From patchwork Mon May 15 08:34:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Mahesh" X-Patchwork-Id: 9726371 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 20F1E60231 for ; Mon, 15 May 2017 08:31:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0BA0826E47 for ; Mon, 15 May 2017 08:31:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F32F02896E; Mon, 15 May 2017 08:31:28 +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 802DA26E47 for ; Mon, 15 May 2017 08:31:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C21C66E11F; Mon, 15 May 2017 08:31:27 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 961396E11F for ; Mon, 15 May 2017 08:31:26 +0000 (UTC) Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 May 2017 01:31:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,343,1491289200"; d="scan'208";a="102147686" Received: from kumarmah-desk.iind.intel.com ([10.223.26.44]) by fmsmga006.fm.intel.com with ESMTP; 15 May 2017 01:31:24 -0700 From: Mahesh Kumar To: intel-gfx@lists.freedesktop.org Date: Mon, 15 May 2017 14:04:26 +0530 Message-Id: <20170515083437.31394-2-mahesh1.kumar@intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170515083437.31394-1-mahesh1.kumar@intel.com> References: <20170515083437.31394-1-mahesh1.kumar@intel.com> Cc: paulo.r.zanoni@intel.com, maarten.lankhorst@intel.com Subject: [Intel-gfx] [PATCH 01/12] drm/i915: fix naming of fixed_16_16 wrapper. 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" fixed_16_16_div_round_up(_u64), wrapper for fixed_16_16 division operation don't really round_up the result. Wrapper round_up only the fraction part of the result to make it 16-bit. This patch eliminates round_up keyword from the wrapper. Later patch will introduce the new wrapper to do rounding-off the result and give unt32_t output to cleanup mix use of fixed_16_16_t & uint32_t variables. Signed-off-by: Mahesh Kumar Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/i915_drv.h | 6 ++---- drivers/gpu/drm/i915/intel_pm.c | 6 +++--- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ff3574a56812..f56fa1f71c11 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -153,8 +153,7 @@ static inline uint_fixed_16_16_t max_fixed_16_16(uint_fixed_16_16_t max1, return max; } -static inline uint_fixed_16_16_t fixed_16_16_div_round_up(uint32_t val, - uint32_t d) +static inline uint_fixed_16_16_t fixed_16_16_div(uint32_t val, uint32_t d) { uint_fixed_16_16_t fp, res; @@ -163,8 +162,7 @@ static inline uint_fixed_16_16_t fixed_16_16_div_round_up(uint32_t val, return res; } -static inline uint_fixed_16_16_t fixed_16_16_div_round_up_u64(uint32_t val, - uint32_t d) +static inline uint_fixed_16_16_t fixed_16_16_div_u64(uint32_t val, uint32_t d) { uint_fixed_16_16_t res; uint64_t interm_val; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index ef0e9f8d4dbd..d12bbe651dd5 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4165,7 +4165,7 @@ static uint_fixed_16_16_t skl_wm_method1(uint32_t pixel_rate, uint8_t cpp, return FP_16_16_MAX; wm_intermediate_val = latency * pixel_rate * cpp; - ret = fixed_16_16_div_round_up_u64(wm_intermediate_val, 1000 * 512); + ret = fixed_16_16_div_u64(wm_intermediate_val, 1000 * 512); return ret; } @@ -4301,8 +4301,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, if (y_tiled) { interm_pbpl = DIV_ROUND_UP(plane_bytes_per_line * y_min_scanlines, 512); - plane_blocks_per_line = - fixed_16_16_div_round_up(interm_pbpl, y_min_scanlines); + plane_blocks_per_line = fixed_16_16_div(interm_pbpl, + y_min_scanlines); } else if (x_tiled) { interm_pbpl = DIV_ROUND_UP(plane_bytes_per_line, 512); plane_blocks_per_line = u32_to_fixed_16_16(interm_pbpl);