From patchwork Sun Dec 22 12:59:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 13918053 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 3C125E77188 for ; Sun, 22 Dec 2024 13:04:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tPLdI-00015f-6p; Sun, 22 Dec 2024 08:04:32 -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 1tPLaG-0005R6-K3 for qemu-devel@nongnu.org; Sun, 22 Dec 2024 08:01:27 -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 1tPLa6-0000hw-2f for qemu-devel@nongnu.org; Sun, 22 Dec 2024 08:01:18 -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; bh=AOTGT8AWntPRxv3ItV58MPUmZgtO3Ow4OQkFZaxwT+s=; b=hKmHFZ37mw0DvqbADlbKnqt24n UDAqEsoQU783s0zuKR60QgXI7klaAda4glkokuO+yl0JUnWH1F/VENkt3jqOv5HgonLgr5cjRYuGf pIDhFjSjzRcOkA4uGjUSN+m5ruxIHERdWTA42C3FmRgdwWEMfwcr9Q2IyPUqRmwVHtIRH1bbHAieU d+LZgv3RY2n3v9yIb0ozA2b9pld0Wb9o9MCor/rsrcPBLvUUDgh6woLJXYIUjuR1XFRx+1lKKLBH9 sBzIk4i6ZL9/XZBPgGWNXMLoHEMuk1RPWpC1gNUJe1pvdhL3m7H8eqJLWRg6MHRf7TaUucoFMPRbF 2thbaZk/sBh9LSMyndjE4aDSZruf9CvCoAu1sKO3mhTMtQEDZCyNE7k/NY2ZhTigNS3hQQxO4LRlp SoryuZX2z40k70jDOpKUIofKb+/jFqxQqv/7kl+Ma0uLP8nL4iZEIaGN0Xhmmu0DlZ+UadVu9TfSM m5r8YkCso/1Ou6MLKvEx/D0rRV6pn6QVGT1kIWx9Bfe6t4wHxsygFIUuzwWPjdCiUlcMxCdXJJx0m cvbE3RWXgyIxiNCj59dqBGPlmD0aSWrTkths0zU07hbv4FCn7dN+Ch6lLWggUHBe8pyfHdvMJbpJT wytXOeEdx3o1aSg0Ig53+8tFShB7AbDCciKqZRoFM=; Received: from [2a02:8012:2f01:0:33a9:475d:1cd9:884] (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 1tPLZR-0002L7-5e; Sun, 22 Dec 2024 13:00:37 +0000 From: Mark Cave-Ayland To: huth@tuxfamily.org, qemu-devel@nongnu.org Date: Sun, 22 Dec 2024 12:59:52 +0000 Message-Id: <20241222130012.1013374-14-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241222130012.1013374-1-mark.cave-ayland@ilande.co.uk> References: <20241222130012.1013374-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a02:8012:2f01:0:33a9:475d:1cd9:884 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v3 13/33] next-cube: move en ethernet MMIO to separate memory region on next-pc device 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 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 Move the en ethernet MMIO accesses to a separate memory region on the next-pc device instead of being part of the next.scr MMIO memory region. Signed-off-by: Mark Cave-Ayland Reviewed-by: Thomas Huth --- hw/m68k/next-cube.c | 48 +++++++++++++++++++++++++++++++++++++-------- 1 file changed, 40 insertions(+), 8 deletions(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index a84106219f..32d1108b2a 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -110,6 +110,7 @@ struct NeXTPC { MemoryRegion floppy_mem; MemoryRegion timer_mem; + MemoryRegion dummyen_mem; MemoryRegion mmiomem; MemoryRegion scrmem; @@ -372,11 +373,6 @@ static uint64_t next_scr_readfn(void *opaque, hwaddr addr, unsigned size) uint64_t val; switch (addr) { - /* For now return dummy byte to allow the Ethernet test to timeout */ - case 0x6000: - val = 0xff; - break; - default: DPRINTF("BMAP Read @ 0x%x size %u\n", (unsigned int)addr, size); val = 0; @@ -1012,6 +1008,38 @@ static const MemoryRegionOps next_timer_ops = { .endianness = DEVICE_BIG_ENDIAN, }; +static void next_dummy_en_write(void *opaque, hwaddr addr, uint64_t val, + unsigned size) +{ + /* Do nothing */ + return; +} + +static uint64_t next_dummy_en_read(void *opaque, hwaddr addr, unsigned size) +{ + uint64_t val; + + switch (addr) { + case 0: + /* For now return dummy byte to allow the Ethernet test to timeout */ + val = 0xff; + break; + + default: + val = 0; + } + + return val; +} + +static const MemoryRegionOps next_dummy_en_ops = { + .read = next_dummy_en_read, + .write = next_dummy_en_write, + .valid.min_access_size = 1, + .valid.max_access_size = 4, + .endianness = DEVICE_BIG_ENDIAN, +}; + static void next_pc_reset(DeviceState *dev) { NeXTPC *s = NEXT_PC(dev); @@ -1034,6 +1062,10 @@ static void next_pc_realize(DeviceState *dev, Error **errp) SysBusDevice *sbd; DeviceState *d; + /* en network (dummy) */ + memory_region_add_subregion(&s->scrmem, 0x6000, + &s->dummyen_mem); + /* SCSI */ sbd = SYS_BUS_DEVICE(&s->next_scsi); if (!sysbus_realize(sbd, errp)) { @@ -1093,6 +1125,9 @@ static void next_pc_init(Object *obj) sysbus_init_mmio(sbd, &s->mmiomem); sysbus_init_mmio(sbd, &s->scrmem); + memory_region_init_io(&s->dummyen_mem, OBJECT(s), &next_dummy_en_ops, s, + "next.en", 0x20); + object_initialize_child(obj, "next-scsi", &s->next_scsi, TYPE_NEXT_SCSI); memory_region_init_io(&s->floppy_mem, OBJECT(s), &next_floppy_ops, s, @@ -1238,9 +1273,6 @@ static void next_cube_init(MachineState *machine) } } - /* TODO: */ - /* Network */ - /* DMA */ memory_region_init_io(&m->dmamem, NULL, &next_dma_ops, machine, "next.dma", 0x5000);