diff options
| author | Ira Snyder <[email protected]> | 2009-05-15 11:33:20 -0700 |
|---|---|---|
| committer | Li Yang <[email protected]> | 2009-05-22 16:53:56 +0800 |
| commit | 776c8943f2766f2819fafd88fdfbaf418ecd6e41 (patch) | |
| tree | 6309f7faa86f2c0f7b843b9263ccc13bf379ec64 /net/lapb/lapb_subr.c | |
| parent | bcfb7465c03a8c62c89da374677df56f6b894d44 (diff) | |
fsldma: snooping is not enabled for last entry in descriptor chain
On the 83xx controller, snooping is necessary for the DMA controller to
ensure cache coherence with the CPU when transferring to/from RAM.
The last descriptor in a chain will always have the End-of-Chain interrupt
bit set, so we can set the snoop bit while adding the End-of-Chain
interrupt bit.
Signed-off-by: Ira W. Snyder <[email protected]>
Signed-off-by: Li Yang <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions