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[209.132.180.67]) by mx.google.com with ESMTP id qh7si4967379ejb.280.2019.09.12.10.32.52; Thu, 12 Sep 2019 10:33:16 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@c-s.fr header.s=mail header.b=qrUvIVrv; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732262AbfILNto (ORCPT + 99 others); Thu, 12 Sep 2019 09:49:44 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:55649 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731209AbfILNtn (ORCPT ); Thu, 12 Sep 2019 09:49:43 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 46Tg9w1RXhz9tyn5; Thu, 12 Sep 2019 15:49:40 +0200 (CEST) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=qrUvIVrv; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id hpAv2H5-e49M; Thu, 12 Sep 2019 15:49:40 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 46Tg9w0PGXz9tyn0; Thu, 12 Sep 2019 15:49:40 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1568296180; bh=xYjdjMd3IzqCkqX7OFLoQ6OwTDjszHtjM+gPrZ7fiKs=; h=In-Reply-To:References:From:Subject:To:Cc:Date:From; b=qrUvIVrvUWkV/DGEmSsWceBFvK/c6pNvodtTxhG+OSUnqtRM2byxN7EGqRtqmFR4R t8uzBhKIQcqONramjupGlwEmGC3PWV6VH4DjU7lCb0iblNUrQFkSb3eDMorD9p2BrI Pb3mF1+1UNyNnSdqBaNQddbJmmfgpgEnVxRoWQro= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 90ADB8B93B; Thu, 12 Sep 2019 15:49:41 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id KZIelHUJ8zoG; Thu, 12 Sep 2019 15:49:41 +0200 (CEST) Received: from pc16032vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 5AEBF8B933; Thu, 12 Sep 2019 15:49:41 +0200 (CEST) Received: by pc16032vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 3D6236B736; Thu, 12 Sep 2019 13:49:41 +0000 (UTC) Message-Id: <41c99bc06394a6bc2888631cb98a3ed2ae281ddb.1568295907.git.christophe.leroy@c-s.fr> In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v1 1/4] powerpc/fixmap: don't clear fixmap area in paging_init() To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , npiggin@gmail.com, hch@infradead.org Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Thu, 12 Sep 2019 13:49:41 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org fixmap is intended to map things permanently like the IMMR region on FSL SOC (8xx, 83xx, ...), so don't clear it when initialising paging() Signed-off-by: Christophe Leroy --- arch/powerpc/mm/mem.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index be941d382c8d..278be4712e10 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -216,14 +216,6 @@ void __init paging_init(void) unsigned long long total_ram = memblock_phys_mem_size(); phys_addr_t top_of_ram = memblock_end_of_DRAM(); -#ifdef CONFIG_PPC32 - unsigned long v = __fix_to_virt(__end_of_fixed_addresses - 1); - unsigned long end = __fix_to_virt(FIX_HOLE); - - for (; v < end; v += PAGE_SIZE) - map_kernel_page(v, 0, __pgprot(0)); /* XXX gross */ -#endif - #ifdef CONFIG_HIGHMEM map_kernel_page(PKMAP_BASE, 0, __pgprot(0)); /* XXX gross */ pkmap_page_table = virt_to_kpte(PKMAP_BASE); -- 2.13.3