From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from parcelfarce.linux.theplanet.co.uk (parcelfarce.linux.theplanet.co.uk [195.92.249.252]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 42FC9679EA for ; Sun, 8 May 2005 05:06:35 +1000 (EST) Date: Sat, 7 May 2005 11:05:27 -0300 From: Marcelo Tosatti To: Dan Malek Message-ID: <20050507140527.GC16996@logos.cnet> References: <20050505172035.GB3339@logos.cnet> <1b2c7da800815bcdd76ddf27a2ab9c55@embeddededge.com> <20050506133858.GA6032@logos.cnet> <3ebef94782a6090ac3eb44bd7e78efbf@embeddededge.com> <20050506200338.GC14486@logos.cnet> <84773f72b8bba863c9471c0d121223a8@embeddededge.com> <20050506230523.GA15908@logos.cnet> <6f231f4afce0886929ca99426a86b47a@embeddededge.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <6f231f4afce0886929ca99426a86b47a@embeddededge.com> Cc: linux-ppc-embedded Subject: Re: [PATCH] 8xx: fix usage of pinned 8Mbyte TLB entries List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > NO. Just leave that code alone. I don't understand why you think > doing this will have any effect on the system operation. If you are > able to run a system without creating these tables, then the pinned > TLBs must be working. If pinned TLBs weren't working, the kernel > would crash. I just booted a kernel with 4kb PTE mappings at KERNELBASE and the pinned TLB was not trashed. So, I was talking nonsense. :) The only problem are DMA users who dont use dma_alloc_coherent API.