diff options
Diffstat (limited to 'sys/arm/include/devmap.h')
| -rw-r--r-- | sys/arm/include/devmap.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sys/arm/include/devmap.h b/sys/arm/include/devmap.h index d720e7d..ee16b67 100644 --- a/sys/arm/include/devmap.h +++ b/sys/arm/include/devmap.h @@ -30,6 +30,33 @@ #define _MACHINE_DEVMAP_H_ /* + * This structure is used by MD code to describe static mappings of devices + * which are established as part of bringing up the MMU early in the boot. + */ +struct arm_devmap_entry { + vm_offset_t pd_va; /* virtual address */ + vm_paddr_t pd_pa; /* physical address */ + vm_size_t pd_size; /* size of region */ + vm_prot_t pd_prot; /* protection code */ + int pd_cache; /* cache attributes */ +}; + +/* + * Register a platform-local table to be bootstrapped by the generic + * initarm() in arm/machdep.c. This is used by newer code that allocates and + * fills in its own local table but does not have its own initarm() routine. + */ +void arm_devmap_register_table(const struct arm_devmap_entry * _table); + +/* + * Directly process a table; called from initarm() of older platforms that don't + * use the generic initarm() in arm/machdep.c. If the table pointer is NULL, + * this will use the table installed previously by arm_devmap_register_table(). + */ +void arm_devmap_bootstrap(vm_offset_t _l1pt, + const struct arm_devmap_entry *_table); + +/* * Routines to translate between virtual and physical addresses within a region * that is static-mapped by the devmap code. If the given address range isn't * static-mapped, then ptov returns NULL and vtop returns DEVMAP_PADDR_NOTFOUND. |
