From patchwork Tue Aug 20 14:58:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11103995 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1E1A714DB for ; Tue, 20 Aug 2019 15:00:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F085A22DBF for ; Tue, 20 Aug 2019 15:00:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Zo5n6fWv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F085A22DBF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+CuamhiOykW/QhMxCHZJ8I1GL1sMrFGOalRz6pmV2q0=; b=Zo5n6fWv6T3WYX a5+Ftu+KidOVa1jAhS081VI2CvZj0P1pdZC6o7nqGo48LkAsxxuzDKOHhfZc80zuwIvKExbApUCIU Twbd38eMQ6QGQbgX5c8wOwsdtBlRD5on4z+XafLV1iYJOOwTqEsZA2mRq2uq2wmWYCPPc5SXvY0Aw sQV+dN8OxQvt3Btr72ZyS0oPHAm4n9mJHoVFisYRwuyS9O04kAPilJbYNCJGbYoLivlVaHnX12q3w 75+TPO4C6WgjlZRffQAN6tSgAoVngrY2VLz23pCWNpsM6RT/Ez3ilLThCtOYWMYJIMXpvaXEoIKVe 7L+DRiAsPAXEWU3hQBAA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i05cv-0008By-Bh; Tue, 20 Aug 2019 15:00:49 +0000 Received: from mx2.suse.de ([195.135.220.15] helo=mx1.suse.de) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i05ao-000522-7O; Tue, 20 Aug 2019 14:58:40 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id CD5FCAE6D; Tue, 20 Aug 2019 14:58:36 +0000 (UTC) From: Nicolas Saenz Julienne To: catalin.marinas@arm.com, hch@lst.de, wahrenst@gmx.net, marc.zyngier@arm.com, robh+dt@kernel.org, Robin Murphy , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, iommu@lists.linux-foundation.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 06/11] arm64: rename variables used to calculate ZONE_DMA32's size Date: Tue, 20 Aug 2019 16:58:14 +0200 Message-Id: <20190820145821.27214-7-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190820145821.27214-1-nsaenzjulienne@suse.de> References: <20190820145821.27214-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190820_075838_563978_B800AEAE X-CRM114-Status: GOOD ( 11.47 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: phill@raspberryi.org, f.fainelli@gmail.com, frowand.list@gmail.com, eric@anholt.net, mbrugger@suse.com, linux-rpi-kernel@lists.infradead.org, akpm@linux-foundation.org, will@kernel.org, nsaenzjulienne@suse.de, m.szyprowski@samsung.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Let the name indicate that they are used to calculate ZONE_DMA32's size as opposed to ZONE_DMA. Signed-off-by: Nicolas Saenz Julienne --- Changes in v2: None arch/arm64/mm/init.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 6112d6c90fa8..8956c22634dd 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -50,7 +50,7 @@ s64 memstart_addr __ro_after_init = -1; EXPORT_SYMBOL(memstart_addr); -phys_addr_t arm64_dma_phys_limit __ro_after_init; +phys_addr_t arm64_dma32_phys_limit __ro_after_init; #ifdef CONFIG_KEXEC_CORE /* @@ -168,7 +168,7 @@ static void __init reserve_elfcorehdr(void) * currently assumes that for memory starting above 4G, 32-bit devices will * use a DMA offset. */ -static phys_addr_t __init max_zone_dma_phys(void) +static phys_addr_t __init max_zone_dma32_phys(void) { phys_addr_t offset = memblock_start_of_DRAM() & GENMASK_ULL(63, 32); return min(offset + (1ULL << 32), memblock_end_of_DRAM()); @@ -181,7 +181,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) unsigned long max_zone_pfns[MAX_NR_ZONES] = {0}; #ifdef CONFIG_ZONE_DMA32 - max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit); + max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma32_phys_limit); #endif max_zone_pfns[ZONE_NORMAL] = max; @@ -194,16 +194,16 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) { struct memblock_region *reg; unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; - unsigned long max_dma = min; + unsigned long max_dma32 = min; memset(zone_size, 0, sizeof(zone_size)); /* 4GB maximum for 32-bit only capable devices */ #ifdef CONFIG_ZONE_DMA32 - max_dma = PFN_DOWN(arm64_dma_phys_limit); - zone_size[ZONE_DMA32] = max_dma - min; + max_dma32 = PFN_DOWN(arm64_dma32_phys_limit); + zone_size[ZONE_DMA32] = max_dma32 - min; #endif - zone_size[ZONE_NORMAL] = max - max_dma; + zone_size[ZONE_NORMAL] = max - max_dma32; memcpy(zhole_size, zone_size, sizeof(zhole_size)); @@ -215,14 +215,14 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) continue; #ifdef CONFIG_ZONE_DMA32 - if (start < max_dma) { - unsigned long dma_end = min(end, max_dma); + if (start < max_dma32) { + unsigned long dma_end = min(end, max_dma32); zhole_size[ZONE_DMA32] -= dma_end - start; } #endif - if (end > max_dma) { + if (end > max_dma32) { unsigned long normal_end = min(end, max); - unsigned long normal_start = max(start, max_dma); + unsigned long normal_start = max(start, max_dma32); zhole_size[ZONE_NORMAL] -= normal_end - normal_start; } } @@ -407,9 +407,9 @@ void __init arm64_memblock_init(void) /* 4GB maximum for 32-bit only capable devices */ if (IS_ENABLED(CONFIG_ZONE_DMA32)) - arm64_dma_phys_limit = max_zone_dma_phys(); + arm64_dma32_phys_limit = max_zone_dma32_phys(); else - arm64_dma_phys_limit = PHYS_MASK + 1; + arm64_dma32_phys_limit = PHYS_MASK + 1; reserve_crashkernel(); @@ -417,7 +417,7 @@ void __init arm64_memblock_init(void) high_memory = __va(memblock_end_of_DRAM() - 1) + 1; - dma_contiguous_reserve(arm64_dma_phys_limit); + dma_contiguous_reserve(arm64_dma32_phys_limit); } void __init bootmem_init(void) @@ -521,7 +521,7 @@ static void __init free_unused_memmap(void) void __init mem_init(void) { if (swiotlb_force == SWIOTLB_FORCE || - max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT)) + max_pfn > (arm64_dma32_phys_limit >> PAGE_SHIFT)) swiotlb_init(1); else swiotlb_force = SWIOTLB_NO_FORCE;