From patchwork Fri Sep 8 11:16:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Segarra Fernandez X-Patchwork-Id: 721267 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53FB2EE57F8 for ; Fri, 8 Sep 2023 11:18:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239991AbjIHLSM (ORCPT ); Fri, 8 Sep 2023 07:18:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236689AbjIHLSL (ORCPT ); Fri, 8 Sep 2023 07:18:11 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B08801BF9 for ; Fri, 8 Sep 2023 04:18:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694171885; x=1725707885; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=rwLfjN5Jt2icmTQS8OIbJdwRiqRXVIvYPjdaAtSai4o=; b=ZzzjcCJ7bFin1uL+s8ymIj/vu5TmFE7bqDIylpWGD04M89MEKn2KtQit X8q6ytOhinym8+RhmAyuH+uhLmPFE1sLWkPqQqTwwt9IubKDBr+xe2rDs LjGoMEfvViJCQyjuDTX/sw4SZqbnkqJGB8q03j34B4drr1hJRBItcKryl 7uYhHkNKvaarIA4YyUpaU0RPpsYDV18U+If7Be/k+2KKCJRtZclbwE8E5 ooR2hJYAbA970zE4i3sMxIs2cBn1FZGRVYbyhGSaRpYW6GrNoD/lNSu37 DHtvJKwobuR86jjou0Bui4W72Z5iLGvZkeXL9Ff0dpQdbrqWmPfRvDKRl A==; X-IronPort-AV: E=McAfee;i="6600,9927,10826"; a="463998524" X-IronPort-AV: E=Sophos;i="6.02,236,1688454000"; d="scan'208";a="463998524" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2023 04:18:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10826"; a="777533262" X-IronPort-AV: E=Sophos;i="6.02,236,1688454000"; d="scan'208";a="777533262" Received: from r007s007_zp31l10c01.deacluster.intel.com (HELO fedora.deacluster.intel.com) ([10.219.171.169]) by orsmga001.jf.intel.com with ESMTP; 08 Sep 2023 04:18:04 -0700 From: Lucas Segarra Fernandez To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, Lucas Segarra Fernandez , Giovanni Cabiddu Subject: [PATCH v3 2/2] crypto: qat - add pm_status debugfs file Date: Fri, 8 Sep 2023 13:16:07 +0200 Message-ID: <20230908111625.64762-3-lucas.segarra.fernandez@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230908111625.64762-1-lucas.segarra.fernandez@intel.com> References: <20230908111625.64762-1-lucas.segarra.fernandez@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org QAT devices implement a mechanism that allows them to go autonomously to a low power state depending on the load. Expose power management info by providing the "pm_status" file under debugfs. This includes PM state, PM event log, PM event counters, PM HW CSRs, per-resource type constrain counters and per-domain power gating status specific to the QAT device. This information is retrieved from (1) the FW by means of ICP_QAT_FW_PM_INFO command, (2) CSRs and (3) counters collected by the device driver. In addition, add logic to keep track and report power management event interrupts and acks/nacks sent to FW to allow/prevent state transitions. Signed-off-by: Lucas Segarra Fernandez Reviewed-by: Giovanni Cabiddu --- Documentation/ABI/testing/debugfs-driver-qat | 9 + drivers/crypto/intel/qat/qat_common/Makefile | 2 + .../intel/qat/qat_common/adf_accel_devices.h | 13 + .../crypto/intel/qat/qat_common/adf_admin.c | 26 ++ .../intel/qat/qat_common/adf_common_drv.h | 1 + .../crypto/intel/qat/qat_common/adf_dbgfs.c | 3 + .../crypto/intel/qat/qat_common/adf_gen4_pm.c | 24 +- .../crypto/intel/qat/qat_common/adf_gen4_pm.h | 46 ++++ .../qat/qat_common/adf_gen4_pm_debugfs.c | 255 ++++++++++++++++++ .../intel/qat/qat_common/adf_pm_dbgfs.c | 46 ++++ .../intel/qat/qat_common/adf_pm_dbgfs.h | 12 + .../qat/qat_common/icp_qat_fw_init_admin.h | 35 +++ 12 files changed, 467 insertions(+), 5 deletions(-) create mode 100644 drivers/crypto/intel/qat/qat_common/adf_gen4_pm_debugfs.c create mode 100644 drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c create mode 100644 drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.h diff --git a/Documentation/ABI/testing/debugfs-driver-qat b/Documentation/ABI/testing/debugfs-driver-qat index 6731ffacc5f0..b93f8cbae63c 100644 --- a/Documentation/ABI/testing/debugfs-driver-qat +++ b/Documentation/ABI/testing/debugfs-driver-qat @@ -59,3 +59,12 @@ Description: (RO) Read returns the device health status. The driver does not monitor for Heartbeat. It is left for a user to poll the status periodically. + +What: /sys/kernel/debug/qat__/pm_status +Date: January 2024 +KernelVersion: 6.7 +Contact: qat-linux@intel.com +Description: (RO) Read returns power management information specific to the + QAT device. + + This attribute is only available for qat_4xxx devices. diff --git a/drivers/crypto/intel/qat/qat_common/Makefile b/drivers/crypto/intel/qat/qat_common/Makefile index 43622c7fca71..4ef3cccfeab4 100644 --- a/drivers/crypto/intel/qat/qat_common/Makefile +++ b/drivers/crypto/intel/qat/qat_common/Makefile @@ -33,6 +33,8 @@ intel_qat-$(CONFIG_DEBUG_FS) += adf_transport_debug.o \ adf_fw_counters.o \ adf_heartbeat.o \ adf_heartbeat_dbgfs.o \ + adf_pm_dbgfs.o \ + adf_gen4_pm_debugfs.o \ adf_dbgfs.o intel_qat-$(CONFIG_PCI_IOV) += adf_sriov.o adf_vf_isr.o adf_pfvf_utils.o \ diff --git a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h index e57abde66f4f..2551db178b1e 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h @@ -291,6 +291,18 @@ struct adf_dc_data { dma_addr_t ovf_buff_p; }; +struct adf_pm { + struct dentry *debugfs_pm_status; + bool present; + int idle_irq_counters; + int throttle_irq_counters; + int fw_irq_counters; + int host_ack_counter; + int host_nack_counter; + ssize_t (*print_pm_status)(struct adf_accel_dev *accel_dev, char __user *buf, + size_t count, loff_t *pos); +}; + struct adf_accel_dev { struct adf_etr_data *transport; struct adf_hw_device_data *hw_device; @@ -298,6 +310,7 @@ struct adf_accel_dev { struct adf_fw_loader_data *fw_loader; struct adf_admin_comms *admin; struct adf_dc_data *dc_data; + struct adf_pm power_management; struct list_head crypto_list; struct list_head compression_list; unsigned long status; diff --git a/drivers/crypto/intel/qat/qat_common/adf_admin.c b/drivers/crypto/intel/qat/qat_common/adf_admin.c index ff790823b868..275dadbbd611 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_admin.c +++ b/drivers/crypto/intel/qat/qat_common/adf_admin.c @@ -348,6 +348,32 @@ int adf_init_admin_pm(struct adf_accel_dev *accel_dev, u32 idle_delay) return adf_send_admin(accel_dev, &req, &resp, ae_mask); } +int adf_get_pm_info(struct adf_accel_dev *accel_dev, dma_addr_t p_state_addr, size_t buff_size) +{ + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct icp_qat_fw_init_admin_req req = { }; + struct icp_qat_fw_init_admin_resp resp; + u32 ae_mask = hw_data->admin_ae_mask; + int ret; + + /* Query pm info via init/admin cmd */ + if (!accel_dev->admin) { + dev_err(&GET_DEV(accel_dev), "adf_admin is not available\n"); + return -EFAULT; + } + + req.cmd_id = ICP_QAT_FW_PM_INFO; + req.init_cfg_sz = buff_size; + req.init_cfg_ptr = p_state_addr; + + ret = adf_send_admin(accel_dev, &req, &resp, ae_mask); + if (ret) + dev_err(&GET_DEV(accel_dev), + "Failed to query power-management info\n"); + + return ret; +} + int adf_init_admin_comms(struct adf_accel_dev *accel_dev) { struct adf_admin_comms *admin; diff --git a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h index 673b5044c62a..4f991c7a7b26 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h +++ b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h @@ -93,6 +93,7 @@ int adf_init_admin_pm(struct adf_accel_dev *accel_dev, u32 idle_delay); int adf_send_admin_tim_sync(struct adf_accel_dev *accel_dev, u32 cnt); int adf_send_admin_hb_timer(struct adf_accel_dev *accel_dev, uint32_t ticks); int adf_get_fw_timestamp(struct adf_accel_dev *accel_dev, u64 *timestamp); +int adf_get_pm_info(struct adf_accel_dev *accel_dev, dma_addr_t p_state_addr, size_t buff_size); int adf_init_arb(struct adf_accel_dev *accel_dev); void adf_exit_arb(struct adf_accel_dev *accel_dev); void adf_update_ring_arb(struct adf_etr_ring_data *ring); diff --git a/drivers/crypto/intel/qat/qat_common/adf_dbgfs.c b/drivers/crypto/intel/qat/qat_common/adf_dbgfs.c index 04845f8d72be..395bb493f20c 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_dbgfs.c +++ b/drivers/crypto/intel/qat/qat_common/adf_dbgfs.c @@ -8,6 +8,7 @@ #include "adf_dbgfs.h" #include "adf_fw_counters.h" #include "adf_heartbeat_dbgfs.h" +#include "adf_pm_dbgfs.h" /** * adf_dbgfs_init() - add persistent debugfs entries @@ -62,6 +63,7 @@ void adf_dbgfs_add(struct adf_accel_dev *accel_dev) if (!accel_dev->is_vf) { adf_fw_counters_dbgfs_add(accel_dev); adf_heartbeat_dbgfs_add(accel_dev); + adf_pm_dbgfs_add(accel_dev); } } @@ -75,6 +77,7 @@ void adf_dbgfs_rm(struct adf_accel_dev *accel_dev) return; if (!accel_dev->is_vf) { + adf_pm_dbgfs_rm(accel_dev); adf_heartbeat_dbgfs_rm(accel_dev); adf_fw_counters_dbgfs_rm(accel_dev); } diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.c b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.c index 3bde8759c2a2..c44947f8953e 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.c +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.c @@ -13,11 +13,6 @@ #include "adf_gen4_hw_data.h" #include "adf_cfg.h" -enum qat_pm_host_msg { - PM_NO_CHANGE = 0, - PM_SET_MIN, -}; - struct adf_gen4_pm_data { struct work_struct pm_irq_work; struct adf_accel_dev *accel_dev; @@ -28,6 +23,7 @@ static int send_host_msg(struct adf_accel_dev *accel_dev) { char pm_idle_support_cfg[ADF_CFG_MAX_VAL_LEN_IN_BYTES] = {}; void __iomem *pmisc = adf_get_pmisc_base(accel_dev); + struct adf_pm *pm = &accel_dev->power_management; bool pm_idle_support; u32 msg; int ret; @@ -42,6 +38,11 @@ static int send_host_msg(struct adf_accel_dev *accel_dev) if (ret) pm_idle_support = true; + if (pm_idle_support) + pm->host_ack_counter++; + else + pm->host_nack_counter++; + /* Send HOST_MSG */ msg = FIELD_PREP(ADF_GEN4_PM_MSG_PAYLOAD_BIT_MASK, pm_idle_support ? PM_SET_MIN : PM_NO_CHANGE); @@ -62,17 +63,27 @@ static void pm_bh_handler(struct work_struct *work) container_of(work, struct adf_gen4_pm_data, pm_irq_work); struct adf_accel_dev *accel_dev = pm_data->accel_dev; void __iomem *pmisc = adf_get_pmisc_base(accel_dev); + struct adf_pm *pm = &accel_dev->power_management; u32 pm_int_sts = pm_data->pm_int_sts; u32 val; /* PM Idle interrupt */ if (pm_int_sts & ADF_GEN4_PM_IDLE_STS) { + pm->idle_irq_counters++; /* Issue host message to FW */ if (send_host_msg(accel_dev)) dev_warn_ratelimited(&GET_DEV(accel_dev), "Failed to send host msg to FW\n"); } + /* PM throttle interrupt */ + if (pm_int_sts & ADF_GEN4_PM_THR_STS) + pm->throttle_irq_counters++; + + /* PM fw interrupt */ + if (pm_int_sts & ADF_GEN4_PM_FW_INT_STS) + pm->fw_irq_counters++; + /* Clear interrupt status */ ADF_CSR_WR(pmisc, ADF_GEN4_PM_INTERRUPT, pm_int_sts); @@ -132,6 +143,9 @@ int adf_gen4_enable_pm(struct adf_accel_dev *accel_dev) if (ret) return ret; + /* Initialize PM internal data */ + adf_gen4_init_dev_pm_data(accel_dev); + /* Enable default PM interrupts: IDLE, THROTTLE */ val = ADF_CSR_RD(pmisc, ADF_GEN4_PM_INTERRUPT); val |= ADF_GEN4_PM_INT_EN_DEFAULT; diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h index 39d37b352b45..a49352b79a7a 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h @@ -7,6 +7,11 @@ struct adf_accel_dev; +enum qat_pm_host_msg { + PM_NO_CHANGE = 0, + PM_SET_MIN, +}; + /* Power management registers */ #define ADF_GEN4_PM_HOST_MSG (0x50A01C) @@ -41,7 +46,48 @@ struct adf_accel_dev; #define ADF_GEN4_PM_MAX_IDLE_FILTER (0x7) #define ADF_GEN4_PM_DEFAULT_IDLE_SUPPORT (0x1) +/* PM CSRs fields masks */ +#define ADF_GEN4_PM_DOMAIN_POWER_GATED_MASK GENMASK(15, 0) +#define ADF_GEN4_PM_SSM_PM_ENABLE_MASK GENMASK(15, 0) +#define ADF_GEN4_PM_IDLE_FILTER_MASK GENMASK(5, 3) +#define ADF_GEN4_PM_IDLE_ENABLE_MASK BIT(2) +#define ADF_GEN4_PM_ENABLE_PM_MASK BIT(21) +#define ADF_GEN4_PM_ENABLE_PM_IDLE_MASK BIT(22) +#define ADF_GEN4_PM_ENABLE_DEEP_PM_IDLE_MASK BIT(23) +#define ADF_GEN4_PM_CURRENT_WP_MASK GENMASK(19, 11) +#define ADF_GEN4_PM_CPM_PM_STATE_MASK GENMASK(22, 20) +#define ADF_GEN4_PM_PENDING_WP_MASK GENMASK(31, 23) +#define ADF_GEN4_PM_THR_VALUE_MASK GENMASK(6, 4) +#define ADF_GEN4_PM_MIN_PWR_ACK_MASK BIT(7) +#define ADF_GEN4_PM_MIN_PWR_ACK_PENDING_MASK BIT(17) +#define ADF_GEN4_PM_CPR_ACTIVE_COUNT_MASK BIT(0) +#define ADF_GEN4_PM_CPR_MANAGED_COUNT_MASK BIT(0) +#define ADF_GEN4_PM_XLT_ACTIVE_COUNT_MASK BIT(1) +#define ADF_GEN4_PM_XLT_MANAGED_COUNT_MASK BIT(1) +#define ADF_GEN4_PM_DCPR_ACTIVE_COUNT_MASK GENMASK(3, 2) +#define ADF_GEN4_PM_DCPR_MANAGED_COUNT_MASK GENMASK(3, 2) +#define ADF_GEN4_PM_PKE_ACTIVE_COUNT_MASK GENMASK(8, 4) +#define ADF_GEN4_PM_PKE_MANAGED_COUNT_MASK GENMASK(8, 4) +#define ADF_GEN4_PM_WAT_ACTIVE_COUNT_MASK GENMASK(13, 9) +#define ADF_GEN4_PM_WAT_MANAGED_COUNT_MASK GENMASK(13, 9) +#define ADF_GEN4_PM_WCP_ACTIVE_COUNT_MASK GENMASK(18, 14) +#define ADF_GEN4_PM_WCP_MANAGED_COUNT_MASK GENMASK(18, 14) +#define ADF_GEN4_PM_UCS_ACTIVE_COUNT_MASK GENMASK(20, 19) +#define ADF_GEN4_PM_UCS_MANAGED_COUNT_MASK GENMASK(20, 19) +#define ADF_GEN4_PM_CPH_ACTIVE_COUNT_MASK GENMASK(24, 21) +#define ADF_GEN4_PM_CPH_MANAGED_COUNT_MASK GENMASK(24, 21) +#define ADF_GEN4_PM_ATH_ACTIVE_COUNT_MASK GENMASK(28, 25) +#define ADF_GEN4_PM_ATH_MANAGED_COUNT_MASK GENMASK(28, 25) + int adf_gen4_enable_pm(struct adf_accel_dev *accel_dev); bool adf_gen4_handle_pm_interrupt(struct adf_accel_dev *accel_dev); +#ifdef CONFIG_DEBUG_FS +void adf_gen4_init_dev_pm_data(struct adf_accel_dev *accel_dev); +#else +static inline void adf_gen4_init_dev_pm_data(struct adf_accel_dev *accel_dev) +{ +} +#endif /* CONFIG_DEBUG_FS */ + #endif diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm_debugfs.c b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm_debugfs.c new file mode 100644 index 000000000000..0f38a63f80fb --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm_debugfs.c @@ -0,0 +1,255 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2023 Intel Corporation */ +#include +#include +#include +#include +#include +#include +#include + +#include "adf_accel_devices.h" +#include "adf_common_drv.h" +#include "adf_gen4_pm.h" +#include "icp_qat_fw_init_admin.h" + +/* + * This is needed because a variable is used to index the mask at + * pm_scnprint_table(), making it not compile time constant, so the compile + * asserts from FIELD_GET() or u32_get_bits() won't be fulfilled. + */ +#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) + +#define PM_INFO_MEMBER_OFF(member) \ + (offsetof(struct icp_qat_fw_init_admin_pm_info, member) / sizeof(u32)) + +#define PM_INFO_REGSET_ENTRY_MASK(_reg_, _field_, _mask_) \ +{ \ + .reg_offset = PM_INFO_MEMBER_OFF(_reg_), \ + .key = __stringify(_field_), \ + .field_mask = _mask_, \ +} + +#define PM_INFO_REGSET_ENTRY32(_reg_, _field_) \ + PM_INFO_REGSET_ENTRY_MASK(_reg_, _field_, GENMASK(31, 0)) + +#define PM_INFO_REGSET_ENTRY(_reg_, _field_) \ + PM_INFO_REGSET_ENTRY_MASK(_reg_, _field_, ADF_GEN4_PM_##_field_##_MASK) + +#define PM_INFO_MAX_KEY_LEN 21 + +struct pm_status_row { + int reg_offset; + u32 field_mask; + const char *key; +}; + +static struct pm_status_row pm_fuse_rows[] = { + PM_INFO_REGSET_ENTRY(fusectl0, ENABLE_PM), + PM_INFO_REGSET_ENTRY(fusectl0, ENABLE_PM_IDLE), + PM_INFO_REGSET_ENTRY(fusectl0, ENABLE_DEEP_PM_IDLE), +}; + +static struct pm_status_row pm_info_rows[] = { + PM_INFO_REGSET_ENTRY(pm.status, CPM_PM_STATE), + PM_INFO_REGSET_ENTRY(pm.status, PENDING_WP), + PM_INFO_REGSET_ENTRY(pm.status, CURRENT_WP), + PM_INFO_REGSET_ENTRY(pm.fw_init, IDLE_ENABLE), + PM_INFO_REGSET_ENTRY(pm.fw_init, IDLE_FILTER), + PM_INFO_REGSET_ENTRY(pm.main, MIN_PWR_ACK), + PM_INFO_REGSET_ENTRY(pm.thread, MIN_PWR_ACK_PENDING), + PM_INFO_REGSET_ENTRY(pm.main, THR_VALUE), +}; + +static struct pm_status_row pm_ssm_rows[] = { + PM_INFO_REGSET_ENTRY(ssm.pm_enable, SSM_PM_ENABLE), + PM_INFO_REGSET_ENTRY32(ssm.active_constraint, ACTIVE_CONSTRAINT), + PM_INFO_REGSET_ENTRY(ssm.pm_domain_status, DOMAIN_POWER_GATED), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, ATH_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, CPH_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, PKE_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, CPR_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, DCPR_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, UCS_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, XLT_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, WAT_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_active_status, WCP_ACTIVE_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, ATH_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, CPH_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, PKE_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, CPR_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, DCPR_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, UCS_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, XLT_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, WAT_MANAGED_COUNT), + PM_INFO_REGSET_ENTRY(ssm.pm_managed_status, WCP_MANAGED_COUNT), +}; + +static struct pm_status_row pm_log_rows[] = { + PM_INFO_REGSET_ENTRY32(event_counters.host_msg, HOST_MSG_EVENT_COUNT), + PM_INFO_REGSET_ENTRY32(event_counters.sys_pm, SYS_PM_EVENT_COUNT), + PM_INFO_REGSET_ENTRY32(event_counters.local_ssm, SSM_EVENT_COUNT), + PM_INFO_REGSET_ENTRY32(event_counters.timer, TIMER_EVENT_COUNT), + PM_INFO_REGSET_ENTRY32(event_counters.unknown, UNKNOWN_EVENT_COUNT), +}; + +static struct pm_status_row pm_event_rows[ICP_QAT_NUMBER_OF_PM_EVENTS] = { + PM_INFO_REGSET_ENTRY32(event_log[0], EVENT0), + PM_INFO_REGSET_ENTRY32(event_log[1], EVENT1), + PM_INFO_REGSET_ENTRY32(event_log[2], EVENT2), + PM_INFO_REGSET_ENTRY32(event_log[3], EVENT3), + PM_INFO_REGSET_ENTRY32(event_log[4], EVENT4), + PM_INFO_REGSET_ENTRY32(event_log[5], EVENT5), + PM_INFO_REGSET_ENTRY32(event_log[6], EVENT6), + PM_INFO_REGSET_ENTRY32(event_log[7], EVENT7), +}; + +static struct pm_status_row pm_csrs_rows[] = { + PM_INFO_REGSET_ENTRY32(pm.fw_init, CPM_PM_FW_INIT), + PM_INFO_REGSET_ENTRY32(pm.status, CPM_PM_STATUS), + PM_INFO_REGSET_ENTRY32(pm.main, CPM_PM_MASTER_FW), + PM_INFO_REGSET_ENTRY32(pm.pwrreq, CPM_PM_PWRREQ), +}; + +static int pm_scnprint_table(char *buff, struct pm_status_row *table, u32 *pm_info_regs, + size_t buff_size, int table_len, bool lowercase) +{ + char key[PM_INFO_MAX_KEY_LEN]; + int wr = 0; + int i; + + for (i = 0; i < table_len; i++) { + if (lowercase) + string_lower(key, table[i].key); + else + string_upper(key, table[i].key); + + wr += scnprintf(&buff[wr], buff_size - wr, "%s: %#x\n", key, + field_get(table[i].field_mask, pm_info_regs[table[i].reg_offset])); + } + + return wr; +} + +static int pm_scnprint_table_upper_keys(char *buff, struct pm_status_row *table, u32 *pm_info_regs, + size_t buff_size, int table_len) +{ + return pm_scnprint_table(buff, table, pm_info_regs, buff_size, table_len, false); +} + +static int pm_scnprint_table_lower_keys(char *buff, struct pm_status_row *table, u32 *pm_info_regs, + size_t buff_size, int table_len) +{ + return pm_scnprint_table(buff, table, pm_info_regs, buff_size, table_len, true); +} + +static_assert(sizeof(struct icp_qat_fw_init_admin_pm_info) < PAGE_SIZE); + +static ssize_t adf_gen4_print_pm_status(struct adf_accel_dev *accel_dev, char __user *buf, + size_t count, loff_t *pos) +{ + void __iomem *pmisc = adf_get_pmisc_base(accel_dev); + struct adf_pm *pm = &accel_dev->power_management; + struct icp_qat_fw_init_admin_pm_info *pm_info; + dma_addr_t p_state_addr; + u32 *pm_info_regs; + char *pm_kv; + int len; + u32 val; + int ret; + + pm_info = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!pm_info) + return -ENOMEM; + + pm_kv = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!pm_kv) { + ret = -ENOMEM; + goto out_free; + } + + p_state_addr = dma_map_single(&GET_DEV(accel_dev), pm_info, PAGE_SIZE, + DMA_FROM_DEVICE); + ret = dma_mapping_error(&GET_DEV(accel_dev), p_state_addr); + if (ret) + goto out_free; + + /* Query PM info from QAT FW */ + ret = adf_get_pm_info(accel_dev, p_state_addr, PAGE_SIZE); + dma_unmap_single(&GET_DEV(accel_dev), p_state_addr, PAGE_SIZE, + DMA_FROM_DEVICE); + if (ret) + goto out_free; + + pm_info_regs = (u32 *)pm_info; + + /* Fusectl related */ + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "----------- PM Fuse info ---------\n"); + len += pm_scnprint_table_lower_keys(&pm_kv[len], pm_fuse_rows, pm_info_regs, + PAGE_SIZE - len, ARRAY_SIZE(pm_fuse_rows)); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "max_pwrreq: %#x\n", + pm_info->max_pwrreq); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "min_pwrreq: %#x\n", + pm_info->min_pwrreq); + + /* PM related */ + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "------------ PM Info ------------\n"); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "power_level: %s\n", + pm_info->pwr_state == PM_SET_MIN ? "min" : "max"); + len += pm_scnprint_table_lower_keys(&pm_kv[len], pm_info_rows, pm_info_regs, + PAGE_SIZE - len, ARRAY_SIZE(pm_info_rows)); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "pm_mode: STATIC\n"); + + /* SSM related */ + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "----------- SSM_PM Info ----------\n"); + len += pm_scnprint_table_lower_keys(&pm_kv[len], pm_ssm_rows, pm_info_regs, PAGE_SIZE - len, + ARRAY_SIZE(pm_ssm_rows)); + + /* Log related */ + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "------------- PM Log -------------\n"); + len += pm_scnprint_table_lower_keys(&pm_kv[len], pm_log_rows, pm_info_regs, PAGE_SIZE - len, + ARRAY_SIZE(pm_log_rows)); + + len += pm_scnprint_table_lower_keys(&pm_kv[len], pm_event_rows, pm_info_regs, + PAGE_SIZE - len, ARRAY_SIZE(pm_event_rows)); + + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "idle_irq_count: %#x\n", + pm->idle_irq_counters); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "fw_irq_count: %#x\n", + pm->fw_irq_counters); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "throttle_irq_count: %#x\n", + pm->throttle_irq_counters); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "host_ack_count: %#x\n", + pm->host_ack_counter); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, "host_nack_count: %#x\n", + pm->host_nack_counter); + + /* CSRs content */ + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "----------- HW PM CSRs -----------\n"); + len += pm_scnprint_table_upper_keys(&pm_kv[len], pm_csrs_rows, pm_info_regs, + PAGE_SIZE - len, ARRAY_SIZE(pm_csrs_rows)); + + val = ADF_CSR_RD(pmisc, ADF_GEN4_PM_HOST_MSG); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "CPM_PM_HOST_MSG: %#x\n", val); + val = ADF_CSR_RD(pmisc, ADF_GEN4_PM_INTERRUPT); + len += scnprintf(&pm_kv[len], PAGE_SIZE - len, + "CPM_PM_INTERRUPT: %#x\n", val); + ret = simple_read_from_buffer(buf, count, pos, pm_kv, len); + +out_free: + kfree(pm_info); + kfree(pm_kv); + return ret; +} + +void adf_gen4_init_dev_pm_data(struct adf_accel_dev *accel_dev) +{ + accel_dev->power_management.print_pm_status = adf_gen4_print_pm_status; + accel_dev->power_management.present = true; +} diff --git a/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c new file mode 100644 index 000000000000..239f39a5a4b6 --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2023 Intel Corporation */ +#include +#include +#include + +#include "adf_accel_devices.h" +#include "adf_pm_dbgfs.h" + +static ssize_t pm_status_read(struct file *f, char __user *buf, size_t count, loff_t *pos) +{ + struct adf_accel_dev *accel_dev = file_inode(f)->i_private; + struct adf_pm pm = accel_dev->power_management; + + if (pm.print_pm_status) + return pm.print_pm_status(accel_dev, buf, count, pos); + + return count; +} + +static const struct file_operations pm_status_fops = { + .owner = THIS_MODULE, + .read = pm_status_read, +}; + +void adf_pm_dbgfs_add(struct adf_accel_dev *accel_dev) +{ + struct adf_pm *pm = &accel_dev->power_management; + + if (!pm->present || !pm->print_pm_status) + return; + + pm->debugfs_pm_status = debugfs_create_file("pm_status", 0400, accel_dev->debugfs_dir, + accel_dev, &pm_status_fops); +} + +void adf_pm_dbgfs_rm(struct adf_accel_dev *accel_dev) +{ + struct adf_pm *pm = &accel_dev->power_management; + + if (!pm->present) + return; + + debugfs_remove(pm->debugfs_pm_status); + pm->debugfs_pm_status = NULL; +} diff --git a/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.h b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.h new file mode 100644 index 000000000000..83632e5aa097 --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright(c) 2023 Intel Corporation */ + +#ifndef ADF_PM_DBGFS_H_ +#define ADF_PM_DBGFS_H_ + +struct adf_accel_dev; + +void adf_pm_dbgfs_rm(struct adf_accel_dev *accel_dev); +void adf_pm_dbgfs_add(struct adf_accel_dev *accel_dev); + +#endif /* ADF_PM_DBGFS_H_ */ diff --git a/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h b/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h index 3e968a4bcc9c..791be0203797 100644 --- a/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h +++ b/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h @@ -19,6 +19,7 @@ enum icp_qat_fw_init_admin_cmd_id { ICP_QAT_FW_HEARTBEAT_TIMER_SET = 13, ICP_QAT_FW_TIMER_GET = 19, ICP_QAT_FW_PM_STATE_CONFIG = 128, + ICP_QAT_FW_PM_INFO = 129, }; enum icp_qat_fw_init_admin_resp_status { @@ -107,4 +108,38 @@ struct icp_qat_fw_init_admin_resp { #define ICP_QAT_FW_SYNC ICP_QAT_FW_HEARTBEAT_SYNC +#define ICP_QAT_NUMBER_OF_PM_EVENTS 8 + +struct icp_qat_fw_init_admin_pm_info { + __u16 max_pwrreq; + __u16 min_pwrreq; + __u16 resvrd1; + __u8 pwr_state; + __u8 resvrd2; + __u32 fusectl0; + struct_group(event_counters, + __u32 sys_pm; + __u32 host_msg; + __u32 unknown; + __u32 local_ssm; + __u32 timer; + ); + __u32 event_log[ICP_QAT_NUMBER_OF_PM_EVENTS]; + struct_group(pm, + __u32 fw_init; + __u32 pwrreq; + __u32 status; + __u32 main; + __u32 thread; + ); + struct_group(ssm, + __u32 pm_enable; + __u32 pm_active_status; + __u32 pm_managed_status; + __u32 pm_domain_status; + __u32 active_constraint; + ); + __u32 resvrd3[6]; +}; + #endif