From nobody Mon Feb 9 02:14:24 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1579782197; cv=none; d=zohomail.com; s=zohoarc; b=d5YTmzme3w/n+omwvvjlTdFucRV701leFjIK40mlzueNGCcdBtJVt9XJFEviTQ/RD0916UYSZbmq7G4LGDJRzcrZSAujLXGT18zfGZXocxNQSMQM8Z5H0T1BaZBfc3GVcKpkNfCE+Tf2oJRAo1SHAuV9lOLIIBSgjtDUs6zE1PA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1579782197; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=sGIITkb7D8G5xvTi1dy158LZCvjOPmhSPxsTKC64JOs=; b=JjreHEKaiAP4GbIHkhs9YthzBa8ACps3ov4OQgYnY5pv5VFxF4t1QBLSOON6NFnEHAFYVWI3meNMrohRN195LxCospxSb2bEq7wxDLg14oapqVv0ntbG/dyGq2X4kCGbnl9jEBKuvbuEjTyrPnV3hhncRxEK66lgU6rZdX2nKbA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1579782197459698.3104714961028; Thu, 23 Jan 2020 04:23:17 -0800 (PST) Received: from localhost ([::1]:56100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iubVz-0005TX-I6 for importer@patchew.org; Thu, 23 Jan 2020 07:23:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:35940) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iuatF-0007aU-Fn for qemu-devel@nongnu.org; Thu, 23 Jan 2020 06:43:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iuatE-0004uo-3g for qemu-devel@nongnu.org; Thu, 23 Jan 2020 06:43:13 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:38388 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iuatD-0004ue-WE for qemu-devel@nongnu.org; Thu, 23 Jan 2020 06:43:12 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-38-IHImOq_VNEe43Yk8w4h02A-1; Thu, 23 Jan 2020 06:43:08 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 40550DB2F; Thu, 23 Jan 2020 11:43:07 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.37.153.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 89F0B100164D; Thu, 23 Jan 2020 11:43:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579779791; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sGIITkb7D8G5xvTi1dy158LZCvjOPmhSPxsTKC64JOs=; b=T07tmMaFJMKVnUk9UWDZW7XcUSaH3CwAy25KRMI04kDat5CHfdcOMkoqV4Aw118Yc8DntM SyA8P+uiihsTMzi6yZ8tu2fQuMAZ/CB5mF46VN/yfQytKVzCGw3boC0gnV4JWS2F2GtpOx L3TUzv738BH023PvBIfvmZeckx7fCx0= From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH REPOST v3 46/80] lm32/milkymist: use memdev for RAM Date: Thu, 23 Jan 2020 12:38:11 +0100 Message-Id: <1579779525-20065-47-git-send-email-imammedo@redhat.com> In-Reply-To: <1579779525-20065-1-git-send-email-imammedo@redhat.com> References: <1579779525-20065-1-git-send-email-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: IHImOq_VNEe43Yk8w4h02A-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 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: michael@walle.cc Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" memory_region_allocate_system_memory() API is going away, so replace it with memdev allocated MemoryRegion. The later is initialized by generic code, so board only needs to opt in to memdev scheme by providing MachineClass::default_ram_id and using MachineState::ram instead of manually initializing RAM memory region. PS: while at it add check for user supplied RAM size and error out if it mismatches board expected value. Signed-off-by: Igor Mammedov Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- v2: * fix format string causing build failure on 32-bit host (Philippe Mathieu-Daud=C3=A9 ) v3: * use size_to_str() to pretty print size in MiB (Philippe Mathieu-Daud=C3=A9 ) CC: michael@walle.cc --- hw/lm32/milkymist.c | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c index 460d322..22edb68 100644 --- a/hw/lm32/milkymist.c +++ b/hw/lm32/milkymist.c @@ -36,6 +36,7 @@ #include "hw/display/milkymist_tmu2.h" #include "lm32.h" #include "exec/address-spaces.h" +#include "qemu/cutils.h" =20 #define BIOS_FILENAME "mmone-bios.bin" #define BIOS_OFFSET 0x00860000 @@ -82,6 +83,7 @@ static void main_cpu_reset(void *opaque) static void milkymist_init(MachineState *machine) { + MachineClass *mc =3D MACHINE_GET_CLASS(machine); const char *kernel_filename =3D machine->kernel_filename; const char *kernel_cmdline =3D machine->kernel_cmdline; const char *initrd_filename =3D machine->initrd_filename; @@ -90,22 +92,27 @@ milkymist_init(MachineState *machine) int kernel_size; DriveInfo *dinfo; MemoryRegion *address_space_mem =3D get_system_memory(); - MemoryRegion *phys_sdram =3D g_new(MemoryRegion, 1); qemu_irq irq[32]; int i; char *bios_filename; ResetInfo *reset_info; =20 + if (machine->ram_size !=3D mc->default_ram_size) { + char *sz =3D size_to_str(mc->default_ram_size); + error_report("Invalid RAM size, should be %s", sz); + g_free(sz); + exit(EXIT_FAILURE); + } + /* memory map */ hwaddr flash_base =3D 0x00000000; size_t flash_sector_size =3D 128 * KiB; size_t flash_size =3D 32 * MiB; hwaddr sdram_base =3D 0x40000000; - size_t sdram_size =3D 128 * MiB; =20 hwaddr initrd_base =3D sdram_base + 0x1002000; hwaddr cmdline_base =3D sdram_base + 0x1000000; - size_t initrd_max =3D sdram_size - 0x1002000; + size_t initrd_max =3D machine->ram_size - 0x1002000; =20 reset_info =3D g_malloc0(sizeof(ResetInfo)); =20 @@ -116,9 +123,7 @@ milkymist_init(MachineState *machine) =20 cpu_lm32_set_phys_msb_ignore(env, 1); =20 - memory_region_allocate_system_memory(phys_sdram, NULL, "milkymist.sdra= m", - sdram_size); - memory_region_add_subregion(address_space_mem, sdram_base, phys_sdram); + memory_region_add_subregion(address_space_mem, sdram_base, machine->ra= m); =20 dinfo =3D drive_get(IF_PFLASH, 0, 0); /* Numonyx JS28F256J3F105 */ @@ -183,7 +188,7 @@ milkymist_init(MachineState *machine) =20 if (kernel_size < 0) { kernel_size =3D load_image_targphys(kernel_filename, sdram_bas= e, - sdram_size); + machine->ram_size); reset_info->bootstrap_pc =3D sdram_base; } =20 @@ -216,6 +221,8 @@ static void milkymist_machine_init(MachineClass *mc) mc->init =3D milkymist_init; mc->is_default =3D 0; mc->default_cpu_type =3D LM32_CPU_TYPE_NAME("lm32-full"); + mc->default_ram_size =3D 128 * MiB; + mc->default_ram_id =3D "milkymist.sdram"; } =20 DEFINE_MACHINE("milkymist", milkymist_machine_init) --=20 2.7.4