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Subject[PATCH 3/7] remoteproc: Pass struct fw to load_segments and find_rsc_table.
Date
From: Sjur Brændeland <sjur.brandeland@stericsson.com>

Prepare for introduction of custom firmware loaders by changing
the functions rproc_find_rcs_table() and rproc_load_segments()
to use struct firmware as parameter.

When the custom loader framework is introduced all calls into
the firmware specific function must use struct firmware as
parameter.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
---
drivers/remoteproc/remoteproc_core.c | 24 ++++++++++++------------
1 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 9d6343d..07036e2 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -192,8 +192,7 @@ static void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
/**
* rproc_load_segments() - load firmware segments to memory
* @rproc: remote processor which will be booted using these fw segments
- * @elf_data: the content of the ELF firmware image
- * @len: firmware size (in bytes)
+ * @fw: the the ELF firmware image
*
* This function loads the firmware segments to memory, where the remote
* processor expects them.
@@ -215,12 +214,13 @@ static void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
* supported, though.
*/
static int
-rproc_load_segments(struct rproc *rproc, const u8 *elf_data, size_t len)
+rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
{
struct device *dev = rproc->dev;
struct elf32_hdr *ehdr;
struct elf32_phdr *phdr;
int i, ret = 0;
+ const u8 *elf_data = fw->data;

ehdr = (struct elf32_hdr *)elf_data;
phdr = (struct elf32_phdr *)(elf_data + ehdr->e_phoff);
@@ -246,9 +246,9 @@ rproc_load_segments(struct rproc *rproc, const u8 *elf_data, size_t len)
break;
}

- if (offset + filesz > len) {
+ if (offset + filesz > fw->size) {
dev_err(dev, "truncated fw: need 0x%x avail 0x%zx\n",
- offset + filesz, len);
+ offset + filesz, fw->size);
ret = -EINVAL;
break;
}
@@ -824,8 +824,7 @@ rproc_handle_virtio_rsc(struct rproc *rproc, struct resource_table *table, int l
/**
* rproc_find_rsc_table() - find the resource table
* @rproc: the rproc handle
- * @elf_data: the content of the ELF firmware image
- * @len: firmware size (in bytes)
+ * @fw: the ELF firmware image
* @tablesz: place holder for providing back the table size
*
* This function finds the resource table inside the remote processor's
@@ -838,7 +837,7 @@ rproc_handle_virtio_rsc(struct rproc *rproc, struct resource_table *table, int l
* (and @tablesz isn't set).
*/
static struct resource_table *
-rproc_find_rsc_table(struct rproc *rproc, const u8 *elf_data, size_t len,
+rproc_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
int *tablesz)
{
struct elf32_hdr *ehdr;
@@ -847,6 +846,7 @@ rproc_find_rsc_table(struct rproc *rproc, const u8 *elf_data, size_t len,
struct device *dev = rproc->dev;
struct resource_table *table = NULL;
int i;
+ const u8 *elf_data = fw->data;

ehdr = (struct elf32_hdr *)elf_data;
shdr = (struct elf32_shdr *)(elf_data + ehdr->e_shoff);
@@ -863,7 +863,7 @@ rproc_find_rsc_table(struct rproc *rproc, const u8 *elf_data, size_t len,
table = (struct resource_table *)(elf_data + offset);

/* make sure we have the entire table */
- if (offset + size > len) {
+ if (offset + size > fw->size) {
dev_err(dev, "resource table truncated\n");
return NULL;
}
@@ -1040,7 +1040,7 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
rproc->bootaddr = ehdr->e_entry;

/* look for the resource table */
- table = rproc_find_rsc_table(rproc, fw->data, fw->size, &tablesz);
+ table = rproc_find_rsc_table(rproc, fw, &tablesz);
if (!table) {
ret = -EINVAL;
goto clean_up;
@@ -1054,7 +1054,7 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
}

/* load the ELF segments to memory */
- ret = rproc_load_segments(rproc, fw->data, fw->size);
+ ret = rproc_load_segments(rproc, fw);
if (ret) {
dev_err(dev, "Failed to load program segments: %d\n", ret);
goto clean_up;
@@ -1097,7 +1097,7 @@ static void rproc_fw_config_virtio(const struct firmware *fw, void *context)
goto out;

/* look for the resource table */
- table = rproc_find_rsc_table(rproc, fw->data, fw->size, &tablesz);
+ table = rproc_find_rsc_table(rproc, fw, &tablesz);
if (!table)
goto out;

--
1.7.5.4
--
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