1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2018 Intel Corporation
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
21 * Copyright(c) 2018 Intel Corporation
22 * All rights reserved.
24 * Redistribution and use in source and binary forms, with or without
25 * modification, are permitted provided that the following conditions
28 * * Redistributions of source code must retain the above copyright
29 * notice, this list of conditions and the following disclaimer.
30 * * Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in
32 * the documentation and/or other materials provided with the
34 * * Neither the name Intel Corporation nor the names of its
35 * contributors may be used to endorse or promote products derived
36 * from this software without specific prior written permission.
38 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
39 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
40 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
41 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
42 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
44 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
45 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
46 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
47 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
48 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50 *****************************************************************************/
52 #include "iwl-trans.h"
54 #include "iwl-context-info-gen3.h"
58 int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
59 const struct fw_img *fw)
61 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
62 struct iwl_context_info_gen3 *ctxt_info_gen3;
63 struct iwl_prph_scratch *prph_scratch;
64 struct iwl_prph_scratch_ctrl_cfg *prph_sc_ctrl;
65 struct iwl_prph_info *prph_info;
67 u32 control_flags = 0;
70 /* Allocate prph scratch */
71 prph_scratch = dma_alloc_coherent(trans->dev, sizeof(*prph_scratch),
72 &trans_pcie->prph_scratch_dma_addr,
77 prph_sc_ctrl = &prph_scratch->ctrl_cfg;
79 prph_sc_ctrl->version.version = 0;
80 prph_sc_ctrl->version.mac_id =
81 cpu_to_le16((u16)iwl_read32(trans, CSR_HW_REV));
82 prph_sc_ctrl->version.size = cpu_to_le16(sizeof(*prph_scratch) / 4);
84 control_flags = IWL_PRPH_SCRATCH_RB_SIZE_4K |
85 IWL_PRPH_SCRATCH_MTR_MODE |
86 (IWL_PRPH_MTR_FORMAT_256B &
87 IWL_PRPH_SCRATCH_MTR_FORMAT) |
88 IWL_PRPH_SCRATCH_EARLY_DEBUG_EN |
89 IWL_PRPH_SCRATCH_EDBG_DEST_DRAM;
90 prph_sc_ctrl->control.control_flags = cpu_to_le32(control_flags);
92 /* initialize RX default queue */
93 prph_sc_ctrl->rbd_cfg.free_rbd_addr =
94 cpu_to_le64(trans_pcie->rxq->bd_dma);
96 /* Configure debug, for integration */
97 iwl_pcie_alloc_fw_monitor(trans, 0);
98 prph_sc_ctrl->hwm_cfg.hwm_base_addr =
99 cpu_to_le64(trans_pcie->fw_mon_phys);
100 prph_sc_ctrl->hwm_cfg.hwm_size =
101 cpu_to_le32(trans_pcie->fw_mon_size);
103 /* allocate ucode sections in dram and set addresses */
104 ret = iwl_pcie_init_fw_sec(trans, fw, &prph_scratch->dram);
106 dma_free_coherent(trans->dev,
107 sizeof(*prph_scratch),
109 trans_pcie->prph_scratch_dma_addr);
113 /* Allocate prph information
114 * currently we don't assign to the prph info anything, but it would get
116 prph_info = dma_alloc_coherent(trans->dev, sizeof(*prph_info),
117 &trans_pcie->prph_info_dma_addr,
122 /* Allocate context info */
123 ctxt_info_gen3 = dma_alloc_coherent(trans->dev,
124 sizeof(*ctxt_info_gen3),
125 &trans_pcie->ctxt_info_dma_addr,
130 ctxt_info_gen3->prph_info_base_addr =
131 cpu_to_le64(trans_pcie->prph_info_dma_addr);
132 ctxt_info_gen3->prph_scratch_base_addr =
133 cpu_to_le64(trans_pcie->prph_scratch_dma_addr);
134 ctxt_info_gen3->prph_scratch_size =
135 cpu_to_le32(sizeof(*prph_scratch));
136 ctxt_info_gen3->cr_head_idx_arr_base_addr =
137 cpu_to_le64(trans_pcie->rxq->rb_stts_dma);
138 ctxt_info_gen3->tr_tail_idx_arr_base_addr =
139 cpu_to_le64(trans_pcie->rxq->tr_tail_dma);
140 ctxt_info_gen3->cr_tail_idx_arr_base_addr =
141 cpu_to_le64(trans_pcie->rxq->cr_tail_dma);
142 ctxt_info_gen3->cr_idx_arr_size =
143 cpu_to_le16(IWL_NUM_OF_COMPLETION_RINGS);
144 ctxt_info_gen3->tr_idx_arr_size =
145 cpu_to_le16(IWL_NUM_OF_TRANSFER_RINGS);
146 ctxt_info_gen3->mtr_base_addr =
147 cpu_to_le64(trans_pcie->txq[trans_pcie->cmd_queue]->dma_addr);
148 ctxt_info_gen3->mcr_base_addr =
149 cpu_to_le64(trans_pcie->rxq->used_bd_dma);
150 ctxt_info_gen3->mtr_size =
151 cpu_to_le16(TFD_QUEUE_CB_SIZE(TFD_CMD_SLOTS));
152 ctxt_info_gen3->mcr_size =
153 cpu_to_le16(RX_QUEUE_CB_SIZE(MQ_RX_TABLE_SIZE));
155 trans_pcie->ctxt_info_gen3 = ctxt_info_gen3;
156 trans_pcie->prph_info = prph_info;
157 trans_pcie->prph_scratch = prph_scratch;
160 iml_img = dma_alloc_coherent(trans->dev, trans->iml_len,
161 &trans_pcie->iml_dma_addr, GFP_KERNEL);
165 memcpy(iml_img, trans->iml, trans->iml_len);
167 iwl_enable_interrupts(trans);
169 /* kick FW self load */
170 iwl_write64(trans, CSR_CTXT_INFO_ADDR,
171 trans_pcie->ctxt_info_dma_addr);
172 iwl_write64(trans, CSR_IML_DATA_ADDR,
173 trans_pcie->iml_dma_addr);
174 iwl_write32(trans, CSR_IML_SIZE_ADDR, trans->iml_len);
175 iwl_set_bit(trans, CSR_CTXT_INFO_BOOT_CTRL, CSR_AUTO_FUNC_BOOT_ENA);
176 iwl_set_bit(trans, CSR_GP_CNTRL, CSR_AUTO_FUNC_INIT);
181 void iwl_pcie_ctxt_info_gen3_free(struct iwl_trans *trans)
183 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
185 if (!trans_pcie->ctxt_info_gen3)
188 dma_free_coherent(trans->dev, sizeof(*trans_pcie->ctxt_info_gen3),
189 trans_pcie->ctxt_info_gen3,
190 trans_pcie->ctxt_info_dma_addr);
191 trans_pcie->ctxt_info_dma_addr = 0;
192 trans_pcie->ctxt_info_gen3 = NULL;
194 iwl_pcie_ctxt_info_free_fw_img(trans);
196 dma_free_coherent(trans->dev, sizeof(*trans_pcie->prph_scratch),
197 trans_pcie->prph_scratch,
198 trans_pcie->prph_scratch_dma_addr);
199 trans_pcie->prph_scratch_dma_addr = 0;
200 trans_pcie->prph_scratch = NULL;
202 dma_free_coherent(trans->dev, sizeof(*trans_pcie->prph_info),
203 trans_pcie->prph_info,
204 trans_pcie->prph_info_dma_addr);
205 trans_pcie->prph_info_dma_addr = 0;
206 trans_pcie->prph_info = NULL;