1 // SPDX-License-Identifier: MIT
3  * Copyright(c) 2019-2022, Intel Corporation. All rights reserved.
49 	obj = i915_gem_object_create_lmem(gt->i915, size,  in gsc_ext_om_alloc()
63 	intf->gem_obj = obj;  in gsc_ext_om_alloc()
74 	struct drm_i915_gem_object *obj = fetch_and_zero(&intf->gem_obj);  in gsc_ext_om_destroy()
100 		.name = "mei-gscfi",
108 		.name = "mei-gsc",
114 		.name = "mei-gscfi",
131 	struct intel_gsc_intf *intf = &gsc->intf[intf_id];  in gsc_destroy_one()
133 	if (intf->adev) {  in gsc_destroy_one()
134 		struct auxiliary_device *aux_dev = &intf->adev->aux_dev;  in gsc_destroy_one()
137 			intel_huc_unregister_gsc_notifier(&gsc_to_gt(gsc)->uc.huc,  in gsc_destroy_one()
138 							  aux_dev->dev.bus);  in gsc_destroy_one()
142 		intf->adev = NULL;  in gsc_destroy_one()
145 	if (intf->irq >= 0)  in gsc_destroy_one()
146 		irq_free_desc(intf->irq);  in gsc_destroy_one()
147 	intf->irq = -1;  in gsc_destroy_one()
155 	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);  in gsc_init_one()
159 	struct intel_gsc_intf *intf = &gsc->intf[intf_id];  in gsc_init_one()
162 	intf->irq = -1;  in gsc_init_one()
163 	intf->id = intf_id;  in gsc_init_one()
166 	 * On the multi-tile setups the GSC is functional on the first tile only  in gsc_init_one()
168 	if (gsc_to_gt(gsc)->info.id != 0) {  in gsc_init_one()
169 		drm_dbg(&i915->drm, "Not initializing gsc for remote tiles\n");  in gsc_init_one()
181 		drm_warn_once(&i915->drm, "Unknown platform\n");  in gsc_init_one()
185 	if (!def->name) {  in gsc_init_one()
186 		drm_warn_once(&i915->drm, "HECI%d is not implemented!\n", intf_id + 1);  in gsc_init_one()
191 	if (def->use_polling)  in gsc_init_one()
194 	intf->irq = irq_alloc_desc(0);  in gsc_init_one()
195 	if (intf->irq < 0) {  in gsc_init_one()
196 		drm_err(&i915->drm, "gsc irq error %d\n", intf->irq);  in gsc_init_one()
200 	ret = gsc_irq_init(intf->irq);  in gsc_init_one()
202 		drm_err(&i915->drm, "gsc irq init failed %d\n", ret);  in gsc_init_one()
211 	if (def->lmem_size) {  in gsc_init_one()
212 		drm_dbg(&i915->drm, "setting up GSC lmem\n");  in gsc_init_one()
214 		if (gsc_ext_om_alloc(gsc, intf, def->lmem_size)) {  in gsc_init_one()
215 			drm_err(&i915->drm, "setting up gsc extended operational memory failed\n");  in gsc_init_one()
220 		adev->ext_op_mem.start = i915_gem_object_get_dma_address(intf->gem_obj, 0);  in gsc_init_one()
221 		adev->ext_op_mem.end = adev->ext_op_mem.start + def->lmem_size;  in gsc_init_one()
224 	adev->irq = intf->irq;  in gsc_init_one()
225 	adev->bar.parent = &pdev->resource[0];  in gsc_init_one()
226 	adev->bar.start = def->bar + pdev->resource[0].start;  in gsc_init_one()
227 	adev->bar.end = adev->bar.start + def->bar_size - 1;  in gsc_init_one()
228 	adev->bar.flags = IORESOURCE_MEM;  in gsc_init_one()
229 	adev->bar.desc = IORES_DESC_NONE;  in gsc_init_one()
230 	adev->slow_firmware = def->slow_firmware;  in gsc_init_one()
232 	aux_dev = &adev->aux_dev;  in gsc_init_one()
233 	aux_dev->name = def->name;  in gsc_init_one()
234 	aux_dev->id = (pci_domain_nr(pdev->bus) << 16) |  in gsc_init_one()
235 		      PCI_DEVID(pdev->bus->number, pdev->devfn);  in gsc_init_one()
236 	aux_dev->dev.parent = &pdev->dev;  in gsc_init_one()
237 	aux_dev->dev.release = gsc_release_dev;  in gsc_init_one()
241 		drm_err(&i915->drm, "gsc aux init failed %d\n", ret);  in gsc_init_one()
246 	intf->adev = adev; /* needed by the notifier */  in gsc_init_one()
249 		intel_huc_register_gsc_notifier(&gsc_to_gt(gsc)->uc.huc,  in gsc_init_one()
250 						aux_dev->dev.bus);  in gsc_init_one()
254 		drm_err(&i915->drm, "gsc aux add failed %d\n", ret);  in gsc_init_one()
256 			intel_huc_unregister_gsc_notifier(&gsc_to_gt(gsc)->uc.huc,  in gsc_init_one()
257 							  aux_dev->dev.bus);  in gsc_init_one()
258 		intf->adev = NULL;  in gsc_init_one()
267 	gsc_destroy_one(i915, gsc, intf->id);  in gsc_init_one()
279 	if (!HAS_HECI_GSC(gt->i915)) {  in gsc_irq_handler()
284 	if (gt->gsc.intf[intf_id].irq < 0)  in gsc_irq_handler()
287 	ret = generic_handle_irq(gt->gsc.intf[intf_id].irq);  in gsc_irq_handler()
316 	if (!HAS_HECI_GSC(gt->i915))  in intel_gsc_fini()
320 		gsc_destroy_one(gt->i915, gsc, i);  in intel_gsc_fini()