From patchwork Tue Feb 24 16:22:45 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michel Thierry X-Patchwork-Id: 5873741 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0383CBF6C3 for ; Tue, 24 Feb 2015 16:23:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2F42E20221 for ; Tue, 24 Feb 2015 16:23:39 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 23EE820154 for ; Tue, 24 Feb 2015 16:23:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4794E6E57E; Tue, 24 Feb 2015 08:23:33 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id C587E6E552 for ; Tue, 24 Feb 2015 08:23:31 -0800 (PST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP; 24 Feb 2015 08:23:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,639,1418112000"; d="scan'208";a="532140641" Received: from michelth-linux.isw.intel.com ([10.102.226.150]) by orsmga003.jf.intel.com with ESMTP; 24 Feb 2015 08:14:14 -0800 From: Michel Thierry To: intel-gfx@lists.freedesktop.org Date: Tue, 24 Feb 2015 16:22:45 +0000 Message-Id: <1424794985-14441-13-git-send-email-michel.thierry@intel.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1424794985-14441-1-git-send-email-michel.thierry@intel.com> References: <1418922621-25818-1-git-send-email-michel.thierry@intel.com> <1424794985-14441-1-git-send-email-michel.thierry@intel.com> Subject: [Intel-gfx] [PATCH v6 12/32] drm/i915/bdw: page directories rework allocation X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_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 From: Ben Widawsky Start using gen8_for_each_pdpe macro to allocate the page directories. v2: Rebased after s/free_pt_*/unmap_and_free_pt/ change. v3: Rebased after teardown va range logic was removed. Signed-off-by: Ben Widawsky Signed-off-by: Michel Thierry (v2+) --- drivers/gpu/drm/i915/i915_gem_gtt.c | 43 ++++++++++++++++++++++++++----------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index e03b2c8..ade8edd 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -681,25 +681,39 @@ unwind_out: return -ENOMEM; } -static int gen8_ppgtt_allocate_page_directories(struct i915_hw_ppgtt *ppgtt, - const int max_pdp) +static int gen8_ppgtt_alloc_page_directories(struct i915_page_directory_pointer_entry *pdp, + uint64_t start, + uint64_t length) { - int i; - - for (i = 0; i < max_pdp; i++) { - ppgtt->pdp.page_directory[i] = alloc_pd_single(); - if (IS_ERR(ppgtt->pdp.page_directory[i])) + struct i915_hw_ppgtt *ppgtt = + container_of(pdp, struct i915_hw_ppgtt, pdp); + struct i915_page_directory_entry *unused; + uint64_t temp; + uint32_t pdpe; + + /* FIXME: PPGTT container_of won't work for 64b */ + BUG_ON((start + length) > 0x800000000ULL); + + gen8_for_each_pdpe(unused, pdp, start, length, temp, pdpe) { + BUG_ON(unused); + pdp->page_directory[pdpe] = alloc_pd_single(); + if (IS_ERR(ppgtt->pdp.page_directory[pdpe])) goto unwind_out; + + ppgtt->num_pd_pages++; } - ppgtt->num_pd_pages = max_pdp; BUG_ON(ppgtt->num_pd_pages > GEN8_LEGACY_PDPES); return 0; unwind_out: - while (i--) - unmap_and_free_pd(ppgtt->pdp.page_directory[i]); + while (pdpe--) { + unmap_and_free_pd(ppgtt->pdp.page_directory[pdpe]); + ppgtt->num_pd_pages--; + } + + WARN_ON(ppgtt->num_pd_pages); return -ENOMEM; } @@ -709,7 +723,8 @@ static int gen8_ppgtt_alloc(struct i915_hw_ppgtt *ppgtt, { int ret; - ret = gen8_ppgtt_allocate_page_directories(ppgtt, max_pdp); + ret = gen8_ppgtt_alloc_page_directories(&ppgtt->pdp, ppgtt->base.start, + ppgtt->base.total); if (ret) return ret; @@ -785,6 +800,10 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size) if (size % (1<<30)) DRM_INFO("Pages will be wasted unless GTT size (%llu) is divisible by 1GB\n", size); + ppgtt->base.start = 0; + ppgtt->base.total = size; + BUG_ON(ppgtt->base.total == 0); + /* 1. Do all our allocations for page directories and page tables. */ ret = gen8_ppgtt_alloc(ppgtt, max_pdp); if (ret) @@ -832,8 +851,6 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size) ppgtt->base.clear_range = gen8_ppgtt_clear_range; ppgtt->base.insert_entries = gen8_ppgtt_insert_entries; ppgtt->base.cleanup = gen8_ppgtt_cleanup; - ppgtt->base.start = 0; - ppgtt->base.total = ppgtt->num_pd_entries * GEN8_PTES_PER_PAGE * PAGE_SIZE; ppgtt->base.clear_range(&ppgtt->base, 0, ppgtt->base.total, true);