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| author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2006-11-28 17:15:22 +0000 |
|---|---|---|
| committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2006-11-28 17:15:22 +0000 |
| commit | b2cb3ada56c99c622d9ffb4e53b371e8112deb78 (patch) | |
| tree | a9d23c2ff5573b28681b6748abe94ffe85ac5324 /xen/include/xen/mm.h | |
| parent | f8cd45575d8a1cd3c03e5ba9638d573865992f27 (diff) | |
| download | xen-b2cb3ada56c99c622d9ffb4e53b371e8112deb78.tar.gz xen-b2cb3ada56c99c622d9ffb4e53b371e8112deb78.tar.bz2 xen-b2cb3ada56c99c622d9ffb4e53b371e8112deb78.zip | |
Allow DMA address width to be overridden with boot parameters:
In Xen: dma_bits=28 (for example)
In Linux: swiotlb_bits=28 (for example)
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'xen/include/xen/mm.h')
| -rw-r--r-- | xen/include/xen/mm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h index 4d05f6917f..7b9f76dea2 100644 --- a/xen/include/xen/mm.h +++ b/xen/include/xen/mm.h @@ -89,6 +89,10 @@ int assign_pages( #define MAX_ORDER 20 /* 2^20 contiguous pages */ #endif +/* DMA heap parameters. */ +extern unsigned int dma_bitsize; +extern unsigned long max_dma_mfn; + /* Automatic page scrubbing for dead domains. */ extern struct list_head page_scrub_list; #define page_scrub_schedule_work() \ |