From nobody Sun Feb 8 13:27:18 2026 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=1741320043; cv=none; d=zohomail.com; s=zohoarc; b=MftE+63FLEmA9sYoEeaGdCuWIHHoDG0C3imrwOqWEfG3Oy+NCVlvVE1TLpYW9pQOnwca1dqQfvo9BW+jVBFF2hxt0CSk2oe2cblfykjk9oJ9+KwX30wuBhBG715NASsq4YA3ElZlDnhIM2HlsthQKL03Tlc+GvRKgfZ7hiivoTg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1741320043; 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=XJqYgAo8UHSVOootWBdhxcgZdcnATwb4D+Vkp8KmQH0=; b=U79QnBxGSgkeLXp/JyIdhVqcU84h/7YrpyovMjGJDloHVNyOlivNqWKKQRs8oR09VhDG4CfdBiwWlMC8VJv07Fvs3fPLd4B8/JhFdS25PRM3S61aIeCYna0hxnZ/883E5s35T09aHlItLuGe/Mj6PPc+1ryJRf+fMfuJzXGDmVo= 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 1741320042889226.09009808753308; Thu, 6 Mar 2025 20:00:42 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tqOsb-0007iK-E2; Thu, 06 Mar 2025 23:00:09 -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 1tqOsW-0007dn-GJ; Thu, 06 Mar 2025 23:00:04 -0500 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tqOsU-0004iq-Bg; Thu, 06 Mar 2025 23:00:03 -0500 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Fri, 7 Mar 2025 11:59:47 +0800 Received: from mail.aspeedtech.com (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Fri, 7 Mar 2025 11:59:47 +0800 To: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Peter Maydell , Steven Lee , Troy Lee , Andrew Jeffery , "Joel Stanley" , "open list:All patches CC here" , "open list:ASPEED BMCs" CC: , Subject: [PATCH v6 05/29] hw/intc/aspeed: Reduce regs array size by adding a register sub-region Date: Fri, 7 Mar 2025 11:59:14 +0800 Message-ID: <20250307035945.3698802-6-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250307035945.3698802-1-jamin_lin@aspeedtech.com> References: <20250307035945.3698802-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX01.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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_FAIL=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: , 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: 1741320047929019100 Currently, the size of the "regs" array is 0x2000, which is too large. So f= ar, it only uses "GICINT128 to `GICINT134", and the offsets from 0 to 0x1000 are unused. To save code size and avoid mapping large unused gaps, update to on= ly map the useful set of registers: INTC register [0x1000 =E2=80=93 0x1804] Update "reg_size" to 0x808. Introduce a new class attribute "reg_offset" to= set the start offset of a "INTC" sub-region. Set the "reg_offset" to 0x1000 for= INTC registers. Signed-off-by: Jamin Lin Reviewed-by: C=C3=A9dric Le Goater --- include/hw/intc/aspeed_intc.h | 1 + hw/intc/aspeed_intc.c | 50 ++++++++++++++++++++--------------- 2 files changed, 30 insertions(+), 21 deletions(-) diff --git a/include/hw/intc/aspeed_intc.h b/include/hw/intc/aspeed_intc.h index ec4936b3f4..208e764c4a 100644 --- a/include/hw/intc/aspeed_intc.h +++ b/include/hw/intc/aspeed_intc.h @@ -42,6 +42,7 @@ struct AspeedINTCClass { uint32_t num_ints; uint64_t mem_size; uint64_t nr_regs; + uint64_t reg_offset; }; =20 #endif /* ASPEED_INTC_H */ diff --git a/hw/intc/aspeed_intc.c b/hw/intc/aspeed_intc.c index 134922e46f..d684b4bb4f 100644 --- a/hw/intc/aspeed_intc.c +++ b/hw/intc/aspeed_intc.c @@ -14,25 +14,31 @@ #include "hw/registerfields.h" #include "qapi/error.h" =20 -/* INTC Registers */ -REG32(GICINT128_EN, 0x1000) -REG32(GICINT128_STATUS, 0x1004) -REG32(GICINT129_EN, 0x1100) -REG32(GICINT129_STATUS, 0x1104) -REG32(GICINT130_EN, 0x1200) -REG32(GICINT130_STATUS, 0x1204) -REG32(GICINT131_EN, 0x1300) -REG32(GICINT131_STATUS, 0x1304) -REG32(GICINT132_EN, 0x1400) -REG32(GICINT132_STATUS, 0x1404) -REG32(GICINT133_EN, 0x1500) -REG32(GICINT133_STATUS, 0x1504) -REG32(GICINT134_EN, 0x1600) -REG32(GICINT134_STATUS, 0x1604) -REG32(GICINT135_EN, 0x1700) -REG32(GICINT135_STATUS, 0x1704) -REG32(GICINT136_EN, 0x1800) -REG32(GICINT136_STATUS, 0x1804) +/* + * INTC Registers + * + * values below are offset by - 0x1000 from datasheet + * because its memory region is start at 0x1000 + * + */ +REG32(GICINT128_EN, 0x000) +REG32(GICINT128_STATUS, 0x004) +REG32(GICINT129_EN, 0x100) +REG32(GICINT129_STATUS, 0x104) +REG32(GICINT130_EN, 0x200) +REG32(GICINT130_STATUS, 0x204) +REG32(GICINT131_EN, 0x300) +REG32(GICINT131_STATUS, 0x304) +REG32(GICINT132_EN, 0x400) +REG32(GICINT132_STATUS, 0x404) +REG32(GICINT133_EN, 0x500) +REG32(GICINT133_STATUS, 0x504) +REG32(GICINT134_EN, 0x600) +REG32(GICINT134_STATUS, 0x604) +REG32(GICINT135_EN, 0x700) +REG32(GICINT135_STATUS, 0x704) +REG32(GICINT136_EN, 0x800) +REG32(GICINT136_STATUS, 0x804) =20 #define GICINT_STATUS_BASE R_GICINT128_STATUS =20 @@ -298,7 +304,8 @@ static void aspeed_intc_realize(DeviceState *dev, Error= **errp) memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_intc_ops, s, TYPE_ASPEED_INTC ".regs", aic->nr_regs << 2); =20 - memory_region_add_subregion(&s->iomem_container, 0x0, &s->iomem); + memory_region_add_subregion(&s->iomem_container, aic->reg_offset, + &s->iomem); =20 qdev_init_gpio_in(dev, aspeed_intc_set_irq, aic->num_ints); =20 @@ -348,7 +355,8 @@ static void aspeed_2700_intc_class_init(ObjectClass *kl= ass, void *data) aic->num_lines =3D 32; aic->num_ints =3D 9; aic->mem_size =3D 0x4000; - aic->nr_regs =3D 0x2000 >> 2; + aic->nr_regs =3D 0x808 >> 2; + aic->reg_offset =3D 0x1000; } =20 static const TypeInfo aspeed_2700_intc_info =3D { --=20 2.43.0