57  * interface (GSI) is an integral component of the IPA, providing a
59  * core.  The GSI implements a set of "channels" used for communication
62  * The IPA layer uses GSI channels to implement its "endpoints".  And while
63  * a GSI channel carries data between the AP and the IPA, a pair of IPA
70 /* The name of the GSI firmware file relative to /lib/firmware */
84  * enum ipa_firmware_loader: How GSI firmware gets loaded
87  * @IPA_LOADER_SELF:		AP loads GSI firmware
88  * @IPA_LOADER_MODEM:		Modem loads GSI firmware, signals when done
89  * @IPA_LOADER_SKIP:		Neither AP nor modem need to load GSI firmware
90  * @IPA_LOADER_INVALID:	GSI firmware loader specification is invalid
105  * the command TX endpoint.  If the modem is doing GSI firmware load
108  * called from ipa_probe() after GSI firmware has been successfully
118 	ret = gsi_setup(&ipa->gsi);  in ipa_setup()
168 	gsi_teardown(&ipa->gsi);  in ipa_setup()
192 	gsi_teardown(&ipa->gsi);  in ipa_teardown()
710 	/* GSI hardware design limits */  in ipa_validate_build()
735 	ret = of_property_read_string(dev->of_node, "qcom,gsi-loader", &str);  in ipa_firmware_loader()
752 	/* Modem loads GSI firmware for "modem" */  in ipa_firmware_loader()
756 	/* No GSI firmware load is needed for "skip" */  in ipa_firmware_loader()
784  *   - The "setup" stage uses IPA immediate commands, and so requires the GSI
787  * A Boolean Device Tree "modem-init" property determines whether GSI
789  * If the AP does GSI initialization, the setup phase is entered after
791  * the GSI layer and signals it has finished by sending an SMP2P interrupt
867 	ret = gsi_init(&ipa->gsi, pdev, ipa->version, data->endpoint_count,  in ipa_probe()
896 	/* If the modem is loading GSI firmware, it will trigger a call to  in ipa_probe()
903 		/* The AP is loading GSI firmware; do so now */  in ipa_probe()
909 	/* GSI firmware is loaded; proceed to setup */  in ipa_probe()
929 	gsi_exit(&ipa->gsi);  in ipa_probe()
995 	gsi_exit(&ipa->gsi);  in ipa_remove()