From patchwork Wed Feb 12 22:28:44 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 3641311 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4CC1CBF13A for ; Wed, 12 Feb 2014 22:29:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7F28E20142 for ; Wed, 12 Feb 2014 22:29:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 9790820131 for ; Wed, 12 Feb 2014 22:29:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9CCA1FB065; Wed, 12 Feb 2014 14:29:01 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id ADC8EFB065 for ; Wed, 12 Feb 2014 14:28:55 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 12 Feb 2014 14:24:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,834,1384329600"; d="scan'208";a="482466163" Received: from ironside.jf.intel.com ([10.7.197.224]) by orsmga002.jf.intel.com with ESMTP; 12 Feb 2014 14:28:54 -0800 From: Ben Widawsky To: Intel GFX Date: Wed, 12 Feb 2014 14:28:44 -0800 Message-Id: <1392244132-6806-2-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 1.8.5.4 In-Reply-To: <1392244132-6806-1-git-send-email-benjamin.widawsky@intel.com> References: <1392244132-6806-1-git-send-email-benjamin.widawsky@intel.com> Cc: Ben Widawsky , Ben Widawsky Subject: [Intel-gfx] [PATCH 1/9] drm/i915/bdw: Split up PPGTT cleanup X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This will make the code more readable, and extensible which is needed for upcoming feature work. Eventually, we'll do the same for init. Signed-off-by: Ben Widawsky Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/i915_gem_gtt.c | 59 ++++++++++++++++++++++++------------- 1 file changed, 38 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 6e858e1..ee38faf 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -319,36 +319,53 @@ static void gen8_ppgtt_insert_entries(struct i915_address_space *vm, kunmap_atomic(pt_vaddr); } -static void gen8_ppgtt_cleanup(struct i915_address_space *vm) +static void gen8_ppgtt_free(struct i915_hw_ppgtt *ppgtt) +{ + int i; + + for (i = 0; i < ppgtt->num_pd_pages ; i++) + kfree(ppgtt->gen8_pt_dma_addr[i]); + + __free_pages(ppgtt->gen8_pt_pages, get_order(ppgtt->num_pt_pages << PAGE_SHIFT)); + __free_pages(ppgtt->pd_pages, get_order(ppgtt->num_pd_pages << PAGE_SHIFT)); +} + +static void gen8_ppgtt_unmap_pages(struct i915_hw_ppgtt *ppgtt) { - struct i915_hw_ppgtt *ppgtt = - container_of(vm, struct i915_hw_ppgtt, base); int i, j; - list_del(&vm->global_link); - drm_mm_takedown(&vm->mm); + for (i = 0; i < ppgtt->num_pd_pages; i++) { + /* TODO: In the future we'll support sparse mappings, so this + * will have to change. */ + if (!ppgtt->pd_dma_addr[i]) + continue; - for (i = 0; i < ppgtt->num_pd_pages ; i++) { - if (ppgtt->pd_dma_addr[i]) { - pci_unmap_page(ppgtt->base.dev->pdev, - ppgtt->pd_dma_addr[i], - PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); + pci_unmap_page(ppgtt->base.dev->pdev, + ppgtt->pd_dma_addr[i], + PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - for (j = 0; j < GEN8_PDES_PER_PAGE; j++) { - dma_addr_t addr = ppgtt->gen8_pt_dma_addr[i][j]; - if (addr) - pci_unmap_page(ppgtt->base.dev->pdev, - addr, - PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL); + for (j = 0; j < GEN8_PDES_PER_PAGE; j++) { + dma_addr_t addr = ppgtt->gen8_pt_dma_addr[i][j]; + if (addr) + pci_unmap_page(ppgtt->base.dev->pdev, + addr, + PAGE_SIZE, + PCI_DMA_BIDIRECTIONAL); - } } - kfree(ppgtt->gen8_pt_dma_addr[i]); } +} - __free_pages(ppgtt->gen8_pt_pages, get_order(ppgtt->num_pt_pages << PAGE_SHIFT)); - __free_pages(ppgtt->pd_pages, get_order(ppgtt->num_pd_pages << PAGE_SHIFT)); +static void gen8_ppgtt_cleanup(struct i915_address_space *vm) +{ + struct i915_hw_ppgtt *ppgtt = + container_of(vm, struct i915_hw_ppgtt, base); + + list_del(&vm->global_link); + drm_mm_takedown(&vm->mm); + + gen8_ppgtt_unmap_pages(ppgtt); + gen8_ppgtt_free(ppgtt); } /**