From patchwork Mon Mar 14 07:31:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12779673 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A458AC433EF for ; Mon, 14 Mar 2022 07:36:40 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.289971.491788 (Exim 4.92) (envelope-from ) id 1nTfFn-0003fD-JG; Mon, 14 Mar 2022 07:36:31 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 289971.491788; Mon, 14 Mar 2022 07:36:31 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nTfFn-0003ei-EJ; Mon, 14 Mar 2022 07:36:31 +0000 Received: by outflank-mailman (input) for mailman id 289971; Mon, 14 Mar 2022 07:36:30 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nTfBp-00056d-SL for xen-devel@lists.xenproject.org; Mon, 14 Mar 2022 07:32:25 +0000 Received: from bombadil.infradead.org (bombadil.infradead.org [2607:7c80:54:e::133]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id e40776c1-a368-11ec-8eba-a37418f5ba1a; Mon, 14 Mar 2022 08:32:25 +0100 (CET) Received: from [46.140.54.162] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nTfBX-0044nI-NE; Mon, 14 Mar 2022 07:32:08 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: e40776c1-a368-11ec-8eba-a37418f5ba1a 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=z/er+v+IsLn/3DGDcWTENkiYhlg652Y98Hj6qBpRkNM=; b=T6Y3N/uUE3h/14YStboRzoVFc/ 9GfPPPiQd9PwYJqMRTOm0smey062UGJjZdeQZ9x0qWOemaH54g1ClNwdlxvpRhwgYnXiW5KIAxr/K 0ViIWjUq2r0uqQwCJOnDObCWM2sgMkrRm+yHUkWtw73Q3liFGhUVwItXaqZymyO6/dwPOeEuZGgic vt7rZvwQsgvigoSxECM40cJSIH9vvMz5ucLySpLwPPc8PaMJsrw6tdkHiuxSJZFXbg98u8YA2zmsH 4lidVtIkikm+amhl35GxiJRKhzpKdfqaC0KZ0xADQbJRGXRScG3/pvHuAePMU0dudcrXIJ0h7PCMq JLagJkvA==; From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: x86@kernel.org, Anshuman Khandual , Tom Lendacky , Konrad Rzeszutek Wilk , Stefano Stabellini , Boris Ostrovsky , Juergen Gross , Joerg Roedel , David Woodhouse , Lu Baolu , Robin Murphy , linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-hyperv@vger.kernel.org, tboot-devel@lists.sourceforge.net, linux-pci@vger.kernel.org Subject: [PATCH 11/15] swiotlb: pass a gfp_mask argument to swiotlb_init_late Date: Mon, 14 Mar 2022 08:31:25 +0100 Message-Id: <20220314073129.1862284-12-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220314073129.1862284-1-hch@lst.de> References: <20220314073129.1862284-1-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 Let the caller chose a zone to allocate from. This will be used later on by the xen-swiotlb initialization on arm. Signed-off-by: Christoph Hellwig Reviewed-by: Anshuman Khandual --- arch/x86/pci/sta2x11-fixup.c | 2 +- include/linux/swiotlb.h | 2 +- kernel/dma/swiotlb.c | 7 ++----- 3 files changed, 4 insertions(+), 7 deletions(-) diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c index e0c039a75b2db..c7e6faf59a861 100644 --- a/arch/x86/pci/sta2x11-fixup.c +++ b/arch/x86/pci/sta2x11-fixup.c @@ -57,7 +57,7 @@ static void sta2x11_new_instance(struct pci_dev *pdev) int size = STA2X11_SWIOTLB_SIZE; /* First instance: register your own swiotlb area */ dev_info(&pdev->dev, "Using SWIOTLB (size %i)\n", size); - if (swiotlb_init_late(size)) + if (swiotlb_init_late(size, GFP_DMA)) dev_emerg(&pdev->dev, "init swiotlb failed\n"); } list_add(&instance->list, &sta2x11_instance_list); diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index eabdd89987027..ee655f2e4d28b 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -37,7 +37,7 @@ struct scatterlist; int swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, unsigned int flags); unsigned long swiotlb_size_or_default(void); extern int swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs); -int swiotlb_init_late(size_t size); +int swiotlb_init_late(size_t size, gfp_t gfp_mask); extern void __init swiotlb_update_mem_attributes(void); phys_addr_t swiotlb_tbl_map_single(struct device *hwdev, phys_addr_t phys, diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 2ad12562c94fe..79641c446d284 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -292,7 +292,7 @@ void __init swiotlb_init(bool addressing_limit, unsigned int flags) * initialize the swiotlb later using the slab allocator if needed. * This should be just like above, but with some error catching. */ -int swiotlb_init_late(size_t size) +int swiotlb_init_late(size_t size, gfp_t gfp_mask) { unsigned long nslabs = ALIGN(size >> IO_TLB_SHIFT, IO_TLB_SEGSIZE); unsigned long bytes; @@ -303,15 +303,12 @@ int swiotlb_init_late(size_t size) if (swiotlb_force_disable) return 0; - /* - * Get IO TLB memory from the low pages - */ order = get_order(nslabs << IO_TLB_SHIFT); nslabs = SLABS_PER_PAGE << order; bytes = nslabs << IO_TLB_SHIFT; while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { - vstart = (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, + vstart = (void *)__get_free_pages(gfp_mask | __GFP_NOWARN, order); if (vstart) break;