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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
329 lines
8.1 KiB
C
329 lines
8.1 KiB
C
/*
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* Copyright 2013 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
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*/
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#include "priv.h"
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#include <subdev/bios.h>
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#include <subdev/bios/vmap.h>
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#include <subdev/bios/volt.h>
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#include <subdev/therm.h>
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int
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nvkm_volt_get(struct nvkm_volt *volt)
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{
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int ret, i;
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if (volt->func->volt_get)
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return volt->func->volt_get(volt);
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ret = volt->func->vid_get(volt);
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if (ret >= 0) {
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for (i = 0; i < volt->vid_nr; i++) {
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if (volt->vid[i].vid == ret)
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return volt->vid[i].uv;
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}
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ret = -EINVAL;
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}
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return ret;
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}
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static int
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nvkm_volt_set(struct nvkm_volt *volt, u32 uv)
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{
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struct nvkm_subdev *subdev = &volt->subdev;
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int i, ret = -EINVAL, best_err = volt->max_uv, best = -1;
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if (volt->func->volt_set)
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return volt->func->volt_set(volt, uv);
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for (i = 0; i < volt->vid_nr; i++) {
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int err = volt->vid[i].uv - uv;
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if (err < 0 || err > best_err)
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continue;
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best_err = err;
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best = i;
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if (best_err == 0)
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break;
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}
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if (best == -1) {
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nvkm_error(subdev, "couldn't set %iuv\n", uv);
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return ret;
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}
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ret = volt->func->vid_set(volt, volt->vid[best].vid);
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nvkm_debug(subdev, "set req %duv to %duv: %d\n", uv,
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volt->vid[best].uv, ret);
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return ret;
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}
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int
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nvkm_volt_map_min(struct nvkm_volt *volt, u8 id)
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{
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struct nvkm_bios *bios = volt->subdev.device->bios;
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struct nvbios_vmap_entry info;
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u8 ver, len;
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u32 vmap;
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vmap = nvbios_vmap_entry_parse(bios, id, &ver, &len, &info);
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if (vmap) {
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if (info.link != 0xff) {
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int ret = nvkm_volt_map_min(volt, info.link);
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if (ret < 0)
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return ret;
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info.min += ret;
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}
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return info.min;
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}
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return id ? id * 10000 : -ENODEV;
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}
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int
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nvkm_volt_map(struct nvkm_volt *volt, u8 id, u8 temp)
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{
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struct nvkm_bios *bios = volt->subdev.device->bios;
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struct nvbios_vmap_entry info;
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u8 ver, len;
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u32 vmap;
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vmap = nvbios_vmap_entry_parse(bios, id, &ver, &len, &info);
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if (vmap) {
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s64 result;
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if (volt->speedo < 0)
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return volt->speedo;
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if (ver == 0x10 || (ver == 0x20 && info.mode == 0)) {
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result = div64_s64((s64)info.arg[0], 10);
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result += div64_s64((s64)info.arg[1] * volt->speedo, 10);
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result += div64_s64((s64)info.arg[2] * volt->speedo * volt->speedo, 100000);
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} else if (ver == 0x20) {
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switch (info.mode) {
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/* 0x0 handled above! */
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case 0x1:
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result = ((s64)info.arg[0] * 15625) >> 18;
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result += ((s64)info.arg[1] * volt->speedo * 15625) >> 18;
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result += ((s64)info.arg[2] * temp * 15625) >> 10;
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result += ((s64)info.arg[3] * volt->speedo * temp * 15625) >> 18;
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result += ((s64)info.arg[4] * volt->speedo * volt->speedo * 15625) >> 30;
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result += ((s64)info.arg[5] * temp * temp * 15625) >> 18;
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break;
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case 0x3:
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result = (info.min + info.max) / 2;
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break;
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case 0x2:
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default:
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result = info.min;
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break;
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}
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} else {
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return -ENODEV;
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}
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result = clamp(result, (s64)info.min, (s64)info.max);
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if (info.link != 0xff) {
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int ret = nvkm_volt_map(volt, info.link, temp);
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if (ret < 0)
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return ret;
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result += ret;
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}
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return result;
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}
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return id ? id * 10000 : -ENODEV;
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}
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int
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nvkm_volt_set_id(struct nvkm_volt *volt, u8 id, u8 min_id, u8 temp,
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int condition)
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{
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int ret;
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if (volt->func->set_id)
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return volt->func->set_id(volt, id, condition);
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ret = nvkm_volt_map(volt, id, temp);
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if (ret >= 0) {
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int prev = nvkm_volt_get(volt);
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if (!condition || prev < 0 ||
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(condition < 0 && ret < prev) ||
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(condition > 0 && ret > prev)) {
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int min = nvkm_volt_map(volt, min_id, temp);
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if (min >= 0)
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ret = max(min, ret);
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ret = nvkm_volt_set(volt, ret);
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} else {
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ret = 0;
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}
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}
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return ret;
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}
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static void
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nvkm_volt_parse_bios(struct nvkm_bios *bios, struct nvkm_volt *volt)
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{
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struct nvkm_subdev *subdev = &bios->subdev;
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struct nvbios_volt_entry ivid;
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struct nvbios_volt info;
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u8 ver, hdr, cnt, len;
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u32 data;
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int i;
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data = nvbios_volt_parse(bios, &ver, &hdr, &cnt, &len, &info);
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if (data && info.vidmask && info.base && info.step && info.ranged) {
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nvkm_debug(subdev, "found ranged based VIDs\n");
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volt->min_uv = info.min;
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volt->max_uv = info.max;
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for (i = 0; i < info.vidmask + 1; i++) {
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if (info.base >= info.min &&
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info.base <= info.max) {
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volt->vid[volt->vid_nr].uv = info.base;
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volt->vid[volt->vid_nr].vid = i;
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volt->vid_nr++;
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}
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info.base += info.step;
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}
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volt->vid_mask = info.vidmask;
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} else if (data && info.vidmask && !info.ranged) {
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nvkm_debug(subdev, "found entry based VIDs\n");
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volt->min_uv = 0xffffffff;
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volt->max_uv = 0;
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for (i = 0; i < cnt; i++) {
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data = nvbios_volt_entry_parse(bios, i, &ver, &hdr,
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&ivid);
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if (data) {
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volt->vid[volt->vid_nr].uv = ivid.voltage;
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volt->vid[volt->vid_nr].vid = ivid.vid;
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volt->vid_nr++;
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volt->min_uv = min(volt->min_uv, ivid.voltage);
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volt->max_uv = max(volt->max_uv, ivid.voltage);
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}
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}
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volt->vid_mask = info.vidmask;
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} else if (data && info.type == NVBIOS_VOLT_PWM) {
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volt->min_uv = info.base;
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volt->max_uv = info.base + info.pwm_range;
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}
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}
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static int
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nvkm_volt_speedo_read(struct nvkm_volt *volt)
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{
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if (volt->func->speedo_read)
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return volt->func->speedo_read(volt);
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return -EINVAL;
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}
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static int
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nvkm_volt_init(struct nvkm_subdev *subdev)
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{
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struct nvkm_volt *volt = nvkm_volt(subdev);
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int ret = nvkm_volt_get(volt);
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if (ret < 0) {
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if (ret != -ENODEV)
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nvkm_debug(subdev, "current voltage unknown\n");
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return 0;
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}
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nvkm_debug(subdev, "current voltage: %duv\n", ret);
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return 0;
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}
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static int
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nvkm_volt_oneinit(struct nvkm_subdev *subdev)
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{
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struct nvkm_volt *volt = nvkm_volt(subdev);
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volt->speedo = nvkm_volt_speedo_read(volt);
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if (volt->speedo > 0)
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nvkm_debug(&volt->subdev, "speedo %x\n", volt->speedo);
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if (volt->func->oneinit)
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return volt->func->oneinit(volt);
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return 0;
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}
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static void *
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nvkm_volt_dtor(struct nvkm_subdev *subdev)
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{
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return nvkm_volt(subdev);
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}
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static const struct nvkm_subdev_func
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nvkm_volt = {
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.dtor = nvkm_volt_dtor,
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.init = nvkm_volt_init,
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.oneinit = nvkm_volt_oneinit,
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};
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void
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nvkm_volt_ctor(const struct nvkm_volt_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_volt *volt)
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{
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struct nvkm_bios *bios = device->bios;
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int i;
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nvkm_subdev_ctor(&nvkm_volt, device, type, inst, &volt->subdev);
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volt->func = func;
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/* Assuming the non-bios device should build the voltage table later */
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if (bios) {
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u8 ver, hdr, cnt, len;
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struct nvbios_vmap vmap;
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nvkm_volt_parse_bios(bios, volt);
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nvkm_debug(&volt->subdev, "min: %iuv max: %iuv\n",
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volt->min_uv, volt->max_uv);
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if (nvbios_vmap_parse(bios, &ver, &hdr, &cnt, &len, &vmap)) {
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volt->max0_id = vmap.max0;
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volt->max1_id = vmap.max1;
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volt->max2_id = vmap.max2;
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} else {
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volt->max0_id = 0xff;
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volt->max1_id = 0xff;
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volt->max2_id = 0xff;
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}
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}
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if (volt->vid_nr) {
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for (i = 0; i < volt->vid_nr; i++) {
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nvkm_debug(&volt->subdev, "VID %02x: %duv\n",
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volt->vid[i].vid, volt->vid[i].uv);
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}
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}
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}
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int
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nvkm_volt_new_(const struct nvkm_volt_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_volt **pvolt)
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{
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if (!(*pvolt = kzalloc_obj(**pvolt)))
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return -ENOMEM;
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nvkm_volt_ctor(func, device, type, inst, *pvolt);
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return 0;
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}
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