59  * interface (GSI) is an integral component of the IPA, providing a
61  * core.  The GSI implements a set of "channels" used for communication
64  * The IPA layer uses GSI channels to implement its "endpoints".  And while
65  * a GSI channel carries data between the AP and the IPA, a pair of IPA
72 /* The name of the GSI firmware file relative to /lib/firmware */
86  * enum ipa_firmware_loader: How GSI firmware gets loaded
89  * @IPA_LOADER_SELF:		AP loads GSI firmware
90  * @IPA_LOADER_MODEM:		Modem loads GSI firmware, signals when done
91  * @IPA_LOADER_SKIP:		Neither AP nor modem need to load GSI firmware
92  * @IPA_LOADER_INVALID:	GSI firmware loader specification is invalid
107  * the command TX endpoint.  If the modem is doing GSI firmware load
110  * called from ipa_probe() after GSI firmware has been successfully
120 	ret = gsi_setup(&ipa->gsi);  in ipa_setup()
176 	gsi_teardown(&ipa->gsi);  in ipa_setup()
201 	gsi_teardown(&ipa->gsi);  in ipa_teardown()
724 	/* GSI hardware design limits */  in ipa_validate_build()
749 	ret = of_property_read_string(dev->of_node, "qcom,gsi-loader", &str);  in ipa_firmware_loader()
766 	/* Modem loads GSI firmware for "modem" */  in ipa_firmware_loader()
770 	/* No GSI firmware load is needed for "skip" */  in ipa_firmware_loader()
798  *   - The "setup" stage uses IPA immediate commands, and so requires the GSI
801  * A Boolean Device Tree "modem-init" property determines whether GSI
803  * If the AP does GSI initialization, the setup phase is entered after
805  * the GSI layer and signals it has finished by sending an SMP2P interrupt
871 	ret = gsi_init(&ipa->gsi, pdev, ipa->version, data->endpoint_count,  in ipa_probe()
900 	/* If the modem is loading GSI firmware, it will trigger a call to  in ipa_probe()
907 		/* The AP is loading GSI firmware; do so now */  in ipa_probe()
913 	/* GSI firmware is loaded; proceed to setup */  in ipa_probe()
933 	gsi_exit(&ipa->gsi);  in ipa_probe()
989 	gsi_exit(&ipa->gsi);  in ipa_remove()