- 29 May, 2009 1 commit
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FUJITA Tomonori authored
Architectures might not have dma_address in struct scatterlist (PARISC doesn't). Directly accessing to dma_address in struct scatterlist is wrong; we need to use sg_dma_address() accesssor instead. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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- 28 May, 2009 1 commit
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Joerg Roedel authored
This is basically a revert of commit 314eeac9 but now in a fixed version. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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- 26 Apr, 2009 1 commit
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Joerg Roedel authored
The feature needs some more work because the notfier which is used to check for pending allocations is called before the device drivers ->remove() function. Therefore this feature reports false positives. A real fix for this issue is to introduce a new notifier event which sent _after_ the driver has deinitialized itself. That will done for the next kernel version. [ Impact: reduce the scope of CONFIG_DMA_API_DEBUG=y checks ] Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org LKML-Reference: <1240576557-22442-1-git-send-email-joerg.roedel@amd.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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- 15 Apr, 2009 1 commit
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FUJITA Tomonori authored
We use a static value for the number of dma_debug_entries. It can be overwritten by a kernel command line option. Some IOMMUs (e.g. GART) can't set an appropriate value by a kernel command line option because they can't know such value until they finish initializing up their hardware. This patch adds dma_debug_resize_entries() enables IOMMUs to adjust the number of dma_debug_entries anytime. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by:
Joerg Roedel <joerg.roedel@amd.com> Cc: fujita.tomonori@lab.ntt.co.jp Cc: akpm@linux-foundation.org LKML-Reference: <20090415182234R.fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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- 30 Mar, 2009 1 commit
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Randy Dunlap authored
Fix printk format warnings in dma-debug: lib/dma-debug.c:645: warning: format '%016llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t' lib/dma-debug.c:662: warning: format '%016llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t' lib/dma-debug.c:676: warning: format '%016llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t' lib/dma-debug.c:686: warning: format '%016llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t' Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 24 Mar, 2009 1 commit
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Joerg Roedel authored
Impact: extend on-kernel-stack DMA debug checks to all !highmem pages We only checked dma_map_single() - extend it to dma_map_page() and dma_map_sg() as well. Also, fix dma_map_single() corner case bug: make sure we dont stack-check highmem (not mapped) pages. Reported-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org LKML-Reference: <1237818908-26516-1-git-send-email-joerg.roedel@amd.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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- 19 Mar, 2009 1 commit
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FUJITA Tomonori authored
Impact: extend DMA-debug checks Calling dma_unmap families against an invalid dma address should be a bug. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Joerg Roedel <joerg.roedel@amd.com> LKML-Reference: <20090319103743N.fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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- 17 Mar, 2009 4 commits
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Joerg Roedel authored
Impact: allow architectures to monitor busses for dma mem leakage This patch adds checking code to detect if a device has pending DMA operations when it is about to be unbound from its device driver. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: get notified if a device dma maps illegal areas This patch adds a check to print a warning message when a device driver tries to map a memory area from the kernel text segment or rodata. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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David Woodhouse authored
Impact: saves stacktrace of a dma mapping and prints it if there is an error Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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David Woodhouse authored
This adds a function to dump the DMA mappings that the debugging code is aware of -- either for a single device, or for _all_ devices. This can be useful for debugging -- sticking a call to it in the DMA page fault handler, for example, to see if the faulting address _should_ be mapped or not, and hence work out whether it's IOMMU bugs we're seeing, or driver bugs. Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com>
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- 05 Mar, 2009 13 commits
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Joerg Roedel authored
Impact: add debug callbacks for dma_sync_sg_* functions Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debug callbacks for dma_sync_single_range_for_* functions Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debug callbacks for dma_sync_single_for_* functions Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debug callbacks for dma_[alloc|free]_coherent Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debug callbacks for dma_{un}map_sg Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debug callbacks for dma_{un}map_[page|single] Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add functions to check on dma unmap and sync Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add dma_debug= and dma_debug_entries= kernel parameters Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add code to initialize dma-debug core data structures Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add allocator code for struct dma_debug_entry Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: implement necessary functions for the core hash Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Joerg Roedel authored
Impact: add groundwork for DMA-API debugging Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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- 23 Oct, 2008 2 commits
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H. Peter Anvin authored
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by:
H. Peter Anvin <hpa@zytor.com>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
H. Peter Anvin <hpa@zytor.com>
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- 19 Sep, 2008 1 commit
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Joerg Roedel authored
The AMD IOMMU can generate interrupts for various reasons. This patch adds the basic interrupt enabling infrastructure to the driver. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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- 22 Jul, 2008 1 commit
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Vegard Nossum authored
This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by:
Vegard Nossum <vegard.nossum@gmail.com>
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- 27 Jun, 2008 1 commit
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Joerg Roedel authored
This patch adds the amd_iommu.h file which will be included in the generic code. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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