Lines Matching refs:kq
41 static bool kq_initialize(struct kernel_queue *kq, struct kfd_node *dev,
61 kq->dev = dev;
62 kq->nop_packet = nop.u32all;
65 kq->mqd_mgr = dev->dqm->mqd_mgrs[KFD_MQD_TYPE_DIQ];
68 kq->mqd_mgr = dev->dqm->mqd_mgrs[KFD_MQD_TYPE_HIQ];
75 if (!kq->mqd_mgr)
85 retval = kfd_gtt_sa_allocate(dev, queue_size, &kq->pq);
91 kq->pq_kernel_addr = kq->pq->cpu_ptr;
92 kq->pq_gpu_addr = kq->pq->gpu_addr;
94 /* For CIK family asics, kq->eop_mem is not needed */
96 retval = kfd_gtt_sa_allocate(dev, PAGE_SIZE, &kq->eop_mem);
100 kq->eop_gpu_addr = kq->eop_mem->gpu_addr;
101 kq->eop_kernel_addr = kq->eop_mem->cpu_ptr;
103 memset(kq->eop_kernel_addr, 0, PAGE_SIZE);
106 retval = kfd_gtt_sa_allocate(dev, sizeof(*kq->rptr_kernel),
107 &kq->rptr_mem);
112 kq->rptr_kernel = kq->rptr_mem->cpu_ptr;
113 kq->rptr_gpu_addr = kq->rptr_mem->gpu_addr;
116 &kq->wptr_mem);
121 kq->wptr_kernel = kq->wptr_mem->cpu_ptr;
122 kq->wptr_gpu_addr = kq->wptr_mem->gpu_addr;
124 memset(kq->pq_kernel_addr, 0, queue_size);
125 memset(kq->rptr_kernel, 0, sizeof(*kq->rptr_kernel));
126 memset(kq->wptr_kernel, 0, sizeof(*kq->wptr_kernel));
135 prop.queue_address = kq->pq_gpu_addr;
136 prop.read_ptr = (uint32_t *) kq->rptr_gpu_addr;
137 prop.write_ptr = (uint32_t *) kq->wptr_gpu_addr;
138 prop.eop_ring_buffer_address = kq->eop_gpu_addr;
141 if (init_queue(&kq->queue, &prop) != 0)
144 kq->queue->device = dev;
145 kq->queue->process = kfd_get_process(current);
147 kq->queue->mqd_mem_obj = kq->mqd_mgr->allocate_mqd(kq->mqd_mgr->dev,
148 &kq->queue->properties);
149 if (!kq->queue->mqd_mem_obj)
151 kq->mqd_mgr->init_mqd(kq->mqd_mgr, &kq->queue->mqd,
152 kq->queue->mqd_mem_obj,
153 &kq->queue->gart_mqd_addr,
154 &kq->queue->properties);
158 kq->queue->pipe = KFD_CIK_HIQ_PIPE;
159 kq->queue->queue = KFD_CIK_HIQ_QUEUE;
160 kq->mqd_mgr->load_mqd(kq->mqd_mgr, kq->queue->mqd,
161 kq->queue->pipe, kq->queue->queue,
162 &kq->queue->properties, NULL);
167 &kq->fence_mem_obj);
172 kq->fence_kernel_address = kq->fence_mem_obj->cpu_ptr;
173 kq->fence_gpu_addr = kq->fence_mem_obj->gpu_addr;
176 print_queue(kq->queue);
180 kq->mqd_mgr->free_mqd(kq->mqd_mgr, kq->queue->mqd, kq->queue->mqd_mem_obj);
182 uninit_queue(kq->queue);
184 kfd_gtt_sa_free(dev, kq->wptr_mem);
186 kfd_gtt_sa_free(dev, kq->rptr_mem);
188 kfd_gtt_sa_free(dev, kq->eop_mem);
190 kfd_gtt_sa_free(dev, kq->pq);
199 static void kq_uninitialize(struct kernel_queue *kq, bool hanging)
201 if (kq->queue->properties.type == KFD_QUEUE_TYPE_HIQ && !hanging)
202 kq->mqd_mgr->destroy_mqd(kq->mqd_mgr,
203 kq->queue->mqd,
206 kq->queue->pipe,
207 kq->queue->queue);
208 else if (kq->queue->properties.type == KFD_QUEUE_TYPE_DIQ)
209 kfd_gtt_sa_free(kq->dev, kq->fence_mem_obj);
211 kq->mqd_mgr->free_mqd(kq->mqd_mgr, kq->queue->mqd,
212 kq->queue->mqd_mem_obj);
214 kfd_gtt_sa_free(kq->dev, kq->rptr_mem);
215 kfd_gtt_sa_free(kq->dev, kq->wptr_mem);
217 /* For CIK family asics, kq->eop_mem is Null, kfd_gtt_sa_free()
220 kfd_gtt_sa_free(kq->dev, kq->eop_mem);
222 kfd_gtt_sa_free(kq->dev, kq->pq);
223 kfd_release_kernel_doorbell(kq->dev->kfd,
224 kq->queue->properties.doorbell_ptr);
225 uninit_queue(kq->queue);
228 int kq_acquire_packet_buffer(struct kernel_queue *kq,
242 rptr = *kq->rptr_kernel;
243 wptr = kq->pending_wptr;
244 wptr64 = kq->pending_wptr64;
245 queue_address = (unsigned int *)kq->pq_kernel_addr;
246 queue_size_dwords = kq->queue->properties.queue_size / 4;
272 queue_address[wptr] = kq->nop_packet;
279 kq->pending_wptr = wptr + packet_size_in_dwords;
280 kq->pending_wptr64 = wptr64 + packet_size_in_dwords;
289 int kq_submit_packet(struct kernel_queue *kq)
294 for (i = *kq->wptr_kernel; i < kq->pending_wptr; i++) {
295 pr_debug("0x%2X ", kq->pq_kernel_addr[i]);
302 if (amdgpu_amdkfd_is_fed(kq->dev->adev))
305 if (kq->dev->kfd->device_info.doorbell_size == 8) {
306 *kq->wptr64_kernel = kq->pending_wptr64;
307 write_kernel_doorbell64(kq->queue->properties.doorbell_ptr,
308 kq->pending_wptr64);
310 *kq->wptr_kernel = kq->pending_wptr;
311 write_kernel_doorbell(kq->queue->properties.doorbell_ptr,
312 kq->pending_wptr);
318 void kq_rollback_packet(struct kernel_queue *kq)
320 if (kq->dev->kfd->device_info.doorbell_size == 8) {
321 kq->pending_wptr64 = *kq->wptr64_kernel;
322 kq->pending_wptr = *kq->wptr_kernel %
323 (kq->queue->properties.queue_size / 4);
325 kq->pending_wptr = *kq->wptr_kernel;
332 struct kernel_queue *kq;
334 kq = kzalloc(sizeof(*kq), GFP_KERNEL);
335 if (!kq)
338 if (kq_initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE))
339 return kq;
343 kfree(kq);
347 void kernel_queue_uninit(struct kernel_queue *kq, bool hanging)
349 kq_uninitialize(kq, hanging);
350 kfree(kq);
356 struct kernel_queue *kq;
362 kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_HIQ);
363 if (unlikely(!kq)) {
369 retval = kq_acquire_packet_buffer(kq, 5, &buffer);
376 buffer[i] = kq->nop_packet;
377 kq_submit_packet(kq);