The newly introduced "always-on" flag allows us to stop giving the vdevs special treatment. The ordering of resource allocation and life cycle of the remote processor is kept intact.
This allows us to mark a remote processor with vdevs to not boot unless explicitly requested to do so by a client driver. Cc: Lee Jones <[email protected]> Cc: Loic Pallardy <[email protected]> Signed-off-by: Bjorn Andersson <[email protected]> --- drivers/remoteproc/remoteproc_core.c | 34 ++++++++++++++-------------------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 084ebffdfc47..9d64409f3839 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -753,6 +753,7 @@ static int rproc_handle_resources(struct rproc *rproc, int len, static void rproc_resource_cleanup(struct rproc *rproc) { struct rproc_mem_entry *entry, *tmp; + struct rproc_vdev *rvdev, *rvtmp; struct device *dev = &rproc->dev; /* clean up debugfs trace entries */ @@ -785,6 +786,10 @@ static void rproc_resource_cleanup(struct rproc *rproc) list_del(&entry->node); kfree(entry); } + + /* clean up remote vdev entries */ + list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node) + rproc_remove_virtio_dev(rvdev); } /* @@ -835,6 +840,13 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) /* reset max_notifyid */ rproc->max_notifyid = -1; + /* look for virtio devices and register them */ + ret = rproc_handle_resources(rproc, tablesz, rproc_vdev_handler); + if (ret) { + dev_err(dev, "Failed to handle vdev resources: %d\n", ret); + goto clean_up; + } + /* handle fw resources which are required to boot rproc */ ret = rproc_handle_resources(rproc, tablesz, rproc_loading_handlers); if (ret) { @@ -898,7 +910,7 @@ static void rproc_fw_config_virtio(const struct firmware *fw, void *context) { struct rproc *rproc = context; struct resource_table *table; - int ret, tablesz; + int tablesz; if (rproc_fw_sanity_check(rproc, fw) < 0) goto out; @@ -922,9 +934,6 @@ static void rproc_fw_config_virtio(const struct firmware *fw, void *context) rproc->table_ptr = rproc->cached_table; - /* look for virtio devices and register them */ - ret = rproc_handle_resources(rproc, tablesz, rproc_vdev_handler); - /* if rproc is marked always-on, request it to boot */ if (rproc->always_on) rproc_boot_nowait(rproc); @@ -973,9 +982,6 @@ static int rproc_add_virtio_devices(struct rproc *rproc) */ int rproc_trigger_recovery(struct rproc *rproc) { - struct rproc_vdev *rvdev, *rvtmp; - int ret; - dev_err(&rproc->dev, "recovering %s\n", rproc->name); init_completion(&rproc->crash_comp); @@ -984,23 +990,11 @@ int rproc_trigger_recovery(struct rproc *rproc) /* TODO: make sure this works with rproc->power > 1 */ rproc_shutdown(rproc); - /* clean up remote vdev entries */ - list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node) - rproc_remove_virtio_dev(rvdev); - /* wait until there is no more rproc users */ wait_for_completion(&rproc->crash_comp); - /* Free the copy of the resource table */ - kfree(rproc->cached_table); - - ret = rproc_add_virtio_devices(rproc); - if (ret) - return ret; - /* - * boot the remote processor up again, waiting for the async fw load to - * finish + * boot the remote processor up again */ rproc_boot(rproc); -- 2.5.0
