
486 reg++)
487 DUMP_REG(sdma_offset + reg);
488 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; reg <= mmSDMA0_RLC0_MIDCMD_CNTL;
489 reg++)
490 DUMP_REG(sdma_offset + reg);
491
492 WARN_ON_ONCE(i != HQD_N_REGS);
493 *n_regs = i;
494
495 return 0;
496}
497
498static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
499 uint32_t pipe_id, uint32_t queue_id)
500{
501 struct amdgpu_device *adev = get_amdgpu_device(kgd);
502 uint32_t act;
503 bool retval = false;
504 uint32_t low, high;
505
506 acquire_queue(kgd, pipe_id, queue_id);
507 act = RREG32(mmCP_HQD_ACTIVE);
508 if (act) {
509 low = lower_32_bits(queue_address >> 8);
510 high = upper_32_bits(queue_address >> 8);
511
512 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
513 high == RREG32(mmCP_HQD_PQ_BASE_HI))
514 retval = true;
515 }
516 release_queue(kgd);
517 return retval;
518}
519
520static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
521{
522 struct amdgpu_device *adev = get_amdgpu_device(kgd);
523 struct vi_sdma_mqd *m;
524 uint32_t sdma_base_addr;
525 uint32_t sdma_rlc_rb_cntl;
526
527 m = get_sdma_mqd(mqd);
528 sdma_base_addr = get_sdma_base_addr(m);
529
530 sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
531
532 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
533 return true;
534
535 return false;
536}
537
538static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
539 enum kfd_preempt_type reset_type,
540 unsigned int utimeout, uint32_t pipe_id,
541 uint32_t queue_id)
542{
543 struct amdgpu_device *adev = get_amdgpu_device(kgd);
544 uint32_t temp;
545 enum hqd_dequeue_request_type type;
546 unsigned long flags, end_jiffies;
547 int retry;
548 struct vi_mqd *m = get_mqd(mqd);
549
550 if (adev->in_gpu_reset)
551 return -EIO;
552
553 acquire_queue(kgd, pipe_id, queue_id);
554
555 if (m->cp_hqd_vmid == 0)
556 WREG32_FIELD(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 /* Workaround: If IQ timer is active and the wait time is close to or
571 * equal to 0, dequeueing is not safe. Wait until either the wait time
572 * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
573 * cleared before continuing. Also, ensure wait times are set to at
574 * least 0x3.
575 */
576 local_irq_save(flags);
577 preempt_disable();
578 retry = 5000; /* wait for 500 usecs at maximum */
579 while (true) {
580 temp = RREG32(mmCP_HQD_IQ_TIMER);
581 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
582 pr_debug("HW is processing IQ\n");
583 goto loop;
584 }
585 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
586 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
587 == 3) /* SEM-rearm is safe */
588 break;
589 /* Wait time 3 is safe for CP, but our MMIO read/write
590 * time is close to 1 microsecond, so check for 10 to
591 * leave more buffer room
592 */
593 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
594 >= 10)
595 break;
596 pr_debug("IQ timer is active\n");
597 } else
598 break;
599loop:
600 if (!retry) {
601 pr_err("CP HQD IQ timer status time out\n");
602 break;
603 }
604 ndelay(100);
605 --retry;
606 }
607 retry = 1000;
608 while (true) {
609 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
610 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
611 break;
612 pr_debug("Dequeue request is pending\n");
613
614 if (!retry) {
615 pr_err("CP HQD dequeue request time out\n");
616 break;
617 }
618 ndelay(100);
619 --retry;
620 }
621 local_irq_restore(flags);
622 preempt_enable();
623
624 WREG32(mmCP_HQD_DEQUEUE_REQUEST, type);
625
626 end_jiffies = (utimeout * HZ / 1000) + jiffies;
627 while (true) {
628 temp = RREG32(mmCP_HQD_ACTIVE);
629 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
630 break;
631 if (time_after(jiffies, end_jiffies)) {
632 pr_err("cp queue preemption time out.\n");
633 release_queue(kgd);
634 return -ETIME;
635 }
636 usleep_range(500, 1000);
637 }
638
639 release_queue(kgd);
640 return 0;
641}
642
643static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
644 unsigned int utimeout)
645{
646 struct amdgpu_device *adev = get_amdgpu_device(kgd);
647 struct vi_sdma_mqd *m;
648 uint32_t sdma_base_addr;
649 uint32_t temp;
650 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
651
652 m = get_sdma_mqd(mqd);
653 sdma_base_addr = get_sdma_base_addr(m);
654
655 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
656 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
657 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
658
659 while (true) {
660 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
661 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
662 break;
663 if (time_after(jiffies, end_jiffies))
664 return -ETIME;
665 usleep_range(500, 1000);
666 }
667
668 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
669 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
670 RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) |
671 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
672
673 m->sdmax_rlcx_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR);
674
675 return 0;
676}
677
678static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
679 uint8_t vmid)
680{
681 uint32_t reg;
682 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
683
684 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
685 return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
686}
687
688static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
689 uint8_t vmid)
690{
691 uint32_t reg;
692 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
693
694 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
695 return reg & ATC_VMID0_PASID_MAPPING__PASID_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(mmGRBM_GFX_INDEX, gfx_index_val);
722 WREG32(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 SH_BROADCAST_WRITES, 1);
728 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
729 SE_BROADCAST_WRITES, 1);
730
731 WREG32(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_scratch_backing_va(struct kgd_dev *kgd,
745 uint64_t va, uint32_t vmid)
746{
747 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
748
749 lock_srbm(kgd, 0, 0, 0, vmid);
750 WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va);
751 unlock_srbm(kgd);
752}
753
754static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
755{
756 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
757 const union amdgpu_firmware_header *hdr;
758
759 switch (type) {
760 case KGD_ENGINE_PFP:
761 hdr = (const union amdgpu_firmware_header *)
762 adev->gfx.pfp_fw->data;
763 break;
764
765 case KGD_ENGINE_ME:
766 hdr = (const union amdgpu_firmware_header *)
767 adev->gfx.me_fw->data;
768 break;
769
770 case KGD_ENGINE_CE:
771 hdr = (const union amdgpu_firmware_header *)
772 adev->gfx.ce_fw->data;
773 break;
774
775 case KGD_ENGINE_MEC1:
776 hdr = (const union amdgpu_firmware_header *)
777 adev->gfx.mec_fw->data;
778 break;
779
780 case KGD_ENGINE_MEC2:
781 hdr = (const union amdgpu_firmware_header *)
782 adev->gfx.mec2_fw->data;
783 break;
784
785 case KGD_ENGINE_RLC:
786 hdr = (const union amdgpu_firmware_header *)
787 adev->gfx.rlc_fw->data;
788 break;
789
790 case KGD_ENGINE_SDMA1:
791 hdr = (const union amdgpu_firmware_header *)
792 adev->sdma.instance[0].fw->data;
793 break;
794
795 case KGD_ENGINE_SDMA2:
796 hdr = (const union amdgpu_firmware_header *)
797 adev->sdma.instance[1].fw->data;
798 break;
799
800 default:
801 return 0;
802 }
803
804 if (hdr == NULL)
805 return 0;
806
807 /* Only 12 bit in use*/
808 return hdr->common.ucode_version;
809}
810
811static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
812 uint64_t page_table_base)
813{
814 struct amdgpu_device *adev = get_amdgpu_device(kgd);
815
816 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
817 pr_err("trying to set page table base for wrong VMID\n");
818 return;
819 }
820 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8,
821 lower_32_bits(page_table_base));
822}
823
824static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid)
825{
826 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
827 int vmid;
828 unsigned int tmp;
829
830 if (adev->in_gpu_reset)
831 return -EIO;
832
833 for (vmid = 0; vmid < 16; vmid++) {
834 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid))
835 continue;
836
837 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
838 if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
839 (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) {
840 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
841 RREG32(mmVM_INVALIDATE_RESPONSE);
842 break;
843 }
844 }
845
846 return 0;
847}
848
849static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid)
850{
851 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
852
853 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
854 pr_err("non kfd vmid %d\n", vmid);
855 return -EINVAL;
856 }
857
858 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
859 RREG32(mmVM_INVALIDATE_RESPONSE);
860 return 0;
861}
862