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| author | Andy Walls <awalls@radix.net> | 2008-11-16 01:38:19 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:38:07 -0200 |
| commit | ee2d64f5ccc71b5c5191e92ea91a12b65f9ca060 (patch) | |
| tree | 0f01253a1e517f9c1f705901d873ca25bb2c872f /drivers/media/video/cx18/cx18-queue.h | |
| parent | ba38ee8ebe4a42ce2213802152b0b86a95dc109f (diff) | |
| download | linux-ee2d64f5ccc71b5c5191e92ea91a12b65f9ca060.tar.bz2 | |
V4L/DVB (9720): cx18: Major rewrite of interrupt handling for incoming mailbox processing
A major rewrite of interrupt handling for incoming mailbox processing, to split
the timing critical steps from the the deferrable steps as the sending XPU on
the CX23418 will time out and overwrite our incoming mailboxes rather quickly.
Setup a pool of work "order forms" for the irq handler to send jobs to the new
work handler routine which uses the kernel default work queue to do the
deferrable work. Started optimizing some of the cx18-io calls as they are now
the low hanging fruit for recoving microseconds back from the timeline.
Future optimizations will get rid of mmio read retries, mmio stats logging, and
combine smaller functions in the irq path into the larger ones to save ~2 us
each.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.h')
| -rw-r--r-- | drivers/media/video/cx18/cx18-queue.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index 7f93bb13c09f..92edb5e3a627 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -46,7 +46,7 @@ void cx18_queue_init(struct cx18_queue *q); void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, struct cx18_queue *q); struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); -struct cx18_buffer *cx18_queue_get_buf_irq(struct cx18_stream *s, u32 id, +struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, u32 bytesused); void cx18_flush_queues(struct cx18_stream *s); |