From patchwork Tue Jan 23 14:45:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibek Kumar Patro X-Patchwork-Id: 765266 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D4BB45FDD4; Tue, 23 Jan 2024 14:46:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706021208; cv=none; b=OicK4w2p1xroCn+EJ3Gguih3HgKpkC6A6ejmF86WJlZ6lDLuW8ZLPZXZmwkAGb2Ux0B06FC2Y9AbBD2LPA8oLaISC6qiFRzEEdRPiapOBXZ+EMwAuVgW+xfUQgQfCuAcZOesOLfArtJRjoWeCVcjU0/vBZczfPzUtZG24S606b8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706021208; c=relaxed/simple; bh=E0Ny0SESv2K/jz5tdLet34cpK9Kz6ZqFDoEs1ffpZ1U=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dI6S4ia9X+yXoHEQXuKhETLCmYkBC/qd07dOl9MDDGcttmNBGdcsrZW8FFR9jCZOdjYxZKTK+QcJ/xN1werXWMQW3xWcDzrQSFvzoYJYNL2yCSkBiBa1eoiocTtqiesTEDC5AvgO+lY+4rPHStR4zQfKHGA9lGJeKv4Y0qqo9HI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=JdyVPO2e; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="JdyVPO2e" Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40N6kkkb025950; Tue, 23 Jan 2024 14:46:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type; s=qcppdkim1; bh=SIzPrUsNSPZsfCiYgGP7 SErqXgSNyKrKCr5RR2xdKRI=; b=JdyVPO2eEaGUv/3aKhbYpH8Pn5H80txAtIrB Zq+Nw/Oamar5tvHRGXkrT7cHfu0W7SmD8KvjdjT4QWwte88AcpLRazzjQKPQF/b/ sqwdIve0AZ1J7LLJLwK/7uMghmw2Gp7d8ZGilmtBJsg6bRrbdmWhxm+611hg2u9c 7r4r5KgaZPSMjkwPHN7XeUZv7w5/hWQ1ovjD9L5hXs9vqicbzrg9DFwACQHabBj6 14PhanguMJOq5HOk1BP1HPpnUdLL+EHHn3GP37GgM45rab2aU/vPWotZOBCZN1FX BLBa0j8ajdfkZhPN2V8amVYlRXEnvvCyRJPeE5lzjDJWl4RC5w== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vt06mj3xm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 23 Jan 2024 14:46:29 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40NEkSwE014902 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 23 Jan 2024 14:46:28 GMT Received: from hu-bibekkum-hyd.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 23 Jan 2024 06:46:22 -0800 From: Bibek Kumar Patro To: , , , , , , , , , , , , , , CC: , , , , Bibek Kumar Patro Subject: [PATCH v9 3/5] iommu/arm-smmu: introduction of ACTLR for custom prefetcher settings Date: Tue, 23 Jan 2024 20:15:41 +0530 Message-ID: <20240123144543.9405-4-quic_bibekkum@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240123144543.9405-1-quic_bibekkum@quicinc.com> References: <20240123144543.9405-1-quic_bibekkum@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 2Qg6IAHnYPAGJObQQSjcHUhinUf9OLic X-Proofpoint-ORIG-GUID: 2Qg6IAHnYPAGJObQQSjcHUhinUf9OLic X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-23_06,2024-01-23_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 spamscore=0 suspectscore=0 mlxlogscore=999 mlxscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 adultscore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401230106 Currently in Qualcomm SoCs the default prefetch is set to 1 which allows the TLB to fetch just the next page table. MMU-500 features ACTLR register which is implementation defined and is used for Qualcomm SoCs to have a custom prefetch setting enabling TLB to prefetch the next set of page tables accordingly allowing for faster translations. ACTLR value is unique for each SMR (Stream matching register) and stored in a pre-populated table. This value is set to the register during context bank initialisation. Signed-off-by: Bibek Kumar Patro Reviewed-by: Dmitry Baryshkov --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 61 ++++++++++++++++++++++ drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h | 16 +++++- drivers/iommu/arm/arm-smmu/arm-smmu.c | 5 +- drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 ++ 4 files changed, 84 insertions(+), 3 deletions(-) -- 2.17.1 diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 333daeb18c1c..6004c6d9a7b2 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -215,10 +215,42 @@ static bool qcom_adreno_can_do_ttbr1(struct arm_smmu_device *smmu) return true; } +static void qcom_smmu_set_actlr(struct device *dev, struct arm_smmu_device *smmu, int cbndx, + const struct actlr_config *actlrcfg, const size_t num_actlrcfg) +{ + struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev); + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); + struct arm_smmu_smr *smr; + u16 mask; + int idx; + u16 id; + int i; + int j; + + for (i = 0; i < num_actlrcfg; i++) { + id = actlrcfg[i].sid; + mask = actlrcfg[i].mask; + + for_each_cfg_sme(cfg, fwspec, j, idx) { + smr = &smmu->smrs[idx]; + if (smr_is_subset(smr, id, mask)) { + arm_smmu_cb_write(smmu, cbndx, ARM_SMMU_CB_ACTLR, + actlrcfg[i].actlr); + break; + } + } + } +} + static int qcom_adreno_smmu_init_context(struct arm_smmu_domain *smmu_domain, struct io_pgtable_cfg *pgtbl_cfg, struct device *dev) { + struct arm_smmu_device *smmu = smmu_domain->smmu; + struct qcom_smmu *qsmmu = to_qcom_smmu(smmu); + const struct actlr_variant *actlrvar; + int cbndx = smmu_domain->cfg.cbndx; struct adreno_smmu_priv *priv; + int i; smmu_domain->cfg.flush_walk_prefer_tlbiasid = true; @@ -248,6 +280,18 @@ static int qcom_adreno_smmu_init_context(struct arm_smmu_domain *smmu_domain, priv->set_stall = qcom_adreno_smmu_set_stall; priv->resume_translation = qcom_adreno_smmu_resume_translation; + actlrvar = qsmmu->data->actlrvar; + if (!actlrvar) + return 0; + + for (i = 0; i < qsmmu->data->num_smmu ; i++) { + if (actlrvar[i].io_start == smmu->ioaddr) { + qcom_smmu_set_actlr(dev, smmu, cbndx, actlrvar[i].actlrcfg, + actlrvar[i].num_actlrcfg); + break; + } + } + return 0; } @@ -274,7 +318,24 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { static int qcom_smmu_init_context(struct arm_smmu_domain *smmu_domain, struct io_pgtable_cfg *pgtbl_cfg, struct device *dev) { + struct arm_smmu_device *smmu = smmu_domain->smmu; + struct qcom_smmu *qsmmu = to_qcom_smmu(smmu); + const struct actlr_variant *actlrvar; + int cbndx = smmu_domain->cfg.cbndx; + int i; + smmu_domain->cfg.flush_walk_prefer_tlbiasid = true; + actlrvar = qsmmu->data->actlrvar; + if (!actlrvar) + return 0; + + for (i = 0; i < qsmmu->data->num_smmu ; i++) { + if (actlrvar[i].io_start == smmu->ioaddr) { + qcom_smmu_set_actlr(dev, smmu, cbndx, actlrvar[i].actlrcfg, + actlrvar[i].num_actlrcfg); + break; + } + } return 0; } diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h index f3b91963e234..3f651242de7c 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef _ARM_SMMU_QCOM_H @@ -24,8 +24,22 @@ struct qcom_smmu_config { const u32 *reg_offset; }; +struct actlr_config { + u16 sid; + u16 mask; + u32 actlr; +}; + +struct actlr_variant { + const resource_size_t io_start; + const struct actlr_config * const actlrcfg; + const size_t num_actlrcfg; +}; + struct qcom_smmu_match_data { + const struct actlr_variant * const actlrvar; const struct qcom_smmu_config *cfg; + const size_t num_smmu; const struct arm_smmu_impl *impl; const struct arm_smmu_impl *adreno_impl; }; diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index d6d1a2a55cc0..0c7f700b27dd 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -990,9 +990,10 @@ static int arm_smmu_find_sme(struct arm_smmu_device *smmu, u16 id, u16 mask) * expect simply identical entries for this case, but there's * no harm in accommodating the generalisation. */ - if ((mask & smrs[i].mask) == mask && - !((id ^ smrs[i].id) & ~smrs[i].mask)) + + if (smr_is_subset(&smrs[i], id, mask)) return i; + /* * If the new entry has any other overlap with an existing one, * though, then there always exists at least one stream ID diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h index 703fd5817ec1..2e4f65412c6b 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.h +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h @@ -501,6 +501,11 @@ static inline void arm_smmu_writeq(struct arm_smmu_device *smmu, int page, writeq_relaxed(val, arm_smmu_page(smmu, page) + offset); } +static inline bool smr_is_subset(struct arm_smmu_smr *smrs, u16 id, u16 mask) +{ + return (mask & smrs->mask) == mask && !((id ^ smrs->id) & ~smrs->mask); +} + #define ARM_SMMU_GR0 0 #define ARM_SMMU_GR1 1 #define ARM_SMMU_CB(s, n) ((s)->numpage + (n)) From patchwork Tue Jan 23 14:45:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibek Kumar Patro X-Patchwork-Id: 765265 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 12E955FF13; 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Tue, 23 Jan 2024 14:46:41 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40NEkeSB006927 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 23 Jan 2024 14:46:40 GMT Received: from hu-bibekkum-hyd.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 23 Jan 2024 06:46:34 -0800 From: Bibek Kumar Patro To: , , , , , , , , , , , , , , CC: , , , , Bibek Kumar Patro Subject: [PATCH v9 5/5] iommu/arm-smmu: add ACTLR data and support for SC7280 Date: Tue, 23 Jan 2024 20:15:43 +0530 Message-ID: <20240123144543.9405-6-quic_bibekkum@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240123144543.9405-1-quic_bibekkum@quicinc.com> References: <20240123144543.9405-1-quic_bibekkum@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: rqo9KdjESiPEW_l_aVc5N0Lt6YimgyhC X-Proofpoint-ORIG-GUID: rqo9KdjESiPEW_l_aVc5N0Lt6YimgyhC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-23_08,2024-01-23_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 impostorscore=0 mlxlogscore=999 mlxscore=0 spamscore=0 priorityscore=1501 phishscore=0 malwarescore=0 adultscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401230108 Add ACTLR data table for SC7280 along with support for same including SC7280 specific implementation operations. Signed-off-by: Bibek Kumar Patro --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 35 +++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) -- 2.17.1 diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index db15b1eade97..5474f242a96e 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -30,6 +30,32 @@ #define PREFETCH_DEEP (3 << PREFETCH_SHIFT) #define PREFETCH_SWITCH_GFX (5 << 3) +static const struct actlr_config sc7280_apps_actlr_cfg[] = { + { 0x0800, 0x24e1, PREFETCH_DEFAULT | CMTLB }, + { 0x2000, 0x0163, PREFETCH_DEFAULT | CMTLB }, + { 0x2080, 0x0461, PREFETCH_DEFAULT | CMTLB }, + { 0x2100, 0x0161, PREFETCH_DEFAULT | CMTLB }, + { 0x0900, 0x0407, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x2180, 0x0027, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1000, 0x07ff, PREFETCH_DEEP | CPRE | CMTLB }, +}; + +static const struct actlr_config sc7280_gfx_actlr_cfg[] = { + { 0x0000, 0x07ff, PREFETCH_SWITCH_GFX | PREFETCH_DEEP | CPRE | CMTLB }, +}; + +static const struct actlr_variant sc7280_actlr[] = { + { + .io_start = 0x15000000, + .actlrcfg = sc7280_apps_actlr_cfg, + .num_actlrcfg = ARRAY_SIZE(sc7280_apps_actlr_cfg) + }, { + .io_start = 0x03da0000, + .actlrcfg = sc7280_gfx_actlr_cfg, + .num_actlrcfg = ARRAY_SIZE(sc7280_gfx_actlr_cfg) + }, +}; + static const struct actlr_config sm8550_apps_actlr_cfg[] = { { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, @@ -675,6 +701,13 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { /* Also no debug configuration. */ }; +static const struct qcom_smmu_match_data sc7280_smmu_500_impl0_data = { + .impl = &qcom_smmu_500_impl, + .adreno_impl = &qcom_adreno_smmu_500_impl, + .cfg = &qcom_smmu_impl0_cfg, + .actlrvar = sc7280_actlr, + .num_smmu = ARRAY_SIZE(sc7280_actlr), +}; static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { .impl = &qcom_smmu_500_impl, @@ -701,7 +734,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,qdu1000-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sc7180-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sc7180-smmu-v2", .data = &qcom_smmu_v2_data }, - { .compatible = "qcom,sc7280-smmu-500", .data = &qcom_smmu_500_impl0_data }, + { .compatible = "qcom,sc7280-smmu-500", .data = &sc7280_smmu_500_impl0_data }, { .compatible = "qcom,sc8180x-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sc8280xp-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sdm630-smmu-v2", .data = &qcom_smmu_v2_data },