From patchwork Thu Apr 22 07:19:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12217791 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 423C6C43462 for ; Thu, 22 Apr 2021 07:19:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B48D6145C for ; Thu, 22 Apr 2021 07:19:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234986AbhDVHUV (ORCPT ); Thu, 22 Apr 2021 03:20:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234969AbhDVHUU (ORCPT ); Thu, 22 Apr 2021 03:20:20 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6BFFC06138E for ; Thu, 22 Apr 2021 00:19:45 -0700 (PDT) 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=xD8ROuypRPJNh1m/ueF1N/0zbojT8vOodof5U8gwwPw=; b=hl0mLAPtI4EUUTxHX9rKGAwXEe oymWWAiTedNj4Ts234A61u45CuUHmD7rWNj3wG+PoV/7AYwMnLUP2uFHT2aAwoE7YvYPxjrbRDmHx r2JtfJC0WOShuUl81WCs1Y7d6eYIczxE5z8zT2V3NyEX9qwU4tEEbArvXb5X+QGbZjOu3xc8AHXWJ wZ9YNoqEWYD2Bhdffx+5mRsV6gNmsqZm/TmyxKfCZtA0zBIgQT6B7C54T5t31g365WE2u8rBllDOT KibaOsAYfbEmn7HqDwTN2geflsIvhw6FBUXjrPzT6SjsT7cOwIv0uW39tQ9rBtgIKvCdbiJb2SY61 zOiYWgug==; 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 1lZTcf-00DRlY-M8; Thu, 22 Apr 2021 07:19:38 +0000 From: Christoph Hellwig To: Konrad Rzeszutek Wilk Cc: Tom Lendacky , Thomas Bogendoerfer , Michael Ellerman , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, xen-devel@lists.xenproject.org, iommu@lists.linux-foundation.org Subject: [PATCH 5/7] MIPS/octeon: simplify swiotlb initialization Date: Thu, 22 Apr 2021 09:19:19 +0200 Message-Id: <20210422071921.1428607-6-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 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Just use swiotlb_adjust_size and swiotlb_init to initialize swiotlb instead of doing a lot of manual work. Signed-off-by: Christoph Hellwig --- arch/mips/cavium-octeon/dma-octeon.c | 16 ++-------------- arch/mips/include/asm/octeon/pci-octeon.h | 1 - arch/mips/pci/pci-octeon.c | 2 +- 3 files changed, 3 insertions(+), 16 deletions(-) diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c index 020b8ce5b8ff7c..6bc9ef5e3790ec 100644 --- a/arch/mips/cavium-octeon/dma-octeon.c +++ b/arch/mips/cavium-octeon/dma-octeon.c @@ -186,15 +186,12 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) return daddr; } -char *octeon_swiotlb; - void __init plat_swiotlb_setup(void) { phys_addr_t start, end; phys_addr_t max_addr; phys_addr_t addr_size; size_t swiotlbsize; - unsigned long swiotlb_nslabs; u64 i; max_addr = 0; @@ -236,15 +233,6 @@ void __init plat_swiotlb_setup(void) if (OCTEON_IS_OCTEON2() && max_addr >= 0x100000000ul) swiotlbsize = 64 * (1<<20); #endif - swiotlb_nslabs = swiotlbsize >> IO_TLB_SHIFT; - swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE); - swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT; - - octeon_swiotlb = memblock_alloc_low(swiotlbsize, PAGE_SIZE); - if (!octeon_swiotlb) - panic("%s: Failed to allocate %zu bytes align=%lx\n", - __func__, swiotlbsize, PAGE_SIZE); - - if (swiotlb_init_with_tbl(octeon_swiotlb, swiotlbsize, 1) == -ENOMEM) - panic("Cannot allocate SWIOTLB buffer"); + swiotlb_adjust_size(swiotlbsize); + swiotlb_init(false); } diff --git a/arch/mips/include/asm/octeon/pci-octeon.h b/arch/mips/include/asm/octeon/pci-octeon.h index b12d9a3fbfb6c0..a2f20a44fb6143 100644 --- a/arch/mips/include/asm/octeon/pci-octeon.h +++ b/arch/mips/include/asm/octeon/pci-octeon.h @@ -64,6 +64,5 @@ enum octeon_dma_bar_type { extern enum octeon_dma_bar_type octeon_dma_bar_type; void octeon_pci_dma_init(void); -extern char *octeon_swiotlb; #endif diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c index fc29b85cfa926d..ff26cd9dc083f6 100644 --- a/arch/mips/pci/pci-octeon.c +++ b/arch/mips/pci/pci-octeon.c @@ -664,7 +664,7 @@ static int __init octeon_pci_setup(void) /* BAR1 movable regions contiguous to cover the swiotlb */ octeon_bar1_pci_phys = - virt_to_phys(octeon_swiotlb) & ~((1ull << 22) - 1); + io_tlb_default_mem->start & ~((1ull << 22) - 1); for (index = 0; index < 32; index++) { union cvmx_pci_bar1_indexx bar1_index;