net/ipa/ipa_mem.c

26 /* SMEM host id representing the modem. */
43  * ipa_mem_setup() - Set up IPA AP and modem shared memory areas
50  * This function performs the initial setup of this memory.  If the modem
53  * The AP informs the modem where its portions of memory are located
54  * in a QMI exchange that occurs at modem startup.
66 	 * the processing context and modem memory regions.  in ipa_mem_setup()
74 	/* Initialize IPA-local header memory.  The modem and AP header  in ipa_mem_setup()
111 	/* Other than modem memory, sizes must be a multiple of 8 */  in ipa_mem_valid()
242  * ipa_mem_zero_modem() - Zero IPA-local memory regions owned by the modem
245  * Zero regions of IPA-local memory used by the modem.  These are configured
246  * (and initially zeroed) by ipa_mem_setup(), but if the modem crashes and
248  * modem where to find regions of IPA local memory it needs to know about
255 	/* Get a transaction to zero the modem memory, modem header,  in ipa_mem_zero_modem()
256 	 * and modem processing context regions.  in ipa_mem_zero_modem()
261 			"no transaction to zero modem memory\n");  in ipa_mem_zero_modem()
284  * modem accesses this memory directly, but the IPA accesses it
358  * The modem accesses SMEM memory directly, but the IPA accesses it
381 	 * (in this case, the modem).  An allocation from SMEM is persistent  in ipa_smem_init()