From ba7290e01663787fcfc2bedaff6232359d4ff248 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sjur=20Br=C3=A6ndeland?= Date: Thu, 21 Feb 2013 18:15:37 +0100 Subject: remoteproc: calculate max_notifyid by counting vrings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Simplify handling of max_notifyid by simply counting the number of vrings. Signed-off-by: Sjur Brændeland Acked-by: Ido Yariv [small terminology changes] Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/remoteproc_core.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) (limited to 'drivers/remoteproc/remoteproc_core.c') diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index b8228c628b0c..9d2a4ac6c706 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -224,9 +224,6 @@ int rproc_alloc_vring(struct rproc_vdev *rvdev, int i) } notifyid = ret; - /* Store largest notifyid */ - rproc->max_notifyid = max(rproc->max_notifyid, notifyid); - dev_dbg(dev, "vring%d: va %p dma %llx size %x idr %d\n", i, va, (unsigned long long)dma, size, notifyid); @@ -268,25 +265,13 @@ 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; } /** @@ -669,6 +654,15 @@ free_carv: return ret; } +static int rproc_count_vrings(struct rproc *rproc, struct fw_rsc_vdev *rsc, + int avail) +{ + /* Summarize the number of notification IDs */ + rproc->max_notifyid += rsc->num_of_vrings; + + return 0; +} + /* * A lookup table for resource handlers. The indices are defined in * enum fw_resource_type. @@ -684,6 +678,10 @@ static rproc_handle_resource_t rproc_vdev_handler[RSC_LAST] = { [RSC_VDEV] = (rproc_handle_resource_t)rproc_handle_vdev, }; +static rproc_handle_resource_t rproc_count_vrings_handler[RSC_LAST] = { + [RSC_VDEV] = (rproc_handle_resource_t)rproc_count_vrings, +}; + /* handle firmware resource entries before booting the remote processor */ static int rproc_handle_resources(struct rproc *rproc, struct resource_table *table, int len, @@ -858,6 +856,11 @@ static void rproc_fw_config_virtio(const struct firmware *fw, void *context) if (!table) goto out; + /* count the number of notify-ids */ + rproc->max_notifyid = -1; + ret = rproc_handle_resources(rproc, table, tablesz, + rproc_count_vrings_handler); + /* look for virtio devices and register them */ ret = rproc_handle_resources(rproc, table, tablesz, rproc_vdev_handler); if (ret) -- cgit v1.2.1