tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2022 Intel Corporation
4 */
5
6#ifndef _XE_UC_FW_H_
7#define _XE_UC_FW_H_
8
9#include <linux/errno.h>
10
11#include "xe_macros.h"
12#include "xe_uc_fw_abi.h"
13#include "xe_uc_fw_types.h"
14
15struct drm_printer;
16
17int xe_uc_fw_init(struct xe_uc_fw *uc_fw);
18size_t xe_uc_fw_copy_rsa(struct xe_uc_fw *uc_fw, void *dst, u32 max_len);
19int xe_uc_fw_upload(struct xe_uc_fw *uc_fw, u32 offset, u32 dma_flags);
20int xe_uc_fw_check_version_requirements(struct xe_uc_fw *uc_fw);
21void xe_uc_fw_print(struct xe_uc_fw *uc_fw, struct drm_printer *p);
22
23static inline u32 xe_uc_fw_rsa_offset(struct xe_uc_fw *uc_fw)
24{
25 return sizeof(struct uc_css_header) + uc_fw->ucode_size + uc_fw->css_offset;
26}
27
28static inline void xe_uc_fw_change_status(struct xe_uc_fw *uc_fw,
29 enum xe_uc_fw_status status)
30{
31 uc_fw->__status = status;
32}
33
34static inline
35const char *xe_uc_fw_status_repr(enum xe_uc_fw_status status)
36{
37 switch (status) {
38 case XE_UC_FIRMWARE_NOT_SUPPORTED:
39 return "N/A";
40 case XE_UC_FIRMWARE_UNINITIALIZED:
41 return "UNINITIALIZED";
42 case XE_UC_FIRMWARE_DISABLED:
43 return "DISABLED";
44 case XE_UC_FIRMWARE_SELECTED:
45 return "SELECTED";
46 case XE_UC_FIRMWARE_MISSING:
47 return "MISSING";
48 case XE_UC_FIRMWARE_ERROR:
49 return "ERROR";
50 case XE_UC_FIRMWARE_AVAILABLE:
51 return "AVAILABLE";
52 case XE_UC_FIRMWARE_INIT_FAIL:
53 return "INIT FAIL";
54 case XE_UC_FIRMWARE_LOADABLE:
55 return "LOADABLE";
56 case XE_UC_FIRMWARE_LOAD_FAIL:
57 return "LOAD FAIL";
58 case XE_UC_FIRMWARE_TRANSFERRED:
59 return "TRANSFERRED";
60 case XE_UC_FIRMWARE_RUNNING:
61 return "RUNNING";
62 case XE_UC_FIRMWARE_PRELOADED:
63 return "PRELOADED";
64 }
65 return "<invalid>";
66}
67
68static inline int xe_uc_fw_status_to_error(enum xe_uc_fw_status status)
69{
70 switch (status) {
71 case XE_UC_FIRMWARE_NOT_SUPPORTED:
72 return -ENODEV;
73 case XE_UC_FIRMWARE_UNINITIALIZED:
74 return -EACCES;
75 case XE_UC_FIRMWARE_DISABLED:
76 return -EPERM;
77 case XE_UC_FIRMWARE_MISSING:
78 return -ENOENT;
79 case XE_UC_FIRMWARE_ERROR:
80 return -ENOEXEC;
81 case XE_UC_FIRMWARE_INIT_FAIL:
82 case XE_UC_FIRMWARE_LOAD_FAIL:
83 return -EIO;
84 case XE_UC_FIRMWARE_SELECTED:
85 return -ESTALE;
86 case XE_UC_FIRMWARE_AVAILABLE:
87 case XE_UC_FIRMWARE_LOADABLE:
88 case XE_UC_FIRMWARE_TRANSFERRED:
89 case XE_UC_FIRMWARE_RUNNING:
90 case XE_UC_FIRMWARE_PRELOADED:
91 return 0;
92 }
93 return -EINVAL;
94}
95
96static inline const char *xe_uc_fw_type_repr(enum xe_uc_fw_type type)
97{
98 switch (type) {
99 case XE_UC_FW_TYPE_GUC:
100 return "GuC";
101 case XE_UC_FW_TYPE_HUC:
102 return "HuC";
103 case XE_UC_FW_TYPE_GSC:
104 return "GSC";
105 default:
106 return "uC";
107 }
108}
109
110static inline enum xe_uc_fw_status
111__xe_uc_fw_status(struct xe_uc_fw *uc_fw)
112{
113 /* shouldn't call this before checking hw/blob availability */
114 XE_WARN_ON(uc_fw->status == XE_UC_FIRMWARE_UNINITIALIZED);
115 return uc_fw->status;
116}
117
118static inline bool xe_uc_fw_is_supported(struct xe_uc_fw *uc_fw)
119{
120 return __xe_uc_fw_status(uc_fw) != XE_UC_FIRMWARE_NOT_SUPPORTED;
121}
122
123static inline bool xe_uc_fw_is_enabled(struct xe_uc_fw *uc_fw)
124{
125 return __xe_uc_fw_status(uc_fw) > XE_UC_FIRMWARE_DISABLED;
126}
127
128static inline bool xe_uc_fw_is_disabled(struct xe_uc_fw *uc_fw)
129{
130 return __xe_uc_fw_status(uc_fw) == XE_UC_FIRMWARE_DISABLED;
131}
132
133static inline bool xe_uc_fw_is_available(struct xe_uc_fw *uc_fw)
134{
135 return __xe_uc_fw_status(uc_fw) >= XE_UC_FIRMWARE_AVAILABLE;
136}
137
138static inline bool xe_uc_fw_is_loadable(struct xe_uc_fw *uc_fw)
139{
140 return __xe_uc_fw_status(uc_fw) >= XE_UC_FIRMWARE_LOADABLE &&
141 __xe_uc_fw_status(uc_fw) != XE_UC_FIRMWARE_PRELOADED;
142}
143
144static inline bool xe_uc_fw_is_loaded(struct xe_uc_fw *uc_fw)
145{
146 return __xe_uc_fw_status(uc_fw) >= XE_UC_FIRMWARE_TRANSFERRED;
147}
148
149static inline bool xe_uc_fw_is_running(struct xe_uc_fw *uc_fw)
150{
151 return __xe_uc_fw_status(uc_fw) >= XE_UC_FIRMWARE_RUNNING;
152}
153
154static inline bool xe_uc_fw_is_overridden(const struct xe_uc_fw *uc_fw)
155{
156 return uc_fw->user_overridden;
157}
158
159static inline void xe_uc_fw_sanitize(struct xe_uc_fw *uc_fw)
160{
161 if (xe_uc_fw_is_loadable(uc_fw))
162 xe_uc_fw_change_status(uc_fw, XE_UC_FIRMWARE_LOADABLE);
163}
164
165static inline u32 __xe_uc_fw_get_upload_size(struct xe_uc_fw *uc_fw)
166{
167 return sizeof(struct uc_css_header) + uc_fw->ucode_size;
168}
169
170/**
171 * xe_uc_fw_get_upload_size() - Get size of firmware needed to be uploaded.
172 * @uc_fw: uC firmware.
173 *
174 * Get the size of the firmware and header that will be uploaded to WOPCM.
175 *
176 * Return: Upload firmware size, or zero on firmware fetch failure.
177 */
178static inline u32 xe_uc_fw_get_upload_size(struct xe_uc_fw *uc_fw)
179{
180 if (!xe_uc_fw_is_available(uc_fw))
181 return 0;
182
183 return __xe_uc_fw_get_upload_size(uc_fw);
184}
185
186#define XE_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git"
187
188#endif