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Bottomley" , "Andy Gross" , Bjorn Andersson , "Konrad Dybcio" , Krzysztof Kozlowski , Jinyoung Choi , Arthur Simchaev , Yoshihiro Shimoda , Keoseong Park , open list Subject: [PATCH v10 06/16] ufs: core: mcq: Configure resource regions Date: Wed, 7 Dec 2022 12:46:17 -0800 Message-ID: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: MDDbGsoyzmbQenUqdoHrckGczqDGPzfP X-Proofpoint-ORIG-GUID: MDDbGsoyzmbQenUqdoHrckGczqDGPzfP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-07_09,2022-12-07_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxlogscore=999 bulkscore=0 clxscore=1011 adultscore=0 mlxscore=0 priorityscore=1501 impostorscore=0 phishscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2212070174 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Define the mcq resources and add support to ioremap the resource regions. Co-developed-by: Can Guo Signed-off-by: Can Guo Signed-off-by: Asutosh Das Reviewed-by: Manivannan Sadhasivam Reviewed-by: Bart Van Assche --- drivers/ufs/core/ufs-mcq.c | 3 ++ drivers/ufs/core/ufshcd-priv.h | 8 ++++ drivers/ufs/host/ufs-qcom.c | 101 +++++++++++++++++++++++++++++++++++++++++ include/ufs/ufshcd.h | 30 ++++++++++++ 4 files changed, 142 insertions(+) diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 6ed3625..65c0037 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -119,6 +119,9 @@ int ufshcd_mcq_init(struct ufs_hba *hba) int ret; ret = ufshcd_mcq_config_nr_queues(hba); + if (ret) + return ret; + ret = ufshcd_vops_mcq_config_resource(hba); return ret; } diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h index 9368ba2..3e21242 100644 --- a/drivers/ufs/core/ufshcd-priv.h +++ b/drivers/ufs/core/ufshcd-priv.h @@ -227,6 +227,14 @@ static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba, hba->vops->config_scaling_param(hba, p, data); } +static inline int ufshcd_vops_mcq_config_resource(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->mcq_config_resource) + return hba->vops->mcq_config_resource(hba); + + return -EOPNOTSUPP; +} + extern const struct ufs_pm_lvl_states ufs_pm_lvl_states[]; /** diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 8ad1415..045f8ab 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -25,6 +25,12 @@ #define UFS_QCOM_DEFAULT_DBG_PRINT_EN \ (UFS_QCOM_DBG_PRINT_REGS_EN | UFS_QCOM_DBG_PRINT_TEST_BUS_EN) +#define MCQ_QCFGPTR_MASK GENMASK(7, 0) +#define MCQ_QCFGPTR_UNIT 0x200 +#define MCQ_SQATTR_OFFSET(c) \ + ((((c) >> 16) & MCQ_QCFGPTR_MASK) * MCQ_QCFGPTR_UNIT) +#define MCQ_QCFG_SIZE 0x40 + enum { TSTBUS_UAWM, TSTBUS_UARM, @@ -1424,6 +1430,100 @@ static void ufs_qcom_config_scaling_param(struct ufs_hba *hba, } #endif +/* Resources */ +static const struct ufshcd_res_info ufs_res_info[RES_MAX] = { + {.name = "ufs_mem",}, + {.name = "mcq",}, + /* Submission Queue DAO */ + {.name = "mcq_sqd",}, + /* Submission Queue Interrupt Status */ + {.name = "mcq_sqis",}, + /* Completion Queue DAO */ + {.name = "mcq_cqd",}, + /* Completion Queue Interrupt Status */ + {.name = "mcq_cqis",}, + /* MCQ vendor specific */ + {.name = "mcq_vs",}, +}; + +static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba) +{ + struct platform_device *pdev = to_platform_device(hba->dev); + struct ufshcd_res_info *res; + struct resource *res_mem, *res_mcq; + int i, ret = 0; + + memcpy(hba->res, ufs_res_info, sizeof(ufs_res_info)); + + for (i = 0; i < RES_MAX; i++) { + res = &hba->res[i]; + res->resource = platform_get_resource_byname(pdev, + IORESOURCE_MEM, + res->name); + if (!res->resource) { + dev_info(hba->dev, "Resource %s not provided\n", res->name); + if (i == RES_UFS) + return -ENOMEM; + continue; + } else if (i == RES_UFS) { + res_mem = res->resource; + res->base = hba->mmio_base; + continue; + } + + res->base = devm_ioremap_resource(hba->dev, res->resource); + if (IS_ERR(res->base)) { + dev_err(hba->dev, "Failed to map res %s, err=%d\n", + res->name, (int)PTR_ERR(res->base)); + res->base = NULL; + ret = PTR_ERR(res->base); + return ret; + } + } + + /* MCQ resource provided in DT */ + res = &hba->res[RES_MCQ]; + /* Bail if MCQ resource is provided */ + if (res->base) + goto out; + + /* Explicitly allocate MCQ resource from ufs_mem */ + res_mcq = devm_kzalloc(hba->dev, sizeof(*res_mcq), GFP_KERNEL); + if (!res_mcq) + return ret; + + res_mcq->start = res_mem->start + + MCQ_SQATTR_OFFSET(hba->mcq_capabilities); + res_mcq->end = res_mcq->start + hba->nr_hw_queues * MCQ_QCFG_SIZE - 1; + res_mcq->flags = res_mem->flags; + res_mcq->name = "mcq"; + + ret = insert_resource(&iomem_resource, res_mcq); + if (ret) { + dev_err(hba->dev, "Failed to insert MCQ resource, err=%d\n", + ret); + goto insert_res_err; + } + + res->base = devm_ioremap_resource(hba->dev, res_mcq); + if (IS_ERR(res->base)) { + dev_err(hba->dev, "MCQ registers mapping failed, err=%d\n", + (int)PTR_ERR(res->base)); + ret = PTR_ERR(res->base); + goto ioremap_err; + } + +out: + hba->mcq_base = res->base; + return 0; +ioremap_err: + res->base = NULL; + remove_resource(res_mcq); +insert_res_err: + devm_kfree(hba->dev, res_mcq); + return ret; +} + /* * struct ufs_hba_qcom_vops - UFS QCOM specific variant operations * @@ -1447,6 +1547,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .device_reset = ufs_qcom_device_reset, .config_scaling_param = ufs_qcom_config_scaling_param, .program_key = ufs_qcom_ice_program_key, + .mcq_config_resource = ufs_qcom_mcq_config_resource, }; /** diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 146b613..0e21a6a 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -297,6 +297,7 @@ struct ufs_pwr_mode_info { * @config_scaling_param: called to configure clock scaling parameters * @program_key: program or evict an inline encryption key * @event_notify: called to notify important events + * @mcq_config_resource: called to configure MCQ platform resources */ struct ufs_hba_variant_ops { const char *name; @@ -335,6 +336,7 @@ struct ufs_hba_variant_ops { const union ufs_crypto_cfg_entry *cfg, int slot); void (*event_notify)(struct ufs_hba *hba, enum ufs_event_type evt, void *data); + int (*mcq_config_resource)(struct ufs_hba *hba); }; /* clock gating state */ @@ -724,6 +726,30 @@ struct ufs_hba_monitor { }; /** + * struct ufshcd_res_info_t - MCQ related resource regions + * + * @name: resource name + * @resource: pointer to resource region + * @base: register base address + */ +struct ufshcd_res_info { + const char *name; + struct resource *resource; + void __iomem *base; +}; + +enum ufshcd_res { + RES_UFS, + RES_MCQ, + RES_MCQ_SQD, + RES_MCQ_SQIS, + RES_MCQ_CQD, + RES_MCQ_CQIS, + RES_MCQ_VS, + RES_MAX, +}; + +/** * struct ufs_hba - per adapter private structure * @mmio_base: UFSHCI base register address * @ucdl_base_addr: UFS Command Descriptor base address @@ -835,6 +861,8 @@ struct ufs_hba_monitor { * ufshcd_resume_complete() * @ext_iid_sup: is EXT_IID is supported by UFSHC * @mcq_sup: is mcq supported by UFSHC + * @res: array of resource info of MCQ registers + * @mcq_base: Multi circular queue registers base address */ struct ufs_hba { void __iomem *mmio_base; @@ -988,6 +1016,8 @@ struct ufs_hba { bool complete_put; bool ext_iid_sup; bool mcq_sup; + struct ufshcd_res_info res[RES_MAX]; + void __iomem *mcq_base; }; /* Returns true if clocks can be gated. Otherwise false */