From patchwork Thu Apr 13 22:05:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 9680239 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 9B58B60381 for ; Thu, 13 Apr 2017 22:11:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8D8C8285F4 for ; Thu, 13 Apr 2017 22:11:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 819E42864C; Thu, 13 Apr 2017 22:11:44 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1D6BE285F4 for ; Thu, 13 Apr 2017 22:11:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755910AbdDMWLm (ORCPT ); Thu, 13 Apr 2017 18:11:42 -0400 Received: from ale.deltatee.com ([207.54.116.67]:38247 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753940AbdDMWGj (ORCPT ); Thu, 13 Apr 2017 18:06:39 -0400 Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1cymsH-0003tb-G6; Thu, 13 Apr 2017 16:06:13 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.84_2) (envelope-from ) id 1cymsG-0001Ay-4x; Thu, 13 Apr 2017 16:05:56 -0600 From: Logan Gunthorpe To: Christoph Hellwig , "Martin K. Petersen" , Sagi Grimberg , Jens Axboe , Tejun Heo , Greg Kroah-Hartman , Dan Williams , Ross Zwisler , Matthew Wilcox , Sumit Semwal , Ming Lin , linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, intel-gfx@lists.freedesktop.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-nvme@lists.infradead.org, linux-nvdimm@lists.01.org, linux-scsi@vger.kernel.org, fcoe-devel@open-fcoe.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, sparmaintainer@unisys.com, devel@driverdev.osuosl.org, target-devel@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, rds-devel@oss.oracle.com Cc: Steve Wise , Stephen Bates , Logan Gunthorpe Date: Thu, 13 Apr 2017 16:05:18 -0600 Message-Id: <1492121135-4437-6-git-send-email-logang@deltatee.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1492121135-4437-1-git-send-email-logang@deltatee.com> References: <1492121135-4437-1-git-send-email-logang@deltatee.com> X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: hch@lst.de, martin.petersen@oracle.com, sagi@grimberg.me, axboe@kernel.dk, tj@kernel.org, gregkh@linuxfoundation.org, dan.j.williams@intel.com, ross.zwisler@linux.intel.com, mawilcox@microsoft.com, sumit.semwal@linaro.org, ming.l@ssi.samsung.com, linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-nvme@lists.infradead.org, linux-nvdimm@lists.01.org, fcoe-devel@open-fcoe.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, sparmaintainer@unisys.com, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-media@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, rds-devel@oss.oracle.com, swise@opengridcomputing.com, sbates@raithlin.com, logang@deltatee.com X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH 05/22] drm/i915: Make use of the new sg_map helper function X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: target-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This is a single straightforward conversion from kmap to sg_map. Signed-off-by: Logan Gunthorpe Acked-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 67b1fc5..1b1b91a 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2188,6 +2188,15 @@ static void __i915_gem_object_reset_page_iter(struct drm_i915_gem_object *obj) radix_tree_delete(&obj->mm.get_page.radix, iter.index); } +static void i915_gem_object_unmap(const struct drm_i915_gem_object *obj, + void *ptr) +{ + if (is_vmalloc_addr(ptr)) + vunmap(ptr); + else + sg_unmap(obj->mm.pages->sgl, ptr, SG_KMAP); +} + void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj, enum i915_mm_subclass subclass) { @@ -2215,10 +2224,7 @@ void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj, void *ptr; ptr = ptr_mask_bits(obj->mm.mapping); - if (is_vmalloc_addr(ptr)) - vunmap(ptr); - else - kunmap(kmap_to_page(ptr)); + i915_gem_object_unmap(obj, ptr); obj->mm.mapping = NULL; } @@ -2475,8 +2481,11 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj, void *addr; /* A single page can always be kmapped */ - if (n_pages == 1 && type == I915_MAP_WB) - return kmap(sg_page(sgt->sgl)); + if (n_pages == 1 && type == I915_MAP_WB) { + addr = sg_map(sgt->sgl, SG_KMAP); + if (IS_ERR(addr)) + return NULL; + } if (n_pages > ARRAY_SIZE(stack_pages)) { /* Too big for stack -- allocate temporary array instead */ @@ -2543,11 +2552,7 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj, goto err_unpin; } - if (is_vmalloc_addr(ptr)) - vunmap(ptr); - else - kunmap(kmap_to_page(ptr)); - + i915_gem_object_unmap(obj, ptr); ptr = obj->mm.mapping = NULL; }