103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
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/*
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* Copyright 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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#include <subdev/bios.h>
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#include <subdev/bios/bit.h>
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#include <subdev/bios/image.h>
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#include <subdev/bios/pmu.h>
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u32
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nvbios_pmuTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
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{
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struct bit_entry bit_p;
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u32 data = 0;
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if (!bit_entry(bios, 'p', &bit_p)) {
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if (bit_p.version == 2 && bit_p.length >= 4)
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data = nvbios_rd32(bios, bit_p.offset + 0x00);
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if (data) {
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*ver = nvbios_rd08(bios, data + 0x00); /* maybe? */
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*hdr = nvbios_rd08(bios, data + 0x01);
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*len = nvbios_rd08(bios, data + 0x02);
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*cnt = nvbios_rd08(bios, data + 0x03);
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}
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}
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return data;
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}
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u32
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nvbios_pmuEe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr)
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{
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u8 cnt, len;
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u32 data = nvbios_pmuTe(bios, ver, hdr, &cnt, &len);
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if (data && idx < cnt) {
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data = data + *hdr + (idx * len);
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*hdr = len;
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return data;
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}
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return 0;
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}
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u32
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nvbios_pmuEp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr,
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struct nvbios_pmuE *info)
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{
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u32 data = nvbios_pmuEe(bios, idx, ver, hdr);
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if (data) {
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info->type = nvbios_rd08(bios, data + 0x00);
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info->data = nvbios_rd32(bios, data + 0x02);
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}
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return data;
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}
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bool
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nvbios_pmuRm(struct nvkm_bios *bios, u8 type, struct nvbios_pmuR *info)
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{
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struct nvbios_pmuE pmuE;
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u8 ver, hdr, idx = 0;
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u32 data;
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memset(info, 0x00, sizeof(*info));
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while ((data = nvbios_pmuEp(bios, idx++, &ver, &hdr, &pmuE))) {
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if (pmuE.type == type && (data = pmuE.data)) {
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info->init_addr_pmu = nvbios_rd32(bios, data + 0x08);
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info->args_addr_pmu = nvbios_rd32(bios, data + 0x0c);
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info->boot_addr = data + 0x30;
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info->boot_addr_pmu = nvbios_rd32(bios, data + 0x10) +
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nvbios_rd32(bios, data + 0x18);
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info->boot_size = nvbios_rd32(bios, data + 0x1c) -
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nvbios_rd32(bios, data + 0x18);
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info->code_addr = info->boot_addr + info->boot_size;
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info->code_addr_pmu = info->boot_addr_pmu +
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info->boot_size;
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info->code_size = nvbios_rd32(bios, data + 0x20);
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info->data_addr = data + 0x30 +
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nvbios_rd32(bios, data + 0x24);
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info->data_addr_pmu = nvbios_rd32(bios, data + 0x28);
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info->data_size = nvbios_rd32(bios, data + 0x2c);
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return true;
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}
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}
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return false;
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}
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