From nobody Tue Nov 26 08:31:26 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1709543646; cv=none; d=zohomail.com; s=zohoarc; b=Hvw8iASqyD1nny21mPauj2ppTvND0Vs22Y8oaQuPlpf30Nx8X5zRpoFsh7PtrX18W4Biy3sd9Vxu53zzsi8/pAw1Ve8liBXJvXyZEIc9K1EEUdjNH+C3yoXyyN8aJRi5QZwhY87k02b+HXLSJrWG1bnJCiTS/jFnOFKs8wchkLc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1709543646; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=Yi8l0UUyr5OQ3C1Ud7Q+0H+Jog/K/cSunla2/Tc9BLg=; b=L3tF/IdG/FfP1uoi9FuNRfhg/3oM7lokCk2cLLn4yWnl+GoAT+qqZQxMVZKRhKJJ+N11qtcgxpClrRpgL35ZDTYw0Tndkap6D7tXxiMX9kwRXEX3WpL7Hs4QWYY+pmslj14CoL5mMLEeJkEQT9I+G1PgP+OdTkz66CctKxzpsGc= ARC-Authentication-Results: i=1; mx.zohomail.com; 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) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709543646989962.6501704348909; Mon, 4 Mar 2024 01:14:06 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rh4NK-0007PL-5C; Mon, 04 Mar 2024 04:12:46 -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 1rh4NI-0007Oi-Fg; Mon, 04 Mar 2024 04:12:44 -0500 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX02.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1rh4NH-0003Bk-1d; Mon, 04 Mar 2024 04:12:44 -0500 Received: from TWMBX02.aspeed.com (192.168.0.24) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 4 Mar 2024 17:12:28 +0800 Received: from localhost.localdomain (192.168.10.10) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 4 Mar 2024 17:12:28 +0800 To: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Peter Maydell , Andrew Jeffery , Joel Stanley , Alistair Francis , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: , , Subject: [PATCH v1 9/9] aspeed/soc: fix incorrect dram size for AST2700 Date: Mon, 4 Mar 2024 17:12:21 +0800 Message-ID: <20240304091221.1855398-10-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240304091221.1855398-1-jamin_lin@aspeedtech.com> References: <20240304091221.1855398-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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; Received-SPF: Fail (TWMBX02.aspeed.com: domain of jamin_lin@aspeedtech.com does not designate 192.168.10.10 as permitted sender) receiver=TWMBX02.aspeed.com; client-ip=192.168.10.10; helo=localhost.localdomain; Received-SPF: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX02.aspeed.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_FAIL=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: , Reply-to: Jamin Lin From: Jamin Lin via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1709543648992100003 Content-Type: text/plain; charset="utf-8" AST2700 dram size calculation is not back compatible AST2600. According to the DDR capacity hardware behavior, if users write the data to address which is beyond the ram size, it would write the data to address 0. For example: a. sdram base address "0x4 00000000" b. sdram size is 1 GiB The available address range is from "0x4 00000000" to "0x4 40000000". If users write 0xdeadbeef to address "0x6 00000000", the value of DRAM address 0 (base address 0x4 00000000) should be 0xdeadbee= f. Adds aspeed_soc_ast2700_dram_init to calculation the dram size and add memory I/O whose address range is from max_ram_size - ram_size to max_ram_s= ize and its read/write handler to emulate DDR capacity hardware behavior. Signed-off-by: Troy Lee Signed-off-by: Jamin Lin --- hw/arm/aspeed_ast27x0.c | 94 ++++++++++++++++++++++++++++++++++++- include/hw/arm/aspeed_soc.h | 1 + 2 files changed, 94 insertions(+), 1 deletion(-) diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c index c120994e5c..b78ae9369e 100644 --- a/hw/arm/aspeed_ast27x0.c +++ b/hw/arm/aspeed_ast27x0.c @@ -20,6 +20,7 @@ #include "sysemu/sysemu.h" #include "hw/intc/arm_gicv3.h" #include "qapi/qmp/qlist.h" +#include "qemu/log.h" =20 static const hwaddr aspeed_soc_ast2700_memmap[] =3D { [ASPEED_DEV_SPI_BOOT] =3D 0x400000000, @@ -118,6 +119,97 @@ static qemu_irq aspeed_soc_ast2700_get_irq(AspeedSoCSt= ate *s, int dev) return qdev_get_gpio_in(a->intc.gic, sc->irqmap[dev]); } =20 +static uint64_t aspeed_ram_capacity_read(void *opaque, hwaddr addr, + unsigned int size) +{ + qemu_log_mask(LOG_GUEST_ERROR, + "%s: read @%" PRIx64 " out of ram size\n", + __func__, addr); + return 0; +} + +static void aspeed_ram_capacity_write(void *opaque, hwaddr addr, uint64_t = data, + unsigned int size) +{ + AspeedSoCState *s =3D ASPEED_SOC(opaque); + uint32_t test_pattern =3D 0xdeadbeef; + bool invalid_pattern =3D true; + uint32_t *ram_ptr; + int sz; + + ram_ptr =3D memory_region_get_ram_ptr(s->dram_mr); + + /* + * Emulate ddr capacity hardware behavior. + * If writes the test_pattern to address which is beyond the ram size, + * it would write the test_pattern to address 0. + */ + for (sz =3D 4; sz > 0 ; sz--) { + test_pattern =3D (test_pattern << 4) + sz; + if (data =3D=3D test_pattern) { + ram_ptr[0] =3D test_pattern; + invalid_pattern =3D false; + break; + } + } + + if (invalid_pattern) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: write invalid pattern @%" PRIx64 + " to addr @%" HWADDR_PRIx "]\n", + __func__, data, addr); + } +} + +static const MemoryRegionOps aspeed_ram_capacity_ops =3D { + .read =3D aspeed_ram_capacity_read, + .write =3D aspeed_ram_capacity_write, + .endianness =3D DEVICE_LITTLE_ENDIAN, + .valid =3D { + .min_access_size =3D 1, + .max_access_size =3D 8, + }, +}; + +/* + * SDMC should be realized first to get correct RAM size and max size + * values + */ +static bool aspeed_soc_ast2700_dram_init(DeviceState *dev, Error **errp) +{ + ram_addr_t ram_size, max_ram_size; + Aspeed27x0SoCState *a =3D ASPEED27X0_SOC(dev); + AspeedSoCState *s =3D ASPEED_SOC(dev); + AspeedSoCClass *sc =3D ASPEED_SOC_GET_CLASS(s); + + ram_size =3D object_property_get_uint(OBJECT(&s->sdmc), "ram-size", + &error_abort); + max_ram_size =3D object_property_get_uint(OBJECT(&s->sdmc), "max-ram-s= ize", + &error_abort); + + memory_region_init(&s->dram_container, OBJECT(s), "ram-container", + ram_size); + memory_region_add_subregion(&s->dram_container, 0, s->dram_mr); + + /* + * Add a memory region beyond the RAM region to emulate + * ddr capacity hardware behavior. + */ + if (ram_size < max_ram_size) { + memory_region_init_io(&a->dram_empty, OBJECT(s), + &aspeed_ram_capacity_ops, s, + "ram-empty", max_ram_size - ram_size); + + memory_region_add_subregion(s->memory, + sc->memmap[ASPEED_DEV_SDRAM] + ram_siz= e, + &a->dram_empty); + } + + memory_region_add_subregion(s->memory, + sc->memmap[ASPEED_DEV_SDRAM], &s->dram_container); + return true; +} + static void aspeed_soc_ast2700_init(Object *obj) { Aspeed27x0SoCState *a =3D ASPEED27X0_SOC(obj); @@ -362,7 +454,7 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev= , Error **errp) sc->memmap[ASPEED_DEV_SDMC]); =20 /* RAM */ - if (!aspeed_soc_dram_init(s, errp)) { + if (!aspeed_soc_ast2700_dram_init(dev, errp)) { return; } =20 diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index fab5abff9e..fae49f205b 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -126,6 +126,7 @@ struct Aspeed27x0SoCState { =20 ARMCPU cpu[ASPEED_CPUS_NUM]; AspeedINTCState intc; + MemoryRegion dram_empty; }; =20 #define TYPE_ASPEED27X0_SOC "aspeed27x0-soc" --=20 2.25.1