From patchwork Mon May 10 09:50:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claire Chang X-Patchwork-Id: 12247409 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 E7F49C43600 for ; Mon, 10 May 2021 09:51:50 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8956E6108B for ; Mon, 10 May 2021 09:51:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8956E6108B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.125070.235486 (Exim 4.92) (envelope-from ) id 1lg2Zj-0001eK-6a; Mon, 10 May 2021 09:51:43 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 125070.235486; Mon, 10 May 2021 09:51:43 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lg2Zj-0001e8-2m; Mon, 10 May 2021 09:51:43 +0000 Received: by outflank-mailman (input) for mailman id 125070; Mon, 10 May 2021 09:51:42 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lg2Zh-0001bJ-Uo for xen-devel@lists.xenproject.org; Mon, 10 May 2021 09:51:41 +0000 Received: from mail-pf1-x42c.google.com (unknown [2607:f8b0:4864:20::42c]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 6740ae25-12c4-410f-93bc-71fb9f834bd8; Mon, 10 May 2021 09:51:41 +0000 (UTC) Received: by mail-pf1-x42c.google.com with SMTP id p4so13283421pfo.3 for ; Mon, 10 May 2021 02:51:41 -0700 (PDT) Received: from localhost ([2401:fa00:95:205:a524:abe8:94e3:5601]) by smtp.gmail.com with UTF8SMTPSA id z16sm18516572pjq.42.2021.05.10.02.51.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 May 2021 02:51:40 -0700 (PDT) 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: 6740ae25-12c4-410f-93bc-71fb9f834bd8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=+JmVmhSFGiDk3/OglOY5X9UAspXEPeRZrOOQ1jue7o0=; b=chdPcJe7gomL+7ILnJK41quCdTSfmmzVjcLxZvr96abVbyS2hxQz55JkSmjVpMuD2l 7hrZDyiec0Eptx6DlOgctch3MP18AQl2Z0UBjvJYxcIDfchdSPR9HSnruN0+XHwsK91U nLMYdSbyGfntFvFyhHjVYHf29JB1JZpxW2+jI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=+JmVmhSFGiDk3/OglOY5X9UAspXEPeRZrOOQ1jue7o0=; b=WC1STTRg1JByTE0x6z5/kSHureXLSeCUduO2ZpqCUB7/AlyegA1r7ZMe7U67eQEDfJ OIff2lZHW7s7brarGOC++pYNUIY5Rkp6gmXwXt0k2FIIEtYIWqSYae94jV0bum36Yd1E QEDig+8PyDmfYxzesHxMq2c8KqdlU9O9kQkZfcrw6RNYBoEh1BH8l6mOiCZWCi6Gg3Ne npt0J9sAuhsRlrY9n689Ea0XK7pS7JZqVHkSfalNJxGr0umlVR7NfA02XTmUpglyrRhF B5I+kuVsh0JmHD3QTW2RgEpBcGBTNGSu6JQ0BeLnqQeaP8lXOWeK9O6ZF1zf38bYcwgB ypRQ== X-Gm-Message-State: AOAM533t5hduGfJL2cF29dZIAiDAKPivLp1ioq4BH4I+Ki02BY0VXzla Fv3W7QEEAxFu5VyaPmO/C5Rqbg== X-Google-Smtp-Source: ABdhPJwEuklfL8gjazzjb7wDgipUUvm7epPmX8yFSlIdzWj0uWm4MepZyYy8A9RBNCckvPkGtYRV9Q== X-Received: by 2002:aa7:828f:0:b029:200:6e27:8c8f with SMTP id s15-20020aa7828f0000b02902006e278c8fmr24143255pfm.44.1620640300375; Mon, 10 May 2021 02:51:40 -0700 (PDT) From: Claire Chang To: Rob Herring , mpe@ellerman.id.au, Joerg Roedel , Will Deacon , Frank Rowand , Konrad Rzeszutek Wilk , boris.ostrovsky@oracle.com, jgross@suse.com, Christoph Hellwig , Marek Szyprowski Cc: benh@kernel.crashing.org, paulus@samba.org, "list@263.net:IOMMU DRIVERS" , sstabellini@kernel.org, Robin Murphy , grant.likely@arm.com, xypron.glpk@gmx.de, Thierry Reding , mingo@kernel.org, bauerman@linux.ibm.com, peterz@infradead.org, Greg KH , Saravana Kannan , "Rafael J . Wysocki" , heikki.krogerus@linux.intel.com, Andy Shevchenko , Randy Dunlap , Dan Williams , Bartosz Golaszewski , linux-devicetree , lkml , linuxppc-dev@lists.ozlabs.org, xen-devel@lists.xenproject.org, Nicolas Boichat , Jim Quinlan , tfiga@chromium.org, bskeggs@redhat.com, bhelgaas@google.com, chris@chris-wilson.co.uk, tientzu@chromium.org, daniel@ffwll.ch, airlied@linux.ie, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, jani.nikula@linux.intel.com, jxgao@google.com, joonas.lahtinen@linux.intel.com, linux-pci@vger.kernel.org, maarten.lankhorst@linux.intel.com, matthew.auld@intel.com, nouveau@lists.freedesktop.org, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com Subject: [PATCH v6 07/15] swiotlb: Update is_swiotlb_active to add a struct device argument Date: Mon, 10 May 2021 17:50:18 +0800 Message-Id: <20210510095026.3477496-8-tientzu@chromium.org> X-Mailer: git-send-email 2.31.1.607.g51e8a6a459-goog In-Reply-To: <20210510095026.3477496-1-tientzu@chromium.org> References: <20210510095026.3477496-1-tientzu@chromium.org> MIME-Version: 1.0 Update is_swiotlb_active to add a struct device argument. This will be useful later to allow for restricted DMA pool. Signed-off-by: Claire Chang --- drivers/gpu/drm/i915/gem/i915_gem_internal.c | 2 +- drivers/gpu/drm/nouveau/nouveau_ttm.c | 2 +- drivers/pci/xen-pcifront.c | 2 +- include/linux/swiotlb.h | 4 ++-- kernel/dma/direct.c | 2 +- kernel/dma/swiotlb.c | 4 ++-- 6 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_internal.c b/drivers/gpu/drm/i915/gem/i915_gem_internal.c index ce6b664b10aa..7d48c433446b 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_internal.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_internal.c @@ -42,7 +42,7 @@ static int i915_gem_object_get_pages_internal(struct drm_i915_gem_object *obj) max_order = MAX_ORDER; #ifdef CONFIG_SWIOTLB - if (is_swiotlb_active()) { + if (is_swiotlb_active(NULL)) { unsigned int max_segment; max_segment = swiotlb_max_segment(); diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index e8b506a6685b..2a2ae6d6cf6d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -321,7 +321,7 @@ nouveau_ttm_init(struct nouveau_drm *drm) } #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86) - need_swiotlb = is_swiotlb_active(); + need_swiotlb = is_swiotlb_active(NULL); #endif ret = ttm_device_init(&drm->ttm.bdev, &nouveau_bo_driver, drm->dev->dev, diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index b7a8f3a1921f..6d548ce53ce7 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -693,7 +693,7 @@ static int pcifront_connect_and_init_dma(struct pcifront_device *pdev) spin_unlock(&pcifront_dev_lock); - if (!err && !is_swiotlb_active()) { + if (!err && !is_swiotlb_active(NULL)) { err = pci_xen_swiotlb_init_late(); if (err) dev_err(&pdev->xdev->dev, "Could not setup SWIOTLB!\n"); diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 2a6cca07540b..c530c976d18b 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -123,7 +123,7 @@ static inline bool is_swiotlb_buffer(struct device *dev, phys_addr_t paddr) void __init swiotlb_exit(void); unsigned int swiotlb_max_segment(void); size_t swiotlb_max_mapping_size(struct device *dev); -bool is_swiotlb_active(void); +bool is_swiotlb_active(struct device *dev); void __init swiotlb_adjust_size(unsigned long size); #else #define swiotlb_force SWIOTLB_NO_FORCE @@ -143,7 +143,7 @@ static inline size_t swiotlb_max_mapping_size(struct device *dev) return SIZE_MAX; } -static inline bool is_swiotlb_active(void) +static inline bool is_swiotlb_active(struct device *dev) { return false; } diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 84c9feb5474a..7a88c34d0867 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -495,7 +495,7 @@ int dma_direct_supported(struct device *dev, u64 mask) size_t dma_direct_max_mapping_size(struct device *dev) { /* If SWIOTLB is active, use its maximum mapping size */ - if (is_swiotlb_active() && + if (is_swiotlb_active(dev) && (dma_addressing_limited(dev) || swiotlb_force == SWIOTLB_FORCE)) return swiotlb_max_mapping_size(dev); return SIZE_MAX; diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 4ea027b75013..81bed3d2c771 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -662,9 +662,9 @@ size_t swiotlb_max_mapping_size(struct device *dev) return ((size_t)IO_TLB_SIZE) * IO_TLB_SEGSIZE; } -bool is_swiotlb_active(void) +bool is_swiotlb_active(struct device *dev) { - return io_tlb_default_mem != NULL; + return get_io_tlb_mem(dev) != NULL; } EXPORT_SYMBOL_GPL(is_swiotlb_active);