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64 Commits

Author SHA1 Message Date
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
2d62ece14f 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>
 2009-03-05 20:35:17 +01:00
Joerg Roedel
788dcfa6f1 dma-debug: add debugfs interface 
Impact: add debugfs interface for configuring DMA-API debugging

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-03-05 20:35:16 +01:00
Joerg Roedel
59d3daafa1 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>
 2009-03-05 20:35:16 +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
3b1e79ed73 dma-debug: add allocator code 
Impact: add allocator code for struct dma_debug_entry

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-03-05 20:35:15 +01:00
Joerg Roedel
30dfa90cc8 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>
 2009-03-05 20:35:04 +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