1 /*
2 This file is provided under a dual BSD/GPLv2 license. When using or
3 redistributing this file, you may do so under either license.
4
5 GPL LICENSE SUMMARY
6 Copyright(c) 2014 Intel Corporation.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of version 2 of the GNU General Public License as
9 published by the Free Software Foundation.
10
11 This program is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 Contact Information:
17 qat-linux@intel.com
18
19 BSD LICENSE
20 Copyright(c) 2014 Intel Corporation.
21 Redistribution and use in source and binary forms, with or without
22 modification, are permitted provided that the following conditions
23 are met:
24
25 * Redistributions of source code must retain the above copyright
26 notice, this list of conditions and the following disclaimer.
27 * Redistributions in binary form must reproduce the above copyright
28 notice, this list of conditions and the following disclaimer in
29 the documentation and/or other materials provided with the
30 distribution.
31 * Neither the name of Intel Corporation nor the names of its
32 contributors may be used to endorse or promote products derived
33 from this software without specific prior written permission.
34
35 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
46 */
47 #include <linux/firmware.h>
48 #include <linux/pci.h>
49 #include "adf_cfg.h"
50 #include "adf_accel_devices.h"
51 #include "adf_common_drv.h"
52 #include "icp_qat_uclo.h"
53
adf_ae_fw_load(struct adf_accel_dev * accel_dev)54 int adf_ae_fw_load(struct adf_accel_dev *accel_dev)
55 {
56 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
57 struct adf_hw_device_data *hw_device = accel_dev->hw_device;
58 void *uof_addr, *mmp_addr;
59 u32 uof_size, mmp_size;
60
61 if (!hw_device->fw_name)
62 return 0;
63
64 if (request_firmware(&loader_data->mmp_fw, hw_device->fw_mmp_name,
65 &accel_dev->accel_pci_dev.pci_dev->dev)) {
66 dev_err(&GET_DEV(accel_dev), "Failed to load MMP firmware %s\n",
67 hw_device->fw_mmp_name);
68 return -EFAULT;
69 }
70 if (request_firmware(&loader_data->uof_fw, hw_device->fw_name,
71 &accel_dev->accel_pci_dev.pci_dev->dev)) {
72 dev_err(&GET_DEV(accel_dev), "Failed to load UOF firmware %s\n",
73 hw_device->fw_name);
74 goto out_err;
75 }
76
77 uof_size = loader_data->uof_fw->size;
78 uof_addr = (void *)loader_data->uof_fw->data;
79 mmp_size = loader_data->mmp_fw->size;
80 mmp_addr = (void *)loader_data->mmp_fw->data;
81 qat_uclo_wr_mimage(loader_data->fw_loader, mmp_addr, mmp_size);
82 if (qat_uclo_map_uof_obj(loader_data->fw_loader, uof_addr, uof_size)) {
83 dev_err(&GET_DEV(accel_dev), "Failed to map UOF\n");
84 goto out_err;
85 }
86 if (qat_uclo_wr_all_uimage(loader_data->fw_loader)) {
87 dev_err(&GET_DEV(accel_dev), "Failed to load UOF\n");
88 goto out_err;
89 }
90 return 0;
91
92 out_err:
93 adf_ae_fw_release(accel_dev);
94 return -EFAULT;
95 }
96
adf_ae_fw_release(struct adf_accel_dev * accel_dev)97 void adf_ae_fw_release(struct adf_accel_dev *accel_dev)
98 {
99 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
100 struct adf_hw_device_data *hw_device = accel_dev->hw_device;
101
102 if (!hw_device->fw_name)
103 return;
104
105 qat_uclo_del_uof_obj(loader_data->fw_loader);
106 qat_hal_deinit(loader_data->fw_loader);
107 release_firmware(loader_data->uof_fw);
108 release_firmware(loader_data->mmp_fw);
109 loader_data->uof_fw = NULL;
110 loader_data->mmp_fw = NULL;
111 loader_data->fw_loader = NULL;
112 }
113
adf_ae_start(struct adf_accel_dev * accel_dev)114 int adf_ae_start(struct adf_accel_dev *accel_dev)
115 {
116 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
117 struct adf_hw_device_data *hw_data = accel_dev->hw_device;
118 uint32_t ae_ctr, ae, max_aes = GET_MAX_ACCELENGINES(accel_dev);
119
120 if (!hw_data->fw_name)
121 return 0;
122
123 for (ae = 0, ae_ctr = 0; ae < max_aes; ae++) {
124 if (hw_data->ae_mask & (1 << ae)) {
125 qat_hal_start(loader_data->fw_loader, ae, 0xFF);
126 ae_ctr++;
127 }
128 }
129 dev_info(&GET_DEV(accel_dev),
130 "qat_dev%d started %d acceleration engines\n",
131 accel_dev->accel_id, ae_ctr);
132 return 0;
133 }
134
adf_ae_stop(struct adf_accel_dev * accel_dev)135 int adf_ae_stop(struct adf_accel_dev *accel_dev)
136 {
137 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
138 struct adf_hw_device_data *hw_data = accel_dev->hw_device;
139 uint32_t ae_ctr, ae, max_aes = GET_MAX_ACCELENGINES(accel_dev);
140
141 if (!hw_data->fw_name)
142 return 0;
143
144 for (ae = 0, ae_ctr = 0; ae < max_aes; ae++) {
145 if (hw_data->ae_mask & (1 << ae)) {
146 qat_hal_stop(loader_data->fw_loader, ae, 0xFF);
147 ae_ctr++;
148 }
149 }
150 dev_info(&GET_DEV(accel_dev),
151 "qat_dev%d stopped %d acceleration engines\n",
152 accel_dev->accel_id, ae_ctr);
153 return 0;
154 }
155
adf_ae_reset(struct adf_accel_dev * accel_dev,int ae)156 static int adf_ae_reset(struct adf_accel_dev *accel_dev, int ae)
157 {
158 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
159
160 qat_hal_reset(loader_data->fw_loader);
161 if (qat_hal_clr_reset(loader_data->fw_loader))
162 return -EFAULT;
163
164 return 0;
165 }
166
adf_ae_init(struct adf_accel_dev * accel_dev)167 int adf_ae_init(struct adf_accel_dev *accel_dev)
168 {
169 struct adf_fw_loader_data *loader_data;
170 struct adf_hw_device_data *hw_device = accel_dev->hw_device;
171
172 if (!hw_device->fw_name)
173 return 0;
174
175 loader_data = kzalloc(sizeof(*loader_data), GFP_KERNEL);
176 if (!loader_data)
177 return -ENOMEM;
178
179 accel_dev->fw_loader = loader_data;
180 if (qat_hal_init(accel_dev)) {
181 dev_err(&GET_DEV(accel_dev), "Failed to init the AEs\n");
182 kfree(loader_data);
183 return -EFAULT;
184 }
185 if (adf_ae_reset(accel_dev, 0)) {
186 dev_err(&GET_DEV(accel_dev), "Failed to reset the AEs\n");
187 qat_hal_deinit(loader_data->fw_loader);
188 kfree(loader_data);
189 return -EFAULT;
190 }
191 return 0;
192 }
193
adf_ae_shutdown(struct adf_accel_dev * accel_dev)194 int adf_ae_shutdown(struct adf_accel_dev *accel_dev)
195 {
196 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
197 struct adf_hw_device_data *hw_device = accel_dev->hw_device;
198
199 if (!hw_device->fw_name)
200 return 0;
201
202 qat_hal_deinit(loader_data->fw_loader);
203 kfree(accel_dev->fw_loader);
204 accel_dev->fw_loader = NULL;
205 return 0;
206 }
207