From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e33.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id j79LF6xk709850 for ; Tue, 9 Aug 2005 17:15:07 -0400 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay04.boulder.ibm.com (8.12.10/NCO/VERS6.7) with ESMTP id j79LFJFI268552 for ; Tue, 9 Aug 2005 15:15:19 -0600 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.12.11/8.13.3) with ESMTP id j79LF6kW024358 for ; Tue, 9 Aug 2005 15:15:06 -0600 Date: Tue, 9 Aug 2005 14:15:02 -0700 From: Mike Kravetz Subject: Re: [PATCH] gurantee DMA area for alloc_bootmem_low() ver. 2. Message-ID: <20050809211501.GB6235@w-mikek2.ibm.com> References: <20050809194115.C370.Y-GOTO@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050809194115.C370.Y-GOTO@jp.fujitsu.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Yasunori Goto Cc: linux-mm , Andrew Morton , "Martin J. Bligh" , linux-ia64@vger.kernel.org, "Luck, Tony" List-ID: On Tue, Aug 09, 2005 at 08:11:20PM +0900, Yasunori Goto wrote: > I modified the patch which guarantees allocation of DMA area > at alloc_bootmem_low(). Thanks! I was going to replace more instances of __pa(MAX_DMA_ADDRESS) with max_dma_physaddr(). However, when grepping for MAX_DMA_ADDRESS I noticed instances of virt_to_phys(MAX_DMA_ADDRESS) as well. Can someone tell me what the differences are between __pa() and virt_to_phys(). I noticed that on some archs they are the same, but are different on others. -- Mike -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org