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/**
 37 * isp_hw_init - start and test isp block
 38 *
 39 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 40 *
 41 */
 42static int isp_hw_init(struct amdgpu_ip_block *ip_block)
 43{
 44	struct amdgpu_device *adev = ip_block->adev;
 45	struct amdgpu_isp *isp = &adev->isp;
 46
 47	if (isp->funcs->hw_init != NULL)
 48		return isp->funcs->hw_init(isp);
 49
 50	return -ENODEV;
 51}
 52
 53/**
 54 * isp_hw_fini - stop the hardware block
 55 *
 56 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 57 *
 58 */
 59static int isp_hw_fini(struct amdgpu_ip_block *ip_block)
 60{
 61	struct amdgpu_isp *isp = &ip_block->adev->isp;
 62
 63	if (isp->funcs->hw_fini != NULL)
 64		return isp->funcs->hw_fini(isp);
 65
 66	return -ENODEV;
 67}
 68
 69static int isp_load_fw_by_psp(struct amdgpu_device *adev)
 70{
 71	const struct common_firmware_header *hdr;
 72	char ucode_prefix[10];
 73	int r = 0;
 74
 75	/* get isp fw binary name and path */
 76	amdgpu_ucode_ip_version_decode(adev, ISP_HWIP, ucode_prefix,
 77				       sizeof(ucode_prefix));
 78
 79	/* read isp fw */
 80	r = amdgpu_ucode_request(adev, &adev->isp.fw, "amdgpu/%s.bin", ucode_prefix);
 81	if (r) {
 82		amdgpu_ucode_release(&adev->isp.fw);
 83		return r;
 84	}
 85
 86	hdr = (const struct common_firmware_header *)adev->isp.fw->data;
 87
 88	adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].ucode_id =
 89		AMDGPU_UCODE_ID_ISP;
 90	adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].fw = adev->isp.fw;
 91
 92	adev->firmware.fw_size +=
 93		ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
 94
 95	return r;
 96}
 97
 98static int isp_early_init(struct amdgpu_ip_block *ip_block)
 99{
100
101	struct amdgpu_device *adev = ip_block->adev;
102	struct amdgpu_isp *isp = &adev->isp;
103
104	switch (amdgpu_ip_version(adev, ISP_HWIP, 0)) {
105	case IP_VERSION(4, 1, 0):
106		isp_v4_1_0_set_isp_funcs(isp);
107		break;
108	case IP_VERSION(4, 1, 1):
109		isp_v4_1_1_set_isp_funcs(isp);
110		break;
111	default:
112		return -EINVAL;
113	}
114
115	isp->adev = adev;
116	isp->parent = adev->dev;
117
118	if (isp_load_fw_by_psp(adev)) {
119		DRM_DEBUG_DRIVER("%s: isp fw load failed\n", __func__);
120		return -ENOENT;
121	}
122
123	return 0;
124}
125
126static bool isp_is_idle(void *handle)
127{
128	return true;
129}
130
131static int isp_set_clockgating_state(void *handle,
132				     enum amd_clockgating_state state)
133{
134	return 0;
135}
136
137static int isp_set_powergating_state(void *handle,
138				     enum amd_powergating_state state)
139{
140	return 0;
141}
142
143static const struct amd_ip_funcs isp_ip_funcs = {
144	.name = "isp_ip",
145	.early_init = isp_early_init,
146	.hw_init = isp_hw_init,
147	.hw_fini = isp_hw_fini,
148	.is_idle = isp_is_idle,
149	.set_clockgating_state = isp_set_clockgating_state,
150	.set_powergating_state = isp_set_powergating_state,
151};
152
153const struct amdgpu_ip_block_version isp_v4_1_0_ip_block = {
154	.type = AMD_IP_BLOCK_TYPE_ISP,
155	.major = 4,
156	.minor = 1,
157	.rev = 0,
158	.funcs = &isp_ip_funcs,
159};
160
161const struct amdgpu_ip_block_version isp_v4_1_1_ip_block = {
162	.type = AMD_IP_BLOCK_TYPE_ISP,
163	.major = 4,
164	.minor = 1,
165	.rev = 1,
166	.funcs = &isp_ip_funcs,
167};