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remoteproc: elf_loader: Add elf resource table load support

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Add rproc_elf_load_rsc_table(), which searches for a resource table in
an elf64/elf32 image, and if found, copies it to device memory.
Add also the elf32 and elf64 variants of this API.
Add a test for this.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Fabien Dessenne
2019-10-30 14:38:28 +01:00
committed by Tom Rini
parent 152781d464
commit ffcb880de8
3 changed files with 419 additions and 11 deletions
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70
include/remoteproc.h
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@@ -277,6 +277,64 @@ int rproc_elf_load_image(struct udevice *dev, unsigned long addr, ulong size);
* image.
*/
ulong rproc_elf_get_boot_addr(struct udevice *dev, ulong addr);
/**
* rproc_elf32_load_rsc_table() - load the resource table from an ELF32 image
*
* Search for the resource table in an ELF32 image, and if found, copy it to
* device memory.
*
* @dev: device loading the resource table
* @fw_addr: ELF image address
* @fw_size: size of the ELF image
* @rsc_addr: pointer to the found resource table address. Updated on
* operation success
* @rsc_size: pointer to the found resource table size. Updated on operation
* success
*
* @return 0 if a valid resource table is successfully loaded, -ENODATA if there
* is no resource table (which is optional), or another appropriate error value.
*/
int rproc_elf32_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr, ulong *rsc_size);
/**
* rproc_elf64_load_rsc_table() - load the resource table from an ELF64 image
*
* Search for the resource table in an ELF64 image, and if found, copy it to
* device memory.
*
* @dev: device loading the resource table
* @fw_addr: ELF image address
* @fw_size: size of the ELF image
* @rsc_addr: pointer to the found resource table address. Updated on
* operation success
* @rsc_size: pointer to the found resource table size. Updated on operation
* success
*
* @return 0 if a valid resource table is successfully loaded, -ENODATA if there
* is no resource table (which is optional), or another appropriate error value.
*/
int rproc_elf64_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr, ulong *rsc_size);
/**
* rproc_elf_load_rsc_table() - load the resource table from an ELF image
*
* Auto detects if the image is ELF32 or ELF64 image and search accordingly for
* the resource table, and if found, copy it to device memory.
*
* @dev: device loading the resource table
* @fw_addr: ELF image address
* @fw_size: size of the ELF image
* @rsc_addr: pointer to the found resource table address. Updated on
* operation success
* @rsc_size: pointer to the found resource table size. Updated on operation
* success
*
* @return 0 if a valid resource table is successfully loaded, -ENODATA if there
* is no resource table (which is optional), or another appropriate error value.
*/
int rproc_elf_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr, ulong *rsc_size);
#else
static inline int rproc_init(void) { return -ENOSYS; }
static inline int rproc_dev_init(int id) { return -ENOSYS; }
@@ -304,6 +362,18 @@ static inline int rproc_elf_load_image(struct udevice *dev, ulong addr,
{ return -ENOSYS; }
static inline ulong rproc_elf_get_boot_addr(struct udevice *dev, ulong addr)
{ return 0; }
static inline int rproc_elf32_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr,
ulong *rsc_size)
{ return -ENOSYS; }
static inline int rproc_elf64_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr,
ulong *rsc_size)
{ return -ENOSYS; }
static inline int rproc_elf_load_rsc_table(struct udevice *dev, ulong fw_addr,
ulong fw_size, ulong *rsc_addr,
ulong *rsc_size)
{ return -ENOSYS; }
#endif
#endif /* _RPROC_H_ */