From patchwork Tue Jan 13 11:52:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michel Thierry X-Patchwork-Id: 5619531 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 21AB2C058E for ; Tue, 13 Jan 2015 11:52:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4A703204FB for ; Tue, 13 Jan 2015 11:52:21 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 29BA6205F7 for ; Tue, 13 Jan 2015 11:52:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 26CDC6E586; Tue, 13 Jan 2015 03:52:19 -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 8A8146E450 for ; Tue, 13 Jan 2015 03:52:17 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 13 Jan 2015 03:52:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,749,1413270000"; d="scan'208";a="661059943" Received: from michelth-linux.isw.intel.com ([10.102.226.150]) by fmsmga002.fm.intel.com with ESMTP; 13 Jan 2015 03:52:16 -0800 From: Michel Thierry To: intel-gfx@lists.freedesktop.org Date: Tue, 13 Jan 2015 11:52:16 +0000 Message-Id: <1421149959-30383-3-git-send-email-michel.thierry@intel.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1421149959-30383-1-git-send-email-michel.thierry@intel.com> References: <1418922621-25818-1-git-send-email-michel.thierry@intel.com> <1421149959-30383-1-git-send-email-michel.thierry@intel.com> Subject: [Intel-gfx] [PATCH v3 02/25] drm/i915: Rename to GEN8_LEGACY_PDPES 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 In gen8, 32b PPGTT has always had one "pdp" (it doesn't actually have one, but it resembles having one). The #define was confusing as is, and using "PDPE" is a much better description. sed -i 's/GEN8_LEGACY_PDPS/GEN8_LEGACY_PDPES/' drivers/gpu/drm/i915/*.[ch] It also matches the x86 pagetable terminology: PTE = Page Table Entry - pagetable level 1 page PDE = Page Directory Entry - pagetable level 2 page PDPE = Page Directory Pointer Entry - pagetable level 3 page And in the near future (for 48b addressing): PML4E = Page Map Level 4 Entry v2: Expanded information about Page Directory/Table nomenclature. Cc: Daniel Vetter CC: Dave Gordon Signed-off-by: Ben Widawsky Signed-off-by: Michel Thierry (v2) --- drivers/gpu/drm/i915/i915_gem_gtt.c | 6 +++--- drivers/gpu/drm/i915/i915_gem_gtt.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 746f77f..58d54bd 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -375,7 +375,7 @@ static void gen8_ppgtt_insert_entries(struct i915_address_space *vm, pt_vaddr = NULL; for_each_sg_page(pages->sgl, &sg_iter, pages->nents, 0) { - if (WARN_ON(pdpe >= GEN8_LEGACY_PDPS)) + if (WARN_ON(pdpe >= GEN8_LEGACY_PDPES)) break; if (pt_vaddr == NULL) @@ -486,7 +486,7 @@ bail: static int gen8_ppgtt_allocate_page_tables(struct i915_hw_ppgtt *ppgtt, const int max_pdp) { - struct page **pt_pages[GEN8_LEGACY_PDPS]; + struct page **pt_pages[GEN8_LEGACY_PDPES]; int i, ret; for (i = 0; i < max_pdp; i++) { @@ -537,7 +537,7 @@ static int gen8_ppgtt_allocate_page_directories(struct i915_hw_ppgtt *ppgtt, return -ENOMEM; ppgtt->num_pd_pages = 1 << get_order(max_pdp << PAGE_SHIFT); - BUG_ON(ppgtt->num_pd_pages > GEN8_LEGACY_PDPS); + BUG_ON(ppgtt->num_pd_pages > GEN8_LEGACY_PDPES); return 0; } diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index e377c7d..9d998ec 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -88,7 +88,7 @@ typedef gen8_gtt_pte_t gen8_ppgtt_pde_t; #define GEN8_PDE_MASK 0x1ff #define GEN8_PTE_SHIFT 12 #define GEN8_PTE_MASK 0x1ff -#define GEN8_LEGACY_PDPS 4 +#define GEN8_LEGACY_PDPES 4 #define GEN8_PTES_PER_PAGE (PAGE_SIZE / sizeof(gen8_gtt_pte_t)) #define GEN8_PDES_PER_PAGE (PAGE_SIZE / sizeof(gen8_ppgtt_pde_t)) @@ -273,12 +273,12 @@ struct i915_hw_ppgtt { unsigned num_pd_pages; /* gen8+ */ union { struct page **pt_pages; - struct page **gen8_pt_pages[GEN8_LEGACY_PDPS]; + struct page **gen8_pt_pages[GEN8_LEGACY_PDPES]; }; struct page *pd_pages; union { uint32_t pd_offset; - dma_addr_t pd_dma_addr[GEN8_LEGACY_PDPS]; + dma_addr_t pd_dma_addr[GEN8_LEGACY_PDPES]; }; union { dma_addr_t *pt_dma_addr;