15 #include "ipa.h"
22  * DOC:  IPA Immediate Commands
24  * The AP command TX endpoint is used to issue immediate commands to the IPA.
25  * An immediate command is generally used to request the IPA do something
74 /* For IPA v4.0+, this opcode gets modified with pipeline clear options */
80 	__le16 flags;		/* Unused/reserved for IPA v3.5.1 */
84 	__le32 clear_options;	/* Unused/reserved for IPA v4.0+ */
88 /* The next field is present for IPA v4.0 and above */
90 /* The next field is present for IPA v3.5.1 only */
93 /* The next field and its values are present for IPA v3.5.1 only */
108 /* For IPA v4.0+, this opcode gets modified with pipeline clear options */
126 /* The next two fields are present for IPA v3.5.1 only. */
168 bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem,  in ipa_cmd_table_valid()  argument
171 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_table_valid()
177 	    ipa->mem_offset > offset_max - mem->offset) {  in ipa_cmd_table_valid()
182 			      ipa->mem_offset, mem->offset, offset_max);  in ipa_cmd_table_valid()
186 	if (mem->offset > ipa->mem_size ||  in ipa_cmd_table_valid()
187 	    mem->size > ipa->mem_size - mem->offset) {  in ipa_cmd_table_valid()
192 			      mem->offset, mem->size, ipa->mem_size);  in ipa_cmd_table_valid()
200 static bool ipa_cmd_header_valid(struct ipa *ipa)  in ipa_cmd_header_valid()  argument
202 	const struct ipa_mem *mem = &ipa->mem[IPA_MEM_MODEM_HEADER];  in ipa_cmd_header_valid()
203 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_header_valid()
210 	    ipa->mem_offset > offset_max - mem->offset) {  in ipa_cmd_header_valid()
213 			      ipa->mem_offset + mem->offset, offset_max);  in ipa_cmd_header_valid()
218 	size = ipa->mem[IPA_MEM_MODEM_HEADER].size;  in ipa_cmd_header_valid()
219 	size += ipa->mem[IPA_MEM_AP_HEADER].size;  in ipa_cmd_header_valid()
220 	if (mem->offset > ipa->mem_size || size > ipa->mem_size - mem->offset) {  in ipa_cmd_header_valid()
223 			      mem->offset, size, ipa->mem_size);  in ipa_cmd_header_valid()
231 static bool ipa_cmd_register_write_offset_valid(struct ipa *ipa,  in ipa_cmd_register_write_offset_valid()  argument
235 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_register_write_offset_valid()
240 	 * on the version of IPA.  IPA v3.5.1 supports a 16 bit offset, but  in ipa_cmd_register_write_offset_valid()
244 	if (ipa->version != IPA_VERSION_3_5_1)  in ipa_cmd_register_write_offset_valid()
249 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_register_write_offset_valid()
251 				ipa->mem_offset + offset, offset_max);  in ipa_cmd_register_write_offset_valid()
259 static bool ipa_cmd_register_write_valid(struct ipa *ipa)  in ipa_cmd_register_write_valid()  argument
264 	offset = ipa_reg_filt_rout_hash_flush_offset(ipa->version);  in ipa_cmd_register_write_valid()
266 	if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
271 	if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
277 bool ipa_cmd_data_valid(struct ipa *ipa)  in ipa_cmd_data_valid()  argument
279 	if (!ipa_cmd_header_valid(ipa))  in ipa_cmd_data_valid()
282 	if (!ipa_cmd_register_write_valid(ipa))  in ipa_cmd_data_valid()
329 ipa_cmd_payload_alloc(struct ipa *ipa, dma_addr_t *addr)  in ipa_cmd_payload_alloc()  argument
334 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_payload_alloc()
335 	trans_info = &ipa->gsi.channel[endpoint->channel_id].trans_info;  in ipa_cmd_payload_alloc()
346 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_table_init_add()  local
354 	offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
361 		hash_offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
368 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_table_init_add()
381 /* Initialize header space in IPA-local memory */
385 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_hdr_init_local_add()  local
393 	offset += ipa->mem_offset;  in ipa_cmd_hdr_init_local_add()
395 	/* With this command we tell the IPA where in its local memory the  in ipa_cmd_hdr_init_local_add()
397 	 * also written via DMA into that space.  The IPA hardware owns  in ipa_cmd_hdr_init_local_add()
400 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_hdr_init_local_add()
415 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_register_write_add()  local
427 	if (ipa->version != IPA_VERSION_3_5_1) {  in ipa_cmd_register_write_add()
452 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_register_write_add()
468 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_packet_init_add()  local
478 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_packet_init_add()
488 /* Use a DMA command to read or write a block of IPA-resident memory */
492 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_dma_shared_mem_add()  local
502 	/* assert(offset <= U16_MAX && ipa->mem_offset <= U16_MAX - offset); */  in ipa_cmd_dma_shared_mem_add()
504 	offset += ipa->mem_offset;  in ipa_cmd_dma_shared_mem_add()
506 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_dma_shared_mem_add()
509 	/* payload->clear_after_read was reserved prior to IPA v4.0.  It's  in ipa_cmd_dma_shared_mem_add()
515 	 *   direction:		0 = write to IPA, 1 read from IPA  in ipa_cmd_dma_shared_mem_add()
534 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_tag_status_add()  local
543 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_tag_status_add()
555 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_transfer_add()  local
564 	payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_transfer_add()
572 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_tag_process_add()  local
575 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];  in ipa_cmd_tag_process_add()
589 void ipa_cmd_tag_process(struct ipa *ipa)  in ipa_cmd_tag_process()  argument
594 	trans = ipa_cmd_trans_alloc(ipa, count);  in ipa_cmd_tag_process()
599 		dev_err(&ipa->pdev->dev,  in ipa_cmd_tag_process()
609 	channel = &endpoint->ipa->gsi.channel[endpoint->channel_id];  in ipa_cmd_info_alloc()
615 struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count)  in ipa_cmd_trans_alloc()  argument
620 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_trans_alloc()
622 	trans = gsi_channel_trans_alloc(&ipa->gsi, endpoint->channel_id,  in ipa_cmd_trans_alloc()