From patchwork Fri Jun 10 16:50:58 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gordon X-Patchwork-Id: 9170121 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 5E6B0604DB for ; Fri, 10 Jun 2016 16:51:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E8F228319 for ; Fri, 10 Jun 2016 16:51:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4379428342; Fri, 10 Jun 2016 16:51:37 +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]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 08DD128319 for ; Fri, 10 Jun 2016 16:51:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D53C26EDCB; Fri, 10 Jun 2016 16:51:33 +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 ESMTP id 51C9B6EDC8 for ; Fri, 10 Jun 2016 16:51:09 +0000 (UTC) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP; 10 Jun 2016 09:51:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,451,1459839600"; d="scan'208";a="984955688" Received: from dsgordon-linux2.isw.intel.com ([10.102.226.88]) by fmsmga001.fm.intel.com with ESMTP; 10 Jun 2016 09:51:08 -0700 From: Dave Gordon To: intel-gfx@lists.freedesktop.org Date: Fri, 10 Jun 2016 17:50:58 +0100 Message-Id: <1465577461-35616-4-git-send-email-david.s.gordon@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1465577461-35616-1-git-send-email-david.s.gordon@intel.com> References: <1465577461-35616-1-git-send-email-david.s.gordon@intel.com> Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH v2 3/6] drm/i915/guc: prefer __set/clear_bit() to bitmap_set/clear() 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 Bitmap operators are overkill when touching only one bit. Signed-off-by: Dave Gordon Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/i915_guc_submission.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c index 7510841..e198599 100644 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ b/drivers/gpu/drm/i915/i915_guc_submission.c @@ -251,7 +251,7 @@ static uint16_t assign_doorbell(struct intel_guc *guc, uint32_t priority) if (id == end) id = GUC_INVALID_DOORBELL_ID; else - bitmap_set(guc->doorbell_bitmap, id, 1); + __set_bit(id, guc->doorbell_bitmap); DRM_DEBUG_DRIVER("assigned %s priority doorbell id 0x%x\n", hi_pri ? "high" : "normal", id); @@ -261,7 +261,7 @@ static uint16_t assign_doorbell(struct intel_guc *guc, uint32_t priority) static void release_doorbell(struct intel_guc *guc, uint16_t id) { - bitmap_clear(guc->doorbell_bitmap, id, 1); + __clear_bit(id, guc->doorbell_bitmap); } /*