From patchwork Tue Mar 4 20:08:57 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Salter X-Patchwork-Id: 3766071 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C378B9F35F for ; Tue, 4 Mar 2014 20:10:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E9FC920263 for ; Tue, 4 Mar 2014 20:10:13 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EC8E22022F for ; Tue, 4 Mar 2014 20:10:12 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WKvex-0000u8-K3; Tue, 04 Mar 2014 20:09:51 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WKvev-0002GZ-0r; Tue, 04 Mar 2014 20:09:49 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WKvep-0002EV-Ck for linux-arm-kernel@lists.infradead.org; Tue, 04 Mar 2014 20:09:46 +0000 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s24K9HsW011585 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 4 Mar 2014 15:09:17 -0500 Received: from deneb.redhat.com (ovpn-113-45.phx2.redhat.com [10.3.113.45]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id s24K9Aih021187; Tue, 4 Mar 2014 15:09:16 -0500 From: Mark Salter To: Catalin Marinas Subject: [PATCH 4/5] arm64: initialize pgprot info earlier in boot Date: Tue, 4 Mar 2014 15:08:57 -0500 Message-Id: <1393963738-9210-5-git-send-email-msalter@redhat.com> In-Reply-To: <1393963738-9210-1-git-send-email-msalter@redhat.com> References: <1393963738-9210-1-git-send-email-msalter@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140304_150944_906119_C2FE520B X-CRM114-Status: GOOD ( 13.61 ) X-Spam-Score: -6.9 (------) Cc: patches@linaro.org, Will Deacon , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Salter X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, 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 Presently, paging_init() calls init_mem_pgprot() to initialize pgprot values used by macros such as PAGE_KERNEL, PAGE_KERNEL_EXEC, etc. The new fixmap and early_ioremap support also needs to use these macros before paging_init() is called. This patch moves the init_mem_pgprot() call out of paging_init() and into setup_arch() so that pgprot_default gets initialized in time for fixmap and early_ioremap. Signed-off-by: Mark Salter Acked-by: Catalin Marinas --- arch/arm64/include/asm/mmu.h | 1 + arch/arm64/kernel/setup.c | 2 ++ arch/arm64/mm/mmu.c | 3 +-- 3 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h index 2494fc0..f600d40 100644 --- a/arch/arm64/include/asm/mmu.h +++ b/arch/arm64/include/asm/mmu.h @@ -27,5 +27,6 @@ typedef struct { extern void paging_init(void); extern void setup_mm_for_reboot(void); extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt); +extern void init_mem_pgprot(void); #endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index c8e9eff..1c66cfb 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -327,6 +327,8 @@ void __init setup_arch(char **cmdline_p) *cmdline_p = boot_command_line; + init_mem_pgprot(); + parse_early_param(); arm64_memblock_init(); diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index f8dc7e8..ba259a0 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -125,7 +125,7 @@ early_param("cachepolicy", early_cachepolicy); /* * Adjust the PMD section entries according to the CPU in use. */ -static void __init init_mem_pgprot(void) +void __init init_mem_pgprot(void) { pteval_t default_pgprot; int i; @@ -357,7 +357,6 @@ void __init paging_init(void) { void *zero_page; - init_mem_pgprot(); map_mem(); /*