From patchwork Thu Feb 3 20:04:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Cheng X-Patchwork-Id: 12734602 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 E7303C433F5 for ; Thu, 3 Feb 2022 20:04:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C6B7910E4C4; Thu, 3 Feb 2022 20:04:14 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4C49A10E226; Thu, 3 Feb 2022 20:04:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643918650; x=1675454650; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=o6HuYlnP32PX1lqgHE1fsvZCwjUKZXMxGSqa7+v9E8k=; b=BY+156zUzRqjEh1ztTskosFalzruNuToHkt7pFoDWzty01mnP4ch+OAG eTOgRKC14TcGov39auLssKTOQp3l0q/FhKTleyB4anHf8UZtwj50W7za/ LpPtO5/rydrOmoXAOQPEXp1QJDzo1bUEub5cZSdrAPoVCVWWZ8N4XyaUe 1GRsGwbmQpIBUZhZug6lR6lmERqEfroAvGctGcxoryiYTb9PX+mA4MBb1 xLUAJtTJW04gWHv04nrBKvXoaiIDoPxdalSZoiKDXvAvxjYgRonLV6dJR xMqU0iwtd8v19mp2UpQqXbGILSlIhDHW0GXbywkQV8lcdg5aR5d88OljG A==; X-IronPort-AV: E=McAfee;i="6200,9189,10247"; a="311545998" X-IronPort-AV: E=Sophos;i="5.88,340,1635231600"; d="scan'208";a="311545998" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2022 12:04:09 -0800 X-IronPort-AV: E=Sophos;i="5.88,340,1635231600"; d="scan'208";a="538894395" Received: from gearygra-mobl2.amr.corp.intel.com (HELO mvcheng-desk2.lan) ([10.212.225.194]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2022 12:04:09 -0800 From: Michael Cheng To: intel-gfx@lists.freedesktop.org Date: Thu, 3 Feb 2022 12:04:03 -0800 Message-Id: <20220203200403.378958-5-michael.cheng@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220203200403.378958-1-michael.cheng@intel.com> References: <20220203200403.378958-1-michael.cheng@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 4/4] 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. Signed-off-by: Michael Cheng --- 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 498b458fd784..0854276ff7ba 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -1332,10 +1332,8 @@ 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; @@ -1347,7 +1345,7 @@ 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; }