18 	struct intel_gsc_uc *gsc = container_of(work, typeof(*gsc), work);  in gsc_work()  local
19 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in gsc_work()
27 	actions = gsc->gsc_work_actions;  in gsc_work()
28 	gsc->gsc_work_actions = 0;  in gsc_work()
32 		ret = intel_gsc_uc_fw_upload(gsc);  in gsc_work()
47 		 * first and do proxy later. The GSC will ack the HuC auth and  in gsc_work()
50 		 * Note that we can only do the GSC auth if the GuC auth was  in gsc_work()
59 		if (!intel_gsc_uc_fw_init_done(gsc)) {  in gsc_work()
60 			gt_err(gt, "Proxy request received with GSC not loaded!\n");  in gsc_work()
64 		ret = intel_gsc_proxy_request_handler(gsc);  in gsc_work()
69 				 * step has failed so mark GSC as not usable after this  in gsc_work()
71 				gt_err(gt, "GSC proxy handler failed to init\n");  in gsc_work()
72 				intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_LOAD_FAIL);  in gsc_work()
77 		/* mark the GSC FW init as done the first time we run this */  in gsc_work()
80 			 * If there is a proxy establishment error, the GSC might still  in gsc_work()
84 			if (intel_gsc_uc_fw_proxy_init_done(gsc, false)) {  in gsc_work()
85 				gt_dbg(gt, "GSC Proxy initialized\n");  in gsc_work()
86 				intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_RUNNING);  in gsc_work()
88 				gt_err(gt, "GSC status reports proxy init not complete\n");  in gsc_work()
89 				intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_LOAD_FAIL);  in gsc_work()
118 void intel_gsc_uc_init_early(struct intel_gsc_uc *gsc)  in intel_gsc_uc_init_early()  argument
120 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in intel_gsc_uc_init_early()
123 	 * GSC FW needs to be copied to a dedicated memory allocations for  in intel_gsc_uc_init_early()
124 	 * loading (see gsc->local), so we don't need to GGTT map the FW image  in intel_gsc_uc_init_early()
127 	intel_uc_fw_init_early(&gsc->fw, INTEL_UC_FW_TYPE_GSC, false);  in intel_gsc_uc_init_early()
128 	INIT_WORK(&gsc->work, gsc_work);  in intel_gsc_uc_init_early()
135 		intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_NOT_SUPPORTED);  in intel_gsc_uc_init_early()
139 	gsc->wq = alloc_ordered_workqueue("i915_gsc", 0);  in intel_gsc_uc_init_early()
140 	if (!gsc->wq) {  in intel_gsc_uc_init_early()
141 		gt_err(gt, "failed to allocate WQ for GSC, disabling FW\n");  in intel_gsc_uc_init_early()
142 		intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_NOT_SUPPORTED);  in intel_gsc_uc_init_early()
146 static int gsc_allocate_and_map_vma(struct intel_gsc_uc *gsc, u32 size)  in gsc_allocate_and_map_vma()  argument
148 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in gsc_allocate_and_map_vma()
155 	 * The GSC FW doesn't immediately suspend after becoming idle, so there  in gsc_allocate_and_map_vma()
164 	 * way to do so is to use stolen memory for the GSC memory allocation,  in gsc_allocate_and_map_vma()
167 	 * it must be if the GSC is awake).  in gsc_allocate_and_map_vma()
188 	gsc->local = vma;  in gsc_allocate_and_map_vma()
189 	gsc->local_vaddr = vaddr;  in gsc_allocate_and_map_vma()
198 static void gsc_unmap_and_free_vma(struct intel_gsc_uc *gsc)  in gsc_unmap_and_free_vma()  argument
200 	struct i915_vma *vma = fetch_and_zero(&gsc->local);  in gsc_unmap_and_free_vma()
205 	gsc->local_vaddr = NULL;  in gsc_unmap_and_free_vma()
210 int intel_gsc_uc_init(struct intel_gsc_uc *gsc)  in intel_gsc_uc_init()  argument
213 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in intel_gsc_uc_init()
218 	err = intel_uc_fw_init(&gsc->fw);  in intel_gsc_uc_init()
222 	err = gsc_allocate_and_map_vma(gsc, SZ_4M);  in intel_gsc_uc_init()
230 		gt_err(gt, "failed to create GSC CS ctx for FW communication\n");  in intel_gsc_uc_init()
235 	gsc->ce = ce;  in intel_gsc_uc_init()
237 	/* if we fail to init proxy we still want to load GSC for PM */  in intel_gsc_uc_init()
238 	intel_gsc_proxy_init(gsc);  in intel_gsc_uc_init()
240 	intel_uc_fw_change_status(&gsc->fw, INTEL_UC_FIRMWARE_LOADABLE);  in intel_gsc_uc_init()
245 	gsc_unmap_and_free_vma(gsc);  in intel_gsc_uc_init()
247 	intel_uc_fw_fini(&gsc->fw);  in intel_gsc_uc_init()
249 	gt_probe_error(gt, "GSC init failed %pe\n", ERR_PTR(err));  in intel_gsc_uc_init()
253 void intel_gsc_uc_fini(struct intel_gsc_uc *gsc)  in intel_gsc_uc_fini()  argument
255 	if (!intel_uc_fw_is_loadable(&gsc->fw))  in intel_gsc_uc_fini()
258 	flush_work(&gsc->work);  in intel_gsc_uc_fini()
259 	if (gsc->wq) {  in intel_gsc_uc_fini()
260 		destroy_workqueue(gsc->wq);  in intel_gsc_uc_fini()
261 		gsc->wq = NULL;  in intel_gsc_uc_fini()
264 	intel_gsc_proxy_fini(gsc);  in intel_gsc_uc_fini()
266 	if (gsc->ce)  in intel_gsc_uc_fini()
267 		intel_engine_destroy_pinned_context(fetch_and_zero(&gsc->ce));  in intel_gsc_uc_fini()
269 	gsc_unmap_and_free_vma(gsc);  in intel_gsc_uc_fini()
271 	intel_uc_fw_fini(&gsc->fw);  in intel_gsc_uc_fini()
274 void intel_gsc_uc_flush_work(struct intel_gsc_uc *gsc)  in intel_gsc_uc_flush_work()  argument
276 	if (!intel_uc_fw_is_loadable(&gsc->fw))  in intel_gsc_uc_flush_work()
279 	flush_work(&gsc->work);  in intel_gsc_uc_flush_work()
282 void intel_gsc_uc_resume(struct intel_gsc_uc *gsc)  in intel_gsc_uc_resume()  argument
284 	if (!intel_uc_fw_is_loadable(&gsc->fw))  in intel_gsc_uc_resume()
288 	 * we only want to start the GSC worker from here in the actual resume  in intel_gsc_uc_resume()
289 	 * flow and not during driver load. This is because GSC load is slow and  in intel_gsc_uc_resume()
292 	 * intel_gsc_uc_load_start will ensure that the GSC is loaded during  in intel_gsc_uc_resume()
295 	if (!gsc_uc_to_gt(gsc)->engine[GSC0]->default_state)  in intel_gsc_uc_resume()
298 	intel_gsc_uc_load_start(gsc);  in intel_gsc_uc_resume()
301 void intel_gsc_uc_load_start(struct intel_gsc_uc *gsc)  in intel_gsc_uc_load_start()  argument
303 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in intel_gsc_uc_load_start()
305 	if (!intel_uc_fw_is_loadable(&gsc->fw) || intel_uc_fw_is_in_error(&gsc->fw))  in intel_gsc_uc_load_start()
308 	if (intel_gsc_uc_fw_init_done(gsc))  in intel_gsc_uc_load_start()
312 	gsc->gsc_work_actions |= GSC_ACTION_FW_LOAD;  in intel_gsc_uc_load_start()
315 	queue_work(gsc->wq, &gsc->work);  in intel_gsc_uc_load_start()
318 void intel_gsc_uc_load_status(struct intel_gsc_uc *gsc, struct drm_printer *p)  in intel_gsc_uc_load_status()  argument
320 	struct intel_gt *gt = gsc_uc_to_gt(gsc);  in intel_gsc_uc_load_status()
324 	if (!intel_gsc_uc_is_supported(gsc)) {  in intel_gsc_uc_load_status()
325 		drm_printf(p, "GSC not supported\n");  in intel_gsc_uc_load_status()
329 	if (!intel_gsc_uc_is_wanted(gsc)) {  in intel_gsc_uc_load_status()
330 		drm_printf(p, "GSC disabled\n");  in intel_gsc_uc_load_status()
334 	drm_printf(p, "GSC firmware: %s\n", gsc->fw.file_selected.path);  in intel_gsc_uc_load_status()
335 	if (gsc->fw.file_selected.path != gsc->fw.file_wanted.path)  in intel_gsc_uc_load_status()
336 		drm_printf(p, "GSC firmware wanted: %s\n", gsc->fw.file_wanted.path);  in intel_gsc_uc_load_status()
337 	drm_printf(p, "\tstatus: %s\n", intel_uc_fw_status_repr(gsc->fw.status));  in intel_gsc_uc_load_status()
340 		   gsc->release.major, gsc->release.minor,  in intel_gsc_uc_load_status()
341 		   gsc->release.patch, gsc->release.build);  in intel_gsc_uc_load_status()
344 		   gsc->fw.file_selected.ver.major, gsc->fw.file_selected.ver.minor,  in intel_gsc_uc_load_status()
345 		   gsc->fw.file_wanted.ver.major, gsc->fw.file_wanted.ver.minor);  in intel_gsc_uc_load_status()
347 	drm_printf(p, "SVN: %u\n", gsc->security_version);  in intel_gsc_uc_load_status()