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 <drm/drmP.h>
28 #include "amdgpu.h"
29 #include "amdgpu_amdkfd.h"
30 #include "amdgpu_ucode.h"
31 #include "gfx_v8_0.h"
32 #include "gca/gfx_8_0_sh_mask.h"
33 #include "gca/gfx_8_0_d.h"
34 #include "gca/gfx_8_0_enum.h"
35 #include "oss/oss_3_0_sh_mask.h"
36 #include "oss/oss_3_0_d.h"
37 #include "gmc/gmc_8_1_sh_mask.h"
38 #include "gmc/gmc_8_1_d.h"
39 #include "vi_structs.h"
40 #include "vid.h"
41
42 enum hqd_dequeue_request_type {
43 NO_ACTION = 0,
44 DRAIN_PIPE,
45 RESET_WAVES
46 };
47
48 struct vi_sdma_mqd;
49
50 /*
51 * Register access functions
52 */
53
54 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
55 uint32_t sh_mem_config,
56 uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit,
57 uint32_t sh_mem_bases);
58 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
59 unsigned int vmid);
60 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
61 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
62 uint32_t queue_id, uint32_t __user *wptr,
63 uint32_t wptr_shift, uint32_t wptr_mask,
64 struct mm_struct *mm);
65 static int kgd_hqd_dump(struct kgd_dev *kgd,
66 uint32_t pipe_id, uint32_t queue_id,
67 uint32_t (**dump)[2], uint32_t *n_regs);
68 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
69 uint32_t __user *wptr, struct mm_struct *mm);
70 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
71 uint32_t engine_id, uint32_t queue_id,
72 uint32_t (**dump)[2], uint32_t *n_regs);
73 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
74 uint32_t pipe_id, uint32_t queue_id);
75 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
76 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
77 enum kfd_preempt_type reset_type,
78 unsigned int utimeout, uint32_t pipe_id,
79 uint32_t queue_id);
80 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
81 unsigned int utimeout);
82 static int kgd_address_watch_disable(struct kgd_dev *kgd);
83 static int kgd_address_watch_execute(struct kgd_dev *kgd,
84 unsigned int watch_point_id,
85 uint32_t cntl_val,
86 uint32_t addr_hi,
87 uint32_t addr_lo);
88 static int kgd_wave_control_execute(struct kgd_dev *kgd,
89 uint32_t gfx_index_val,
90 uint32_t sq_cmd);
91 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
92 unsigned int watch_point_id,
93 unsigned int reg_offset);
94
95 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
96 uint8_t vmid);
97 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
98 uint8_t vmid);
99 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
100 static void set_scratch_backing_va(struct kgd_dev *kgd,
101 uint64_t va, uint32_t vmid);
102 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
103 uint32_t page_table_base);
104 static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid);
105 static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid);
106
107 /* Because of REG_GET_FIELD() being used, we put this function in the
108 * asic specific file.
109 */
get_tile_config(struct kgd_dev * kgd,struct tile_config * config)110 static int get_tile_config(struct kgd_dev *kgd,
111 struct tile_config *config)
112 {
113 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
114
115 config->gb_addr_config = adev->gfx.config.gb_addr_config;
116 config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
117 MC_ARB_RAMCFG, NOOFBANK);
118 config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
119 MC_ARB_RAMCFG, NOOFRANKS);
120
121 config->tile_config_ptr = adev->gfx.config.tile_mode_array;
122 config->num_tile_configs =
123 ARRAY_SIZE(adev->gfx.config.tile_mode_array);
124 config->macro_tile_config_ptr =
125 adev->gfx.config.macrotile_mode_array;
126 config->num_macro_tile_configs =
127 ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
128
129 return 0;
130 }
131
132 static const struct kfd2kgd_calls kfd2kgd = {
133 .init_gtt_mem_allocation = alloc_gtt_mem,
134 .free_gtt_mem = free_gtt_mem,
135 .get_local_mem_info = get_local_mem_info,
136 .get_gpu_clock_counter = get_gpu_clock_counter,
137 .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
138 .alloc_pasid = amdgpu_pasid_alloc,
139 .free_pasid = amdgpu_pasid_free,
140 .program_sh_mem_settings = kgd_program_sh_mem_settings,
141 .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
142 .init_interrupts = kgd_init_interrupts,
143 .hqd_load = kgd_hqd_load,
144 .hqd_sdma_load = kgd_hqd_sdma_load,
145 .hqd_dump = kgd_hqd_dump,
146 .hqd_sdma_dump = kgd_hqd_sdma_dump,
147 .hqd_is_occupied = kgd_hqd_is_occupied,
148 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
149 .hqd_destroy = kgd_hqd_destroy,
150 .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
151 .address_watch_disable = kgd_address_watch_disable,
152 .address_watch_execute = kgd_address_watch_execute,
153 .wave_control_execute = kgd_wave_control_execute,
154 .address_watch_get_offset = kgd_address_watch_get_offset,
155 .get_atc_vmid_pasid_mapping_pasid =
156 get_atc_vmid_pasid_mapping_pasid,
157 .get_atc_vmid_pasid_mapping_valid =
158 get_atc_vmid_pasid_mapping_valid,
159 .get_fw_version = get_fw_version,
160 .set_scratch_backing_va = set_scratch_backing_va,
161 .get_tile_config = get_tile_config,
162 .get_cu_info = get_cu_info,
163 .get_vram_usage = amdgpu_amdkfd_get_vram_usage,
164 .create_process_vm = amdgpu_amdkfd_gpuvm_create_process_vm,
165 .acquire_process_vm = amdgpu_amdkfd_gpuvm_acquire_process_vm,
166 .destroy_process_vm = amdgpu_amdkfd_gpuvm_destroy_process_vm,
167 .get_process_page_dir = amdgpu_amdkfd_gpuvm_get_process_page_dir,
168 .set_vm_context_page_table_base = set_vm_context_page_table_base,
169 .alloc_memory_of_gpu = amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu,
170 .free_memory_of_gpu = amdgpu_amdkfd_gpuvm_free_memory_of_gpu,
171 .map_memory_to_gpu = amdgpu_amdkfd_gpuvm_map_memory_to_gpu,
172 .unmap_memory_to_gpu = amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu,
173 .sync_memory = amdgpu_amdkfd_gpuvm_sync_memory,
174 .map_gtt_bo_to_kernel = amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel,
175 .restore_process_bos = amdgpu_amdkfd_gpuvm_restore_process_bos,
176 .invalidate_tlbs = invalidate_tlbs,
177 .invalidate_tlbs_vmid = invalidate_tlbs_vmid,
178 .submit_ib = amdgpu_amdkfd_submit_ib,
179 .get_vm_fault_info = amdgpu_amdkfd_gpuvm_get_vm_fault_info,
180 .gpu_recover = amdgpu_amdkfd_gpu_reset,
181 .set_compute_idle = amdgpu_amdkfd_set_compute_idle
182 };
183
amdgpu_amdkfd_gfx_8_0_get_functions(void)184 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
185 {
186 return (struct kfd2kgd_calls *)&kfd2kgd;
187 }
188
get_amdgpu_device(struct kgd_dev * kgd)189 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
190 {
191 return (struct amdgpu_device *)kgd;
192 }
193
lock_srbm(struct kgd_dev * kgd,uint32_t mec,uint32_t pipe,uint32_t queue,uint32_t vmid)194 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
195 uint32_t queue, uint32_t vmid)
196 {
197 struct amdgpu_device *adev = get_amdgpu_device(kgd);
198 uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
199
200 mutex_lock(&adev->srbm_mutex);
201 WREG32(mmSRBM_GFX_CNTL, value);
202 }
203
unlock_srbm(struct kgd_dev * kgd)204 static void unlock_srbm(struct kgd_dev *kgd)
205 {
206 struct amdgpu_device *adev = get_amdgpu_device(kgd);
207
208 WREG32(mmSRBM_GFX_CNTL, 0);
209 mutex_unlock(&adev->srbm_mutex);
210 }
211
acquire_queue(struct kgd_dev * kgd,uint32_t pipe_id,uint32_t queue_id)212 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
213 uint32_t queue_id)
214 {
215 struct amdgpu_device *adev = get_amdgpu_device(kgd);
216
217 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
218 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
219
220 lock_srbm(kgd, mec, pipe, queue_id, 0);
221 }
222
release_queue(struct kgd_dev * kgd)223 static void release_queue(struct kgd_dev *kgd)
224 {
225 unlock_srbm(kgd);
226 }
227
kgd_program_sh_mem_settings(struct kgd_dev * kgd,uint32_t vmid,uint32_t sh_mem_config,uint32_t sh_mem_ape1_base,uint32_t sh_mem_ape1_limit,uint32_t sh_mem_bases)228 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
229 uint32_t sh_mem_config,
230 uint32_t sh_mem_ape1_base,
231 uint32_t sh_mem_ape1_limit,
232 uint32_t sh_mem_bases)
233 {
234 struct amdgpu_device *adev = get_amdgpu_device(kgd);
235
236 lock_srbm(kgd, 0, 0, 0, vmid);
237
238 WREG32(mmSH_MEM_CONFIG, sh_mem_config);
239 WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
240 WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
241 WREG32(mmSH_MEM_BASES, sh_mem_bases);
242
243 unlock_srbm(kgd);
244 }
245
kgd_set_pasid_vmid_mapping(struct kgd_dev * kgd,unsigned int pasid,unsigned int vmid)246 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
247 unsigned int vmid)
248 {
249 struct amdgpu_device *adev = get_amdgpu_device(kgd);
250
251 /*
252 * We have to assume that there is no outstanding mapping.
253 * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
254 * a mapping is in progress or because a mapping finished
255 * and the SW cleared it.
256 * So the protocol is to always wait & clear.
257 */
258 uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
259 ATC_VMID0_PASID_MAPPING__VALID_MASK;
260
261 WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
262
263 while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
264 cpu_relax();
265 WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
266
267 /* Mapping vmid to pasid also for IH block */
268 WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
269
270 return 0;
271 }
272
kgd_init_interrupts(struct kgd_dev * kgd,uint32_t pipe_id)273 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
274 {
275 struct amdgpu_device *adev = get_amdgpu_device(kgd);
276 uint32_t mec;
277 uint32_t pipe;
278
279 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
280 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
281
282 lock_srbm(kgd, mec, pipe, 0, 0);
283
284 WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK);
285
286 unlock_srbm(kgd);
287
288 return 0;
289 }
290
get_sdma_base_addr(struct vi_sdma_mqd * m)291 static inline uint32_t get_sdma_base_addr(struct vi_sdma_mqd *m)
292 {
293 uint32_t retval;
294
295 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
296 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
297 pr_debug("kfd: sdma base address: 0x%x\n", retval);
298
299 return retval;
300 }
301
get_mqd(void * mqd)302 static inline struct vi_mqd *get_mqd(void *mqd)
303 {
304 return (struct vi_mqd *)mqd;
305 }
306
get_sdma_mqd(void * mqd)307 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
308 {
309 return (struct vi_sdma_mqd *)mqd;
310 }
311
kgd_hqd_load(struct kgd_dev * kgd,void * mqd,uint32_t pipe_id,uint32_t queue_id,uint32_t __user * wptr,uint32_t wptr_shift,uint32_t wptr_mask,struct mm_struct * mm)312 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
313 uint32_t queue_id, uint32_t __user *wptr,
314 uint32_t wptr_shift, uint32_t wptr_mask,
315 struct mm_struct *mm)
316 {
317 struct amdgpu_device *adev = get_amdgpu_device(kgd);
318 struct vi_mqd *m;
319 uint32_t *mqd_hqd;
320 uint32_t reg, wptr_val, data;
321 bool valid_wptr = false;
322
323 m = get_mqd(mqd);
324
325 acquire_queue(kgd, pipe_id, queue_id);
326
327 /* HIQ is set during driver init period with vmid set to 0*/
328 if (m->cp_hqd_vmid == 0) {
329 uint32_t value, mec, pipe;
330
331 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
332 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
333
334 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
335 mec, pipe, queue_id);
336 value = RREG32(mmRLC_CP_SCHEDULERS);
337 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
338 ((mec << 5) | (pipe << 3) | queue_id | 0x80));
339 WREG32(mmRLC_CP_SCHEDULERS, value);
340 }
341
342 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
343 mqd_hqd = &m->cp_mqd_base_addr_lo;
344
345 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_CONTROL; reg++)
346 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
347
348 /* Tonga errata: EOP RPTR/WPTR should be left unmodified.
349 * This is safe since EOP RPTR==WPTR for any inactive HQD
350 * on ASICs that do not support context-save.
351 * EOP writes/reads can start anywhere in the ring.
352 */
353 if (get_amdgpu_device(kgd)->asic_type != CHIP_TONGA) {
354 WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
355 WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
356 WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
357 }
358
359 for (reg = mmCP_HQD_EOP_EVENTS; reg <= mmCP_HQD_ERROR; reg++)
360 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
361
362 /* Copy userspace write pointer value to register.
363 * Activate doorbell logic to monitor subsequent changes.
364 */
365 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
366 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
367 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data);
368
369 /* read_user_ptr may take the mm->mmap_sem.
370 * release srbm_mutex to avoid circular dependency between
371 * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex.
372 */
373 release_queue(kgd);
374 valid_wptr = read_user_wptr(mm, wptr, wptr_val);
375 acquire_queue(kgd, pipe_id, queue_id);
376 if (valid_wptr)
377 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask);
378
379 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
380 WREG32(mmCP_HQD_ACTIVE, data);
381
382 release_queue(kgd);
383
384 return 0;
385 }
386
kgd_hqd_dump(struct kgd_dev * kgd,uint32_t pipe_id,uint32_t queue_id,uint32_t (** dump)[2],uint32_t * n_regs)387 static int kgd_hqd_dump(struct kgd_dev *kgd,
388 uint32_t pipe_id, uint32_t queue_id,
389 uint32_t (**dump)[2], uint32_t *n_regs)
390 {
391 struct amdgpu_device *adev = get_amdgpu_device(kgd);
392 uint32_t i = 0, reg;
393 #define HQD_N_REGS (54+4)
394 #define DUMP_REG(addr) do { \
395 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
396 break; \
397 (*dump)[i][0] = (addr) << 2; \
398 (*dump)[i++][1] = RREG32(addr); \
399 } while (0)
400
401 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
402 if (*dump == NULL)
403 return -ENOMEM;
404
405 acquire_queue(kgd, pipe_id, queue_id);
406
407 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0);
408 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1);
409 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2);
410 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3);
411
412 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_DONES; reg++)
413 DUMP_REG(reg);
414
415 release_queue(kgd);
416
417 WARN_ON_ONCE(i != HQD_N_REGS);
418 *n_regs = i;
419
420 return 0;
421 }
422
kgd_hqd_sdma_load(struct kgd_dev * kgd,void * mqd,uint32_t __user * wptr,struct mm_struct * mm)423 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
424 uint32_t __user *wptr, struct mm_struct *mm)
425 {
426 struct amdgpu_device *adev = get_amdgpu_device(kgd);
427 struct vi_sdma_mqd *m;
428 unsigned long end_jiffies;
429 uint32_t sdma_base_addr;
430 uint32_t data;
431
432 m = get_sdma_mqd(mqd);
433 sdma_base_addr = get_sdma_base_addr(m);
434 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
435 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
436
437 end_jiffies = msecs_to_jiffies(2000) + jiffies;
438 while (true) {
439 data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
440 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
441 break;
442 if (time_after(jiffies, end_jiffies))
443 return -ETIME;
444 usleep_range(500, 1000);
445 }
446 if (m->sdma_engine_id) {
447 data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL);
448 data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL,
449 RESUME_CTX, 0);
450 WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data);
451 } else {
452 data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL);
453 data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL,
454 RESUME_CTX, 0);
455 WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data);
456 }
457
458 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
459 ENABLE, 1);
460 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data);
461 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdmax_rlcx_rb_rptr);
462
463 if (read_user_wptr(mm, wptr, data))
464 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, data);
465 else
466 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
467 m->sdmax_rlcx_rb_rptr);
468
469 WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR,
470 m->sdmax_rlcx_virtual_addr);
471 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
472 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
473 m->sdmax_rlcx_rb_base_hi);
474 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
475 m->sdmax_rlcx_rb_rptr_addr_lo);
476 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
477 m->sdmax_rlcx_rb_rptr_addr_hi);
478
479 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
480 RB_ENABLE, 1);
481 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data);
482
483 return 0;
484 }
485
kgd_hqd_sdma_dump(struct kgd_dev * kgd,uint32_t engine_id,uint32_t queue_id,uint32_t (** dump)[2],uint32_t * n_regs)486 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
487 uint32_t engine_id, uint32_t queue_id,
488 uint32_t (**dump)[2], uint32_t *n_regs)
489 {
490 struct amdgpu_device *adev = get_amdgpu_device(kgd);
491 uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET +
492 queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
493 uint32_t i = 0, reg;
494 #undef HQD_N_REGS
495 #define HQD_N_REGS (19+4+2+3+7)
496
497 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
498 if (*dump == NULL)
499 return -ENOMEM;
500
501 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
502 DUMP_REG(sdma_offset + reg);
503 for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK;
504 reg++)
505 DUMP_REG(sdma_offset + reg);
506 for (reg = mmSDMA0_RLC0_CSA_ADDR_LO; reg <= mmSDMA0_RLC0_CSA_ADDR_HI;
507 reg++)
508 DUMP_REG(sdma_offset + reg);
509 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; reg <= mmSDMA0_RLC0_DUMMY_REG;
510 reg++)
511 DUMP_REG(sdma_offset + reg);
512 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; reg <= mmSDMA0_RLC0_MIDCMD_CNTL;
513 reg++)
514 DUMP_REG(sdma_offset + reg);
515
516 WARN_ON_ONCE(i != HQD_N_REGS);
517 *n_regs = i;
518
519 return 0;
520 }
521
kgd_hqd_is_occupied(struct kgd_dev * kgd,uint64_t queue_address,uint32_t pipe_id,uint32_t queue_id)522 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
523 uint32_t pipe_id, uint32_t queue_id)
524 {
525 struct amdgpu_device *adev = get_amdgpu_device(kgd);
526 uint32_t act;
527 bool retval = false;
528 uint32_t low, high;
529
530 acquire_queue(kgd, pipe_id, queue_id);
531 act = RREG32(mmCP_HQD_ACTIVE);
532 if (act) {
533 low = lower_32_bits(queue_address >> 8);
534 high = upper_32_bits(queue_address >> 8);
535
536 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
537 high == RREG32(mmCP_HQD_PQ_BASE_HI))
538 retval = true;
539 }
540 release_queue(kgd);
541 return retval;
542 }
543
kgd_hqd_sdma_is_occupied(struct kgd_dev * kgd,void * mqd)544 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
545 {
546 struct amdgpu_device *adev = get_amdgpu_device(kgd);
547 struct vi_sdma_mqd *m;
548 uint32_t sdma_base_addr;
549 uint32_t sdma_rlc_rb_cntl;
550
551 m = get_sdma_mqd(mqd);
552 sdma_base_addr = get_sdma_base_addr(m);
553
554 sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
555
556 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
557 return true;
558
559 return false;
560 }
561
kgd_hqd_destroy(struct kgd_dev * kgd,void * mqd,enum kfd_preempt_type reset_type,unsigned int utimeout,uint32_t pipe_id,uint32_t queue_id)562 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
563 enum kfd_preempt_type reset_type,
564 unsigned int utimeout, uint32_t pipe_id,
565 uint32_t queue_id)
566 {
567 struct amdgpu_device *adev = get_amdgpu_device(kgd);
568 uint32_t temp;
569 enum hqd_dequeue_request_type type;
570 unsigned long flags, end_jiffies;
571 int retry;
572 struct vi_mqd *m = get_mqd(mqd);
573
574 if (adev->in_gpu_reset)
575 return -EIO;
576
577 acquire_queue(kgd, pipe_id, queue_id);
578
579 if (m->cp_hqd_vmid == 0)
580 WREG32_FIELD(RLC_CP_SCHEDULERS, scheduler1, 0);
581
582 switch (reset_type) {
583 case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
584 type = DRAIN_PIPE;
585 break;
586 case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
587 type = RESET_WAVES;
588 break;
589 default:
590 type = DRAIN_PIPE;
591 break;
592 }
593
594 /* Workaround: If IQ timer is active and the wait time is close to or
595 * equal to 0, dequeueing is not safe. Wait until either the wait time
596 * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
597 * cleared before continuing. Also, ensure wait times are set to at
598 * least 0x3.
599 */
600 local_irq_save(flags);
601 preempt_disable();
602 retry = 5000; /* wait for 500 usecs at maximum */
603 while (true) {
604 temp = RREG32(mmCP_HQD_IQ_TIMER);
605 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
606 pr_debug("HW is processing IQ\n");
607 goto loop;
608 }
609 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
610 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
611 == 3) /* SEM-rearm is safe */
612 break;
613 /* Wait time 3 is safe for CP, but our MMIO read/write
614 * time is close to 1 microsecond, so check for 10 to
615 * leave more buffer room
616 */
617 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
618 >= 10)
619 break;
620 pr_debug("IQ timer is active\n");
621 } else
622 break;
623 loop:
624 if (!retry) {
625 pr_err("CP HQD IQ timer status time out\n");
626 break;
627 }
628 ndelay(100);
629 --retry;
630 }
631 retry = 1000;
632 while (true) {
633 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
634 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
635 break;
636 pr_debug("Dequeue request is pending\n");
637
638 if (!retry) {
639 pr_err("CP HQD dequeue request time out\n");
640 break;
641 }
642 ndelay(100);
643 --retry;
644 }
645 local_irq_restore(flags);
646 preempt_enable();
647
648 WREG32(mmCP_HQD_DEQUEUE_REQUEST, type);
649
650 end_jiffies = (utimeout * HZ / 1000) + jiffies;
651 while (true) {
652 temp = RREG32(mmCP_HQD_ACTIVE);
653 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
654 break;
655 if (time_after(jiffies, end_jiffies)) {
656 pr_err("cp queue preemption time out.\n");
657 release_queue(kgd);
658 return -ETIME;
659 }
660 usleep_range(500, 1000);
661 }
662
663 release_queue(kgd);
664 return 0;
665 }
666
kgd_hqd_sdma_destroy(struct kgd_dev * kgd,void * mqd,unsigned int utimeout)667 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
668 unsigned int utimeout)
669 {
670 struct amdgpu_device *adev = get_amdgpu_device(kgd);
671 struct vi_sdma_mqd *m;
672 uint32_t sdma_base_addr;
673 uint32_t temp;
674 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
675
676 m = get_sdma_mqd(mqd);
677 sdma_base_addr = get_sdma_base_addr(m);
678
679 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
680 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
681 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
682
683 while (true) {
684 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
685 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
686 break;
687 if (time_after(jiffies, end_jiffies))
688 return -ETIME;
689 usleep_range(500, 1000);
690 }
691
692 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
693 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
694 RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) |
695 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
696
697 m->sdmax_rlcx_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR);
698
699 return 0;
700 }
701
get_atc_vmid_pasid_mapping_valid(struct kgd_dev * kgd,uint8_t vmid)702 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
703 uint8_t vmid)
704 {
705 uint32_t reg;
706 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
707
708 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
709 return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
710 }
711
get_atc_vmid_pasid_mapping_pasid(struct kgd_dev * kgd,uint8_t vmid)712 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
713 uint8_t vmid)
714 {
715 uint32_t reg;
716 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
717
718 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
719 return reg & ATC_VMID0_PASID_MAPPING__PASID_MASK;
720 }
721
kgd_address_watch_disable(struct kgd_dev * kgd)722 static int kgd_address_watch_disable(struct kgd_dev *kgd)
723 {
724 return 0;
725 }
726
kgd_address_watch_execute(struct kgd_dev * kgd,unsigned int watch_point_id,uint32_t cntl_val,uint32_t addr_hi,uint32_t addr_lo)727 static int kgd_address_watch_execute(struct kgd_dev *kgd,
728 unsigned int watch_point_id,
729 uint32_t cntl_val,
730 uint32_t addr_hi,
731 uint32_t addr_lo)
732 {
733 return 0;
734 }
735
kgd_wave_control_execute(struct kgd_dev * kgd,uint32_t gfx_index_val,uint32_t sq_cmd)736 static int kgd_wave_control_execute(struct kgd_dev *kgd,
737 uint32_t gfx_index_val,
738 uint32_t sq_cmd)
739 {
740 struct amdgpu_device *adev = get_amdgpu_device(kgd);
741 uint32_t data = 0;
742
743 mutex_lock(&adev->grbm_idx_mutex);
744
745 WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
746 WREG32(mmSQ_CMD, sq_cmd);
747
748 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
749 INSTANCE_BROADCAST_WRITES, 1);
750 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
751 SH_BROADCAST_WRITES, 1);
752 data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
753 SE_BROADCAST_WRITES, 1);
754
755 WREG32(mmGRBM_GFX_INDEX, data);
756 mutex_unlock(&adev->grbm_idx_mutex);
757
758 return 0;
759 }
760
kgd_address_watch_get_offset(struct kgd_dev * kgd,unsigned int watch_point_id,unsigned int reg_offset)761 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
762 unsigned int watch_point_id,
763 unsigned int reg_offset)
764 {
765 return 0;
766 }
767
set_scratch_backing_va(struct kgd_dev * kgd,uint64_t va,uint32_t vmid)768 static void set_scratch_backing_va(struct kgd_dev *kgd,
769 uint64_t va, uint32_t vmid)
770 {
771 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
772
773 lock_srbm(kgd, 0, 0, 0, vmid);
774 WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va);
775 unlock_srbm(kgd);
776 }
777
get_fw_version(struct kgd_dev * kgd,enum kgd_engine_type type)778 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
779 {
780 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
781 const union amdgpu_firmware_header *hdr;
782
783 switch (type) {
784 case KGD_ENGINE_PFP:
785 hdr = (const union amdgpu_firmware_header *)
786 adev->gfx.pfp_fw->data;
787 break;
788
789 case KGD_ENGINE_ME:
790 hdr = (const union amdgpu_firmware_header *)
791 adev->gfx.me_fw->data;
792 break;
793
794 case KGD_ENGINE_CE:
795 hdr = (const union amdgpu_firmware_header *)
796 adev->gfx.ce_fw->data;
797 break;
798
799 case KGD_ENGINE_MEC1:
800 hdr = (const union amdgpu_firmware_header *)
801 adev->gfx.mec_fw->data;
802 break;
803
804 case KGD_ENGINE_MEC2:
805 hdr = (const union amdgpu_firmware_header *)
806 adev->gfx.mec2_fw->data;
807 break;
808
809 case KGD_ENGINE_RLC:
810 hdr = (const union amdgpu_firmware_header *)
811 adev->gfx.rlc_fw->data;
812 break;
813
814 case KGD_ENGINE_SDMA1:
815 hdr = (const union amdgpu_firmware_header *)
816 adev->sdma.instance[0].fw->data;
817 break;
818
819 case KGD_ENGINE_SDMA2:
820 hdr = (const union amdgpu_firmware_header *)
821 adev->sdma.instance[1].fw->data;
822 break;
823
824 default:
825 return 0;
826 }
827
828 if (hdr == NULL)
829 return 0;
830
831 /* Only 12 bit in use*/
832 return hdr->common.ucode_version;
833 }
834
set_vm_context_page_table_base(struct kgd_dev * kgd,uint32_t vmid,uint32_t page_table_base)835 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
836 uint32_t page_table_base)
837 {
838 struct amdgpu_device *adev = get_amdgpu_device(kgd);
839
840 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
841 pr_err("trying to set page table base for wrong VMID\n");
842 return;
843 }
844 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8, page_table_base);
845 }
846
invalidate_tlbs(struct kgd_dev * kgd,uint16_t pasid)847 static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid)
848 {
849 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
850 int vmid;
851 unsigned int tmp;
852
853 if (adev->in_gpu_reset)
854 return -EIO;
855
856 for (vmid = 0; vmid < 16; vmid++) {
857 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid))
858 continue;
859
860 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
861 if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
862 (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) {
863 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
864 RREG32(mmVM_INVALIDATE_RESPONSE);
865 break;
866 }
867 }
868
869 return 0;
870 }
871
invalidate_tlbs_vmid(struct kgd_dev * kgd,uint16_t vmid)872 static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid)
873 {
874 struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
875
876 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
877 pr_err("non kfd vmid %d\n", vmid);
878 return -EINVAL;
879 }
880
881 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
882 RREG32(mmVM_INVALIDATE_RESPONSE);
883 return 0;
884 }
885
