From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 12 May 2023 13:11:51 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pxQgg-00F2SU-Hb for lore@lore.pengutronix.de; Fri, 12 May 2023 13:11:51 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pxQge-00051c-NC for lore@pengutronix.de; Fri, 12 May 2023 13:11:49 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5YOwxVG4qEl9LpkexGWlizlh6eH+9JdX9IDPFMzSMy8=; b=Wnz5Yf9BQsmN4omTgXEHxEDGxC 4CF4cKHeXVlBm1GGxbpmy9lPmau7NYjdfQPpwsrf9mbJpBj6x1xNBDXYgBVvJ2N0H4qdoh9nEtM2K Bf7RRQipaFczqSk3Atug4SezK2t3wC9jyCNMt4jx4vtu8Eph7EeSHiI1SzsVUDKUL9xj3mVJlxhv0 RhEq4uIoMz6AgyhmwdYAzkBmcpBipPH0uR4MJEbgaGl7MyIK9yvMHrsH2hl8RcE6PCn8rWsXooidN L9LCg7/LjfHGq/5T7YYA1nBMbUkjrnMghWhKq4mn7PjuBaMZ4UFKr2/3lHZbOHYSL0H3bQJANaxWI AERthg/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pxQfV-00BkAl-1N; Fri, 12 May 2023 11:10:37 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pxQfJ-00Bjzh-1P for barebox@bombadil.infradead.org; Fri, 12 May 2023 11:10:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=5YOwxVG4qEl9LpkexGWlizlh6eH+9JdX9IDPFMzSMy8=; b=lC7+JA0JVbstRWu+h8HYGvKPw4 Bw90mx/SSKV1q6u7cxJMo195HIulp3wqsxswnl7SUg5xrGNt5RKThouU8/V6B7NxrU/jI22EWgTcT HnMEBSVM0Tc8PnVPOsRPQsSRrqzdrNlRNWm4SZ5zDMJyGnFFo3ADbkINUDKfDK7+WTaEQ4lfZ1kK9 sfzgpKwLnpA1CHyosuFKsiIrA2i6+khT6If93HvnTxRkARJ/TP3V4PLCvFGj16JCfb7nrKXQjtHKM 4+iqnzsaNTK/Fg2buHpLXZD5R65IMMn/w5IUPN95A55FVpxusDrqA13hpYeqTITX3Rw3pIUixhN+g xHSXiDCQ==; Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pxQfF-00982y-0m for barebox@lists.infradead.org; Fri, 12 May 2023 11:10:23 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pxQf8-0003eC-MV; Fri, 12 May 2023 13:10:14 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pxQf7-002wjl-Tg; Fri, 12 May 2023 13:10:13 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pxQf4-0055F4-Hg; Fri, 12 May 2023 13:10:10 +0200 From: Sascha Hauer To: Barebox List Date: Fri, 12 May 2023 13:10:07 +0200 Message-Id: <20230512111008.1120833-27-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230512111008.1120833-1-s.hauer@pengutronix.de> References: <20230512111008.1120833-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230512_121021_385800_2BC4E0C2 X-CRM114-Status: GOOD ( 11.19 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 26/27] ARM: mmu32: Skip reserved ranges during initialization X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) The early MMU code now uses pages to map the OP-TEE area non executable. This mapping is overwritten with sections in barebox proper. Refrain from doing so by using arch_remap_range() and bypassing reserved areas. Signed-off-by: Sascha Hauer --- arch/arm/cpu/mmu_32.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm/cpu/mmu_32.c b/arch/arm/cpu/mmu_32.c index c52b6d3a8b..dc4b0e414d 100644 --- a/arch/arm/cpu/mmu_32.c +++ b/arch/arm/cpu/mmu_32.c @@ -528,9 +528,17 @@ void __mmu_init(bool mmu_on) vectors_init(); for_each_memory_bank(bank) { - create_sections(bank->start, bank->start + bank->size - 1, - PMD_SECT_DEF_CACHED); - __mmu_cache_flush(); + struct resource *rsv; + resource_size_t pos; + + pos = bank->start; + + for_each_reserved_region(bank, rsv) { + arch_remap_range((void *)pos, rsv->start - pos, MAP_CACHED); + pos = rsv->end + 1; + } + + arch_remap_range((void *)pos, bank->start + bank->size - pos, MAP_CACHED); } } -- 2.39.2