2 * Copyright 2014 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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24 #include <linux/printk.h>
25 #include <linux/slab.h>
26 #include <linux/mm_types.h>
29 #include "kfd_mqd_manager.h"
31 #include "cik_structs.h"
32 #include "oss/oss_2_4_sh_mask.h"
34 static inline struct cik_mqd *get_mqd(void *mqd)
36 return (struct cik_mqd *)mqd;
39 static int init_mqd(struct mqd_manager *mm, void **mqd,
40 struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
41 struct queue_properties *q)
47 retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
53 m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
54 addr = (*mqd_mem_obj)->gpu_addr;
56 memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
58 m->header = 0xC0310800;
59 m->compute_pipelinestat_enable = 1;
60 m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
61 m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
62 m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
63 m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
66 * Make sure to use the last queue state saved on mqd when the cp
67 * reassigns the queue, so when queue is switched on/off (e.g over
68 * subscription or quantum timeout) the context will be consistent
70 m->cp_hqd_persistent_state =
71 DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
73 m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
74 m->cp_mqd_base_addr_lo = lower_32_bits(addr);
75 m->cp_mqd_base_addr_hi = upper_32_bits(addr);
77 m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE | IB_ATC_EN;
78 /* Although WinKFD writes this, I suspect it should not be necessary */
79 m->cp_hqd_ib_control = IB_ATC_EN | DEFAULT_MIN_IB_AVAIL_SIZE;
81 m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
86 * Identifies the pipe relative priority when this queue is connected
87 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
88 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
89 * 0 = CS_LOW (typically below GFX)
90 * 1 = CS_MEDIUM (typically between HP3D and GFX
91 * 2 = CS_HIGH (typically above HP3D)
93 m->cp_hqd_pipe_priority = 1;
94 m->cp_hqd_queue_priority = 15;
96 if (q->format == KFD_QUEUE_FORMAT_AQL)
97 m->cp_hqd_iq_rptr = AQL_ENABLE;
102 retval = mm->update_mqd(mm, m, q);
107 static int init_mqd_sdma(struct mqd_manager *mm, void **mqd,
108 struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
109 struct queue_properties *q)
112 struct cik_sdma_rlc_registers *m;
114 retval = kfd_gtt_sa_allocate(mm->dev,
115 sizeof(struct cik_sdma_rlc_registers),
121 m = (struct cik_sdma_rlc_registers *) (*mqd_mem_obj)->cpu_ptr;
123 memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
127 *gart_addr = (*mqd_mem_obj)->gpu_addr;
129 retval = mm->update_mqd(mm, m, q);
134 static void uninit_mqd(struct mqd_manager *mm, void *mqd,
135 struct kfd_mem_obj *mqd_mem_obj)
137 kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
140 static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
141 struct kfd_mem_obj *mqd_mem_obj)
143 kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
146 static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
147 uint32_t queue_id, struct queue_properties *p,
148 struct mm_struct *mms)
150 /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
151 uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
152 uint32_t wptr_mask = (uint32_t)((p->queue_size / sizeof(uint32_t)) - 1);
154 return mm->dev->kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id,
155 (uint32_t __user *)p->write_ptr,
156 wptr_shift, wptr_mask, mms);
159 static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
160 uint32_t pipe_id, uint32_t queue_id,
161 struct queue_properties *p, struct mm_struct *mms)
163 return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
166 static int update_mqd(struct mqd_manager *mm, void *mqd,
167 struct queue_properties *q)
172 m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
173 DEFAULT_MIN_AVAIL_SIZE | PQ_ATC_EN;
176 * Calculating queue size which is log base 2 of actual queue size -1
177 * dwords and another -1 for ffs
179 m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
181 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
182 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
183 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
184 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
185 m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off);
187 m->cp_hqd_vmid = q->vmid;
189 if (q->format == KFD_QUEUE_FORMAT_AQL)
190 m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
192 q->is_active = false;
193 if (q->queue_size > 0 &&
194 q->queue_address != 0 &&
195 q->queue_percent > 0) {
202 static int update_mqd_sdma(struct mqd_manager *mm, void *mqd,
203 struct queue_properties *q)
205 struct cik_sdma_rlc_registers *m;
207 m = get_sdma_mqd(mqd);
208 m->sdma_rlc_rb_cntl = (ffs(q->queue_size / sizeof(unsigned int)) - 1)
209 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
210 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
211 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
212 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
214 m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
215 m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
216 m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
217 m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
218 m->sdma_rlc_doorbell = q->doorbell_off <<
219 SDMA0_RLC0_DOORBELL__OFFSET__SHIFT |
220 1 << SDMA0_RLC0_DOORBELL__ENABLE__SHIFT;
222 m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
224 m->sdma_engine_id = q->sdma_engine_id;
225 m->sdma_queue_id = q->sdma_queue_id;
227 q->is_active = false;
228 if (q->queue_size > 0 &&
229 q->queue_address != 0 &&
230 q->queue_percent > 0) {
231 m->sdma_rlc_rb_cntl |=
232 1 << SDMA0_RLC0_RB_CNTL__RB_ENABLE__SHIFT;
240 static int destroy_mqd(struct mqd_manager *mm, void *mqd,
241 enum kfd_preempt_type type,
242 unsigned int timeout, uint32_t pipe_id,
245 return mm->dev->kfd2kgd->hqd_destroy(mm->dev->kgd, mqd, type, timeout,
250 * preempt type here is ignored because there is only one way
251 * to preempt sdma queue
253 static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
254 enum kfd_preempt_type type,
255 unsigned int timeout, uint32_t pipe_id,
258 return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
261 static bool is_occupied(struct mqd_manager *mm, void *mqd,
262 uint64_t queue_address, uint32_t pipe_id,
266 return mm->dev->kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
271 static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
272 uint64_t queue_address, uint32_t pipe_id,
275 return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
279 * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
280 * The HIQ queue in Kaveri is using the same MQD structure as all the user mode
281 * queues but with different initial values.
284 static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
285 struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
286 struct queue_properties *q)
288 return init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
291 static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
292 struct queue_properties *q)
297 m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
298 DEFAULT_MIN_AVAIL_SIZE |
303 * Calculating queue size which is log base 2 of actual queue
306 m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
308 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
309 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
310 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
311 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
312 m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
313 DOORBELL_OFFSET(q->doorbell_off);
315 m->cp_hqd_vmid = q->vmid;
317 m->cp_hqd_active = 0;
318 q->is_active = false;
319 if (q->queue_size > 0 &&
320 q->queue_address != 0 &&
321 q->queue_percent > 0) {
322 m->cp_hqd_active = 1;
329 struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
331 struct cik_sdma_rlc_registers *m;
333 m = (struct cik_sdma_rlc_registers *)mqd;
338 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
341 struct mqd_manager *mqd;
343 if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
346 mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
353 case KFD_MQD_TYPE_CP:
354 case KFD_MQD_TYPE_COMPUTE:
355 mqd->init_mqd = init_mqd;
356 mqd->uninit_mqd = uninit_mqd;
357 mqd->load_mqd = load_mqd;
358 mqd->update_mqd = update_mqd;
359 mqd->destroy_mqd = destroy_mqd;
360 mqd->is_occupied = is_occupied;
362 case KFD_MQD_TYPE_HIQ:
363 mqd->init_mqd = init_mqd_hiq;
364 mqd->uninit_mqd = uninit_mqd;
365 mqd->load_mqd = load_mqd;
366 mqd->update_mqd = update_mqd_hiq;
367 mqd->destroy_mqd = destroy_mqd;
368 mqd->is_occupied = is_occupied;
370 case KFD_MQD_TYPE_SDMA:
371 mqd->init_mqd = init_mqd_sdma;
372 mqd->uninit_mqd = uninit_mqd_sdma;
373 mqd->load_mqd = load_mqd_sdma;
374 mqd->update_mqd = update_mqd_sdma;
375 mqd->destroy_mqd = destroy_mqd_sdma;
376 mqd->is_occupied = is_occupied_sdma;