From patchwork Wed Feb 15 17:23:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Yongbok Kim X-Patchwork-Id: 9574523 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 3DFC460209 for ; Wed, 15 Feb 2017 17:25:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3532E284CB for ; Wed, 15 Feb 2017 17:25:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 28A3E284F6; Wed, 15 Feb 2017 17:25:59 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B834B284CB for ; Wed, 15 Feb 2017 17:25:58 +0000 (UTC) Received: from localhost ([::1]:42123 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ce3L3-0000pr-K7 for patchwork-qemu-devel@patchwork.kernel.org; Wed, 15 Feb 2017 12:25:57 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58901) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ce3KW-0000nh-1I for qemu-devel@nongnu.org; Wed, 15 Feb 2017 12:25:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ce3KS-0006Sr-81 for qemu-devel@nongnu.org; Wed, 15 Feb 2017 12:25:24 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:29550) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ce3KS-0006Sj-27 for qemu-devel@nongnu.org; Wed, 15 Feb 2017 12:25:20 -0500 Received: from hhmail02.hh.imgtec.org (unknown [10.100.10.20]) by Forcepoint Email with ESMTPS id 57D1F79180F2D; Wed, 15 Feb 2017 17:25:15 +0000 (GMT) Received: from localhost.localdomain (192.168.161.53) by hhmail02.hh.imgtec.org (10.100.10.21) with Microsoft SMTP Server (TLS) id 14.3.294.0; Wed, 15 Feb 2017 17:25:18 +0000 From: Yongbok Kim To: Date: Wed, 15 Feb 2017 17:23:48 +0000 Message-ID: <1487179434-13306-3-git-send-email-yongbok.kim@imgtec.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1487179434-13306-1-git-send-email-yongbok.kim@imgtec.com> References: <1487179434-13306-1-git-send-email-yongbok.kim@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [192.168.161.53] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 195.59.15.196 Subject: [Qemu-devel] [PATCH v4 2/8] hw/mips_gictimer: provide API for retrieving frequency X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paul Burton , Aurelien Jarno Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Paul Burton Provide a new function mips_gictimer_get_freq() which returns the frequency at which a GIC timer will count. This will be useful for boards which perform setup based upon this frequency. Signed-off-by: Paul Burton Reviewed-by: Leon Alrae Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Yongbok Kim --- hw/timer/mips_gictimer.c | 5 +++++ include/hw/timer/mips_gictimer.h | 1 + 2 files changed, 6 insertions(+) diff --git a/hw/timer/mips_gictimer.c b/hw/timer/mips_gictimer.c index 3698889..f5c5806 100644 --- a/hw/timer/mips_gictimer.c +++ b/hw/timer/mips_gictimer.c @@ -14,6 +14,11 @@ #define TIMER_PERIOD 10 /* 10 ns period for 100 Mhz frequency */ +uint32_t mips_gictimer_get_freq(MIPSGICTimerState *gic) +{ + return NANOSECONDS_PER_SECOND / TIMER_PERIOD; +} + static void gic_vptimer_update(MIPSGICTimerState *gictimer, uint32_t vp_index, uint64_t now) { diff --git a/include/hw/timer/mips_gictimer.h b/include/hw/timer/mips_gictimer.h index c8bc5d2..c7ca6c8 100644 --- a/include/hw/timer/mips_gictimer.h +++ b/include/hw/timer/mips_gictimer.h @@ -31,6 +31,7 @@ struct MIPSGICTimerState { MIPSGICTimerCB *cb; }; +uint32_t mips_gictimer_get_freq(MIPSGICTimerState *gic); uint32_t mips_gictimer_get_sh_count(MIPSGICTimerState *gic); void mips_gictimer_store_sh_count(MIPSGICTimerState *gic, uint64_t count); uint32_t mips_gictimer_get_vp_compare(MIPSGICTimerState *gictimer,