This patch introduces a new API to allow platform driver to register platform specific carveout regions.
Signed-off-by: Loic Pallardy <[email protected]> --- drivers/remoteproc/remoteproc_core.c | 22 ++++++++++++++++++++++ drivers/remoteproc/remoteproc_internal.h | 7 +++++++ include/linux/remoteproc.h | 2 ++ 3 files changed, 31 insertions(+) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index f23daf9..279320a 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -737,6 +737,7 @@ static int rproc_handle_carveout(struct rproc *rproc, carveout->dma = dma; carveout->da = rsc->da; carveout->release = rproc_release_carveout; + carveout->priv = (void *)CARVEOUT_RSC_ALLOCATED; list_add_tail(&carveout->node, &rproc->carveouts); @@ -751,6 +752,27 @@ static int rproc_handle_carveout(struct rproc *rproc, return ret; } +/** + * rproc_add_carveout() - register an allocated carveout region + * @rproc: rproc handle + * @mem: memory entry to register + * + * This function registers specified memory entry in @rproc carveouts list. + * Specified carveout should have been allocated before registering. + */ +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem) +{ + if (!rproc || !mem) + return -EINVAL; + + mem->priv = (void *)CARVEOUT_EXTERNAL; + + list_add_tail(&mem->node, &rproc->carveouts); + + return 0; +} +EXPORT_SYMBOL(rproc_add_carveout); + /* * A lookup table for resource handlers. The indices are defined in * enum fw_resource_type. diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index c1077be..69b22ac 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -23,6 +23,13 @@ #include <linux/irqreturn.h> #include <linux/firmware.h> +/* Indicate carveout origin */ +enum carveout_src { + CARVEOUT_RSC = 0, + CARVEOUT_RSC_ALLOCATED = 1, + CARVEOUT_EXTERNAL = 2, +}; + struct rproc; /** diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 8780f2e..5bd5175 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -522,6 +522,8 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, int rproc_del(struct rproc *rproc); void rproc_free(struct rproc *rproc); +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem); + int rproc_boot(struct rproc *rproc); void rproc_shutdown(struct rproc *rproc); void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type); -- 1.9.1
