diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 08:16:42 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 08:16:42 +0200 |
| commit | d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707 (patch) | |
| tree | 2489b1831a1b5818af0927e4d3c8933bf7d05f31 /include/asm-sh/mmu.h | |
| parent | sh: page table alloc cleanups and page fault optimizations. (diff) | |
| download | linux-d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707.tar.xz linux-d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707.zip | |
sh: ioremap() overhaul.
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>
Diffstat (limited to '')
| -rw-r--r-- | include/asm-sh/mmu.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index 91c884634276..ec09589fa6ca 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -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 */ |