From: Ingo Molnar <mingo@elte.hu>
To: Joerg Roedel <joro@8bytes.org>
Cc: Joerg Roedel <joerg.roedel@amd.com>,
netdev@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org
Subject: Re: [PATCH 03/10] x86: add initialization code for DMA-API debugging
Date: Sun, 23 Nov 2008 14:04:19 +0100 [thread overview]
Message-ID: <20081123130419.GA570@elte.hu> (raw)
In-Reply-To: <20081123112818.GC29663@elte.hu>
Another generic suggestion:
Why not just replace dma_ops with a debug version? That way it could
be a runtime feature based off the already existing DMA op callbacks,
without any extra overhead.
I'd prefer such a solution much more with an x86 architecture
maintainer hat on, because this way distributions could enable this
debug feature (with the facility being off by default) without
worrying about the wrapping overhead.
This would basically be a special variant of stacked DMA ops support.
Ingo
next prev parent reply other threads:[~2008-11-23 13:04 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-21 16:26 [PATCH 0/10] DMA-API debugging facility Joerg Roedel
2008-11-21 16:26 ` [PATCH 01/10] x86: add Kconfig entry for DMA-API debugging Joerg Roedel
2008-11-21 16:40 ` Ingo Molnar
2008-11-21 16:48 ` Joerg Roedel
2008-11-21 23:18 ` David Miller
2008-11-21 16:26 ` [PATCH 02/10] x86: add data structures " Joerg Roedel
2008-11-21 16:42 ` Ingo Molnar
2008-11-21 16:49 ` Joerg Roedel
2008-11-21 16:26 ` [PATCH 03/10] x86: add initialization code " Joerg Roedel
2008-11-21 16:56 ` Ingo Molnar
2008-11-21 17:10 ` Joerg Roedel
2008-11-21 17:19 ` Ingo Molnar
2008-11-21 17:27 ` Ingo Molnar
2008-11-21 17:43 ` Ingo Molnar
2008-11-22 9:48 ` Joerg Roedel
2008-11-23 11:28 ` Ingo Molnar
2008-11-23 11:35 ` Ingo Molnar
2008-11-23 13:04 ` Ingo Molnar [this message]
2008-11-22 3:27 ` FUJITA Tomonori
2008-11-22 9:40 ` Joerg Roedel
2008-11-22 10:16 ` FUJITA Tomonori
2008-11-22 12:28 ` FUJITA Tomonori
2008-11-23 19:36 ` Andi Kleen
2008-11-21 16:26 ` [PATCH 04/10] x86: add helper functions for consistency checks Joerg Roedel
2008-11-21 17:07 ` Ingo Molnar
2008-11-21 16:26 ` [PATCH 05/10] x86: add check code for map/unmap_single code Joerg Roedel
2008-11-22 3:27 ` FUJITA Tomonori
2008-11-22 9:39 ` Joerg Roedel
2008-11-21 16:26 ` [PATCH 06/10] x86: add check code for map/unmap_sg code Joerg Roedel
2008-11-21 16:58 ` Ingo Molnar
2008-11-21 17:10 ` Ingo Molnar
2008-11-21 16:26 ` [PATCH 07/10] x86: add checks for alloc/free_coherent code Joerg Roedel
2008-11-21 16:57 ` Ingo Molnar
2008-11-22 3:27 ` FUJITA Tomonori
2008-11-22 9:38 ` Joerg Roedel
2008-11-21 16:26 ` [PATCH 08/10] x86: add checks for sync_single* code Joerg Roedel
2008-11-21 16:26 ` [PATCH 09/10] x86: add checks for sync_single_range* code Joerg Roedel
2008-11-21 16:26 ` [PATCH 10/10] x86: add checks for sync_sg* code Joerg Roedel
2008-11-21 16:59 ` Ingo Molnar
2008-11-21 16:37 ` [PATCH 0/10] DMA-API debugging facility Ingo Molnar
2008-11-21 16:40 ` Joerg Roedel
2008-11-21 16:52 ` Joerg Roedel
2008-11-21 16:54 ` David Woodhouse
2008-11-21 16:57 ` Joerg Roedel
2008-11-21 17:03 ` Ingo Molnar
2008-11-21 17:06 ` David Woodhouse
2008-11-21 17:18 ` Ingo Molnar
2008-11-21 17:20 ` Joerg Roedel
2008-11-21 17:24 ` David Woodhouse
2008-11-21 17:27 ` Joerg Roedel
2008-11-21 17:45 ` Ingo Molnar
2008-11-22 3:27 ` FUJITA Tomonori
2008-11-22 9:33 ` Joerg Roedel
2008-11-22 10:16 ` FUJITA Tomonori
2009-02-05 22:44 ` David Woodhouse
2009-02-25 8:11 ` David Woodhouse
2009-07-01 13:19 ` [PATCH] Support DMA-API debugging facility on PowerPC David Woodhouse
2009-07-01 14:00 ` Christoph Hellwig
2009-07-01 18:34 ` Joerg Roedel
2009-07-02 14:09 ` Kumar Gala
2008-11-21 17:22 ` [PATCH 0/10] DMA-API debugging facility David Woodhouse
2008-11-22 3:27 ` FUJITA Tomonori
2008-11-22 9:29 ` Joerg Roedel
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