Lines Matching +full:ipa +full:- +full:ap +full:- +full:to +full:- +full:modem

1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2018-2022 Linaro Ltd.
31  * struct ipa - IPA information
33  * @version:		IPA hardware version
35  * @completion:		Used to signal pipeline clear transfer complete
39  * @power:		IPA power information
42  * @interrupt:		IPA Interrupt information
45  * @reg_addr:		DMA address used for IPA register access
46  * @reg_virt:		Virtual address used for IPA register access
47  * @regs:		IPA register definitions
48  * @mem_addr:		DMA address of IPA-local memory space
49  * @mem_virt:		Virtual address of IPA-local memory space
50  * @mem_offset:		Offset from @mem_virt used for access to IPA memory
53  * @mem:		Array of IPA-local memory region descriptors
54  * @imem_iova:		I/O virtual address of IPA region in IMEM
56  * @smem_iova:		I/O virtual address of IPA region in SMEM
58  * @zero_addr:		DMA address of preallocated zero-filled memory
59  * @zero_virt:		Virtual address of preallocated zero-filled memory
60  * @zero_size:		Size (bytes) of preallocated zero-filled memory
66  * @modem_tx_count:	Number of defined modem TX endoints
68  * @channel_map:	Mapping of GSI channel to IPA endpoint
69  * @name_map:		Mapping of IPA endpoint name to IPA endpoint
71  * @modem_state:	State of modem (stopped, running)
72  * @modem_netdev:	Network device structure used for modem
75 struct ipa {  struct
133  * ipa_setup() - Perform IPA setup
134  * @ipa:		IPA pointer  argument
136  * IPA initialization is broken into stages:  init; config; and setup.
140  * any access to IPA hardware.  Activities performed at the config stage
141  * require IPA power, because they involve access to IPA registers.
143  * (more on this below).  The setup stage allows the AP to perform
145  * a special interface to the IPA.
149  * In order for the GSI hardware to be functional it needs firmware to be
150  * loaded (in addition to some other low-level initialization).  This early
151  * GSI initialization can be done either by Trust Zone on the AP or by the
152  * modem.
154  * If it's done by Trust Zone, the AP loads the GSI firmware and supplies
155  * it to Trust Zone to verify and install.  When this completes, if
159  * If the modem performs early GSI initialization, the AP needs to know
161  * and receipt of that interrupt triggers the call to ipa_setup().
163 int ipa_setup(struct ipa *ipa);