Commit Graph

11 Commits

Author SHA1 Message Date
Ingo Molnar
84be58d460 dma-debug: fix dma_debug_add_bus() definition for !CONFIG_DMA_API_DEBUG
Impact: build fix

Fix:

 arch/x86/kvm/x86.o: In function `dma_debug_add_bus':
 (.text+0x0): multiple definition of `dma_debug_add_bus'

dma_debug_add_bus() should be a static inline function.

Cc: Joerg Roedel <joerg.roedel@amd.com>
LKML-Reference: <20090317120112.GP6159@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-18 11:53:48 +01:00
Joerg Roedel
41531c8f5f 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>
2009-03-17 12:56:49 +01:00
David Woodhouse
ac26c18bd3 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>
2009-03-17 12:56:39 +01:00
Joerg Roedel
a31fba5d68 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>
2009-03-05 20:35:21 +01:00
Joerg Roedel
948408ba3e 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>
2009-03-05 20:35:21 +01:00
Joerg Roedel
b9d2317e0c 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>
2009-03-05 20:35:20 +01:00
Joerg Roedel
6bfd449876 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>
2009-03-05 20:35:19 +01:00
Joerg Roedel
972aa45cea 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>
2009-03-05 20:35:18 +01:00
Joerg Roedel
f62bc980e6 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>
2009-03-05 20:35:18 +01:00
Joerg Roedel
6bf078715c dma-debug: add initialization code
Impact: add code to initialize dma-debug core data structures

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-03-05 20:35:15 +01:00
Joerg Roedel
f2f45e5f3c 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>
2009-03-05 15:11:12 +01:00