From patchwork Wed Dec 20 13:16:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 13500061 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 89EA2C3DA6E for ; Wed, 20 Dec 2023 13:17:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rFwRi-0007oE-T5; Wed, 20 Dec 2023 08:17:10 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rFwRa-0007nJ-L3 for qemu-devel@nongnu.org; Wed, 20 Dec 2023 08:17:06 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rFwRW-0002Id-R9 for qemu-devel@nongnu.org; Wed, 20 Dec 2023 08:17:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Wzqnhyv3COdgO/NEYFsdz6hQl8rrCxjqD6H/LIgLX2o=; b=jZNxPpfENbRufKTPw2Qw62D1E0 ltMy+6eGBtbUT2thvXoEQ3M//XZWMLb5r7h8KAq6pmSevY9c1owd2yiNHKobEiL6g9+r7NOOF1byi RqYLlYy05IIUmo1UqysVejQVOaYyY6SUi19YmsptubC00UeWuy9cPepg/qm9+URJwETOAwQNyCiuM +aJ9rgnFGCfPCgv6rPxfP52k87xqhmKE0nfgrTJSFJDqGT1heUPSYVRuCEsQ7OuAY4qFL7G6V6BkN nNURZb01TA/NrUNLC8UkdFucgTCiWO8gnPB/FY+Cqy0GoHWQOfi21TAZ0w7oKh6KFlyYCWdYfzMVr zd2/RXnKgc81byNRFhFR/mBUG1wi81plgS3Bs/d4wt8I/oUaOP1qHolJtrss/DbKG69Pxnaj/jFE7 SmRVzerKYKLQBAjjFacGOMd5qI/KsBWMbvuIJiN+YAjkZx7899Sg5//+PBzxUPuFNpvl/oZZwPIhP sJBVG10gS7HW6jDIt5fUNT4nXQedpRv/Xl6h0sRDJTWC+zlboOfcsMo0VmKLpfZrmdp6RIpd4Ze6Q Jl4Z3vCKgrNJTp1BMWt2BKDFdD4JBo8oPkmDk4+2hDosARZLiHuJLBirwyK5/C1UP0hRDxXJDYe5O pY6fHf97mti6dWOQEcs4GqJUiZyFYGafaP60A+6bE=; Received: from host86-147-134-9.range86-147.btcentralplus.com ([86.147.134.9] helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rFwR4-0001qt-7f; Wed, 20 Dec 2023 13:16:34 +0000 From: Mark Cave-Ayland To: huth@tuxfamily.org, qemu-devel@nongnu.org Date: Wed, 20 Dec 2023 13:16:32 +0000 Message-Id: <20231220131641.592826-3-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231220131641.592826-1-mark.cave-ayland@ilande.co.uk> References: <20231220131641.592826-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 86.147.134.9 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v2 02/11] next-cube.c: don't pulse SCSI DMA IRQ upon reception of FLUSH command X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Normally a DMA FLUSH command is used to ensure that data is completely written to the device and/or memory, so remove the pulse of the SCSI DMA IRQ if a DMA FLUSH command is received. This enables the NeXT ROM monitor to start to load from a SCSI disk. Signed-off-by: Mark Cave-Ayland Reviewed-by: Thomas Huth --- hw/m68k/next-cube.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index feeda23475..87ddaf4329 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -473,7 +473,6 @@ static void scr_writeb(NeXTPC *s, hwaddr addr, uint32_t value) DPRINTF("SCSICSR FIFO Flush\n"); /* will have to add another irq to the esp if this is needed */ /* esp_puflush_fifo(esp_g); */ - qemu_irq_pulse(s->scsi_dma); } if (value & SCSICSR_ENABLE) {