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1da177e4 LT |
1 | #ifndef _LINUX_EFI_H |
2 | #define _LINUX_EFI_H | |
3 | ||
4 | /* | |
5 | * Extensible Firmware Interface | |
6 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 | |
7 | * | |
8 | * Copyright (C) 1999 VA Linux Systems | |
9 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | |
10 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. | |
11 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
12 | * Stephane Eranian <eranian@hpl.hp.com> | |
13 | */ | |
14 | #include <linux/init.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/time.h> | |
17 | #include <linux/types.h> | |
18 | #include <linux/proc_fs.h> | |
19 | #include <linux/rtc.h> | |
20 | #include <linux/ioport.h> | |
4a3575fd | 21 | #include <linux/pfn.h> |
5ee9c198 | 22 | #include <linux/pstore.h> |
1da177e4 LT |
23 | |
24 | #include <asm/page.h> | |
1da177e4 LT |
25 | |
26 | #define EFI_SUCCESS 0 | |
27 | #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) | |
28 | #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) | |
29 | #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) | |
30 | #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) | |
31 | #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) | |
5d9db883 MG |
32 | #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) |
33 | #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) | |
34 | #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) | |
35 | #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) | |
1da177e4 | 36 | #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) |
5d9db883 | 37 | #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) |
1da177e4 LT |
38 | |
39 | typedef unsigned long efi_status_t; | |
40 | typedef u8 efi_bool_t; | |
41 | typedef u16 efi_char16_t; /* UNICODE character */ | |
42 | ||
43 | ||
44 | typedef struct { | |
45 | u8 b[16]; | |
46 | } efi_guid_t; | |
47 | ||
48 | #define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ | |
49 | ((efi_guid_t) \ | |
50 | {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ | |
51 | (b) & 0xff, ((b) >> 8) & 0xff, \ | |
52 | (c) & 0xff, ((c) >> 8) & 0xff, \ | |
53 | (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) | |
54 | ||
55 | /* | |
56 | * Generic EFI table header | |
57 | */ | |
58 | typedef struct { | |
59 | u64 signature; | |
60 | u32 revision; | |
61 | u32 headersize; | |
62 | u32 crc32; | |
63 | u32 reserved; | |
64 | } efi_table_hdr_t; | |
65 | ||
66 | /* | |
67 | * Memory map descriptor: | |
68 | */ | |
69 | ||
70 | /* Memory types: */ | |
71 | #define EFI_RESERVED_TYPE 0 | |
72 | #define EFI_LOADER_CODE 1 | |
73 | #define EFI_LOADER_DATA 2 | |
74 | #define EFI_BOOT_SERVICES_CODE 3 | |
75 | #define EFI_BOOT_SERVICES_DATA 4 | |
76 | #define EFI_RUNTIME_SERVICES_CODE 5 | |
77 | #define EFI_RUNTIME_SERVICES_DATA 6 | |
78 | #define EFI_CONVENTIONAL_MEMORY 7 | |
79 | #define EFI_UNUSABLE_MEMORY 8 | |
80 | #define EFI_ACPI_RECLAIM_MEMORY 9 | |
81 | #define EFI_ACPI_MEMORY_NVS 10 | |
82 | #define EFI_MEMORY_MAPPED_IO 11 | |
83 | #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 | |
84 | #define EFI_PAL_CODE 13 | |
85 | #define EFI_MAX_MEMORY_TYPE 14 | |
86 | ||
87 | /* Attribute values: */ | |
88 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ | |
89 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ | |
90 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ | |
91 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ | |
92 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ | |
93 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ | |
94 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ | |
95 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ | |
96 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 | |
97 | ||
98 | #define EFI_PAGE_SHIFT 12 | |
99 | ||
1da177e4 LT |
100 | typedef struct { |
101 | u32 type; | |
102 | u32 pad; | |
103 | u64 phys_addr; | |
104 | u64 virt_addr; | |
105 | u64 num_pages; | |
106 | u64 attribute; | |
1da177e4 LT |
107 | } efi_memory_desc_t; |
108 | ||
3b370237 MG |
109 | typedef struct { |
110 | efi_guid_t guid; | |
111 | u32 headersize; | |
112 | u32 flags; | |
113 | u32 imagesize; | |
114 | } efi_capsule_header_t; | |
115 | ||
bb05e4ba MF |
116 | /* |
117 | * Allocation types for calls to boottime->allocate_pages. | |
118 | */ | |
119 | #define EFI_ALLOCATE_ANY_PAGES 0 | |
120 | #define EFI_ALLOCATE_MAX_ADDRESS 1 | |
121 | #define EFI_ALLOCATE_ADDRESS 2 | |
122 | #define EFI_MAX_ALLOCATE_TYPE 3 | |
123 | ||
e088a4ad | 124 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); |
1da177e4 LT |
125 | |
126 | /* | |
127 | * Types and defines for Time Services | |
128 | */ | |
129 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 | |
130 | #define EFI_TIME_IN_DAYLIGHT 0x2 | |
131 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff | |
132 | ||
133 | typedef struct { | |
134 | u16 year; | |
135 | u8 month; | |
136 | u8 day; | |
137 | u8 hour; | |
138 | u8 minute; | |
139 | u8 second; | |
140 | u8 pad1; | |
141 | u32 nanosecond; | |
142 | s16 timezone; | |
143 | u8 daylight; | |
144 | u8 pad2; | |
145 | } efi_time_t; | |
146 | ||
147 | typedef struct { | |
148 | u32 resolution; | |
149 | u32 accuracy; | |
150 | u8 sets_to_zero; | |
151 | } efi_time_cap_t; | |
152 | ||
f30ca6ba MF |
153 | /* |
154 | * EFI Boot Services table | |
155 | */ | |
156 | typedef struct { | |
157 | efi_table_hdr_t hdr; | |
158 | void *raise_tpl; | |
159 | void *restore_tpl; | |
160 | void *allocate_pages; | |
161 | void *free_pages; | |
162 | void *get_memory_map; | |
163 | void *allocate_pool; | |
164 | void *free_pool; | |
165 | void *create_event; | |
166 | void *set_timer; | |
167 | void *wait_for_event; | |
168 | void *signal_event; | |
169 | void *close_event; | |
170 | void *check_event; | |
171 | void *install_protocol_interface; | |
172 | void *reinstall_protocol_interface; | |
173 | void *uninstall_protocol_interface; | |
174 | void *handle_protocol; | |
175 | void *__reserved; | |
176 | void *register_protocol_notify; | |
177 | void *locate_handle; | |
178 | void *locate_device_path; | |
179 | void *install_configuration_table; | |
180 | void *load_image; | |
181 | void *start_image; | |
182 | void *exit; | |
183 | void *unload_image; | |
184 | void *exit_boot_services; | |
185 | void *get_next_monotonic_count; | |
186 | void *stall; | |
187 | void *set_watchdog_timer; | |
188 | void *connect_controller; | |
189 | void *disconnect_controller; | |
190 | void *open_protocol; | |
191 | void *close_protocol; | |
192 | void *open_protocol_information; | |
193 | void *protocols_per_handle; | |
194 | void *locate_handle_buffer; | |
195 | void *locate_protocol; | |
196 | void *install_multiple_protocol_interfaces; | |
197 | void *uninstall_multiple_protocol_interfaces; | |
198 | void *calculate_crc32; | |
199 | void *copy_mem; | |
200 | void *set_mem; | |
201 | void *create_event_ex; | |
202 | } efi_boot_services_t; | |
203 | ||
1da177e4 LT |
204 | /* |
205 | * Types and defines for EFI ResetSystem | |
206 | */ | |
207 | #define EFI_RESET_COLD 0 | |
208 | #define EFI_RESET_WARM 1 | |
209 | #define EFI_RESET_SHUTDOWN 2 | |
210 | ||
211 | /* | |
212 | * EFI Runtime Services table | |
213 | */ | |
214 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) | |
215 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 | |
216 | ||
217 | typedef struct { | |
218 | efi_table_hdr_t hdr; | |
219 | unsigned long get_time; | |
220 | unsigned long set_time; | |
221 | unsigned long get_wakeup_time; | |
222 | unsigned long set_wakeup_time; | |
223 | unsigned long set_virtual_address_map; | |
224 | unsigned long convert_pointer; | |
225 | unsigned long get_variable; | |
226 | unsigned long get_next_variable; | |
227 | unsigned long set_variable; | |
228 | unsigned long get_next_high_mono_count; | |
229 | unsigned long reset_system; | |
3b370237 MG |
230 | unsigned long update_capsule; |
231 | unsigned long query_capsule_caps; | |
232 | unsigned long query_variable_info; | |
1da177e4 LT |
233 | } efi_runtime_services_t; |
234 | ||
235 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); | |
236 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); | |
237 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, | |
238 | efi_time_t *tm); | |
239 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); | |
240 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, | |
241 | unsigned long *data_size, void *data); | |
242 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, | |
243 | efi_guid_t *vendor); | |
244 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, | |
f7a2d73f | 245 | u32 attr, unsigned long data_size, |
1da177e4 LT |
246 | void *data); |
247 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); | |
248 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, | |
249 | unsigned long data_size, efi_char16_t *data); | |
250 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, | |
251 | unsigned long descriptor_size, | |
252 | u32 descriptor_version, | |
253 | efi_memory_desc_t *virtual_map); | |
3b370237 MG |
254 | typedef efi_status_t efi_query_variable_info_t(u32 attr, |
255 | u64 *storage_space, | |
256 | u64 *remaining_space, | |
257 | u64 *max_variable_size); | |
258 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, | |
259 | unsigned long count, | |
260 | unsigned long sg_list); | |
261 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, | |
262 | unsigned long count, | |
263 | u64 *max_size, | |
264 | int *reset_type); | |
1da177e4 LT |
265 | |
266 | /* | |
267 | * EFI Configuration Table and GUID definitions | |
268 | */ | |
269 | #define NULL_GUID \ | |
270 | EFI_GUID( 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ) | |
271 | ||
272 | #define MPS_TABLE_GUID \ | |
273 | EFI_GUID( 0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
274 | ||
275 | #define ACPI_TABLE_GUID \ | |
276 | EFI_GUID( 0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
277 | ||
278 | #define ACPI_20_TABLE_GUID \ | |
279 | EFI_GUID( 0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 ) | |
280 | ||
281 | #define SMBIOS_TABLE_GUID \ | |
282 | EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
283 | ||
284 | #define SAL_SYSTEM_TABLE_GUID \ | |
285 | EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
286 | ||
287 | #define HCDP_TABLE_GUID \ | |
288 | EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 ) | |
289 | ||
290 | #define UGA_IO_PROTOCOL_GUID \ | |
291 | EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 ) | |
292 | ||
293 | #define EFI_GLOBAL_VARIABLE_GUID \ | |
294 | EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c ) | |
295 | ||
a50f70b1 RA |
296 | #define UV_SYSTEM_TABLE_GUID \ |
297 | EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) | |
298 | ||
5ee9c198 MG |
299 | #define LINUX_EFI_CRASH_GUID \ |
300 | EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 ) | |
301 | ||
8e84f345 MF |
302 | #define LOADED_IMAGE_PROTOCOL_GUID \ |
303 | EFI_GUID( 0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
304 | ||
0f7c5d47 MF |
305 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \ |
306 | EFI_GUID( 0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a ) | |
307 | ||
308 | #define EFI_UGA_PROTOCOL_GUID \ | |
309 | EFI_GUID( 0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 ) | |
310 | ||
311 | #define EFI_PCI_IO_PROTOCOL_GUID \ | |
312 | EFI_GUID( 0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a ) | |
313 | ||
55839d51 MF |
314 | #define EFI_FILE_INFO_ID \ |
315 | EFI_GUID( 0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
316 | ||
317 | #define EFI_FILE_SYSTEM_GUID \ | |
318 | EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
319 | ||
1adbfa35 OJ |
320 | typedef struct { |
321 | efi_guid_t guid; | |
322 | u64 table; | |
323 | } efi_config_table_64_t; | |
324 | ||
325 | typedef struct { | |
326 | efi_guid_t guid; | |
327 | u32 table; | |
328 | } efi_config_table_32_t; | |
329 | ||
1da177e4 LT |
330 | typedef struct { |
331 | efi_guid_t guid; | |
332 | unsigned long table; | |
333 | } efi_config_table_t; | |
334 | ||
335 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) | |
1da177e4 | 336 | |
3b370237 MG |
337 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
338 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) | |
339 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) | |
340 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) | |
341 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) | |
342 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) | |
343 | ||
1adbfa35 OJ |
344 | typedef struct { |
345 | efi_table_hdr_t hdr; | |
346 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
347 | u32 fw_revision; | |
348 | u32 __pad1; | |
349 | u64 con_in_handle; | |
350 | u64 con_in; | |
351 | u64 con_out_handle; | |
352 | u64 con_out; | |
353 | u64 stderr_handle; | |
354 | u64 stderr; | |
355 | u64 runtime; | |
356 | u64 boottime; | |
357 | u32 nr_tables; | |
358 | u32 __pad2; | |
359 | u64 tables; | |
360 | } efi_system_table_64_t; | |
361 | ||
362 | typedef struct { | |
363 | efi_table_hdr_t hdr; | |
364 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
365 | u32 fw_revision; | |
366 | u32 con_in_handle; | |
367 | u32 con_in; | |
368 | u32 con_out_handle; | |
369 | u32 con_out; | |
370 | u32 stderr_handle; | |
371 | u32 stderr; | |
372 | u32 runtime; | |
373 | u32 boottime; | |
374 | u32 nr_tables; | |
375 | u32 tables; | |
376 | } efi_system_table_32_t; | |
377 | ||
1da177e4 LT |
378 | typedef struct { |
379 | efi_table_hdr_t hdr; | |
380 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ | |
381 | u32 fw_revision; | |
382 | unsigned long con_in_handle; | |
383 | unsigned long con_in; | |
384 | unsigned long con_out_handle; | |
385 | unsigned long con_out; | |
386 | unsigned long stderr_handle; | |
387 | unsigned long stderr; | |
388 | efi_runtime_services_t *runtime; | |
f30ca6ba | 389 | efi_boot_services_t *boottime; |
1da177e4 LT |
390 | unsigned long nr_tables; |
391 | unsigned long tables; | |
392 | } efi_system_table_t; | |
393 | ||
394 | struct efi_memory_map { | |
7ae65fd3 MT |
395 | void *phys_map; |
396 | void *map; | |
397 | void *map_end; | |
1da177e4 LT |
398 | int nr_map; |
399 | unsigned long desc_version; | |
7ae65fd3 | 400 | unsigned long desc_size; |
1da177e4 LT |
401 | }; |
402 | ||
8e84f345 MF |
403 | typedef struct { |
404 | u32 revision; | |
405 | void *parent_handle; | |
406 | efi_system_table_t *system_table; | |
407 | void *device_handle; | |
408 | void *file_path; | |
409 | void *reserved; | |
410 | u32 load_options_size; | |
411 | void *load_options; | |
412 | void *image_base; | |
413 | __aligned_u64 image_size; | |
414 | unsigned int image_code_type; | |
415 | unsigned int image_data_type; | |
416 | unsigned long unload; | |
417 | } efi_loaded_image_t; | |
418 | ||
55839d51 MF |
419 | typedef struct { |
420 | u64 revision; | |
421 | void *open_volume; | |
422 | } efi_file_io_interface_t; | |
423 | ||
424 | typedef struct { | |
425 | u64 size; | |
426 | u64 file_size; | |
427 | u64 phys_size; | |
428 | efi_time_t create_time; | |
429 | efi_time_t last_access_time; | |
430 | efi_time_t modification_time; | |
431 | __aligned_u64 attribute; | |
432 | efi_char16_t filename[1]; | |
433 | } efi_file_info_t; | |
434 | ||
435 | typedef struct { | |
436 | u64 revision; | |
437 | void *open; | |
438 | void *close; | |
439 | void *delete; | |
440 | void *read; | |
441 | void *write; | |
442 | void *get_position; | |
443 | void *set_position; | |
444 | void *get_info; | |
445 | void *set_info; | |
446 | void *flush; | |
447 | } efi_file_handle_t; | |
448 | ||
449 | #define EFI_FILE_MODE_READ 0x0000000000000001 | |
450 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 | |
451 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 | |
452 | ||
b2c99e3c BH |
453 | #define EFI_INVALID_TABLE_ADDR (~0UL) |
454 | ||
1da177e4 LT |
455 | /* |
456 | * All runtime access to EFI goes through this structure: | |
457 | */ | |
458 | extern struct efi { | |
459 | efi_system_table_t *systab; /* EFI system table */ | |
3b370237 | 460 | unsigned int runtime_version; /* Runtime services version */ |
b2c99e3c BH |
461 | unsigned long mps; /* MPS table */ |
462 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ | |
463 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ | |
464 | unsigned long smbios; /* SM BIOS table */ | |
465 | unsigned long sal_systab; /* SAL system table */ | |
466 | unsigned long boot_info; /* boot info table */ | |
467 | unsigned long hcdp; /* HCDP table */ | |
468 | unsigned long uga; /* UGA table */ | |
a50f70b1 | 469 | unsigned long uv_systab; /* UV system table */ |
1da177e4 LT |
470 | efi_get_time_t *get_time; |
471 | efi_set_time_t *set_time; | |
472 | efi_get_wakeup_time_t *get_wakeup_time; | |
473 | efi_set_wakeup_time_t *set_wakeup_time; | |
474 | efi_get_variable_t *get_variable; | |
475 | efi_get_next_variable_t *get_next_variable; | |
476 | efi_set_variable_t *set_variable; | |
3b370237 MG |
477 | efi_query_variable_info_t *query_variable_info; |
478 | efi_update_capsule_t *update_capsule; | |
479 | efi_query_capsule_caps_t *query_capsule_caps; | |
1da177e4 LT |
480 | efi_get_next_high_mono_count_t *get_next_high_mono_count; |
481 | efi_reset_system_t *reset_system; | |
482 | efi_set_virtual_address_map_t *set_virtual_address_map; | |
483 | } efi; | |
484 | ||
485 | static inline int | |
486 | efi_guidcmp (efi_guid_t left, efi_guid_t right) | |
487 | { | |
488 | return memcmp(&left, &right, sizeof (efi_guid_t)); | |
489 | } | |
490 | ||
491 | static inline char * | |
492 | efi_guid_unparse(efi_guid_t *guid, char *out) | |
493 | { | |
925ede0b | 494 | sprintf(out, "%pUl", guid->b); |
1da177e4 LT |
495 | return out; |
496 | } | |
497 | ||
498 | extern void efi_init (void); | |
499 | extern void *efi_get_pal_addr (void); | |
500 | extern void efi_map_pal_code (void); | |
1da177e4 LT |
501 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); |
502 | extern void efi_gettimeofday (struct timespec *ts); | |
503 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ | |
78510792 | 504 | #ifdef CONFIG_X86 |
2223af38 | 505 | extern void efi_late_init(void); |
78510792 JT |
506 | extern void efi_free_boot_services(void); |
507 | #else | |
2223af38 | 508 | static inline void efi_late_init(void) {} |
78510792 JT |
509 | static inline void efi_free_boot_services(void) {} |
510 | #endif | |
7bc90e01 | 511 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); |
1da177e4 LT |
512 | extern u64 efi_get_iobase (void); |
513 | extern u32 efi_mem_type (unsigned long phys_addr); | |
514 | extern u64 efi_mem_attributes (unsigned long phys_addr); | |
32e62c63 | 515 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); |
1da177e4 LT |
516 | extern int __init efi_uart_console_only (void); |
517 | extern void efi_initialize_iomem_resources(struct resource *code_resource, | |
00bf4098 | 518 | struct resource *data_resource, struct resource *bss_resource); |
f026cfa8 PA |
519 | extern unsigned long efi_get_time(void); |
520 | extern int efi_set_rtc_mmss(unsigned long nowtime); | |
916f676f | 521 | extern void efi_reserve_boot_services(void); |
1da177e4 LT |
522 | extern struct efi_memory_map memmap; |
523 | ||
524 | /** | |
525 | * efi_range_is_wc - check the WC bit on an address range | |
526 | * @start: starting kvirt address | |
527 | * @len: length of range | |
528 | * | |
529 | * Consult the EFI memory map and make sure it's ok to set this range WC. | |
530 | * Returns true or false. | |
531 | */ | |
532 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) | |
533 | { | |
986a80d5 | 534 | unsigned long i; |
1da177e4 LT |
535 | |
536 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { | |
537 | unsigned long paddr = __pa(start + i); | |
538 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) | |
539 | return 0; | |
540 | } | |
541 | /* The range checked out */ | |
542 | return 1; | |
543 | } | |
544 | ||
545 | #ifdef CONFIG_EFI_PCDP | |
546 | extern int __init efi_setup_pcdp_console(char *); | |
547 | #endif | |
548 | ||
549 | /* | |
550 | * We play games with efi_enabled so that the compiler will, if possible, remove | |
551 | * EFI-related code altogether. | |
552 | */ | |
553 | #ifdef CONFIG_EFI | |
554 | # ifdef CONFIG_X86 | |
555 | extern int efi_enabled; | |
1adbfa35 | 556 | extern bool efi_64bit; |
1da177e4 LT |
557 | # else |
558 | # define efi_enabled 1 | |
559 | # endif | |
560 | #else | |
561 | # define efi_enabled 0 | |
562 | #endif | |
563 | ||
564 | /* | |
565 | * Variable Attributes | |
566 | */ | |
567 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 | |
568 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 | |
569 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 | |
41b3254c MG |
570 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 |
571 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 | |
572 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 | |
573 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 | |
574 | ||
575 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ | |
576 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ | |
577 | EFI_VARIABLE_RUNTIME_ACCESS | \ | |
578 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ | |
579 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ | |
580 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ | |
581 | EFI_VARIABLE_APPEND_WRITE) | |
e2527a7c MF |
582 | /* |
583 | * The type of search to perform when calling boottime->locate_handle | |
584 | */ | |
585 | #define EFI_LOCATE_ALL_HANDLES 0 | |
586 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 | |
587 | #define EFI_LOCATE_BY_PROTOCOL 2 | |
588 | ||
1da177e4 LT |
589 | /* |
590 | * EFI Device Path information | |
591 | */ | |
592 | #define EFI_DEV_HW 0x01 | |
593 | #define EFI_DEV_PCI 1 | |
594 | #define EFI_DEV_PCCARD 2 | |
595 | #define EFI_DEV_MEM_MAPPED 3 | |
596 | #define EFI_DEV_VENDOR 4 | |
597 | #define EFI_DEV_CONTROLLER 5 | |
598 | #define EFI_DEV_ACPI 0x02 | |
599 | #define EFI_DEV_BASIC_ACPI 1 | |
600 | #define EFI_DEV_EXPANDED_ACPI 2 | |
601 | #define EFI_DEV_MSG 0x03 | |
602 | #define EFI_DEV_MSG_ATAPI 1 | |
603 | #define EFI_DEV_MSG_SCSI 2 | |
604 | #define EFI_DEV_MSG_FC 3 | |
605 | #define EFI_DEV_MSG_1394 4 | |
606 | #define EFI_DEV_MSG_USB 5 | |
607 | #define EFI_DEV_MSG_USB_CLASS 15 | |
608 | #define EFI_DEV_MSG_I20 6 | |
609 | #define EFI_DEV_MSG_MAC 11 | |
610 | #define EFI_DEV_MSG_IPV4 12 | |
611 | #define EFI_DEV_MSG_IPV6 13 | |
612 | #define EFI_DEV_MSG_INFINIBAND 9 | |
613 | #define EFI_DEV_MSG_UART 14 | |
614 | #define EFI_DEV_MSG_VENDOR 10 | |
615 | #define EFI_DEV_MEDIA 0x04 | |
616 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 | |
617 | #define EFI_DEV_MEDIA_CDROM 2 | |
618 | #define EFI_DEV_MEDIA_VENDOR 3 | |
619 | #define EFI_DEV_MEDIA_FILE 4 | |
620 | #define EFI_DEV_MEDIA_PROTOCOL 5 | |
621 | #define EFI_DEV_BIOS_BOOT 0x05 | |
622 | #define EFI_DEV_END_PATH 0x7F | |
623 | #define EFI_DEV_END_PATH2 0xFF | |
624 | #define EFI_DEV_END_INSTANCE 0x01 | |
625 | #define EFI_DEV_END_ENTIRE 0xFF | |
626 | ||
627 | struct efi_generic_dev_path { | |
628 | u8 type; | |
629 | u8 sub_type; | |
630 | u16 length; | |
631 | } __attribute ((packed)); | |
632 | ||
4a3575fd HY |
633 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) |
634 | { | |
635 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); | |
636 | *addr &= PAGE_MASK; | |
637 | } | |
638 | ||
4fc756bd MW |
639 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) |
640 | /* | |
641 | * EFI Variable support. | |
642 | * | |
643 | * Different firmware drivers can expose their EFI-like variables using | |
644 | * the following. | |
645 | */ | |
646 | ||
647 | struct efivar_operations { | |
648 | efi_get_variable_t *get_variable; | |
649 | efi_get_next_variable_t *get_next_variable; | |
650 | efi_set_variable_t *set_variable; | |
651 | }; | |
652 | ||
653 | struct efivars { | |
654 | /* | |
655 | * ->lock protects two things: | |
656 | * 1) ->list - adds, removals, reads, writes | |
657 | * 2) ops.[gs]et_variable() calls. | |
658 | * It must not be held when creating sysfs entries or calling kmalloc. | |
659 | * ops.get_next_variable() is only called from register_efivars(), | |
660 | * which is protected by the BKL, so that path is safe. | |
661 | */ | |
662 | spinlock_t lock; | |
663 | struct list_head list; | |
664 | struct kset *kset; | |
665 | struct bin_attribute *new_var, *del_var; | |
666 | const struct efivar_operations *ops; | |
5ee9c198 MG |
667 | struct efivar_entry *walk_entry; |
668 | struct pstore_info efi_pstore_info; | |
4fc756bd MW |
669 | }; |
670 | ||
671 | int register_efivars(struct efivars *efivars, | |
672 | const struct efivar_operations *ops, | |
673 | struct kobject *parent_kobj); | |
674 | void unregister_efivars(struct efivars *efivars); | |
675 | ||
676 | #endif /* CONFIG_EFI_VARS */ | |
677 | ||
1da177e4 | 678 | #endif /* _LINUX_EFI_H */ |