mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 01:54:22 +00:00
fvp: plat_io_storage: remove duplicated code
Fixes ARM-software/tf-issues#41 The policy functions for each file to be loaded were implemented by copy/pasting one method and then varying the data checked. This patch creates a generic function to check the policy based on the data stored in a table. This removes the amount of duplicated code but also makes the code simpler and more efficient. Change-Id: I1c52eacf6f18a1442dabbb33edd03d4bb8bbeae0 Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
This commit is contained in:
Ryan Harkin
Dan Handley
parent
4bfc2d21a1
commit
48e2ca7967
1 changed files with 42 additions and 150 deletions
|
|
@ -39,13 +39,6 @@
|
|||
#include "io_memmap.h"
|
||||
#include "debug.h"
|
||||
|
||||
|
||||
typedef struct {
|
||||
char *image_name;
|
||||
int (*image_policy)(io_dev_handle *dev_handle, void **image_spec);
|
||||
} plat_io_policy;
|
||||
|
||||
|
||||
/* IO devices */
|
||||
static struct io_plat_data io_data;
|
||||
static struct io_dev_connector *sh_dev_con;
|
||||
|
|
@ -60,13 +53,6 @@ static void *const memmap_dev_spec;
|
|||
static void *const memmap_init_params;
|
||||
static io_dev_handle memmap_dev_handle;
|
||||
|
||||
static int fvp_bl2_policy(io_dev_handle *dev_handle, void **image_spec);
|
||||
static int fvp_bl31_policy(io_dev_handle *dev_handle, void **image_spec);
|
||||
static int fvp_bl32_policy(io_dev_handle *dev_handle, void **image_spec);
|
||||
static int fvp_bl33_policy(io_dev_handle *dev_handle, void **image_spec);
|
||||
static int fvp_fip_policy(io_dev_handle *dev_handle, void **image_spec);
|
||||
|
||||
|
||||
static io_block_spec fip_block_spec = {
|
||||
.offset = FLASH0_BASE,
|
||||
.length = FLASH0_SIZE
|
||||
|
|
@ -92,13 +78,23 @@ static io_file_spec bl33_file_spec = {
|
|||
.mode = FOPEN_MODE_R
|
||||
};
|
||||
|
||||
static plat_io_policy fvp_policy[] = {
|
||||
{BL2_IMAGE_NAME, fvp_bl2_policy},
|
||||
{BL31_IMAGE_NAME, fvp_bl31_policy},
|
||||
{BL32_IMAGE_NAME, fvp_bl32_policy},
|
||||
{BL33_IMAGE_NAME, fvp_bl33_policy},
|
||||
{FIP_IMAGE_NAME, fvp_fip_policy},
|
||||
{NULL, NULL}
|
||||
static int open_fip(void *spec);
|
||||
static int open_memmap(void *spec);
|
||||
|
||||
struct plat_io_policy {
|
||||
char *image_name;
|
||||
io_dev_handle *dev_handle;
|
||||
void *image_spec;
|
||||
int (*check)(void *spec);
|
||||
};
|
||||
|
||||
static struct plat_io_policy policies[] = {
|
||||
{ FIP_IMAGE_NAME, &memmap_dev_handle, &fip_block_spec, open_memmap },
|
||||
{ BL2_IMAGE_NAME, &fip_dev_handle, &bl2_file_spec, open_fip },
|
||||
{ BL31_IMAGE_NAME, &fip_dev_handle, &bl31_file_spec, open_fip },
|
||||
{ BL32_IMAGE_NAME, &fip_dev_handle, &bl32_file_spec, open_fip },
|
||||
{ BL33_IMAGE_NAME, &fip_dev_handle, &bl33_file_spec, open_fip },
|
||||
{0, 0, 0 }
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -150,122 +146,6 @@ static int open_semihosting(void *spec)
|
|||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Try to load BL2 from Firmware Image Package in FLASH first. If there is no
|
||||
* FIP in FLASH or it is broken, try to load the file from semi-hosting.
|
||||
*/
|
||||
static int fvp_bl2_policy(io_dev_handle *dev_handle, void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
void *local_image_spec = &bl2_file_spec;
|
||||
|
||||
INFO("Loading BL2\n");
|
||||
/* FIP first then fall back to semi-hosting */
|
||||
result = open_fip(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = fip_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
} else {
|
||||
result = open_semihosting(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = sh_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Try to load BL31 from Firmware Image Package in FLASH first. If there is no
|
||||
* FIP in FLASH or it is broken, try to load the file from semi-hosting.
|
||||
*/
|
||||
static int fvp_bl31_policy(io_dev_handle *dev_handle, void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
void *local_image_spec = &bl31_file_spec;
|
||||
|
||||
INFO("Loading BL31\n");
|
||||
/* FIP first then fall back to semi-hosting */
|
||||
result = open_fip(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = fip_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
} else {
|
||||
result = open_semihosting(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = sh_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Try to load BL32 from Firmware Image Package in FLASH first. If there is no
|
||||
* FIP in FLASH or it is broken, try to load the file from semi-hosting.
|
||||
*/
|
||||
static int fvp_bl32_policy(io_dev_handle *dev_handle, void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
void *local_image_spec = &bl32_file_spec;
|
||||
|
||||
INFO("Loading BL32\n");
|
||||
/* FIP first then fall back to semi-hosting */
|
||||
result = open_fip(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = fip_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
} else {
|
||||
result = open_semihosting(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = sh_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Try to load BL33 from Firmware Image Package in FLASH first. If there is no
|
||||
* FIP in FLASH or it is broken, try to load the file from semi-hosting.
|
||||
*/
|
||||
static int fvp_bl33_policy(io_dev_handle *dev_handle, void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
void *local_image_spec = &bl33_file_spec;
|
||||
|
||||
INFO("Loading BL33 (Normal world firmware)\n");
|
||||
/* FIP first then fall back to semi-hosting */
|
||||
result = open_fip(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = fip_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
} else {
|
||||
result = open_semihosting(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = sh_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Try to find FIP on NOR FLASH */
|
||||
static int fvp_fip_policy(io_dev_handle *dev_handle, void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
void *local_image_spec = &fip_block_spec;
|
||||
|
||||
result = open_memmap(local_image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = memmap_dev_handle;
|
||||
*(io_file_spec **)image_spec = local_image_spec;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
void io_setup (void)
|
||||
{
|
||||
int io_result = IO_FAIL;
|
||||
|
|
@ -305,21 +185,33 @@ int plat_get_image_source(const char *image_name, io_dev_handle *dev_handle,
|
|||
void **image_spec)
|
||||
{
|
||||
int result = IO_FAIL;
|
||||
plat_io_policy *policy;
|
||||
struct plat_io_policy *policy;
|
||||
|
||||
assert(image_name != NULL);
|
||||
assert(dev_handle != NULL);
|
||||
assert(image_spec != NULL);
|
||||
|
||||
policy = fvp_policy;
|
||||
while ((policy->image_name != NULL) &&
|
||||
(policy->image_policy != NULL)) {
|
||||
result = strcmp(policy->image_name, image_name);
|
||||
if (result == 0) {
|
||||
result = policy->image_policy(dev_handle, image_spec);
|
||||
break;
|
||||
if ((image_name != NULL) && (dev_handle != NULL) &&
|
||||
(image_spec != NULL)) {
|
||||
policy = policies;
|
||||
while (policy->image_name != NULL) {
|
||||
if (strcmp(policy->image_name, image_name) == 0) {
|
||||
result = policy->check(policy->image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*(io_file_spec **)image_spec =
|
||||
policy->image_spec;
|
||||
*dev_handle = *(policy->dev_handle);
|
||||
break;
|
||||
} else {
|
||||
result = open_semihosting(
|
||||
policy->image_spec);
|
||||
if (result == IO_SUCCESS) {
|
||||
*dev_handle = sh_dev_handle;
|
||||
*(io_file_spec **)image_spec =
|
||||
policy->image_spec;
|
||||
}
|
||||
}
|
||||
}
|
||||
policy++;
|
||||
}
|
||||
policy++;
|
||||
} else {
|
||||
result = IO_FAIL;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue