From patchwork Fri Aug 12 17:37:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nilawar, Badal" X-Patchwork-Id: 12942426 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 02667C00140 for ; Fri, 12 Aug 2022 17:36:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D135F2BADB; Fri, 12 Aug 2022 17:36:19 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8D2F38F817 for ; Fri, 12 Aug 2022 17:35:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660325749; x=1691861749; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=BvwkWW3APDZ5fWTsKBfO8G2B+e1K5eBFEpeau55O7qY=; b=O6WkhV8VicplZAlohvORs7vsG6m08oAmqSopwWqA0/7ZdLfzX5yLFGft qr8N1K6L9hYTsRUNqPELzFwy5vkddRjEteHGMTs9khkfbLGxs22LpfpQa ucohm7HCJMRHHIHTce8Cw6/rRpjqZYoPHJFSXUpoIg/fvllxZW/EyerUW i7ajKVC72ZA7j8XgHr3p7/Liuw6XdKJtNxPM8Yv/9HAelX5Do+gAgKKrV DzgswkTFNkdA2cHXvHsImDcTKxtgwPbFMuPorKfuCsv5fa6nkT2/UKEyv tGbMAkobLM2QfMtr1Qds0HAhEVmf8YJWLr5hz27rEy8dZsLymFyYFzv8V Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10437"; a="292440139" X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="292440139" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 10:35:49 -0700 X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="665904304" Received: from bnilawar-desk1.iind.intel.com ([10.145.169.158]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 10:35:46 -0700 From: Badal Nilawar To: intel-gfx@lists.freedesktop.org Date: Fri, 12 Aug 2022 23:07:15 +0530 Message-Id: <20220812173715.2398586-8-badal.nilawar@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220812173715.2398586-1-badal.nilawar@intel.com> References: <20220812173715.2398586-1-badal.nilawar@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 7/7] drm/i915/hwmon: Extend power/energy for XEHPSDV X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-hwmon@vger.kernel.org, linux@roeck-us.net Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Dale B Stimson Extend hwmon power/energy for XEHPSDV especially per gt level energy usage. v2: Update to latest HWMON spec (Ashutosh) Signed-off-by: Ashutosh Dixit Signed-off-by: Dale B Stimson Signed-off-by: Badal Nilawar Acked-by: Guenter Roeck --- .../ABI/testing/sysfs-driver-intel-i915-hwmon | 7 +- drivers/gpu/drm/i915/gt/intel_gt_regs.h | 5 + drivers/gpu/drm/i915/i915_hwmon.c | 120 +++++++++++++++++- 3 files changed, 128 insertions(+), 4 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon index 34668f6c2dc4..e69bc43d4c9e 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon +++ b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon @@ -65,6 +65,11 @@ What: /sys/devices/.../hwmon/hwmon/energy1_input Date: June 2022 KernelVersion: 5.19 Contact: dri-devel@lists.freedesktop.org -Description: RO. Energy input of device in microjoules. +Description: RO. Energy input of device or gt in microjoules. + + For i915 device level hwmon devices (name "i915") this + reflects energy input for the entire device. For gt level + hwmon devices (name "i915_gtN") this reflects energy input + for the gt. Only supported for particular Intel i915 graphics platforms. diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 4604f6dbf8b6..dc3bc07cdd24 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1569,4 +1569,9 @@ #define GEN12_SFC_DONE(n) _MMIO(0x1cc000 + (n) * 0x1000) +#define GT0_PACKAGE_ENERGY_STATUS _MMIO(0x250004) +#define GT0_PACKAGE_RAPL_LIMIT _MMIO(0x250008) +#define GT0_PACKAGE_POWER_SKU_UNIT _MMIO(0x250068) +#define GT0_PLATFORM_ENERGY_STATUS _MMIO(0x25006c) + #endif /* __INTEL_GT_REGS__ */ diff --git a/drivers/gpu/drm/i915/i915_hwmon.c b/drivers/gpu/drm/i915/i915_hwmon.c index 6760133c7905..4c2e8d3cfe52 100644 --- a/drivers/gpu/drm/i915/i915_hwmon.c +++ b/drivers/gpu/drm/i915/i915_hwmon.c @@ -11,6 +11,7 @@ #include "i915_hwmon.h" #include "intel_mchbar_regs.h" #include "intel_pcode.h" +#include "gt/intel_gt.h" #include "gt/intel_gt_regs.h" /* @@ -20,7 +21,7 @@ * - curr - milliamperes * - energy - microjoules */ -#define SF_TIME 1000 +#define SF_TIME 1000 #define SF_POWER 1000000 #define SF_CURR 1000 #define SF_ENERGY 1000000 @@ -36,6 +37,7 @@ struct hwm_reg { i915_reg_t pkg_power_sku; i915_reg_t pkg_rapl_limit; i915_reg_t energy_status_all; + i915_reg_t energy_status_tile; }; struct hwm_energy_info { @@ -49,10 +51,12 @@ struct hwm_drvdata { struct device *hwmon_dev; struct hwm_energy_info ei; /* Energy info for energy1_input */ char name[12]; + int gt_n; }; struct i915_hwmon { struct hwm_drvdata ddat; + struct hwm_drvdata ddat_gt[I915_MAX_GT]; struct mutex hwmon_lock; /* counter overflow logic and rmw */ struct hwm_reg rg; u32 power_max_initial_value; @@ -148,7 +152,10 @@ hwm_energy(struct hwm_drvdata *ddat, long *energy) i915_reg_t rgaddr; u32 reg_val; - rgaddr = hwmon->rg.energy_status_all; + if (ddat->gt_n >= 0) + rgaddr = hwmon->rg.energy_status_tile; + else + rgaddr = hwmon->rg.energy_status_all; if (!i915_mmio_reg_valid(rgaddr)) return -EOPNOTSUPP; @@ -310,6 +317,11 @@ static const struct hwmon_channel_info *hwm_info[] = { NULL }; +static const struct hwmon_channel_info *hwm_gt_info[] = { + HWMON_CHANNEL_INFO(energy, HWMON_E_INPUT), + NULL +}; + /* I1 is exposed as power_crit or as curr_crit depending on bit 31 */ static int hwm_pcode_read_i1(struct drm_i915_private *i915, u32 *uval) { @@ -442,7 +454,10 @@ hwm_energy_is_visible(const struct hwm_drvdata *ddat, u32 attr) switch (attr) { case hwmon_energy_input: - rgaddr = hwmon->rg.energy_status_all; + if (ddat->gt_n >= 0) + rgaddr = hwmon->rg.energy_status_tile; + else + rgaddr = hwmon->rg.energy_status_all; return i915_mmio_reg_valid(rgaddr) ? 0444 : 0; default: return 0; @@ -577,6 +592,44 @@ static const struct hwmon_chip_info hwm_chip_info = { .info = hwm_info, }; +static umode_t +hwm_gt_is_visible(const void *drvdata, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + struct hwm_drvdata *ddat = (struct hwm_drvdata *)drvdata; + + switch (type) { + case hwmon_energy: + return hwm_energy_is_visible(ddat, attr); + default: + return 0; + } +} + +static int +hwm_gt_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, long *val) +{ + struct hwm_drvdata *ddat = dev_get_drvdata(dev); + + switch (type) { + case hwmon_energy: + return hwm_energy_read(ddat, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static const struct hwmon_ops hwm_gt_ops = { + .is_visible = hwm_gt_is_visible, + .read = hwm_gt_read, +}; + +static const struct hwmon_chip_info hwm_gt_chip_info = { + .ops = &hwm_gt_ops, + .info = hwm_gt_info, +}; + static void hwm_get_preregistration_info(struct drm_i915_private *i915) { @@ -585,7 +638,9 @@ hwm_get_preregistration_info(struct drm_i915_private *i915) struct hwm_drvdata *ddat = &hwmon->ddat; intel_wakeref_t wakeref; u32 val_sku_unit; + struct intel_gt *gt; long energy; + int i; if (IS_DG1(i915) || IS_DG2(i915)) { hwmon->rg.gt_perf_status = GEN12_RPSTAT1; @@ -593,12 +648,21 @@ hwm_get_preregistration_info(struct drm_i915_private *i915) hwmon->rg.pkg_power_sku = INVALID_MMIO_REG; hwmon->rg.pkg_rapl_limit = PCU_PACKAGE_RAPL_LIMIT; hwmon->rg.energy_status_all = PCU_PACKAGE_ENERGY_STATUS; + hwmon->rg.energy_status_tile = INVALID_MMIO_REG; + } else if (IS_XEHPSDV(i915)) { + hwmon->rg.pkg_power_sku_unit = GT0_PACKAGE_POWER_SKU_UNIT; + hwmon->rg.pkg_power_sku = INVALID_MMIO_REG; + hwmon->rg.pkg_rapl_limit = GT0_PACKAGE_RAPL_LIMIT; + hwmon->rg.energy_status_all = GT0_PLATFORM_ENERGY_STATUS; + hwmon->rg.energy_status_tile = GT0_PACKAGE_ENERGY_STATUS; + hwmon->rg.gt_perf_status = INVALID_MMIO_REG; } else { hwmon->rg.gt_perf_status = INVALID_MMIO_REG; hwmon->rg.pkg_power_sku_unit = INVALID_MMIO_REG; hwmon->rg.pkg_power_sku = INVALID_MMIO_REG; hwmon->rg.pkg_rapl_limit = INVALID_MMIO_REG; hwmon->rg.energy_status_all = INVALID_MMIO_REG; + hwmon->rg.energy_status_tile = INVALID_MMIO_REG; } with_intel_runtime_pm(uncore->rpm, wakeref) { @@ -628,6 +692,10 @@ hwm_get_preregistration_info(struct drm_i915_private *i915) */ if (i915_mmio_reg_valid(hwmon->rg.energy_status_all)) hwm_energy(ddat, &energy); + if (i915_mmio_reg_valid(hwmon->rg.energy_status_tile)) { + for_each_gt(gt, i915, i) + hwm_energy(&hwmon->ddat_gt[i], &energy); + } } void i915_hwmon_register(struct drm_i915_private *i915) @@ -636,6 +704,10 @@ void i915_hwmon_register(struct drm_i915_private *i915) struct i915_hwmon *hwmon; struct device *hwmon_dev; struct hwm_drvdata *ddat; + struct hwm_drvdata *ddat_gt; + struct intel_gt *gt; + const char *ddname; + int i; /* hwmon is available only for dGfx */ if (!IS_DGFX(i915)) @@ -652,6 +724,16 @@ void i915_hwmon_register(struct drm_i915_private *i915) ddat->hwmon = hwmon; ddat->uncore = &i915->uncore; snprintf(ddat->name, sizeof(ddat->name), "i915"); + ddat->gt_n = -1; + + for_each_gt(gt, i915, i) { + ddat_gt = hwmon->ddat_gt + i; + + ddat_gt->hwmon = hwmon; + ddat_gt->uncore = gt->uncore; + snprintf(ddat_gt->name, sizeof(ddat_gt->name), "i915_gt%u", i); + ddat_gt->gt_n = i; + } hwm_get_preregistration_info(i915); @@ -668,18 +750,50 @@ void i915_hwmon_register(struct drm_i915_private *i915) } ddat->hwmon_dev = hwmon_dev; + + for_each_gt(gt, i915, i) { + ddat_gt = hwmon->ddat_gt + i; + /* + * Create per-gt directories only if a per-gt attribute is + * visible. Currently this is only energy + */ + if (!hwm_gt_is_visible(ddat_gt, hwmon_energy, hwmon_energy_input, 0)) + continue; + + ddname = ddat_gt->name; + hwmon_dev = hwmon_device_register_with_info(dev, ddname, + ddat_gt, + &hwm_gt_chip_info, + NULL); + if (!IS_ERR(hwmon_dev)) + ddat_gt->hwmon_dev = hwmon_dev; + } } void i915_hwmon_unregister(struct drm_i915_private *i915) { struct i915_hwmon *hwmon; struct hwm_drvdata *ddat; + struct intel_gt *gt; + int i; hwmon = fetch_and_zero(&i915->hwmon); if (!hwmon) return; ddat = &hwmon->ddat; + + for_each_gt(gt, i915, i) { + struct hwm_drvdata *ddat_gt; + + ddat_gt = hwmon->ddat_gt + i; + + if (ddat_gt->hwmon_dev) { + hwmon_device_unregister(ddat_gt->hwmon_dev); + ddat_gt->hwmon_dev = NULL; + } + } + if (ddat->hwmon_dev) hwmon_device_unregister(ddat->hwmon_dev);