From patchwork Tue May 17 22:32:32 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Filippov X-Patchwork-Id: 96056 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 3D2A3B6EED for ; Wed, 18 May 2011 08:34:03 +1000 (EST) Received: from localhost ([::1]:41928 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QMSq0-0005xl-Kf for incoming@patchwork.ozlabs.org; Tue, 17 May 2011 18:34:00 -0400 Received: from eggs.gnu.org ([140.186.70.92]:50470) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QMSpW-0005sJ-NQ for qemu-devel@nongnu.org; Tue, 17 May 2011 18:33:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QMSpV-0000Mz-Cm for qemu-devel@nongnu.org; Tue, 17 May 2011 18:33:30 -0400 Received: from mail-ew0-f45.google.com ([209.85.215.45]:37210) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QMSpV-0000KZ-7k for qemu-devel@nongnu.org; Tue, 17 May 2011 18:33:29 -0400 Received: by mail-ew0-f45.google.com with SMTP id 24so340090ewy.4 for ; Tue, 17 May 2011 15:33:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=Di0Y+EJO+Pg4yedIacneVisH6WpALO1dAH1/amxM++E=; b=ekQk3ZFjL7J6kxTla3pb/x9xgyIoQ9oUOynTUgmjhQBfZGby7/C9m4OBcls5cc3Tuv HhNH5Y9XesWkMdmRyCLI5I+QuT3asrnrYlGJ23QiVmTRxibFv5+/lsJfdfCMxrRukRPN OfkdHzdnryKgIDIQGLMYz/e5NLBrk96TEH2i8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=RxMBL/gjbTVuipPQqlBrfDkYFv8xpPTWjBUPNEd5qdsZg7isZTK3EPZ2dryPVfZcAm 0ffSrrsFCN1tHAAmsq0XVjPyDexgjQtsXDGTLAgihetpsT+tpi6xfjWPXiU+bRoHEV4Q pZVgKV+zlQNV9XTksi3WhW+sF/XXpqxU9yRPc= Received: by 10.14.45.10 with SMTP id o10mr391876eeb.58.1305671608847; Tue, 17 May 2011 15:33:28 -0700 (PDT) Received: from octofox.metropolis ([188.134.19.124]) by mx.google.com with ESMTPS id y3sm696599eeh.6.2011.05.17.15.33.26 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 17 May 2011 15:33:28 -0700 (PDT) Received: by octofox.metropolis (sSMTP sendmail emulation); Wed, 18 May 2011 02:33:25 +0400 From: Max Filippov To: qemu-devel@nongnu.org Date: Wed, 18 May 2011 02:32:32 +0400 Message-Id: <1305671572-5899-7-git-send-email-jcmvbkbc@gmail.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1305671572-5899-1-git-send-email-jcmvbkbc@gmail.com> References: <1305671572-5899-1-git-send-email-jcmvbkbc@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.215.45 Cc: Max Filippov Subject: [Qemu-devel] [PATCH 06/26] target-xtensa: add sample board X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sample board and sample CPU core are used for debug and may be used for development of custom SoC emulators. This board has two fixed size memory regions for DTCM and ITCM and variable length SRAM region. Signed-off-by: Max Filippov --- Makefile.target | 1 + hw/xtensa_sample.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 100 insertions(+), 0 deletions(-) create mode 100644 hw/xtensa_sample.c diff --git a/Makefile.target b/Makefile.target index 2b056d1..ca0db72 100644 --- a/Makefile.target +++ b/Makefile.target @@ -379,6 +379,7 @@ obj-s390x-y = s390-virtio-bus.o s390-virtio.o obj-alpha-y = alpha_palcode.o obj-xtensa-y += xtensa_pic.o +obj-xtensa-y += xtensa_sample.o main.o: QEMU_CFLAGS+=$(GPROF_CFLAGS) diff --git a/hw/xtensa_sample.c b/hw/xtensa_sample.c new file mode 100644 index 0000000..b818fed --- /dev/null +++ b/hw/xtensa_sample.c @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "sysemu.h" +#include "boards.h" +#include "loader.h" +#include "elf.h" + +static void xtensa_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + CPUState *env = NULL; + ram_addr_t ram_offset; + int n; + + for (n = 0; n < smp_cpus; n++) { + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + } + + ram_offset = qemu_ram_alloc(NULL, "xtensa.dram", 0x10000); + cpu_register_physical_memory(0x5ffd0000, 0x10000, ram_offset); + + ram_offset = qemu_ram_alloc(NULL, "xtensa.iram", 0x20000); + cpu_register_physical_memory(0x5ffe0000, 0x20000, ram_offset); + + ram_offset = qemu_ram_alloc(NULL, "xtensa.sram", ram_size); + cpu_register_physical_memory(0x60000000, ram_size, ram_offset); + + if (kernel_filename) { + uint64_t elf_entry; + uint64_t elf_lowaddr; +#ifdef TARGET_WORDS_BIGENDIAN + int success = load_elf(kernel_filename, NULL, NULL, &elf_entry, + &elf_lowaddr, NULL, 1, ELF_MACHINE, 0); +#else + int success = load_elf(kernel_filename, NULL, NULL, &elf_entry, + &elf_lowaddr, NULL, 0, ELF_MACHINE, 0); +#endif + if (success > 0) { + env->pc = elf_entry; + } + } +} + +static void xtensa_sample_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + if (!cpu_model) { + cpu_model = "sample-xtensa-core"; + } + xtensa_init(ram_size, boot_device, kernel_filename, kernel_cmdline, + initrd_filename, cpu_model); +} + +static QEMUMachine xtensa_sample_machine = { + .name = "sample-xtensa-machine", + .desc = "Sample Xtensa machine (sample Xtensa core)", + .init = xtensa_sample_init, + .max_cpus = 4, +}; + +static void xtensa_sample_machine_init(void) +{ + qemu_register_machine(&xtensa_sample_machine); +} + +machine_init(xtensa_sample_machine_init);