From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FD0BC433B4 for ; Thu, 22 Apr 2021 07:21:35 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 86708613F2 for ; Thu, 22 Apr 2021 07:21:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 86708613F2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FQpkj0rTLz3ckd for ; Thu, 22 Apr 2021 17:21:33 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=OYuuEeJv; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=batv+ccca8c562e79e8576e72+6451+infradead.org+hch@bombadil.srs.infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=OYuuEeJv; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4FQphk72Fxz3bp8 for ; Thu, 22 Apr 2021 17:19:47 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=dYyH/8K4Q8sCxeRfrx+sXZtnFZXl8dFeAAsbGjqR53E=; b=OYuuEeJvdRaOhc/KxZZh+gdgIc Pp/EPZXmB/fYLLqsRz/c0KwUZj/GOo1pdbdH6soycjs2KejEXIVJNZ7tQ+lf9O/LsH+jTFSSDOzZd t+gxtZRNuq7rxDeh6ySTt1AVSqrH2MQViV22MbxnRmy068+lzX+O0JLxqXQH/5IrHfRCI5qY6KpdA kaiQpAzWqDtiwzjkobuFUj9pclIHoEBzbD+b8LiqZ2sMabrUaOwnYHY7zIP1d8+0eoimCFxhiNNI9 fJTUcQe8yUYVqIZp8UrHTvtUKr17zjKQySXJ4neE19YZy4WQ85r+8TPO/CfTvbmt0vZI1mUJDDUES tQclwPXQ==; Received: from [2001:4bb8:19b:f845:15fc:cef6:715a:fb03] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lZTcd-00DRlK-3P; Thu, 22 Apr 2021 07:19:35 +0000 From: Christoph Hellwig To: Konrad Rzeszutek Wilk Subject: [PATCH 4/7] powerpc/pseries: simplify svm_swiotlb_init Date: Thu, 22 Apr 2021 09:19:18 +0200 Message-Id: <20210422071921.1428607-5-hch@lst.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210422071921.1428607-1-hch@lst.de> References: <20210422071921.1428607-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Tom Lendacky , Thomas Bogendoerfer , linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org, Stefano Stabellini , xen-devel@lists.xenproject.org, Boris Ostrovsky , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The value returned by swiotlb_size_or_default is always properly aligned now, so don't duplicate the work. Signed-off-by: Christoph Hellwig dddd --- arch/powerpc/platforms/pseries/svm.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/platforms/pseries/svm.c b/arch/powerpc/platforms/pseries/svm.c index 4d281ff56ce96f..9187d2a1ed568d 100644 --- a/arch/powerpc/platforms/pseries/svm.c +++ b/arch/powerpc/platforms/pseries/svm.c @@ -43,20 +43,14 @@ machine_early_initcall(pseries, init_svm); */ void __init svm_swiotlb_init(void) { + unsigned long bytes = swiotlb_size_or_default(); unsigned char *vstart; - unsigned long bytes, io_tlb_nslabs; - - io_tlb_nslabs = (swiotlb_size_or_default() >> IO_TLB_SHIFT); - io_tlb_nslabs = ALIGN(io_tlb_nslabs, IO_TLB_SEGSIZE); - - bytes = io_tlb_nslabs << IO_TLB_SHIFT; vstart = memblock_alloc(PAGE_ALIGN(bytes), PAGE_SIZE); if (vstart && !swiotlb_init_with_tbl(vstart, bytes, false)) return; - memblock_free_early(__pa(vstart), - PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT)); + memblock_free_early(__pa(vstart), PAGE_ALIGN(bytes)); panic("SVM: Cannot allocate SWIOTLB buffer"); } -- 2.30.1