From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 43A73C2D0DB for ; Mon, 20 Jan 2020 15:17:53 +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 106472070C for ; Mon, 20 Jan 2020 15:17:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="JYbES5J6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 106472070C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38540 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1itYoK-0007KM-6n for qemu-devel@archiver.kernel.org; Mon, 20 Jan 2020 10:17:52 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:48285) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1itYn4-00060j-Nj for qemu-devel@nongnu.org; Mon, 20 Jan 2020 10:16:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1itYn0-0001d1-TS for qemu-devel@nongnu.org; Mon, 20 Jan 2020 10:16:33 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:55062 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 1itYn0-0001c3-Oz for qemu-devel@nongnu.org; Mon, 20 Jan 2020 10:16:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579533389; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ceDcdXd6xMynUik/W1MwjRvshTKnbehYFcxi7jPDo50=; b=JYbES5J6qlN0t6h6fhu4qcuVJRmDC7WoCQR0/fZHTd8M1OwwAp74p8vy/AqjqHr2sdshP6 smnu5RtbYyXkFQqW5u/CpokmNgKnS1OFb9Ni1SGX7L/UhIsiXWNm+2adoZyOAdhMD++Z1H yRxS3IpuZ0K7geRgccmttP6AM0lrP5o= 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-346-kpUMszmYPDKjWLTrWzhbOA-1; Mon, 20 Jan 2020 10:16:26 -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 BEB55DBA7; Mon, 20 Jan 2020 15:16:24 +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 D51041081333; Mon, 20 Jan 2020 15:16:22 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v3 64/84] ppc/{ppc440_bamboo,sam460ex}: drop RAM size fixup Date: Mon, 20 Jan 2020 16:14:02 +0100 Message-Id: <1579533242-175074-1-git-send-email-imammedo@redhat.com> In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: kpUMszmYPDKjWLTrWzhbOA-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] 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: david@gibson.dropbear.id.au, qemu-ppc@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" If user provided non-sense RAM size, board will complain and continue running with max RAM size supported or sometimes crash like this: %QEMU -M bamboo -m 1 exec.c:1926: find_ram_offset: Assertion `size !=3D 0' failed. Aborted (core dumped) Also RAM is going to be allocated by generic code, so it won't be possible for board to fix things up for user. Make it error message and exit to force user fix CLI, instead of accepting non-sense CLI values. That also fixes crash issue, since wrongly calculated size isn't used to allocate RAM Signed-off-by: Igor Mammedov Acked-by: David Gibson --- v2: * s/ppc4xx_sdram_adjust/ppc4xx_sdram_prep/ (BALATON Zoltan ) * print possible valid ram size id not all RAM was distributed * initialize ram_bases/ram_bases at the same time we are checking that user supplied RAM would fit available banks and drop nested loop that were duplicating the same calculations. * coincidentally fix crash when -m is less than minimal bank size v3: * s/ppc4xx_sdram_prep/ppc4xx_sdram_banks/ (BALATON Zoltan ) * fix subject line in commit message CC: balaton@eik.bme.hu CC: david@gibson.dropbear.id.au CC: qemu-ppc@nongnu.org --- include/hw/ppc/ppc4xx.h | 9 ++++---- hw/ppc/ppc440_bamboo.c | 11 ++++------ hw/ppc/ppc4xx_devs.c | 56 +++++++++++++++++++++++++--------------------= ---- hw/ppc/sam460ex.c | 5 ++--- 4 files changed, 39 insertions(+), 42 deletions(-) diff --git a/include/hw/ppc/ppc4xx.h b/include/hw/ppc/ppc4xx.h index 7d82259..b8c8f32 100644 --- a/include/hw/ppc/ppc4xx.h +++ b/include/hw/ppc/ppc4xx.h @@ -42,11 +42,10 @@ enum { qemu_irq *ppcuic_init (CPUPPCState *env, qemu_irq *irqs, uint32_t dcr_base, int has_ssr, int has_vr); =20 -ram_addr_t ppc4xx_sdram_adjust(ram_addr_t ram_size, int nr_banks, - MemoryRegion ram_memories[], - hwaddr ram_bases[], - hwaddr ram_sizes[], - const ram_addr_t sdram_bank_sizes[]); +void ppc4xx_sdram_banks(ram_addr_t ram_size, int nr_banks, + MemoryRegion ram_memories[], + hwaddr ram_bases[], hwaddr ram_sizes[], + const ram_addr_t sdram_bank_sizes[]); =20 void ppc4xx_sdram_init (CPUPPCState *env, qemu_irq irq, int nbanks, MemoryRegion ram_memories[], diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c index b782641..577f7c2 100644 --- a/hw/ppc/ppc440_bamboo.c +++ b/hw/ppc/ppc440_bamboo.c @@ -158,7 +158,6 @@ static void main_cpu_reset(void *opaque) =20 static void bamboo_init(MachineState *machine) { - ram_addr_t ram_size =3D machine->ram_size; const char *kernel_filename =3D machine->kernel_filename; const char *kernel_cmdline =3D machine->kernel_cmdline; const char *initrd_filename =3D machine->initrd_filename; @@ -203,10 +202,8 @@ static void bamboo_init(MachineState *machine) /* SDRAM controller */ memset(ram_bases, 0, sizeof(ram_bases)); memset(ram_sizes, 0, sizeof(ram_sizes)); - ram_size =3D ppc4xx_sdram_adjust(ram_size, PPC440EP_SDRAM_NR_BANKS, - ram_memories, - ram_bases, ram_sizes, - ppc440ep_sdram_bank_sizes); + ppc4xx_sdram_banks(ram_size, PPC440EP_SDRAM_NR_BANKS, ram_memories, + ram_bases, ram_sizes, ppc440ep_sdram_bank_sizes); /* XXX 440EP's ECC interrupts are on UIC1, but we've only created UIC0= . */ ppc4xx_sdram_init(env, pic[14], PPC440EP_SDRAM_NR_BANKS, ram_memories, ram_bases, ram_sizes, 1); @@ -268,7 +265,7 @@ static void bamboo_init(MachineState *machine) /* Load initrd. */ if (initrd_filename) { initrd_size =3D load_image_targphys(initrd_filename, RAMDISK_ADDR, - ram_size - RAMDISK_ADDR); + machine->ram_size - RAMDISK_ADDR= ); =20 if (initrd_size < 0) { error_report("could not load ram disk '%s' at %x", @@ -279,7 +276,7 @@ static void bamboo_init(MachineState *machine) =20 /* If we're loading a kernel directly, we must load the device tree to= o. */ if (kernel_filename) { - if (bamboo_load_device_tree(FDT_ADDR, ram_size, RAMDISK_ADDR, + if (bamboo_load_device_tree(FDT_ADDR, machine->ram_size, RAMDISK_A= DDR, initrd_size, kernel_cmdline) < 0) { error_report("couldn't load device tree"); exit(1); diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c index c2e5013..de2c87b 100644 --- a/hw/ppc/ppc4xx_devs.c +++ b/hw/ppc/ppc4xx_devs.c @@ -673,16 +673,16 @@ void ppc4xx_sdram_init (CPUPPCState *env, qemu_irq ir= q, int nbanks, * The 4xx SDRAM controller supports a small number of banks, and each ban= k * must be one of a small set of sizes. The number of banks and the suppor= ted * sizes varies by SoC. */ -ram_addr_t ppc4xx_sdram_adjust(ram_addr_t ram_size, int nr_banks, - MemoryRegion ram_memories[], - hwaddr ram_bases[], - hwaddr ram_sizes[], - const ram_addr_t sdram_bank_sizes[]) +void ppc4xx_sdram_banks(ram_addr_t ram_size, int nr_banks, + MemoryRegion ram_memories[], + hwaddr ram_bases[], hwaddr ram_sizes[], + const ram_addr_t sdram_bank_sizes[]) { MemoryRegion *ram =3D g_malloc0(sizeof(*ram)); ram_addr_t size_left =3D ram_size; ram_addr_t base =3D 0; ram_addr_t bank_size; + int last_bank =3D 0; int i; int j; =20 @@ -690,7 +690,11 @@ ram_addr_t ppc4xx_sdram_adjust(ram_addr_t ram_size, in= t nr_banks, for (j =3D 0; sdram_bank_sizes[j] !=3D 0; j++) { bank_size =3D sdram_bank_sizes[j]; if (bank_size <=3D size_left) { + ram_bases[i] =3D base; + ram_sizes[i] =3D bank_size; + base +=3D bank_size; size_left -=3D bank_size; + last_bank =3D i; } } if (!size_left) { @@ -699,34 +703,32 @@ ram_addr_t ppc4xx_sdram_adjust(ram_addr_t ram_size, i= nt nr_banks, } } =20 - ram_size -=3D size_left; if (size_left) { - error_report("Truncating memory to %" PRId64 " MiB to fit SDRAM" - " controller limits", ram_size / MiB); + ram_addr_t used_size =3D ram_size - size_left; + GString *s =3D g_string_new(NULL); + + for (i =3D 0; sdram_bank_sizes[i]; i++) { + g_string_append_printf(s, "%" PRIi64 "%s", + sdram_bank_sizes[i] / MiB, + sdram_bank_sizes[i + 1] ? " ," : ""); + } + error_report("Max %d banks of %s MB DIMM/bank supported", + nr_banks, s->str); + error_report("Possible valid RAM size: %" PRIi64, + used_size ? used_size / MiB : sdram_bank_sizes[i - 1] / MiB); + + g_string_free(s, true); + exit(EXIT_FAILURE); } =20 memory_region_allocate_system_memory(ram, NULL, "ppc4xx.sdram", ram_si= ze); =20 - size_left =3D ram_size; - for (i =3D 0; i < nr_banks && size_left; i++) { - for (j =3D 0; sdram_bank_sizes[j] !=3D 0; j++) { - bank_size =3D sdram_bank_sizes[j]; - - if (bank_size <=3D size_left) { - char name[32]; - snprintf(name, sizeof(name), "ppc4xx.sdram%d", i); - memory_region_init_alias(&ram_memories[i], NULL, name, ram= , - base, bank_size); - ram_bases[i] =3D base; - ram_sizes[i] =3D bank_size; - base +=3D bank_size; - size_left -=3D bank_size; - break; - } - } + for (i =3D 0; i <=3D last_bank; i++) { + char name[32]; + snprintf(name, sizeof(name), "ppc4xx.sdram%d", i); + memory_region_init_alias(&ram_memories[i], NULL, name, ram, + ram_bases[i], ram_sizes[i]); } - - return ram_size; } =20 /*************************************************************************= ****/ diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c index 437e214..949acba 100644 --- a/hw/ppc/sam460ex.c +++ b/hw/ppc/sam460ex.c @@ -324,9 +324,8 @@ static void sam460ex_init(MachineState *machine) /* SDRAM controller */ /* put all RAM on first bank because board has one slot * and firmware only checks that */ - machine->ram_size =3D ppc4xx_sdram_adjust(machine->ram_size, 1, - ram_memories, ram_bases, ram_sizes, - ppc460ex_sdram_bank_sizes); + ppc4xx_sdram_banks(machine->ram_size, 1, ram_memories, ram_bases, ram_= sizes, + ppc460ex_sdram_bank_sizes); =20 /* FIXME: does 460EX have ECC interrupts? */ ppc440_sdram_init(env, SDRAM_NR_BANKS, ram_memories, --=20 2.7.4