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Date: Tue, 22 May 2012 15:26:53 +0200
From: sjur.brandeland@...ricsson.com
To: Ohad Ben-Cohen <ohad@...ery.com>
Cc: Loic PALLARDY <loic.pallardy@...ricsson.com>,
Ludovic BARRE <ludovic.barre@...ricsson.com>,
linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
Linus Walleij <linus.walleij@...aro.org>,
Sjur Brændeland <sjurbren@...il.com>,
Sjur Brændeland <sjur.brandeland@...ricsson.com>
Subject: [RFC 2/6] remoteproc: Pass struct fw to load_segments and find_rsc_table.
From: Sjur Brændeland <sjur.brandeland@...ricsson.com>
Use struct firmware as arguments to functions rproc_find_rcs_table()
and rproc_load_segments().
Signed-off-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>
---
drivers/remoteproc/remoteproc_core.c | 38 +++++++++++++++++-----------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 1bba479..3d980ea 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;
@@ -847,11 +846,19 @@ 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);
name_table = elf_data + shdr[ehdr->e_shstrndx].sh_offset;
+ /*
+ * The ELF entry point is the rproc's boot addr (though this is not
+ * a configurable property of all remote processors: some will always
+ * boot at a specific hardcoded address).
+ */
+ rproc->bootaddr = ehdr->e_entry;
+
/* look for the resource table and handle it */
for (i = 0; i < ehdr->e_shnum; i++, shdr++) {
int size = shdr->sh_size;
@@ -863,7 +870,7 @@ 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;
}
@@ -1032,15 +1039,8 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
return ret;
}
- /*
- * The ELF entry point is the rproc's boot addr (though this is not
- * a configurable property of all remote processors: some will always
- * boot at a specific hardcoded address).
- */
- 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)
goto clean_up;
@@ -1052,7 +1052,7 @@ 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;
@@ -1095,7 +1095,7 @@ 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;
--
1.7.9.5
--
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