33 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_update_data_size()  local
37 			  sdb->buf_hw_base;  in smb_update_data_size()
40 	if (buf_wrptr == sdb->buf_rdptr && smb_buffer_not_empty(drvdata)) {  in smb_update_data_size()
41 		sdb->data_size = sdb->buf_size;  in smb_update_data_size()
46 	sdb->data_size = CIRC_CNT(buf_wrptr, sdb->buf_rdptr,  in smb_update_data_size()
47 				  sdb->buf_size);  in smb_update_data_size()
57 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_update_read_ptr()  local
59 	sdb->buf_rdptr += nbytes;  in smb_update_read_ptr()
60 	sdb->buf_rdptr %= sdb->buf_size;  in smb_update_read_ptr()
61 	writel(sdb->buf_hw_base + sdb->buf_rdptr,  in smb_update_read_ptr()
64 	sdb->data_size -= nbytes;  in smb_update_read_ptr()
69 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_reset_buffer()  local
85 	if (!write_ptr || write_ptr == sdb->buf_rdptr + sdb->buf_hw_base)  in smb_reset_buffer()
93 	sdb->buf_rdptr = write_ptr - sdb->buf_hw_base;  in smb_reset_buffer()
128 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_read()  local
135 	if (!sdb->data_size)  in smb_read()
138 	to_copy = min(sdb->data_size, len);  in smb_read()
141 	if (sdb->buf_rdptr + to_copy > sdb->buf_size)  in smb_read()
142 		to_copy = sdb->buf_size - sdb->buf_rdptr;  in smb_read()
144 	if (copy_to_user(data, sdb->buf_base + sdb->buf_rdptr, to_copy)) {  in smb_read()
151 	if (!sdb->data_size)  in smb_read()
183 	return sysfs_emit(buf, "0x%lx\n", drvdata->sdb.buf_size);  in buf_size_show()
359 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_sync_perf_buffer()  local
367 	while (sdb->data_size) {  in smb_sync_perf_buffer()
370 		to_copy = min(sdb->data_size, pg_space);  in smb_sync_perf_buffer()
373 		if (sdb->buf_rdptr + to_copy > sdb->buf_size)  in smb_sync_perf_buffer()
374 			to_copy = sdb->buf_size - sdb->buf_rdptr;  in smb_sync_perf_buffer()
377 			      sdb->buf_base + sdb->buf_rdptr, to_copy);  in smb_sync_perf_buffer()
396 	struct smb_data_buffer *sdb = &drvdata->sdb;  in smb_update_buffer()  local
418 	if (sdb->data_size > handle->size) {  in smb_update_buffer()
419 		smb_update_read_ptr(drvdata, sdb->data_size - handle->size);  in smb_update_buffer()
423 	data_size = sdb->data_size;  in smb_update_buffer()
446 				struct smb_data_buffer *sdb)  in smb_init_data_buffer()  argument
457 	sdb->buf_rdptr = 0;  in smb_init_data_buffer()
458 	sdb->buf_hw_base = FIELD_GET(SMB_BUF_ADDR_LO_MSK, res->start);  in smb_init_data_buffer()
459 	sdb->buf_size = resource_size(res);  in smb_init_data_buffer()
460 	if (sdb->buf_size == 0)  in smb_init_data_buffer()
467 	base = devm_memremap(&pdev->dev, sdb->buf_hw_base, sdb->buf_size,  in smb_init_data_buffer()
472 	sdb->buf_base = base;  in smb_init_data_buffer()
579 	ret = smb_init_data_buffer(pdev, &drvdata->sdb);  in smb_probe()