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 53468C3ABDA for ; Wed, 14 May 2025 08:12:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1E1D110E27C; Wed, 14 May 2025 08:12:37 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="JN+xWI3g"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8AC7710E27C for ; Wed, 14 May 2025 08:12:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747210354; x=1778746354; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SqHlHiVKY32RCkHg1KBX4eBVIPQulAIkcHTdhkrrRQ4=; b=JN+xWI3gzkcBCgYqZBjChttZaLAHiVdQIcFnAOsaiw1/EapmGyLjfr1o JM2s3gSNVlTyatMeMkQY8UP/3tNwEQxYbbpFlYsuLHSSNoC4b/ovnM+t2 5ZU0RB/r8o5yZW7phO0xtplBa9laCWqjuE4Z2ojLtO6AfGJ96hFxyzd96 M4V8cMlaEWjPabieRid/H5JMegTCv7Fm+s4RqlI05/79dGARtZeA9Tewt +rMTT49kjSRChYlts98DjYfWQHSUIGgcAJgAL8/eFaJYCTawBl7Z8usQd 4LZRV5mgfjqfr/NeWHSfymRzvJbZXauiAAjXmpsaj59Drd/2h00QU/aet w==; X-CSE-ConnectionGUID: EXGCRr6bS567Whp0zs+Evg== X-CSE-MsgGUID: 6XdO5swiTdWMYVbbFS2IyA== X-IronPort-AV: E=McAfee;i="6700,10204,11432"; a="48344110" X-IronPort-AV: E=Sophos;i="6.15,287,1739865600"; d="scan'208";a="48344110" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2025 01:12:25 -0700 X-CSE-ConnectionGUID: xFgRc2v2SLK6ECPi0Jr8Gw== X-CSE-MsgGUID: kbgCqArrQ7C7GkkXXZbIwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,287,1739865600"; d="scan'208";a="137841735" Received: from psoham-nuc7i7bnh.iind.intel.com ([10.190.216.151]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2025 01:12:22 -0700 From: Soham Purkait To: intel-xe@lists.freedesktop.org, anshuman.gupta@intel.com, badal.nilawar@intel.com, karthik.poosa@intel.com Cc: lucas.demarchi@intel.com, soham.purkait@intel.com, ashutosh.dixit@intel.com, riana.tauro@intel.com Subject: [PATCH 4/4] drm/xe/xe_debugfs: Exposure of Mods residency counter Date: Wed, 14 May 2025 13:37:21 +0530 Message-Id: <20250514080721.265515-5-soham.purkait@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250514080721.265515-1-soham.purkait@intel.com> References: <20250514080721.265515-1-soham.purkait@intel.com> 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" Add a debugfs node named mods_residency in order to obtain the ModS residency counter value. Signed-off-by: Soham Purkait --- drivers/gpu/drm/xe/xe_debugfs.c | 34 +++++++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_debugfs.h | 1 + 2 files changed, 35 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c index 66eab5528b92..240cb73800ae 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.c +++ b/drivers/gpu/drm/xe/xe_debugfs.c @@ -238,6 +238,32 @@ static ssize_t g10_residency_show(struct file *f, char __user *ubuf, return simple_read_from_buffer(ubuf, size, pos, buf, len); } +static ssize_t mods_residency_show(struct file *f, char __user *ubuf, + size_t size, loff_t *pos) +{ + u64 reg_val; + char buf[32]; + int len = 0; + int ret = 0; + struct xe_device *xe; + struct xe_mmio *mmio; + + xe = file_inode(f)->i_private; + mmio = xe_root_tile_mmio(xe); + ret = xe_pmt_telem_read(to_pci_dev(xe->drm.dev), + xe_mmio_read32(mmio, PUNIT_TELEMETRY_GUID), + ®_val, + BMG_MODS_RESIDENCY_OFFSET, + sizeof(reg_val)); + + drm_warn(&xe->drm, "ModS Residency read from mbx 0x%016llx, ret %d\n", + reg_val, ret); + + len = scnprintf(buf, sizeof(buf), "%llu\n", reg_val); + + return simple_read_from_buffer(ubuf, size, pos, buf, len); +} + static const struct file_operations wedged_mode_fops = { .owner = THIS_MODULE, .read = wedged_mode_show, @@ -254,6 +280,11 @@ static const struct file_operations g10_residency_fops = { .read = g10_residency_show, }; +static const struct file_operations mods_residency_fops = { + .owner = THIS_MODULE, + .read = mods_residency_show, +}; + void xe_debugfs_register(struct xe_device *xe) { struct ttm_device *bdev = &xe->ttm; @@ -279,6 +310,9 @@ void xe_debugfs_register(struct xe_device *xe) debugfs_create_file("g10_residency", 0444, root, xe, &g10_residency_fops); + + debugfs_create_file("mods_residency", 0444, root, xe, + &mods_residency_fops); for (mem_type = XE_PL_VRAM0; mem_type <= XE_PL_VRAM1; ++mem_type) { man = ttm_manager_type(bdev, mem_type); diff --git a/drivers/gpu/drm/xe/xe_debugfs.h b/drivers/gpu/drm/xe/xe_debugfs.h index 27fbb8d46471..55ef13662fec 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.h +++ b/drivers/gpu/drm/xe/xe_debugfs.h @@ -10,6 +10,7 @@ struct xe_device; #define BMG_G8_RESIDENCY_OFFSET (0x540) #define BMG_G10_RESIDENCY_OFFSET (0x548) +#define BMG_MODS_RESIDENCY_OFFSET (0x4D0) #ifdef CONFIG_DEBUG_FS void xe_debugfs_register(struct xe_device *xe); -- 2.34.1