From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 02/16] dma-debug: add header file and core data structures Date: Fri, 9 Jan 2009 17:19:16 +0100 Message-ID: <1231517970-20288-3-git-send-email-joerg.roedel@amd.com> References: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> Mime-Version: 1.0 Content-Type: text/plain Cc: mingo@redhat.com, dwmw2@infradead.org, fujita.tomonori@lab.ntt.co.jp, netdev@vger.kernel.org, iommu@lists.linux-foundation.org, Joerg Roedel To: linux-kernel@vger.kernel.org Return-path: Received: from outbound-dub.frontbridge.com ([213.199.154.16]:28484 "EHLO IE1EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498AbZAIQTt (ORCPT ); Fri, 9 Jan 2009 11:19:49 -0500 In-Reply-To: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> Sender: netdev-owner@vger.kernel.org List-ID: Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel --- include/linux/dma-debug.h | 25 +++++++++++++++++++++++++ lib/Makefile | 2 ++ lib/dma-debug.c | 39 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 66 insertions(+), 0 deletions(-) create mode 100644 include/linux/dma-debug.h create mode 100644 lib/dma-debug.c diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h new file mode 100644 index 0000000..ce4ace7 --- /dev/null +++ b/include/linux/dma-debug.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Author: Joerg Roedel + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __DMA_DEBUG_H +#define __DMA_DEBUG_H + +struct device; + +#endif /* __DMA_DEBUG_H */ diff --git a/lib/Makefile b/lib/Makefile index 32b0e64..50b48cf 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -84,6 +84,8 @@ obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o obj-$(CONFIG_DYNAMIC_PRINTK_DEBUG) += dynamic_printk.o +obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o + hostprogs-y := gen_crc32table clean-files := crc32table.h diff --git a/lib/dma-debug.c b/lib/dma-debug.c new file mode 100644 index 0000000..d04f8b6 --- /dev/null +++ b/lib/dma-debug.c @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Author: Joerg Roedel + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include + +enum { + dma_debug_single, + dma_debug_sg, + dma_debug_coherent, +}; + +struct dma_debug_entry { + struct list_head list; + struct device *dev; + int type; + void *cpu_addr; + u64 dev_addr; + u64 size; + int direction; +}; + -- 1.5.6.4