2 * Copyright 2014 Red Hat Inc.
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: Ben Skeggs <bskeggs@redhat.com>
24 #include <subdev/bios.h>
25 #include <subdev/bios/bit.h>
26 #include <subdev/bios/image.h>
27 #include <subdev/bios/pmu.h>
30 weirdo_pointer(struct nvkm_bios *bios, u32 data)
32 struct nvbios_image image;
34 if (nvbios_image(bios, idx++, &image)) {
36 while (nvbios_image(bios, idx++, &image)) {
37 if (image.type == 0xe0)
38 return image.base + data;
45 nvbios_pmuTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
47 struct bit_entry bit_p;
50 if (!bit_entry(bios, 'p', &bit_p)) {
51 if (bit_p.version == 2 && bit_p.length >= 4)
52 data = nvbios_rd32(bios, bit_p.offset + 0x00);
53 if ((data = weirdo_pointer(bios, data))) {
54 *ver = nvbios_rd08(bios, data + 0x00); /* maybe? */
55 *hdr = nvbios_rd08(bios, data + 0x01);
56 *len = nvbios_rd08(bios, data + 0x02);
57 *cnt = nvbios_rd08(bios, data + 0x03);
65 nvbios_pmuEe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr)
68 u32 data = nvbios_pmuTe(bios, ver, hdr, &cnt, &len);
69 if (data && idx < cnt) {
70 data = data + *hdr + (idx * len);
78 nvbios_pmuEp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr,
79 struct nvbios_pmuE *info)
81 u32 data = nvbios_pmuEe(bios, idx, ver, hdr);
82 memset(info, 0x00, sizeof(*info));
83 switch (!!data * *ver) {
85 info->type = nvbios_rd08(bios, data + 0x00);
86 info->data = nvbios_rd32(bios, data + 0x02);
93 nvbios_pmuRm(struct nvkm_bios *bios, u8 type, struct nvbios_pmuR *info)
95 struct nvbios_pmuE pmuE;
98 memset(info, 0x00, sizeof(*info));
99 while ((data = nvbios_pmuEp(bios, idx++, &ver, &hdr, &pmuE))) {
100 if ( pmuE.type == type &&
101 (data = weirdo_pointer(bios, pmuE.data))) {
102 info->init_addr_pmu = nvbios_rd32(bios, data + 0x08);
103 info->args_addr_pmu = nvbios_rd32(bios, data + 0x0c);
104 info->boot_addr = data + 0x30;
105 info->boot_addr_pmu = nvbios_rd32(bios, data + 0x10) +
106 nvbios_rd32(bios, data + 0x18);
107 info->boot_size = nvbios_rd32(bios, data + 0x1c) -
108 nvbios_rd32(bios, data + 0x18);
109 info->code_addr = info->boot_addr + info->boot_size;
110 info->code_addr_pmu = info->boot_addr_pmu +
112 info->code_size = nvbios_rd32(bios, data + 0x20);
113 info->data_addr = data + 0x30 +
114 nvbios_rd32(bios, data + 0x24);
115 info->data_addr_pmu = nvbios_rd32(bios, data + 0x28);
116 info->data_size = nvbios_rd32(bios, data + 0x2c);