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 1FA5DE7717D for ; Wed, 11 Dec 2024 06:42:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CD22810E06B; Wed, 11 Dec 2024 06:42:20 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="OFgnThVc"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id C4D2A10E06B for ; Wed, 11 Dec 2024 06:42:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733899340; x=1765435340; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=HKLPy09RWqG7xDQxkzlWQRxnjFrInOF2LYOyrg1fjOU=; b=OFgnThVcTt3tm7qCkz3G8lOERwV3QYlmOIZbNfzqKp1yfm480jdkE9B/ TszKsBqwq6n21fFySTpKmtOEKEwG0+b6aOdpy5EJ/36G48BqspCQDBC9K d3IuDDCP5kMKtDwtFC8X0b4b8vezkqmh6za6r4VBb4NPQNAZjKpexcWXc Pvk8mJt7UyWn+a5KFLNjPQBPncWYT5lG52eipeuNH4gdulSJGU7Kac3rY EiUMqb66fASUODTMJXmcEQyQgOAaHYE8IrAwSdg34YLeintcxw+IIqMaP MFr9uP24TBzL4uEpZKP9H6AtSZOEwlJlIN0bVUTX6N2xnNRhldPOmqOGL w==; X-CSE-ConnectionGUID: M946z9Y2R32SHQjDhTSi/w== X-CSE-MsgGUID: baUinfdtR7e6Nn5vgz/iDg== X-IronPort-AV: E=McAfee;i="6700,10204,11282"; a="44739287" X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208,223";a="44739287" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2024 22:42:20 -0800 X-CSE-ConnectionGUID: PDhYLxbFTzK3evS0tvwI8A== X-CSE-MsgGUID: acKssk4ARS+5DAR3NIF3mA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208,223";a="126605977" Received: from mbernato-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.97.233]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2024 22:42:16 -0800 From: Marcin Bernatowicz To: intel-xe@lists.freedesktop.org Cc: Marcin Bernatowicz , Adam Miszczak , Jakub Kolakowski , Lucas De Marchi , Lukasz Laguna , Matt Roper , Michal Wajdeczko , Michal Winiarski , Narasimha C V , Piotr Piorkowski , Satyanarayana K V P , Tomasz Lis Subject: [PATCH v2 0/3] VF: Avoid reading inaccessible registers Date: Wed, 11 Dec 2024 07:42:08 +0100 Message-Id: <20241211064211.781820-1-marcin.bernatowicz@linux.intel.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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" >From VF-level some registers are not accessible. Don't check for flat ccs from VF-level, also don't use Wa_22019338487 for VF. v2: Updated description for has_flat_ccs flag setting on VF when disabled in BIOS. (Matt) Reworked workaround ommision on VF to use the RTP mechanism. (Matt) Cc: Adam Miszczak Cc: Jakub Kolakowski Cc: Lucas De Marchi Cc: Lukasz Laguna Cc: Matt Roper Cc: Michal Wajdeczko Cc: Michal Winiarski Cc: Narasimha C V Cc: Piotr Piorkowski Cc: Satyanarayana K V P Cc: Tomasz Lis Jakub Kolakowski (1): drm/xe/vf: Don't check has flat ccs in bios on VF Marcin Bernatowicz (2): drm/xe/rtp: Add match helper to omit SR-IOV VF device drm/xe/vf: Don't apply Wa_22019338487 for VF drivers/gpu/drm/xe/xe_device.c | 2 +- drivers/gpu/drm/xe/xe_rtp.c | 5 +++++ drivers/gpu/drm/xe/xe_rtp.h | 11 +++++++++++ drivers/gpu/drm/xe/xe_wa_oob.rules | 2 +- 4 files changed, 18 insertions(+), 2 deletions(-) -- 2.31.1