diff options
| author | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
| commit | dba0a918722ee0f0ba3442575e4448c3ab622be4 (patch) | |
| tree | fdb466cf09e7916135098d651b18924b2fe9ba5f /drivers/dma/iop-adma.c | |
| parent | 0996e6382482ce9014787693d3884e9468153a5c (diff) | |
| parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
| download | linux-dba0a918722ee0f0ba3442575e4448c3ab622be4.tar.gz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Diffstat (limited to 'drivers/dma/iop-adma.c')
| -rw-r--r-- | drivers/dma/iop-adma.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index 71fba82462cb..c7a9306d951d 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -411,6 +411,7 @@ iop_adma_tx_submit(struct dma_async_tx_descriptor *tx) int slot_cnt; int slots_per_op; dma_cookie_t cookie; + dma_addr_t next_dma; grp_start = sw_desc->group_head; slot_cnt = grp_start->slot_cnt; @@ -425,12 +426,12 @@ iop_adma_tx_submit(struct dma_async_tx_descriptor *tx) &old_chain_tail->chain_node); /* fix up the hardware chain */ - iop_desc_set_next_desc(old_chain_tail, grp_start->async_tx.phys); + next_dma = grp_start->async_tx.phys; + iop_desc_set_next_desc(old_chain_tail, next_dma); + BUG_ON(iop_desc_get_next_desc(old_chain_tail) != next_dma); /* flush */ - /* 1/ don't add pre-chained descriptors - * 2/ dummy read to flush next_desc write - */ - BUG_ON(iop_desc_get_next_desc(sw_desc)); + /* check for pre-chained descriptors */ + iop_paranoia(iop_desc_get_next_desc(sw_desc)); /* increment the pending count by the number of slots * memcpy operations have a 1:1 (slot:operation) relation |