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| author | Joerg Roedel <jroedel@suse.de> | 2015-12-22 18:06:49 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-12-28 19:18:54 +0300 |
| commit | a639a8eecf2be962b5dcd38dedd8b6bd10c2354b (patch) | |
| tree | e3649abc2af73a3107354cf32f076ad3bbf63162 /drivers/usb/host/ehci-dbg.c | |
| parent | 7b5e25b84eba25e78bce736a5c99649f7ff0f5c2 (diff) | |
| download | linux-a639a8eecf2be962b5dcd38dedd8b6bd10c2354b.tar.xz | |
iommu/amd: Preallocate dma_ops apertures based on dma_mask
Preallocate between 4 and 8 apertures when a device gets it
dma_mask. With more apertures we reduce the lock contention
of the domain lock significantly.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-dbg.c')
0 files changed, 0 insertions, 0 deletions