From patchwork Fri Aug 15 11:46:02 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Andrej_Krut=C3=A1k?= X-Patchwork-Id: 4731111 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C31CF9F38C for ; Sun, 17 Aug 2014 11:38:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0A5DE20122 for ; Sun, 17 Aug 2014 11:38:49 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id AFEA520120 for ; Sun, 17 Aug 2014 11:38:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6AB786E3A4; Sun, 17 Aug 2014 04:38:40 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org X-Greylist: delayed 590 seconds by postgrey-1.34 at gabe; Fri, 15 Aug 2014 04:55:54 PDT Received: from mail.sysgo.com (mail.sysgo.com [176.9.53.133]) by gabe.freedesktop.org (Postfix) with ESMTP id 2CC8E6E7D3 for ; Fri, 15 Aug 2014 04:55:54 -0700 (PDT) From: Andrej Krutak To: dri-devel@lists.freedesktop.org Subject: [Patch] DRM support for addressing >32 bits on 32 bit cores (Radeon DRM driver+TTM) Date: Fri, 15 Aug 2014 13:46:02 +0200 Message-ID: <8588930.oNFIB51hOc@kru> MIME-Version: 1.0 X-Mailman-Approved-At: Sun, 17 Aug 2014 04:38:33 -0700 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 Hello, I was advised to send this stuff here ( https://bugs.freedesktop.org/show_bug.cgi?id=18154 ). The patches are tested with a P3041 board and a TURKS radeon card. It appears that the radeon driver is already generic enough (so no major changes were needed there), fortunately. I think esp. the TTM patch is clearly needed, but it may be incomplete... Allow > 32-bit physical addresses for TTM bus placement. --- linux-ppc-3.12/include/drm/ttm/ttm_bo_api.h 2014-08-05 13:47:31.082598913 +0200 +++ linux-ppc-3.12/include/drm/ttm/ttm_bo_api.h 2014-08-05 14:14:54.999755480 +0200 @@ -82,7 +82,7 @@ struct ttm_placement { */ struct ttm_bus_placement { void *addr; - unsigned long base; + resource_size_t base; unsigned long size; unsigned long offset; bool is_iomem;