1 /** @file
2   Coreboot PEI module include file.
3 
4   Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
5   This program and the accompanying materials
6   are licensed and made available under the terms and conditions of the BSD License
7   which accompanies this distribution.  The full text of the license may be found at
8   http://opensource.org/licenses/bsd-license.php
9 
10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13 **/
14 
15 /*
16  * This file is part of the libpayload project.
17  *
18  * Copyright (C) 2008 Advanced Micro Devices, Inc.
19  *
20  * Redistribution and use in source and binary forms, with or without
21  * modification, are permitted provided that the following conditions
22  * are met:
23  * 1. Redistributions of source code must retain the above copyright
24  *    notice, this list of conditions and the following disclaimer.
25  * 2. Redistributions in binary form must reproduce the above copyright
26  *    notice, this list of conditions and the following disclaimer in the
27  *    documentation and/or other materials provided with the distribution.
28  * 3. The name of the author may not be used to endorse or promote products
29  *    derived from this software without specific prior written permission.
30  *
31  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
32  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
35  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41  * SUCH DAMAGE.
42  */
43 
44 
45 #ifndef _COREBOOT_PEI_H_INCLUDED_
46 #define _COREBOOT_PEI_H_INCLUDED_
47 
48 #if defined(_MSC_VER)
49 #pragma warning( disable : 4200 )
50 #endif
51 
52 #define DYN_CBMEM_ALIGN_SIZE (4096)
53 
54 #define IMD_ENTRY_MAGIC      (~0xC0389481)
55 #define CBMEM_ENTRY_MAGIC    (~0xC0389479)
56 
57 struct cbmem_entry {
58   UINT32 magic;
59   UINT32 start;
60   UINT32 size;
61   UINT32 id;
62 };
63 
64 struct cbmem_root {
65   UINT32 max_entries;
66   UINT32 num_entries;
67   UINT32 locked;
68   UINT32 size;
69   struct cbmem_entry entries[0];
70 };
71 
72 struct imd_entry {
73   UINT32 magic;
74   UINT32 start_offset;
75   UINT32 size;
76   UINT32 id;
77 };
78 
79 struct imd_root {
80   UINT32 max_entries;
81   UINT32 num_entries;
82   UINT32 flags;
83   UINT32 entry_align;
84   UINT32 max_offset;
85   struct imd_entry entries[0];
86 };
87 
88 struct cbuint64 {
89   UINT32 lo;
90   UINT32 hi;
91 };
92 
93 #define CB_HEADER_SIGNATURE 0x4F49424C
94 
95 struct cb_header {
96   UINT32 signature;
97   UINT32 header_bytes;
98   UINT32 header_checksum;
99   UINT32 table_bytes;
100   UINT32 table_checksum;
101   UINT32 table_entries;
102 };
103 
104 struct cb_record {
105   UINT32 tag;
106   UINT32 size;
107 };
108 
109 #define CB_TAG_UNUSED     0x0000
110 #define CB_TAG_MEMORY     0x0001
111 
112 struct cb_memory_range {
113   struct cbuint64 start;
114   struct cbuint64 size;
115   UINT32 type;
116 };
117 
118 #define CB_MEM_RAM    1
119 #define CB_MEM_RESERVED     2
120 #define CB_MEM_ACPI   3
121 #define CB_MEM_NVS    4
122 #define CB_MEM_UNUSABLE     5
123 #define CB_MEM_VENDOR_RSVD  6
124 #define CB_MEM_TABLE       16
125 
126 struct cb_memory {
127   UINT32 tag;
128   UINT32 size;
129   struct cb_memory_range map[0];
130 };
131 
132 #define CB_TAG_MAINBOARD  0x0003
133 
134 struct cb_mainboard {
135   UINT32 tag;
136   UINT32 size;
137   UINT8 vendor_idx;
138   UINT8 part_number_idx;
139   UINT8 strings[0];
140 };
141 #define CB_TAG_VERSION  0x0004
142 #define CB_TAG_EXTRA_VERSION  0x0005
143 #define CB_TAG_BUILD    0x0006
144 #define CB_TAG_COMPILE_TIME   0x0007
145 #define CB_TAG_COMPILE_BY     0x0008
146 #define CB_TAG_COMPILE_HOST   0x0009
147 #define CB_TAG_COMPILE_DOMAIN 0x000a
148 #define CB_TAG_COMPILER       0x000b
149 #define CB_TAG_LINKER   0x000c
150 #define CB_TAG_ASSEMBLER      0x000d
151 
152 struct cb_string {
153   UINT32 tag;
154   UINT32 size;
155   UINT8 string[0];
156 };
157 
158 #define CB_TAG_SERIAL   0x000f
159 
160 struct cb_serial {
161   UINT32 tag;
162   UINT32 size;
163 #define CB_SERIAL_TYPE_IO_MAPPED     1
164 #define CB_SERIAL_TYPE_MEMORY_MAPPED 2
165   UINT32 type;
166   UINT32 baseaddr;
167   UINT32 baud;
168 };
169 
170 #define CB_TAG_CONSOLE       0x00010
171 
172 struct cb_console {
173   UINT32 tag;
174   UINT32 size;
175   UINT16 type;
176 };
177 
178 #define CB_TAG_CONSOLE_SERIAL8250 0
179 #define CB_TAG_CONSOLE_VGA  1 // OBSOLETE
180 #define CB_TAG_CONSOLE_BTEXT      2 // OBSOLETE
181 #define CB_TAG_CONSOLE_LOGBUF     3
182 #define CB_TAG_CONSOLE_SROM       4 // OBSOLETE
183 #define CB_TAG_CONSOLE_EHCI       5
184 
185 #define CB_TAG_FORWARD       0x00011
186 
187 struct cb_forward {
188   UINT32 tag;
189   UINT32 size;
190   UINT64 forward;
191 };
192 
193 #define CB_TAG_FRAMEBUFFER      0x0012
194 struct cb_framebuffer {
195   UINT32 tag;
196   UINT32 size;
197 
198   UINT64 physical_address;
199   UINT32 x_resolution;
200   UINT32 y_resolution;
201   UINT32 bytes_per_line;
202   UINT8 bits_per_pixel;
203   UINT8 red_mask_pos;
204   UINT8 red_mask_size;
205   UINT8 green_mask_pos;
206   UINT8 green_mask_size;
207   UINT8 blue_mask_pos;
208   UINT8 blue_mask_size;
209   UINT8 reserved_mask_pos;
210   UINT8 reserved_mask_size;
211 };
212 
213 #define CB_TAG_VDAT     0x0015
214 struct cb_vdat {
215   UINT32 tag;
216   UINT32 size;  /* size of the entire entry */
217   UINT64 vdat_addr;
218   UINT32 vdat_size;
219 };
220 
221 #define CB_TAG_TIMESTAMPS       0x0016
222 #define CB_TAG_CBMEM_CONSOLE    0x0017
223 #define CB_TAG_MRC_CACHE  0x0018
224 struct cb_cbmem_tab {
225   UINT32 tag;
226   UINT32 size;
227   UINT64 cbmem_tab;
228 };
229 
230 /* Helpful macros */
231 
232 #define MEM_RANGE_COUNT(_rec) \
233   (((_rec)->size - sizeof(*(_rec))) / sizeof((_rec)->map[0]))
234 
235 #define MEM_RANGE_PTR(_rec, _idx) \
236   (void *)(((UINT8 *) (_rec)) + sizeof(*(_rec)) \
237     + (sizeof((_rec)->map[0]) * (_idx)))
238 
239 
240 #endif // _COREBOOT_PEI_H_INCLUDED_
241