diff options
Diffstat (limited to 'nvkm/subdev/clock/base.c')
| -rw-r--r-- | nvkm/subdev/clock/base.c | 600 |
1 files changed, 0 insertions, 600 deletions
diff --git a/nvkm/subdev/clock/base.c b/nvkm/subdev/clock/base.c deleted file mode 100644 index bc095b470..000000000 --- a/nvkm/subdev/clock/base.c +++ /dev/null @@ -1,600 +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 <core/option.h> - -#include <subdev/clock.h> -#include <subdev/therm.h> -#include <subdev/volt.h> -#include <subdev/fb.h> - -#include <subdev/bios.h> -#include <subdev/bios/boost.h> -#include <subdev/bios/cstep.h> -#include <subdev/bios/perf.h> - -/****************************************************************************** - * misc - *****************************************************************************/ -static u32 -nouveau_clock_adjust(struct nouveau_clock *clk, bool adjust, - u8 pstate, u8 domain, u32 input) -{ - struct nouveau_bios *bios = nouveau_bios(clk); - struct nvbios_boostE boostE; - u8 ver, hdr, cnt, len; - u16 data; - - data = nvbios_boostEm(bios, pstate, &ver, &hdr, &cnt, &len, &boostE); - if (data) { - struct nvbios_boostS boostS; - u8 idx = 0, sver, shdr; - u16 subd; - - input = max(boostE.min, input); - input = min(boostE.max, input); - do { - sver = ver; - shdr = hdr; - subd = nvbios_boostSp(bios, idx++, data, &sver, &shdr, - cnt, len, &boostS); - if (subd && boostS.domain == domain) { - if (adjust) - input = input * boostS.percent / 100; - input = max(boostS.min, input); - input = min(boostS.max, input); - break; - } - } while (subd); - } - - return input; -} - -/****************************************************************************** - * C-States - *****************************************************************************/ -static int -nouveau_cstate_prog(struct nouveau_clock *clk, - struct nouveau_pstate *pstate, int cstatei) -{ - struct nouveau_therm *ptherm = nouveau_therm(clk); - struct nouveau_volt *volt = nouveau_volt(clk); - struct nouveau_cstate *cstate; - int ret; - - if (!list_empty(&pstate->list)) { - cstate = list_entry(pstate->list.prev, typeof(*cstate), head); - } else { - cstate = &pstate->base; - } - - if (ptherm) { - ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, +1); - if (ret && ret != -ENODEV) { - nv_error(clk, "failed to raise fan speed: %d\n", ret); - return ret; - } - } - - if (volt) { - ret = volt->set_id(volt, cstate->voltage, +1); - if (ret && ret != -ENODEV) { - nv_error(clk, "failed to raise voltage: %d\n", ret); - return ret; - } - } - - ret = clk->calc(clk, cstate); - if (ret == 0) { - ret = clk->prog(clk); - clk->tidy(clk); - } - - if (volt) { - ret = volt->set_id(volt, cstate->voltage, -1); - if (ret && ret != -ENODEV) - nv_error(clk, "failed to lower voltage: %d\n", ret); - } - - if (ptherm) { - ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, -1); - if (ret && ret != -ENODEV) - nv_error(clk, "failed to lower fan speed: %d\n", ret); - } - - return 0; -} - -static void -nouveau_cstate_del(struct nouveau_cstate *cstate) -{ - list_del(&cstate->head); - kfree(cstate); -} - -static int -nouveau_cstate_new(struct nouveau_clock *clk, int idx, - struct nouveau_pstate *pstate) -{ - struct nouveau_bios *bios = nouveau_bios(clk); - struct nouveau_clocks *domain = clk->domains; - struct nouveau_cstate *cstate = NULL; - struct nvbios_cstepX cstepX; - u8 ver, hdr; - u16 data; - - data = nvbios_cstepXp(bios, idx, &ver, &hdr, &cstepX); - if (!data) - return -ENOENT; - - cstate = kzalloc(sizeof(*cstate), GFP_KERNEL); - if (!cstate) - return -ENOMEM; - - *cstate = pstate->base; - cstate->voltage = cstepX.voltage; - - while (domain && domain->name != nv_clk_src_max) { - if (domain->flags & NVKM_CLK_DOM_FLAG_CORE) { - u32 freq = nouveau_clock_adjust(clk, true, - pstate->pstate, - domain->bios, - cstepX.freq); - cstate->domain[domain->name] = freq; - } - domain++; - } - - list_add(&cstate->head, &pstate->list); - return 0; -} - -/****************************************************************************** - * P-States - *****************************************************************************/ -static int -nouveau_pstate_prog(struct nouveau_clock *clk, int pstatei) -{ - struct nouveau_fb *pfb = nouveau_fb(clk); - struct nouveau_pstate *pstate; - int ret, idx = 0; - - list_for_each_entry(pstate, &clk->states, head) { - if (idx++ == pstatei) - break; - } - - nv_debug(clk, "setting performance state %d\n", pstatei); - clk->pstate = pstatei; - - if (pfb->ram->calc) { - int khz = pstate->base.domain[nv_clk_src_mem]; - do { - ret = pfb->ram->calc(pfb, khz); - if (ret == 0) - ret = pfb->ram->prog(pfb); - } while (ret > 0); - pfb->ram->tidy(pfb); - } - - return nouveau_cstate_prog(clk, pstate, 0); -} - -static void -nouveau_pstate_work(struct work_struct *work) -{ - struct nouveau_clock *clk = container_of(work, typeof(*clk), work); - int pstate; - - if (!atomic_xchg(&clk->waiting, 0)) - return; - clk->pwrsrc = power_supply_is_system_supplied(); - - nv_trace(clk, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d D %d\n", - clk->pstate, clk->pwrsrc, clk->ustate_ac, clk->ustate_dc, - clk->astate, clk->tstate, clk->dstate); - - pstate = clk->pwrsrc ? clk->ustate_ac : clk->ustate_dc; - if (clk->state_nr && pstate != -1) { - pstate = (pstate < 0) ? clk->astate : pstate; - pstate = min(pstate, clk->state_nr - 1 - clk->tstate); - pstate = max(pstate, clk->dstate); - } else { - pstate = clk->pstate = -1; - } - - nv_trace(clk, "-> %d\n", pstate); - if (pstate != clk->pstate) { - int ret = nouveau_pstate_prog(clk, pstate); - if (ret) { - nv_error(clk, "error setting pstate %d: %d\n", - pstate, ret); - } - } - - wake_up_all(&clk->wait); - nvkm_notify_get(&clk->pwrsrc_ntfy); -} - -static int -nouveau_pstate_calc(struct nouveau_clock *clk, bool wait) -{ - atomic_set(&clk->waiting, 1); - schedule_work(&clk->work); - if (wait) - wait_event(clk->wait, !atomic_read(&clk->waiting)); - return 0; -} - -static void -nouveau_pstate_info(struct nouveau_clock *clk, struct nouveau_pstate *pstate) -{ - struct nouveau_clocks *clock = clk->domains - 1; - struct nouveau_cstate *cstate; - char info[3][32] = { "", "", "" }; - char name[4] = "--"; - int i = -1; - - if (pstate->pstate != 0xff) - snprintf(name, sizeof(name), "%02x", pstate->pstate); - - while ((++clock)->name != nv_clk_src_max) { - u32 lo = pstate->base.domain[clock->name]; - u32 hi = lo; - if (hi == 0) - continue; - - nv_debug(clk, "%02x: %10d KHz\n", clock->name, lo); - list_for_each_entry(cstate, &pstate->list, head) { - u32 freq = cstate->domain[clock->name]; - lo = min(lo, freq); - hi = max(hi, freq); - nv_debug(clk, "%10d KHz\n", freq); - } - - if (clock->mname && ++i < ARRAY_SIZE(info)) { - lo /= clock->mdiv; - hi /= clock->mdiv; - if (lo == hi) { - snprintf(info[i], sizeof(info[i]), "%s %d MHz", - clock->mname, lo); - } else { - snprintf(info[i], sizeof(info[i]), - "%s %d-%d MHz", clock->mname, lo, hi); - } - } - } - - nv_info(clk, "%s: %s %s %s\n", name, info[0], info[1], info[2]); -} - -static void -nouveau_pstate_del(struct nouveau_pstate *pstate) -{ - struct nouveau_cstate *cstate, *temp; - - list_for_each_entry_safe(cstate, temp, &pstate->list, head) { - nouveau_cstate_del(cstate); - } - - list_del(&pstate->head); - kfree(pstate); -} - -static int -nouveau_pstate_new(struct nouveau_clock *clk, int idx) -{ - struct nouveau_bios *bios = nouveau_bios(clk); - struct nouveau_clocks *domain = clk->domains - 1; - struct nouveau_pstate *pstate; - struct nouveau_cstate *cstate; - struct nvbios_cstepE cstepE; - struct nvbios_perfE perfE; - u8 ver, hdr, cnt, len; - u16 data; - - data = nvbios_perfEp(bios, idx, &ver, &hdr, &cnt, &len, &perfE); - if (!data) - return -EINVAL; - if (perfE.pstate == 0xff) - return 0; - - pstate = kzalloc(sizeof(*pstate), GFP_KERNEL); - cstate = &pstate->base; - if (!pstate) - return -ENOMEM; - - INIT_LIST_HEAD(&pstate->list); - - pstate->pstate = perfE.pstate; - pstate->fanspeed = perfE.fanspeed; - cstate->voltage = perfE.voltage; - cstate->domain[nv_clk_src_core] = perfE.core; - cstate->domain[nv_clk_src_shader] = perfE.shader; - cstate->domain[nv_clk_src_mem] = perfE.memory; - cstate->domain[nv_clk_src_vdec] = perfE.vdec; - cstate->domain[nv_clk_src_dom6] = perfE.disp; - - while (ver >= 0x40 && (++domain)->name != nv_clk_src_max) { - struct nvbios_perfS perfS; - u8 sver = ver, shdr = hdr; - u32 perfSe = nvbios_perfSp(bios, data, domain->bios, - &sver, &shdr, cnt, len, &perfS); - if (perfSe == 0 || sver != 0x40) - continue; - - if (domain->flags & NVKM_CLK_DOM_FLAG_CORE) { - perfS.v40.freq = nouveau_clock_adjust(clk, false, - pstate->pstate, - domain->bios, - perfS.v40.freq); - } - - cstate->domain[domain->name] = perfS.v40.freq; - } - - data = nvbios_cstepEm(bios, pstate->pstate, &ver, &hdr, &cstepE); - if (data) { - int idx = cstepE.index; - do { - nouveau_cstate_new(clk, idx, pstate); - } while(idx--); - } - - nouveau_pstate_info(clk, pstate); - list_add_tail(&pstate->head, &clk->states); - clk->state_nr++; - return 0; -} - -/****************************************************************************** - * Adjustment triggers - *****************************************************************************/ -static int -nouveau_clock_ustate_update(struct nouveau_clock *clk, int req) -{ - struct nouveau_pstate *pstate; - int i = 0; - - if (!clk->allow_reclock) - return -ENOSYS; - - if (req != -1 && req != -2) { - list_for_each_entry(pstate, &clk->states, head) { - if (pstate->pstate == req) - break; - i++; - } - - if (pstate->pstate != req) - return -EINVAL; - req = i; - } - - return req + 2; -} - -static int -nouveau_clock_nstate(struct nouveau_clock *clk, const char *mode, int arglen) -{ - int ret = 1; - - if (clk->allow_reclock && !strncasecmpz(mode, "auto", arglen)) - return -2; - - if (strncasecmpz(mode, "disabled", arglen)) { - char save = mode[arglen]; - long v; - - ((char *)mode)[arglen] = '\0'; - if (!kstrtol(mode, 0, &v)) { - ret = nouveau_clock_ustate_update(clk, v); - if (ret < 0) - ret = 1; - } - ((char *)mode)[arglen] = save; - } - - return ret - 2; -} - -int -nouveau_clock_ustate(struct nouveau_clock *clk, int req, int pwr) -{ - int ret = nouveau_clock_ustate_update(clk, req); - if (ret >= 0) { - if (ret -= 2, pwr) clk->ustate_ac = ret; - else clk->ustate_dc = ret; - return nouveau_pstate_calc(clk, true); - } - return ret; -} - -int -nouveau_clock_astate(struct nouveau_clock *clk, int req, int rel, bool wait) -{ - if (!rel) clk->astate = req; - if ( rel) clk->astate += rel; - clk->astate = min(clk->astate, clk->state_nr - 1); - clk->astate = max(clk->astate, 0); - return nouveau_pstate_calc(clk, wait); -} - -int -nouveau_clock_tstate(struct nouveau_clock *clk, int req, int rel) -{ - if (!rel) clk->tstate = req; - if ( rel) clk->tstate += rel; - clk->tstate = min(clk->tstate, 0); - clk->tstate = max(clk->tstate, -(clk->state_nr - 1)); - return nouveau_pstate_calc(clk, true); -} - -int -nouveau_clock_dstate(struct nouveau_clock *clk, int req, int rel) -{ - if (!rel) clk->dstate = req; - if ( rel) clk->dstate += rel; - clk->dstate = min(clk->dstate, clk->state_nr - 1); - clk->dstate = max(clk->dstate, 0); - return nouveau_pstate_calc(clk, true); -} - -static int -nouveau_clock_pwrsrc(struct nvkm_notify *notify) -{ - struct nouveau_clock *clk = - container_of(notify, typeof(*clk), pwrsrc_ntfy); - nouveau_pstate_calc(clk, false); - return NVKM_NOTIFY_DROP; -} - -/****************************************************************************** - * subdev base class implementation - *****************************************************************************/ - -int -_nouveau_clock_fini(struct nouveau_object *object, bool suspend) -{ - struct nouveau_clock *clk = (void *)object; - nvkm_notify_put(&clk->pwrsrc_ntfy); - return nouveau_subdev_fini(&clk->base, suspend); -} - -int -_nouveau_clock_init(struct nouveau_object *object) -{ - struct nouveau_clock *clk = (void *)object; - struct nouveau_clocks *clock = clk->domains; - int ret; - - ret = nouveau_subdev_init(&clk->base); - if (ret) - return ret; - - memset(&clk->bstate, 0x00, sizeof(clk->bstate)); - INIT_LIST_HEAD(&clk->bstate.list); - clk->bstate.pstate = 0xff; - - while (clock->name != nv_clk_src_max) { - ret = clk->read(clk, clock->name); - if (ret < 0) { - nv_error(clk, "%02x freq unknown\n", clock->name); - return ret; - } - clk->bstate.base.domain[clock->name] = ret; - clock++; - } - - nouveau_pstate_info(clk, &clk->bstate); - - clk->astate = clk->state_nr - 1; - clk->tstate = 0; - clk->dstate = 0; - clk->pstate = -1; - nouveau_pstate_calc(clk, true); - return 0; -} - -void -_nouveau_clock_dtor(struct nouveau_object *object) -{ - struct nouveau_clock *clk = (void *)object; - struct nouveau_pstate *pstate, *temp; - - nvkm_notify_fini(&clk->pwrsrc_ntfy); - - list_for_each_entry_safe(pstate, temp, &clk->states, head) { - nouveau_pstate_del(pstate); - } - - nouveau_subdev_destroy(&clk->base); -} - -int -nouveau_clock_create_(struct nouveau_object *parent, - struct nouveau_object *engine, - struct nouveau_oclass *oclass, - struct nouveau_clocks *clocks, - struct nouveau_pstate *pstates, int nb_pstates, - bool allow_reclock, - int length, void **object) -{ - struct nouveau_device *device = nv_device(parent); - struct nouveau_clock *clk; - int ret, idx, arglen; - const char *mode; - - ret = nouveau_subdev_create_(parent, engine, oclass, 0, "CLK", - "clock", length, object); - clk = *object; - if (ret) - return ret; - - INIT_LIST_HEAD(&clk->states); - clk->domains = clocks; - clk->ustate_ac = -1; - clk->ustate_dc = -1; - - INIT_WORK(&clk->work, nouveau_pstate_work); - init_waitqueue_head(&clk->wait); - atomic_set(&clk->waiting, 0); - - /* If no pstates are provided, try and fetch them from the BIOS */ - if (!pstates) { - idx = 0; - do { - ret = nouveau_pstate_new(clk, idx++); - } while (ret == 0); - } else { - for (idx = 0; idx < nb_pstates; idx++) - list_add_tail(&pstates[idx].head, &clk->states); - clk->state_nr = nb_pstates; - } - - clk->allow_reclock = allow_reclock; - - ret = nvkm_notify_init(NULL, &device->event, nouveau_clock_pwrsrc, true, - NULL, 0, 0, &clk->pwrsrc_ntfy); - if (ret) - return ret; - - mode = nouveau_stropt(device->cfgopt, "NvClkMode", &arglen); - if (mode) { - clk->ustate_ac = nouveau_clock_nstate(clk, mode, arglen); - clk->ustate_dc = nouveau_clock_nstate(clk, mode, arglen); - } - - mode = nouveau_stropt(device->cfgopt, "NvClkModeAC", &arglen); - if (mode) - clk->ustate_ac = nouveau_clock_nstate(clk, mode, arglen); - - mode = nouveau_stropt(device->cfgopt, "NvClkModeDC", &arglen); - if (mode) - clk->ustate_dc = nouveau_clock_nstate(clk, mode, arglen); - - - return 0; -} |