From patchwork Wed Feb 23 05:58:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Cheng X-Patchwork-Id: 12756458 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 47FF9C433FE for ; Wed, 23 Feb 2022 05:59:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E531910E9E2; Wed, 23 Feb 2022 05:59:20 +0000 (UTC) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id CE4EF10E9D5; Wed, 23 Feb 2022 05:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1645595946; x=1677131946; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZGGKF90LmvsWYDLVJRwUsAXZp1v93VwC/mjN5XKbaus=; b=GksLpBCZthyxqSoJ96ksfJwiZAaDVi2xZMoUR76d27uYXAC+BV11LoDF Fu0fXG77NXpErvEHyeXa4XdMli5Btp+R4ReofwM1VU1rje83Wqufkxtq7 1/0E4xO8rVYpi1DhYBQJefehz/VFBTTUeATTxeAN4CAcLRC1bwlyUGxJm nOgaKGsNtDAWC/EcchPtJN5QMtca/eArdO0mPQE7XGXBDMRdOBlwfdgIY 4Ow+8txRJ1v1jUx4UHhy/G0kmmjTHXWRYpb3ILvMKqisVBgrlmMU8sSUN v/I4LaHIBUaYnnwjJbk2CjkI2HF9BAXxvq4k9AIERoPU+Q1Dx/ao+bqfe A==; X-IronPort-AV: E=McAfee;i="6200,9189,10266"; a="312606229" X-IronPort-AV: E=Sophos;i="5.88,390,1635231600"; d="scan'208";a="312606229" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Feb 2022 21:59:06 -0800 X-IronPort-AV: E=Sophos;i="5.88,390,1635231600"; d="scan'208";a="706908171" Received: from shreyasj-mobl1.amr.corp.intel.com (HELO mvcheng-desk2.intel.com) ([10.209.93.217]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Feb 2022 21:59:06 -0800 From: Michael Cheng To: intel-gfx@lists.freedesktop.org Date: Tue, 22 Feb 2022 21:58:59 -0800 Message-Id: <20220223055900.415627-6-michael.cheng@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220223055900.415627-1-michael.cheng@intel.com> References: <20220223055900.415627-1-michael.cheng@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v11 5/6] drm/i915/: Re-work clflush_write32 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: , Cc: michael.cheng@intel.com, lucas.demarchi@intel.com, dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Use drm_clflush_virt_range instead of clflushopt and remove the memory barrier, since drm_clflush_virt_range takes care of that. v2(Michael Cheng): Use sizeof(*addr) instead of sizeof(addr) to get the actual size of the page. Thanks to Matt Roper for pointing this out. Signed-off-by: Michael Cheng Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 89aa0557ade1..0ca6c3d810da 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -1333,10 +1333,8 @@ static void *reloc_vaddr(struct i915_vma *vma, static void clflush_write32(u32 *addr, u32 value, unsigned int flushes) { if (unlikely(flushes & (CLFLUSH_BEFORE | CLFLUSH_AFTER))) { - if (flushes & CLFLUSH_BEFORE) { - clflushopt(addr); - mb(); - } + if (flushes & CLFLUSH_BEFORE) + drm_clflush_virt_range(addr, sizeof(*addr)); *addr = value; @@ -1348,7 +1346,7 @@ static void clflush_write32(u32 *addr, u32 value, unsigned int flushes) * to ensure ordering of clflush wrt to the system. */ if (flushes & CLFLUSH_AFTER) - clflushopt(addr); + drm_clflush_virt_range(addr, sizeof(*addr)); } else *addr = value; }