From patchwork Thu Apr 28 09:28:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 8967431 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id F013DBF29F for ; Thu, 28 Apr 2016 09:35:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 18F4A20268 for ; Thu, 28 Apr 2016 09:35:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 43311200E3 for ; Thu, 28 Apr 2016 09:35:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aviL6-0004Zv-87; Thu, 28 Apr 2016 09:34:28 +0000 Received: from pandora.arm.linux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aviL0-00046m-S8 for linux-arm-kernel@lists.infradead.org; Thu, 28 Apr 2016 09:34:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References:In-Reply-To; bh=3PDEKX/1CBAFQq/xbcjeycekwRAM89AFzlXAHiJlxN8=; b=e49rC1k0zGT6K/Dm25VZcUqjMo7poYv1JPHdUQw8Y5hJtBF0h1qFn9/o/NSi8APXHC6sEW6oVl8swpkVxwcH6XqNJ0XcUE84gr8Xy3mz0Thumcv8rJThghr0b+SD+Es0Ev5fFALjnP3uShoxPB62NvQz8nCnuFoVuYrVs7tkTG8=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:45731 helo=rmk-PC.arm.linux.org.uk) by pandora.arm.linux.org.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1aviFl-0004Bu-NX; Thu, 28 Apr 2016 10:28:57 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1aviFZ-0000jq-Ex; Thu, 28 Apr 2016 10:28:45 +0100 In-Reply-To: <20160428092644.GX19428@n2100.arm.linux.org.uk> References: <20160428092644.GX19428@n2100.arm.linux.org.uk> From: Russell King To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 12/12] ARM: kexec: fix kexec for Keystone 2 MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Thu, 28 Apr 2016 10:28:45 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160428_023423_412635_908A6F0D X-CRM114-Status: GOOD ( 13.55 ) X-Spam-Score: -5.3 (-----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Tony Luck , linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Pawel Moll , Jonathan Corbet , Ian Campbell , kexec@lists.infradead.org, Fenghua Yu , Haren Myneni , Rob Herring , Eric Biederman , Santosh Shilimkar , Kumar Gala , Vivek Goyal Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide kexec with the boot view of memory by overriding the normal kexec translation functions added in a previous patch. We also need to fix a call to memblock in machine_kexec_prepare() so that we provide it with a running-view physical address rather than a boot- view physical address. Signed-off-by: Russell King --- arch/arm/include/asm/kexec.h | 24 ++++++++++++++++++++++++ arch/arm/kernel/machine_kexec.c | 2 +- 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h index c2b9b4bdec00..1869af6bac5c 100644 --- a/arch/arm/include/asm/kexec.h +++ b/arch/arm/include/asm/kexec.h @@ -53,6 +53,30 @@ static inline void crash_setup_regs(struct pt_regs *newregs, /* Function pointer to optional machine-specific reinitialization */ extern void (*kexec_reinit)(void); +static inline unsigned long phys_to_boot_phys(phys_addr_t phys) +{ + return phys_to_idmap(phys); +} +#define phys_to_boot_phys phys_to_boot_phys + +static inline phys_addr_t boot_phys_to_phys(unsigned long entry) +{ + return idmap_to_phys(entry); +} +#define boot_phys_to_phys boot_phys_to_phys + +static inline unsigned long page_to_boot_pfn(struct page *page) +{ + return page_to_pfn(page) + (arch_phys_to_idmap_offset >> PAGE_SHIFT); +} +#define page_to_boot_pfn page_to_boot_pfn + +static inline struct page *boot_pfn_to_page(unsigned long boot_pfn) +{ + return pfn_to_page(boot_pfn - (arch_phys_to_idmap_offset >> PAGE_SHIFT)); +} +#define boot_pfn_to_page boot_pfn_to_page + #endif /* __ASSEMBLY__ */ #endif /* CONFIG_KEXEC */ diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 59fd0e24c56b..b18c1ea56bed 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -57,7 +57,7 @@ int machine_kexec_prepare(struct kimage *image) for (i = 0; i < image->nr_segments; i++) { current_segment = &image->segment[i]; - if (!memblock_is_region_memory(current_segment->mem, + if (!memblock_is_region_memory(idmap_to_phys(current_segment->mem), current_segment->memsz)) return -EINVAL;