This patch introduces rproc_mem_entry_init helper function to
simplify rproc_mem_entry structure allocation and filling by
client.
Signed-off-by: Loic Pallardy <loic.pallardy@xxxxxx>
---
drivers/remoteproc/remoteproc_core.c | 64 +++++++++++++++++++++++++++---------
include/linux/remoteproc.h | 5 +++
2 files changed, 53 insertions(+), 16 deletions(-)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index f73a0cf..4c92b7d 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -636,7 +636,7 @@ static int rproc_handle_carveout(struct rproc *rproc,
struct fw_rsc_carveout *rsc,
int offset, int avail)
{
- struct rproc_mem_entry *carveout, *mapping;
+ struct rproc_mem_entry *carveout, *mapping = NULL;
struct device *dev = &rproc->dev;
dma_addr_t dma;
void *va;
@@ -656,16 +656,11 @@ static int rproc_handle_carveout(struct rproc *rproc,
dev_dbg(dev, "carveout rsc: name: %s, da 0x%x, pa 0x%x, len 0x%x, flags 0x%x\n",
rsc->name, rsc->da, rsc->pa, rsc->len, rsc->flags);
- carveout = kzalloc(sizeof(*carveout), GFP_KERNEL);
- if (!carveout)
- return -ENOMEM;
-
va = dma_alloc_coherent(dev->parent, rsc->len, &dma, GFP_KERNEL);
if (!va) {
dev_err(dev->parent,
"failed to allocate dma memory: len 0x%x\n", rsc->len);
- ret = -ENOMEM;
- goto free_carv;
+ return -ENOMEM;
}
dev_dbg(dev, "carveout va %p, dma %pad, len 0x%x\n",
@@ -744,27 +739,64 @@ static int rproc_handle_carveout(struct rproc *rproc,
*/
rsc->pa = (u32)rproc_va_to_pa(va);
- carveout->va = va;
- carveout->len = rsc->len;
- carveout->dma = dma;
- carveout->da = rsc->da;
- carveout->release = rproc_release_carveout;
- strlcpy(carveout->name, rsc->name, sizeof(carveout->name));
+ carveout = rproc_mem_entry_init(dev, va, dma, rsc->len, rsc->da,
+ rproc_release_carveout, rsc->name);
+ if (!carveout)
+ goto free_carv;
list_add_tail(&carveout->node, &rproc->carveouts);
return 0;
+free_carv:
+ kfree(carveout);
free_mapping:
kfree(mapping);
dma_free:
dma_free_coherent(dev->parent, rsc->len, va, dma);
-free_carv:
- kfree(carveout);
return ret;
}
-/*
+/**
+ * rproc_mem_entry_init() - allocate and initialize rproc_mem_entry struct
+ * @dev: pointer on device struct
+ * @va: virtual address
+ * @dma: dma address
+ * @len: memory carveout length
+ * @da: device address
+ * @release: memory carveout function
+ * @name: carveout name
+ *
+ * This function allocates a rproc_mem_entry struct and fill it with parameters
+ * provided by client.
+ */
+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 *),
+ const char *name, ...)
+{
+ struct rproc_mem_entry *mem;
+ va_list args;
+
+ mem = devm_kzalloc(dev, sizeof(*mem), GFP_KERNEL);
+ if (!mem)
+ return ERR_PTR(-ENOMEM);
+
+ mem->va = va;
+ mem->dma = dma;
+ mem->da = da;
+ mem->len = len;
+ mem->release = release;
+
+ va_start(args, name);
+ snprintf(mem->name, sizeof(mem->name), name, args);
+ va_end(args);
+
+ return mem;
+}
+EXPORT_SYMBOL(rproc_mem_entry_init);
+
+/**
* A lookup table for resource handlers. The indices are defined in
* enum fw_resource_type.
*/
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 2202c08..59b60f1 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -536,6 +536,11 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
int rproc_del(struct rproc *rproc);
void rproc_free(struct rproc *rproc);
+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 *),
+ const char *name, ...);
+
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
--
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