1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _ASM_X86_CPU_DEVICE_ID |
3 | #define _ASM_X86_CPU_DEVICE_ID |
4 | |
5 | /* |
6 | * Declare drivers belonging to specific x86 CPUs |
7 | * Similar in spirit to pci_device_id and related PCI functions |
8 | * |
9 | * The wildcard initializers are in mod_devicetable.h because |
10 | * file2alias needs them. Sigh. |
11 | */ |
12 | #include <linux/mod_devicetable.h> |
13 | /* Get the INTEL_FAM* model defines */ |
14 | #include <asm/intel-family.h> |
15 | /* And the X86_VENDOR_* ones */ |
16 | #include <asm/processor.h> |
17 | |
18 | /* Centaur FAM6 models */ |
19 | #define X86_CENTAUR_FAM6_C7_A 0xa |
20 | #define X86_CENTAUR_FAM6_C7_D 0xd |
21 | #define X86_CENTAUR_FAM6_NANO 0xf |
22 | |
23 | #define X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins) |
24 | /** |
25 | * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching |
26 | * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
27 | * The name is expanded to X86_VENDOR_@_vendor |
28 | * @_family: The family number or X86_FAMILY_ANY |
29 | * @_model: The model number, model constant or X86_MODEL_ANY |
30 | * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY |
31 | * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY |
32 | * @_data: Driver specific data or NULL. The internal storage |
33 | * format is unsigned long. The supplied value, pointer |
34 | * etc. is casted to unsigned long internally. |
35 | * |
36 | * Use only if you need all selectors. Otherwise use one of the shorter |
37 | * macros of the X86_MATCH_* family. If there is no matching shorthand |
38 | * macro, consider to add one. If you really need to wrap one of the macros |
39 | * into another macro at the usage site for good reasons, then please |
40 | * start this local macro with X86_MATCH to allow easy grepping. |
41 | */ |
42 | #define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \ |
43 | _steppings, _feature, _data) { \ |
44 | .vendor = X86_VENDOR_##_vendor, \ |
45 | .family = _family, \ |
46 | .model = _model, \ |
47 | .steppings = _steppings, \ |
48 | .feature = _feature, \ |
49 | .driver_data = (unsigned long) _data \ |
50 | } |
51 | |
52 | /** |
53 | * X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Macro for CPU matching |
54 | * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
55 | * The name is expanded to X86_VENDOR_@_vendor |
56 | * @_family: The family number or X86_FAMILY_ANY |
57 | * @_model: The model number, model constant or X86_MODEL_ANY |
58 | * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY |
59 | * @_data: Driver specific data or NULL. The internal storage |
60 | * format is unsigned long. The supplied value, pointer |
61 | * etc. is casted to unsigned long internally. |
62 | * |
63 | * The steppings arguments of X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE() is |
64 | * set to wildcards. |
65 | */ |
66 | #define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, feature, data) \ |
67 | X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(vendor, family, model, \ |
68 | X86_STEPPING_ANY, feature, data) |
69 | |
70 | /** |
71 | * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature |
72 | * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
73 | * The name is expanded to X86_VENDOR_@vendor |
74 | * @family: The family number or X86_FAMILY_ANY |
75 | * @feature: A X86_FEATURE bit |
76 | * @data: Driver specific data or NULL. The internal storage |
77 | * format is unsigned long. The supplied value, pointer |
78 | * etc. is casted to unsigned long internally. |
79 | * |
80 | * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are |
81 | * set to wildcards. |
82 | */ |
83 | #define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ |
84 | X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \ |
85 | X86_MODEL_ANY, feature, data) |
86 | |
87 | /** |
88 | * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature |
89 | * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
90 | * The name is expanded to X86_VENDOR_@vendor |
91 | * @feature: A X86_FEATURE bit |
92 | * @data: Driver specific data or NULL. The internal storage |
93 | * format is unsigned long. The supplied value, pointer |
94 | * etc. is casted to unsigned long internally. |
95 | * |
96 | * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are |
97 | * set to wildcards. |
98 | */ |
99 | #define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ |
100 | X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data) |
101 | |
102 | /** |
103 | * X86_MATCH_FEATURE - Macro for matching a CPU feature |
104 | * @feature: A X86_FEATURE bit |
105 | * @data: Driver specific data or NULL. The internal storage |
106 | * format is unsigned long. The supplied value, pointer |
107 | * etc. is casted to unsigned long internally. |
108 | * |
109 | * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are |
110 | * set to wildcards. |
111 | */ |
112 | #define X86_MATCH_FEATURE(feature, data) \ |
113 | X86_MATCH_VENDOR_FEATURE(ANY, feature, data) |
114 | |
115 | /** |
116 | * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model |
117 | * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
118 | * The name is expanded to X86_VENDOR_@vendor |
119 | * @family: The family number or X86_FAMILY_ANY |
120 | * @model: The model number, model constant or X86_MODEL_ANY |
121 | * @data: Driver specific data or NULL. The internal storage |
122 | * format is unsigned long. The supplied value, pointer |
123 | * etc. is casted to unsigned long internally. |
124 | * |
125 | * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are |
126 | * set to wildcards. |
127 | */ |
128 | #define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ |
129 | X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \ |
130 | X86_FEATURE_ANY, data) |
131 | |
132 | /** |
133 | * X86_MATCH_VENDOR_FAM - Match vendor and family |
134 | * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY |
135 | * The name is expanded to X86_VENDOR_@vendor |
136 | * @family: The family number or X86_FAMILY_ANY |
137 | * @data: Driver specific data or NULL. The internal storage |
138 | * format is unsigned long. The supplied value, pointer |
139 | * etc. is casted to unsigned long internally. |
140 | * |
141 | * All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are |
142 | * set of wildcards. |
143 | */ |
144 | #define X86_MATCH_VENDOR_FAM(vendor, family, data) \ |
145 | X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data) |
146 | |
147 | /** |
148 | * X86_MATCH_INTEL_FAM6_MODEL - Match vendor INTEL, family 6 and model |
149 | * @model: The model name without the INTEL_FAM6_ prefix or ANY |
150 | * The model name is expanded to INTEL_FAM6_@model internally |
151 | * @data: Driver specific data or NULL. The internal storage |
152 | * format is unsigned long. The supplied value, pointer |
153 | * etc. is casted to unsigned long internally. |
154 | * |
155 | * The vendor is set to INTEL, the family to 6 and all other missing |
156 | * arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are set to wildcards. |
157 | * |
158 | * See X86_MATCH_VENDOR_FAM_MODEL_FEATURE() for further information. |
159 | */ |
160 | #define X86_MATCH_INTEL_FAM6_MODEL(model, data) \ |
161 | X86_MATCH_VENDOR_FAM_MODEL(INTEL, 6, INTEL_FAM6_##model, data) |
162 | |
163 | #define X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS(model, steppings, data) \ |
164 | X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(INTEL, 6, INTEL_FAM6_##model, \ |
165 | steppings, X86_FEATURE_ANY, data) |
166 | |
167 | /* |
168 | * Match specific microcode revisions. |
169 | * |
170 | * vendor/family/model/stepping must be all set. |
171 | * |
172 | * Only checks against the boot CPU. When mixed-stepping configs are |
173 | * valid for a CPU model, add a quirk for every valid stepping and |
174 | * do the fine-tuning in the quirk handler. |
175 | */ |
176 | |
177 | struct x86_cpu_desc { |
178 | u8 x86_family; |
179 | u8 x86_vendor; |
180 | u8 x86_model; |
181 | u8 x86_stepping; |
182 | u32 x86_microcode_rev; |
183 | }; |
184 | |
185 | #define INTEL_CPU_DESC(model, stepping, revision) { \ |
186 | .x86_family = 6, \ |
187 | .x86_vendor = X86_VENDOR_INTEL, \ |
188 | .x86_model = (model), \ |
189 | .x86_stepping = (stepping), \ |
190 | .x86_microcode_rev = (revision), \ |
191 | } |
192 | |
193 | extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); |
194 | extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table); |
195 | |
196 | #endif /* _ASM_X86_CPU_DEVICE_ID */ |
197 | |