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+, 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+ */
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+ */
175 bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem, bool route)  in ipa_cmd_table_valid()  argument
180 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_table_valid()
193 	    ipa->mem_offset > offset_max - mem->offset) {  in ipa_cmd_table_valid()
196 			ipa->mem_offset, mem->offset, offset_max);  in ipa_cmd_table_valid()
201 	/* Entire memory range must fit within IPA-local memory */  in ipa_cmd_table_valid()
202 	if (mem->offset > ipa->mem_size ||  in ipa_cmd_table_valid()
203 	    mem->size > ipa->mem_size - mem->offset) {  in ipa_cmd_table_valid()
206 			mem->offset, mem->size, ipa->mem_size);  in ipa_cmd_table_valid()
215 static bool ipa_cmd_header_valid(struct ipa *ipa)  in ipa_cmd_header_valid()  argument
217 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_header_valid()
227 	 * that the entire range is within the overall IPA memory range.  in ipa_cmd_header_valid()
235 	mem = ipa_mem_find(ipa, IPA_MEM_MODEM_HEADER);  in ipa_cmd_header_valid()
239 	/* Make sure the offset fits in the IPA command */  in ipa_cmd_header_valid()
240 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_header_valid()
243 			ipa->mem_offset, offset, offset_max);  in ipa_cmd_header_valid()
249 	mem = ipa_mem_find(ipa, IPA_MEM_AP_HEADER);  in ipa_cmd_header_valid()
253 	/* Make sure the combined size fits in the IPA command */  in ipa_cmd_header_valid()
261 	/* Make sure the entire combined area fits in IPA memory */  in ipa_cmd_header_valid()
262 	if (size > ipa->mem_size || offset > ipa->mem_size - size) {  in ipa_cmd_header_valid()
265 			offset, size, ipa->mem_size);  in ipa_cmd_header_valid()
274 static bool ipa_cmd_register_write_offset_valid(struct ipa *ipa,  in ipa_cmd_register_write_offset_valid()  argument
278 	struct device *dev = &ipa->pdev->dev;  in ipa_cmd_register_write_offset_valid()
283 	 * on the version of IPA.  A 16 bit offset is always supported,  in ipa_cmd_register_write_offset_valid()
284 	 * but starting with IPA v4.0 some additional high-order bits are  in ipa_cmd_register_write_offset_valid()
288 	if (ipa->version >= IPA_VERSION_4_0)  in ipa_cmd_register_write_offset_valid()
295 	 * the overall IPA memory range.  in ipa_cmd_register_write_offset_valid()
297 	if (offset > offset_max || ipa->mem_offset > offset_max - offset) {  in ipa_cmd_register_write_offset_valid()
299 			name, ipa->mem_offset, offset, offset_max);  in ipa_cmd_register_write_offset_valid()
307 static bool ipa_cmd_register_write_valid(struct ipa *ipa)  in ipa_cmd_register_write_valid()  argument
313 	 * offset will fit in a register write IPA immediate command.  in ipa_cmd_register_write_valid()
315 	if (ipa_table_hash_support(ipa)) {  in ipa_cmd_register_write_valid()
316 		offset = ipa_reg_filt_rout_hash_flush_offset(ipa->version);  in ipa_cmd_register_write_valid()
318 		if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
325 	 * using a register write IPA immediate command.  Make sure the  in ipa_cmd_register_write_valid()
331 	if (!ipa_cmd_register_write_offset_valid(ipa, name, offset))  in ipa_cmd_register_write_valid()
337 bool ipa_cmd_data_valid(struct ipa *ipa)  in ipa_cmd_data_valid()  argument
339 	if (!ipa_cmd_header_valid(ipa))  in ipa_cmd_data_valid()
342 	if (!ipa_cmd_register_write_valid(ipa))  in ipa_cmd_data_valid()
388 ipa_cmd_payload_alloc(struct ipa *ipa, dma_addr_t *addr)  in ipa_cmd_payload_alloc()  argument
393 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_payload_alloc()
394 	trans_info = &ipa->gsi.channel[endpoint->channel_id].trans_info;  in ipa_cmd_payload_alloc()
405 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_table_init_add()  local
413 	offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
420 		hash_offset += ipa->mem_offset;  in ipa_cmd_table_init_add()
427 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_table_init_add()
440 /* Initialize header space in IPA-local memory */
444 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_hdr_init_local_add()  local
452 	offset += ipa->mem_offset;  in ipa_cmd_hdr_init_local_add()
454 	/* With this command we tell the IPA where in its local memory the  in ipa_cmd_hdr_init_local_add()
456 	 * also written via DMA into that space.  The IPA hardware owns  in ipa_cmd_hdr_init_local_add()
459 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_hdr_init_local_add()
474 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_register_write_add()  local
486 	/* IPA v4.0+ represents the pipeline clear options in the opcode.  It  in ipa_cmd_register_write_add()
490 	if (ipa->version >= IPA_VERSION_4_0) {  in ipa_cmd_register_write_add()
515 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_register_write_add()
531 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_packet_init_add()  local
538 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_packet_init_add()
548 /* Use a DMA command to read or write a block of IPA-resident memory */
552 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_dma_shared_mem_add()  local
563 	WARN_ON(offset > U16_MAX || ipa->mem_offset > U16_MAX - offset);  in ipa_cmd_dma_shared_mem_add()
565 	offset += ipa->mem_offset;  in ipa_cmd_dma_shared_mem_add()
567 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_dma_shared_mem_add()
570 	/* payload->clear_after_read was reserved prior to IPA v4.0.  It's  in ipa_cmd_dma_shared_mem_add()
576 	 *   direction:		0 = write to IPA, 1 read from IPA  in ipa_cmd_dma_shared_mem_add()
595 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_ip_tag_status_add()  local
602 	cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_ip_tag_status_add()
614 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_transfer_add()  local
621 	payload = ipa_cmd_payload_alloc(ipa, &payload_addr);  in ipa_cmd_transfer_add()
630 	struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);  in ipa_cmd_pipeline_clear_add()  local
634 	reinit_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_add()
639 	/* Send a data packet through the IPA pipeline.  The packet_init  in ipa_cmd_pipeline_clear_add()
641 	 * endpoint without any other IPA processing.  The tag_status  in ipa_cmd_pipeline_clear_add()
647 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];  in ipa_cmd_pipeline_clear_add()
659 void ipa_cmd_pipeline_clear_wait(struct ipa *ipa)  in ipa_cmd_pipeline_clear_wait()  argument
661 	wait_for_completion(&ipa->completion);  in ipa_cmd_pipeline_clear_wait()
664 void ipa_cmd_pipeline_clear(struct ipa *ipa)  in ipa_cmd_pipeline_clear()  argument
669 	trans = ipa_cmd_trans_alloc(ipa, count);  in ipa_cmd_pipeline_clear()
673 		ipa_cmd_pipeline_clear_wait(ipa);  in ipa_cmd_pipeline_clear()
675 		dev_err(&ipa->pdev->dev,  in ipa_cmd_pipeline_clear()
685 	channel = &endpoint->ipa->gsi.channel[endpoint->channel_id];  in ipa_cmd_info_alloc()
691 struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count)  in ipa_cmd_trans_alloc()  argument
696 	endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];  in ipa_cmd_trans_alloc()
698 	trans = gsi_channel_trans_alloc(&ipa->gsi, endpoint->channel_id,  in ipa_cmd_trans_alloc()