xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/atom.h (revision 2a598d0b)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Author: Stanislaw Skowronek
23  */
24 
25 #ifndef ATOM_H
26 #define ATOM_H
27 
28 #include <linux/types.h>
29 
30 struct drm_device;
31 
32 #define ATOM_BIOS_MAGIC		0xAA55
33 #define ATOM_ATI_MAGIC_PTR	0x30
34 #define ATOM_ATI_MAGIC		" 761295520"
35 #define ATOM_ROM_TABLE_PTR	0x48
36 #define ATOM_ROM_PART_NUMBER_PTR	0x6E
37 
38 #define ATOM_ROM_MAGIC		"ATOM"
39 #define ATOM_ROM_MAGIC_PTR	4
40 
41 #define ATOM_ROM_MSG_PTR	0x10
42 #define ATOM_ROM_CMD_PTR	0x1E
43 #define ATOM_ROM_DATA_PTR	0x20
44 
45 #define ATOM_CMD_INIT		0
46 #define ATOM_CMD_SETSCLK	0x0A
47 #define ATOM_CMD_SETMCLK	0x0B
48 #define ATOM_CMD_SETPCLK	0x0C
49 #define ATOM_CMD_SPDFANCNTL	0x39
50 
51 #define ATOM_DATA_FWI_PTR	0xC
52 #define ATOM_DATA_IIO_PTR	0x32
53 
54 #define ATOM_FWI_DEFSCLK_PTR	8
55 #define ATOM_FWI_DEFMCLK_PTR	0xC
56 #define ATOM_FWI_MAXSCLK_PTR	0x24
57 #define ATOM_FWI_MAXMCLK_PTR	0x28
58 
59 #define ATOM_CT_SIZE_PTR	0
60 #define ATOM_CT_WS_PTR		4
61 #define ATOM_CT_PS_PTR		5
62 #define ATOM_CT_PS_MASK		0x7F
63 #define ATOM_CT_CODE_PTR	6
64 
65 #define ATOM_OP_CNT		127
66 #define ATOM_OP_EOT		91
67 
68 #define ATOM_CASE_MAGIC		0x63
69 #define ATOM_CASE_END		0x5A5A
70 
71 #define ATOM_ARG_REG		0
72 #define ATOM_ARG_PS		1
73 #define ATOM_ARG_WS		2
74 #define ATOM_ARG_FB		3
75 #define ATOM_ARG_ID		4
76 #define ATOM_ARG_IMM		5
77 #define ATOM_ARG_PLL		6
78 #define ATOM_ARG_MC		7
79 
80 #define ATOM_SRC_DWORD		0
81 #define ATOM_SRC_WORD0		1
82 #define ATOM_SRC_WORD8		2
83 #define ATOM_SRC_WORD16		3
84 #define ATOM_SRC_BYTE0		4
85 #define ATOM_SRC_BYTE8		5
86 #define ATOM_SRC_BYTE16		6
87 #define ATOM_SRC_BYTE24		7
88 
89 #define ATOM_WS_QUOTIENT	0x40
90 #define ATOM_WS_REMAINDER	0x41
91 #define ATOM_WS_DATAPTR		0x42
92 #define ATOM_WS_SHIFT		0x43
93 #define ATOM_WS_OR_MASK		0x44
94 #define ATOM_WS_AND_MASK	0x45
95 #define ATOM_WS_FB_WINDOW	0x46
96 #define ATOM_WS_ATTRIBUTES	0x47
97 #define ATOM_WS_REGPTR		0x48
98 
99 #define ATOM_IIO_NOP		0
100 #define ATOM_IIO_START		1
101 #define ATOM_IIO_READ		2
102 #define ATOM_IIO_WRITE		3
103 #define ATOM_IIO_CLEAR		4
104 #define ATOM_IIO_SET		5
105 #define ATOM_IIO_MOVE_INDEX	6
106 #define ATOM_IIO_MOVE_ATTR	7
107 #define ATOM_IIO_MOVE_DATA	8
108 #define ATOM_IIO_END		9
109 
110 #define ATOM_IO_MM		0
111 #define ATOM_IO_PCI		1
112 #define ATOM_IO_SYSIO		2
113 #define ATOM_IO_IIO		0x80
114 
115 #define STRLEN_NORMAL		32
116 #define STRLEN_LONG		64
117 #define STRLEN_VERYLONG		254
118 
119 struct card_info {
120 	struct drm_device *dev;
121 	void (* reg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
122 	uint32_t (* reg_read)(struct card_info *, uint32_t);          /*  filled by driver */
123 	void (* mc_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
124 	uint32_t (* mc_read)(struct card_info *, uint32_t);          /*  filled by driver */
125 	void (* pll_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
126 	uint32_t (* pll_read)(struct card_info *, uint32_t);          /*  filled by driver */
127 };
128 
129 struct atom_context {
130 	struct card_info *card;
131 	struct mutex mutex;
132 	void *bios;
133 	uint32_t cmd_table, data_table;
134 	uint16_t *iio;
135 
136 	uint16_t data_block;
137 	uint32_t fb_base;
138 	uint32_t divmul[2];
139 	uint16_t io_attr;
140 	uint16_t reg_block;
141 	uint8_t shift;
142 	int cs_equal, cs_above;
143 	int io_mode;
144 	uint32_t *scratch;
145 	int scratch_size_bytes;
146 	char vbios_version[20];
147 
148 	uint8_t name[STRLEN_LONG];
149 	uint8_t vbios_pn[STRLEN_LONG];
150 	uint32_t version;
151 	uint8_t vbios_ver_str[STRLEN_NORMAL];
152 	uint8_t date[STRLEN_NORMAL];
153 };
154 
155 extern int amdgpu_atom_debug;
156 
157 struct atom_context *amdgpu_atom_parse(struct card_info *, void *);
158 int amdgpu_atom_execute_table(struct atom_context *, int, uint32_t *);
159 int amdgpu_atom_asic_init(struct atom_context *);
160 void amdgpu_atom_destroy(struct atom_context *);
161 bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index, uint16_t *size,
162 			    uint8_t *frev, uint8_t *crev, uint16_t *data_start);
163 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index,
164 			   uint8_t *frev, uint8_t *crev);
165 #include "atom-types.h"
166 #include "atombios.h"
167 #include "ObjectID.h"
168 
169 #endif
170