15 #include "ipa.h"
23  * DOC:  IPA Immediate Commands
25  * The AP command TX endpoint is used to issue immediate commands to the IPA.
26  * An immediate command is generally used to request the IPA do something
74 /* For IPA v4.0+, the pipeline clear options are encoded in the opcode */
79 	__le16 flags;		/* Unused/reserved prior to IPA v4.0 */
83 	__le32 clear_options;	/* Unused/reserved for IPA v4.0+ */
87 /* The next field is present for IPA v4.0+ */
89 /* The next field is not present for IPA v4.0+ */
92 /* The next field and its values are not present for IPA v4.0+ */
98 	u8 dest_endpoint;	/* Full 8 bits used for IPA v5.0+ */
107 /* For IPA v4.0+, this opcode gets modified with pipeline clear options */
125 /* The next two fields are not present for IPA v4.0+ */
161 	/* Prior to IPA v5.0, we supported no more than 32 endpoints,  in ipa_cmd_validate_build()
163 	 * endpoint numbers.  Starting with IPA v5.0, the widths of  in ipa_cmd_validate_build()
172 bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,  in ipa_cmd_table_init_valid()  argument
178 	struct device *dev = ipa->dev;  in ipa_cmd_table_init_valid()
181 	size = route ? ipa->route_count : ipa->filter_count + 1;  in ipa_cmd_table_init_valid()
194 	    ipa->mem_offset > offset_max - mem->offset) {  in ipa_cmd_table_init_valid()
197 			ipa->mem_offset, mem->offset, offset_max);  in ipa_cmd_table_init_valid()
206 static bool ipa_cmd_header_init_local_valid(struct ipa *ipa)  in ipa_cmd_header_init_local_valid()  argument
208 	struct device *dev = ipa->dev;  in ipa_cmd_header_init_local_valid()
218 	 * that the entire range is within the overall IPA memory range.  in ipa_cmd_header_init_local_valid()
226 	mem = ipa_mem_find(ipa, IPA_MEM_MODEM_HEADER);  in ipa_cmd_header_init_local_valid()
230 	/* Make sure the offset fits in the IPA command */  in ipa_cmd_header_init_local_valid()
231 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_header_init_local_valid()
234 			ipa->mem_offset, offset, offset_max);  in ipa_cmd_header_init_local_valid()
240 	mem = ipa_mem_find(ipa, IPA_MEM_AP_HEADER);  in ipa_cmd_header_init_local_valid()
244 	/* Make sure the combined size fits in the IPA command */  in ipa_cmd_header_init_local_valid()
256 static bool ipa_cmd_register_write_offset_valid(struct ipa *ipa,  in ipa_cmd_register_write_offset_valid()  argument
260 	struct device *dev = ipa->dev;  in ipa_cmd_register_write_offset_valid()
265 	 * on the version of IPA.  A 16 bit offset is always supported,  in ipa_cmd_register_write_offset_valid()
266 	 * but starting with IPA v4.0 some additional high-order bits are  in ipa_cmd_register_write_offset_valid()
270 	if (ipa->version >= IPA_VERSION_4_0)  in ipa_cmd_register_write_offset_valid()
277 	 * the overall IPA memory range.  in ipa_cmd_register_write_offset_valid()
279 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_register_write_offset_valid()
281 			name, ipa->mem_offset, offset, offset_max);  in ipa_cmd_register_write_offset_valid()
289 static bool ipa_cmd_register_write_valid(struct ipa *ipa)  in ipa_cmd_register_write_valid()  argument
296 	 * offset will fit in a register write IPA immediate command.  in ipa_cmd_register_write_valid()
298 	if (ipa_table_hash_support(ipa)) {  in ipa_cmd_register_write_valid()
299 		if (ipa->version < IPA_VERSION_5_0)  in ipa_cmd_register_write_valid()
300 			reg = ipa_reg(ipa, FILT_ROUT_HASH_FLUSH);  in ipa_cmd_register_write_valid()
302 			reg = ipa_reg(ipa, FILT_ROUT_CACHE_FLUSH);  in ipa_cmd_register_write_valid()
306 		if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
313 	 * using a register write IPA immediate command.  Make sure the  in ipa_cmd_register_write_valid()
317 	reg = ipa_reg(ipa, ENDP_STATUS);  in ipa_cmd_register_write_valid()
320 	if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
349 ipa_cmd_payload_alloc(struct ipa *ipa, dma_addr_t *addr)  in ipa_cmd_payload_alloc()  argument
354 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_payload_alloc()
355 	trans_info = &ipa->gsi.channel[endpoint->channel_id].trans_info;  in ipa_cmd_payload_alloc()
366 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_table_init_add()  local
373 	offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
380 		hash_offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
387 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_table_init_add()
400 /* Initialize header space in IPA-local memory */
404 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_hdr_init_local_add()  local
411 	offset += ipa->mem_offset;  in ipa_cmd_hdr_init_local_add()
413 	/* With this command we tell the IPA where in its local memory the  in ipa_cmd_hdr_init_local_add()
415 	 * also written via DMA into that space.  The IPA hardware owns  in ipa_cmd_hdr_init_local_add()
418 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_hdr_init_local_add()
433 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_register_write_add()  local
445 	/* IPA v4.0+ represents the pipeline clear options in the opcode.  It  in ipa_cmd_register_write_add()
449 	if (ipa->version >= IPA_VERSION_4_0) {  in ipa_cmd_register_write_add()
474 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_register_write_add()
490 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_packet_init_add()  local
496 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_packet_init_add()
499 	if (ipa->version < IPA_VERSION_5_0) {  in ipa_cmd_ip_packet_init_add()
511 /* Use a DMA command to read or write a block of IPA-resident memory */
515 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_dma_shared_mem_add()  local
525 	WARN_ON(offset > U16_MAX || ipa->mem_offset > U16_MAX - offset);  in ipa_cmd_dma_shared_mem_add()
527 	offset += ipa->mem_offset;  in ipa_cmd_dma_shared_mem_add()
529 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_dma_shared_mem_add()
532 	/* payload->clear_after_read was reserved prior to IPA v4.0.  It's  in ipa_cmd_dma_shared_mem_add()
538 	 *   direction:		0 = write to IPA, 1 read from IPA  in ipa_cmd_dma_shared_mem_add()
555 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_tag_status_add()  local
561 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_tag_status_add()
573 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_transfer_add()  local
579 	payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_transfer_add()
588 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_pipeline_clear_add()  local
592 	reinit_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_add()
597 	/* Send a data packet through the IPA pipeline.  The packet_init  in ipa_cmd_pipeline_clear_add()
599 	 * endpoint without any other IPA processing.  The tag_status  in ipa_cmd_pipeline_clear_add()
605 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];  in ipa_cmd_pipeline_clear_add()
617 void ipa_cmd_pipeline_clear_wait(struct ipa *ipa)  in ipa_cmd_pipeline_clear_wait()  argument
619 	wait_for_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_wait()
623 struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count)  in ipa_cmd_trans_alloc()  argument
630 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_trans_alloc()
632 	return gsi_channel_trans_alloc(&ipa->gsi, endpoint->channel_id,  in ipa_cmd_trans_alloc()
637 int ipa_cmd_init(struct ipa *ipa)  in ipa_cmd_init()  argument
641 	if (!ipa_cmd_header_init_local_valid(ipa))  in ipa_cmd_init()
644 	if (!ipa_cmd_register_write_valid(ipa))  in ipa_cmd_init()