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 B0475CE8E6A for ; Thu, 24 Oct 2024 17:48:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 747B910E3A5; Thu, 24 Oct 2024 17:48:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="bddVjBAW"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id B076710E3A5 for ; Thu, 24 Oct 2024 17:48:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1729792114; x=1761328114; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to; bh=pK/B9sr5ZxPCieC7Z/QYBlEQX+2kIHitRX4AF6jkOgE=; b=bddVjBAWjybwRCdXGMWa8LYvErgw88V/wdw3In+32HWamnasQ/d0nx1b gkRIPNqPoIEAGJ5ijyT0y5ZPC9ZZ8MTNmpc3nU0YyxAoVZQ075VqnTFwS CODxLF7mAEWcmM7B6orPXUGQ762tvHaF2G+rNKMT2hPgx0qO8huEPPmP+ X6b05AThZw48MP4DL0uhhQiVr5i4B7aGaM0Dvs7lXrfFTpzRZoU0fwNTr 3XuqY7N0tc83OdTXDlCHuLS82HxAxz+3sxO0TSc2YwAdQVM9VXpxwNdtF tCBfNkvEldNNWT4FhEUhdkTiLRePCyrNKwoQRnWC9j0omNIwGfKk9IJlw g==; X-CSE-ConnectionGUID: GCgQzVy0SxKdp2BeHl2R1Q== X-CSE-MsgGUID: otag/2gDT6esI+0lV2rY8g== X-IronPort-AV: E=McAfee;i="6700,10204,11235"; a="29556059" X-IronPort-AV: E=Sophos;i="6.11,229,1725346800"; d="scan'208,217";a="29556059" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2024 10:48:33 -0700 X-CSE-ConnectionGUID: aAPlrKikTqm0uWUNt0yX5Q== X-CSE-MsgGUID: ktl7TqyTRYq3v/6GgFVoHw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,229,1725346800"; d="scan'208,217";a="111467267" Received: from nkwan-mobl.amr.corp.intel.com (HELO [10.124.131.154]) ([10.124.131.154]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2024 10:48:33 -0700 Content-Type: multipart/alternative; boundary="------------JhQFtRXqjTv27VA0pfCVS2IK" Message-ID: Date: Thu, 24 Oct 2024 10:48:26 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/1] drm/xe: enable lite restore To: fei.yang@intel.com, intel-xe@lists.freedesktop.org Cc: matthew.d.roper@intel.com References: <20241017162710.942553-1-fei.yang@intel.com> Content-Language: en-US From: Ngai-Mint Kwan In-Reply-To: <20241017162710.942553-1-fei.yang@intel.com> 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 is a multi-part message in MIME format. --------------JhQFtRXqjTv27VA0pfCVS2IK Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2024-10-17 12:27, fei.yang@intel.com wrote: > From: Fei Yang > > The lite restore is a performance improvement feature which avoids > unnecessary context switch (flush, save and rstore) if the incoming > context has a ContextID matching that of the outgoing context. The > scheduling is done by the Guc firmware, so on the driver side it's > just a matter of setting corresponding GuC_CTL_FEATURE flag. > This is supposed to be enabled by default, thus the flag is set > unconditionally. > > Signed-off-by: Fei Yang Please ensure that the version number is included when submitting revisions. Kwan > Fei Yang (1): > drm/xe: enable lite restore > > drivers/gpu/drm/xe/xe_guc.c | 2 +- > drivers/gpu/drm/xe/xe_guc_fwif.h | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > --------------JhQFtRXqjTv27VA0pfCVS2IK Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
On 2024-10-17 12:27, fei.yang@intel.com wrote:
From: Fei Yang <fei.yang@intel.com>

The lite restore is a performance improvement feature which avoids
unnecessary context switch (flush, save and rstore) if the incoming
context has a ContextID matching that of the outgoing context. The
scheduling is done by the Guc firmware, so on the driver side it's
just a matter of setting corresponding GuC_CTL_FEATURE flag.
This is supposed to be enabled by default, thus the flag is set
unconditionally.

Signed-off-by: Fei Yang <fei.yang@intel.com>

Please ensure that the version number is included when submitting revisions.

Kwan

Fei Yang (1):
  drm/xe: enable lite restore

 drivers/gpu/drm/xe/xe_guc.c      | 2 +-
 drivers/gpu/drm/xe/xe_guc_fwif.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

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