linux-kernel - [PATCH v3 06/13] remoteproc: introduce rproc_add

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Date:   Thu, 1 Mar 2018 17:23:53 +0100
From:   Loic Pallardy <loic.pallardy@...com>
To:     <bjorn.andersson@...aro.org>, <ohad@...ery.com>
CC:     <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <arnaud.pouliquen@...com>, <benjamin.gaignard@...aro.org>,
        Loic Pallardy <loic.pallardy@...com>
Subject: [PATCH v3 06/13] remoteproc: introduce rproc_add_carveout function

This patch introduces a new API to allow platform driver to register
platform specific carveout regions.

Signed-off-by: Loic Pallardy <loic.pallardy@...com>
---
 drivers/remoteproc/remoteproc_core.c | 14 ++++++++++++++
 include/linux/remoteproc.h           |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 4c92b7d..91aa22b 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -758,6 +758,20 @@ 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 59b60f1..4aa30bd 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -536,6 +536,8 @@ 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,
 		int (*release)(struct rproc *, struct rproc_mem_entry *),
-- 
1.9.1