From 562dbfc15ce0ef5db71f76715d544c62f0d70c7b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 22 Sep 2014 12:30:57 +1000 Subject: bios: add parsing of pmu image tables Signed-off-by: Ben Skeggs --- nvkm/include/subdev/bios/pmu.h | 37 +++++++++++ nvkm/subdev/bios/Makefile.am | 1 + nvkm/subdev/bios/pmu.c | 135 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 173 insertions(+) create mode 100644 nvkm/include/subdev/bios/pmu.h create mode 100644 nvkm/subdev/bios/pmu.c (limited to 'nvkm') diff --git a/nvkm/include/subdev/bios/pmu.h b/nvkm/include/subdev/bios/pmu.h new file mode 100644 index 000000000..9de593dea --- /dev/null +++ b/nvkm/include/subdev/bios/pmu.h @@ -0,0 +1,37 @@ +#ifndef __NVBIOS_PMU_H__ +#define __NVBIOS_PMU_H__ + +struct nvbios_pmuT { +}; + +u32 nvbios_pmuTe(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len); +u32 nvbios_pmuTp(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, + struct nvbios_pmuT *); + +struct nvbios_pmuE { + u8 type; + u32 data; +}; + +u32 nvbios_pmuEe(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr); +u32 nvbios_pmuEp(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr, + struct nvbios_pmuE *); + +struct nvbios_pmuR { + u32 boot_addr_pmu; + u32 boot_addr; + u32 boot_size; + u32 code_addr_pmu; + u32 code_addr; + u32 code_size; + u32 init_addr_pmu; + + u32 data_addr_pmu; + u32 data_addr; + u32 data_size; + u32 args_addr_pmu; +}; + +bool nvbios_pmuRm(struct nouveau_bios *, u8 type, struct nvbios_pmuR *); + +#endif diff --git a/nvkm/subdev/bios/Makefile.am b/nvkm/subdev/bios/Makefile.am index ddd168387..3d2bf45f5 100644 --- a/nvkm/subdev/bios/Makefile.am +++ b/nvkm/subdev/bios/Makefile.am @@ -19,6 +19,7 @@ libbios_la_SOURCES = base.c \ pcir.c \ perf.c \ pll.c \ + pmu.c \ ramcfg.c \ rammap.c \ shadow.c \ diff --git a/nvkm/subdev/bios/pmu.c b/nvkm/subdev/bios/pmu.c new file mode 100644 index 000000000..66c56ba07 --- /dev/null +++ b/nvkm/subdev/bios/pmu.c @@ -0,0 +1,135 @@ +/* + * Copyright 2014 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#include +#include +#include +#include + +static u32 +weirdo_pointer(struct nouveau_bios *bios, u32 data) +{ + struct nvbios_image image; + int idx = 0; + if (nvbios_image(bios, idx++, &image)) { + data -= image.size; + while (nvbios_image(bios, idx++, &image)) { + if (image.type == 0xe0) + return image.base + data; + } + } + return 0; +} + +u32 +nvbios_pmuTe(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) +{ + struct bit_entry bit_p; + u32 data = 0; + + if (!bit_entry(bios, 'p', &bit_p)) { + if (bit_p.version == 2 && bit_p.length >= 4) + data = nv_ro32(bios, bit_p.offset + 0x00); + if ((data = weirdo_pointer(bios, data))) { + *ver = nv_ro08(bios, data + 0x00); /* maybe? */ + *hdr = nv_ro08(bios, data + 0x01); + *len = nv_ro08(bios, data + 0x02); + *cnt = nv_ro08(bios, data + 0x03); + } + } + + return data; +} + +u32 +nvbios_pmuTp(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, + struct nvbios_pmuT *info) +{ + u32 data = nvbios_pmuTe(bios, ver, hdr, cnt, len); + memset(info, 0x00, sizeof(*info)); + switch (!!data * *ver) { + default: + break; + } + return data; +} + +u32 +nvbios_pmuEe(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr) +{ + u8 cnt, len; + u32 data = nvbios_pmuTe(bios, ver, hdr, &cnt, &len); + if (data && idx < cnt) { + data = data + *hdr + (idx * len); + *hdr = len; + return data; + } + return 0; +} + +u32 +nvbios_pmuEp(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr, + struct nvbios_pmuE *info) +{ + u32 data = nvbios_pmuEe(bios, idx, ver, hdr); + memset(info, 0x00, sizeof(*info)); + switch (!!data * *ver) { + default: + info->type = nv_ro08(bios, data + 0x00); + info->data = nv_ro32(bios, data + 0x02); + break; + } + return data; +} + +bool +nvbios_pmuRm(struct nouveau_bios *bios, u8 type, struct nvbios_pmuR *info) +{ + struct nvbios_pmuE pmuE; + u8 ver, hdr, idx = 0; + u32 data; + memset(info, 0x00, sizeof(*info)); + while ((data = nvbios_pmuEp(bios, idx++, &ver, &hdr, &pmuE))) { + if ( pmuE.type == type && + (data = weirdo_pointer(bios, pmuE.data))) { + info->init_addr_pmu = nv_ro32(bios, data + 0x08); + info->args_addr_pmu = nv_ro32(bios, data + 0x0c); + info->boot_addr = data + 0x30; + info->boot_addr_pmu = nv_ro32(bios, data + 0x10) + + nv_ro32(bios, data + 0x18); + info->boot_size = nv_ro32(bios, data + 0x1c) - + nv_ro32(bios, data + 0x18); + info->code_addr = info->boot_addr + info->boot_size; + info->code_addr_pmu = info->boot_addr_pmu + + info->boot_size; + info->code_size = nv_ro32(bios, data + 0x20); + info->data_addr = data + 0x30 + + nv_ro32(bios, data + 0x24); + info->data_addr_pmu = nv_ro32(bios, data + 0x28); + info->data_size = nv_ro32(bios, data + 0x2c); + return true; + } + } + return false; +} -- cgit v1.2.1