2 * Copyright 2012 Nouveau Community
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Martin Peres
24 #include <subdev/bios.h>
25 #include <subdev/bios/bit.h>
26 #include <subdev/bios/vmap.h>
29 nvbios_vmap_table(struct nvkm_bios
*bios
, u8
*ver
, u8
*hdr
, u8
*cnt
, u8
*len
)
31 struct bit_entry bit_P
;
34 if (!bit_entry(bios
, 'P', &bit_P
)) {
35 if (bit_P
.version
== 2) {
36 vmap
= nvbios_rd32(bios
, bit_P
.offset
+ 0x20);
38 *ver
= nvbios_rd08(bios
, vmap
+ 0);
42 *hdr
= nvbios_rd08(bios
, vmap
+ 1);
43 *cnt
= nvbios_rd08(bios
, vmap
+ 3);
44 *len
= nvbios_rd08(bios
, vmap
+ 2);
57 nvbios_vmap_parse(struct nvkm_bios
*bios
, u8
*ver
, u8
*hdr
, u8
*cnt
, u8
*len
,
58 struct nvbios_vmap
*info
)
60 u32 vmap
= nvbios_vmap_table(bios
, ver
, hdr
, cnt
, len
);
61 memset(info
, 0x00, sizeof(*info
));
62 switch (!!vmap
* *ver
) {
69 info
->max0
= nvbios_rd08(bios
, vmap
+ 0x7);
70 info
->max1
= nvbios_rd08(bios
, vmap
+ 0x8);
72 info
->max2
= nvbios_rd08(bios
, vmap
+ 0xc);
81 nvbios_vmap_entry(struct nvkm_bios
*bios
, int idx
, u8
*ver
, u8
*len
)
84 u32 vmap
= nvbios_vmap_table(bios
, ver
, &hdr
, &cnt
, len
);
85 if (vmap
&& idx
< cnt
) {
86 vmap
= vmap
+ hdr
+ (idx
* *len
);
93 nvbios_vmap_entry_parse(struct nvkm_bios
*bios
, int idx
, u8
*ver
, u8
*len
,
94 struct nvbios_vmap_entry
*info
)
96 u32 vmap
= nvbios_vmap_entry(bios
, idx
, ver
, len
);
97 memset(info
, 0x00, sizeof(*info
));
98 switch (!!vmap
* *ver
) {
101 info
->min
= nvbios_rd32(bios
, vmap
+ 0x00);
102 info
->max
= nvbios_rd32(bios
, vmap
+ 0x04);
103 info
->arg
[0] = nvbios_rd32(bios
, vmap
+ 0x08);
104 info
->arg
[1] = nvbios_rd32(bios
, vmap
+ 0x0c);
105 info
->arg
[2] = nvbios_rd32(bios
, vmap
+ 0x10);
108 info
->mode
= nvbios_rd08(bios
, vmap
+ 0x00);
109 info
->link
= nvbios_rd08(bios
, vmap
+ 0x01);
110 info
->min
= nvbios_rd32(bios
, vmap
+ 0x02);
111 info
->max
= nvbios_rd32(bios
, vmap
+ 0x06);
112 info
->arg
[0] = nvbios_rd32(bios
, vmap
+ 0x0a);
113 info
->arg
[1] = nvbios_rd32(bios
, vmap
+ 0x0e);
114 info
->arg
[2] = nvbios_rd32(bios
, vmap
+ 0x12);
115 info
->arg
[3] = nvbios_rd32(bios
, vmap
+ 0x16);
116 info
->arg
[4] = nvbios_rd32(bios
, vmap
+ 0x1a);
117 info
->arg
[5] = nvbios_rd32(bios
, vmap
+ 0x1e);