From patchwork Thu Jun 8 13:25:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9774721 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 75D4760393 for ; Thu, 8 Jun 2017 13:27:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 670C328451 for ; Thu, 8 Jun 2017 13:27:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5BB0728520; Thu, 8 Jun 2017 13:27:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0824828451 for ; Thu, 8 Jun 2017 13:27:14 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=rqbDK+L4WCeDnlx034DZOGqDJSaShK9nYcU2WanjXTg=; b=TnDeJbG3v/PX5STj60TRSbdtaT d6ZhigpUTNoimsVYdjEbWYRUaKAOu9rFgGd+ukBwE8Jmqm1nBJA02VoTiF076K+5iMp15W8XzL0aj xujvcf/xp6CqG51R0ZWFJs2/r6eYl3WazXoHrxFN9pBT9bXlluUa+5Td/leaR7FWoVCpXAIglY1r1 gH6gL2kuKEKsAE4ORJMCFm6l1E24QwPRvSNMdhj6TnBpbPOV4vZgrmhdr7sAJ4A2RhrX9qoB02vhJ fqxGrBD43JKT+PcFIDVdtqK4sFWeYXiwVBt59rEcUWW+IkyRt1NtJ66Y63FkMQWmF6IXw/den3shv 2Jc5HmHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dIxSz-00063f-TW; Thu, 08 Jun 2017 13:27:13 +0000 Received: from clnet-p099-196.ikbnet.co.at ([83.175.99.196] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1dIxSO-00059Q-6V; Thu, 08 Jun 2017 13:26:36 +0000 From: Christoph Hellwig To: x86@kernel.org, linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH 05/44] drm/armada: don't abuse DMA_ERROR_CODE Date: Thu, 8 Jun 2017 15:25:30 +0200 Message-Id: <20170608132609.32662-6-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170608132609.32662-1-hch@lst.de> References: <20170608132609.32662-1-hch@lst.de> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP dev_addr isn't even a dma_addr_t, and DMA_ERROR_CODE has never been a valid driver API. Add a bool mapped flag instead. Signed-off-by: Christoph Hellwig --- drivers/gpu/drm/armada/armada_fb.c | 2 +- drivers/gpu/drm/armada/armada_gem.c | 5 ++--- drivers/gpu/drm/armada/armada_gem.h | 1 + 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/armada/armada_fb.c b/drivers/gpu/drm/armada/armada_fb.c index 2a7eb6817c36..92e6b08ea64a 100644 --- a/drivers/gpu/drm/armada/armada_fb.c +++ b/drivers/gpu/drm/armada/armada_fb.c @@ -133,7 +133,7 @@ static struct drm_framebuffer *armada_fb_create(struct drm_device *dev, } /* Framebuffer objects must have a valid device address for scanout */ - if (obj->dev_addr == DMA_ERROR_CODE) { + if (!obj->mapped) { ret = -EINVAL; goto err_unref; } diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c index d6c2a5d190eb..a76ca21d063b 100644 --- a/drivers/gpu/drm/armada/armada_gem.c +++ b/drivers/gpu/drm/armada/armada_gem.c @@ -175,6 +175,7 @@ armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj) obj->phys_addr = obj->linear->start; obj->dev_addr = obj->linear->start; + obj->mapped = true; } DRM_DEBUG_DRIVER("obj %p phys %#llx dev %#llx\n", obj, @@ -205,7 +206,6 @@ armada_gem_alloc_private_object(struct drm_device *dev, size_t size) return NULL; drm_gem_private_object_init(dev, &obj->obj, size); - obj->dev_addr = DMA_ERROR_CODE; DRM_DEBUG_DRIVER("alloc private obj %p size %zu\n", obj, size); @@ -229,8 +229,6 @@ static struct armada_gem_object *armada_gem_alloc_object(struct drm_device *dev, return NULL; } - obj->dev_addr = DMA_ERROR_CODE; - mapping = obj->obj.filp->f_mapping; mapping_set_gfp_mask(mapping, GFP_HIGHUSER | __GFP_RECLAIMABLE); @@ -610,5 +608,6 @@ int armada_gem_map_import(struct armada_gem_object *dobj) return -EINVAL; } dobj->dev_addr = sg_dma_address(dobj->sgt->sgl); + dobj->mapped = true; return 0; } diff --git a/drivers/gpu/drm/armada/armada_gem.h b/drivers/gpu/drm/armada/armada_gem.h index b88d2b9853c7..6e524e0676bb 100644 --- a/drivers/gpu/drm/armada/armada_gem.h +++ b/drivers/gpu/drm/armada/armada_gem.h @@ -16,6 +16,7 @@ struct armada_gem_object { void *addr; phys_addr_t phys_addr; resource_size_t dev_addr; + bool mapped; struct drm_mm_node *linear; /* for linear backed */ struct page *page; /* for page backed */ struct sg_table *sgt; /* for imported */