2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
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
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.
24 #include <linux/printk.h>
25 #include <linux/slab.h>
27 #include "kfd_mqd_manager.h"
29 #include "cik_structs.h"
31 static inline struct cik_mqd
*get_mqd(void *mqd
)
33 return (struct cik_mqd
*)mqd
;
36 static int init_mqd(struct mqd_manager
*mm
, void **mqd
,
37 struct kfd_mem_obj
**mqd_mem_obj
, uint64_t *gart_addr
,
38 struct queue_properties
*q
)
44 BUG_ON(!mm
|| !q
|| !mqd
);
46 pr_debug("kfd: In func %s\n", __func__
);
48 retval
= kfd_gtt_sa_allocate(mm
->dev
, sizeof(struct cik_mqd
),
54 m
= (struct cik_mqd
*) (*mqd_mem_obj
)->cpu_ptr
;
55 addr
= (*mqd_mem_obj
)->gpu_addr
;
57 memset(m
, 0, ALIGN(sizeof(struct cik_mqd
), 256));
59 m
->header
= 0xC0310800;
60 m
->compute_pipelinestat_enable
= 1;
61 m
->compute_static_thread_mgmt_se0
= 0xFFFFFFFF;
62 m
->compute_static_thread_mgmt_se1
= 0xFFFFFFFF;
63 m
->compute_static_thread_mgmt_se2
= 0xFFFFFFFF;
64 m
->compute_static_thread_mgmt_se3
= 0xFFFFFFFF;
67 * Make sure to use the last queue state saved on mqd when the cp
68 * reassigns the queue, so when queue is switched on/off (e.g over
69 * subscription or quantum timeout) the context will be consistent
71 m
->cp_hqd_persistent_state
=
72 DEFAULT_CP_HQD_PERSISTENT_STATE
| PRELOAD_REQ
;
74 m
->cp_mqd_control
= MQD_CONTROL_PRIV_STATE_EN
;
75 m
->cp_mqd_base_addr_lo
= lower_32_bits(addr
);
76 m
->cp_mqd_base_addr_hi
= upper_32_bits(addr
);
78 m
->cp_hqd_ib_control
= DEFAULT_MIN_IB_AVAIL_SIZE
| IB_ATC_EN
;
79 /* Although WinKFD writes this, I suspect it should not be necessary */
80 m
->cp_hqd_ib_control
= IB_ATC_EN
| DEFAULT_MIN_IB_AVAIL_SIZE
;
82 m
->cp_hqd_quantum
= QUANTUM_EN
| QUANTUM_SCALE_1MS
|
87 * Identifies the pipe relative priority when this queue is connected
88 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
89 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
90 * 0 = CS_LOW (typically below GFX)
91 * 1 = CS_MEDIUM (typically between HP3D and GFX
92 * 2 = CS_HIGH (typically above HP3D)
94 m
->cp_hqd_pipe_priority
= 1;
95 m
->cp_hqd_queue_priority
= 15;
97 if (q
->format
== KFD_QUEUE_FORMAT_AQL
)
98 m
->cp_hqd_iq_rptr
= AQL_ENABLE
;
101 if (gart_addr
!= NULL
)
103 retval
= mm
->update_mqd(mm
, m
, q
);
108 static int init_mqd_sdma(struct mqd_manager
*mm
, void **mqd
,
109 struct kfd_mem_obj
**mqd_mem_obj
, uint64_t *gart_addr
,
110 struct queue_properties
*q
)
113 struct cik_sdma_rlc_registers
*m
;
115 BUG_ON(!mm
|| !mqd
|| !mqd_mem_obj
);
117 retval
= kfd_gtt_sa_allocate(mm
->dev
,
118 sizeof(struct cik_sdma_rlc_registers
),
124 m
= (struct cik_sdma_rlc_registers
*) (*mqd_mem_obj
)->cpu_ptr
;
126 memset(m
, 0, sizeof(struct cik_sdma_rlc_registers
));
129 if (gart_addr
!= NULL
)
130 *gart_addr
= (*mqd_mem_obj
)->gpu_addr
;
132 retval
= mm
->update_mqd(mm
, m
, q
);
137 static void uninit_mqd(struct mqd_manager
*mm
, void *mqd
,
138 struct kfd_mem_obj
*mqd_mem_obj
)
141 kfd_gtt_sa_free(mm
->dev
, mqd_mem_obj
);
144 static void uninit_mqd_sdma(struct mqd_manager
*mm
, void *mqd
,
145 struct kfd_mem_obj
*mqd_mem_obj
)
148 kfd_gtt_sa_free(mm
->dev
, mqd_mem_obj
);
151 static int load_mqd(struct mqd_manager
*mm
, void *mqd
, uint32_t pipe_id
,
152 uint32_t queue_id
, uint32_t __user
*wptr
)
154 return mm
->dev
->kfd2kgd
->hqd_load
155 (mm
->dev
->kgd
, mqd
, pipe_id
, queue_id
, wptr
);
158 static int load_mqd_sdma(struct mqd_manager
*mm
, void *mqd
,
159 uint32_t pipe_id
, uint32_t queue_id
,
160 uint32_t __user
*wptr
)
162 return mm
->dev
->kfd2kgd
->hqd_sdma_load(mm
->dev
->kgd
, mqd
);
165 static int update_mqd(struct mqd_manager
*mm
, void *mqd
,
166 struct queue_properties
*q
)
170 BUG_ON(!mm
|| !q
|| !mqd
);
172 pr_debug("kfd: In func %s\n", __func__
);
175 m
->cp_hqd_pq_control
= DEFAULT_RPTR_BLOCK_SIZE
|
176 DEFAULT_MIN_AVAIL_SIZE
| PQ_ATC_EN
;
179 * Calculating queue size which is log base 2 of actual queue size -1
180 * dwords and another -1 for ffs
182 m
->cp_hqd_pq_control
|= ffs(q
->queue_size
/ sizeof(unsigned int))
184 m
->cp_hqd_pq_base_lo
= lower_32_bits((uint64_t)q
->queue_address
>> 8);
185 m
->cp_hqd_pq_base_hi
= upper_32_bits((uint64_t)q
->queue_address
>> 8);
186 m
->cp_hqd_pq_rptr_report_addr_lo
= lower_32_bits((uint64_t)q
->read_ptr
);
187 m
->cp_hqd_pq_rptr_report_addr_hi
= upper_32_bits((uint64_t)q
->read_ptr
);
188 m
->cp_hqd_pq_doorbell_control
= DOORBELL_EN
|
189 DOORBELL_OFFSET(q
->doorbell_off
);
191 m
->cp_hqd_vmid
= q
->vmid
;
193 if (q
->format
== KFD_QUEUE_FORMAT_AQL
) {
194 m
->cp_hqd_pq_control
|= NO_UPDATE_RPTR
;
197 m
->cp_hqd_active
= 0;
198 q
->is_active
= false;
199 if (q
->queue_size
> 0 &&
200 q
->queue_address
!= 0 &&
201 q
->queue_percent
> 0) {
202 m
->cp_hqd_active
= 1;
209 static int update_mqd_sdma(struct mqd_manager
*mm
, void *mqd
,
210 struct queue_properties
*q
)
212 struct cik_sdma_rlc_registers
*m
;
214 BUG_ON(!mm
|| !mqd
|| !q
);
216 m
= get_sdma_mqd(mqd
);
217 m
->sdma_rlc_rb_cntl
=
218 SDMA_RB_SIZE((ffs(q
->queue_size
/ sizeof(unsigned int)))) |
219 SDMA_RB_VMID(q
->vmid
) |
220 SDMA_RPTR_WRITEBACK_ENABLE
|
221 SDMA_RPTR_WRITEBACK_TIMER(6);
223 m
->sdma_rlc_rb_base
= lower_32_bits(q
->queue_address
>> 8);
224 m
->sdma_rlc_rb_base_hi
= upper_32_bits(q
->queue_address
>> 8);
225 m
->sdma_rlc_rb_rptr_addr_lo
= lower_32_bits((uint64_t)q
->read_ptr
);
226 m
->sdma_rlc_rb_rptr_addr_hi
= upper_32_bits((uint64_t)q
->read_ptr
);
227 m
->sdma_rlc_doorbell
= SDMA_OFFSET(q
->doorbell_off
) | SDMA_DB_ENABLE
;
228 m
->sdma_rlc_virtual_addr
= q
->sdma_vm_addr
;
230 m
->sdma_engine_id
= q
->sdma_engine_id
;
231 m
->sdma_queue_id
= q
->sdma_queue_id
;
233 q
->is_active
= false;
234 if (q
->queue_size
> 0 &&
235 q
->queue_address
!= 0 &&
236 q
->queue_percent
> 0) {
237 m
->sdma_rlc_rb_cntl
|= SDMA_RB_ENABLE
;
244 static int destroy_mqd(struct mqd_manager
*mm
, void *mqd
,
245 enum kfd_preempt_type type
,
246 unsigned int timeout
, uint32_t pipe_id
,
249 return mm
->dev
->kfd2kgd
->hqd_destroy(mm
->dev
->kgd
, type
, timeout
,
254 * preempt type here is ignored because there is only one way
255 * to preempt sdma queue
257 static int destroy_mqd_sdma(struct mqd_manager
*mm
, void *mqd
,
258 enum kfd_preempt_type type
,
259 unsigned int timeout
, uint32_t pipe_id
,
262 return mm
->dev
->kfd2kgd
->hqd_sdma_destroy(mm
->dev
->kgd
, mqd
, timeout
);
265 static bool is_occupied(struct mqd_manager
*mm
, void *mqd
,
266 uint64_t queue_address
, uint32_t pipe_id
,
270 return mm
->dev
->kfd2kgd
->hqd_is_occupied(mm
->dev
->kgd
, queue_address
,
275 static bool is_occupied_sdma(struct mqd_manager
*mm
, void *mqd
,
276 uint64_t queue_address
, uint32_t pipe_id
,
279 return mm
->dev
->kfd2kgd
->hqd_sdma_is_occupied(mm
->dev
->kgd
, mqd
);
283 * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
284 * The HIQ queue in Kaveri is using the same MQD structure as all the user mode
285 * queues but with different initial values.
288 static int init_mqd_hiq(struct mqd_manager
*mm
, void **mqd
,
289 struct kfd_mem_obj
**mqd_mem_obj
, uint64_t *gart_addr
,
290 struct queue_properties
*q
)
296 BUG_ON(!mm
|| !q
|| !mqd
|| !mqd_mem_obj
);
298 pr_debug("kfd: In func %s\n", __func__
);
300 retval
= kfd_gtt_sa_allocate(mm
->dev
, sizeof(struct cik_mqd
),
306 m
= (struct cik_mqd
*) (*mqd_mem_obj
)->cpu_ptr
;
307 addr
= (*mqd_mem_obj
)->gpu_addr
;
309 memset(m
, 0, ALIGN(sizeof(struct cik_mqd
), 256));
311 m
->header
= 0xC0310800;
312 m
->compute_pipelinestat_enable
= 1;
313 m
->compute_static_thread_mgmt_se0
= 0xFFFFFFFF;
314 m
->compute_static_thread_mgmt_se1
= 0xFFFFFFFF;
315 m
->compute_static_thread_mgmt_se2
= 0xFFFFFFFF;
316 m
->compute_static_thread_mgmt_se3
= 0xFFFFFFFF;
318 m
->cp_hqd_persistent_state
= DEFAULT_CP_HQD_PERSISTENT_STATE
|
320 m
->cp_hqd_quantum
= QUANTUM_EN
| QUANTUM_SCALE_1MS
|
321 QUANTUM_DURATION(10);
323 m
->cp_mqd_control
= MQD_CONTROL_PRIV_STATE_EN
;
324 m
->cp_mqd_base_addr_lo
= lower_32_bits(addr
);
325 m
->cp_mqd_base_addr_hi
= upper_32_bits(addr
);
327 m
->cp_hqd_ib_control
= DEFAULT_MIN_IB_AVAIL_SIZE
;
331 * Identifies the pipe relative priority when this queue is connected
332 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
333 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
334 * 0 = CS_LOW (typically below GFX)
335 * 1 = CS_MEDIUM (typically between HP3D and GFX
336 * 2 = CS_HIGH (typically above HP3D)
338 m
->cp_hqd_pipe_priority
= 1;
339 m
->cp_hqd_queue_priority
= 15;
344 retval
= mm
->update_mqd(mm
, m
, q
);
349 static int update_mqd_hiq(struct mqd_manager
*mm
, void *mqd
,
350 struct queue_properties
*q
)
354 BUG_ON(!mm
|| !q
|| !mqd
);
356 pr_debug("kfd: In func %s\n", __func__
);
359 m
->cp_hqd_pq_control
= DEFAULT_RPTR_BLOCK_SIZE
|
360 DEFAULT_MIN_AVAIL_SIZE
|
365 * Calculating queue size which is log base 2 of actual queue
368 m
->cp_hqd_pq_control
|= ffs(q
->queue_size
/ sizeof(unsigned int))
370 m
->cp_hqd_pq_base_lo
= lower_32_bits((uint64_t)q
->queue_address
>> 8);
371 m
->cp_hqd_pq_base_hi
= upper_32_bits((uint64_t)q
->queue_address
>> 8);
372 m
->cp_hqd_pq_rptr_report_addr_lo
= lower_32_bits((uint64_t)q
->read_ptr
);
373 m
->cp_hqd_pq_rptr_report_addr_hi
= upper_32_bits((uint64_t)q
->read_ptr
);
374 m
->cp_hqd_pq_doorbell_control
= DOORBELL_EN
|
375 DOORBELL_OFFSET(q
->doorbell_off
);
377 m
->cp_hqd_vmid
= q
->vmid
;
379 m
->cp_hqd_active
= 0;
380 q
->is_active
= false;
381 if (q
->queue_size
> 0 &&
382 q
->queue_address
!= 0 &&
383 q
->queue_percent
> 0) {
384 m
->cp_hqd_active
= 1;
391 struct cik_sdma_rlc_registers
*get_sdma_mqd(void *mqd
)
393 struct cik_sdma_rlc_registers
*m
;
397 m
= (struct cik_sdma_rlc_registers
*)mqd
;
402 struct mqd_manager
*mqd_manager_init_cik(enum KFD_MQD_TYPE type
,
405 struct mqd_manager
*mqd
;
408 BUG_ON(type
>= KFD_MQD_TYPE_MAX
);
410 pr_debug("kfd: In func %s\n", __func__
);
412 mqd
= kzalloc(sizeof(struct mqd_manager
), GFP_KERNEL
);
419 case KFD_MQD_TYPE_CP
:
420 case KFD_MQD_TYPE_COMPUTE
:
421 mqd
->init_mqd
= init_mqd
;
422 mqd
->uninit_mqd
= uninit_mqd
;
423 mqd
->load_mqd
= load_mqd
;
424 mqd
->update_mqd
= update_mqd
;
425 mqd
->destroy_mqd
= destroy_mqd
;
426 mqd
->is_occupied
= is_occupied
;
428 case KFD_MQD_TYPE_HIQ
:
429 mqd
->init_mqd
= init_mqd_hiq
;
430 mqd
->uninit_mqd
= uninit_mqd
;
431 mqd
->load_mqd
= load_mqd
;
432 mqd
->update_mqd
= update_mqd_hiq
;
433 mqd
->destroy_mqd
= destroy_mqd
;
434 mqd
->is_occupied
= is_occupied
;
436 case KFD_MQD_TYPE_SDMA
:
437 mqd
->init_mqd
= init_mqd_sdma
;
438 mqd
->uninit_mqd
= uninit_mqd_sdma
;
439 mqd
->load_mqd
= load_mqd_sdma
;
440 mqd
->update_mqd
= update_mqd_sdma
;
441 mqd
->destroy_mqd
= destroy_mqd_sdma
;
442 mqd
->is_occupied
= is_occupied_sdma
;