xref: /linux/drivers/gpu/drm/amd/amdgpu/isp_v4_1_0.c (revision 170aafe35cb98e0f3fbacb446ea86389fbce22ea)
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 "amdgpu.h"
29 #include "isp_v4_1_0.h"
30 
31 static const unsigned int isp_4_1_0_int_srcid[MAX_ISP410_INT_SRC] = {
32 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT9,
33 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT10,
34 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT11,
35 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT12,
36 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT13,
37 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT14,
38 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT15,
39 	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT16
40 };
41 
42 static int isp_v4_1_0_hw_init(struct amdgpu_isp *isp)
43 {
44 	struct amdgpu_device *adev = isp->adev;
45 	u64 isp_base;
46 	int int_idx;
47 	int r;
48 
49 	if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
50 		return -EINVAL;
51 
52 	isp_base = adev->rmmio_base;
53 
54 	isp->isp_cell = kcalloc(1, sizeof(struct mfd_cell), GFP_KERNEL);
55 	if (!isp->isp_cell) {
56 		r = -ENOMEM;
57 		DRM_ERROR("%s: isp mfd cell alloc failed\n", __func__);
58 		goto failure;
59 	}
60 
61 	isp->isp_res = kcalloc(MAX_ISP410_INT_SRC + 1, sizeof(struct resource),
62 			       GFP_KERNEL);
63 	if (!isp->isp_res) {
64 		r = -ENOMEM;
65 		DRM_ERROR("%s: isp mfd res alloc failed\n", __func__);
66 		goto failure;
67 	}
68 
69 	isp->isp_pdata = kzalloc(sizeof(*isp->isp_pdata), GFP_KERNEL);
70 	if (!isp->isp_pdata) {
71 		r = -ENOMEM;
72 		DRM_ERROR("%s: isp platform data alloc failed\n", __func__);
73 		goto failure;
74 	}
75 
76 	/* initialize isp platform data */
77 	isp->isp_pdata->adev = (void *)adev;
78 	isp->isp_pdata->asic_type = adev->asic_type;
79 	isp->isp_pdata->base_rmmio_size = adev->rmmio_size;
80 
81 	isp->isp_res[0].name = "isp_4_1_0_reg";
82 	isp->isp_res[0].flags = IORESOURCE_MEM;
83 	isp->isp_res[0].start = isp_base;
84 	isp->isp_res[0].end = isp_base + ISP_REGS_OFFSET_END;
85 
86 	for (int_idx = 0; int_idx < MAX_ISP410_INT_SRC; int_idx++) {
87 		isp->isp_res[int_idx + 1].name = "isp_4_1_0_irq";
88 		isp->isp_res[int_idx + 1].flags = IORESOURCE_IRQ;
89 		isp->isp_res[int_idx + 1].start =
90 			amdgpu_irq_create_mapping(adev, isp_4_1_0_int_srcid[int_idx]);
91 		isp->isp_res[int_idx + 1].end =
92 			isp->isp_res[int_idx + 1].start;
93 	}
94 
95 	isp->isp_cell[0].name = "amd_isp_capture";
96 	isp->isp_cell[0].num_resources = MAX_ISP410_INT_SRC + 1;
97 	isp->isp_cell[0].resources = &isp->isp_res[0];
98 	isp->isp_cell[0].platform_data = isp->isp_pdata;
99 	isp->isp_cell[0].pdata_size = sizeof(struct isp_platform_data);
100 
101 	r = mfd_add_hotplug_devices(isp->parent, isp->isp_cell, 1);
102 	if (r) {
103 		DRM_ERROR("%s: add mfd hotplug device failed\n", __func__);
104 		goto failure;
105 	}
106 
107 	return 0;
108 
109 failure:
110 
111 	kfree(isp->isp_pdata);
112 	kfree(isp->isp_res);
113 	kfree(isp->isp_cell);
114 
115 	return r;
116 }
117 
118 static int isp_v4_1_0_hw_fini(struct amdgpu_isp *isp)
119 {
120 	mfd_remove_devices(isp->parent);
121 
122 	kfree(isp->isp_res);
123 	kfree(isp->isp_cell);
124 	kfree(isp->isp_pdata);
125 
126 	return 0;
127 }
128 
129 static const struct isp_funcs isp_v4_1_0_funcs = {
130 	.hw_init = isp_v4_1_0_hw_init,
131 	.hw_fini = isp_v4_1_0_hw_fini,
132 };
133 
134 void isp_v4_1_0_set_isp_funcs(struct amdgpu_isp *isp)
135 {
136 	isp->funcs = &isp_v4_1_0_funcs;
137 }
138