diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-06-15 23:54:26 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-06-24 10:25:09 +0300 |
| commit | 0705107fcc80711680b169abc2011686dded6c21 (patch) | |
| tree | 642cf4f356f2fb743092f2834a72d7ca878af99f /drivers/dma/idxd/idxd.h | |
| parent | 77522b2191368ea57720e960fc3c7e6fbfc04533 (diff) | |
| download | linux-0705107fcc80711680b169abc2011686dded6c21.tar.xz | |
dmaengine: idxd: move submission to sbitmap_queue
Kill the percpu-rwsem for work submission in favor of an sbitmap_queue.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/159225446631.68253.8860709181621260997.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/idxd.h')
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index b8f8a363b4a7..b03a754918ef 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -104,7 +104,6 @@ struct idxd_wq { enum idxd_wq_state state; unsigned long flags; union wqcfg wqcfg; - atomic_t dq_count; /* dedicated queue flow control */ u32 vec_ptr; /* interrupt steering */ struct dsa_hw_desc **hw_descs; int num_descs; @@ -112,10 +111,8 @@ struct idxd_wq { dma_addr_t compls_addr; int compls_size; struct idxd_desc **descs; - struct sbitmap sbmap; + struct sbitmap_queue sbq; struct dma_chan dma_chan; - struct percpu_rw_semaphore submit_lock; - wait_queue_head_t submit_waitq; char name[WQ_NAME_SIZE + 1]; }; @@ -201,6 +198,7 @@ struct idxd_desc { struct llist_node llnode; struct list_head list; int id; + int cpu; struct idxd_wq *wq; }; |