From patchwork Thu Aug 17 13:45:22 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Mahesh" X-Patchwork-Id: 9906339 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E142960386 for ; Thu, 17 Aug 2017 13:41:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D3D2728A9B for ; Thu, 17 Aug 2017 13:41:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C875E28AAA; Thu, 17 Aug 2017 13:41:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5A1B928A9B for ; Thu, 17 Aug 2017 13:41:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D76726E359; Thu, 17 Aug 2017 13:41:02 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7EED96E359 for ; Thu, 17 Aug 2017 13:41:01 +0000 (UTC) Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Aug 2017 06:40:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,387,1498546800"; d="scan'208";a="141450457" Received: from unknown (HELO localhost.localdomain) ([10.223.25.241]) by fmsmga006.fm.intel.com with ESMTP; 17 Aug 2017 06:40:57 -0700 From: Mahesh Kumar To: intel-gfx@lists.freedesktop.org Date: Thu, 17 Aug 2017 19:15:22 +0530 Message-Id: <20170817134529.2839-2-mahesh1.kumar@intel.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170817134529.2839-1-mahesh1.kumar@intel.com> References: <20170817134529.2839-1-mahesh1.kumar@intel.com> Cc: jani.nikula@intel.com, paulo.r.zanoni@intel.com, maarten.lankhorst@intel.com Subject: [Intel-gfx] [PATCH 1/8] drm/i915: Fixed point fixed16 wrapper cleanup X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: "Kumar, Mahesh" As per suggestion from Jani, cleanup the code. Cleanup includes - Instead of left shifting & check, compare with U32/16_MAX - Use typecast instead of clamp_t Signed-off-by: Mahesh Kumar Cc: Jani Nikula Reviewed-by: Jani Nikula Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/i915_drv.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6c25c8520c87..fa5858da2ca0 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -126,7 +126,7 @@ static inline uint_fixed_16_16_t u32_to_fixed16(uint32_t val) { uint_fixed_16_16_t fp; - WARN_ON(val >> 16); + WARN_ON(val > U16_MAX); fp.val = val << 16; return fp; @@ -163,8 +163,8 @@ static inline uint_fixed_16_16_t max_fixed16(uint_fixed_16_16_t max1, static inline uint_fixed_16_16_t clamp_u64_to_fixed16(uint64_t val) { uint_fixed_16_16_t fp; - WARN_ON(val >> 32); - fp.val = clamp_t(uint32_t, val, 0, ~0); + WARN_ON(val > U32_MAX); + fp.val = (uint32_t) val; return fp; } @@ -181,8 +181,8 @@ static inline uint32_t mul_round_up_u32_fixed16(uint32_t val, intermediate_val = (uint64_t) val * mul.val; intermediate_val = DIV_ROUND_UP_ULL(intermediate_val, 1 << 16); - WARN_ON(intermediate_val >> 32); - return clamp_t(uint32_t, intermediate_val, 0, ~0); + WARN_ON(intermediate_val > U32_MAX); + return (uint32_t) intermediate_val; } static inline uint_fixed_16_16_t mul_fixed16(uint_fixed_16_16_t val, @@ -211,8 +211,8 @@ static inline uint32_t div_round_up_u32_fixed16(uint32_t val, interm_val = (uint64_t)val << 16; interm_val = DIV_ROUND_UP_ULL(interm_val, d.val); - WARN_ON(interm_val >> 32); - return clamp_t(uint32_t, interm_val, 0, ~0); + WARN_ON(interm_val > U32_MAX); + return (uint32_t) interm_val; } static inline uint_fixed_16_16_t mul_u32_fixed16(uint32_t val,