diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c | 147 |
1 files changed, 126 insertions, 21 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c index 7102c25320fc..e4c8d310d870 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c @@ -27,6 +27,7 @@ #include <subdev/bios/boost.h> #include <subdev/bios/cstep.h> #include <subdev/bios/perf.h> +#include <subdev/bios/vpstate.h> #include <subdev/fb.h> #include <subdev/therm.h> #include <subdev/volt.h> @@ -43,13 +44,13 @@ nvkm_clk_adjust(struct nvkm_clk *clk, bool adjust, struct nvkm_bios *bios = clk->subdev.device->bios; struct nvbios_boostE boostE; u8 ver, hdr, cnt, len; - u16 data; + u32 data; data = nvbios_boostEm(bios, pstate, &ver, &hdr, &cnt, &len, &boostE); if (data) { struct nvbios_boostS boostS; u8 idx = 0, sver, shdr; - u16 subd; + u32 subd; input = max(boostE.min, input); input = min(boostE.max, input); @@ -74,6 +75,88 @@ nvkm_clk_adjust(struct nvkm_clk *clk, bool adjust, /****************************************************************************** * C-States *****************************************************************************/ +static bool +nvkm_cstate_valid(struct nvkm_clk *clk, struct nvkm_cstate *cstate, + u32 max_volt, int temp) +{ + const struct nvkm_domain *domain = clk->domains; + struct nvkm_volt *volt = clk->subdev.device->volt; + int voltage; + + while (domain && domain->name != nv_clk_src_max) { + if (domain->flags & NVKM_CLK_DOM_FLAG_VPSTATE) { + u32 freq = cstate->domain[domain->name]; + switch (clk->boost_mode) { + case NVKM_CLK_BOOST_NONE: + if (clk->base_khz && freq > clk->base_khz) + return false; + case NVKM_CLK_BOOST_BIOS: + if (clk->boost_khz && freq > clk->boost_khz) + return false; + } + } + domain++; + } + + if (!volt) + return true; + + voltage = nvkm_volt_map(volt, cstate->voltage, temp); + if (voltage < 0) + return false; + return voltage <= min(max_volt, volt->max_uv); +} + +static struct nvkm_cstate * +nvkm_cstate_find_best(struct nvkm_clk *clk, struct nvkm_pstate *pstate, + struct nvkm_cstate *start) +{ + struct nvkm_device *device = clk->subdev.device; + struct nvkm_volt *volt = device->volt; + struct nvkm_cstate *cstate; + int max_volt; + + if (!pstate || !start) + return NULL; + + if (!volt) + return start; + + max_volt = volt->max_uv; + if (volt->max0_id != 0xff) + max_volt = min(max_volt, + nvkm_volt_map(volt, volt->max0_id, clk->temp)); + if (volt->max1_id != 0xff) + max_volt = min(max_volt, + nvkm_volt_map(volt, volt->max1_id, clk->temp)); + if (volt->max2_id != 0xff) + max_volt = min(max_volt, + nvkm_volt_map(volt, volt->max2_id, clk->temp)); + + for (cstate = start; &cstate->head != &pstate->list; + cstate = list_entry(cstate->head.prev, typeof(*cstate), head)) { + if (nvkm_cstate_valid(clk, cstate, max_volt, clk->temp)) + break; + } + + return cstate; +} + +static struct nvkm_cstate * +nvkm_cstate_get(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei) +{ + struct nvkm_cstate *cstate; + if (cstatei == NVKM_CLK_CSTATE_HIGHEST) + return list_last_entry(&pstate->list, typeof(*cstate), head); + else { + list_for_each_entry(cstate, &pstate->list, head) { + if (cstate->id == cstatei) + return cstate; + } + } + return NULL; +} + static int nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei) { @@ -85,7 +168,8 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei) int ret; if (!list_empty(&pstate->list)) { - cstate = list_entry(pstate->list.prev, typeof(*cstate), head); + cstate = nvkm_cstate_get(clk, pstate, cstatei); + cstate = nvkm_cstate_find_best(clk, pstate, cstate); } else { cstate = &pstate->base; } @@ -99,7 +183,8 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei) } if (volt) { - ret = nvkm_volt_set_id(volt, cstate->voltage, +1); + ret = nvkm_volt_set_id(volt, cstate->voltage, + pstate->base.voltage, clk->temp, +1); if (ret && ret != -ENODEV) { nvkm_error(subdev, "failed to raise voltage: %d\n", ret); return ret; @@ -113,7 +198,8 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei) } if (volt) { - ret = nvkm_volt_set_id(volt, cstate->voltage, -1); + ret = nvkm_volt_set_id(volt, cstate->voltage, + pstate->base.voltage, clk->temp, -1); if (ret && ret != -ENODEV) nvkm_error(subdev, "failed to lower voltage: %d\n", ret); } @@ -138,22 +224,27 @@ static int nvkm_cstate_new(struct nvkm_clk *clk, int idx, struct nvkm_pstate *pstate) { struct nvkm_bios *bios = clk->subdev.device->bios; + struct nvkm_volt *volt = clk->subdev.device->volt; const struct nvkm_domain *domain = clk->domains; struct nvkm_cstate *cstate = NULL; struct nvbios_cstepX cstepX; u8 ver, hdr; - u16 data; + u32 data; data = nvbios_cstepXp(bios, idx, &ver, &hdr, &cstepX); if (!data) return -ENOENT; + if (volt && nvkm_volt_map_min(volt, cstepX.voltage) > volt->max_uv) + return -EINVAL; + cstate = kzalloc(sizeof(*cstate), GFP_KERNEL); if (!cstate) return -ENOMEM; *cstate = pstate->base; cstate->voltage = cstepX.voltage; + cstate->id = idx; while (domain && domain->name != nv_clk_src_max) { if (domain->flags & NVKM_CLK_DOM_FLAG_CORE) { @@ -175,7 +266,7 @@ static int nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei) { struct nvkm_subdev *subdev = &clk->subdev; - struct nvkm_ram *ram = subdev->device->fb->ram; + struct nvkm_fb *fb = subdev->device->fb; struct nvkm_pci *pci = subdev->device->pci; struct nvkm_pstate *pstate; int ret, idx = 0; @@ -190,7 +281,8 @@ nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei) nvkm_pcie_set_link(pci, pstate->pcie_speed, pstate->pcie_width); - if (ram && ram->func->calc) { + if (fb && fb->ram && fb->ram->func->calc) { + struct nvkm_ram *ram = fb->ram; int khz = pstate->base.domain[nv_clk_src_mem]; do { ret = ram->func->calc(ram, khz); @@ -200,7 +292,7 @@ nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei) ram->func->tidy(ram); } - return nvkm_cstate_prog(clk, pstate, 0); + return nvkm_cstate_prog(clk, pstate, NVKM_CLK_CSTATE_HIGHEST); } static void @@ -214,14 +306,14 @@ nvkm_pstate_work(struct work_struct *work) return; clk->pwrsrc = power_supply_is_system_supplied(); - nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d D %d\n", + nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d°C D %d\n", clk->pstate, clk->pwrsrc, clk->ustate_ac, clk->ustate_dc, - clk->astate, clk->tstate, clk->dstate); + clk->astate, clk->temp, 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 = min(pstate, clk->state_nr - 1); pstate = max(pstate, clk->dstate); } else { pstate = clk->pstate = -1; @@ -316,7 +408,7 @@ nvkm_pstate_new(struct nvkm_clk *clk, int idx) struct nvbios_cstepE cstepE; struct nvbios_perfE perfE; u8 ver, hdr, cnt, len; - u16 data; + u32 data; data = nvbios_perfEp(bios, idx, &ver, &hdr, &cnt, &len, &perfE); if (!data) @@ -448,13 +540,12 @@ nvkm_clk_astate(struct nvkm_clk *clk, int req, int rel, bool wait) } int -nvkm_clk_tstate(struct nvkm_clk *clk, int req, int rel) +nvkm_clk_tstate(struct nvkm_clk *clk, u8 temp) { - 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 nvkm_pstate_calc(clk, true); + if (clk->temp == temp) + return 0; + clk->temp = temp; + return nvkm_pstate_calc(clk, false); } int @@ -524,9 +615,9 @@ nvkm_clk_init(struct nvkm_subdev *subdev) return clk->func->init(clk); clk->astate = clk->state_nr - 1; - clk->tstate = 0; clk->dstate = 0; clk->pstate = -1; + clk->temp = 90; /* reasonable default value */ nvkm_pstate_calc(clk, true); return 0; } @@ -561,10 +652,22 @@ int nvkm_clk_ctor(const struct nvkm_clk_func *func, struct nvkm_device *device, int index, bool allow_reclock, struct nvkm_clk *clk) { + struct nvkm_subdev *subdev = &clk->subdev; + struct nvkm_bios *bios = device->bios; int ret, idx, arglen; const char *mode; + struct nvbios_vpstate_header h; + + nvkm_subdev_ctor(&nvkm_clk, device, index, subdev); + + if (bios && !nvbios_vpstate_parse(bios, &h)) { + struct nvbios_vpstate_entry base, boost; + if (!nvbios_vpstate_entry(bios, &h, h.boost_id, &boost)) + clk->boost_khz = boost.clock_mhz * 1000; + if (!nvbios_vpstate_entry(bios, &h, h.base_id, &base)) + clk->base_khz = base.clock_mhz * 1000; + } - nvkm_subdev_ctor(&nvkm_clk, device, index, &clk->subdev); clk->func = func; INIT_LIST_HEAD(&clk->states); clk->domains = func->domains; @@ -607,6 +710,8 @@ nvkm_clk_ctor(const struct nvkm_clk_func *func, struct nvkm_device *device, if (mode) clk->ustate_dc = nvkm_clk_nstate(clk, mode, arglen); + clk->boost_mode = nvkm_longopt(device->cfgopt, "NvBoost", + NVKM_CLK_BOOST_NONE); return 0; } |