From patchwork Thu Apr 10 14:58:59 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ville Syrjala X-Patchwork-Id: 14046640 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 6256AC369A5 for ; Thu, 10 Apr 2025 14:59:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2392710E9E1; Thu, 10 Apr 2025 14:59:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="YtFqsOry"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id B590C10E9E0 for ; Thu, 10 Apr 2025 14:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744297151; x=1775833151; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Z6GgVa7+teHw13e28uu78eYJ8vhUs3VWBL9/7/SRxzQ=; b=YtFqsOryMskMp/UalqhkSd2fRgMw0wAYC/7MMX9Jhbv664XpZHB9xwDp JmhqulXXQ3FwJElfYjIpckh5zmnEbSRl4rBJHW6NwOwh7RmzBrm9XdFId eHNEBSVBLXwqVffzfeeFix/S5K8lB6Qj2tci0N5e/IIHsWhS3Jj6I1XT5 7D1SZ3EE2qdZA8AbuFAa42eriDCkxUcov+2WBYhZO6jorVBZdCIrMOIg7 KhzLHPtfjoTiWzLwe+vfdhtgvyG79C7df46hs4V+LiH5nTFIZJI1uXM2A 9fEHAAkvjytsB5AfiDUB/7Lz0YvFVxcM1svCp+vOmLC8NPWnrZGAm/bI9 w==; X-CSE-ConnectionGUID: 64BNAogSTSuWlEWo7pQJ+Q== X-CSE-MsgGUID: RlHxHgksTFaXfybseBzBgg== X-IronPort-AV: E=McAfee;i="6700,10204,11400"; a="71208118" X-IronPort-AV: E=Sophos;i="6.15,202,1739865600"; d="scan'208";a="71208118" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2025 07:59:11 -0700 X-CSE-ConnectionGUID: c4J4jVkKQSqUD1+W9E4Fig== X-CSE-MsgGUID: LLYTJHAVSa+D153i5mmY+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,202,1739865600"; d="scan'208";a="134101979" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by orviesa005.jf.intel.com with SMTP; 10 Apr 2025 07:59:09 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 10 Apr 2025 17:59:08 +0300 From: Ville Syrjala To: dri-devel@lists.freedesktop.org Cc: Tomi Valkeinen , Jyri Sarha Subject: [PATCH v3 1/6] drm/tilcdc: Allow build without __iowmb() Date: Thu, 10 Apr 2025 17:58:59 +0300 Message-ID: <20250410145904.25550-2-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250410145904.25550-1-ville.syrjala@linux.intel.com> References: <20250410145904.25550-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Ville Syrjälä __iowmb() isn't available on most architectures. Make its use optional so that the driver can be built on other architectures with COMPILE_TEST=y. v2: Add a comment stating this is for COMPILE_TEST (Tomi) Cc: Tomi Valkeinen Acked-by: Jyri Sarha Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/tilcdc/tilcdc_regs.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_regs.h b/drivers/gpu/drm/tilcdc/tilcdc_regs.h index f90e2dc3457c..332b24327386 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_regs.h +++ b/drivers/gpu/drm/tilcdc/tilcdc_regs.h @@ -125,7 +125,10 @@ static inline void tilcdc_write64(struct drm_device *dev, u32 reg, u64 data) #if defined(iowrite64) && !defined(iowrite64_is_nonatomic) iowrite64(data, addr); #else + /* allow compilation without __iowmb() for COMPILE_TEST */ +#ifdef __iowmb __iowmb(); +#endif /* This compiles to strd (=64-bit write) on ARM7 */ *(volatile u64 __force *)addr = __cpu_to_le64(data); #endif