From mboxrd@z Thu Jan 1 00:00:00 1970 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 1084CC7EE2A for ; Fri, 27 Jun 2025 19:07:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E2CB10E062; Fri, 27 Jun 2025 19:07:22 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ApxXUwmR"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 22F1910E062 for ; Fri, 27 Jun 2025 19:07:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751051241; x=1782587241; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=MJaGQyCkPM1ZckPhqi+KsMhpc2stc5Mu6KmJKGEdXIA=; b=ApxXUwmRuacuNxS3RbGb9N2Y0154biJjkKoUOSH4ejPxg/HSg8fod0Ol bIkTMWkdGTytK93HQDokM9wygrWcCE9IY0mzAkd+vNu/Qt5k1EAZoSCXQ l5w5F5WJdJXvmtmh8GLnkCAfdcL/1lkJfpKBH+zQot+7I1pnp25PNlA3Q w5bYu29kFD9Jy4GbPLjBxHqRXbmyZFeBv7FthN3yMa8495oD+5xlZ4j/5 GXq9fv/y7E4rHRqv+3mJPcEMT0Yr2p9kuGUNeA5bCJauins3f1pRqg2ze ut1qRp+zTzU2PJRWlxRFuthZKRdTRvD09oH++zGdxaqiNaAZwxTxfJ0lV Q==; X-CSE-ConnectionGUID: ZcWR11cUQ/K9Z/WOEMCQAg== X-CSE-MsgGUID: jxcw9NssSCiT6k7+8uakaA== X-IronPort-AV: E=McAfee;i="6800,10657,11477"; a="57181470" X-IronPort-AV: E=Sophos;i="6.16,271,1744095600"; d="scan'208";a="57181470" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jun 2025 12:07:21 -0700 X-CSE-ConnectionGUID: b2tP71iqQzuUscSUlhDScA== X-CSE-MsgGUID: SSE15tJqRK2DisUVqgS4pg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,271,1744095600"; d="scan'208";a="152974660" Received: from psoham-nuc7i7bnh.iind.intel.com ([10.190.216.151]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jun 2025 12:07:18 -0700 From: Soham Purkait To: intel-xe@lists.freedesktop.org, anshuman.gupta@intel.com, badal.nilawar@intel.com, karthik.poosa@intel.com, riana.tauro@intel.com, jonathan.cavitt@intel.com Cc: lucas.demarchi@intel.com, soham.purkait@intel.com, ashutosh.dixit@intel.com, jani.nikula@intel.com Subject: [PATCH v8 0/2] Add debugfs node to expose G-state and pcie link state residency Date: Sat, 28 Jun 2025 00:30:39 +0530 Message-Id: <20250627190041.238015-1-soham.purkait@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" This patch exposes G-state and pcie link state residency counter values through debugfs. The debugfs node "dgfx_pkg_residencies" exposes G-states counters (G2, G6, G8, G10, ModS) and "dgfx_pcie_link_residencies" exposes PCIe link states(L0, L1, L1.2) residency counters. Example: $ cat /sys/kernel/debug/dri//dgfx_pkg_residencies Package G2 : 42853454 Package G6 : 26564 Package G8 : 705212205 Package G10 : 0 Package ModS : 396016642 $ cat /sys/kernel/debug/dri//dgfx_pcie_link_residencies PCIE LINK L0 RESIDENCY : 12336019 PCIE LINK L1 RESIDENCY : 2326635578 PCIE LINK L1.2 RESIDENCY : 2326632312 Soham Purkait (2): drm/xe/regs/xe_pmt: Macros for G-State and pcie link state residency offset drm/xe/xe_debugfs: Exposure of G-State and pcie link state residency counters through debugfs drivers/gpu/drm/xe/regs/xe_pmt.h | 10 ++++ drivers/gpu/drm/xe/xe_debugfs.c | 87 ++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+) -- 2.34.1