ia64/xen-unstable

view xen/include/asm-ia64/linux-xen/linux/efi.h @ 17886:cfbc535ebf6f

[IA64] efi: remove old efi code to copmile newer linux acpi code.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jun 11 16:57:42 2008 +0900 (2008-06-11)
parents 4108c2589fd1
children 4d5de1e4d85a
line source
1 #ifndef _LINUX_EFI_H
2 #define _LINUX_EFI_H
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>
22 #include <asm/page.h>
23 #include <asm/system.h>
25 #ifdef XEN
26 extern void * pal_vaddr;
27 #endif
29 #define EFI_SUCCESS 0
30 #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1)))
31 #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1)))
32 #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1)))
33 #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1)))
34 #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1)))
35 #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1)))
37 typedef unsigned long efi_status_t;
38 typedef u8 efi_bool_t;
39 typedef u16 efi_char16_t; /* UNICODE character */
42 typedef struct {
43 u8 b[16];
44 } efi_guid_t;
46 #define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
47 ((efi_guid_t) \
48 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
49 (b) & 0xff, ((b) >> 8) & 0xff, \
50 (c) & 0xff, ((c) >> 8) & 0xff, \
51 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
53 /*
54 * Generic EFI table header
55 */
56 typedef struct {
57 u64 signature;
58 u32 revision;
59 u32 headersize;
60 u32 crc32;
61 u32 reserved;
62 } efi_table_hdr_t;
64 /*
65 * Memory map descriptor:
66 */
68 /* Memory types: */
69 #define EFI_RESERVED_TYPE 0
70 #define EFI_LOADER_CODE 1
71 #define EFI_LOADER_DATA 2
72 #define EFI_BOOT_SERVICES_CODE 3
73 #define EFI_BOOT_SERVICES_DATA 4
74 #define EFI_RUNTIME_SERVICES_CODE 5
75 #define EFI_RUNTIME_SERVICES_DATA 6
76 #define EFI_CONVENTIONAL_MEMORY 7
77 #define EFI_UNUSABLE_MEMORY 8
78 #define EFI_ACPI_RECLAIM_MEMORY 9
79 #define EFI_ACPI_MEMORY_NVS 10
80 #define EFI_MEMORY_MAPPED_IO 11
81 #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12
82 #define EFI_PAL_CODE 13
83 #define EFI_MAX_MEMORY_TYPE 14
85 /* Attribute values: */
86 #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */
87 #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */
88 #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */
89 #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */
90 #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
91 #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
92 #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
93 #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
94 #define EFI_MEMORY_DESCRIPTOR_VERSION 1
96 #define EFI_PAGE_SHIFT 12
98 typedef struct {
99 u32 type;
100 u32 pad;
101 u64 phys_addr;
102 u64 virt_addr;
103 u64 num_pages;
104 u64 attribute;
105 } efi_memory_desc_t;
107 typedef int (*efi_freemem_callback_t) (unsigned long start, unsigned long end, void *arg);
109 /*
110 * Types and defines for Time Services
111 */
112 #define EFI_TIME_ADJUST_DAYLIGHT 0x1
113 #define EFI_TIME_IN_DAYLIGHT 0x2
114 #define EFI_UNSPECIFIED_TIMEZONE 0x07ff
116 typedef struct {
117 u16 year;
118 u8 month;
119 u8 day;
120 u8 hour;
121 u8 minute;
122 u8 second;
123 u8 pad1;
124 u32 nanosecond;
125 s16 timezone;
126 u8 daylight;
127 u8 pad2;
128 } efi_time_t;
130 typedef struct {
131 u32 resolution;
132 u32 accuracy;
133 u8 sets_to_zero;
134 } efi_time_cap_t;
136 /*
137 * Types and defines for EFI ResetSystem
138 */
139 #define EFI_RESET_COLD 0
140 #define EFI_RESET_WARM 1
141 #define EFI_RESET_SHUTDOWN 2
143 /*
144 * EFI Runtime Services table
145 */
146 #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL)
147 #define EFI_RUNTIME_SERVICES_REVISION 0x00010000
149 typedef struct {
150 efi_table_hdr_t hdr;
151 unsigned long get_time;
152 unsigned long set_time;
153 unsigned long get_wakeup_time;
154 unsigned long set_wakeup_time;
155 unsigned long set_virtual_address_map;
156 unsigned long convert_pointer;
157 unsigned long get_variable;
158 unsigned long get_next_variable;
159 unsigned long set_variable;
160 unsigned long get_next_high_mono_count;
161 unsigned long reset_system;
162 } efi_runtime_services_t;
164 typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
165 typedef efi_status_t efi_set_time_t (efi_time_t *tm);
166 typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
167 efi_time_t *tm);
168 typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);
169 typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
170 unsigned long *data_size, void *data);
171 typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
172 efi_guid_t *vendor);
173 typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
174 unsigned long attr, unsigned long data_size,
175 void *data);
176 typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
177 typedef void efi_reset_system_t (int reset_type, efi_status_t status,
178 unsigned long data_size, efi_char16_t *data);
179 typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
180 unsigned long descriptor_size,
181 u32 descriptor_version,
182 efi_memory_desc_t *virtual_map);
184 /*
185 * EFI Configuration Table and GUID definitions
186 */
187 #define NULL_GUID \
188 EFI_GUID( 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 )
190 #define MPS_TABLE_GUID \
191 EFI_GUID( 0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
193 #define ACPI_TABLE_GUID \
194 EFI_GUID( 0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
196 #define ACPI_20_TABLE_GUID \
197 EFI_GUID( 0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 )
199 #define SMBIOS_TABLE_GUID \
200 EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
202 #define SAL_SYSTEM_TABLE_GUID \
203 EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
205 #define HCDP_TABLE_GUID \
206 EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 )
208 #define UGA_IO_PROTOCOL_GUID \
209 EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 )
211 #define EFI_GLOBAL_VARIABLE_GUID \
212 EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c )
214 typedef struct {
215 efi_guid_t guid;
216 unsigned long table;
217 } efi_config_table_t;
219 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
220 #define EFI_SYSTEM_TABLE_REVISION ((1 << 16) | 00)
222 typedef struct {
223 efi_table_hdr_t hdr;
224 unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */
225 u32 fw_revision;
226 unsigned long con_in_handle;
227 unsigned long con_in;
228 unsigned long con_out_handle;
229 unsigned long con_out;
230 unsigned long stderr_handle;
231 unsigned long stderr;
232 efi_runtime_services_t *runtime;
233 unsigned long boottime;
234 unsigned long nr_tables;
235 unsigned long tables;
236 } efi_system_table_t;
238 struct efi_memory_map {
239 #ifndef XEN
240 void *phys_map;
241 void *map;
242 #else
243 efi_memory_desc_t *phys_map;
244 efi_memory_desc_t *map;
245 #endif
246 void *map_end;
247 int nr_map;
248 unsigned long desc_version;
249 unsigned long desc_size;
250 };
252 #define EFI_INVALID_TABLE_ADDR (~0UL)
254 /*
255 * All runtime access to EFI goes through this structure:
256 */
257 extern struct efi {
258 efi_system_table_t *systab; /* EFI system table */
259 unsigned long mps; /* MPS table */
260 unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
261 unsigned long acpi20; /* ACPI table (ACPI 2.0) */
262 unsigned long smbios; /* SM BIOS table */
263 unsigned long sal_systab; /* SAL system table */
264 unsigned long boot_info; /* boot info table */
265 unsigned long hcdp; /* HCDP table */
266 unsigned long uga; /* UGA table */
267 efi_get_time_t *get_time;
268 efi_set_time_t *set_time;
269 efi_get_wakeup_time_t *get_wakeup_time;
270 efi_set_wakeup_time_t *set_wakeup_time;
271 efi_get_variable_t *get_variable;
272 efi_get_next_variable_t *get_next_variable;
273 efi_set_variable_t *set_variable;
274 efi_get_next_high_mono_count_t *get_next_high_mono_count;
275 efi_reset_system_t *reset_system;
276 efi_set_virtual_address_map_t *set_virtual_address_map;
277 } efi;
279 static inline int
280 efi_guidcmp (efi_guid_t left, efi_guid_t right)
281 {
282 return memcmp(&left, &right, sizeof (efi_guid_t));
283 }
285 static inline char *
286 efi_guid_unparse(efi_guid_t *guid, char *out)
287 {
288 #ifndef XEN
289 sprintf(out, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
290 #else
291 snprintf(out, 37, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
292 #endif
293 guid->b[3], guid->b[2], guid->b[1], guid->b[0],
294 guid->b[5], guid->b[4], guid->b[7], guid->b[6],
295 guid->b[8], guid->b[9], guid->b[10], guid->b[11],
296 guid->b[12], guid->b[13], guid->b[14], guid->b[15]);
297 return out;
298 }
300 extern void efi_init (void);
301 extern void *efi_get_pal_addr (void);
302 extern void efi_map_pal_code (void);
303 extern void efi_map_memmap(void);
304 extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
305 extern void efi_gettimeofday (struct timespec *ts);
306 extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */
307 extern u64 efi_get_iobase (void);
308 extern u32 efi_mem_type (unsigned long phys_addr);
309 extern u64 efi_mem_attributes (unsigned long phys_addr);
310 extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
311 extern int efi_mem_attribute_range (unsigned long phys_addr, unsigned long size,
312 u64 attr);
313 extern int __init efi_uart_console_only (void);
314 extern void efi_initialize_iomem_resources(struct resource *code_resource,
315 struct resource *data_resource);
316 extern unsigned long efi_get_time(void);
317 extern int efi_set_rtc_mmss(unsigned long nowtime);
318 extern int is_available_memory(efi_memory_desc_t * md);
319 extern struct efi_memory_map memmap;
321 /**
322 * efi_range_is_wc - check the WC bit on an address range
323 * @start: starting kvirt address
324 * @len: length of range
325 *
326 * Consult the EFI memory map and make sure it's ok to set this range WC.
327 * Returns true or false.
328 */
329 static inline int efi_range_is_wc(unsigned long start, unsigned long len)
330 {
331 unsigned long i;
333 for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) {
334 unsigned long paddr = __pa(start + i);
335 if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC))
336 return 0;
337 }
338 /* The range checked out */
339 return 1;
340 }
342 #ifdef CONFIG_EFI_PCDP
343 extern int __init efi_setup_pcdp_console(char *);
344 #endif
346 /*
347 * We play games with efi_enabled so that the compiler will, if possible, remove
348 * EFI-related code altogether.
349 */
350 #ifdef CONFIG_EFI
351 # ifdef CONFIG_X86
352 extern int efi_enabled;
353 # else
354 # define efi_enabled 1
355 # endif
356 #else
357 # define efi_enabled 0
358 #endif
360 /*
361 * Variable Attributes
362 */
363 #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
364 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
365 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
367 /*
368 * EFI Device Path information
369 */
370 #define EFI_DEV_HW 0x01
371 #define EFI_DEV_PCI 1
372 #define EFI_DEV_PCCARD 2
373 #define EFI_DEV_MEM_MAPPED 3
374 #define EFI_DEV_VENDOR 4
375 #define EFI_DEV_CONTROLLER 5
376 #define EFI_DEV_ACPI 0x02
377 #define EFI_DEV_BASIC_ACPI 1
378 #define EFI_DEV_EXPANDED_ACPI 2
379 #define EFI_DEV_MSG 0x03
380 #define EFI_DEV_MSG_ATAPI 1
381 #define EFI_DEV_MSG_SCSI 2
382 #define EFI_DEV_MSG_FC 3
383 #define EFI_DEV_MSG_1394 4
384 #define EFI_DEV_MSG_USB 5
385 #define EFI_DEV_MSG_USB_CLASS 15
386 #define EFI_DEV_MSG_I20 6
387 #define EFI_DEV_MSG_MAC 11
388 #define EFI_DEV_MSG_IPV4 12
389 #define EFI_DEV_MSG_IPV6 13
390 #define EFI_DEV_MSG_INFINIBAND 9
391 #define EFI_DEV_MSG_UART 14
392 #define EFI_DEV_MSG_VENDOR 10
393 #define EFI_DEV_MEDIA 0x04
394 #define EFI_DEV_MEDIA_HARD_DRIVE 1
395 #define EFI_DEV_MEDIA_CDROM 2
396 #define EFI_DEV_MEDIA_VENDOR 3
397 #define EFI_DEV_MEDIA_FILE 4
398 #define EFI_DEV_MEDIA_PROTOCOL 5
399 #define EFI_DEV_BIOS_BOOT 0x05
400 #define EFI_DEV_END_PATH 0x7F
401 #define EFI_DEV_END_PATH2 0xFF
402 #define EFI_DEV_END_INSTANCE 0x01
403 #define EFI_DEV_END_ENTIRE 0xFF
405 struct efi_generic_dev_path {
406 u8 type;
407 u8 sub_type;
408 u16 length;
409 } __attribute ((packed));
411 #endif /* _LINUX_EFI_H */