From patchwork Thu Sep 23 22:49:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Finn Thain X-Patchwork-Id: 12513801 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD5D2C433F5 for ; Fri, 24 Sep 2021 00:12:39 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 64D75604DA for ; Fri, 24 Sep 2021 00:12:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 64D75604DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:50718 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mTYpS-00080i-JE for qemu-devel@archiver.kernel.org; Thu, 23 Sep 2021 20:12:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39852) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTYh1-000221-Jz; Thu, 23 Sep 2021 20:03:55 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:54163) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTYgz-00060a-Lk; Thu, 23 Sep 2021 20:03:55 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id E7FEA5C019C; Thu, 23 Sep 2021 20:03:52 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Thu, 23 Sep 2021 20:03:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; bh=6FN1Ik0y63ahr7n0epwO3nTzCXi+0u0UuCZ7ekaH/ RU=; b=uIIitw+w5kX8+JzbP7680+FeE0yFjv0nzqVj0EdFCM+isGrKPUjgDbgvR G0MuLAz8tyhSfL8DFDc37dK4GJ1/BEgdRQJOw1Rr2OZLryaEUdpQLI8ar+ieJrQd toPSzciaHz57L7n74DEK8x4Kkw5EJUTR8jxj2FIpTVIsOJcmds/uCH5SWngBc2U0 wThhGqGyyeLqIL7YlHJ4P59zSH5OVkmnj6dLogCmzOuRMEifol9VQF4DRBWQOBkv 0wKYzUZLUc2OEa32K2yVLzulIbeVr900y2IIZYsT2b5EFVzxnKH07367hu0D3vtc oB2PHKBxDHhjIqJxy3HvSJmvKd0KQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrudejtddgvdekucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepvffkjghfhffugggtgfffsehtkeertddttdejnecuhfhrohhmpefhihhnnhcu vfhhrghinhcuoehfthhhrghinheslhhinhhugidqmheikehkrdhorhhgqeenucggtffrrg htthgvrhhnpeeuvdevtdelfeelffdufeefteeukeektdfgieeugffhveetteevhfdvieej tdfhleenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe hfthhhrghinheslhhinhhugidqmheikehkrdhorhhg X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 23 Sep 2021 20:03:51 -0400 (EDT) To: Mark Cave-Ayland , Greg Kurz Message-Id: <1257e8f12a02c8794e0a8682ef860b569f1d9ce1.1632437396.git.fthain@linux-m68k.org> In-Reply-To: References: From: Finn Thain Subject: [PATCH v1 6/9] hw/mos6522: Call mos6522_update_irq() when appropriate MIME-Version: 1.0 Date: Fri, 24 Sep 2021 08:49:56 +1000 Received-SPF: none client-ip=66.111.4.29; envelope-from=fthain@linux-m68k.org; helo=out5-smtp.messagingengine.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, Laurent Vivier , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" It necessary to call mos6522_update_irq() when the interrupt flags change and unnecessary when they haven't. Signed-off-by: Finn Thain Reviewed-by: Philippe Mathieu-Daudé --- hw/misc/mos6522.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c index 6bd60f2118..bfe1719b18 100644 --- a/hw/misc/mos6522.c +++ b/hw/misc/mos6522.c @@ -203,10 +203,12 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size) if (now >= s->timers[0].next_irq_time) { mos6522_timer1_update(s, &s->timers[0], now); s->ifr |= T1_INT; + mos6522_update_irq(s); } if (now >= s->timers[1].next_irq_time) { mos6522_timer2_update(s, &s->timers[1], now); s->ifr |= T2_INT; + mos6522_update_irq(s); } switch (addr) { case VIA_REG_B: @@ -231,7 +233,6 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size) break; case VIA_REG_T1CH: val = get_counter(s, &s->timers[0]) >> 8; - mos6522_update_irq(s); break; case VIA_REG_T1LL: val = s->timers[0].latch & 0xff;