diff options
Diffstat (limited to 'nvkm/subdev/volt/base.c')
| -rw-r--r-- | nvkm/subdev/volt/base.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/nvkm/subdev/volt/base.c b/nvkm/subdev/volt/base.c deleted file mode 100644 index 26ccd8df1..000000000 --- a/nvkm/subdev/volt/base.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * Copyright 2013 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 <subdev/volt.h> - -#include <subdev/bios.h> -#include <subdev/bios/vmap.h> -#include <subdev/bios/volt.h> - -static int -nouveau_volt_get(struct nouveau_volt *volt) -{ - if (volt->vid_get) { - int ret = volt->vid_get(volt), i; - if (ret >= 0) { - for (i = 0; i < volt->vid_nr; i++) { - if (volt->vid[i].vid == ret) - return volt->vid[i].uv; - } - ret = -EINVAL; - } - return ret; - } - return -ENODEV; -} - -static int -nouveau_volt_set(struct nouveau_volt *volt, u32 uv) -{ - if (volt->vid_set) { - int i, ret = -EINVAL; - for (i = 0; i < volt->vid_nr; i++) { - if (volt->vid[i].uv == uv) { - ret = volt->vid_set(volt, volt->vid[i].vid); - nv_debug(volt, "set %duv: %d\n", uv, ret); - break; - } - } - return ret; - } - return -ENODEV; -} - -static int -nouveau_volt_map(struct nouveau_volt *volt, u8 id) -{ - struct nouveau_bios *bios = nouveau_bios(volt); - struct nvbios_vmap_entry info; - u8 ver, len; - u16 vmap; - - vmap = nvbios_vmap_entry_parse(bios, id, &ver, &len, &info); - if (vmap) { - if (info.link != 0xff) { - int ret = nouveau_volt_map(volt, info.link); - if (ret < 0) - return ret; - info.min += ret; - } - return info.min; - } - - return id ? id * 10000 : -ENODEV; -} - -static int -nouveau_volt_set_id(struct nouveau_volt *volt, u8 id, int condition) -{ - int ret = nouveau_volt_map(volt, id); - if (ret >= 0) { - int prev = nouveau_volt_get(volt); - if (!condition || prev < 0 || - (condition < 0 && ret < prev) || - (condition > 0 && ret > prev)) { - ret = nouveau_volt_set(volt, ret); - } else { - ret = 0; - } - } - return ret; -} - -static void nouveau_volt_parse_bios(struct nouveau_bios *bios, - struct nouveau_volt *volt) -{ - struct nvbios_volt_entry ivid; - struct nvbios_volt info; - u8 ver, hdr, cnt, len; - u16 data; - int i; - - data = nvbios_volt_parse(bios, &ver, &hdr, &cnt, &len, &info); - if (data && info.vidmask && info.base && info.step) { - for (i = 0; i < info.vidmask + 1; i++) { - if (info.base >= info.min && - info.base <= info.max) { - volt->vid[volt->vid_nr].uv = info.base; - volt->vid[volt->vid_nr].vid = i; - volt->vid_nr++; - } - info.base += info.step; - } - volt->vid_mask = info.vidmask; - } else if (data && info.vidmask) { - for (i = 0; i < cnt; i++) { - data = nvbios_volt_entry_parse(bios, i, &ver, &hdr, - &ivid); - if (data) { - volt->vid[volt->vid_nr].uv = ivid.voltage; - volt->vid[volt->vid_nr].vid = ivid.vid; - volt->vid_nr++; - } - } - volt->vid_mask = info.vidmask; - } -} - -int -_nouveau_volt_init(struct nouveau_object *object) -{ - struct nouveau_volt *volt = (void *)object; - int ret; - - ret = nouveau_subdev_init(&volt->base); - if (ret) - return ret; - - ret = volt->get(volt); - if (ret < 0) { - if (ret != -ENODEV) - nv_debug(volt, "current voltage unknown\n"); - return 0; - } - - nv_info(volt, "GPU voltage: %duv\n", ret); - return 0; -} - -void -_nouveau_volt_dtor(struct nouveau_object *object) -{ - struct nouveau_volt *volt = (void *)object; - nouveau_subdev_destroy(&volt->base); -} - -int -nouveau_volt_create_(struct nouveau_object *parent, - struct nouveau_object *engine, - struct nouveau_oclass *oclass, int length, void **pobject) -{ - struct nouveau_bios *bios = nouveau_bios(parent); - struct nouveau_volt *volt; - int ret, i; - - ret = nouveau_subdev_create_(parent, engine, oclass, 0, "VOLT", - "voltage", length, pobject); - volt = *pobject; - if (ret) - return ret; - - volt->get = nouveau_volt_get; - volt->set = nouveau_volt_set; - volt->set_id = nouveau_volt_set_id; - - /* Assuming the non-bios device should build the voltage table later */ - if (bios) - nouveau_volt_parse_bios(bios, volt); - - if (volt->vid_nr) { - for (i = 0; i < volt->vid_nr; i++) { - nv_debug(volt, "VID %02x: %duv\n", - volt->vid[i].vid, volt->vid[i].uv); - } - - /*XXX: this is an assumption.. there probably exists boards - * out there with i2c-connected voltage controllers too.. - */ - ret = nouveau_voltgpio_init(volt); - if (ret == 0) { - volt->vid_get = nouveau_voltgpio_get; - volt->vid_set = nouveau_voltgpio_set; - } - } - - return ret; -} |