Messages in this thread | | | Subject | Re: [PATCH v4 06/17] remoteproc: introduce rproc_add_carveout function | From | Suman Anna <> | Date | Tue, 23 Oct 2018 12:05:28 -0500 |
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Hi Bjorn, Loic,
On 7/27/18 8:14 AM, Loic Pallardy wrote: > This patch introduces a new API to allow platform driver to register > platform specific carveout regions. > > Signed-off-by: Loic Pallardy <loic.pallardy@st.com> > Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Hmm, I do not prefer that this function be exported. It adds no value, and this adds an asymmetric API for remoteproc drivers to add a mem entry to the internal remoteproc lists, while relying on the remoteproc core to remove them. The carveout list maintenance is a remoteproc internal scheme, and so should be maintained that way. Further more, on the current series, all the existing calls are immediately after a rproc_of_resm_mem_entry_init() or a rproc_mem_entry_init() function, which means this could very well be folded into those individual functions.
regards Suman
> --- > drivers/remoteproc/remoteproc_core.c | 16 +++++++++++++++- > include/linux/remoteproc.h | 2 ++ > 2 files changed, 17 insertions(+), 1 deletion(-) > > diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c > index b76760e..fe6c4e4 100644 > --- a/drivers/remoteproc/remoteproc_core.c > +++ b/drivers/remoteproc/remoteproc_core.c > @@ -747,7 +747,7 @@ static int rproc_handle_carveout(struct rproc *rproc, > if (!carveout) > goto free_carv; > > - list_add_tail(&carveout->node, &rproc->carveouts); > + rproc_add_carveout(rproc, carveout); > > return 0; > > @@ -761,6 +761,20 @@ static int rproc_handle_carveout(struct rproc *rproc, > } > > /** > + * 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. > + */ > +void rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem) > +{ > + list_add_tail(&mem->node, &rproc->carveouts); > +} > +EXPORT_SYMBOL(rproc_add_carveout); > + > +/** > * rproc_mem_entry_init() - allocate and initialize rproc_mem_entry struct > * @dev: pointer on device struct > * @va: virtual address > diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h > index 4bc961f..55f30fc 100644 > --- a/include/linux/remoteproc.h > +++ b/include/linux/remoteproc.h > @@ -558,6 +558,8 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, > int rproc_del(struct rproc *rproc); > void rproc_free(struct rproc *rproc); > > +void rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem); > + > struct rproc_mem_entry * > rproc_mem_entry_init(struct device *dev, > void *va, dma_addr_t dma, int len, u32 da, >
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