Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp45804imm; Tue, 24 Jul 2018 13:43:23 -0700 (PDT) X-Google-Smtp-Source: AAOMgpeQO/3mtozEPiVp2H00QivpfSipnrCGfGwoET/4h9IcmhmqeKmQNtRy1dkddRcm0M7t8WTK X-Received: by 2002:a62:4898:: with SMTP id q24-v6mr18956379pfi.58.1532465003270; Tue, 24 Jul 2018 13:43:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532465003; cv=none; d=google.com; s=arc-20160816; b=pAO1JyDIjKRMmsJ7KThX+vk3ChEreYnM6yzhPDdDBDXz9Vd3azQBlDFvK4dZCvStuv 2VDDmZGg0BGd0uRRKgdpmAIypM7xL72hYJvd+oiacRXvQQvsN13CCHQMubrAdkDDzjCd WYYSpjwnQcxIP/4mrE8O6XpsB1s7Y1OxOrr39D8vaXJbyBtsdmpzRpK/BlnrD47G2U8J rGbrkyT6Wc9FyVR8i8Bh+n91G6aZfZ2T+F2pZnooeypytG57PXg0IQ8P86ggsOFHXVXq iqD9GqIE/+k0tUgV+UUpl0rdeKGeusKjWZrFgZ9u/On1GZDtoMFAJvLmv0jQWPDQc3dE 9ZEw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:references :in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=qovcDJH4dlblz30ZJgF2eHFuJ7AepRcRg+qzJJ+pDvQ=; b=J6akZ0rfVcW1sMYcCYYLL8nefB+vFHi4CfLb4yqHyX4p6hg+SdTTKy3txid72I07fA P9aNKu1vhj0oSdZUKOzWbCbzujALs7K3aZqNFUA1vrCq2OIT5PEr+j2nFrkpWc0KJt3P uNIhPfKV3PQ/FuZHX6bGwUlo4aGb1v1t9nLaTwweNf8ZsKdAnFPn0k7pQXlDzHrUt710 HVSNCheweN0qVPbKLilIC24FsFogJv6+l8HCCBGFNkwKcQMkx88kChU8+vk6gwNPCzuV AXxulX3w+7ssTcAfxDPn1mLP41Oc2Qb0xefp6mgLgY1rlqGpZNZh45CpX98xsTfp9A5u iitA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x18-v6si11181097pfh.84.2018.07.24.13.43.08; Tue, 24 Jul 2018 13:43:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388893AbeGXVtK (ORCPT + 99 others); Tue, 24 Jul 2018 17:49:10 -0400 Received: from mga09.intel.com ([134.134.136.24]:61800 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388721AbeGXVtJ (ORCPT ); Tue, 24 Jul 2018 17:49:09 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Jul 2018 13:40:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,399,1526367600"; d="scan'208";a="74172849" Received: from rchatre-s.jf.intel.com ([10.54.70.76]) by fmsmga004.fm.intel.com with ESMTP; 24 Jul 2018 13:40:30 -0700 From: Reinette Chatre To: tglx@linutronix.de, fenghua.yu@intel.com, tony.luck@intel.com, vikas.shivappa@linux.intel.com Cc: gavin.hindman@intel.com, jithu.joseph@intel.com, dave.hansen@intel.com, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org, Reinette Chatre Subject: [RFC PATCH 7/7] video: fbdev: i810: replace direct wbinvd invoke with kernel api Date: Tue, 24 Jul 2018 13:40:18 -0700 Message-Id: X-Mailer: git-send-email 2.17.0 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The i810 driver contains a direct wbinvd invocations in the form: asm volatile ("wbinvd":::"memory") Replace this call with the kernel API "native_wbinvd()" that translates to same as "asm volatile("wbinvd" : : : "memory")" and provides a central location where calls to this destructive instruction can be tracked and potentially acted on. Signed-off-by: Reinette Chatre --- drivers/video/fbdev/i810/i810_main.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/i810/i810_main.h b/drivers/video/fbdev/i810/i810_main.h index 7bfaaad1d0fa..37fd765c89a3 100644 --- a/drivers/video/fbdev/i810/i810_main.h +++ b/drivers/video/fbdev/i810/i810_main.h @@ -54,7 +54,7 @@ static inline void i810_delete_i2c_busses(struct i810fb_par *par) { } #ifdef CONFIG_X86 static inline void flush_cache(void) { - asm volatile ("wbinvd":::"memory"); + native_wbinvd(); } #else #define flush_cache() do { } while(0) -- 2.17.0