From nobody Wed Dec 17 07:27:43 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 853FFC4167D for ; Tue, 12 Dec 2023 16:36:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376341AbjLLQgB (ORCPT ); Tue, 12 Dec 2023 11:36:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232954AbjLLQf0 (ORCPT ); Tue, 12 Dec 2023 11:35:26 -0500 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BAB0115; Tue, 12 Dec 2023 08:35:32 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id A86D2FF81C; Tue, 12 Dec 2023 16:35:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702398931; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7Hs8erXZl4NlWl7+f8VZWG3NaOSPZoMSP8HqcLsJyRM=; b=obJtsQ/LHcmycBwrOwk4+lNBMUbkfe7xBCh1X6nSMCVKfdqaokSlUAR6jnhZTxNTDT63Tp fRw1gWxHEtB0HO4Mbg52NgKSt+KIMV5iXhOc0uUrO5KTADI8e8qkftwCxVD7erTkaNUCOC q7BVeaV0BgK7SRoT9CaYql+kDxgmODUYXiXfQS+Pz+3Z5aib0vw5GYYhVnwfYH/z2cMPlR q0gNU4GLFWZLejxjLwwP3uuZ4K/bkLPS/RS43MQAgkYdOvhGOf7Drf+/5UjqYEUuEZ9AuT LZ0hbzIKHozNBgXXbQ3Q4yq70uQTU4irE0Oebaz+PsM3jONMNWm5sNBEf4vGMQ== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?UTF-8?q?Th=C3=A9o=20Lebrun?= , Thomas Petazzoni Subject: [PATCH v5 08/22] MIPS: Allow kernel base to be set from Kconfig for all platforms Date: Tue, 12 Dec 2023 17:34:40 +0100 Message-ID: <20231212163459.1923041-9-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231212163459.1923041-1-gregory.clement@bootlin.com> References: <20231212163459.1923041-1-gregory.clement@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: gregory.clement@bootlin.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Jiaxun Yang There are some platforms in wild that generic loading address won't work with them due to memory layout. Allow PHYSICAL_START to be override from Kconfig, introduce PHYSICAL_START_BOOL symbol as powerpc did. Signed-off-by: Jiaxun Yang --- arch/mips/Kconfig | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 2480a2cdddf1e..518376d578b70 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2868,12 +2868,22 @@ config ARCH_SUPPORTS_KEXEC config ARCH_SUPPORTS_CRASH_DUMP def_bool y =20 +config PHYSICAL_START_BOOL + bool "Set physical address where the kernel is loaded" + default y if CRASH_DUMP + help + This gives the CKSEG0, KSEG0 or XKPHYS address where the kernel + is loaded. + + Say N here unless you know what you are doing. + config PHYSICAL_START - hex "Physical address where the kernel is loaded" - default "0xffffffff84000000" - depends on CRASH_DUMP + hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL + default "0xffffffff84000000" if CRASH_DUMP + default "0xffffffff80100000" help - This gives the CKSEG0 or KSEG0 address where the kernel is loaded. + This gives the CKSEG0, KSEG0 or XKPHYS address where the kernel + is loaded. If you plan to use kernel for capturing the crash dump change this value to start of the reserved region (the "X" value as specified in the "crashkernel=3DYM@XM" command line boot parameter --=20 2.42.0