From patchwork Mon Mar 24 13:29:45 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Shyti X-Patchwork-Id: 14027345 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 BD900C36002 for ; Mon, 24 Mar 2025 13:31:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A8EF10E408; Mon, 24 Mar 2025 13:31:22 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="emVZDmYe"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7DEBB10E408; Mon, 24 Mar 2025 13:31:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742823081; x=1774359081; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=P6obomOq1G54LndOsjqHUJjRv+uJYxQbnF88ybgHZm4=; b=emVZDmYedn7IV/n6T8dUSDS5OrTwXNimhvNkyRODgCad2XcBZ//CwShy ehu9g9zZqG93N9t9is2lMCHJhvmAi5zCcwbT/qvstDai+1lmZrAFFKlhv 87BnltOEWuwxpCQKJCL9PY7XTPEacLD4My2W3VbPuTWsK5NdlNbe68d/o 6SwwkyeiXdKoe5d1Vfxb17ppDYr5ru8AD68lIvLx3IfH8a+vhiew7dy9m oIifj97MAZ1wpII8FiGyqG3YQ3NSxTsAOocrDBE2f8yKTy7Mp9f79pNz0 t90Qw8GflcJQfd4HMv7e8kKng84aHydYezBomwmFe5x+GFElZ9WdwTu07 g==; X-CSE-ConnectionGUID: SZoOqmuPQsqCCtBCQZuQxg== X-CSE-MsgGUID: TCyOQW3GSJeA+b0lB/oX6Q== X-IronPort-AV: E=McAfee;i="6700,10204,11383"; a="55024708" X-IronPort-AV: E=Sophos;i="6.14,272,1736841600"; d="scan'208";a="55024708" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 06:31:21 -0700 X-CSE-ConnectionGUID: rwpgbpgLSAWZQIHeD0aBPA== X-CSE-MsgGUID: /9OC9LZWSvyLWK0RubOLkQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,272,1736841600"; d="scan'208";a="155060079" Received: from slindbla-desk.ger.corp.intel.com (HELO localhost) ([10.245.246.252]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 06:31:17 -0700 From: Andi Shyti To: intel-gfx , dri-devel Cc: Tvrtko Ursulin , Joonas Lahtinen , Chris Wilson , Simona Vetter , Arshad Mehmood , Michal Mrozek , Andi Shyti , Andi Shyti Subject: [PATCH v4 09/15] drm/i915/gt: Expose the number of total CCS slices Date: Mon, 24 Mar 2025 14:29:45 +0100 Message-ID: <20250324132952.1075209-10-andi.shyti@linux.intel.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250324132952.1075209-1-andi.shyti@linux.intel.com> References: <20250324132952.1075209-1-andi.shyti@linux.intel.com> MIME-Version: 1.0 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Implement a sysfs interface to show the number of available CCS slices. The displayed number does not take into account the CCS balancing mode. Signed-off-by: Andi Shyti --- drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c | 21 +++++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.h | 1 + drivers/gpu/drm/i915/gt/intel_gt_sysfs.c | 2 ++ 3 files changed, 24 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c b/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c index fc8a23fc28b6..edb6a4b63826 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.c @@ -5,7 +5,9 @@ #include "i915_drv.h" #include "intel_gt_ccs_mode.h" +#include "intel_gt_print.h" #include "intel_gt_regs.h" +#include "intel_gt_sysfs.h" static void intel_gt_apply_ccs_mode(struct intel_gt *gt) { @@ -100,3 +102,22 @@ void intel_gt_ccs_mode_init(struct intel_gt *gt) /* Initialize the CCS mode setting */ intel_gt_apply_ccs_mode(gt); } + +static ssize_t num_cslices_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + struct intel_gt *gt = kobj_to_gt(&dev->kobj); + u32 num_slices; + + num_slices = hweight32(CCS_MASK(gt)); + + return sysfs_emit(buff, "%u\n", num_slices); +} +static DEVICE_ATTR_RO(num_cslices); + +void intel_gt_sysfs_ccs_init(struct intel_gt *gt) +{ + if (sysfs_create_file(>->sysfs_gt, &dev_attr_num_cslices.attr)) + gt_warn(gt, "Failed to create sysfs num_cslices files\n"); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.h b/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.h index 4a6763b95a78..9696cc9017f6 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_ccs_mode.h @@ -9,5 +9,6 @@ #include "intel_gt.h" void intel_gt_ccs_mode_init(struct intel_gt *gt); +void intel_gt_sysfs_ccs_init(struct intel_gt *gt); #endif /* __INTEL_GT_CCS_MODE_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c index 33cba406b569..895eedc402ae 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c @@ -12,6 +12,7 @@ #include "i915_drv.h" #include "i915_sysfs.h" #include "intel_gt.h" +#include "intel_gt_ccs_mode.h" #include "intel_gt_print.h" #include "intel_gt_sysfs.h" #include "intel_gt_sysfs_pm.h" @@ -101,6 +102,7 @@ void intel_gt_sysfs_register(struct intel_gt *gt) goto exit_fail; intel_gt_sysfs_pm_init(gt, >->sysfs_gt); + intel_gt_sysfs_ccs_init(gt); return;