From patchwork Mon Jun 20 03:31:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmlhLXdlaSBDaGFuZyAo5by15L2z5YGJKQ==?= X-Patchwork-Id: 12886963 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9DAC0C43334 for ; Mon, 20 Jun 2022 03:44:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=svHFAYqbliz5UTAxH+3k40yRONcmcMW+KHv+eniRZJg=; b=sA9Fbh3vjxoP7T Jf40YA5Gf2QYmLjwIcE0wegQubphTnY+7RSNledXCOuJo+9+gWjmBqU8qJEAU3ToECmzwjrNBV8DW LtCFKMnSEl4WBuFcB3twOM+8rlE1FSPFDcYDamNXsMN2y7ZCaCeoCf/UqzTguk//HBB3hWwmKcJWz Ogfwp6Co4nxbTsL1cyVUf2k/8lvZExTstLC1SdISSkDWM0KBeTqNK2F0XX58fYF9NUSmImxVlTvuT EPivRVWz6nGAVxPLWdUknVg4g7Q7cetymrPClT+OHy7BET7j4sSZFsJV1p5GDU7C0DmDPL/ZrdnW8 VjCekkNOfKMc8QKWzqkw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o38Jt-00G0CQ-74; Mon, 20 Jun 2022 03:43:21 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o38Jh-00G07l-8E; Mon, 20 Jun 2022 03:43:11 +0000 X-UUID: 02016e301f854050b718418315f9a58d-20220619 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:cf0776cd-0e52-4ab8-9301-ccd05de0cfde,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:b14ad71,CLOUDID:94a9253d-9948-4b2a-a784-d8a6c1086106,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:nil,BEC:nil,COL:0 X-UUID: 02016e301f854050b718418315f9a58d-20220619 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1661401; Sun, 19 Jun 2022 20:43:03 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 19 Jun 2022 20:33:11 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Mon, 20 Jun 2022 11:33:09 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Mon, 20 Jun 2022 11:33:09 +0800 From: jia-wei.chang To: Rob Herring , Krzysztof Kozlowski , Matthias Brugger , Philipp Zabel , Roger Lu , Kevin Hilman , Jia-Wei Chang CC: , , , , , , AngeloGioacchino Del Regno Subject: [PATCH v4 2/4] soc: mediatek: svs: add support for mt8186 Date: Mon, 20 Jun 2022 11:31:54 +0800 Message-ID: <20220620033156.21489-3-jia-wei.chang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220620033156.21489-1-jia-wei.chang@mediatek.com> References: <20220620033156.21489-1-jia-wei.chang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220619_204309_350740_20D47810 X-CRM114-Status: GOOD ( 20.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Jia-Wei Chang MT8186 svs has a number of banks which used as optimization of opp voltage table for corresponding dvfs drivers. MT8186 svs big core uses 2-line high bank and low bank to optimize the voltage of opp table for higher and lower frequency respectively. Signed-off-by: Jia-Wei Chang Reviewed-by: AngeloGioacchino Del Regno --- drivers/soc/mediatek/mtk-svs.c | 350 ++++++++++++++++++++++++++++++++- 1 file changed, 343 insertions(+), 7 deletions(-) diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c index 606a00a2e57d..663c619398c1 100644 --- a/drivers/soc/mediatek/mtk-svs.c +++ b/drivers/soc/mediatek/mtk-svs.c @@ -355,6 +355,7 @@ struct svs_platform_data { * @dcbdet: svs efuse data * @dcmdet: svs efuse data * @turn_pt: 2-line turn point tells which opp_volt calculated by high/low bank + * @vbin_turn_pt: voltage bin turn point helps know which svsb_volt should be overridden * @type: bank type to represent it is 2-line (high/low) bank or 1-line bank * * Svs bank will generate suitalbe voltages by below general math equation @@ -417,6 +418,7 @@ struct svs_bank { u32 dcbdet; u32 dcmdet; u32 turn_pt; + u32 vbin_turn_pt; u32 type; }; @@ -692,11 +694,12 @@ static int svs_status_debug_show(struct seq_file *m, void *v) ret = thermal_zone_get_temp(svsb->tzd, &tzone_temp); if (ret) - seq_printf(m, "%s: temperature ignore, turn_pt = %u\n", - svsb->name, svsb->turn_pt); + seq_printf(m, "%s: temperature ignore, vbin_turn_pt = %u, turn_pt = %u\n", + svsb->name, svsb->vbin_turn_pt, svsb->turn_pt); else - seq_printf(m, "%s: temperature = %d, turn_pt = %u\n", - svsb->name, tzone_temp, svsb->turn_pt); + seq_printf(m, "%s: temperature = %d, vbin_turn_pt = %u, turn_pt = %u\n", + svsb->name, tzone_temp, svsb->vbin_turn_pt, + svsb->turn_pt); for (i = 0; i < svsb->opp_count; i++) { opp = dev_pm_opp_find_freq_exact(svsb->opp_dev, @@ -889,9 +892,11 @@ static void svs_get_bank_volts_v3(struct svs_platform *svsp) opp_stop = svsb->opp_count; } - for (i = opp_start; i < opp_stop; i++) + for (i = opp_start; i < opp_stop; i++) { if (svsb->volt_flags & SVSB_REMOVE_DVTFIXED_VOLT) svsb->volt[i] -= svsb->dvt_fixed; + svsb->volt[i] += svsb->volt_od; + } } static void svs_set_bank_freq_pct_v3(struct svs_platform *svsp) @@ -982,6 +987,10 @@ static void svs_get_bank_volts_v2(struct svs_platform *svsp) struct svs_bank *svsb = svsp->pbank; u32 temp, i; + if (svsb->phase == SVSB_PHASE_MON && + svsb->volt_flags & SVSB_MON_VOLT_IGNORE) + return; + temp = svs_readl_relaxed(svsp, VOP74); svsb->volt[14] = (temp >> 24) & GENMASK(7, 0); svsb->volt[12] = (temp >> 16) & GENMASK(7, 0); @@ -1007,8 +1016,34 @@ static void svs_get_bank_volts_v2(struct svs_platform *svsp) svsb->volt[14], svsb->freq_pct[15]); - for (i = 0; i < svsb->opp_count; i++) + for (i = 0; i < svsb->opp_count; i++) { + if (svsb->volt_flags & SVSB_REMOVE_DVTFIXED_VOLT) + svsb->volt[i] -= svsb->dvt_fixed; svsb->volt[i] += svsb->volt_od; + } + + /* For voltage bin support */ + if (svsb->opp_dfreq[0] > svsb->freq_base) { + svsb->volt[0] = svs_opp_volt_to_bank_volt(svsb->opp_dvolt[0], + svsb->volt_step, + svsb->volt_base); + + /* Find voltage bin turn point */ + for (i = 0; i < svsb->opp_count; i++) { + if (svsb->opp_dfreq[i] <= svsb->freq_base) { + svsb->vbin_turn_pt = i; + break; + } + } + + /* Override svs bank voltages */ + for (i = 1; i < svsb->vbin_turn_pt; i++) + svsb->volt[i] = interpolate(svsb->freq_pct[0], + svsb->freq_pct[svsb->vbin_turn_pt], + svsb->volt[0], + svsb->volt[svsb->vbin_turn_pt], + svsb->freq_pct[i]); + } } static void svs_set_bank_freq_pct_v2(struct svs_platform *svsp) @@ -1556,7 +1591,12 @@ static int svs_bank_resource_setup(struct svs_platform *svsp) svsb->name = "SVSB_CPU_LITTLE"; break; case SVSB_CPU_BIG: - svsb->name = "SVSB_CPU_BIG"; + if (svsb->type == SVSB_HIGH) + svsb->name = "SVSB_CPU_BIG_HIGH"; + else if (svsb->type == SVSB_LOW) + svsb->name = "SVSB_CPU_BIG_LOW"; + else + svsb->name = "SVSB_CPU_BIG"; break; case SVSB_CCI: svsb->name = "SVSB_CCI"; @@ -1719,6 +1759,103 @@ static bool svs_mt8192_efuse_parsing(struct svs_platform *svsp) return true; } +static bool svs_mt8186_efuse_parsing(struct svs_platform *svsp) +{ + struct svs_bank *svsb; + struct nvmem_cell *cell; + u32 idx, i, golden_temp; + + for (i = 0; i < svsp->efuse_max; i++) + if (svsp->efuse[i]) + dev_info(svsp->dev, "M_HW_RES%d: 0x%08x\n", + i, svsp->efuse[i]); + + if (!svsp->efuse[0]) { + dev_notice(svsp->dev, "svs_efuse[0] = 0x0?\n"); + return false; + } + + /* Svs efuse parsing */ + for (idx = 0; idx < svsp->bank_max; idx++) { + svsb = &svsp->banks[idx]; + + switch (svsb->sw_id) { + case SVSB_CPU_BIG: + if (svsb->type == SVSB_HIGH) { + svsb->mdes = (svsp->efuse[2] >> 24) & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[2] >> 16) & GENMASK(7, 0); + svsb->mtdes = svsp->efuse[2] & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[13] >> 8) & GENMASK(7, 0); + svsb->dcbdet = svsp->efuse[13] & GENMASK(7, 0); + } else if (svsb->type == SVSB_LOW) { + svsb->mdes = (svsp->efuse[3] >> 24) & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[3] >> 16) & GENMASK(7, 0); + svsb->mtdes = svsp->efuse[3] & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[14] >> 24) & GENMASK(7, 0); + svsb->dcbdet = (svsp->efuse[14] >> 16) & GENMASK(7, 0); + } + break; + case SVSB_CPU_LITTLE: + svsb->mdes = (svsp->efuse[4] >> 24) & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[4] >> 16) & GENMASK(7, 0); + svsb->mtdes = svsp->efuse[4] & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[14] >> 8) & GENMASK(7, 0); + svsb->dcbdet = svsp->efuse[14] & GENMASK(7, 0); + break; + case SVSB_CCI: + svsb->mdes = (svsp->efuse[5] >> 24) & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[5] >> 16) & GENMASK(7, 0); + svsb->mtdes = svsp->efuse[5] & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[15] >> 24) & GENMASK(7, 0); + svsb->dcbdet = (svsp->efuse[15] >> 16) & GENMASK(7, 0); + break; + case SVSB_GPU: + svsb->mdes = (svsp->efuse[6] >> 24) & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[6] >> 16) & GENMASK(7, 0); + svsb->mtdes = svsp->efuse[6] & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[15] >> 8) & GENMASK(7, 0); + svsb->dcbdet = svsp->efuse[15] & GENMASK(7, 0); + break; + default: + dev_err(svsb->dev, "unknown sw_id: %u\n", svsb->sw_id); + return false; + } + + svsb->vmax += svsb->dvt_fixed; + } + + /* Thermal efuse parsing */ + cell = nvmem_cell_get(svsp->dev, "t-calibration-data"); + if (IS_ERR_OR_NULL(cell)) { + dev_err(svsp->dev, "no \"t-calibration-data\"? %ld\n", + PTR_ERR(cell)); + return false; + } + + svsp->tefuse = nvmem_cell_read(cell, &svsp->tefuse_max); + if (IS_ERR(svsp->tefuse)) { + dev_err(svsp->dev, "cannot read thermal efuse: %ld\n", + PTR_ERR(svsp->tefuse)); + nvmem_cell_put(cell); + return false; + } + + svsp->tefuse_max /= sizeof(u32); + nvmem_cell_put(cell); + + golden_temp = (svsp->tefuse[0] >> 24) & GENMASK(7, 0); + if (!golden_temp) + golden_temp = 50; + + for (idx = 0; idx < svsp->bank_max; idx++) { + svsb = &svsp->banks[idx]; + svsb->mts = 409; + svsb->bts = (((500 * golden_temp + 204650) / 1000) - 25) * 4; + } + + return true; +} + static bool svs_mt8183_efuse_parsing(struct svs_platform *svsp) { struct svs_bank *svsb; @@ -2037,6 +2174,50 @@ static int svs_mt8192_platform_probe(struct svs_platform *svsp) return 0; } +static int svs_mt8186_platform_probe(struct svs_platform *svsp) +{ + struct device *dev; + struct svs_bank *svsb; + u32 idx; + + svsp->rst = devm_reset_control_get_optional(svsp->dev, "svs_rst"); + if (IS_ERR(svsp->rst)) + return dev_err_probe(svsp->dev, PTR_ERR(svsp->rst), + "cannot get svs reset control\n"); + + dev = svs_add_device_link(svsp, "lvts"); + if (IS_ERR(dev)) + return dev_err_probe(svsp->dev, PTR_ERR(dev), + "failed to get lvts device\n"); + + for (idx = 0; idx < svsp->bank_max; idx++) { + svsb = &svsp->banks[idx]; + + switch (svsb->sw_id) { + case SVSB_CPU_LITTLE: + case SVSB_CPU_BIG: + svsb->opp_dev = get_cpu_device(svsb->cpu_id); + break; + case SVSB_CCI: + svsb->opp_dev = svs_add_device_link(svsp, "cci"); + break; + case SVSB_GPU: + svsb->opp_dev = svs_add_device_link(svsp, "mali"); + break; + default: + dev_err(svsb->dev, "unknown sw_id: %u\n", svsb->sw_id); + return -EINVAL; + } + + if (IS_ERR(svsb->opp_dev)) + return dev_err_probe(svsp->dev, PTR_ERR(svsb->opp_dev), + "failed to get OPP device for bank %d\n", + idx); + } + + return 0; +} + static int svs_mt8183_platform_probe(struct svs_platform *svsp) { struct device *dev; @@ -2131,6 +2312,149 @@ static struct svs_bank svs_mt8192_banks[] = { }, }; +static struct svs_bank svs_mt8186_banks[] = { + { + .sw_id = SVSB_CPU_BIG, + .type = SVSB_LOW, + .set_freq_pct = svs_set_bank_freq_pct_v3, + .get_volts = svs_get_bank_volts_v3, + .cpu_id = 6, + .volt_flags = SVSB_REMOVE_DVTFIXED_VOLT, + .mode_support = SVSB_MODE_INIT02, + .opp_count = MAX_OPP_ENTRIES, + .freq_base = 1670000000, + .turn_freq_base = 1670000000, + .volt_step = 6250, + .volt_base = 400000, + .volt_od = 4, + .vmax = 0x59, + .vmin = 0x20, + .age_config = 0x1, + .dc_config = 0x1, + .dvt_fixed = 0x3, + .vco = 0x10, + .chk_shift = 0x87, + .core_sel = 0x0fff0100, + .int_st = BIT(0), + .ctl0 = 0x00540003, + }, + { + .sw_id = SVSB_CPU_BIG, + .type = SVSB_HIGH, + .set_freq_pct = svs_set_bank_freq_pct_v3, + .get_volts = svs_get_bank_volts_v3, + .cpu_id = 6, + .tzone_name = "cpu_big0", + .volt_flags = SVSB_REMOVE_DVTFIXED_VOLT | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02 | SVSB_MODE_MON, + .opp_count = MAX_OPP_ENTRIES, + .freq_base = 2050000000, + .turn_freq_base = 1670000000, + .volt_step = 6250, + .volt_base = 400000, + .volt_od = 4, + .vmax = 0x73, + .vmin = 0x20, + .age_config = 0x1, + .dc_config = 0x1, + .dvt_fixed = 0x6, + .vco = 0x10, + .chk_shift = 0x87, + .core_sel = 0x0fff0101, + .int_st = BIT(1), + .ctl0 = 0x00540003, + .tzone_htemp = 85000, + .tzone_htemp_voffset = 8, + .tzone_ltemp = 25000, + .tzone_ltemp_voffset = 8, + }, + { + .sw_id = SVSB_CPU_LITTLE, + .set_freq_pct = svs_set_bank_freq_pct_v2, + .get_volts = svs_get_bank_volts_v2, + .cpu_id = 0, + .tzone_name = "cpu_zone0", + .volt_flags = SVSB_REMOVE_DVTFIXED_VOLT | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02 | SVSB_MODE_MON, + .opp_count = MAX_OPP_ENTRIES, + .freq_base = 2000000000, + .volt_step = 6250, + .volt_base = 400000, + .volt_od = 3, + .vmax = 0x65, + .vmin = 0x20, + .age_config = 0x1, + .dc_config = 0x1, + .dvt_fixed = 0x6, + .vco = 0x10, + .chk_shift = 0x87, + .core_sel = 0x0fff0102, + .int_st = BIT(2), + .ctl0 = 0x3210000f, + .tzone_htemp = 85000, + .tzone_htemp_voffset = 8, + .tzone_ltemp = 25000, + .tzone_ltemp_voffset = 8, + }, + { + .sw_id = SVSB_CCI, + .set_freq_pct = svs_set_bank_freq_pct_v2, + .get_volts = svs_get_bank_volts_v2, + .tzone_name = "cpu_zone0", + .volt_flags = SVSB_REMOVE_DVTFIXED_VOLT | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02 | SVSB_MODE_MON, + .opp_count = MAX_OPP_ENTRIES, + .freq_base = 1400000000, + .volt_step = 6250, + .volt_base = 400000, + .volt_od = 3, + .vmax = 0x65, + .vmin = 0x20, + .age_config = 0x1, + .dc_config = 0x1, + .dvt_fixed = 0x6, + .vco = 0x10, + .chk_shift = 0x87, + .core_sel = 0x0fff0103, + .int_st = BIT(3), + .ctl0 = 0x3210000f, + .tzone_htemp = 85000, + .tzone_htemp_voffset = 8, + .tzone_ltemp = 25000, + .tzone_ltemp_voffset = 8, + }, + { + .sw_id = SVSB_GPU, + .set_freq_pct = svs_set_bank_freq_pct_v2, + .get_volts = svs_get_bank_volts_v2, + .tzone_name = "mfg", + .volt_flags = SVSB_REMOVE_DVTFIXED_VOLT | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02 | SVSB_MODE_MON, + .opp_count = MAX_OPP_ENTRIES, + .freq_base = 850000000, + .volt_step = 6250, + .volt_base = 400000, + .vmax = 0x58, + .vmin = 0x20, + .age_config = 0x555555, + .dc_config = 0x1, + .dvt_fixed = 0x4, + .vco = 0x10, + .chk_shift = 0x87, + .core_sel = 0x0fff0104, + .int_st = BIT(4), + .ctl0 = 0x00100003, + .tzone_htemp = 85000, + .tzone_htemp_voffset = 8, + .tzone_ltemp = 25000, + .tzone_ltemp_voffset = 7, + }, +}; + static struct svs_bank svs_mt8183_banks[] = { { .sw_id = SVSB_CPU_LITTLE, @@ -2245,6 +2569,15 @@ static const struct svs_platform_data svs_mt8192_platform_data = { .bank_max = ARRAY_SIZE(svs_mt8192_banks), }; +static const struct svs_platform_data svs_mt8186_platform_data = { + .name = "mt8186-svs", + .banks = svs_mt8186_banks, + .efuse_parsing = svs_mt8186_efuse_parsing, + .probe = svs_mt8186_platform_probe, + .regs = svs_regs_v2, + .bank_max = ARRAY_SIZE(svs_mt8186_banks), +}; + static const struct svs_platform_data svs_mt8183_platform_data = { .name = "mt8183-svs", .banks = svs_mt8183_banks, @@ -2259,6 +2592,9 @@ static const struct of_device_id svs_of_match[] = { { .compatible = "mediatek,mt8192-svs", .data = &svs_mt8192_platform_data, + }, { + .compatible = "mediatek,mt8186-svs", + .data = &svs_mt8186_platform_data, }, { .compatible = "mediatek,mt8183-svs", .data = &svs_mt8183_platform_data,