Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 5 Jul 2001 07:55:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 5 Jul 2001 07:54:58 -0400 Received: from t2.redhat.com ([199.183.24.243]:44275 "HELO executor.cambridge.redhat.com") by vger.kernel.org with SMTP id ; Thu, 5 Jul 2001 07:54:50 -0400 Message-ID: <3B44558A.B52B5C60@redhat.com> Date: Thu, 05 Jul 2001 12:54:50 +0100 From: Arjan van de Ven Reply-To: arjanv@redhat.com Organization: Red Hat, Inc X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.3-11.3smp i686) X-Accept-Language: en MIME-Version: 1.0 To: Vasu Varma P V , linux-kernel@vger.kernel.org Subject: Re: DMA memory limitation? In-Reply-To: <3B4453E6.F4342781@techmas.hcltech.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Vasu Varma P V wrote: > > Hi, > > Is there any limitation on DMA memory we can allocate using > kmalloc(size, GFP_DMA)? I am not able to acquire more than > 14MB of the mem using this on my PCI SMP box with 256MB ram. > I think there is restriction on ISA boards of 16MB. > Can we increase it ? Why? YOu don't have to allocate GFP_DMA memory for PCI cards! GFP_DMA is for ISA cards only - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/