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| author | Sjur Brændeland <sjur.brandeland@stericsson.com> | 2012-09-18 20:32:45 +0200 |
|---|---|---|
| committer | Ohad Ben-Cohen <ohad@wizery.com> | 2012-09-18 21:55:52 +0300 |
| commit | 099a3f33c82b5153a4422eb92c648098b3f7c086 (patch) | |
| tree | ceeb12f2321595dd465aac47873ab2497463a8b8 /drivers/remoteproc | |
| parent | 2e37abb89a2ef13c524b0728bb9893f996a10b6b (diff) | |
| download | lwn-099a3f33c82b5153a4422eb92c648098b3f7c086.tar.gz lwn-099a3f33c82b5153a4422eb92c648098b3f7c086.zip | |
remtoteproc: maintain max notifyid
Some of the rproc drivers (STE modem specifically) needs to know
the range of the notification IDs used for notifying the device.
Maintain a variable in struct rproc holding the largest allocated
notification id, so low-level rproc drivers could access it.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
[ohad: rebase, slightly edit commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 29fc8236cac9..b6c622982f8c 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -228,6 +228,9 @@ int rproc_alloc_vring(struct rproc_vdev *rvdev, int i) return ret; } + /* Store largest notifyid */ + rproc->max_notifyid = max(rproc->max_notifyid, notifyid); + dev_dbg(dev, "vring%d: va %p dma %x size %x idr %d\n", i, va, dma, size, notifyid); @@ -269,13 +272,25 @@ rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i) return 0; } +static int rproc_max_notifyid(int id, void *p, void *data) +{ + int *maxid = data; + *maxid = max(*maxid, id); + return 0; +} + void rproc_free_vring(struct rproc_vring *rvring) { int size = PAGE_ALIGN(vring_size(rvring->len, rvring->align)); struct rproc *rproc = rvring->rvdev->rproc; + int maxid = 0; dma_free_coherent(rproc->dev.parent, size, rvring->va, rvring->dma); idr_remove(&rproc->notifyids, rvring->notifyid); + + /* Find the largest remaining notifyid */ + idr_for_each(&rproc->notifyids, rproc_max_notifyid, &maxid); + rproc->max_notifyid = maxid; } /** |