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sh: ioremap() overhaul.

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ioremap() overhaul. Add support for transparent PMB mapping, get rid of
p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the
machvec, as everyone can use the generic ioremap() API instead. For PCI
memory apertures and other special cases, use the pci_iomap() API, as
boards are already required to get the mapping right there.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2006-09-27 15:16:42 +09:00
parent 26ff6c11ef
commit d7cdc9e8ac
15 changed files with 376 additions and 325 deletions
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11
include/asm-sh/mmu.h
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@@ -50,6 +50,8 @@ typedef unsigned long mm_context_t;
#define PMB_NO_ENTRY (-1)
struct pmb_entry;
struct pmb_entry {
unsigned long vpn;
unsigned long ppn;
@@ -60,16 +62,23 @@ struct pmb_entry {
* PMB_NO_ENTRY to search for a free one
*/
int entry;
struct pmb_entry *next;
/* Adjacent entry link for contiguous multi-entry mappings */
struct pmb_entry *link;
};
/* arch/sh/mm/pmb.c */
int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int *entry);
void set_pmb_entry(struct pmb_entry *pmbe);
int set_pmb_entry(struct pmb_entry *pmbe);
void clear_pmb_entry(struct pmb_entry *pmbe);
struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags);
void pmb_free(struct pmb_entry *pmbe);
long pmb_remap(unsigned long virt, unsigned long phys,
unsigned long size, unsigned long flags);
void pmb_unmap(unsigned long addr);
#endif /* __MMU_H */