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;
59 uint32_t uof_size;
60
61 if (request_firmware(&loader_data->uof_fw, hw_device->fw_name,
62 &accel_dev->accel_pci_dev.pci_dev->dev)) {
63 pr_err("QAT: Failed to load firmware %s\n", hw_device->fw_name);
64 return -EFAULT;
65 }
66
67 uof_size = loader_data->uof_fw->size;
68 uof_addr = (void *)loader_data->uof_fw->data;
69 if (qat_uclo_map_uof_obj(loader_data->fw_loader, uof_addr, uof_size)) {
70 pr_err("QAT: Failed to map UOF\n");
71 goto out_err;
72 }
73 if (qat_uclo_wr_all_uimage(loader_data->fw_loader)) {
74 pr_err("QAT: Failed to map UOF\n");
75 goto out_err;
76 }
77 return 0;
78
79 out_err:
80 release_firmware(loader_data->uof_fw);
81 return -EFAULT;
82 }
83
adf_ae_fw_release(struct adf_accel_dev * accel_dev)84 int adf_ae_fw_release(struct adf_accel_dev *accel_dev)
85 {
86 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
87
88 release_firmware(loader_data->uof_fw);
89 qat_uclo_del_uof_obj(loader_data->fw_loader);
90 qat_hal_deinit(loader_data->fw_loader);
91 loader_data->fw_loader = NULL;
92 return 0;
93 }
94
adf_ae_start(struct adf_accel_dev * accel_dev)95 int adf_ae_start(struct adf_accel_dev *accel_dev)
96 {
97 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
98 struct adf_hw_device_data *hw_data = accel_dev->hw_device;
99 uint32_t ae_ctr, ae, max_aes = GET_MAX_ACCELENGINES(accel_dev);
100
101 for (ae = 0, ae_ctr = 0; ae < max_aes; ae++) {
102 if (hw_data->ae_mask & (1 << ae)) {
103 qat_hal_start(loader_data->fw_loader, ae, 0xFF);
104 ae_ctr++;
105 }
106 }
107 pr_info("QAT: qat_dev%d started %d acceleration engines\n",
108 accel_dev->accel_id, ae_ctr);
109 return 0;
110 }
111
adf_ae_stop(struct adf_accel_dev * accel_dev)112 int adf_ae_stop(struct adf_accel_dev *accel_dev)
113 {
114 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
115 struct adf_hw_device_data *hw_data = accel_dev->hw_device;
116 uint32_t ae_ctr, ae, max_aes = GET_MAX_ACCELENGINES(accel_dev);
117
118 for (ae = 0, ae_ctr = 0; ae < max_aes; ae++) {
119 if (hw_data->ae_mask & (1 << ae)) {
120 qat_hal_stop(loader_data->fw_loader, ae, 0xFF);
121 ae_ctr++;
122 }
123 }
124 pr_info("QAT: qat_dev%d stopped %d acceleration engines\n",
125 accel_dev->accel_id, ae_ctr);
126 return 0;
127 }
128
adf_ae_reset(struct adf_accel_dev * accel_dev,int ae)129 static int adf_ae_reset(struct adf_accel_dev *accel_dev, int ae)
130 {
131 struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
132
133 qat_hal_reset(loader_data->fw_loader);
134 if (qat_hal_clr_reset(loader_data->fw_loader))
135 return -EFAULT;
136
137 return 0;
138 }
139
adf_ae_init(struct adf_accel_dev * accel_dev)140 int adf_ae_init(struct adf_accel_dev *accel_dev)
141 {
142 struct adf_fw_loader_data *loader_data;
143
144 loader_data = kzalloc(sizeof(*loader_data), GFP_KERNEL);
145 if (!loader_data)
146 return -ENOMEM;
147
148 accel_dev->fw_loader = loader_data;
149 if (qat_hal_init(accel_dev)) {
150 pr_err("QAT: Failed to init the AEs\n");
151 kfree(loader_data);
152 return -EFAULT;
153 }
154 if (adf_ae_reset(accel_dev, 0)) {
155 pr_err("QAT: Failed to reset the AEs\n");
156 qat_hal_deinit(loader_data->fw_loader);
157 kfree(loader_data);
158 return -EFAULT;
159 }
160 return 0;
161 }
162
adf_ae_shutdown(struct adf_accel_dev * accel_dev)163 int adf_ae_shutdown(struct adf_accel_dev *accel_dev)
164 {
165 kfree(accel_dev->fw_loader);
166 accel_dev->fw_loader = NULL;
167 return 0;
168 }
169