1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * The above copyright notice and this permission notice (including the
23  * next paragraph) shall be included in all copies or substantial portions
24  * of the Software.
25  *
26  */
27 
28 #include <linux/firmware.h>
29 #include <linux/mfd/core.h>
30 
31 #include "amdgpu.h"
32 #include "amdgpu_isp.h"
33 #include "isp_v4_1_0.h"
34 #include "isp_v4_1_1.h"
35 
36 static int isp_sw_fini(struct amdgpu_ip_block *ip_block)
37 {
38 	return 0;
39 }
40 
41 /**
42  * isp_hw_init - start and test isp block
43  *
44  * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
45  *
46  */
47 static int isp_hw_init(struct amdgpu_ip_block *ip_block)
48 {
49 	struct amdgpu_device *adev = ip_block->adev;
50 	struct amdgpu_isp *isp = &adev->isp;
51 
52 	if (isp->funcs->hw_init != NULL)
53 		return isp->funcs->hw_init(isp);
54 
55 	return -ENODEV;
56 }
57 
58 /**
59  * isp_hw_fini - stop the hardware block
60  *
61  * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
62  *
63  */
64 static int isp_hw_fini(struct amdgpu_ip_block *ip_block)
65 {
66 	struct amdgpu_isp *isp = &ip_block->adev->isp;
67 
68 	if (isp->funcs->hw_fini != NULL)
69 		return isp->funcs->hw_fini(isp);
70 
71 	return -ENODEV;
72 }
73 
74 static int isp_suspend(struct amdgpu_ip_block *ip_block)
75 {
76 	return 0;
77 }
78 
79 static int isp_resume(struct amdgpu_ip_block *ip_block)
80 {
81 	return 0;
82 }
83 
84 static int isp_load_fw_by_psp(struct amdgpu_device *adev)
85 {
86 	const struct common_firmware_header *hdr;
87 	char ucode_prefix[10];
88 	int r = 0;
89 
90 	/* get isp fw binary name and path */
91 	amdgpu_ucode_ip_version_decode(adev, ISP_HWIP, ucode_prefix,
92 				       sizeof(ucode_prefix));
93 
94 	/* read isp fw */
95 	r = amdgpu_ucode_request(adev, &adev->isp.fw, "amdgpu/%s.bin", ucode_prefix);
96 	if (r) {
97 		amdgpu_ucode_release(&adev->isp.fw);
98 		return r;
99 	}
100 
101 	hdr = (const struct common_firmware_header *)adev->isp.fw->data;
102 
103 	adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].ucode_id =
104 		AMDGPU_UCODE_ID_ISP;
105 	adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].fw = adev->isp.fw;
106 
107 	adev->firmware.fw_size +=
108 		ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
109 
110 	return r;
111 }
112 
113 static int isp_early_init(struct amdgpu_ip_block *ip_block)
114 {
115 
116 	struct amdgpu_device *adev = ip_block->adev;
117 	struct amdgpu_isp *isp = &adev->isp;
118 
119 	switch (amdgpu_ip_version(adev, ISP_HWIP, 0)) {
120 	case IP_VERSION(4, 1, 0):
121 		isp_v4_1_0_set_isp_funcs(isp);
122 		break;
123 	case IP_VERSION(4, 1, 1):
124 		isp_v4_1_1_set_isp_funcs(isp);
125 		break;
126 	default:
127 		return -EINVAL;
128 	}
129 
130 	isp->adev = adev;
131 	isp->parent = adev->dev;
132 
133 	if (isp_load_fw_by_psp(adev)) {
134 		DRM_DEBUG_DRIVER("%s: isp fw load failed\n", __func__);
135 		return -ENOENT;
136 	}
137 
138 	return 0;
139 }
140 
141 static bool isp_is_idle(void *handle)
142 {
143 	return true;
144 }
145 
146 static int isp_wait_for_idle(struct amdgpu_ip_block *ip_block)
147 {
148 	return 0;
149 }
150 
151 static int isp_soft_reset(struct amdgpu_ip_block *ip_block)
152 {
153 	return 0;
154 }
155 
156 static int isp_set_clockgating_state(void *handle,
157 				     enum amd_clockgating_state state)
158 {
159 	return 0;
160 }
161 
162 static int isp_set_powergating_state(void *handle,
163 				     enum amd_powergating_state state)
164 {
165 	return 0;
166 }
167 
168 static const struct amd_ip_funcs isp_ip_funcs = {
169 	.name = "isp_ip",
170 	.early_init = isp_early_init,
171 	.late_init = NULL,
172 	.sw_fini = isp_sw_fini,
173 	.hw_init = isp_hw_init,
174 	.hw_fini = isp_hw_fini,
175 	.suspend = isp_suspend,
176 	.resume = isp_resume,
177 	.is_idle = isp_is_idle,
178 	.wait_for_idle = isp_wait_for_idle,
179 	.soft_reset = isp_soft_reset,
180 	.set_clockgating_state = isp_set_clockgating_state,
181 	.set_powergating_state = isp_set_powergating_state,
182 };
183 
184 const struct amdgpu_ip_block_version isp_v4_1_0_ip_block = {
185 	.type = AMD_IP_BLOCK_TYPE_ISP,
186 	.major = 4,
187 	.minor = 1,
188 	.rev = 0,
189 	.funcs = &isp_ip_funcs,
190 };
191 
192 const struct amdgpu_ip_block_version isp_v4_1_1_ip_block = {
193 	.type = AMD_IP_BLOCK_TYPE_ISP,
194 	.major = 4,
195 	.minor = 1,
196 	.rev = 1,
197 	.funcs = &isp_ip_funcs,
198 };
199