From: Joerg Roedel <joerg.roedel@amd.com>
To: Ingo Molnar <mingo@redhat.com>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [RFC][GIT PULL] dma-api debugging facility
Date: Thu, 5 Mar 2009 21:03:38 +0100 [thread overview]
Message-ID: <20090305200338.GA31182@amd.com> (raw)
Hi Ingo,
The following changes since commit 0bd5c4f7c874cf48ff7904dcf8a59988c8fea0e8:
Ingo Molnar (1):
Merge branch 'iommu/fixes-2.6.29' of git://git.kernel.org/.../joro/linux-2.6-iommu into core/iommu
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git dma-api/debug
David Woodhouse (2):
dma-debug: add function to dump dma mappings
dma-debug: print stacktrace of mapping path on unmap error
Joerg Roedel (16):
dma-debug: add Kconfig entry
dma-debug: add header file and core data structures
dma-debug: add hash functions for dma_debug_entries
dma-debug: add allocator code
dma-debug: add initialization code
dma-debug: add kernel command line parameters
dma-debug: add debugfs interface
dma-debug: add core checking functions
dma-debug: add checking for map/unmap_page/single
dma-debug: add add checking for map/unmap_sg
dma-debug: add checking for [alloc|free]_coherent
dma-debug: add checks for sync_single_*
dma-debug: add checks for sync_single_range_*
dma-debug: add checks for sync_single_sg_*
dma-debug: x86 architecture bindings
dma-debug: Documentation update
Documentation/DMA-API.txt | 106 +++++
Documentation/kernel-parameters.txt | 10 +
arch/Kconfig | 2 +
arch/x86/Kconfig | 1 +
arch/x86/include/asm/dma-mapping.h | 45 ++-
arch/x86/kernel/pci-dma.c | 6 +
include/linux/dma-debug.h | 167 +++++++
lib/Kconfig.debug | 11 +
lib/Makefile | 2 +
lib/dma-debug.c | 870 +++++++++++++++++++++++++++++++++++
10 files changed, 1214 insertions(+), 6 deletions(-)
create mode 100644 include/linux/dma-debug.h
create mode 100644 lib/dma-debug.c
A few changes were made since the v3 post of this code:
* new checks were added
* stack trace of mapping path is printed
* default number of preallocated entries has been increased to 32768 on
x86 - in the latest tests I had more than 26000 dma-api allocations in
the hash
* therefore the hash size has been increased to 1024
Please pull.
Joerg
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next reply other threads:[~2009-03-05 20:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-05 20:03 Joerg Roedel [this message]
2009-03-05 20:59 ` [RFC][GIT PULL] dma-api debugging facility FUJITA Tomonori
2009-03-05 22:33 ` Joerg Roedel
2009-03-05 23:22 ` Chris Wright
2009-03-06 13:07 ` Joerg Roedel
2009-03-06 11:20 ` Ingo Molnar
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