From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c | 134 +++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c') diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c new file mode 100644 index 000000000..20c5ce0cd --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pmu.c @@ -0,0 +1,134 @@ +/* + * 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 nvkm_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 nvkm_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 nvkm_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 nvkm_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 nvkm_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 nvkm_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 1.2.3-korg