From patchwork Wed Aug 28 22:29:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782052 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 7269D1AC8A9; Wed, 28 Aug 2024 22:29:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884179; cv=none; b=IKMYvielWX+GmReANG/kHLVkJmeYe+nEfvus2fZPhMzHVaG7MlSuI4OU4dgxm0RJKVr0ofK/i94Ay1f46csw/yuFs6V0uTts3C/lVTBP/nL8DTRnUpQp/qsF+P+UZp1ea/63ynBUYZdaGmrlyTG3FyhIL5D6COkUV4nHz8OsMTA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884179; c=relaxed/simple; bh=3DMa12SWWXAxp33WniB6vGpQ8R/Wss/8rFlxe49ps5w=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sciZXYgrrQuZf4UWKZsarc06I07ChEhxAxDxzuPxTPpgwEVtl+waDgj5asiQdBuYknHzCPt+qCf1dZVs1TT2wgWRc4eAvgSIZ6sp1ReYnJWxwVDWHvOnUGEpungyCnT3dxkKjH/SxKjIw4hGq0qeHcx/JippHxCeItMdUVp4gNs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=JYLXuLQE; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="JYLXuLQE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724884177; x=1756420177; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=3DMa12SWWXAxp33WniB6vGpQ8R/Wss/8rFlxe49ps5w=; b=JYLXuLQEAZcNoEWm1+TFjFhql23UheqskuI5rrTT7XqSDkhwMhgWxnld 66vB0fTtob+yzY9Ea3t1lMlko+sgyaEq76OP3budX8cqUsrA4r0hhGIjM l+dn9/ws8diaOYBmFevfthmaz4GKb7L3T3MupcD6tk3Mo4oUaOMO7NO2M B3ghnM0Hkpc6KJxJ9BLNckNx+3yoC+Wa6RY94u5/MC4SrL8oW1b3rnhSm xFg2z5LZ9TTAmgT4S4yfpj2LfxiHunRWBp1E90DbqH0YgNUd4fLzT1beF ND4kCMfIl/ZLIBLy+4kY+LhkH1ZvBGz2uvEHz9hp/aqfB3Xv9az57+Unp w==; X-CSE-ConnectionGUID: nwbfTzUrQuasSaRAYyJUCw== X-CSE-MsgGUID: YpNqcLpATaOxl5LE+KZNMQ== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406456" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406456" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:36 -0700 X-CSE-ConnectionGUID: CAohibdlTV677ypAd28kfA== X-CSE-MsgGUID: VwRqeDiMRdG22XNK4TVqsg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271791" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:36 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 01/11] platform/x86:intel/pmc: Move PMC Core related functions Date: Wed, 28 Aug 2024 15:29:16 -0700 Message-ID: <20240828222932.1279508-2-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Move functions that implements PMC Core feature from core_ssram.c to core.c. This patch is a preparation step to introduce a new SSRAM Telemetry driver for the SSRAM device. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/core.c | 168 +++++++++++++++++++ drivers/platform/x86/intel/pmc/core.h | 8 + drivers/platform/x86/intel/pmc/core_ssram.c | 173 -------------------- 3 files changed, 176 insertions(+), 173 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index 01ae71c6df59..630ce2087552 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1604,6 +1604,173 @@ static const struct dev_pm_ops pmc_core_pm_ops = { SET_LATE_SYSTEM_SLEEP_PM_OPS(pmc_core_suspend, pmc_core_resume) }; +static u32 pmc_core_find_guid(struct pmc_info *list, const struct pmc_reg_map *map) +{ + for (; list->map; ++list) + if (list->map == map) + return list->guid; + + return 0; +} + +static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) +{ + struct telem_endpoint *ep; + const u8 *lpm_indices; + int num_maps, mode_offset = 0; + int ret, mode, i; + int lpm_size; + u32 guid; + + lpm_indices = pmc->map->lpm_reg_index; + num_maps = pmc->map->lpm_num_maps; + lpm_size = LPM_MAX_NUM_MODES * num_maps; + + guid = pmc_core_find_guid(pmcdev->regmap_list, pmc->map); + if (!guid) + return -ENXIO; + + ep = pmt_telem_find_and_register_endpoint(pmcdev->ssram_pcidev, guid, 0); + if (IS_ERR(ep)) { + dev_dbg(&pmcdev->pdev->dev, "couldn't get telem endpoint %ld", + PTR_ERR(ep)); + return -EPROBE_DEFER; + } + + pmc->lpm_req_regs = devm_kzalloc(&pmcdev->pdev->dev, + lpm_size * sizeof(u32), + GFP_KERNEL); + if (!pmc->lpm_req_regs) { + ret = -ENOMEM; + goto unregister_ep; + } + + /* + * PMC Low Power Mode (LPM) table + * + * In telemetry space, the LPM table contains a 4 byte header followed + * by 8 consecutive mode blocks (one for each LPM mode). Each block + * has a 4 byte header followed by a set of registers that describe the + * IP state requirements for the given mode. The IP mapping is platform + * specific but the same for each block, making for easy analysis. + * Platforms only use a subset of the space to track the requirements + * for their IPs. Callers provide the requirement registers they use as + * a list of indices. Each requirement register is associated with an + * IP map that's maintained by the caller. + * + * Header + * +----+----------------------------+----------------------------+ + * | 0 | REVISION | ENABLED MODES | + * +----+--------------+-------------+-------------+--------------+ + * + * Low Power Mode 0 Block + * +----+--------------+-------------+-------------+--------------+ + * | 1 | SUB ID | SIZE | MAJOR | MINOR | + * +----+--------------+-------------+-------------+--------------+ + * | 2 | LPM0 Requirements 0 | + * +----+---------------------------------------------------------+ + * | | ... | + * +----+---------------------------------------------------------+ + * | 29 | LPM0 Requirements 27 | + * +----+---------------------------------------------------------+ + * + * ... + * + * Low Power Mode 7 Block + * +----+--------------+-------------+-------------+--------------+ + * | | SUB ID | SIZE | MAJOR | MINOR | + * +----+--------------+-------------+-------------+--------------+ + * | 60 | LPM7 Requirements 0 | + * +----+---------------------------------------------------------+ + * | | ... | + * +----+---------------------------------------------------------+ + * | 87 | LPM7 Requirements 27 | + * +----+---------------------------------------------------------+ + * + */ + mode_offset = LPM_HEADER_OFFSET + LPM_MODE_OFFSET; + pmc_for_each_mode(i, mode, pmcdev) { + u32 *req_offset = pmc->lpm_req_regs + (mode * num_maps); + int m; + + for (m = 0; m < num_maps; m++) { + u8 sample_id = lpm_indices[m] + mode_offset; + + ret = pmt_telem_read32(ep, sample_id, req_offset, 1); + if (ret) { + dev_err(&pmcdev->pdev->dev, + "couldn't read Low Power Mode requirements: %d\n", ret); + devm_kfree(&pmcdev->pdev->dev, pmc->lpm_req_regs); + goto unregister_ep; + } + ++req_offset; + } + mode_offset += LPM_REG_COUNT + LPM_MODE_OFFSET; + } + +unregister_ep: + pmt_telem_unregister_endpoint(ep); + + return ret; +} + +int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev) +{ + int ret, i; + + if (!pmcdev->ssram_pcidev) + return -ENODEV; + + for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) { + if (!pmcdev->pmcs[i]) + continue; + + ret = pmc_core_get_lpm_req(pmcdev, pmcdev->pmcs[i]); + if (ret) + return ret; + } + + return 0; +} + +const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid) +{ + for (; list->map; ++list) + if (devid == list->devid) + return list->map; + + return NULL; +} + +int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, + const struct pmc_reg_map *reg_map, int pmc_index) +{ + struct pmc *pmc = pmcdev->pmcs[pmc_index]; + + if (!pwrm_base) + return -ENODEV; + + /* Memory for primary PMC has been allocated in core.c */ + if (!pmc) { + pmc = devm_kzalloc(&pmcdev->pdev->dev, sizeof(*pmc), GFP_KERNEL); + if (!pmc) + return -ENOMEM; + } + + pmc->map = reg_map; + pmc->base_addr = pwrm_base; + pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length); + + if (!pmc->regbase) { + devm_kfree(&pmcdev->pdev->dev, pmc); + return -ENOMEM; + } + + pmcdev->pmcs[pmc_index] = pmc; + + return 0; +} + static const struct acpi_device_id pmc_core_acpi_ids[] = { {"INT33A1", 0}, /* _HID for Intel Power Engine, _CID PNP0D80*/ { } @@ -1623,5 +1790,6 @@ static struct platform_driver pmc_core_driver = { module_platform_driver(pmc_core_driver); +MODULE_IMPORT_NS(INTEL_PMT_TELEMETRY); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Intel PMC Core Driver"); diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index ea04de7eb9e8..9a1cc01f31d9 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -24,6 +24,11 @@ struct telem_endpoint; #define MAX_NUM_PMC 3 #define S0IX_BLK_SIZE 4 +/* PCH query */ +#define LPM_HEADER_OFFSET 1 +#define LPM_REG_COUNT 28 +#define LPM_MODE_OFFSET 1 + /* Sunrise Point Power Management Controller PCI Device ID */ #define SPT_PMC_PCI_DEVICE_ID 0x9d21 #define SPT_PMC_BASE_ADDR_OFFSET 0x48 @@ -589,6 +594,9 @@ extern void pmc_core_punit_pmt_init(struct pmc_dev *pmcdev, u32 guid); extern void pmc_core_set_device_d3(unsigned int device); extern int pmc_core_ssram_init(struct pmc_dev *pmcdev, int func); +extern const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid); +extern int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, + const struct pmc_reg_map *reg_map, int pmc_index); int spt_core_init(struct pmc_dev *pmcdev); int cnp_core_init(struct pmc_dev *pmcdev); diff --git a/drivers/platform/x86/intel/pmc/core_ssram.c b/drivers/platform/x86/intel/pmc/core_ssram.c index 1bde86c54eb9..0a2bfca5ff41 100644 --- a/drivers/platform/x86/intel/pmc/core_ssram.c +++ b/drivers/platform/x86/intel/pmc/core_ssram.c @@ -24,142 +24,8 @@ #define SSRAM_IOE_OFFSET 0x68 #define SSRAM_DEVID_OFFSET 0x70 -/* PCH query */ -#define LPM_HEADER_OFFSET 1 -#define LPM_REG_COUNT 28 -#define LPM_MODE_OFFSET 1 - DEFINE_FREE(pmc_core_iounmap, void __iomem *, iounmap(_T)); -static u32 pmc_core_find_guid(struct pmc_info *list, const struct pmc_reg_map *map) -{ - for (; list->map; ++list) - if (list->map == map) - return list->guid; - - return 0; -} - -static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) -{ - struct telem_endpoint *ep; - const u8 *lpm_indices; - int num_maps, mode_offset = 0; - int ret, mode, i; - int lpm_size; - u32 guid; - - lpm_indices = pmc->map->lpm_reg_index; - num_maps = pmc->map->lpm_num_maps; - lpm_size = LPM_MAX_NUM_MODES * num_maps; - - guid = pmc_core_find_guid(pmcdev->regmap_list, pmc->map); - if (!guid) - return -ENXIO; - - ep = pmt_telem_find_and_register_endpoint(pmcdev->ssram_pcidev, guid, 0); - if (IS_ERR(ep)) { - dev_dbg(&pmcdev->pdev->dev, "couldn't get telem endpoint %ld", - PTR_ERR(ep)); - return -EPROBE_DEFER; - } - - pmc->lpm_req_regs = devm_kzalloc(&pmcdev->pdev->dev, - lpm_size * sizeof(u32), - GFP_KERNEL); - if (!pmc->lpm_req_regs) { - ret = -ENOMEM; - goto unregister_ep; - } - - /* - * PMC Low Power Mode (LPM) table - * - * In telemetry space, the LPM table contains a 4 byte header followed - * by 8 consecutive mode blocks (one for each LPM mode). Each block - * has a 4 byte header followed by a set of registers that describe the - * IP state requirements for the given mode. The IP mapping is platform - * specific but the same for each block, making for easy analysis. - * Platforms only use a subset of the space to track the requirements - * for their IPs. Callers provide the requirement registers they use as - * a list of indices. Each requirement register is associated with an - * IP map that's maintained by the caller. - * - * Header - * +----+----------------------------+----------------------------+ - * | 0 | REVISION | ENABLED MODES | - * +----+--------------+-------------+-------------+--------------+ - * - * Low Power Mode 0 Block - * +----+--------------+-------------+-------------+--------------+ - * | 1 | SUB ID | SIZE | MAJOR | MINOR | - * +----+--------------+-------------+-------------+--------------+ - * | 2 | LPM0 Requirements 0 | - * +----+---------------------------------------------------------+ - * | | ... | - * +----+---------------------------------------------------------+ - * | 29 | LPM0 Requirements 27 | - * +----+---------------------------------------------------------+ - * - * ... - * - * Low Power Mode 7 Block - * +----+--------------+-------------+-------------+--------------+ - * | | SUB ID | SIZE | MAJOR | MINOR | - * +----+--------------+-------------+-------------+--------------+ - * | 60 | LPM7 Requirements 0 | - * +----+---------------------------------------------------------+ - * | | ... | - * +----+---------------------------------------------------------+ - * | 87 | LPM7 Requirements 27 | - * +----+---------------------------------------------------------+ - * - */ - mode_offset = LPM_HEADER_OFFSET + LPM_MODE_OFFSET; - pmc_for_each_mode(i, mode, pmcdev) { - u32 *req_offset = pmc->lpm_req_regs + (mode * num_maps); - int m; - - for (m = 0; m < num_maps; m++) { - u8 sample_id = lpm_indices[m] + mode_offset; - - ret = pmt_telem_read32(ep, sample_id, req_offset, 1); - if (ret) { - dev_err(&pmcdev->pdev->dev, - "couldn't read Low Power Mode requirements: %d\n", ret); - devm_kfree(&pmcdev->pdev->dev, pmc->lpm_req_regs); - goto unregister_ep; - } - ++req_offset; - } - mode_offset += LPM_REG_COUNT + LPM_MODE_OFFSET; - } - -unregister_ep: - pmt_telem_unregister_endpoint(ep); - - return ret; -} - -int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev) -{ - int ret, i; - - if (!pmcdev->ssram_pcidev) - return -ENODEV; - - for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) { - if (!pmcdev->pmcs[i]) - continue; - - ret = pmc_core_get_lpm_req(pmcdev, pmcdev->pmcs[i]); - if (ret) - return ret; - } - - return 0; -} - static void pmc_add_pmt(struct pmc_dev *pmcdev, u64 ssram_base, void __iomem *ssram) { @@ -203,50 +69,11 @@ pmc_add_pmt(struct pmc_dev *pmcdev, u64 ssram_base, void __iomem *ssram) intel_vsec_register(pcidev, &info); } -static const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid) -{ - for (; list->map; ++list) - if (devid == list->devid) - return list->map; - - return NULL; -} - static inline u64 get_base(void __iomem *addr, u32 offset) { return lo_hi_readq(addr + offset) & GENMASK_ULL(63, 3); } -static int -pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, - const struct pmc_reg_map *reg_map, int pmc_index) -{ - struct pmc *pmc = pmcdev->pmcs[pmc_index]; - - if (!pwrm_base) - return -ENODEV; - - /* Memory for primary PMC has been allocated in core.c */ - if (!pmc) { - pmc = devm_kzalloc(&pmcdev->pdev->dev, sizeof(*pmc), GFP_KERNEL); - if (!pmc) - return -ENOMEM; - } - - pmc->map = reg_map; - pmc->base_addr = pwrm_base; - pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length); - - if (!pmc->regbase) { - devm_kfree(&pmcdev->pdev->dev, pmc); - return -ENOMEM; - } - - pmcdev->pmcs[pmc_index] = pmc; - - return 0; -} - static int pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, int pmc_idx, u32 offset) { From patchwork Wed Aug 28 22:29:17 2024 Content-Type: text/plain; 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X-CSE-ConnectionGUID: n57lmhIfRZ6HVPWTYauCew== X-CSE-MsgGUID: WXRuvJnBTLOicRXlmRrbTQ== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406461" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406461" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:37 -0700 X-CSE-ConnectionGUID: j7ehXTOfR3Cu5Su5R9n3pg== X-CSE-MsgGUID: nfOlbJXFR7mfZCWyI0QD3A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271793" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:37 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 02/11] platform/x86:intel/pmc: Rename core_ssram to ssram_telemetry Date: Wed, 28 Aug 2024 15:29:17 -0700 Message-ID: <20240828222932.1279508-3-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Rename core_ssram.c to ssram_telemetry.c. This patch is a preparation step to introduce a new SSRAM Telemetry driver for the SSRAM device. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/Makefile | 2 +- .../platform/x86/intel/pmc/{core_ssram.c => ssram_telemetry.c} | 0 2 files changed, 1 insertion(+), 1 deletion(-) rename drivers/platform/x86/intel/pmc/{core_ssram.c => ssram_telemetry.c} (100%) diff --git a/drivers/platform/x86/intel/pmc/Makefile b/drivers/platform/x86/intel/pmc/Makefile index 389e5419dadf..4dd9fa93f873 100644 --- a/drivers/platform/x86/intel/pmc/Makefile +++ b/drivers/platform/x86/intel/pmc/Makefile @@ -3,7 +3,7 @@ # Intel x86 Platform-Specific Drivers # -intel_pmc_core-y := core.o core_ssram.o spt.o cnp.o \ +intel_pmc_core-y := core.o ssram_telemetry.o spt.o cnp.o \ icl.o tgl.o adl.o mtl.o arl.o lnl.o obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core.o intel_pmc_core_pltdrv-y := pltdrv.o diff --git a/drivers/platform/x86/intel/pmc/core_ssram.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c similarity index 100% rename from drivers/platform/x86/intel/pmc/core_ssram.c rename to drivers/platform/x86/intel/pmc/ssram_telemetry.c From patchwork Wed Aug 28 22:29:18 2024 Content-Type: text/plain; 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X-CSE-ConnectionGUID: ibEBIjTlSQm8uJKWH3rbEw== X-CSE-MsgGUID: 10HAuw9GStGqqEnRAS70vQ== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406464" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406464" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:37 -0700 X-CSE-ConnectionGUID: POyY0v0ERwCmN+qTqJIUYA== X-CSE-MsgGUID: 7Ld5R8abQOiKyKvxIIb/Ig== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271795" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:37 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 03/11] platform/x86:intel/pmc: Move PMC devid to core.h Date: Wed, 28 Aug 2024 15:29:18 -0700 Message-ID: <20240828222932.1279508-4-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Move PMC devid definition for each PMC of Arrow Lake and Meteor Lake platforms to core.h. This patch is a preparation step to introduce a new SSRAM Telemetry driver which will be using the PMC devid. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/arl.c | 9 +++------ drivers/platform/x86/intel/pmc/core.h | 10 ++++++++++ drivers/platform/x86/intel/pmc/mtl.c | 9 +++------ 3 files changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c index e10527c4e3e0..870da98ceb41 100644 --- a/drivers/platform/x86/intel/pmc/arl.c +++ b/drivers/platform/x86/intel/pmc/arl.c @@ -650,23 +650,20 @@ const struct pmc_reg_map arl_pchs_reg_map = { .etr3_offset = ETR3_OFFSET, }; -#define PMC_DEVID_SOCS 0xae7f -#define PMC_DEVID_IOEP 0x7ecf -#define PMC_DEVID_PCHS 0x7f27 static struct pmc_info arl_pmc_info_list[] = { { .guid = IOEP_LPM_REQ_GUID, - .devid = PMC_DEVID_IOEP, + .devid = PMC_DEVID_MTL_IOEP, .map = &mtl_ioep_reg_map, }, { .guid = SOCS_LPM_REQ_GUID, - .devid = PMC_DEVID_SOCS, + .devid = PMC_DEVID_ARL_SOCS, .map = &arl_socs_reg_map, }, { .guid = PCHS_LPM_REQ_GUID, - .devid = PMC_DEVID_PCHS, + .devid = PMC_DEVID_ARL_PCHS, .map = &arl_pchs_reg_map, }, {} diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 9a1cc01f31d9..6763e59180a4 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -290,6 +290,16 @@ enum ppfear_regs { #define LNL_PPFEAR_NUM_ENTRIES 12 #define LNL_S0IX_BLOCKER_OFFSET 0x2004 +/* SSRAM PMC Device ID*/ +/* ARL */ +#define PMC_DEVID_ARL_SOCS 0xae7f +#define PMC_DEVID_ARL_PCHS 0x7f27 + +/* MTL */ +#define PMC_DEVID_MTL_SOCM 0x7e7f +#define PMC_DEVID_MTL_IOEP 0x7ecf +#define PMC_DEVID_MTL_IOEM 0x7ebf + extern const char *pmc_lpm_modes[]; struct pmc_bit_map { diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index c7d15d864039..908b5f8bb6e5 100644 --- a/drivers/platform/x86/intel/pmc/mtl.c +++ b/drivers/platform/x86/intel/pmc/mtl.c @@ -947,23 +947,20 @@ const struct pmc_reg_map mtl_ioem_reg_map = { .lpm_reg_index = MTL_LPM_REG_INDEX, }; -#define PMC_DEVID_SOCM 0x7e7f -#define PMC_DEVID_IOEP 0x7ecf -#define PMC_DEVID_IOEM 0x7ebf static struct pmc_info mtl_pmc_info_list[] = { { .guid = SOCP_LPM_REQ_GUID, - .devid = PMC_DEVID_SOCM, + .devid = PMC_DEVID_MTL_SOCM, .map = &mtl_socm_reg_map, }, { .guid = IOEP_LPM_REQ_GUID, - .devid = PMC_DEVID_IOEP, + .devid = PMC_DEVID_MTL_IOEP, .map = &mtl_ioep_reg_map, }, { .guid = IOEM_LPM_REQ_GUID, - .devid = PMC_DEVID_IOEM, + .devid = PMC_DEVID_MTL_IOEM, .map = &mtl_ioem_reg_map }, {} From patchwork Wed Aug 28 22:29:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782055 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 7B24B1AD9F4; 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a="23406467" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406467" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:38 -0700 X-CSE-ConnectionGUID: t/oweOxyQwWA30V03I91ng== X-CSE-MsgGUID: gbmpdlddStWdF+wmRiKf6w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271798" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:38 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 04/11] platform/x86:intel/pmc: Convert index variables to be unsigned Date: Wed, 28 Aug 2024 15:29:19 -0700 Message-ID: <20240828222932.1279508-5-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Convert the index variables type to be unsigned to avoid confusion and error. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/core.c | 5 +++-- drivers/platform/x86/intel/pmc/core.h | 2 +- drivers/platform/x86/intel/pmc/ssram_telemetry.c | 2 +- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index 630ce2087552..8984041f35f4 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1716,7 +1716,8 @@ static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev) { - int ret, i; + unsigned int i; + int ret; if (!pmcdev->ssram_pcidev) return -ENODEV; @@ -1743,7 +1744,7 @@ const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid) } int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, - const struct pmc_reg_map *reg_map, int pmc_index) + const struct pmc_reg_map *reg_map, unsigned int pmc_index) { struct pmc *pmc = pmcdev->pmcs[pmc_index]; diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 6763e59180a4..5af1d41a83f7 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -606,7 +606,7 @@ extern void pmc_core_set_device_d3(unsigned int device); extern int pmc_core_ssram_init(struct pmc_dev *pmcdev, int func); extern const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid); extern int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, - const struct pmc_reg_map *reg_map, int pmc_index); + const struct pmc_reg_map *reg_map, unsigned int pmc_index); int spt_core_init(struct pmc_dev *pmcdev); int cnp_core_init(struct pmc_dev *pmcdev); diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c index 0a2bfca5ff41..4b21d9cf310a 100644 --- a/drivers/platform/x86/intel/pmc/ssram_telemetry.c +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.c @@ -75,7 +75,7 @@ static inline u64 get_base(void __iomem *addr, u32 offset) } static int -pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, int pmc_idx, u32 offset) +pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, unsigned int pmc_idx, u32 offset) { struct pci_dev *ssram_pcidev = pmcdev->ssram_pcidev; 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28 Aug 2024 15:29:38 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 05/11] platform/x86:intel/pmc: Remove unneeded h file inclusion Date: Wed, 28 Aug 2024 15:29:20 -0700 Message-ID: <20240828222932.1279508-6-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 telemetry.h header file is not needed in arl.c or mtl.c. Remove them to avoid confusion. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/arl.c | 1 - drivers/platform/x86/intel/pmc/mtl.c | 1 - 2 files changed, 2 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c index 870da98ceb41..0460715c58f4 100644 --- a/drivers/platform/x86/intel/pmc/arl.c +++ b/drivers/platform/x86/intel/pmc/arl.c @@ -10,7 +10,6 @@ #include #include "core.h" -#include "../pmt/telemetry.h" /* PMC SSRAM PMT Telemetry GUID */ #define IOEP_LPM_REQ_GUID 0x5077612 diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index 908b5f8bb6e5..e7f5b650902d 100644 --- a/drivers/platform/x86/intel/pmc/mtl.c +++ b/drivers/platform/x86/intel/pmc/mtl.c @@ -10,7 +10,6 @@ #include #include "core.h" -#include "../pmt/telemetry.h" /* PMC SSRAM PMT Telemetry GUIDS */ #define SOCP_LPM_REQ_GUID 0x2625030 From patchwork Wed Aug 28 22:29:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782057 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 7BC741AE041; Wed, 28 Aug 2024 22:29:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884182; cv=none; b=RiZqTENtYR/riiLPDJXTyPHc/uf5AOI4cIT1ExsAFtYhx23lnnGmku5eJ71tGcZb0+S4ElJ5R+hXJvx3lV8jHdoP5A/TzUevKwKJdGi4OWitWVnjbXQ8zuYV8Voxy1YQPvN4b9H4uMk0Rc9hGKyM8dNbVaexBS0ydUSWNGtVBuA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884182; c=relaxed/simple; bh=nlGzb2XDakMPfMwLsZ1Z+hsuuqOdD062OmHH1Ve/V68=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hwYUNfIQ9lkAokBwkvGnQrP61OFZyw14Ra+6ej78fhCmSSoUSLFxSbb/FrTZ4j+KIXAxsUApHmbxxH8BHsGKIIoK0lsFHjqO4WytkKAC7dNRX0J+JE+DojWfk/4IZyLuna5bIFLuS39nDQ/a+Z4RhhR7tH9kkAZpQX9qEFOZ+Sg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Lkhqp6BS; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Lkhqp6BS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724884180; x=1756420180; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=nlGzb2XDakMPfMwLsZ1Z+hsuuqOdD062OmHH1Ve/V68=; b=Lkhqp6BS0fgkBpMBxgtJC6kTYpujxiFaWXhPOzGtYaVkEtOGccOigfXe U8znVrxLuPO0TxvgY/P9HvNJ6dSiNRw9EdXVNs/npDScB7nOWlmqci4iP nVR+n14BIasTTXNEjgnUnw/q+PkJjg8pkbeu0dGAgMasWeVCYlEDzBNYE AZt1IOAyK74HTNUDrdTtryZpAeAa/sle/PvwtWOwMpliQhQKGioW+NPEq mvRABegTDf2xkpSNm7R4jh0lZPkKB+v50zuQn/EMYK1tcxNn7N7PjgrAL Dd0tp1z4YOgjMTTW4ztAx6GRZp/FsD1BriE9ncdkArdYBYcULSrSpaYjp g==; X-CSE-ConnectionGUID: +QkpEe3sRFufJBmNHaZ6QA== X-CSE-MsgGUID: sS08ARViRbqjMtLPUIDxOQ== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406475" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406475" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:39 -0700 X-CSE-ConnectionGUID: oU6i8pJlQf+czJpF6GTxFQ== X-CSE-MsgGUID: D6onQCTJRZWiT3cnEz+ulg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271804" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:39 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 06/11] platform/x86:intel/pmc: Remove unneeded io operations Date: Wed, 28 Aug 2024 15:29:21 -0700 Message-ID: <20240828222932.1279508-7-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Remove ioremap and iounmap operations that are not needed. ioremap and iounmap operations are handled by the caller of the pmc_add_pmt function. Signed-off-by: Xi Pardee --- drivers/platform/x86/intel/pmc/ssram_telemetry.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c index 4b21d9cf310a..73c727042ca6 100644 --- a/drivers/platform/x86/intel/pmc/ssram_telemetry.c +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.c @@ -37,13 +37,7 @@ pmc_add_pmt(struct pmc_dev *pmcdev, u64 ssram_base, void __iomem *ssram) u32 dvsec_offset; u32 table, hdr; - ssram = ioremap(ssram_base, SSRAM_HDR_SIZE); - if (!ssram) - return; - dvsec_offset = readl(ssram + SSRAM_DVSEC_OFFSET); - iounmap(ssram); - dvsec = ioremap(ssram_base + dvsec_offset, SSRAM_DVSEC_SIZE); if (!dvsec) return; From patchwork Wed Aug 28 22:29:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782058 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 291561AE847; Wed, 28 Aug 2024 22:29:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884182; cv=none; b=c02wSRuEP8xR3AhkuUxy6GeyAqB7fRL7yjqjAOzo2WXilwlhGZReghRnp79xlcykhepBS/IO6+9Fgmf7IxD6VRIuY5rQ22+Qmji0jiAuI8jNviRJZWvwPquXaurpo0q0XIB3ozbCRfXDSj7r3d1aQiHyq47Veo+LeHTyJ8SGZ1c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884182; c=relaxed/simple; bh=mwQ+bjyJKxWu0yhXwQ0J+xkAjkHvBD1Evep4EVrAUlI=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BKsLBZTZbJXYKPv8v3hBw/u8raRG/Wi6qMbXBJAki7HeOmPFTN1EsFLMEsgRzidvdkU5jruJBAfTx7tk15pxePJPVrkGLrQSI2cbxqBXq8Psu6GCkH3u0vxgfcZRDegUCf7Q2cUs5RpyLoQ05xhFswV/YY9aWHWGhurecRXYqVg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=FhSxQBhd; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="FhSxQBhd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724884181; x=1756420181; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=mwQ+bjyJKxWu0yhXwQ0J+xkAjkHvBD1Evep4EVrAUlI=; b=FhSxQBhdHPToHMhsRRP3w10m9g6cHTZUW14wTtcWC8mDQgCe0hzpLxH1 26SHU+Ltmqjv51krqvnlTGCQBe5PNbWLVPcS/e6YS+BYruzwO8MLAQjI9 8b3uzM/YrKxvxga5Z0TSMyEdab344OackCvIHmTNeaBeIc4Vy4Rw22Cg0 i/t6ci3Pkp+eTjmGg49XnfUckozz+PlQ06Al7wRNo/g2+cT4McSWZxWj+ z9hJoLfdq+COfLh6NxablE8QORuZegSzbJ8X7ByIv3kezuKtBjkHdgaES TPr30aBxHxhB2Op0eQvzpLeVfPorJPOtK47yNRmWzDjnXowisUUkzj/0f A==; X-CSE-ConnectionGUID: b19JEi1fTm+yQ2YTzNu9Uw== X-CSE-MsgGUID: w2yJUOEmT8ycCwti9WJLaw== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406481" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406481" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:40 -0700 X-CSE-ConnectionGUID: YB4adtKmSTe0G8UNvqh4Mw== X-CSE-MsgGUID: /R/ckrm4Sz+toBDYvwx1qg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271811" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:40 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 07/11] platform/x86:intel/pmc: Check return value of ioremap Date: Wed, 28 Aug 2024 15:29:22 -0700 Message-ID: <20240828222932.1279508-8-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Check the return value of ioremap operation and return ENOMEM when the operation fails for better error handling. Signed-off-by: Xi Pardee --- drivers/platform/x86/intel/pmc/ssram_telemetry.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c index 73c727042ca6..f625d39d1aa3 100644 --- a/drivers/platform/x86/intel/pmc/ssram_telemetry.c +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.c @@ -84,6 +84,9 @@ pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, unsigned int pmc_idx, u32 offset) ssram_base = ssram_pcidev->resource[0].start; tmp_ssram = ioremap(ssram_base, SSRAM_HDR_SIZE); + if (!tmp_ssram) + return -ENOMEM; + if (pmc_idx != PMC_IDX_MAIN) { /* * The secondary PMC BARS (which are behind hidden PCI devices) From patchwork Wed Aug 28 22:29:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782059 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 1454E1AE87F; Wed, 28 Aug 2024 22:29:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884184; cv=none; b=O8Jg7Hpu3EV6xD5z9wj2Uz8++i7KyQuuPXB9XYrmZEAr0+UdlKLaJTsMBUPF0Itw1TlZ2QGqKc5D0N6vSLRFcY8MGsHdB8Qbzq8PVYLgXZUEMHneKjk/f+XUtTt/3Q3ol03WXKGtTZ7ZKtsUxU8B/yhSEJblHEbNkGJutRLhsgk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884184; c=relaxed/simple; bh=FTa2sizK/5n9mqe6OdC5p0ljUel07qB1co/lPd83EOk=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lzIlC6FnKWG3o75l2s9j2dOUPI3eJQUMgiG7Xlz1MCKlU+/dmqGj71kii77iftKzoXZbQo3hHxXPOM2SYkG2whry7kNesom7iwxXiXFAYDfx2twTWiaPTul7Xk72P6Lb1e77gGu4K6TarVKSVMA2JffRknNjLNyNIxsNsr6AqZY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=bnnqLC8w; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="bnnqLC8w" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724884182; x=1756420182; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=FTa2sizK/5n9mqe6OdC5p0ljUel07qB1co/lPd83EOk=; b=bnnqLC8wPaurf2nXgEcGujqE8fyiJCD8vm8quEGSesLgllivD4LjaU6A 6uFZ+wBSkbuNCh+eIWeQh04jr6IQbXECH2hTGEvs6PMuAnKw8kI82QIOQ qXXTQn8R+uWea/6UZZuVWV96h8Ub6z3JbfiamCMdRs6z8fZz0WMQ8yBSX NOEicYzb32i/IFGWxQYevx517t3siOB6kZe5rD03q0TmX7M5Dx91HIjQu gDejDp75apGxCPlkHZzzP9dAGk6WnQXCailF3D4yMlA8D2Skv6496nwNg wRwqxP9nx6eBP5XZfKkY8fNHHb9eKm9ZlhKBWl/35IUPzams3mTtU4njX Q==; X-CSE-ConnectionGUID: bObWA8xtQiaGH6oJqQtCRw== X-CSE-MsgGUID: hwuxOgvQQxWQNtqsCSEbjg== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406486" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406486" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:40 -0700 X-CSE-ConnectionGUID: R+5hM+h5Rb6ygVk8I+Um1Q== X-CSE-MsgGUID: W0Ev5GdhS6mjiP3TPEIhRg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271818" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:41 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 08/11] platform/x86:intel/pmc: Create Intel PMC SSRAM Telemetry driver Date: Wed, 28 Aug 2024 15:29:23 -0700 Message-ID: <20240828222932.1279508-9-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Convert ssram device related functionalities to a new driver named Intel PMC SSRAM Telemetry driver. Modify PMC Core driver to use API exported by the driver to discover and achieve devid and PWRMBASE address information for each available PMC. PMC Core driver needs to get PCI device when reading from telemetry regions. The new SSRAM driver binds to the SSRAM device and provides the following functionalities: 1. Look for and register telemetry regions available in SSRAM device. 2. Provide devid and PWRMBASE address information for the corresponding PMCs. Signed-off-by: Xi Pardee --- drivers/platform/x86/intel/pmc/Kconfig | 11 ++ drivers/platform/x86/intel/pmc/Makefile | 8 +- drivers/platform/x86/intel/pmc/arl.c | 14 ++- drivers/platform/x86/intel/pmc/core.c | 59 ++++++--- drivers/platform/x86/intel/pmc/core.h | 6 +- drivers/platform/x86/intel/pmc/mtl.c | 14 ++- .../platform/x86/intel/pmc/ssram_telemetry.c | 118 +++++++++++------- .../platform/x86/intel/pmc/ssram_telemetry.h | 45 +++++++ 8 files changed, 200 insertions(+), 75 deletions(-) create mode 100644 drivers/platform/x86/intel/pmc/ssram_telemetry.h diff --git a/drivers/platform/x86/intel/pmc/Kconfig b/drivers/platform/x86/intel/pmc/Kconfig index d2f651fbec2c..c2ccd48fe266 100644 --- a/drivers/platform/x86/intel/pmc/Kconfig +++ b/drivers/platform/x86/intel/pmc/Kconfig @@ -8,6 +8,7 @@ config INTEL_PMC_CORE depends on PCI depends on ACPI depends on INTEL_PMT_TELEMETRY + depends on INTEL_PMC_SSRAM_TELEMETRY || !INTEL_PMC_SSRAM_TELEMETRY help The Intel Platform Controller Hub for Intel Core SoCs provides access to Power Management Controller registers via various interfaces. This @@ -24,3 +25,13 @@ config INTEL_PMC_CORE - SLPS0 Debug registers (Cannonlake/Icelake PCH) - Low Power Mode registers (Tigerlake and beyond) - PMC quirks as needed to enable SLPS0/S0ix + +config INTEL_PMC_SSRAM_TELEMETRY + tristate "Intel PMC SSRAM Telemetry driver" + depends on INTEL_VSEC + help + The PMC SSRAM device contains counters structured in Intel Platform + Monitoring Techology (PMT) telemetry regions. This driver looks for + and register these telemetry regions so they would be available for + read through sysfs and Intel PMT API. The driver also provides API to + expose information of PMCs available in the platform. \ No newline at end of file diff --git a/drivers/platform/x86/intel/pmc/Makefile b/drivers/platform/x86/intel/pmc/Makefile index 4dd9fa93f873..e935602af2a3 100644 --- a/drivers/platform/x86/intel/pmc/Makefile +++ b/drivers/platform/x86/intel/pmc/Makefile @@ -3,8 +3,12 @@ # Intel x86 Platform-Specific Drivers # -intel_pmc_core-y := core.o ssram_telemetry.o spt.o cnp.o \ - icl.o tgl.o adl.o mtl.o arl.o lnl.o +intel_pmc_core-y := core.o spt.o cnp.o icl.o \ + tgl.o adl.o mtl.o arl.o lnl.o obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core.o intel_pmc_core_pltdrv-y := pltdrv.o obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core_pltdrv.o + +# Intel PMC SSRAM driver +intel_pmc_ssram_telemetry-y += ssram_telemetry.o +obj-$(CONFIG_INTEL_PMC_SSRAM_TELEMETRY) += intel_pmc_ssram_telemetry.o \ No newline at end of file diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c index 0460715c58f4..25268b1fdf97 100644 --- a/drivers/platform/x86/intel/pmc/arl.c +++ b/drivers/platform/x86/intel/pmc/arl.c @@ -700,11 +700,13 @@ int arl_core_init(struct pmc_dev *pmcdev) pmcdev->resume = arl_resume; pmcdev->regmap_list = arl_pmc_info_list; - /* - * If ssram init fails use legacy method to at least get the - * primary PMC - */ - ret = pmc_core_ssram_init(pmcdev, func); + ret = pmc_core_ssram_get_reg_base(pmcdev); + + /* Try again later after Intel PMC SSRAM Telemetry driver finishes probe */ + if (ret == -EAGAIN) + return -EPROBE_DEFER; + + /* If regbase not assigned, set map and discover using legacy method */ if (ret) { ssram_init = false; pmc->map = &arl_socs_reg_map; @@ -718,7 +720,7 @@ int arl_core_init(struct pmc_dev *pmcdev) pmc_core_punit_pmt_init(pmcdev, ARL_PMT_DMU_GUID); if (ssram_init) { - ret = pmc_core_ssram_get_lpm_reqs(pmcdev); + ret = pmc_core_ssram_get_lpm_reqs(pmcdev, func); if (ret) return ret; } diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index 8984041f35f4..19256c5570ab 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -28,6 +28,7 @@ #include #include "core.h" +#include "ssram_telemetry.h" #include "../pmt/telemetry.h" /* Maximum number of modes supported by platfoms that has low power mode capability */ @@ -1613,11 +1614,12 @@ static u32 pmc_core_find_guid(struct pmc_info *list, const struct pmc_reg_map *m return 0; } -static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) +static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc, int func) { struct telem_endpoint *ep; const u8 *lpm_indices; int num_maps, mode_offset = 0; + struct pci_dev *pcidev; int ret, mode, i; int lpm_size; u32 guid; @@ -1630,11 +1632,16 @@ static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) if (!guid) return -ENXIO; - ep = pmt_telem_find_and_register_endpoint(pmcdev->ssram_pcidev, guid, 0); + pcidev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(20, func)); + if (!pcidev) + return -ENODEV; + + ep = pmt_telem_find_and_register_endpoint(pcidev, guid, 0); if (IS_ERR(ep)) { dev_dbg(&pmcdev->pdev->dev, "couldn't get telem endpoint %ld", PTR_ERR(ep)); - return -EPROBE_DEFER; + ret = -EPROBE_DEFER; + goto release_dev; } pmc->lpm_req_regs = devm_kzalloc(&pmcdev->pdev->dev, @@ -1710,23 +1717,22 @@ static int pmc_core_get_lpm_req(struct pmc_dev *pmcdev, struct pmc *pmc) unregister_ep: pmt_telem_unregister_endpoint(ep); +release_dev: + pci_dev_put(pcidev); return ret; } -int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev) +int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev, int func) { unsigned int i; int ret; - if (!pmcdev->ssram_pcidev) - return -ENODEV; - for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) { if (!pmcdev->pmcs[i]) continue; - ret = pmc_core_get_lpm_req(pmcdev, pmcdev->pmcs[i]); + ret = pmc_core_get_lpm_req(pmcdev, pmcdev->pmcs[i], func); if (ret) return ret; } @@ -1743,14 +1749,22 @@ const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid) return NULL; } -int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, - const struct pmc_reg_map *reg_map, unsigned int pmc_index) +static int pmc_core_pmc_add(struct pmc_dev *pmcdev, unsigned int pmc_index) { - struct pmc *pmc = pmcdev->pmcs[pmc_index]; + struct pmc_ssram_telemetry pmc_ssram_telemetry; + const struct pmc_reg_map *map; + struct pmc *pmc; + int ret; + + ret = pmc_ssram_telemetry_get_pmc_info(pmc_index, &pmc_ssram_telemetry); + if (ret) + return ret; - if (!pwrm_base) + map = pmc_core_find_regmap(pmcdev->regmap_list, pmc_ssram_telemetry.devid); + if (!map) return -ENODEV; + pmc = pmcdev->pmcs[pmc_index]; /* Memory for primary PMC has been allocated in core.c */ if (!pmc) { pmc = devm_kzalloc(&pmcdev->pdev->dev, sizeof(*pmc), GFP_KERNEL); @@ -1758,8 +1772,8 @@ int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, return -ENOMEM; } - pmc->map = reg_map; - pmc->base_addr = pwrm_base; + pmc->map = map; + pmc->base_addr = pmc_ssram_telemetry.base_addr; pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length); if (!pmc->regbase) { @@ -1772,6 +1786,23 @@ int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, return 0; } +int pmc_core_ssram_get_reg_base(struct pmc_dev *pmcdev) +{ + int ret; + + if (!pmcdev->regmap_list) + return -ENOENT; + + ret = pmc_core_pmc_add(pmcdev, PMC_IDX_MAIN); + if (ret) + return ret; + + pmc_core_pmc_add(pmcdev, PMC_IDX_IOE); + pmc_core_pmc_add(pmcdev, PMC_IDX_PCH); + + return 0; +} + static const struct acpi_device_id pmc_core_acpi_ids[] = { {"INT33A1", 0}, /* _HID for Intel Power Engine, _CID PNP0D80*/ { } diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 5af1d41a83f7..2d62a71ec100 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -594,7 +594,7 @@ extern const struct pmc_bit_map *arl_pchs_lpm_maps[]; extern const struct pmc_reg_map arl_pchs_reg_map; extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev); -extern int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev); +extern int pmc_core_ssram_get_lpm_reqs(struct pmc_dev *pmcdev, int func); int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value, int ignore); int pmc_core_resume_common(struct pmc_dev *pmcdev); @@ -603,10 +603,8 @@ extern void pmc_core_get_low_power_modes(struct pmc_dev *pmcdev); extern void pmc_core_punit_pmt_init(struct pmc_dev *pmcdev, u32 guid); extern void pmc_core_set_device_d3(unsigned int device); -extern int pmc_core_ssram_init(struct pmc_dev *pmcdev, int func); extern const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid); -extern int pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base, - const struct pmc_reg_map *reg_map, unsigned int pmc_index); +extern int pmc_core_ssram_get_reg_base(struct pmc_dev *pmcdev); int spt_core_init(struct pmc_dev *pmcdev); int cnp_core_init(struct pmc_dev *pmcdev); diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index e7f5b650902d..6ac52625a029 100644 --- a/drivers/platform/x86/intel/pmc/mtl.c +++ b/drivers/platform/x86/intel/pmc/mtl.c @@ -1000,11 +1000,13 @@ int mtl_core_init(struct pmc_dev *pmcdev) pmcdev->resume = mtl_resume; pmcdev->regmap_list = mtl_pmc_info_list; - /* - * If ssram init fails use legacy method to at least get the - * primary PMC - */ - ret = pmc_core_ssram_init(pmcdev, func); + ret = pmc_core_ssram_get_reg_base(pmcdev); + + /* Try again later after Intel PMC SSRAM Telemetry driver finishes probe */ + if (ret == -EAGAIN) + return -EPROBE_DEFER; + + /* If regbase not assigned, set map and discover using legacy method */ if (ret) { ssram_init = false; dev_warn(&pmcdev->pdev->dev, @@ -1019,7 +1021,7 @@ int mtl_core_init(struct pmc_dev *pmcdev) pmc_core_punit_pmt_init(pmcdev, MTL_PMT_DMU_GUID); if (ssram_init) - return pmc_core_ssram_get_lpm_reqs(pmcdev); + return pmc_core_ssram_get_lpm_reqs(pmcdev, func); return 0; } diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c index f625d39d1aa3..1c6cc95bfefa 100644 --- a/drivers/platform/x86/intel/pmc/ssram_telemetry.c +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.c @@ -1,20 +1,19 @@ // SPDX-License-Identifier: GPL-2.0 /* - * This file contains functions to handle discovery of PMC metrics located - * in the PMC SSRAM PCI device. + * Intel PMC SSRAM TELEMETRY PCI Driver * * Copyright (c) 2023, Intel Corporation. * All Rights Reserved. * */ -#include #include +#include #include #include "core.h" +#include "ssram_telemetry.h" #include "../vsec.h" -#include "../pmt/telemetry.h" #define SSRAM_HDR_SIZE 0x100 #define SSRAM_PWRM_OFFSET 0x14 @@ -24,12 +23,14 @@ #define SSRAM_IOE_OFFSET 0x68 #define SSRAM_DEVID_OFFSET 0x70 -DEFINE_FREE(pmc_core_iounmap, void __iomem *, iounmap(_T)); +static struct pmc_ssram_telemetry *pmc_ssram_telems; +static bool device_probed; + +DEFINE_FREE(pmc_ssram_telemetry_iounmap, void __iomem *, iounmap(_T)); static void -pmc_add_pmt(struct pmc_dev *pmcdev, u64 ssram_base, void __iomem *ssram) +pmc_ssram_telemetry_add_pmt(struct pci_dev *pcidev, u64 ssram_base, void __iomem *ssram) { - struct pci_dev *pcidev = pmcdev->ssram_pcidev; struct intel_vsec_platform_info info = {}; struct intel_vsec_header *headers[2] = {}; struct intel_vsec_header header; @@ -58,7 +59,7 @@ pmc_add_pmt(struct pmc_dev *pmcdev, u64 ssram_base, void __iomem *ssram) info.caps = VSEC_CAP_TELEMETRY; info.headers = headers; info.base_addr = ssram_base; - info.parent = &pmcdev->pdev->dev; + info.parent = &pcidev->dev; intel_vsec_register(pcidev, &info); } @@ -69,19 +70,14 @@ static inline u64 get_base(void __iomem *addr, u32 offset) } static int -pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, unsigned int pmc_idx, u32 offset) +pmc_ssram_telemetry_get_pmc(struct pci_dev *pcidev, unsigned int pmc_idx, u32 offset) { - struct pci_dev *ssram_pcidev = pmcdev->ssram_pcidev; - void __iomem __free(pmc_core_iounmap) *tmp_ssram = NULL; - void __iomem __free(pmc_core_iounmap) *ssram = NULL; - const struct pmc_reg_map *map; + void __iomem __free(pmc_ssram_telemetry_iounmap) * tmp_ssram = NULL; + void __iomem __free(pmc_ssram_telemetry_iounmap) * ssram = NULL; u64 ssram_base, pwrm_base; u16 devid; - if (!pmcdev->regmap_list) - return -ENOENT; - - ssram_base = ssram_pcidev->resource[0].start; + ssram_base = pcidev->resource[0].start; tmp_ssram = ioremap(ssram_base, SSRAM_HDR_SIZE); if (!tmp_ssram) @@ -105,46 +101,82 @@ pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, unsigned int pmc_idx, u32 offset) devid = readw(ssram + SSRAM_DEVID_OFFSET); /* Find and register and PMC telemetry entries */ - pmc_add_pmt(pmcdev, ssram_base, ssram); + pmc_ssram_telemetry_add_pmt(pcidev, ssram_base, ssram); + + pmc_ssram_telems[pmc_idx].devid = devid; + pmc_ssram_telems[pmc_idx].base_addr = pwrm_base; + + return 0; +} - map = pmc_core_find_regmap(pmcdev->regmap_list, devid); - if (!map) +int pmc_ssram_telemetry_get_pmc_info(unsigned int pmc_idx, + struct pmc_ssram_telemetry *pmc_ssram_telemetry) +{ + /* + * PMCs are discovered in probe function. If this function is called before + * probe function complete, the result would be invalid. Use device_probed + * variable to avoid this case. Return -EAGAIN to inform the user to call + * again later. + */ + if (!device_probed) + return -EAGAIN; + + if (pmc_idx >= MAX_NUM_PMC) + return -EINVAL; + + if (!pmc_ssram_telems || !pmc_ssram_telems[pmc_idx].devid) return -ENODEV; - return pmc_core_pmc_add(pmcdev, pwrm_base, map, pmc_idx); + pmc_ssram_telemetry->devid = pmc_ssram_telems[pmc_idx].devid; + pmc_ssram_telemetry->base_addr = pmc_ssram_telems[pmc_idx].base_addr; + return 0; } +EXPORT_SYMBOL_GPL(pmc_ssram_telemetry_get_pmc_info); -int pmc_core_ssram_init(struct pmc_dev *pmcdev, int func) +static int intel_pmc_ssram_telemetry_probe(struct pci_dev *pcidev, const struct pci_device_id *id) { - struct pci_dev *pcidev; int ret; - pcidev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(20, func)); - if (!pcidev) - return -ENODEV; + pmc_ssram_telems = devm_kzalloc(&pcidev->dev, sizeof(*pmc_ssram_telems) * MAX_NUM_PMC, + GFP_KERNEL); + if (!pmc_ssram_telems) { + ret = -ENOMEM; + goto probe_finish; + } ret = pcim_enable_device(pcidev); - if (ret) - goto release_dev; - - pmcdev->ssram_pcidev = pcidev; + if (ret) { + dev_dbg(&pcidev->dev, "failed to enable PMC SSRAM device\n"); + goto probe_finish; + } - ret = pmc_core_ssram_get_pmc(pmcdev, PMC_IDX_MAIN, 0); + ret = pmc_ssram_telemetry_get_pmc(pcidev, PMC_IDX_MAIN, 0); if (ret) - goto disable_dev; + goto probe_finish; - pmc_core_ssram_get_pmc(pmcdev, PMC_IDX_IOE, SSRAM_IOE_OFFSET); - pmc_core_ssram_get_pmc(pmcdev, PMC_IDX_PCH, SSRAM_PCH_OFFSET); - - return 0; - -disable_dev: - pmcdev->ssram_pcidev = NULL; - pci_disable_device(pcidev); -release_dev: - pci_dev_put(pcidev); + pmc_ssram_telemetry_get_pmc(pcidev, PMC_IDX_IOE, SSRAM_IOE_OFFSET); + pmc_ssram_telemetry_get_pmc(pcidev, PMC_IDX_PCH, SSRAM_PCH_OFFSET); +probe_finish: + device_probed = true; return ret; } + +static const struct pci_device_id intel_pmc_ssram_telemetry_pci_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PMC_DEVID_MTL_SOCM) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PMC_DEVID_ARL_SOCS) }, + { } +}; +MODULE_DEVICE_TABLE(pci, intel_pmc_ssram_telemetry_pci_ids); + +static struct pci_driver intel_pmc_ssram_telemetry_driver = { + .name = "intel_pmc_ssram_telemetry", + .id_table = intel_pmc_ssram_telemetry_pci_ids, + .probe = intel_pmc_ssram_telemetry_probe, +}; +module_pci_driver(intel_pmc_ssram_telemetry_driver); + MODULE_IMPORT_NS(INTEL_VSEC); -MODULE_IMPORT_NS(INTEL_PMT_TELEMETRY); +MODULE_AUTHOR("Xi Pardee "); +MODULE_DESCRIPTION("Intel PMC SSRAM TELEMETRY driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.h b/drivers/platform/x86/intel/pmc/ssram_telemetry.h new file mode 100644 index 000000000000..938d0baf50be --- /dev/null +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Intel PMC SSRAM TELEMETRY PCI Driver Header File + * + * Copyright (c) 2024, Intel Corporation. + * All Rights Reserved. + * + */ + +#ifndef PMC_SSRAM_H +#define PMC_SSRAM_H + +/** + * struct pmc_ssram_telemetry - Structure to keep pmc info in ssram device + * @devid: device id of the pmc device + * @base_addr: contains PWRM base address + */ +struct pmc_ssram_telemetry { + u16 devid; + u64 base_addr; +}; + +#if IS_REACHABLE(CONFIG_INTEL_PMC_SSRAM_TELEMETRY) +/** + * pmc_ssram_telemetry_get_pmc_info() - Get a PMC devid and base_addr information + * @pmc_idx: Index of the PMC + * @pmc_ssram_telemetry: pmc_ssram_telemetry structure to store the PMC information + * + * Return: + * * 0 - Success + * * -EAGAIN - Probe function has not finished yet. Try again. + * * -EINVAL - Invalid pmc_idx + * * -ENODEV - PMC device is not available + */ +int pmc_ssram_telemetry_get_pmc_info(unsigned int pmc_idx, + struct pmc_ssram_telemetry *pmc_ssram_telemetry); +#else /* !CONFIG_INTEL_PMC_SSRAM_TELEMETRY */ +static inline int pmc_ssram_telemetry_get_pmc_info(int pmc_idx, + struct pmc_ssram_telemetry *pmc_ssram_telemetry) +{ + return -ENODEV; +} +#endif /* CONFIG_INTEL_PMC_SSRAM_TELEMETRY */ + +#endif /* PMC_SSRAM_H */ From patchwork Wed Aug 28 22:29:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Xi Pardee X-Patchwork-Id: 13782060 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 E723E1AED57; Wed, 28 Aug 2024 22:29:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884184; cv=none; b=GMBWo4HEE/IT/3rupVHiPqhioXTASkqYdwQ9acP/WifMgb3Z4MqVYBpU6FpeiAH289FqAb1fVvSuiVzIJwyyTgL817u8Cc9Vr7PbjWyVSKKDhVte+ylo3GzVFzk+grNq+6zN9pBQE8S15ATHPQ3JTZJg0L0+q3JJW7cZQ3n8zLY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724884184; c=relaxed/simple; bh=j5CDe8gdgBVD/syQL/At/OQPa2s++JMK0Dbr2lVkXso=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FIQ87uBqCycJBG0HUxnDNH/RWoYx6i1sEc9xh1F88OYhSyOST1ofBP06TNVE+rkEiZjwOCIna+aC3o5BP/n5NGURcEiAz9n/UimkbL1J7+XBTYdj4ZP4FC1ZbB4o0cG7PosapXPf08dJGqGfc1U0TWgAEFJO5fVSYDCc7pOEHaA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=R4LggIh1; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="R4LggIh1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724884183; x=1756420183; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=j5CDe8gdgBVD/syQL/At/OQPa2s++JMK0Dbr2lVkXso=; b=R4LggIh1uGNIwge4jlWoSMIOR2mvunvSp2i1gRK+dJ8974nEqsp7O0xI UMglrtNxywn+p3sFAfEquFxmZeR4ePHkz6izKSGjVOtvO2M5oGihuA2YN 7dTvzcqWfh6kO0h5pet3ArYtqktTDaOQfx8MkjXTwAjqHvRxeDR4aFcQu vweqN5Xk9d8JbUmSpWB5tGqhHFro2TF4dAGy3x6GixTJSs8GFBiScD4QW X5/76kt7C65XICvaOvO8KChd+0FS4rFRbw942EtUftasIbL/+Yf9o+5zL XJaYVh1rdV9K5sVTbgIv9jF3HopWjAS8zqfkIkoxg0vAD/7polhwiOuw+ w==; X-CSE-ConnectionGUID: RNkoT0ZkSV+g8zjWtB/nIQ== X-CSE-MsgGUID: NWaAjW4PSomCY/+9NXWx3g== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="23406491" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="23406491" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:41 -0700 X-CSE-ConnectionGUID: rdTcnZP0S4KFXaXfyUWH+Q== X-CSE-MsgGUID: RlA9bDWdTIurhvSSl84+Ig== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68271825" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:41 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 09/11] platform/x86:intel/pmc: Add Lunar Lake SSRAM devid Date: Wed, 28 Aug 2024 15:29:24 -0700 Message-ID: <20240828222932.1279508-10-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable SSRAM device Lunar Lake support by adding Lunar Lake SSRAM devid to Intel SSRAM Telemetry driver. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/core.h | 3 +++ drivers/platform/x86/intel/pmc/ssram_telemetry.c | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 2d62a71ec100..25974f9d329e 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -300,6 +300,9 @@ enum ppfear_regs { #define PMC_DEVID_MTL_IOEP 0x7ecf #define PMC_DEVID_MTL_IOEM 0x7ebf +/* LNL */ +#define PMC_DEVID_LNL_SOCM 0xa87f + extern const char *pmc_lpm_modes[]; struct pmc_bit_map { diff --git a/drivers/platform/x86/intel/pmc/ssram_telemetry.c b/drivers/platform/x86/intel/pmc/ssram_telemetry.c index 1c6cc95bfefa..025013b051c7 100644 --- a/drivers/platform/x86/intel/pmc/ssram_telemetry.c +++ b/drivers/platform/x86/intel/pmc/ssram_telemetry.c @@ -165,6 +165,7 @@ static int intel_pmc_ssram_telemetry_probe(struct pci_dev *pcidev, const struct static const struct pci_device_id intel_pmc_ssram_telemetry_pci_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PMC_DEVID_MTL_SOCM) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PMC_DEVID_ARL_SOCS) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PMC_DEVID_LNL_SOCM) }, { } }; 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28 Aug 2024 15:29:42 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 10/11] platform/x86:intel/pmt: Get PMC from SSRAM for Lunar Lake Date: Wed, 28 Aug 2024 15:29:25 -0700 Message-ID: <20240828222932.1279508-11-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support to discover and achieve PMC information from Intel SSRAM Telemetry driver for Lunar Lake platforms. Signed-off-by: Xi Pardee --- drivers/platform/x86/intel/pmc/lnl.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/lnl.c b/drivers/platform/x86/intel/pmc/lnl.c index e7a8077d1a3e..109b08d43fc8 100644 --- a/drivers/platform/x86/intel/pmc/lnl.c +++ b/drivers/platform/x86/intel/pmc/lnl.c @@ -13,6 +13,14 @@ #include "core.h" +static struct pmc_info lnl_pmc_info_list[] = { + { + .devid = PMC_DEVID_LNL_SOCM, + .map = &lnl_socm_reg_map, + }, + {} +}; + const struct pmc_bit_map lnl_ltr_show_map[] = { {"SOUTHPORT_A", CNP_PMC_LTR_SPA}, {"SOUTHPORT_B", CNP_PMC_LTR_SPB}, @@ -561,10 +569,20 @@ int lnl_core_init(struct pmc_dev *pmcdev) pmcdev->suspend = cnl_suspend; pmcdev->resume = lnl_resume; - pmc->map = &lnl_socm_reg_map; - ret = get_primary_reg_base(pmc); - if (ret) - return ret; + pmcdev->regmap_list = lnl_pmc_info_list; + ret = pmc_core_ssram_get_reg_base(pmcdev); + + /* Try again later after Intel PMC SSRAM Telemetry driver finishes probe */ + if (ret == -EAGAIN) + return -EPROBE_DEFER; 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d="scan'208";a="68271833" Received: from ehanks-mobl1.amr.corp.intel.com (HELO xpardee-desk.hsd1.or.comcast.net) ([10.124.220.10]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 15:29:42 -0700 From: Xi Pardee To: xi.pardee@linux.intel.com, irenic.rajneesh@gmail.com, david.e.box@linux.intel.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 11/11] platform/x86:intel/pmc: Get LPM information for Lunar Lake Date: Wed, 28 Aug 2024 15:29:26 -0700 Message-ID: <20240828222932.1279508-12-xi.pardee@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828222932.1279508-1-xi.pardee@linux.intel.com> References: <20240828222932.1279508-1-xi.pardee@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support to find and read the requirements from the telemetry entries for Lunar Lake platforms. Signed-off-by: Xi Pardee --- drivers/platform/x86/intel/pmc/lnl.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/platform/x86/intel/pmc/lnl.c b/drivers/platform/x86/intel/pmc/lnl.c index 109b08d43fc8..f5fee9e105e2 100644 --- a/drivers/platform/x86/intel/pmc/lnl.c +++ b/drivers/platform/x86/intel/pmc/lnl.c @@ -13,8 +13,13 @@ #include "core.h" +#define SOCM_LPM_REQ_GUID 0x15099748 + +static const u8 LNL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20}; + static struct pmc_info lnl_pmc_info_list[] = { { + .guid = SOCM_LPM_REQ_GUID, .devid = PMC_DEVID_LNL_SOCM, .map = &lnl_socm_reg_map, }, @@ -536,6 +541,7 @@ const struct pmc_reg_map lnl_socm_reg_map = { .lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET, .s0ix_blocker_maps = lnl_blk_maps, .s0ix_blocker_offset = LNL_S0IX_BLOCKER_OFFSET, + .lpm_reg_index = LNL_LPM_REG_INDEX, }; #define LNL_NPU_PCI_DEV 0x643e @@ -561,6 +567,8 @@ static int lnl_resume(struct pmc_dev *pmcdev) int lnl_core_init(struct pmc_dev *pmcdev) { + bool ssram_init = true; + int func = 2; int ret; struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC]; @@ -578,6 +586,7 @@ int lnl_core_init(struct pmc_dev *pmcdev) /* If regbase not assigned, set map and discover using legacy method */ if (ret) { + ssram_init = false; pmc->map = &lnl_socm_reg_map; ret = get_primary_reg_base(pmc); if (ret) @@ -586,5 +595,11 @@ int lnl_core_init(struct pmc_dev *pmcdev) pmc_core_get_low_power_modes(pmcdev); + if (ssram_init) { + ret = pmc_core_ssram_get_lpm_reqs(pmcdev, func); + if (ret) + return ret; + } + return 0; }