i915/display/intel_opregion.c

131 	u64 rvda;	/* Physical (2.0) or relative from opregion (2.1+)
273 	struct intel_opregion *opregion = i915->display.opregion;
277 	if (!opregion)
280 	swsci = opregion->swsci;
291 		if ((opregion->swsci_sbcb_sub_functions &
295 		if ((opregion->swsci_gbda_sub_functions &
316 	swsci = dev_priv->display.opregion->swsci;
490 	struct opregion_asle *asle = dev_priv->display.opregion->asle;
496 			    "opregion backlight request ignored\n");
513 	drm_dbg_kms(&dev_priv->drm, "updating opregion backlight %d/255\n",
610 	struct intel_opregion *opregion =
612 	struct drm_i915_private *dev_priv = opregion->i915;
613 	struct opregion_asle *asle = opregion->asle;
661 	return i915->display.opregion && i915->display.opregion->asle;
666 	struct intel_opregion *opregion = i915->display.opregion;
668 	if (opregion && opregion->asle)
669 		queue_work(i915->unordered_wq, &opregion->asle_work);
677  * The only video events relevant to opregion are 0x80. These indicate either a
684 	struct intel_opregion *opregion = container_of(nb, struct intel_opregion,
693 	acpi = opregion->acpi;
704  * Initialise the DIDL field in opregion. This passes a list of devices to
709 static void set_did(struct intel_opregion *opregion, int i, u32 val)
711 	if (i < ARRAY_SIZE(opregion->acpi->didl)) {
712 		opregion->acpi->didl[i] = val;
714 		i -= ARRAY_SIZE(opregion->acpi->didl);
716 		if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2)))
719 		opregion->acpi->did2[i] = val;
725 	struct intel_opregion *opregion = dev_priv->display.opregion;
731 	 * In theory, did2, the extended didl, gets added at opregion version
737 	max_outputs = ARRAY_SIZE(opregion->acpi->didl) +
738 		ARRAY_SIZE(opregion->acpi->did2);
745 			set_did(opregion, i, connector->acpi_device_id);
759 		set_did(opregion, i, 0);
764 	struct intel_opregion *opregion = dev_priv->display.opregion;
781 		if (i >= ARRAY_SIZE(opregion->acpi->cadl))
783 		opregion->acpi->cadl[i++] = connector->acpi_device_id;
788 	if (i < ARRAY_SIZE(opregion->acpi->cadl))
789 		opregion->acpi->cadl[i] = 0;
794 	struct intel_opregion *opregion = dev_priv->display.opregion;
799 	opregion->swsci_gbda_sub_functions = 1;
800 	opregion->swsci_sbcb_sub_functions = 1;
806 		opregion->swsci_gbda_sub_functions |= tmp;
816 		opregion->swsci_sbcb_sub_functions |= tmp;
833 			u32 req = opregion->swsci_sbcb_sub_functions;
839 			/* opregion->swsci_sbcb_sub_functions &= tmp; */
841 			opregion->swsci_sbcb_sub_functions |= tmp;
847 		opregion->swsci_gbda_sub_functions,
848 		opregion->swsci_sbcb_sub_functions);
872 	struct intel_opregion *opregion;
888 	drm_dbg(&dev_priv->drm, "graphic opregion physical addr: 0x%x\n",
895 	opregion = kzalloc(sizeof(*opregion), GFP_KERNEL);
896 	if (!opregion)
899 	opregion->i915 = dev_priv;
900 	dev_priv->display.opregion = opregion;
902 	INIT_WORK(&opregion->asle_work, asle_work);
913 		drm_dbg(&dev_priv->drm, "opregion signature mismatch\n");
917 	opregion->header = base;
920 		opregion->header->over.major,
921 		opregion->header->over.minor,
922 		opregion->header->over.revision);
924 	mboxes = opregion->header->mboxes;
927 		opregion->acpi = base + OPREGION_ACPI_OFFSET;
934 		opregion->acpi->chpd = 1;
938 		u8 major = opregion->header->over.major;
941 			drm_err(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v3.x, ignoring\n");
944 				drm_dbg(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v2.x\n");
946 			opregion->swsci = base + OPREGION_SWSCI_OFFSET;
953 		opregion->asle = base + OPREGION_ASLE_OFFSET;
955 		opregion->asle->ardy = ASLE_ARDY_NOT_READY;
960 		opregion->asle_ext = base + OPREGION_ASLE_EXT_OFFSET;
970 	if (opregion->header->over.major >= 2 && opregion->asle &&
971 	    opregion->asle->rvda && opregion->asle->rvds) {
972 		resource_size_t rvda = opregion->asle->rvda;
975 		 * opregion 2.0: rvda is the physical VBT address.
977 		 * opregion 2.1+: rvda is unsigned, relative offset from
978 		 * opregion base, and should never point within opregion.
980 		if (opregion->header->over.major > 2 ||
981 		    opregion->header->over.minor >= 1) {
987 		opregion->rvda = memremap(rvda, opregion->asle->rvds,
990 		vbt = opregion->rvda;
991 		vbt_size = opregion->asle->rvds;
995 			opregion->vbt = vbt;
996 			opregion->vbt_size = vbt_size;
1001 			memunmap(opregion->rvda);
1002 			opregion->rvda = NULL;
1020 		opregion->vbt = vbt;
1021 		opregion->vbt_size = vbt_size;
1033 	kfree(opregion);
1034 	dev_priv->display.opregion = NULL;
1108 	struct intel_opregion *opregion = i915->display.opregion;
1113 	if (!opregion || !opregion->asle_ext)
1116 	edid = opregion->asle_ext->bddc;
1119 	len = (opregion->asle_ext->phed & ASLE_PHED_EDID_VALID_MASK) * 128;
1136 	struct intel_opregion *opregion = i915->display.opregion;
1138 	if (!opregion || !opregion->vbt)
1146 	struct intel_opregion *opregion = i915->display.opregion;
1148 	if (!opregion || !opregion->vbt)
1152 		*size = opregion->vbt_size;
1154 	return kmemdup(opregion->vbt, opregion->vbt_size, GFP_KERNEL);
1159 	struct intel_opregion *opregion = i915->display.opregion;
1162 	if (!opregion)
1165 	header = opregion->header;
1171 	return opregion->header->pcon & PCON_HEADLESS_SKU;
1176 	struct intel_opregion *opregion = i915->display.opregion;
1178 	if (!opregion)
1181 	if (opregion->acpi) {
1182 		opregion->acpi_notifier.notifier_call =
1184 		register_acpi_notifier(&opregion->acpi_notifier);
1192 	struct intel_opregion *opregion = i915->display.opregion;
1194 	if (opregion->acpi) {
1203 		opregion->acpi->csts = 0;
1204 		opregion->acpi->drdy = 1;
1207 	if (opregion->asle) {
1208 		opregion->asle->tche = ASLE_TCHE_BLC_EN;
1209 		opregion->asle->ardy = ASLE_ARDY_READY;
1218 	struct intel_opregion *opregion = i915->display.opregion;
1220 	if (!opregion)
1231 	struct intel_opregion *opregion = i915->display.opregion;
1233 	if (opregion->asle)
1234 		opregion->asle->ardy = ASLE_ARDY_NOT_READY;
1236 	cancel_work_sync(&opregion->asle_work);
1238 	if (opregion->acpi)
1239 		opregion->acpi->drdy = 0;
1244 	struct intel_opregion *opregion = i915->display.opregion;
1246 	if (!opregion)
1257 	struct intel_opregion *opregion = i915->display.opregion;
1261 	if (!opregion)
1264 	if (opregion->acpi_notifier.notifier_call) {
1265 		unregister_acpi_notifier(&opregion->acpi_notifier);
1266 		opregion->acpi_notifier.notifier_call = NULL;
1272 	struct intel_opregion *opregion = i915->display.opregion;
1274 	if (!opregion)
1277 	memunmap(opregion->header);
1278 	if (opregion->rvda)
1279 		memunmap(opregion->rvda);
1280 	kfree(opregion);
1281 	i915->display.opregion = NULL;
1287 	struct intel_opregion *opregion = i915->display.opregion;
1289 	if (opregion)
1290 		seq_write(m, opregion->header, OPREGION_SIZE);