143 static bool ctch_is_open(struct intel_guc_ct_channel *ctch)  in ctch_is_open()  argument
145 	return ctch->vma != NULL;  in ctch_is_open()
149 		     struct intel_guc_ct_channel *ctch)  in ctch_init()  argument
156 	GEM_BUG_ON(ctch->vma);  in ctch_init()
186 	ctch->vma = vma;  in ctch_init()
195 			intel_guc_ggtt_offset(guc, ctch->vma));  in ctch_init()
198 	for (i = 0; i < ARRAY_SIZE(ctch->ctbs); i++) {  in ctch_init()
200 		ctch->ctbs[i].desc = blob + PAGE_SIZE/4 * i;  in ctch_init()
201 		ctch->ctbs[i].cmds = blob + PAGE_SIZE/4 * i + PAGE_SIZE/2;  in ctch_init()
207 	i915_vma_unpin_and_release(&ctch->vma);  in ctch_init()
210 			ctch->owner, err);  in ctch_init()
215 		      struct intel_guc_ct_channel *ctch)  in ctch_fini()  argument
217 	GEM_BUG_ON(!ctch->vma);  in ctch_fini()
219 	i915_gem_object_unpin_map(ctch->vma->obj);  in ctch_fini()
220 	i915_vma_unpin_and_release(&ctch->vma);  in ctch_fini()
224 		     struct intel_guc_ct_channel *ctch)  in ctch_open()  argument
231 			ctch->owner, yesno(ctch_is_open(ctch)));  in ctch_open()
233 	if (!ctch->vma) {  in ctch_open()
234 		err = ctch_init(guc, ctch);  in ctch_open()
237 		GEM_BUG_ON(!ctch->vma);  in ctch_open()
241 	base = intel_guc_ggtt_offset(guc, ctch->vma);  in ctch_open()
246 	for (i = 0; i < ARRAY_SIZE(ctch->ctbs); i++) {  in ctch_open()
248 		guc_ct_buffer_desc_init(ctch->ctbs[i].desc,  in ctch_open()
251 					ctch->owner);  in ctch_open()
273 					ctch->owner,  in ctch_open()
276 	ctch_fini(guc, ctch);  in ctch_open()
278 	DRM_ERROR("CT: can't open channel %d; err=%d\n", ctch->owner, err);  in ctch_open()
283 		       struct intel_guc_ct_channel *ctch)  in ctch_close()  argument
285 	GEM_BUG_ON(!ctch_is_open(ctch));  in ctch_close()
288 					ctch->owner,  in ctch_close()
291 					ctch->owner,  in ctch_close()
293 	ctch_fini(guc, ctch);  in ctch_close()
296 static u32 ctch_get_next_fence(struct intel_guc_ct_channel *ctch)  in ctch_get_next_fence()  argument
299 	return ++ctch->next_fence;  in ctch_get_next_fence()
473 		     struct intel_guc_ct_channel *ctch,  in ctch_send()  argument
480 	struct intel_guc_ct_buffer *ctb = &ctch->ctbs[CTB_SEND];  in ctch_send()
487 	GEM_BUG_ON(!ctch_is_open(ctch));  in ctch_send()
492 	fence = ctch_get_next_fence(ctch);  in ctch_send()
547 	struct intel_guc_ct_channel *ctch = &ct->host_channel;  in intel_guc_send_ct()  local
553 	ret = ctch_send(ct, ctch, action, len, response_buf, response_buf_size,  in intel_guc_send_ct()
818 	struct intel_guc_ct_channel *ctch = &ct->host_channel;  in ct_process_host_channel()  local
819 	struct intel_guc_ct_buffer *ctb = &ctch->ctbs[CTB_RECV];  in ct_process_host_channel()
823 	if (!ctch_is_open(ctch))  in ct_process_host_channel()
866 	struct intel_guc_ct_channel *ctch = &ct->host_channel;  in intel_guc_ct_enable()  local
871 	err = ctch_open(guc, ctch);  in intel_guc_ct_enable()
892 	struct intel_guc_ct_channel *ctch = &ct->host_channel;  in intel_guc_ct_disable()  local
896 	if (!ctch_is_open(ctch))  in intel_guc_ct_disable()
899 	ctch_close(guc, ctch);  in intel_guc_ct_disable()