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
73 /* For IPA v4.0+, the pipeline clear options are encoded in the opcode */
78 	__le16 flags;		/* Unused/reserved prior to IPA v4.0 */
82 	__le32 clear_options;	/* Unused/reserved for IPA v4.0+ */
86 /* The next field is present for IPA v4.0+ */
88 /* The next field is not present for IPA v4.0+ */
91 /* The next field and its values are not present for IPA v4.0+ */
97 	u8 dest_endpoint;	/* Full 8 bits used for IPA v5.0+ */
106 /* For IPA v4.0+, this opcode gets modified with pipeline clear options */
124 /* The next two fields are not present for IPA v4.0+ */
160 	/* Prior to IPA v5.0, we supported no more than 32 endpoints,  in ipa_cmd_validate_build()
162 	 * endpoint numbers.  Starting with IPA v5.0, the widths of  in ipa_cmd_validate_build()
171 bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,  in ipa_cmd_table_init_valid()  argument
177 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_table_init_valid()
180 	size = route ? ipa->route_count : ipa->filter_count + 1;  in ipa_cmd_table_init_valid()
193 	    ipa->mem_offset > offset_max - mem->offset) {  in ipa_cmd_table_init_valid()
196 			ipa->mem_offset, mem->offset, offset_max);  in ipa_cmd_table_init_valid()
205 static bool ipa_cmd_header_init_local_valid(struct ipa *ipa)  in ipa_cmd_header_init_local_valid()  argument
207 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_header_init_local_valid()
217 	 * that the entire range is within the overall IPA memory range.  in ipa_cmd_header_init_local_valid()
225 	mem = ipa_mem_find(ipa, IPA_MEM_MODEM_HEADER);  in ipa_cmd_header_init_local_valid()
229 	/* Make sure the offset fits in the IPA command */  in ipa_cmd_header_init_local_valid()
230 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_header_init_local_valid()
233 			ipa->mem_offset, offset, offset_max);  in ipa_cmd_header_init_local_valid()
239 	mem = ipa_mem_find(ipa, IPA_MEM_AP_HEADER);  in ipa_cmd_header_init_local_valid()
243 	/* Make sure the combined size fits in the IPA command */  in ipa_cmd_header_init_local_valid()
255 static bool ipa_cmd_register_write_offset_valid(struct ipa *ipa,  in ipa_cmd_register_write_offset_valid()  argument
259 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_register_write_offset_valid()
264 	 * on the version of IPA.  A 16 bit offset is always supported,  in ipa_cmd_register_write_offset_valid()
265 	 * but starting with IPA v4.0 some additional high-order bits are  in ipa_cmd_register_write_offset_valid()
269 	if (ipa->version >= IPA_VERSION_4_0)  in ipa_cmd_register_write_offset_valid()
276 	 * the overall IPA memory range.  in ipa_cmd_register_write_offset_valid()
278 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_register_write_offset_valid()
280 			name, ipa->mem_offset, offset, offset_max);  in ipa_cmd_register_write_offset_valid()
288 static bool ipa_cmd_register_write_valid(struct ipa *ipa)  in ipa_cmd_register_write_valid()  argument
295 	 * offset will fit in a register write IPA immediate command.  in ipa_cmd_register_write_valid()
297 	if (ipa_table_hash_support(ipa)) {  in ipa_cmd_register_write_valid()
298 		if (ipa->version < IPA_VERSION_5_0)  in ipa_cmd_register_write_valid()
299 			reg = ipa_reg(ipa, FILT_ROUT_HASH_FLUSH);  in ipa_cmd_register_write_valid()
301 			reg = ipa_reg(ipa, FILT_ROUT_CACHE_FLUSH);  in ipa_cmd_register_write_valid()
305 		if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
312 	 * using a register write IPA immediate command.  Make sure the  in ipa_cmd_register_write_valid()
316 	reg = ipa_reg(ipa, ENDP_STATUS);  in ipa_cmd_register_write_valid()
319 	if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
348 ipa_cmd_payload_alloc(struct ipa *ipa, dma_addr_t *addr)  in ipa_cmd_payload_alloc()  argument
353 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_payload_alloc()
354 	trans_info = &ipa->gsi.channel[endpoint->channel_id].trans_info;  in ipa_cmd_payload_alloc()
365 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_table_init_add()  local
372 	offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
379 		hash_offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
386 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_table_init_add()
399 /* Initialize header space in IPA-local memory */
403 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_hdr_init_local_add()  local
410 	offset += ipa->mem_offset;  in ipa_cmd_hdr_init_local_add()
412 	/* With this command we tell the IPA where in its local memory the  in ipa_cmd_hdr_init_local_add()
414 	 * also written via DMA into that space.  The IPA hardware owns  in ipa_cmd_hdr_init_local_add()
417 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_hdr_init_local_add()
432 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_register_write_add()  local
444 	/* IPA v4.0+ represents the pipeline clear options in the opcode.  It  in ipa_cmd_register_write_add()
448 	if (ipa->version >= IPA_VERSION_4_0) {  in ipa_cmd_register_write_add()
473 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_register_write_add()
489 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_packet_init_add()  local
495 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_packet_init_add()
498 	if (ipa->version < IPA_VERSION_5_0) {  in ipa_cmd_ip_packet_init_add()
510 /* Use a DMA command to read or write a block of IPA-resident memory */
514 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_dma_shared_mem_add()  local
524 	WARN_ON(offset > U16_MAX || ipa->mem_offset > U16_MAX - offset);  in ipa_cmd_dma_shared_mem_add()
526 	offset += ipa->mem_offset;  in ipa_cmd_dma_shared_mem_add()
528 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_dma_shared_mem_add()
531 	/* payload->clear_after_read was reserved prior to IPA v4.0.  It's  in ipa_cmd_dma_shared_mem_add()
537 	 *   direction:		0 = write to IPA, 1 read from IPA  in ipa_cmd_dma_shared_mem_add()
554 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_tag_status_add()  local
560 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_tag_status_add()
572 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_transfer_add()  local
578 	payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_transfer_add()
587 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_pipeline_clear_add()  local
591 	reinit_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_add()
596 	/* Send a data packet through the IPA pipeline.  The packet_init  in ipa_cmd_pipeline_clear_add()
598 	 * endpoint without any other IPA processing.  The tag_status  in ipa_cmd_pipeline_clear_add()
604 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];  in ipa_cmd_pipeline_clear_add()
616 void ipa_cmd_pipeline_clear_wait(struct ipa *ipa)  in ipa_cmd_pipeline_clear_wait()  argument
618 	wait_for_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_wait()
622 struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count)  in ipa_cmd_trans_alloc()  argument
629 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_trans_alloc()
631 	return gsi_channel_trans_alloc(&ipa->gsi, endpoint->channel_id,  in ipa_cmd_trans_alloc()
636 int ipa_cmd_init(struct ipa *ipa)  in ipa_cmd_init()  argument
640 	if (!ipa_cmd_header_init_local_valid(ipa))  in ipa_cmd_init()
643 	if (!ipa_cmd_register_write_valid(ipa))  in ipa_cmd_init()