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linux/lib/dma-debug.c

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dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add add checking for map/unmap_sg Impact: add debug callbacks for dma_{un}map_sg Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:19:54 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add initialization code Impact: add code to initialize dma-debug core data structures Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:54:42 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add checks for kernel text and rodata 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>
2009-03-16 16:51:55 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add header file and core data structures Impact: add groundwork for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:19:52 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add allocator code Impact: add allocator code for struct dma_debug_entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:42:46 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add allocator code Impact: add allocator code for struct dma_debug_entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:42:46 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add kernel command line parameters Impact: add dma_debug= and dma_debug_entries= kernel parameters Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:01:56 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add function to dump dma mappings 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>
2009-02-12 16:19:13 +01:00
dma-debug: add hash functions for dma_debug_entries Impact: implement necessary functions for the core hash Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:34:49 +01:00
dma-debug: add allocator code Impact: add allocator code for struct dma_debug_entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:42:46 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add allocator code Impact: add allocator code for struct dma_debug_entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:42:46 +01:00
dma-debug: add initialization code Impact: add code to initialize dma-debug core data structures Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:54:42 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add a check dma memory leaks 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>
2009-03-16 17:32:14 +01:00
dma-debug: remove broken dma memory leak detection for 2.6.30 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>
2009-04-24 14:35:57 +02:00
dma-debug: add a check dma memory leaks 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>
2009-03-16 17:32:14 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add initialization code Impact: add code to initialize dma-debug core data structures Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:54:42 +01:00
dma-debug: add debugfs interface Impact: add debugfs interface for configuring DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:13:27 +01:00
dma-debug: add kernel command line parameters Impact: add dma_debug= and dma_debug_entries= kernel parameters Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:01:56 +01:00
dma-debug: add initialization code Impact: add code to initialize dma-debug core data structures Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 12:54:42 +01:00
dma-debug: add kernel command line parameters Impact: add dma_debug= and dma_debug_entries= kernel parameters Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 13:01:56 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: warn of unmapping an invalid dma address 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>
2009-03-19 10:39:31 +09:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: warn of unmapping an invalid dma address 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>
2009-03-19 10:39:31 +09:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add checks for kernel text and rodata 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>
2009-03-16 16:51:55 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: fix printk formats (i386) 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>
2009-03-30 14:08:44 -07:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: fix printk formats (i386) 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>
2009-03-30 14:08:44 -07:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: fix printk formats (i386) 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>
2009-03-30 14:08:44 -07:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: print stacktrace of mapping path on unmap error 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>
2009-01-19 16:52:39 +01:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: fix printk formats (i386) 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>
2009-03-30 14:08:44 -07:00
dma-debug: add core checking functions Impact: add functions to check on dma unmap and sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:10:26 +01:00
dma-debug: add checking for map/unmap_page/single Impact: add debug callbacks for dma_{un}map_[page|single] Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:14:49 +01:00
dma-debug: make memory range checks more consistent 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>
2009-03-23 15:35:08 +01:00
dma-debug: add checking for map/unmap_page/single Impact: add debug callbacks for dma_{un}map_[page|single] Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:14:49 +01:00
dma-debug: make memory range checks more consistent 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>
2009-03-23 15:35:08 +01:00
dma-debug: add checks for kernel text and rodata 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>
2009-03-16 16:51:55 +01:00
dma-debug: add checking for map/unmap_page/single Impact: add debug callbacks for dma_{un}map_[page|single] Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:14:49 +01:00
dma-debug: add add checking for map/unmap_sg Impact: add debug callbacks for dma_{un}map_sg Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:19:54 +01:00
dma-debug: make memory range checks more consistent 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>
2009-03-23 15:35:08 +01:00
dma-debug: add add checking for map/unmap_sg Impact: add debug callbacks for dma_{un}map_sg Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:19:54 +01:00
dma-debug: add checking for [alloc|free]_coherent Impact: add debug callbacks for dma_[alloc|free]_coherent Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:38:50 +01:00
dma-debug: add checks for sync_single_* Impact: add debug callbacks for dma_sync_single_for_* functions Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:43:04 +01:00
dma-debug: add checks for sync_single_range_* Impact: add debug callbacks for dma_sync_single_range_for_* functions Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 14:55:38 +01:00
dma-debug: add checks for sync_single_sg_* Impact: add debug callbacks for dma_sync_sg_* functions Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-09 15:01:12 +01:00